Senior Front-End Blockchain Developer

We are seeking two Senior Back-End Blockchain Developers to join a UK-based B2B trading platform leveraging blockchain technology. You will develop and maintain the platform's back-end, focusing on Solana / Rust for blockchain integration, platform security, business logic, and database management. This is a full-time, 12-month contract role with a preference for hybrid work in the UK. Job Details Job Title : Senior Back-End Blockchain Developer Number of Positions : 2 Location : London, UK Job Type : Contract Contract Start Date : 21 July 2025 Contract End Date : 21 July 2026 Contract Length : 12 months Work Schedule : Monday to Friday, 09 : 00-17 : 00 Work Arrangement : Hybrid (flexible office days : Monday to Friday) Candidate Remuneration : £7,500-£9,000 per month (£90,000-£108,000 per year) Remuneration Frequency : Monthly Country of Resource : United Kingdom Responsibilities Build and maintain back-end systems, including Solana / Rust programs for blockchain integration. Implement secure business logic, platform security, and database management. Collaborate with front-end and product teams to support fintech and blockchain functionality. Required Skills and Experience Solana : Minimum 4 years of experience Rust : Minimum 4 years of experience API Integration : Minimum 6 years of experience Blockchain : Minimum 6 years of experience Software Development : 10+ years of professional experience Platform Security and Databases : 7-10+ years of expertise Language : English (Advanced proficiency) Nice-to-Have Skills

Experience with DeFi Blockchain Proficiency in Node.js or Python Knowledge of secure API design or blockchain data indexing Additional Requirements Eligibility : Candidates must have the right to live and work in the UK. Work Arrangement : Preference for hybrid work in the UK, with flexibility for remote work.

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