Android Development Projects

opportunity

Frontend Developer for DeFi Platform

I’m looking for an experienced frontend developer to help improve UI/UX for a DeFi staking platform built on Binance Smart Chain (BSC). The platform allows users to stake the CENX token and earn BUSD rewards while also being able to trade tokens directly via PancakeSwap integration. The current dashboard needs to improve usability, clarity, and responsiveness, as well as real-time data updates. Additionally, the implementation of these improvements into the existing React app is required.

Flutter or React Native Full Stack Developer

Job Type: Remote · Hourly-Based About Us Hedgehog is an innovative startup that partners with leading companies in the US to build smart, scalable, and modern technology solutions. We develop social media and license social media engagement products, focusing on high-impact solutions with clean design, intuitive user experiences, and advanced engineering. Job Objective We are looking for a skilled and motivated developer to help us prototype and build an MVP for a consumer social connection app. This role involves creating both the mobile applications (iOS and Android) and the backend needed to support the app. This is an early-stage product, so we need someone who is comfortable working in a fast-moving startup environment and who can turn ideas into a working product quickly. Responsibilities Build a cross-platform mobile app for iOS and Android, preferably using Flutter Design and implement the backend/server (authentication, profiles, matching logic, messaging, etc.) Connect the mobile app to the backend via APIs Help define the technical architecture of the MVP Rapidly prototype and iterate on features Use AI tools (such as Claude Code AI) to speed up development and improve productivity Required Skills Experience building mobile apps for iOS and Android Strong knowledge of Flutter (or similar cross-platform framework) Experience building backend services (Node.js, Firebase, Supabase, or similar) API design and database experience Ability to work independently and take ownership of a product Comfortable working in a startup / MVP environment Nice to Have Experience building dating apps, social apps, or chat apps Experience with real-time features (messaging, notifications) Familiarity with AI-assisted coding tools (Claude, GitHub Copilot, etc.) What We Offer Fully remote work Flexible hours Paid hourly Competitive hourly rate Opportunity to help shape a real product from the ground up How to Apply Please send: A short introduction Your experience with Flutter, iOS/Android, and backend Links to any apps, GitHub, or portfolio Your hourly rate Availability

Seeking a React/Web3 developer

We are looking for a skilled React Developer to help build and scale a modern Real Estate platform. You will work closely with designers, backend developers, and product managers to deliver a fast, user-friendly experience for property listings, searches, and transactions.

Business Development Manager

About the Role We are seeking a results-driven Business Development Manager to identify new business opportunities, build strong client relationships, and drive sustainable revenue growth. The ideal candidate is strategic, commercially minded, and confident in negotiating and closing deals. Key Responsibilities Identify, develop, and execute new business opportunities and partnerships Build and maintain long-term relationships with clients and stakeholders Conduct market research to identify trends, competitors, and growth areas Prepare and deliver compelling sales presentations and proposals Negotiate contracts and close deals to meet or exceed revenue targets Collaborate with marketing, sales, and leadership teams to align strategies Track performance metrics and provide regular reports to management Requirements Proven experience as a Business Development Manager or similar role Strong understanding of sales strategies and market dynamics Excellent communication, negotiation, and presentation skills Ability to build relationships with clients at all levels Strategic thinker with a results-oriented mindset Proficiency in CRM tools and Microsoft Office Bachelor’s degree in Business, Marketing, or a related field (preferred) What We Offer Competitive salary with performance-based incentives Opportunities for career growth and professional development Collaborative and dynamic work environment How to Apply If you are passionate about driving growth and building successful partnerships, we would love to hear from you. Please submit your CV and a brief cover letter outlining your experience. We are an equal opportunity employer and value diversity in our workplace.

opportunity

Senior React Native Developer (Mobile & Web)

Responsibilities Build and maintain high-performance React Native apps (Android-focused, some iOS). Design scalable mobile architecture and reusable components. Bridge React Native with native Android (Kotlin/Java) and iOS (Swift/Obj-C) code. Contribute to our React web app using React and Tailwind CSS. Collaborate with designers, product managers, and backend engineers. Ensure code quality, performance, testing, and CI/CD automation. Mentor developers and help define mobile best practices. Requirements 7+ years mobile development experience (5+ years React Native). Strong React Native internals and native module bridging experience. Solid Android expertise and working knowledge of iOS. Experience with React (web), Tailwind CSS, and modern front-end tooling. Familiarity with Redux Toolkit or MobX, REST APIs, and mobile performance optimization. Experience with CI/CD (Fastlane, GitHub Actions, Bitrise, or EAS). Strong Git skills, communication, and ownership mindset. Bonus E2E testing (Detox, Appium) and unit testing (Jest, Vitest). App Store / Play Store submissions. Expo, EAS, OTA updates, analytics, or SDK integrations.

