Programming & Coding Projects

opportunity

Outbound AI TeleMarketer Required

I have wanted an outbound AI Marketer for the last few months. We have had a couple of different developers working on it but in the end, they didn't have the skillset to finish the job. We have a Twillio account and 11Labs. The data is supplied. The AI will either have a name or ask for the owner. The outcome of the call and the information taken, needs to be saved. Using a dialler system to eliminate no answers. This will need to be scaleable. Up to booking enough appointments for 100+ agents. If this opportunity is of interest, you are available, you speak good English (Google meets, voice note messages) and you have great communication skills, please get in touch letting me know your relevant experience, available time to commit to the project and your best price to be paid on successful completion. The stated price on the project is higher than the desired price. Please do not ask 'what is my budget & quote for the finished job (prior to scaling)'. You are competing with all other applicants. Please make sure your quote includes turnaround time & the process you intend to build on. The person/team I believe can do the job in the quickest time and at the best price will get the project. This is a long term opportunity as we will need ongoing support and development. A copy of the typical pitch & instructions. https://drive.google.com/drive/folders/1a8EvF36eNdmIZZGyRrGlVPOe4orxG3o5?usp=drive_link PLEASE AVOID AI GENERATED REPLIES. WE NEED TO WORK WITH SOMEBODY GENUINE THAT CAN THINK FOR THEMSELVES.

Part-Time Full Stack Developer

We are looking for a skilled Mid-Level Software Developer to join our team on a part-time basis. This role is ideal for a developer who has experience across multiple technologies, can work independently, and is comfortable contributing to a variety of web and mobile projects. 1. Engagement - Part-time position - Flexible schedule - Long-term collaboration preferred - Fully remote 2. Responsibilities - Develop and maintain web and mobile applications - Implement new features and enhancements - Integrate APIs and third-party services· - Debug, troubleshoot, and optimize existing systems - Collaborate with project stakeholders when needed - Deliver clean, maintainable, and well-documented code 3. Required Qualifications - 3+ years of professional software development experience - Experience with both frontend and backend development - Experience with some of the following: · React, Next.js · Node.js, Express, NestJS · PHP/Laravel · Python/Django/FastAPI · React Native or Flutter · SQL and NoSQL databases - Strong problem-solving abilities - Experience working independently with minimal supervision - B2+ English communication skills (written and spoken) 4. Nice to Have - AWS, Azure, or GCP experience - Docker and CI/CD experience - AI/LLM integrations - Mobile app deployment experience - Experience working with startups or fast-moving projects 5. What We're Looking For - Reliable and responsive - Detail-oriented - Able to switch between different projects and technologies - Comfortable learning unfamiliar tools when required - Takes ownership of assigned tasks

Client Facing Project Coordinator - Web Development

-About us We've been building software - web applications, mobile apps, SaaS platforms, custom business tools for international clients. Our developers handle all the building. We are looking for a client-facing team member to manage communication with our clients. -The role This is a communication and coordination role not a coding role. You will not write any code; our development team does all the building. Your job is to be the bridge between our clients and our team. You need solid, intermediate-level web development knowledge so you can understand client needs, speak about projects confidently, and explain technical things in simple language. -What you'll do *Attend and lead video meetings with our clients *Understand client requirements and write them down clearly for our team *Explain project progress and updates to clients *Answer clients' general technical questions about their web projects *Keep communication smooth and professional between clients and our developers -What we're looking for: *Resident of the United States *Excellent spoken and written English *Confident and professional on video calls *web development knowledge enough to discuss projects, not to build them *Able to explain technical ideas in a simple way *Reliable and quick to respond -Nice to have *Past experience as a project manager, account manager, or in another client-facing role at a tech or web company *Experience working with a remote development team -Details We can discuss more about budget during our conversation. -To apply Please start your proposal with the word "BRIDGE" so we know you read this post. In a few sentences, tell us your experience with client communication and your level of web development knowledge.

