Senior Software Developer

Senior Software Developer

NN Planner Team

Enterprise Platforms

Denmark, Ballerup

Are you the engineer who still loves to code? Join us at a defining moment for NN Planner – Novo Nordisk's strategic global workforce planning platform – where your technical decisions will directly shape how thousands of colleagues across manufacturing, laboratories and support functions deliver life-changing medicines to patients around the world. Apply today and help us build software that lasts.

Your new role

This is not a traditional senior developer role. We are looking for someone who enjoys solving difficult technical challenges, defining technical direction, and then rolling up their sleeves to implement it – discussing architecture strategy in the morning and improving a Python service, designing a PostgreSQL migration, or reviewing a complex pull request in the afternoon.

Day-to-day, your tasks will include:

- Designing and implementing production-grade Python services and evolving REST APIs using FastAPI

- Driving complex technical initiatives across backend, platform and architecture domains, including the incremental modernisation of legacy components while maintaining continuous business delivery

- Designing PostgreSQL schemas, optimising performance and defining zero-downtime migration strategies using Alembic and SQLAlchemy 2.0

- Contributing to AWS platform evolution and Infrastructure-as-Code practices using Terraform, Docker and modern CI/CD pipelines

- Applying Domain-Driven Design principles to define bounded contexts and architectural boundaries that improve maintainability and scalability

- Reviewing code, mentoring engineers and raising engineering standards across the team

- Partnering closely with the Tech Lead, Product Owner and architects on the long-term evolution of the platform

Your new department

In Enterprise IT & Quality, you will be part of a business area that drives impact across the full Novo Nordisk value chain. We strive to stay close to our stakeholders in the business to ensure we deliver on their needs, helping reach millions of people living with serious chronic diseases. Our focus is on being at the forefront within our three areas; ensuring the highest quality for patients, being a trusted tech leader and an environmentally responsible business.

You will join the small, highly capable engineering team behind NN Planner – one of Novo Nordisk's strategic digital products. The platform already supports more than 4,000 users across Manufacturing, QA, QC laboratories, warehouses and support functions, optimising workforce utilisation, laboratory planning, training requirements and operational capacity – and it is expected to continue scaling significantly in the coming years. We work in modern cloud technologies on AWS, with containerised Python services, PostgreSQL databases and a React frontend, and we build software that supports critical business processes in a regulated environment.

Your skills & qualifications

We are looking for a hands-on engineer with deep technical expertise, structured thinking and sound engineering judgement – someone passionate about building software that lasts. You will bring with you:

- 10+ years of professional software engineering experience, including extensive work on large-scale, business-critical applications and modernising legacy systems in production

- Deep expertise in Python and FastAPI (or similar modern backend frameworks), combined with strong experience in PostgreSQL, SQLAlchemy 2.0 and Alembic

- Hands-on experience with AWS, Terraform and Docker in production environments, plus a strong testing discipline using pytest and BDD methodologies

- Practical experience applying Domain-Driven Design, Repository Pattern and distributed systems thinking, with the ability to navigate ambiguity and solve difficult engineering problems

- Strong communication and collaboration skills, with the maturity to make technical decisions that are understandable, traceable, documented and maintainable

- Nice to have: React, TypeScript, Redux, TanStack Query, Storybook, Vitest, Zod and OpenAPI; Operational Research; or experience from regulated industries, workforce planning, optimisation, scheduling, or manufacturing/laboratory systems

Working at Novo Nordisk

Every day we seek the solutions that defeat serious chronic diseases. To do this, we approach our work with determination, constant curiosity and a commitment to finding better ways forward. For over 100 years, this dedication has driven us to build a company focused on lasting change for long-term health. One where diverse thinking, shared purpose and mutual respect come together to create extraordinary results. When you join us, you're not just starting a job – you're becoming part of a story that spans generations.

What we offer

A senior engineering role with significant ownership, a product with real business impact, and the opportunity to influence architecture and platform direction alongside a highly skilled and collaborative team. We work with modern cloud technologies and engineering practices, and offer flexible working arrangements from our offices in Ballerup. Being part of a global healthcare company means opportunities to learn and develop are all around us, while our benefits are designed with your career and life stage in mind.

Salary:  For this role, the Annual Base Salary ranges from 742,600.00 to 1,091,600.00 DKK, corresponding to the level of the position.

The placement within the salary range will be assessed during the recruitment process based on the candidate’s skills, competencies, knowledge, and relevant experience.

Incentives and Benefits: The salary package may include short-term and/or long-term incentives as well as other employee benefits based on position level, location, functional area and relevant market benchmarks. Learn more about our Reward Philosophy here.

More information

You are welcome to contact Louise Anker Snorrason (Senior Project Manager) on +45 30 75 72 43 if you have questions about the role. Please be advised that Louise will not support queries about your recruitment status.

Deadline

2 August 2026. (Applications are reviewed on an ongoing basis, so please apply as soon as possible.)

Please apply in English and refrain from adding a photo to your CV to ensure fair and efficient processing. We are committed to an inclusive recruitment process and equality of opportunity for all applicants. Note that we use screening questions as part of the application process for this position; however, all CVs are reviewed by a recruiter. We encourage you to answer these carefully, as they help us assess your expectations, experience and qualifications.

We commit to an inclusive recruitment process and equality of opportunity for all our job applicants.

At Novo Nordisk, we're not chasing quick fixes – we're creating lasting change for long-term health. For over 100 years, we've been driven by a single purpose: to defeat serious chronic diseases and help millions of people live healthier lives. This dedication fuels our constant curiosity and inspires us to push the boundaries of what's possible in healthcare. We embrace diverse perspectives, seek out bold ideas, and build partnerships rooted in shared purpose. Together, we're making healthcare more accessible, treating and preventing diseases, and pioneering solutions that create change spanning generations. When you join us, you become part of something bigger – a legacy of impact that reaches far beyond today.