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.