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Senior front-end blockchain developer

London
Supportwave Ltd
Developer
€90,000 a year
Posted: 9h ago
Offer description

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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