Senior Blockchain/Smart Contract Engineer

Seeking a Senior Blockchain/Smart Contract Engineer to design, develop, and maintain secure, gas-efficient Solidity contracts for DeFi and blockchain protocols. Responsibilities include authoring robust smart contracts, creating automated tests with Foundry/Hardhat, performing security reviews, mitigating risks (flash loans, oracle manipulation, MEV, governance attacks), leveraging analysis tools, supporting audits and deployments, optimizing gas and storage, and documenting technical decisions. Requirements: strong Solidity/EVM expertise, Foundry/Hardhat experience, deep DeFi knowledge, security-first mindset, testing and debugging proficiency, familiarity with OpenZeppelin and upgradeable patterns, and excellent attention to detail. Nice-to-have: Rust/TypeScript, Solana/Anchor experience, formal verification or fuzzing exposure, and multi-chain familiarity. Competitive salary, benefits, flexible hours, and growth opportunities.

opportunity

Backend Developer to construct a isolated, testing environment

Property Investor Africa seeks an independent backend developer to build an isolated testing environment simulating an enterprise real estate data provider. Deliverables: a relational mock database with 500+ structurally varied asset records (images, pricing, coordinates, metadata); a script to stream INSERT, UPDATE, DELETE payloads reflecting market dynamics; endpoints emitting simulated real-time bursts to stress-test listeners; REST API and secure webhook feeds; API schema and 14-day integration support. Must have 4+ years backend architecture experience, expertise in event-driven systems, webhooks, and secure RESTful streams, and be ready to deliver and begin support within 48–72 hours of engagement.

opportunity

Creation of an AI agent for Claude (Opus 4.8)

Build an AI Web & WhatsApp Chatbot (Node.js + Claude API) We're a company looking for an experienced developer to build a customer-facing AI chat assistant powered by Anthropic's Claude API, running on both our website and WhatsApp Business. The assistant answers visitor questions using content drawn exclusively from our own website, captures contact details, and emails each completed conversation to our team so they can follow up. This is a self-contained, end-to-end build with clear, documented deliverables. Scope of work: A Node.js + Express backend that calls the Claude API, keeping the full conversation server-side and never exposing credentials to the browser. A lightweight, embeddable web widget: a floating launcher that invites visitors to ask, a branded chat panel, a custom agent name and logo, and a welcome message. A WhatsApp Business integration through Meta's official Cloud API: webhook verification, message send/receive, and per-user session handling, reusing the same core logic as the web agent so both channels behave consistently. A retrieval-augmented (RAG) layer that crawls our sitemap on a nightly schedule, indexes the entire site, and grounds every answer in that content, with strict anti-hallucination rules that direct users to a contact address when information isn't available. Automatic email delivery of each transcript through our SMTP server (Postfix, SSL) on both channels, sent when a conversation finishes. Spam and abuse protection: rate limiting, honeypot fields, input validation, and a configurable daily cost cap to protect the API budget. Requirements: strong JavaScript/Node.js, solid experience with REST APIs and LLM integration, familiarity with embeddings and RAG pipelines, the WhatsApp Business Cloud API, SMTP configuration, and sound security practices. GDPR awareness is a plus. Deliverables: production-ready, documented code with full setup instructions. Generic placeholders are provided for all company-specific values, so configuration is straightforward. Please send a brief proposal, relevant work samples, and your estimated timeline and budget.

Login Testing & Data Extraction Automation

Deadline is 23.00. 2026-06-05. We are looking for an experienced automation developer to build a solution that can process a list of authorized test accounts, verify login credentials, and extract specific account information for reporting purposes. The project is intended for legitimate QA, testing, or account-management workflows and must comply with all applicable laws, platform terms of service, and authorization requirements. The tool should accept a CSV or TXT file containing usernames or email addresses along with passwords. It should attempt to log into each account, determine whether the login was successful or failed, and record the result. For successfully authenticated accounts, the tool should collect available information including shipment totals, country counts (for example, GB: 2, US: 9), account type (Individual or Business), account status (Active or Inactive), account country, account address, company name, and whether an active payment method is attached to the account. The solution must not collect, display, store, export, or process any sensitive payment information. This includes credit card numbers, expiration dates, CVV codes, bank account details, or payment credentials. The only payment-related information that should be returned is a simple Yes or No indicator showing whether an active payment method exists. The final output should be provided as a CSV report containing the username, login result, shipment total, country count, account type, account status, account country, account address, company name, payment method present (Yes/No), and any notes or error messages encountered during processing. OB2 is the preferred technology, The solution should include proper error handling, retry logic where appropriate, clear documentation, and complete source code delivery. The final deliverables should include the full source code, setup instructions, documentation, an example output CSV file, and a demonstration using authorized test accounts.

