Senior Software Engineer

Apylon; København; Remote; DKK 673,000 - 972,000; Full time

Benefits offered by this job

Competitive salary

Stock options

25 days annual leave

Lunch on us

Remote work (Europe)

Off-sites and annual gatherings

Job summary

Apylon is building an intelligent revenue compliance platform for European healthcare. This senior backend role emphasizes data pipelines, LLm-powered workflows, and scalable APIs within a small, ambitious team across Europe.

You will own core architecture, design, and implementation, shaping engineering culture as an early member while collaborating on cloud infrastructure and distributed systems.

Qualifications

• 4+ years of experience building scalable applications in complex domains.
• Product-minded with focus on why and how to build.
• Clean, pragmatic, and elegant code.
• Experience with cloud infrastructure and distributed systems.
• Comfortable wearing many hats from backend architecture to quick experiments.

Responsibilities

• Shaping Apylon’s core architecture and engineering culture as an early engineering team member.
• Building backend systems, APIs, and data pipelines.
• Creating intelligent systems turning payer contracts and billing rules into executable logic.
• Building automated feedback loops that improve financial outcomes for healthcare providers.
• Owning work end-to-end from design to deployment and monitoring.

Skills

4+ years experience

Backend architecture

Distributed systems

Cloud infrastructure

LLM/prompt tooling

Tools

Python

Django

React

PostgreSQL

AWS

Kubernetes

Terraform

Bedrock

Job description

Senior Software Engineer

Data & AI, Full time, Remote (EU), Berlin, Copenhagen, or Milan

About Apylon And The Opportunity

Apylon is building the intelligent revenue compliance platform for European healthcare. Billions of euros flow between hospitals and insurers through fragmented, manual workflows — a maze of rules, formats, and contracts.

We believe this is a machine learning and automation problem disguised as financial operations.

Apylon is backed by experienced operators and top-tier investors in healthcare and fintech. Our team draws on experience from Zendesk, Pleo, Wawa Fertility, Sibill, and some of the largest multi-country hospital groups in Europe.

You will join the first small engineering team and help turn early traction into a scalable product. You’ll have massive ownership and influence over both what we build and how we build it.

This is primarily a backend role with meaningful work on data pipelines and LLM-powered workflows.

You’ll build systems that turn messy real-world healthcare and payer data into reliable, scalable product primitives.

Delivering healthcare is hard. Getting paid for it shouldn’t be.

Responsibilities

• Shaping Apylon’s core architecture and engineering culture as an early engineering team member.
• Building backend systems, APIs, and data pipelines.
• Creating intelligent systems that turn payer contracts and billing rules from natural language into executable logic.
• Building automated feedback loops that turn human insight into code — directly improving financial outcomes for healthcare providers.
• Owning your work end-to-end: from design to deployment and monitoring.

Who you are

• 4+ years of experience building scalable applications in complex domains — you love solving hard problems that matter.
• Product-minded — you care as much about why we build something as how.
• You write clean, pragmatic, and elegant code.
• You actively use coding agents and LLMs to move faster — not just out of curiosity, but because you see how they can redefine how software is built.
• You’ve worked with cloud infrastructure and distributed systems.
• You’re comfortable wearing many hats — from backend architecture to quick experiments.
• You thrive in ambiguity and turn it into structure.

Bonus points

• Experience taking products from 0→1 or scaling fast-growing systems.
• You’ve worked in a fast-growing environment where priorities shift quickly, and you helped bring clarity and structure.
• Exposure to healthcare, fintech, or regulated domains.

Our tech stack

• Python
• Django
• React
• PostgreSQL
• AWS
• K8s
• Terraform
• Bedrock
• We’re pragmatic — you’ll have a big say in how it evolves.

What Apylon offers

• The chance to solve one of Europe’s biggest healthcare inefficiencies.
• Competitive salary + stock options (you’ll own part of what you build).
• 25 days of annual leave + local public holidays.
• Lunch on us during workdays at the office.
• Regular off-sites and social events — we like building together, not just working together.
• Remote (Europe), or working from Berlin, Milan or Copenhagen.
• This role may require international travel within the EU on a roughly monthly cadence.

Working at Apylon means embarking on a highly ambitious mission to rebuild the financial infrastructure of European healthcare. We’re already live with leading private hospitals, processing thousands of invoices, proving that complex payer rules can be turned into code - powering transparent, automated, and intelligent revenue systems.

Contact The Hiring Manager

Nicolò Calcavecchia

CTO & Co-founder

[e-mail]

Apylon ApS

CVR DK45428672

Kanonbådsvej 2

1437 København

Denmark

© 2026 Apylon ApS