opportunity

Game Developer for a 3D Roulette Game

We are looking for a Game Developer to create a photorealistic 3D roulette game for web and mobile platforms. The task is to assemble the project and implement the entire client-side game logic. It is important to achieve realistic graphics and smooth performance while choosing a technology stack that does not overload the game in terms of performance. What needs to be done: • Develop the client-side of the 3D roulette game • Implement the game logic • Select an appropriate technology stack for web and mobile • Connect the game to the backend via API (endpoints will be provided at the start of the project) What we expect: • Experience in developing 3D games for web and mobile devices • Understanding of graphics optimization • Skills in working with realistic 3D graphics • Willingness to review the technical specification and present relevant projects Conditions: • Deadline: 14 days • Start after reviewing the technical specification • Portfolio with game or 3D projects is required With successful implementation of the first project, long-term cooperation is planned — launching a series of similar 3D games, including blackjack and poker.

opportunity

Full-Stack Developer (Browser-Based Strategy MMO)

I’m looking for an experienced full stack developer to build a playable MVP of a browser based, persistent strategy MMO (in the lineage of OGame / Ikariam / Tribal Wars). This is not a UI heavy project. This is a systems driven game where time, math, and determinism are the core architecture. The Game (High Level) - Persistent, browser-based strategy MMO - Space themed (sectors, zones, colonies, fleets) - Text first, functional UI (HTML/React reference provided) - Server authoritative time and state - Deterministic mechanics (no RNG once inputs are known) Players: - Manage colonies - Produce resources continuously - Build infrastructure and fleets - Launch fleets across a mapped universe - Resolve combat deterministically - Colonise new colonies once strict conditions are met MVP Scope (Non-Negotiable) - The MVP must be playable, not mocked. - Core systems required in MVP - Account creation + authentication - One starter colony per player - Continuous resource production (server side) - Building upgrades with real timers - Fleet construction - Fleet travel using deterministic distance / speed math - Deterministic combat resolution - Colonisation mechanics with gating & failure states - Anti grief hard locks (starter colony protection, last-colony protection) - Server authoritative queues and timestamps - Explicit exclusions (acceptable for MVP) - Sterilisation cycle (can be Phase 2) - Factions, espionage, diplomacy - Visual map rendering (text/list view is fine) Technical Requirements - You must be comfortable owning backend logic, not just wiring endpoints. Backend - Node.js (TypeScript preferred) - Always-on compute (VPS / container service) - No sleeping services for core logic - Deterministic time handling - Clear separation between API and worker/queue logic Database - Relational DB strongly preferred (PostgreSQL ideal) Clean schema design for: - players - - colonies - - buildings - - fleets - - queues - - combat results - - Backups considered from day one Timers / Queues - Cron + workers OR Redis-backed queue - All timers must survive restarts - Client is never the authority on time Frontend - Text first UI - React or vanilla HTML/CSS/JS - Functional over pretty - UI reference HTML will be provided What This Is NOT - Not a no-code / low-code project - Not a Web3 / NFT / blockchain game - Not a “let’s prototype and see” experiment - Not a serverless only backend - Not a UI design brief If you rely on: - sleeping free tiers - client side timers - RNG to simplify mechanics - “we’ll fix it later” This is not the right project. Budget & Commercial Terms (Read Carefully) - Fixed budget for Phase 1 MVP: £500 - This is intentional and non negotiable - Codebase ownership remains with me - Revenue share from the game is available if you continue post launch - Long term collaboration possible beyond MVP (studio work). - This project requires engineering judgement, not just effort. Timeline - Target: Playable MVP live by early April/May - Expected build window: ~4–6 weeks - Milestone based delivery preferred What I Need From You (Application Requirements) - To apply, do not send a generic proposal. - Please include: A brief explanation of how you would implement a deterministic, server-authoritative timer system One example of a persistent game / long-running system you’ve built (game or non-game) Your view on what you would deliberately simplify to protect MVP delivery Confirmation that you are comfortable working within: - The budget - The scope - The architectural constraints Bonus (not required): - Experience with browser strategy games - Experience designing systems where “math = gameplay” Selection Criteria I am optimising for: - Clear thinking - Technical ownership - Honest trade offs

Senior Full-Stack Developer

We are seeking a highly skilled Senior Full-Stack Developer with extensive expertise in both frontend and backend development. The ideal candidate should have a proven track record of enhancing and updating backend infrastructure. Applicants are required to submit a video via Loom demonstrating their relevant experience in this area. Additionally, please provide a concise summary detailing your approach to updating backend infrastructure. This project offers an opportunity to contribute significantly to our development team, working on innovative solutions and optimizing system performance.

