Programming & Coding Projects

Blockchain Developer – Smart Contracts, ZK & Cross-Chain

Project Description: We need a freelance Blockchain Developer for a defined project to build smart contracts, integrate ZK proofs, and implement cross-chain settlement for a multi-chain protocol. This is a fixed-scope freelance engagement, not a permanent role. Deliverables: - Deploy smart contracts on Ethereum, Solana, Base, Arbitrum, and Polygon - Integrate ZK proof systems (Ligero/Arc) - Implement cross-chain settlement using CCTP and Hyperlane - Integrate FHE (Fhenix/Zama) for encrypted state - Build a backend API with Express and TypeScript for a 7-stage payment pipeline - Provide tested, secure, and documented production-ready code Required Experience: - 4+ years in software development - 2+ years in blockchain development with production deployments - Solidity and TypeScript/Node.js - Experience with EVM chains and cross-chain messaging (Hyperlane, Wormhole, or CCTP) - Working knowledge of ZKPs and cryptography - Experience working remotely and communicating asynchronously Preferred (not required): - Experience with Solana - Familiarity with FHE (Fhenix/Zama) - Prior work with CCTP in production

Freelance DevOps Support Engineer (Part-Time, Remote) | EUROPE

About Us: We are building next-generation DevOps and Cloud engineers through hands-on, outcome-driven education. Our students don't just watch content — they build, deploy, break, and ship real systems. To support this mission, we're looking for an experienced DevOps / Cloud Engineer who genuinely enjoys helping others learn and grow. This is a part-time, support role — straightforward, focused, and impactful. The Role: As a DevOps / Cloud Support Engineer, your primary responsibility is to provide technical support to our students on Discord across our DevOps and DevSecOps bootcamp programs. You will combine deep technical expertise with clear, patient communication to ensure students feel supported and unblocked throughout their learning journey. This role is 100% remote, part-time, must overlap with EUROPE time zone(CEST). Key Responsibilities Student Technical Support Answer student technical questions within 2 hours on Discord across our DevOps and DevSecOps trainings Help students troubleshoot issues with tools, commands, configurations, and concepts Proactively check in on open threads to ensure students are unblocked and making progress Foster a supportive, high-trust learning environment Open, communicative, and approachable — students should feel comfortable reaching out at any time Support is primarily written via Discord, but when needed, be ready to jump on a short call with a student to solve issues in real time and unblock them faster Course Quality Feedback Flag and document course content that appears outdated, broken, or unclear Report recurring student issues to the course maintenance team for fixes and updates Contribute observations that help keep our bootcamp content aligned with current industry standards Career Development Support (occasional, on-demand) Conduct 1-on-1 career calls with students — mock interviews, career planning, and job search strategy Review and provide actionable feedback on student CVs and LinkedIn profiles Help students prepare for technical interviews Guide students on how to present their bootcamp projects and hands-on experience to hiring managers Required Skills & Experience 3+ years of professional DevOps experience Solid hands-on experience with Docker, Kubernetes, CI/CD pipelines, Terraform, AWS and Scripting Strong understanding of DevOps concepts and workflows Strong written English — clear, patient, and helpful communication style Available to cover EUROPE time zone (CEST) Comfortable working in a fast-moving, remote environment Nice to Have Prior experience with DevSecOps concepts and tools Experience mentoring, teaching, or coaching engineers Familiarity with Discord as a support and community channel Exposure to AI-driven DevOps tools and workflows Compensation & Hours Hourly contract + Base salary for availability 10-20 hours per week, flexible schedule based on student demand Competitive hourly rate for top-tier candidates Why Join Us Direct influence on engineers' careers High-autonomy and ownership in your work. Work with modern DevOps tooling and a passionate learning community Fully remote, flexible schedule Long-term collaboration potential

