C# Developer / Technical Lead

Overview

As a C# Developer / Technical Lead, you will steer a squad in architecture, delivery, and production operations while remaining hands-on in coding. You’ll own system design, API decisions, and code quality, collaborating with Product Managers on roadmaps. You’ll mentor engineers, drive continuous improvement, and champion AI-assisted development tools across the lifecycle. This role combines technical ownership with leadership to grow the team and deliver a modern payments platform.

Pay / Benefits

• salary up to 95k
• bonus
• 23 days holiday, rising to 28 + birthday off
• pension
• Life Assurance
• Income Protection (disability) , Critical Illness Cover (unknown exact phrasing)

Responsibilities

• Lead the squad across architecture, development, delivery and production operations while coding hands-on.
• Own system architecture, API design, and key technical decisions; conduct design reviews and ensure code quality.
• Partner with Product Managers on roadmaps, delivery plans and priorities.
• Mentor engineers through 1-2-1s, feedback, and continuous improvement; set engineering standards.
• Drive adoption of AI and agentic coding tools across the SDLC; implement modern techniques and process improvements.
• Lead from the front with technical ownership and responsibility for team growth and delivery.

Key requirements

• Strong backend development skills with C# .Net (or other OO languages)
• Strong system design experience, especially for distributed systems and microservices
• Frontend experience with Vue.js, React or modern Angular
• Good knowledge of SQL and relational databases
• Production AWS experience (SQS, DynamoDB, S3, ECS, Lambda)
• Experience owning CI/CD and release processes (GitHub Actions)
• Hands-on experience with Claude Code, Cursor, Copilot or similar AI tools
• Collaborative and pragmatic communication; ability to explain technical decisions to engineers and business stakeholders
• Payments, FX or regulated industry background advantageous

• Collaborative
• Pragmatic
• Strong communication
• C# .Net backend
• Distributed systems
• Microservices

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