Senior Software Engineer

Finalto Group; København; On-site; DKK 900,000 - 1,300,000; Full time

Job summary

Finalto Group in Copenhagen is seeking a Senior Software Engineer for the Integrations Team. You will own integration work and develop services connecting ClearVision with clients, Tier 1 banks, liquidity providers, and trading venues.

You will participate in the full SDLC from analysis to production support. A learning period accompanies proprietary frameworks; strong problem-solving and independent ownership are valued.

Qualifications

• Degree in computer science or software engineering or equivalent experience.
• 5+ years of professional software development experience, including production software in C#/.NET or a comparable OO language.
• Experience with concurrent, event-driven, or distributed systems.
• Experience with automated testing and tools such as Git, Visual Studio, MSBuild, and NUnit.
• Ability to structure ambiguous work, make sound trade-offs, and design maintainable components.
• Experience owning third-party integrations and managing external technical stakeholders.

Responsibilities

• Participate in the full SDLC from analysis and design through implementation, testing, release, and production support.
• Own integration work and help develop and maintain services connecting ClearVision with clients, Tier 1 banks, liquidity providers, and trading venues.
• Work with third parties to clarify behaviour, coordinate testing and investigation, and drive joint issues to resolution.

Skills

Distributed systems

Object-oriented design

Problem solving

Education

Degree in computer science or software engineering

Tools

Git

Visual Studio

MSBuild

NUnit

Job description

The Company

Finalto is a global provider in the over-the-counter trading space, offering brokerages and institutional clients our cutting-edge trading platform—ClearVision. With liquidity from Tier 1 banks, ClearVision ensures superior pricing and execution quality. Our R&D hub in Copenhagen drives continuous innovation and top-tier application performance.

The Job

As a Senior Software Engineer in the Integrations Team, you will participate in the full SDLC from analysis and design through implementation, testing, release, and production support. You will independently own integration work and help develop and maintain services connecting ClearVision with clients, Tier 1 banks, liquidity providers, and trading venues. You will work directly with third parties to clarify behaviour, coordinate testing and investigation, and drive joint issues to resolution.

ClearVision is built on proprietary frameworks and established engineering patterns. We do not expect you to know them before joining; every engineer goes through a learning period. What matters is your ability to understand unfamiliar systems, structure ambiguous work, design robust components, and make sound decisions. This is a senior individual-contributor role, not a Technical Lead or domain-lead position. Deliverables must meet high standards of correctness, latency, performance, and reliability.

Qualifications

• Degree in computer science or software engineering, or equivalent experience
• 5+ years of professional software development experience, including:
  • oproduction software in C#/.NET or a comparable object-oriented language
  • oconcurrent, event-driven, or distributed systems
  • oautomated testing and tools such as Git, Visual Studio, MSBuild, and NUnit
• Ability to structure ambiguous work, make sound trade-offs, and design maintainable components.
• Experience owning third-party integrations and managing external technical stakeholders through joint problem solving.
• FIX or electronic-trading experience is a plus, not a requirement.
• Strong knowledge of OOP, SOLID, data structures, algorithms, network protocols, testing, observability, and production reliability.

Who You Are

You are analytical, structured, and comfortable taking independent ownership without being the formal lead. You communicate clearly, engage internal and external stakeholders in shared problem solving, and keep work moving across organisational boundaries. You care about clean, maintainable code, production reliability, and pragmatic engineering decisions.

The Workplace

You will be working in our office at Amerikakaj, Copenhagen. Onsite work is mandatory for a minimum of 60% to secure cooperation and coherence within the team.

For inquiries, contact our HR Business Partner, Sophie Lykke, [e-mail].

To learn more about Finalto, visit www.finalto.com.