Blockchain Developer

Location: Dubai / London / Remote | Engagement: Full-time or project-based | Experience: 3+ years preferred | Reports to: Technology Lead / Founder Build secure, practical blockchain capabilities for Kognitiv Academy, including verifiable learning credentials, digital achievements and integrations that improve learner trust and portability. This is an engineering role, not a token-speculation mandate. What you will own Design, develop and maintain smart contracts, APIs and blockchain integrations where they provide genuine product value. Develop verifiable credentials, on-chain or cryptographically verifiable certificates and badge issuance workflows. Evaluate appropriate chains, standards and wallet experiences against cost, security, privacy and usability. Integrate blockchain services with the learner platform, identity and existing backend systems. Write tests, documentation, monitoring and deployment automation; manage secrets and key security correctly. Coordinate independent reviews or audits before any production smart-contract deployment. Work closely with product, engineering and regulatory advisers on data protection and user consent. Required experience and capabilities 3+ years in software engineering with demonstrable production blockchain/Web3 experience. Strong knowledge of Solidity/EVM or a comparably relevant blockchain stack, secure API design and backend engineering. Understanding of cryptographic signing, wallet interaction, transaction lifecycle and security risks. Practical Git, CI/CD, testing, observability and technical documentation skills. Ability to explain architecture choices in plain business language. Nice to have W3C Verifiable Credentials, Open Badges, decentralised identity and education credential systems. Experience with Ethereum-compatible L2s, indexers and cloud infrastructure. Prior work in education, gamification or SaaS. First 90 days Audit current credential and gamification requirements and propose a minimal, secure technical architecture. Deliver a sandbox proof of concept for a verifiable credential or achievement workflow. Publish an implementation roadmap with costs, dependencies, security review and rollout gates. Success measures Reliable and secure delivery against agreed milestones. Verification completion rate, integration reliability, test coverage and documented security findings. Low end-user friction and sustainable transaction/infrastructure cost. Application: Please share a CV/profile, a short note on relevant experience and examples of work or projects where appropriate. Originally posted on Himalayas