Lead Blockchain Engineer – Stablecoins & Financial Systems

StableNaira is hiring a Senior Blockchain Engineer to help build and maintain blockchain-based fintech software for payment workflows, liquidity movement, wallet integrations, and digital asset settlement tools. This is a fully remote role with direct collaboration between our engineering, product, and infrastructure teams. You will work on smart contracts, backend services, blockchain APIs, transaction systems, monitoring tools, and secure integrations with EVM-compatible networks. Responsibilities Design, develop, test, and maintain smart contracts and blockchain integrations. Build backend services for wallets, transaction flows, and digital asset protocols. Develop APIs, transaction processing services, and monitoring systems. Improve transaction reliability, gas efficiency, and settlement performance. Work with backend, frontend, DevOps, product, and compliance-related teams. Participate in architecture planning, protocol integrations, and security reviews. Write automated tests and support CI/CD workflows. Troubleshoot blockchain, backend, and distributed infrastructure issues. Improve system observability, documentation, and engineering best practices. Research relevant Layer 2, EVM, and Web3 technologies when needed. Requirements 4+ years of professional software development experience. Strong experience with Solidity, smart contracts, and the EVM ecosystem. Backend development experience with Node.js, TypeScript, Go, or Python. Experience with Web3 libraries, blockchain APIs, wallets, and transaction flows. Understanding of gas optimization, smart contract security, and blockchain reliability. Experience with databases, REST APIs, distributed systems, Docker, Kubernetes, or CI/CD tools. Strong debugging, problem-solving, and communication skills. Ability to work independently in a remote team environment. Degree in Computer Science, Software Engineering, or equivalent practical experience. Nice to Have Experience with stablecoin, DeFi, payment, or fintech products. Knowledge of Layer 2 networks, cross-chain systems, or bridge integrations. Experience building high-availability backend systems. Open-source contributions or public blockchain project experience. Experience with security reviews, audits, or formal smart contract testing. Work Arrangement Fully remote position. Direct hiring by StableNaira. Full-time or long-term contract arrangement may be considered. Compensation will be based on experience and listed through the Hubstaff pay-rate section. Flexible working schedule with agreed team overlap. Why Join StableNaira You will work on practical blockchain and fintech software with a team focused on secure payment, wallet, and settlement infrastructure. This role gives you the opportunity to contribute to core architecture, improve production systems, and help build reliable blockchain services for real-world financial use cases.

Updates & Fixes to Existing Laravel website and webapp

We have some existing bugs that need patching on a Laravel admin website and wrapped web-app project. A couple of Laravel error pages that need resolving as well as some updates required to the user registration process. Full spec can be shared prior to quoting. Applicants must be experienced in working with Laravel and wrapped webview Android/iOS projects. Other work also required on similar projects.

