Full-stack Software Engineer (Maternity Cover) at Quantum Foundry Copenhagen

Join Quantum Foundry Copenhagen as a Full-stack Software Engineer during a maternity cover period. In this pivotal role, you will leverage your expertise in both front-end and back-end technologies to develop and maintain innovative software solutions. You will collaborate closely with multidisciplinary teams to ensure high-quality deliverables and contribut…

Managing expenditures in a chaotic environment can be challenging. Outdated processes not only hinder finance teams but also impact the entire organization. At Pleo, we’re transforming this landscape. Our spend management solutions are designed to streamline financial operations, making them empowering and surprisingly effective for both finance teams and employees—with the goal of helping businesses 'go beyond'.The term ‘Pleo’ translates to 'more than you’d expect', which encapsulates our mission and the essence of our success over the past decade.We are at a critical junction in our journey; each decision we make directly influences our 40,000+ customers, our business trajectory, and our collective achievements. We seek individuals who are passionate about identifying customer needs, simplifying complex challenges into actionable solutions, and respectfully challenging the status quo, all while aspiring for excellence. Our ambitions are high, and while we don’t claim to have all the answers, that uncertainty is part of the excitement! We are a driven, progressive, and, importantly, a kind community of over 850 individuals from more than 100 nationalities, all united in delivering the future of business spending together.At Pleo, our mission is to redefine spend management by making it both effective and empowering.We are excited to welcome a Staff Engineer to our GenAI Core team. In this role, you will play a pivotal part in establishing the technical direction for Pleo’s AI platform, the foundational infrastructure that enables product teams across the organization to develop AI-driven features consistently and at scale.About GenAI CoreGenAI Core is responsible for the architecture and operation of Pleo’s AI platform infrastructure. We empower every product team at Pleo to build reliable, observable AI-powered features without the need to start from scratch.Our responsibilities include:LLM routing and access: A centralized LLM proxy layer (LiteLLM) that directs requests to various model providers (Azure OpenAI, AWS Bedrock, Google Gemini), while ensuring budget compliance and rate limiting.Observability and evaluation: Tools and integrations (BrainTrust) to monitor, log, and assess LLM calls in production, facilitating both automated evaluations and human oversight.Platform standards and guidance: We set the standards for AI development at Pleo, providing frameworks, contracts, and shared components for product teams to utilize.Internal consulting: As teams across Pleo integrate AI capabilities, GenAI Core will serve as a technical partner, supporting teams in the design and implementation of AI features atop the platform.This role involves software engineering within the AI infrastructure domain, focusing primarily on building reliable, scalable solutions.

AirApps is looking for a Software Architect based in Copenhagen. This position centers on designing and building software systems that meet both current and future needs. The architect will shape technical decisions and help set the direction for new products and features. Role overview This role focuses on creating software architectures that support scalability and strong performance. Collaboration with teams across disciplines is a core part of the job, ensuring that solutions fit both business and technical requirements. What you will do Design and implement software solutions for AirApps products Work closely with engineers, product managers, and other stakeholders Guide architectural decisions to support company technology goals Ensure systems are scalable and perform reliably Requirements Experience in software architecture and system design Ability to collaborate with cross-functional teams Strong understanding of scalable and high-performing application development

Navigating the complexities of spend management can be a daunting task. At Pleo, we are redefining this experience by creating financial solutions that streamline money management for finance teams and employees alike. Our goal is to empower organizations to go beyond traditional boundaries.The name ‘Pleo’ translates to ‘more than you’d expect,’ a philosophy that has fueled our success for over a decade.We find ourselves at a critical juncture in our growth journey; every decision impacts our 40,000+ clients and our overall trajectory. We seek individuals who take pride in understanding customer needs, transforming intricate problems into straightforward solutions, and who are not afraid to challenge the status quo in a respectful manner. Driven by our aspirations, we embrace the unknown as part of our adventure. Our diverse team of over 850 colleagues from more than 100 nationalities is committed to shaping the future of business spending together.About the RoleWe are on the lookout for a Backend Engineer to join the dynamic Pleo team. In this role, you will contribute to the development and scaling of our backend systems while engaging in exciting projects as we expand our product and service offerings. If you are enthusiastic about tackling complex technical challenges within a culture that prioritizes transparency, collaboration, and a strong commitment to innovation, this position is ideal for you.Your ResponsibilitiesAs a Backend Engineer, your tasks will include:Designing, building, and maintaining scalable microservices, primarily utilizing Kotlin.Working collaboratively with cross-functional teams to devise innovative solutions across various domains including Platform, Services, and SMB.Assessing system performance and implementing optimizations to guarantee high reliability and scalability.Participating in code reviews and post-mortems while mentoring junior engineers.Proactively managing technical debt and guiding the team through challenges and migrations.Your ProfileYou will excel in this role if you possess:Experience with server-side languages, particularly Kotlin, and familiarity with distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes).Proficiency with relational databases like PostgreSQL and an understanding of system optimizations.

