About the team

Onomondo is on a mission to revolutionize global IoT connectivity. Our work directly impacts millions of devices globally, ensuring seamless, low-latency and highly available connectivity for mission-critical applications. Our services enable secure authentication, signaling and messaging for devices using Onomondo SIM cards, across 680+ networks in 180+ countries.

Our API and WebApp squad is at the heart of how customers interact with Onomondo. From our public API and webhook infrastructure to our customer-facing web app and underlying data platform, we enable users to seamlessly integrate, manage, and gain insights from their IoT connectivity.

The squad is cross-functional, with engineers who bring expertise in backend, frontend, database engineering, and product management. Together, we deliver user-facing features, build integrations, and ensure our platform is robust, intuitive, and secure. Our work touches everything from API design and performance to event-driven architectures, monitoring and user experience, all in close collaboration with Product through discovery, user interviews and iterative delivery.

Our tech stack includes Node.js, React, Postgres, AWS, Kubernetes, Terraform. We value pragmatism, clean design, and a relentless focus on quality, observability and customer impact.

What you’ll be doing

• Lead and support a cross-functional engineering squad, fostering a culture of collaboration, ownership and continuous improvement.

• Coach and develop your team through regular 1:1s, constructive feedback and professional growth opportunities.

• Partner closely with Product to drive a product discovery mindset, ensuring solutions are rooted in user needs, validated by customer insights and aligned with business goals.

• Champion quality and reliability by embedding monitoring, alerting, automated testing and relevant engineering practices into the team’s workflow.

• Lead the ideation and implementation of technical solutions, ensuring they are pragmatic and scalable.

• Facilitate effective planning, delivery and stakeholder communication, ensuring the squad delivers high-value features with predictable quality.

• Collaborate with peers in engineering leadership to align standards, share learnings and continuously evolve our engineering practices.

• Support the team in balancing short-term delivery with long-term maintainability and scalability.

What you bring

• Experience leading software engineering teams, ideally with exposure to both backend and frontend development.

• Strong interpersonal skills, able to build trust, communicate clearly, and foster an inclusive, supportive environment.

• A product mindset. You care about solving real user problems, understand product discovery and are comfortable working with ambiguity.

• Background in high-volume, cloud-based systems, with an understanding of performance, reliability, and observability best practices.

• Experience working with APIs, web applications and databases; bonus if you have exposure to event-driven architectures and real-time systems.

• Proven ability to balance delivery speed with quality, using metrics and monitoring to guide decisions.

• A leadership style that combines technical understanding, coaching, and pragmatic decision-making.

• Based in Copenhagen.

Why join Onomondo?

We’re not just building another set of APIs or a generic web app, we’re reimagining how customers interact with global IoT connectivity. From event-driven webhooks to intuitive dashboards and powerful data integrations, you’ll be shaping products used globally. We’re solving challenges that haven’t been tackled before and your work will be visible, valuable and global in impact.

Your will experience:

• A playful, ambitious culture where people are trusted to do what they do best

• A workspace that’s one-of-a-kind, in both design and energy

• A team that’s small, sharp, and all-in on shipping meaningful things fast, with room for your voice and fingerprints on what we build.

• Legendary lunches, snack heaven, and events that actually bring people together

• Real ownership and impact — especially in this role, where you’ll influence how customers connect, monitor, and manage their IoT solutions.

• A modern tech stack you’ll enjoy working with: Node.js, React, Redis, Postgres, AWS, Kubernetes, Terraform

Our hiring process

We care deeply about creating a fair and inclusive process.

That means:

• We don’t need your picture or cover letter - just your CV

• We select candidates based on skills and relevant work experience for the role.

We’re fast but thoughtful - our goal is to ensure you feel informed, respected, and excited throughout the journey.

1. 30-minute screening call with our recruiter, Christian Payne

2. Technical interview (in-person) with 2 engineering team members

3. Culture Interview (1hr 20 mins) with Dana (VP of Engineering) and an engineering team member

4. Final stage - Meet our leadership for 30 minutes, onsite - Meet with our Co-Founder, Michael Karlsen and our CTO, Henrik Aagaard