opportunity

Senior Cisco Network & Security Consultant Required

We are seeking a highly experienced Cisco-certified Network and Security Consultant to assist with a Cisco Firepower deployment and wider network troubleshooting within our production environment. This is not simply a firewall migration project. We require a consultant who can take a holistic view of the network and troubleshoot issues across switching, routing, VLANs, DHCP, VoIP/PBX connectivity, and security infrastructure. Current Environment Fortinet FortiGate 70F (existing firewall) Cisco Firepower 1010 Cisco Firepower Management Center (FMC) HP switching infrastructure TP-Link switching infrastructure VLAN-segmented network VoIP/PBX services Key Requirements The successful consultant must have: Strong hands-on Cisco Firepower (FTD) experience Strong Cisco Firepower Management Center (FMC) experience Advanced networking and troubleshooting skills Experience with routing, switching, VLANs, DHCP, NAT, QoS, and network services Experience troubleshooting VoIP/PBX-related networking issues Experience working within mixed-vendor environments Ability to perform root-cause analysis and provide practical remediation recommendations Current Issues Requiring Investigation Examples include: PBX system not obtaining an IP address on its assigned VLAN VLAN communication and segmentation issues DHCP-related issues Network traffic flow analysis and validation General network performance and connectivity troubleshooting Firewall Project Scope Review existing Fortinet configuration Assist with Fortinet to Cisco Firepower migration Review and validate firewall policies and NAT rules Support testing and cutover activities Provide best-practice recommendations for Cisco Firepower and FMC Mandatory Certifications Applicants must hold one or more of the following: CCNP Enterprise CCNP Security CCIE Enterprise Infrastructure CCIE Security Equivalent advanced Cisco certifications Please provide certification details when applying. Required Experience When responding, please include: Your Cisco certifications. Years of Cisco networking experience. Years of Cisco Firepower/FMC experience. Examples of similar projects completed. Experience with HP and/or TP-Link switching environments. Experience troubleshooting VLAN, DHCP, VoIP, and PBX-related issues. Your availability within the next 1–2 weeks. Engagement Remote initially. Potential for onsite support if required. Immediate start preferred. We are looking for a senior-level consultant capable of independently assessing the environment, identifying issues, and delivering practical solutions with minimal supervision.

I am looking for a full-stack developer

Hello, I’m currently looking for a reliable client-facing representative to join our growing startup agency for long-term collaboration. About us: I run a startup agency with around 20 team members, and we’re actively expanding our business and client network. Most of our projects are web-based, and we work with international clients, so communication and professionalism are very important for us. What we’re looking for: US or UK resident Strong English communication skills Comfortable joining client meetings and interviews Ability to explain technical concepts in simple words to non-technical clients Reliable, professional, and collaborative mindset Comfortable managing multiple conversations and projects at the same time Bonus: Software development background or technical knowledge Understanding of modern web development and software workflows Experience working with developers or tech teams This role is mainly focused on client communication, relationship management, and representing our agency professionally during meetings and interviews. We’re looking for someone interested in stable and long-term cooperation, not short-term work. If this sounds like a good fit, feel free to send a short introduction about yourself, your background, and your experience. Looking forward to working together.

Seeking a Seasoned Low Latency HFT Engineer

• Connects directly to Interactive Brokers via API. • Monitors authorized signal providers or trading strategies. • Uses artificial intelligence to analyze financial news and market sentiment. • Executes futures trades automatically. • Provides advanced risk management and real-time monitoring. • Supports scaling across multiple trading accounts. Core System Requirements Interactive Brokers Integration • Full integration with IBKR API. • Real-time market data access. • Automated order execution. • Support for futures, equities, ETFs, and options. • Position monitoring and account synchronization. • Trade audit logs. Signal Replication Engine • Monitor approved signal feeds. • Detect position openings and closures. • Replicate positions automatically. • Adjustable trade sizing. • Multi-account support. • Real-time synchronization. AI Market Intelligence Engine • Financial news aggregation. • NLP sentiment analysis. • Economic calendar monitoring. • Market-impact scoring. • Trend analysis. • Event-driven trading filters. Automated Execution System • Market orders. • Limit orders. • Stop orders. • Bracket orders. • Position scaling. • Dynamic order routing. Risk Management Framework • Maximum daily loss limits. • Maximum drawdown controls. • Position-size limits. • Exposure limits. • Volatility filters. • Automated trading shutdown protocols. • Trade validation engine. Analytics and Dashboard • Real-time account monitoring. • Performance metrics. • P&L tracking. • Trade history. • Risk analytics. • Strategy performance reporting. • Mobile-friendly dashboard. Preferred Technical Skills Required: • Python • Interactive Brokers API (IBKR) • Quantitative Finance • Algorithmic Trading Systems • REST APIs • Database Development Preferred: • Machine Learning • Artificial Intelligence • Natural Language Processing • Financial Market Data Systems • Cloud Infrastructure • Docker • Kubernetes • Linux Server Administration Deliverables Phase 1 • System architecture • Technical specifications • Development roadmap Phase 2 • IBKR integration • Automated execution engine • Risk management framework Phase 3 • AI news and sentiment analysis engine • Signal replication module • Monitoring infrastructure Phase 4 • Dashboard development • Testing and optimization • Deployment and documentation Performance Expectations • Reliable automated execution. • Stable operation during market hours. • Low-latency order routing through Interactive Brokers. • Comprehensive risk controls. • Scalable architecture. • Secure and maintainable codebase. Important Notes The platform must comply with all Interactive Brokers policies, exchange rules, and applicable financial regulations. The system should be designed with a primary focus on reliability, risk management, transparency, and long-term scalability.