opportunity

Full-Stack Developer for AI SEO & GEO Workflow Platform

We are looking for an experienced full-stack developer to help complete Tessy, an internal AI-powered platform for managing SEO and GEO client delivery. The frontend has already been built in Lovable and is being moved into Replit. We now need a developer to review the existing code, complete the application architecture and build the backend, database, integrations and production workflows. Core Phase 1 Features * Secure login and role-based access for admins, account managers, delivery staff and clients * Client onboarding and account setup * Separate but connected SEO and GEO workflows * AI-generated strategy drafts based on client data and templates * Automated “Critic” review before human approval * Inline editing and approval by account managers * Automatic generation of a rolling three-month task plan * Task assignment, statuses and review workflows * Client approval and delivery through Tessy * PDF or portal-based deliverables * Logging of publication dates and live URLs * Recording account manager edits as before-and-after data * Capturing performance results two and four weeks after publication Tessy should manage the delivery workflow from onboarding through to release and performance tracking. The detailed PRD and Lovable prototype will be provided. Developer Responsibilities * Review the Lovable and Replit codebase * Recommend a suitable production architecture * Build the backend and database * Connect the existing frontend to live data * Integrate AI APIs and structured outputs * Implement authentication and user permissions * Build the workflow, task and approval logic * Add file storage and PDF generation * Test, deploy and document the application We are open to recommendations on the final stack. Relevant experience may include React, TypeScript, Supabase, PostgreSQL, Node.js, OpenAI or Anthropic APIs, Lovable and Replit. When Applying Please include: * Examples of similar applications you have built * Your experience taking AI-generated prototypes into production * Your experience with Lovable and Replit * Your recommended technical approach * Your availability * An estimated timeline and budget * Any major risks or questions you would raise before starting Please begin your proposal with “Tessy” so we know you have read the brief. We prefer milestone-based delivery with regular demonstrations and access to the working code. NB: We have a PRD if requested and can provide access to loveable FE.

CRM Developer / CRM Automation Specialist

We are looking for an experienced CRM developer to help design, build, and optimize our customer relationship management system. The ideal candidate should have experience with CRM platforms, workflow automation, API integrations, and customer lifecycle management. Responsibilities: * Configure and customize CRM platforms (HubSpot, Salesforce, Zoho, Microsoft Dynamics, or similar). * Build and optimize sales, marketing, and customer support workflows. * Create custom fields, pipelines, dashboards, and reports. * Integrate the CRM with third-party applications via APIs, webhooks, or automation tools (Zapier, Make, etc.). * Automate lead capture, nurturing, and follow-up processes. * Import, clean, and manage customer data. * Troubleshoot CRM issues and recommend best practices for improving efficiency. Required Skills: * Proven experience with one or more major CRM platforms. * Strong understanding of CRM architecture and business processes. * Experience with REST APIs and system integrations. * Knowledge of workflow automation tools. * Excellent communication skills. * Ability to work independently and deliver high-quality solutions. Qualifications: * Experience with custom CRM development. * Familiarity with SQL, JavaScript, or Python. * Experience integrating CRMs with websites, payment gateways, email marketing platforms, and ERP systems. Please include: * Examples of CRM projects you've completed. * Which CRM platforms you specialize in. * Relevant automation or integration experience. * Your estimated timeline and fixed-price quote. * Your hourly rate for future work. We are looking for a reliable CRM specialist who can recommend best practices, deliver clean solutions, and become a long-term technical partner for future CRM enhancements.

opportunity

Automatic video lighting and sound adjustment

Seeking an AI developer to build an automated system that enhances lighting and audio for short, three-minute monologue videos. The solution should accept simple uploads, analyse footage, and apply a set of intuitive presets to optimize exposure, color balance, noise reduction, and EQ. Deliverables include a user-friendly interface, reliable processing pipeline, configurable presets, and performant output suitable for quick post-production. Experience with video/audio ML, real-time processing, and cross-platform compatibility preferred. This should be more than simple colour adjustemnts that are native to mobile phone filters.

