Tech Lead! 50% Lead Developer. 50% Software Architect. 100% technical leadership.

Are you the engineer people turn to when the code is difficult, the architecture matters and the team needs a technical direction? Cubris is strengthening its engineering organisation around GreenSpeed® as part of our ambition to build a high-performing technology competence centre for intelligent railway solutions within Hitachi Rail. We are looking for a Tech Lead who combines deep hands-on software engineering with architectural judgement. This is deliberately not a traditional management role. You will spend approximately 50% of your time as a Lead Developer and 50% as a Software Architect – building production software, solving difficult engineering problems and coaching developers while also representing your team in the Architecture Group and translating architectural direction into practical solutions. Your role as Lead Developer You will: Write and ship production code

Take ownership of technically complex stories

Unblock other engineers when problems become difficult

Coach developers through pairing, design discussions and high-quality PR reviews

Raise standards for automated testing and CI/CD

Improve pipeline reliability and engineering effectiveness

Strengthen observability through logs, metrics and traces

Drive systematic reduction of technical debt

Establish useful patterns, runbooks and reference implementations

In other words: you are expected to remain technically credible because you are still doing the work. Your role as Software Architect At the same time, you will: Represent your team in Cubris’ Architecture Group

Translate architectural decisions and ADRs into practical team standards

Define service boundaries, APIs, events and data contracts

Establish and verify non-functional requirements around security, reliability, performance and cost

Lead technical migrations and integrations

Manage architectural dependencies and compatibility

Maintain architectural documentation, roadmaps and decision records

You become the technical bridge between Product, Engineering and Architecture . What you bring We expect you to have: 7+ years of software engineering experience

Experience leading technical initiatives or engineering teams

Strong C#/.NET expertise

Experience designing distributed systems and/or microservices

Good SQL/NoSQL fundamentals

Experience with APIs, domain modelling and event-driven architectures

Strong understanding of CI/CD and modern software delivery

Experience with cloud technologies, containers and orchestration

An engineering mindset around reliability, observability, security and performance

The ability to mentor developers and communicate technical decisions clearly

The current environment includes C#/.NET, .NET Core, Entity Framework, MS SQL Server, Azure DevOps, Git, CI/CD and Visual Studio , with Azure, Kubernetes and Infrastructure-as-Code increasingly relevant. Why Cubris? Because you will have unusually visible technical influence. You will not simply inherit somebody else's engineering system. You will help define how Cubris builds software: the architecture, engineering practices, quality standards and technical guardrails that enable the organisation to scale. And the software has a tangible purpose: helping make modern railway operations smarter, more predictable and more energy-efficient. Location: Ballerup, Denmark Department: Software Production Reports to: Development Manager Interested? Reach out for an informal and confidential conversation. Please note that work permit needs to be in place before applying and that there is no relocation package included. You must be able to commute to the office in Ballerup every work day.