Full-Stack Developer Needed for Growing Startup Agency

I’m currently looking for a reliable full-stack developer to join our growing team for long-term collaboration. About us: I run a startup agency with around 20 team members, and we’re expanding our business and client base. Most of our projects are web-based, and we work with international clients, so communication is very important for us. What we’re looking for: 3+ years of experience in full-stack development Good English communication skills Ability to explain technical things in simple words to non-technical clients Reliable, collaborative, and responsible mindset Comfortable joining client meetings/interviews when needed Tech stack can vary depending on projects, but experience with modern web technologies is important. We’re looking for someone interested in stable and long-term cooperation, not just a short-term project. If this sounds like a good fit, feel free to send your experience, portfolio, and a short introduction about yourself. Looking forward to working together.

I need a full stack blockchain developer

We are building a Web3 NFT-based minting & staking project using React, JavaScript, and blockchain integrations. The current version is a functional prototype that simulates core game mechanics and user flows. While it's not production-ready, it sets a strong foundation for blockchain gaming with staking and NFT minting mechanics. We’re planning to launch our MVP in about 1–2 months. Can we do a short trial technical assessment just before start? for 5-10 mins minor changes

opportunity

Power Apps UX/UI Specialist – Matrix Interface

We are looking for an experienced Microsoft Power Apps UX/UI specialist to assist with designing and developing a custom registration matrix interface within a Microsoft Power Platform solution. The platform is used to manage fund registrations across multiple jurisdictions and currently operates using Dataverse and model-driven apps. We require a more scalable and user-friendly matrix-style interface for operational users. The existing standard model-driven grid functionality has limitations with horizontal and vertical scrolling, freeze pane/fixed column behaviour, usability for large matrices, dynamic hiding/showing of columns, and overall UX when working with high-volume registration data. We are exploring a custom Canvas App, Custom Page, or PCF-style approach and are looking for someone with strong experience designing advanced Power Apps interfaces and data-driven matrix/grid layouts. Scope of Work The successful contractor will assist with designing a scalable matrix-style UI within Power Apps, creating a responsive scrolling interface, implementing fixed identifier columns (freeze-pane style behaviour), dynamically hiding columns where no data exists, improving usability for large datasets, advising on the best technical approach (Canvas App vs PCF vs Custom Page), working with Dataverse tables and relationships, supporting UX optimisation for operational users, and potentially implementing proof-of-concept components. The solution will need to support Funds, Sub-Funds, Share Classes, jurisdiction/registration locations, and registration statuses and dates. Technical Environment Current technology stack includes Microsoft Power Platform, Dataverse, Model-Driven Apps, Power Apps Grid Control, JavaScript, Power Automate, and Microsoft 365. Experience with PCF Controls, React/TypeScript, advanced Canvas App design, responsive Power Apps layouts, complex Dataverse-driven interfaces, and grid or matrix-style UI implementations would be highly advantageous. Deliverables Initial engagement would focus on UX/UI review and recommendations, proposed technical approach, wireframe or mock-up design, working prototype/proof of concept, and recommendations for scalable implementation. There is potential for follow-on implementation work depending on outcome. Ideal Candidate We are looking for someone with strong experience in Power Apps UX/UI design who has built advanced/custom interfaces beyond standard model-driven forms, understands Dataverse architecture, can advise pragmatically on platform limitations, has experience building matrix/grid-style interfaces, and can demonstrate similar previous work. Additional Information This is a professional/legal services environment, so usability, scalability, and maintainability are important. We are not looking for a basic form redesign; the requirement is for a more sophisticated operational interface for managing large volumes of registration data efficiently.