Edit my RISC V core

Seeking an experienced engineer to modify a RISC-V core for integration into my electronic system. Tasks include correcting current implementation issues, optimizing pipeline and control logic, implementing requested ISA extensions, and ensuring timing closure for target FPGA/ASIC. Deliverables: updated RTL with clear, annotated changes, simulation testbenches, synthesis constraints, and documentation of modifications and verification results. Candidates must demonstrate prior RISC-V core experience, provide estimates for timeline and cost, and ensure deliverables are production-ready.

opportunity

Content Automation Dashboard for Existing Algorithm (BIG AL)

I'm looking for an experienced full-stack developer to build Stage 2 of my platform. I already have a working algorithm called Big AL that selects products for TikTok Lives and tracks analytics such as popularity, demand, sales history, conversion rates and live scheduling. I'm not looking to rebuild the algorithm. Instead, I need a developer to build a Content Engine and Approval Dashboard that reads Big AL's data and automatically generates branded social media content. The system should: Connect to an existing algorithm (API/Database/JSON) Read product selections and analytics Populate reusable templates automatically Generate graphics and short animated content Display everything in an approval dashboard Allow simple editing before export Export ready-to-use assets for TikTok, Instagram and my website This is intended to be the foundation of a larger content automation platform, so I'm looking for someone who enjoys designing scalable systems. A full project specification (PDF) is attached. Please include in your proposal: Similar projects you've completed Technologies you'd recommend Estimated timeline Estimated cost Suggestions for improving the architecture Long-term work is available for the right developer. "The existing algorithm developer is available for technical collaboration where required, so this project will involve integrating with an existing system rather than starting from scratch." - full design spec will be given to the right candidate. "How many hours do you think it would take to expose Big AL's data through an API or JSON feed so another application can consume it?" Please give a brief of your understanding, experience and how you would build it? If your interested please read the PDF and designs ideas.

Developer to test & harden a local-first automation CLI (paid)

We're looking for a developer (ideally a few) to help test and improve RailCall, a local-first, developer-grade automation tool. This is real paid work, broken into small fixed-price tasks. Start with one; if it's a good fit, there's a steady stream of more. About the tool (so you can scope your proposal accurately): RailCall runs on your own machine. You describe an automation in plain English and it builds a real, governed workflow that runs locally - not in a vendor cloud. Nothing executes until you approve it (dry-run by default), and every run is sealed with a signed receipt you can verify offline. Keys, data and logs stay on your machine. There's a free tier (500 flows/month, no card) so you can install and start straight away. - Site: https://railcall.ai - Docs: https://railcall.ai/docs.html - Install (macOS/Linux): curl -fsSL https://railcall.ai/install.sh | bash - then run: railcall studio The tasks we're paying for (fixed price, per accepted deliverable): 1. A reproducible bug report or actionable feedback - approx £8 each. Accepted when we can reproduce the issue from your write-up (clear steps, expected vs actual, environment) or directly act on the feedback. 2. A shipped fix, or a genuinely useful workflow you've built - approx £20 each. Accepted when the fix is verified working, or the workflow runs and you supply its signed receipt (via "railcall verify"). 3. A standout build, a written how-to guide, or a short demo video - approx £40 each. Accepted when it's clear, accurate, and something we'd be happy to share with other developers. Every milestone is agreed, awarded and paid through PeoplePerHour. These are paid tasks - not spec work, not a free contest. What we're after: - Comfortable on the command line, with git, and installing a CLI on macOS or Linux - Can write a clear, reproducible report (steps, expected vs actual, environment) - Bonus: experience with MCP, agent tooling, or workflow automation How to propose: Send a proposal here on PeoplePerHour. Tell us which task you'd like to start with, a rough delivery timeline, and anything relevant you've built before. We agree the milestone, award it, and release payment on delivery through PPH. Reliable contributors will be first in line for more of the same work - this is ongoing, and the longer-term arrangement is still taking shape, so no promises beyond the paid tasks named above.