Full Stack Development & Management Needed

Project Overview We are a US-based software team with 7+ years of production experience, scaling globally and hiring engineers across multiple regions. We are looking for a Technical Interview Manager who can design, conduct, and evaluate technical interviews to ensure we hire high-quality, real-world engineers, not just good test-takers. This is a long-term collaboration, not a one-off task. Key Responsibilities: - Lead technical interviews for backend, frontend, and full-stack roles - Evaluate real engineering ability: system design, code quality, debugging, architecture thinking - Design interview processes (live coding, take-home review, architecture discussion) - Provide clear hiring recommendations with structured feedback - Mentor junior interviewers and help standardize interview quality Required Experience: - 5+ years of hands-on full-stack software development - Strong proficiency in Python, JavaScript, C#, or Java - Production experience with FastAPI, Flask, Django, or .NET Core - 3+ years working in teams, mentoring or leading developers - Excellent technical communication in English

opportunity

Developer needed for privacy-focused CV prototype

Need a computer vision developer (Python, OpenCV, MediaPipe, or similar) • Build a lightweight real-time vision pipeline • Detect faces from a webcam or phone camera • Detect a visible marker (printed symbol or pattern) in the scene • Apply conditional image filtering (blur/mask) when marker is present • Focus is on proof-of-feasibility, not a commercial product • No facial recognition, identity tracking, or databases involved • Concept is patent pending, full details shared after initial discussion

I need a experienced developer for a technical round for 20 min

Hi, I need a experienced developer in PHP/MySQL magento, prestashop, wordpress etc, to attend a online technical round with me, it will be via phone, some questions will be asked and you will help me in answering them. For those twenty minutes you will be part of my team and I will introduce you similarly. Regards, Raj

AI Agent development

I need healthcare AI agent.

Simple Android OBD-II Diagnostic App

I need an Android application that pairs with an ELM327 Bluetooth OBD-II adapter and performs a very limited set of diagnostic tasks. The goal is to give me a clean, lightweight tool rather than a full-blown scanner. Core behaviour • When the user taps “Connect”, the app must discover and bond with a standard ELM327 device and keep the link alive. • Once connected, it should read live PIDs for engine RPM and battery voltage/status and refresh them smoothly on screen. • A single button should read any stored trouble codes and, when pressed again, clear them. No additional graphs, logging or fuel-consumption features are required. Tech notes I am comfortable with you writing the project in either Kotlin or Java inside Android Studio; please use the standard Bluetooth APIs (or a lightweight library if it speeds development). PID queries can be hard-coded—no dynamic command builder is necessary. The interface can be minimal: two large numeric fields for RPM and battery, plus the read/clear button. Deliverables Full Android Studio project with well-commented source. One signed release APK I can load directly onto my phone. A short README explaining how to pair the adapter and which PIDs you used. Acceptance I will test by pairing the app with my own ELM327 dongle; connection must succeed within 10 seconds, RPM values should update at least twice per second, and clearing codes must return the standard success response. If this sounds straightforward to you, let me know your timeline and any questions you have.

opportunity

Modern Quizzy development

I’m leading Quizzy(StudyByte), an online learning platform that’s already up and running, and I’m now looking to level it up with modern, AI-driven features. I need a solid full-stack developer who knows what they’re doing—someone comfortable with the MERN stack, writing clean code, and taking ownership of real features like AI study tools, personalized learning, dashboards, and engagement systems. I’m easy to work with, but I’m strict about quality, timelines, and communication, so I’m looking for a developer who treats this like a serious product, not a quick gig. If you’re reliable, proactive, and enjoy building meaningful software, we’ll work well together.