Adobe Express Embed SDK Microsite

We are building a branded microsite that embeds Adobe Express to allow users to customize a predefined template and export their design. The experience will be used in a kiosk-style environment (iPad + browser), so the UI must be simple, controlled, and resilient. We are looking for a developer to implement a working MVP, with potential to extend into a production-ready deployment. Core Experience (What We’re Building) User flow: User lands on branded microsite Clicks “Start” → launches Adobe Express editor with a predefined template Edits design inside embedded Express experience A visible countdown timer runs during the session User clicks “Finish” System prompts for file name only (single input) File is exported and automatically uploaded to Dropbox System resets for next user Technical Requirements Frontend Build a responsive microsite (desktop + iPad Safari) Implement Adobe Express Embed SDK (v4) Launch a specific template directly (not template browser) Embed Express using inline container Create a branded wrapper UI Implement countdown timer (top corner) start / reset flow filename input modal (minimal UI) Handle SDK callbacks: onLoad onPublish onCancel onError Backend Create endpoint to: receive exported asset from frontend process file (likely base64/blob) upload to Dropbox Dropbox Integration One of the following approaches (you can recommend): Option A (Preferred): Direct upload to our Dropbox via API (OAuth + server-side upload) Option B: Use Dropbox Saver if appropriate Kiosk Behavior Auto-reset after submission or timeout Prevent user getting “stuck” in flow Clean UX for repeated use Must work reliably on iPad in browser (Safari) Deliverables Working microsite (frontend) Backend API (Node / serverless preferred) Adobe Express integration fully functional Dropbox upload working end-to-end Clean, minimal UI Basic error handling (network / export failures) Setup instructions + environment variables documented Tech Preferences Frontend: React, Next.js, or simple JS (open to recommendation) Backend: Node.js (Express / serverless functions) Hosting: Vercel / AWS / similar Clean, readable code (this may be extended later) Experience with: Adobe Express Embed SDK iframe-based app embedding kiosk / event experiences iPad testing experience Dropbox API familiarity Timeline MVP target: Fast turnaround preferred Budget Open to: Fixed price (preferred if scoped clearly) Hourly (with estimate) To Apply Please include: Relevant experience with: embedded SDKs or iframe apps file upload / export workflows Example projects (especially anything interactive or kiosk-style) Your proposed stack Estimated timeline and cost Any questions or suggested improvements to the architecture Notes This is not a generic website build — requires integration thinking We value clean UX and reliability over visual complexity Opportunity for follow-on work (admin controls, analytics, multi-template support)

Senior Full-Stack Casino Platform Developer (Remote)

We are looking for an experienced Full-Stack Developer to help build and scale a modern online casino platform. The ideal candidate has strong experience with scalable backend systems, real-time applications, payment integrations, gaming systems, and secure production infrastructure. Project Overview We are building a high-performance casino/gaming platform with: User authentication & wallet system Casino game integrations Real-time gameplay features Payment & crypto integrations Admin dashboard Bonus/referral systems Scalable cloud infrastructure Secure and compliant backend architecture Responsibilities Develop and maintain frontend and backend systems Build secure APIs and real-time gaming services Integrate third-party casino/game providers Implement wallet, payment, and transaction systems Optimize platform performance and scalability Collaborate with product and design teams Ensure platform security and reliability Write clean, maintainable, production-quality code Required Skills Strong experience with: React / Next.js TypeScript / JavaScript Node.js PostgreSQL / MySQL REST APIs & WebSockets Experience with: Casino, betting, gaming, or fintech platforms Payment gateway integrations Docker & cloud infrastructure Redis / queue systems Authentication & security best practices Understanding of scalable architecture and high-traffic systems Nice to Have Crypto wallet/payment experience Provably fair gaming systems AI/chatbot integration DevOps / CI/CD experience Experience with gaming regulations or compliance Project Type Remote Contract / Long-term possible Flexible working hours To Apply Please send: Your portfolio or GitHub Relevant gaming/casino project experience Tech stack expertise Availability Expected hourly/monthly rate We are looking for developers who can move fast, communicate clearly, and deliver production-ready systems.

