Software Developer

Software Developer focuses on build kotlin backend services for a new payments platform.

What the role involves

• Build Kotlin backend services for a new payments platform.
• Design of key components, taking high-level requirements and turning them into structured, deliverable backlogs.
• Write clean, well-tested, production-ready code that the team can rely on.
• Work closely with Product and Engineering to break down complex problems and ship impactful features.
• Bring fresh thinking to existing approaches and propose improvements where you see them.
• Supporting team leadership across delivery, code quality, and technical decision-making.

Skills and requirements

• Strong commercial Kotlin experience for backend development, ideally within payments or financial services.
• Comfortable with React.js for full stack contribution where required.
• Senior Software Engineer level ownership of technical decisions and delivery.
• Clear grasp of software engineering fundamentals: design patterns, SOLID principles.

Confirmed role details

• Day rate: up to £650 per day.
• IR35: Outside IR35.
• 6 months initial term, extension likely.
• London, hybrid (3 days Onsite).

Candidate fit

• technical problem-solving, code quality, testing discipline, and clear collaboration

Known job details

• Pay: £550–£650 per day