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

ApplyMint; Ballerup; On-site; DKK 900,000 - 1,150,000; Full time

Job summary

Cubris in Denmark is seeking a Tech Lead who combines hands-on software engineering with architectural judgement. You will spend about 50% of your time as a Lead Developer and 50% as a Software Architect, building production software, solving difficult engineering problems and coaching others while representing your team in the Architecture Group.

You remain technically credible by doing the work and by defining service boundaries, APIs, events and data contracts.

Qualifications

• 7+ years of software engineering experience.
• Experience leading technical initiatives or engineering teams.
• Strong C#/.NET and distributed systems design.

Responsibilities

• Write and ship production code and own complex stories.
• Lead architectural decisions and ADRs within the team.
• Coach developers and improve CI/CD and testing practices.
• Define service boundaries and data contracts.

Skills

C#/.NET

Distributed systems

Microservices

CI/CD

Cloud technologies

Observability

Mentoring

Communication

Tools

Azure DevOps

Kubernetes

Entity Framework

MS SQL Server

Azure

Job description

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.

Interested?

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.

Location: Ballerup, Denmark
Department: Software Production
Reports to: Development Manager