Full Stack Developer for creating statistical analysis SaaS

I am looking for a Senior Full Stack Developer to develop a platform for statistical analysis and game history at betting houses, replicating the features of the Tipminer website. Exact reference: https://www.tipminer.com/en What needs to be done: Real-Time Monitoring (Core): Create a system (Scraper/Sniffer) capable of reading game results on our platform via WebSocket or API Reverse Engineering. The data must arrive on the dashboard with zero latency (as soon as the round ends). Anti-blocking system (circumvent Cloudflare/Protections) to ensure stability. Frontend (Dashboard): Responsive layout (Mobile and Desktop) similar to the reference. Candlestick history grid with conditional coloring (Blue, Purple, Pink). Statistical graphs of accuracy, patterns, and paying times. Backend & Database: Store complete round history. Automatic calculation of strategies (e.g., candlestick patterns, sequences, gale). Mandatory Technical Requirements: Backend: Node.js, Python, or Go. Frontend: React, Vue.js, or Next.js. Connection: Advanced experience with WebSockets (WSS) and network sniffing. Database: PostgreSQL or MongoDB. Deliverables: Complete source code (Frontend + Backend). Installation and configuration on the server (VPS). Basic documentation on how to add new “houses” in the future (if applicable). Attention Candidates: Do not send generic proposals. This project requires knowledge of intercepting WebSocket traffic from iGaming sites. If you already have experience with casino APIs or similar projects (Tipminer, Tiphunter), mention this at the top of your proposal. Mandatory questions for the proposal: Do you have experience capturing data via WebSocket (WSS) from protected websites? What stack/technology will you use to ensure minimal delay? Do you have a portfolio of projects related to iGaming or real-time dashboards? What stack/technology will you use to ensure minimal delay? Do you have a portfolio of projects related to iGaming or real-time dashboards?

WordPress / Elementor Developer – Multi-Clinic Websites

WordPress / Elementor Developer – Multi-Clinic Websites, Booking Integration & WooCommerce We operate a small group of clinic brands and are seeking a WordPress developer to support a phased website programme, starting with improvements to our existing site and progressing to new builds. Clinic brands: Danugur – skincare, aesthetics and wellbeing (existing website) MAEN – men’s skincare, aesthetics and wellbeing (new build) Dermatology Clinic (name TBC) – medical-led dermatology (information-only site initially) We are a startup business and will work in clearly defined phases, prioritising functionality, control and scalability over unnecessary complexity. Phase-Based Scope of Work Phase 1 – Improve Existing Danugur Website Review and improve danugur.co.uk UX, structure, mobile optimisation and performance improvements Prepare site architecture for multi-location clinics Ensure SEO-ready structure Phase 2 – New Website Builds Build MAEN website from scratch Build Dermatology information-only website (lead generation focused) Consistent framework across sites with distinct branding Mobile-first, clean and premium design Functional Requirements (All Sites) Ability to manage multiple clinic locations Calendar / availability integration (initially via: Treatwell or Fresha plugins / booking links) Backend visibility and basic reporting Lead generation forms and enquiry tracking Easy admin control (we want to manage content internally) Experience working with Treatwell and/or Fresha integrations is a strong plus. Hosting & Platform Hosting is already in place with Hostinger Sites should be built on our hosting, not migrated elsewhere WordPress + Elementor experience is essential Clean, maintainable builds (no bloated themes) Ecommerce (Important) Build a single shared online shop One WooCommerce backend that can: Connect to multiple clinic websites Use different branding / naming if required WooCommerce preferred for cost control and flexibility Product categories, payments and basic integrations required randing & Design Support Support with refining the Danugur London Group identity Create or refine a group logo that incorporates: Danugur MAEN Dermatology clinic Individual clinic brands should retain distinct identities within the group What We’re Looking For Strong WordPress + Elementor experience WooCommerce build experience Experience with multi-location or clinic websites Ability to work in phases with clear milestones Comfortable working with startups and controlled budgets Clear communication and transparent pricing Important Note This is a startup engagement delivered in stages. We are not looking for agency pricing, unnecessary rebuilds or platform migrations. Please include: Relevant website examples Experience with booking systems (Treatwell / Fresha if applicable) Your recommended phased approach and timeline

PDF / Digital Forms Developer (Site Survey Solution vs)

