Blockchain & Backend Developer – Cofounder | Play-To-Earn GamingSuportr League • London, England, United Kingdom
Blockchain & Backend Developer – Cofounder | Play-To-Earn Gaming
Suportr League
- London, England, United Kingdom
- London, England, United Kingdom
About
Blockchain & Backend Developer – Cofounder | Play-To-Earn Gaming Company:
Suportr League Location:
Remote Part-time:
15-20 hours per week No Salary - Equity Only Suportr League is a high-growth, early-stage startup redefining fan engagement through a play-to-earn gaming platform tailored for sports fans. Our platform merges high-performance gaming systems with blockchain-backed digital assets, tokenised rewards, and secure wallet infrastructure—offering users real-world value for their digital loyalty and skill. We are building out the Suportr League Blockchain and platform backend and are seeking a
Blockchain & Backend Developer
as a
technical cofounder . Note:
This is a cofounder role. While it does not come with an upfront salary, it includes a meaningful equity stake and a future salary package tied to successful fundraising. Role Overview
As our Blockchain & Backend Developer, you will design and deliver both the decentralised and centralised layers of our gaming infrastructure. You’ll collaborate with the founding team across smart contract development, wallet and token integration, data layer architecture, API services, and platform scalability. Key Responsibilities
Blockchain & Smart Contracts Design and build the Suportr League bespoke blockchain (e.g., Substrate, Cosmos SDK). Develop, test, and deploy smart contracts for fungible tokens (ERC-20 equivalent) and non-fungible tokens (ERC-721/1155 equivalent). Build and secure user-facing wallets and key management infrastructure for token and NFT interactions. Develop cross-chain bridges with major chains (e.g., Ethereum, BSC). Architect and implement robust backend systems in Golang, including RESTful and WebSocket APIs to support game logic, player stats, token transactions, and rewards logic. Manage server infrastructure, databases, and caching systems for optimal performance (PostgreSQL, Redis, MongoDB, etc.). Integrate blockchain operations seamlessly with centralised services like matchmaking, leaderboards, and reward redemption. Security & Performance Ensure platform security across smart contracts, APIs, and backend services. Implement logging, monitoring, and disaster recovery protocols. Conduct regular code reviews, audits, and performance optimisations. Work with frontend/game developers and product leads to deliver integrated features. Contribute to strategic technical decision-making and long-term roadmap planning. Stay current with evolving Web3, gaming, and backend technologies. Requirements
Bachelor's degree in Computer Science or related field (or demonstrable experience). Proficient in Solidity and/or Vyper for smart contracts. Experience with one or more blockchain frameworks (Substrate, Cosmos SDK, Hyperledger). Proficient in backend languages such as
Node.js ,
TypeScript ,
Go , or
Python . Familiar with relational and non-relational databases (e.g. PostgreSQL, MongoDB). Familiarity with Web3.js, Ethers.js, or similar blockchain libraries. Comfortable deploying and managing services in
AWS ,
GCP , or other cloud environments. Strong grasp of encryption, wallet key management, and secure authentication methods. Collaborative mindset with a bias for action in a lean startup environment. Passion for gaming and the evolving play-to-earn economy. Nice to Have
Experience integrating blockchain with
React ,
React Native , or
Unity
frontends. Prior contributions to gaming or gamified platforms. Familiarity with DeFi protocols or tokenomics. Understanding of Firebase, real-time multiplayer servers, or serverless architectures. What We Offer
Cofounder Equity
in a high-potential early-stage startup Competitive salary post-funding (with milestone-based increases) Remote-first, flexible working environment Influence over product roadmap and technical architecture Access to a passionate, purpose-driven founding team and community The chance to reshape the future of sports fandom through decentralised game innovation How to Apply
To join us as we revolutionise sports gaming and fandom: → Send your CV and a brief message about your motivation and relevant experience to
hr@suportr.com We’re especially keen to speak to candidates excited by the opportunity to shape both product and culture from the ground up.
#J-18808-Ljbffr
Languages
- English
Notice for Users
This job comes from a TieTalent partner platform. Click "Apply Now" to submit your application directly on their site.