Senior Software Engineer

Auction Group A/S (AutoProff); København; On-site; DKK 700,000 - 900,000; Full time

Job summary

AutoProff, Copenhagen-based, seeks a Software Engineer to design, develop, and maintain robust post-trade services in a cross-functional B2B FinTech environment. You will work closely with product, operations, and external partners to deliver scalable solutions across Europe.

You’ll operate in a developer-friendly culture that values experimentation, learning, and ownership, using modern tools and best practices to ship reliable software.

Qualifications

• Proven ability to thrive in adaptable, ownership-driven environments.
• Experience with .NET and C#.
• Strong understanding of OOP, distributed systems and event-driven architecture.
• Experience with relational databases or No-SQL databases.
• Fluent business English (spoken and written).
• Willingness to learn new technologies and tools.
• Ability to troubleshoot and debug complex issues.

Responsibilities

• Design, develop, and maintain efficient, reusable code in a cross-functional team.
• Collaborate with product, operations and external partners to deliver robust post-trade services.
• Contribute to scalable solutions and architecture for the Fulfillment & FinTech domain.
• Mentor and coach teammates and share knowledge.
• Own and drive the quality of your code and features.

Skills

C#/.NET

OOP

Distributed systems

Event-driven

Relational/NoSQL DBs

Business English

Adaptability

Troubleshooting

Tools

AWS

Job description

Join AutoProff – Help Shape the Future of Automotive Tech!

We seek a new colleague to join our talented Technology team based at our Copenhagen office.

At AutoProff, we believe great technology drives great experiences - and we’re just getting started. We’re on a mission to transform the way vehicles are traded across Europe, and we need curious and driven new colleagues to help us do it.

As our new Software Engineer, you’ll join a cross-functional team focused on the Fulfillment & FinTech domain, where we build and evolve critical post-trade services in a B2B environment. Our team owns key capabilities such as logistics orchestration, transport partner integrations, payment touchpoints, invoicing visibility, and claims handling, ensuring seamless and transparent operations after a transaction is completed. Working closely with product, operations, and external partners, you’ll help design and deliver robust, scalable solutions that connect multiple systems and stakeholders, directly impacting the efficiency and reliability of our platform for customers across Europe.

We foster a developer-friendly culture where innovation isn’t just encouraged, it’s expected. You’ll have access to modern, AI-powered tools to enhance productivity and streamline your daily work. We host hackathons to explore new tech, ideas and tools, and our internal developer forums are open spaces for discussing architecture, new technologies, and tough engineering challenges. Whether building or learning, there's always room to experiment and grow.

Let's dive into your key responsibilities, you will

• Work in a dynamic and international environment with experienced and skilled colleagues
• Design, develop, and maintain efficient, reusable, and reliable code using engineering best practices and design patterns.
• Drive a culture of “you build it - you own it” - mentality
• Identify and act on areas for your own personal development
• Mentor and coach co-workers on topics that you master.

The need-to-have skills

• Proven ability to thrive in environments that value adaptability, shared ownership, and continuous improvement
• Experience working with .NET and C#
• Strong understanding of object-oriented programming, distributed systems and event-driven architecture.
• Experience with relational databases or No-SQL databases
• Good communication skills and fluency in business English (spoken and written)
• Open towards and able to quickly learn new technologies
• Ability to troubleshoot problems, debug and suggest solutions

The nice-to-have skills

• Experience working with AWS Infrastructure or other cloud providers, especially containerization and serverless computing.
• Experience with RESTful APIs

About AutoProff

AutoProff was founded 2013 in Denmark with the aim to digitise B2B used car trading, helping car dealers increase sales and improve profits.

In August 2022, AutoScout24, the leading specialised pan-European online car marketplace, acquired a majority stake in AutoProff. The partnership has supported the rapid expansion of AutoProff's solutions across Europe and enables the creation of Europe's first fully integrated C2B-B2C-B2C dealing solution for used cars.

At AutoProff, we specialise in providing online B2B used-car dealing solutions designed to improve the buying and selling experience for professional car dealers and their customers.

We are the emerging European leader with more than 150,000 B2B used cars on our online trading platforms annually.

With a focus on effective solutions, digitisation and customer service, we are committed to being the home of B2B car dealing for European car dealers.