Senior Full-Stack Developer – Modern Engineering & Agentic Coding

Implement Consulting Group; Gentofte Kommune; On-site; DKK 700,000 - 900,000; Full time

Benefits offered by this job

Real autonomy in projects

Growth opportunities through mentoring

Community events and strategy trips

Competitive compensation package

Job summary

Implement Consulting Group in Denmark is looking for a Senior Full-Stack Developer. You will own features from start to finish, utilizing your software engineering skills across modern practices such as automation and open-source principles.

The role demands strong technical acumen and the ability to work across both frontend and backend technologies. You will mentor junior developers and contribute to architecture decisions while enjoying significant autonomy and growth opportunities within a collaborative environment.

Qualifications

• 5+ years of professional experience in full-stack software development.
• Strong English communication skills.
• Solid experience in building modern software systems in production.

Responsibilities

• Build, test, and deliver software using modern engineering practices.
• Collaborate and lead technical workstreams with clients.

Skills

Full-stack software development

Modern engineering practices

Strong communication skills

Mentoring and code reviews

Education

M.Sc. in computer science or related field

Job description

Senior Full-Stack Developer – Modern Engineering & Agentic Coding

Full-time position based within commuting distance of our office in Copenhagen.

What you’ll do

• Build, test, and deliver software using modern engineering practices such as everything-as-code, CI/CD, GitOps, automation, and open‑source principles.
• Work across frontend and backend technologies, contributing to architectural decisions, system design, containerised environments, and clear, maintainable documentation.
• Improve developer and user experience by shifting quality left, applying strong design principles, mentoring others, and delivering minimum viable products with a clear path to scale.
• Design, build, and operate platforms and infrastructure, including APIs, CLIs, platform engineering, immutable infrastructure, and internal developer platforms.
• Collaborate, teach, and lead through effective communication, technical writing, code reviews, lean principles, and strong data and security practices.
• Lead technical workstreams and collaborate closely with clients, translating business needs into pragmatic technical solutions.

Qualifications

• Relevant M.Sc. in computer science, software engineering, or a related field (mandatory).
• Minimum 5 years of professional experience in full-stack software development or similar engineering roles.
• Strong communication skills in both written and spoken English.
• Alignment with values around software quality and delivery.
• Tool-agnostic, choosing the right tool for the job.
• Comfortable with complexity and able to break problems into manageable pieces.
• Solid experience building and operating modern software systems in production.
• Understanding of software architecture, system design, testing, security, and maintainability.
• Ability to guide technical decisions, challenge assumptions, and communicate trade-offs clearly.
• Experience mentoring or supporting other developers through code reviews, pairing, or technical sparring.
• Do not need to meet all criteria; a strong engineering foundation, senior mindset, and genuine appetite for learning and growth are the most important factors.

What we offer

• Real autonomy: own features end-to-end and lean into the technology you care most about.
• Growth opportunities: learning programme, mentoring, and ample peer knowledge sharing.
• Community and craft: strategy trips, meetups, and events across The Tech Collective and Implement Consulting Group.
• A competitive compensation package with strong development opportunities.