Smart Contract Developer - Blockchain Defi APP

The future of Web3 starts with you — join us as a Blockchain / Web3 Developer! Requirements 3+ years of software development experience 1–2+ years of experience in blockchain, Web3, crypto, or DeFi projects Strong experience with Solidity and smart contract development in the EVM ecosystem Good understanding of Ethereum / EVM architecture, gas optimization, token standards, and smart contract security Experience with Web3 tools such as Hardhat, Foundry, Remix, MetaMask, Ethers.js, Web3.js, Viem Experience deploying and maintaining smart contracts on testnet and mainnet Knowledge of DeFi: AMMs, staking, lending, bridges, oracles, stablecoins, and liquidity pools Backend integration experience: APIs, indexers, event listeners, wallets, or transaction services Understanding of common blockchain security risks Experience with JavaScript, TypeScript, Python, Node.js, or similar backend technologies Familiarity with Git, CI/CD, testing frameworks, code reviews, and documentation Responsibilities Design, develop, test, and deploy smart contracts for Whitechain and Web3 products Build blockchain features for DeFi platforms, wallets, GameFi, and ecosystem tools Write secure and gas-efficient Solidity code Create unit tests, integration tests, and deployment scripts Integrate smart contracts with backend services, frontend apps, wallets, APIs, and blockchain infrastructure Review existing smart contract code and suggest improvements Support audits, security reviews, and vulnerability remediation Monitor deployed contracts and help resolve production issues Research new blockchain protocols, DeFi mechanics, and EVM improvements Contribute to technical documentation and best practices Nice to Have Experience with L1 / L2, rollups, bridges, validators, nodes, or RPC infrastructure Experience with audit tools such as Slither, Mythril, Echidna, Tenderly, or OpenZeppelin Defender Knowledge of The Graph, SubQuery, custom indexers, or blockchain analytics pipelines Experience with account abstraction, cross-chain protocols, or oracle integrations Open-source Web3 contributions or a public GitHub portfolio Understanding of tokenomics, staking, governance, or protocol economics Experience in fintech, crypto exchange, DeFi, wallet, or Web3 infrastructure companies If you are passionate about Solidity, EVM, DeFi, and building reliable Web3 products, we would be happy to hear from you.

opportunity

COBOL Developer - Legacy System Migration Assessment (1 week)

We're evaluating a legacy COBOL system for a migration project and need someone who can review the existing codebase, document the business logic, and assess complexity. The system handles financial transaction processing. Looking for: Production COBOL experience (mainframe or distributed) Familiar with financial/banking/insurance systems Can document business logic from existing code Available this week This is a short assessment engagement.

opportunity

Robotics Localisation /SLAM for Small UAV Navigation Research

We are looking for a robotics localisation / autonomy expert to help us select and validate the right navigation architecture for a small UAV research platform. This is not a drone-pilot, mapping or photogrammetry project. We are looking for someone with hands-on experience in robotics localisation, visual odometry, visual-inertial odometry, SLAM, sensor fusion and UAV flight-stack integration. The initial project is a short technical sprint. You will review our current sensor stack, test data and operating assumptions, then recommend a practical localisation architecture that can be built and tested on low-cost hardware. Relevant experience includes: ROS2 PX4 or ArduPilot MAVLink / MAVROS / MAVSDK Visual odometry / visual-inertial odometry SLAM, including ORB-SLAM3, VINS-Fusion, OpenVINS, RTAB-Map or similar EKF / UKF / Kalman filtering Camera and IMU calibration Optical flow OpenCV Gazebo / PX4 SITL or similar simulation tools Raspberry Pi / Jetson-class deployment Flight-log analysis and trajectory validation The output should be a concise technical recommendation covering: Recommended localisation architecture Candidate algorithms to test Sensor and calibration requirements Data logging requirements Likely failure modes Simulation and field-test plan 30-day implementation roadmap Clear recommendation on what not to do The goal is to produce a practical, buildable roadmap for improving onboard localisation on a small UAV using visual, inertial and map-based cues. Please apply only if you have direct experience with robotics localisation, SLAM/VIO, sensor fusion or UAV autonomy. In your response, please include examples of relevant previous work and briefly explain which approaches you would consider for this type of UAV localisation problem.