Software Engineer

Koda Tech; Greater London; On-site; GBP 60,000 - 95,000; Full time

Job summary

Koda Tech in London is expanding its engineering team to design, develop and maintain integrations between a proprietary real-time platform and external market participants, tackling latency-sensitive connectivity.

You will build scalable services, improve existing APIs, and contribute to the evolution of a mature trading-focused platform, working with distributed systems and cross-region colleagues to deliver reliable, high-performance software.

Qualifications

• 3+ years of commercial software engineering experience.
• Strong experience with C# and .NET.
• Good understanding of object-oriented design principles.
• Experience building APIs and integrations.
• Experience working with distributed or event-driven systems.
• Strong problem-solving skills.
• Ability to communicate technical concepts clearly.
• Comfortable working across the full software development lifecycle.

Responsibilities

• Design, develop and maintain integrations between a proprietary real-time platform and external market participants.
• Build scalable services and improve existing connectivity solutions.
• Contribute to the evolution of a mature engineering platform used within performance-sensitive environments.

Skills

3+ years experience

C# / .NET

Distributed systems

APIs / Integrations

Communication

Full SDLC

Tools

Azure

AWS

Job description

We're partnering with a global financial technology business that is expanding its engineering team in London.

This role sits at the intersection of software engineering, real-time systems and financial markets, working closely with specialists responsible for market connectivity and liquidity management.

The company has an established international engineering function and is building additional technical capability in London. You'll work alongside experienced engineers in a highly collaborative environment where technical excellence, ownership and continuous learning are valued.

The Role

You'll be responsible for designing, developing and maintaining integrations between a proprietary real-time platform and external market participants.

The work involves building scalable services, improving existing connectivity solutions and contributing to the evolution of a mature engineering platform used within performance-sensitive environments.

You'll be exposed to:

• Distributed systems
• Event-driven architectures
• Performance-focused software engineering
• External systems integration
• Financial technology platforms

This is a growth opportunity for an engineer who enjoys solving complex problems and wants to deepen their expertise in a highly technical environment.

What They're Looking For

• 3+ years of commercial software engineering experience
• Strong experience with C# and .NET
• Good understanding of object-oriented design principles
• Experience building APIs and integrations
• Experience working with distributed or event-driven systems
• Strong problem-solving skills
• Ability to communicate technical concepts clearly
• Comfortable working across the full software development lifecycle

Nice To Have

• Multithreading and concurrency
• Performance optimisation
• Financial services, trading, payments, gaming or other high-throughput environments
• Cloud platforms (Azure or AWS)

What Will Help You Succeed

The team places a strong emphasis on software engineering fundamentals. Successful engineers can confidently discuss:

• Algorithms and data structures
• Complexity analysis
• Testing and maintainable code design
• System architecture and design decisions

Why Join?

• Work on complex, business-critical software
• Join a highly regarded engineering team
• Exposure to financial markets and trading technology
• Genuine ownership of technical solutions
• International collaboration with engineering teams across multiple regions
• Clear opportunity for technical growth and career progression
• If you're a software engineer who enjoys building reliable systems, solving challenging integration problems and working with smart, collaborative colleagues, we'd love to hear from you.