Senior Software Engineer

Permanent employee, Full-time · Copenhagen

Who are we looking for?

At Penneo, we are always looking to forge new long-term relationships with people who resonate with our culture and values and are passionate about getting Penneo to the next level.

Do you want to be part of it?

We are now hiring a Senior Software Engineer who will be responsible for developing and maintaining backend systems for our products, directly impacting the core architecture that drives our applications and services.
You will report to our Engineering Manager and have the rest of our awesome Engineering Teams as your closest collaborators.

This is a full-time position at our Penneo HQ in Copenhagen, Denmark

What would be your responsibilities?
  • Design and implement backend services and APIs that are robust, scalable, and secure with a care for quality and testability.

  • Take responsibility for maintaining and enhancing the CI/CD pipeline to ensure smooth and efficient deployment processes.

  • Collaborate effectively with cross-functional teams, including designers, product managers, and other engineers.

  • Continuously improve the code quality, system design, and process.

  • Participate in code reviews, providing constructive feedback to peers and mentoring junior team members.

You will also be expected to:

  • Develop and maintain comprehensive documentation for backend systems.

  • Lead the design of new features focusing on reliable uptime and robust error handling.

  • Adhere to data privacy regulations and standards during implementation.

  • Advocate for and adopt new technologies that improve team efficiency and product capabilities.

What makes you a great match?

We believe that the following traits and experiences are essential for becoming successful in this role, and it is the basis upon which we assess candidates. However, we acknowledge that talent takes many forms, and we would still like to hear from you, even if you don't think you match all the points below.

We expect you to have:

  • Extensive backend development experience, with expertise in RESTful API design and programming languages like PHP, Java/Kotlin, or Node.js.

  • Proficiency in both SQL and NoSQL database technologies.

  • Excellent problem-solving abilities, capable of navigating complex software architectures.

  • A collaborative and communicative mindset, adept at working in fast-paced and evolving environments.

  • Curiosity about new technologies and methodologies, willingness to explore innovative solutions.

  • Enjoys mentorship, contributing to a positive team atmosphere with good humour and an appreciation for a multicultural environment.

  • An appreciation for a multicultural environment.

What we offer
  • Flexible work environment
  • Learning & development opportunities
  • Centrally located office, with company lunch & gym facilities
  • Pension scheme & private health insurance
  • Paid parental leave
  • 30 days of vacation per year
  • IT equipment of your choice
  • Company events and team activities
  • Employee referral program
How will this role progress?
It is important to us to be as transparent as possible and to allow you to level expectations for the role. Therefore, we share our impact description in advance and would love your thoughts about it in your cover letter.

During the 1st month, you will:  

  • Get acquainted with the team, tools, and technologies used in our projects.

  • Complete onboarding sessions with key departments to understand workflows and company culture.

  • Begin contributing to minor bug fixes and feature enhancements to learn our codebase.

  • Start participating in the planning and implementation phases of new features

Within 3 months, you will: 

  • Be fully integrated into our team, leading major feature builds and influencing our project direction.

  • Take on more significant projects as part of our ongoing feature development.

  • Have the opportunity to propose improvements to our current systems.

Within 6 months, you will:  

  • Mentor junior engineers and participate actively in design and code review sessions.

  • Lead a complete cycle of a major product feature, from conception to deployment.

  • Play a critical role in strategic planning for the next phases of our API and Identity solutions.

About us
Penneo is founded and headquartered in Copenhagen. We offer a digital signing solution that helps businesses in Denmark, Norway, and Belgium get documents signed without the fuss - and with full legal compliance.

We are a team of 80+ passionate people, from 20+ countries, with a clear vision: to create a world where we can trust the way businesses do business.




We are screening and interviewing on an ongoing basis. If you are interested in any of our roles, please do not hesitate to submit your application.
Penneo is an equal-opportunity employer. All aspects of employment, hiring, and promotion are based on merit and business needs. We do not discriminate based on race, color, religion, marital status, age, national origin, physical or mental disability, medical condition, pregnancy, gender, sexual orientation, gender identity, or expression.
Please be aware that if hired, as part of our Background check, we require a copy of your criminal record. We do that to ensure that we remain a trusted service provider and partner as well as to comply with relevant compliance requirements such as ISO27001.
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