Senior Full Stack Engineer — Fintech & Crypto Platform (Hybrid)

Certus Recruitment Australia; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

Certus Recruitment Australia is partnering with a UK fintech to hire a Senior Full Stack Software Engineer focused on cryptocurrency. The role is London-based with hybrid work (2 days per week) and involves building the platform's software, financial infrastructure and settlement tech under the Head of Engineering.

You will work on back-end services, APIs, and blockchain integrations, turning design documentation into production-grade software with a strong emphasis on reliability and scale.

Qualifications

• 5+ years of professional software engineering experience.
• Strong back-end engineering experience.
• Experience taking systems from prototype to production.
• Strong TypeScript and PostgreSQL/SQL skills.
• Rust experience is highly desirable, or a strong systems background with the ability to learn quickly.
• Experience with event-driven and transactional systems.
• Strong written communication and a design-led approach.
• Collaborative, hands-on and comfortable taking ownership.

Responsibilities

• Back-end services and transaction workflows.
• Financial transaction and settlement systems.
• Compliance and authorisation logic.
• Database design and transactional integrity.
• APIs, event-driven architecture and shared schemas.
• Customer-facing and internal applications.
• Blockchain and on-chain settlement integration.

Skills

TypeScript

PostgreSQL

Backend

Rust

Event-driven

APIs

Typed languages

Design-led

Communication

Job description

Certus Recruitment Australia is partnering with a UK fintech to hire a Senior Full Stack Software Engineer focused on cryptocurrency. The role is London-based with hybrid work (2 days per week) and involves building the platform's software, financial infrastructure and settlement tech under the Head of Engineering.

You will work on back-end services, APIs, and blockchain integrations, turning design documentation into production-grade software with a strong emphasis on reliability and scale.