We are looking for an experienced PDF forms / digital forms developer to create a smart, scalable digital version of our existing Site Survey sheet (currently a single-page PDF). At present, surveys are printed and completed by hand. We want a professional digital solution that allows engineers and office staff to type directly into the form, add as many pages as required, and save everything as one final PDF file. The solution must work on both laptops and iPads (including on-site use), without requiring specialist software or complex setup. Some sites require 2 pages, while others require 20+ pages, so flexibility and automation are essential. ⸻ Key Requirements The solution must: • Be based on our existing site survey layout • Allow users to type information directly into the form • Work reliably on laptops and iPads • Support adding and removing pages dynamically • Save as one single PDF file, regardless of page count • Automatically update “Page X of Y” in the bottom-right corner • Automatically total data across all pages on the final page: • Last 4 columns to be auto-calculated • First 3 columns are numeric values • Final column contains SP or TP • The final page should display totals calculated from all previous pages • Be intuitive and easy to use for non-technical staff ⸻ Technical Expectations We are open to different technical approaches, but the solution must be fully usable on both laptop and iPad. Relevant experience may include: • Advanced fillable PDFs (including PDF JavaScript) • Cross-platform form solutions (desktop & tablet) • Automated calculations and page numbering • Digital inspection or survey forms Experience with construction, electrical, or compliance documentation is a strong advantage. ⸻ Deliverables • Fully functional multi-page digital site survey • Works on laptop and iPad • Auto page numbering and auto totals • Saved as one multi-page PDF file • Clear instructions for staff use

Need a developer to build a application

We currently have a fully functional web application integrated with the Meta Messaging API, where multiple Instagram accounts are connected in one dashboard. Through this system, we can view all Instagram inboxes in one place and reply to DMs directly, just like Instagram. Now, we are looking to build a mobile application (Android & iOS) that includes all existing features of the web application, with the same functionality, performance, and security. Core Requirements: Integration with Meta Messaging API Connect and manage multiple Instagram accounts Unified inbox showing all Instagram DMs Real-time chat and reply functionality Smooth UI/UX similar to Instagram DM experience Secure account authentication and data handling Scalable architecture for future features What We Need From You: Confirmation if you can develop this mobile application Suggested tech stack (frontend + backend) Estimated development cost Timeline for completion Ongoing maintenance and support options (if available) Please share your experience with Meta APIs and similar messaging platforms, along with a rough cost estimate.

opportunity

Backend developer

FRESHERS AND INTERNS DO NOT APPLY . MINIMUM 3 YEARS REQUIRED Are you a talented back-end developer with minimum 3 year experience who has an unbeatable can-do attitude? If your answer is yes, WE WANT YOU! We are looking for a motivated and creative back-end software developer with a minimum 1 year experience to join our team, to start as remote work, but with a possibility to relocate to any Nordic Country at a later stage if so wanted… Your reasons to join us: We are a company (companies) working in the Nordic market (Finland and Sweden). We are working with 4-5 different IT-products (Our own) and 1-2 client products. We are constantly growing and therefore always striving to make our software and service better and more efficient. We have a low-hierarchy work environment where we are allowed to laugh and joke and we really appreciate real talent and innovative way of thinking We are offering you a challenging position in which you will be having an important role in developing our software. In this position you get to be involved in variety of different projects where you get to use your own innovation We are using these following technologies: React, React Native (front-end) SQL Azure C#.net We offer you: A skilled team to work with A possibility to grow within the company Open and low hierarchy work environment An positive and free work environment from where ever you work Possibility to relocate with company support You can work remotely your profile: We hope you are somewhat familiar with at least some of the back-end technologies and more than anything that you have the right attitude with a can do-spirit. You take pride in building and running a secure, reliable and performant distributed services Please attach your CV in English. thank you! If you have any questions regarding the position don't hesitate to contact the same email! This position will be filled as soon as we find the right match!

opportunity

Unified Communication / VoIP Phone System Developer

Job Description: We are looking for a skilled Unified Communication / VoIP Phone System Developer to design, develop, and maintain advanced communication solutions. The ideal candidate has hands-on experience with VoIP technologies and is passionate about building reliable, scalable systems. Key Responsibilities: Design and develop Unified Communication and VoIP phone systems Configure, customize, and maintain VoIP platforms (e.g., SIP, PBX systems) Integrate voice, messaging, and collaboration solutions Troubleshoot system issues and ensure high availability and performance Collaborate with cross-functional teams to deliver custom solutions Requirements: Proven experience in VoIP / Unified Communication development Strong knowledge of SIP, RTP, PBX systems, and VoIP protocols Experience with Asterisk, FreePBX, 3CX, or similar platforms Understanding of networking, firewalls, and security best practices Strong problem-solving and communication skills Nice to Have: Cloud-based VoIP experience API integrations and automation Certifications in VoIP or networking What We Offer: Competitive salary Opportunity to work on modern communication technologies Collaborative and growth-focused environment