Location: Copenhagen, Denmark Team and Mission SumUp’s Global Bank tribe develops financial tools that help small businesses manage their finances. The team focuses on two main products: Expenses and Making Tax Digital (MTD). These products are central to SumUp’s accounting and compliance platform. The current priority is launching MTD in the UK, making it possible for merchants to submit Income Tax assessments electronically. The long-term plan is to expand the suite to include Income Tax, VAT submissions, and financial reporting across different markets. Role Overview This Fullstack Engineer role is part of the Expenses and MTD squad. It offers the chance to influence early-stage product direction and make a visible impact. The work supports SumUp’s goal of delivering a complete accounting solution for small businesses in the UK and other regions. What You Will Do Deliver features end to end, working across both frontend and backend systems Collaborate with two senior engineers, a Product Manager, a Designer, and an Engineering Manager Work alongside a global network of 200 professionals, ensuring broad impact Collaboration and Support The squad brings together experienced engineers, product experts, and design colleagues. While the team operates with autonomy, it benefits from the resources and support of SumUp’s global organization.

Managing spend can often be a complex and frustrating task. At Pleo, we are revolutionizing this process. We develop innovative spend management solutions that empower finance teams and employees, making financial operations smooth and surprisingly effective. Our mission is to help businesses achieve more than they thought possible.The name ‘Pleo’ translates to ‘more than you’d expect’, and this philosophy has guided us to success over the past decade.As we embark on this exciting journey, every decision we make affects our 40,000+ customers and contributes to our collective success. We seek passionate individuals who excel at identifying customer needs, simplifying complex challenges, and pushing boundaries—always with respect and ambition. With over 850 team members from more than 100 nationalities, we are dedicated to transforming the future of business spending together.About the RoleWe are in search of a Backend Engineer to join our dynamic team at Pleo. In this pivotal role, you will contribute to the development and scaling of our backend systems while engaging in exciting projects that enhance our product and service offerings. If you are enthusiastic about tackling intricate technical problems and thrive in a culture that prioritizes transparency, collaboration, and innovation, this position is ideal for you.What You’ll Be DoingAs a Backend Engineer at Pleo, your responsibilities will include:Designing, building, and maintaining scalable microservices primarily using Kotlin.Collaborating with cross-functional teams to develop innovative solutions across various domains, including Platform and Services.Analyzing system performance and implementing optimizations to ensure high reliability and scalability.Participating in code reviews and post-mortems while providing mentorship to fellow engineers.Proactively addressing technical debt and guiding the team through technical challenges and migrations.What You BringTo excel in this role, you should possess:Experience in server-side programming, particularly in Kotlin, along with familiarity with distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes).A solid understanding of relational databases and system design principles.

Managing spending can be a daunting task, and inefficient processes create challenges for everyone involved, not just the finance teams. At Pleo, we are revolutionizing this experience. We develop financial solutions that streamline money management, making it empowering and effective for both finance teams and employees, with a mission to help businesses 'go beyond'.The term 'Pleo' translates to 'more than you’d expect', and embracing this philosophy has been key to our success over the past decade.We are currently at a crucial juncture in our growth; every decision we make impacts our 40,000+ customers, our business, and our collective achievements. We seek individuals who relish uncovering customer needs, transforming complex challenges into simple solutions, questioning established norms (with respect), and consistently striving for excellence. With ambitious goals propelling us forward, we acknowledge that we don’t have everything figured out—and that’s part of the excitement! What we can assure you is that we are a motivated, forward-thinking, and, importantly, kind group of 850+ individuals from over 100 nationalities, united in our commitment to shaping the future of business spending together.Role OverviewWe are on the lookout for a Backend Engineer to join the Pleo team. In this exciting role, you will contribute to building and scaling our backend systems while engaging in innovative projects as we expand our product and service offerings. If you are passionate about tackling intricate technical challenges and desire to be part of a culture that emphasizes transparency, collaboration, and a steadfast commitment to innovation, this position is tailored for you.Key ResponsibilitiesAs a Backend Engineer, your responsibilities will include:Designing, building, and maintaining scalable microservices primarily using Kotlin.Collaborating with cross-functional teams to create innovative solutions across various domains, including Platform, Services, and SMB.Analyzing system performance and implementing optimizations to ensure high reliability and scalability.Participating in code reviews, conducting post-mortems, and mentoring fellow engineers.Proactively addressing technical debt and guiding the team through technical challenges and migrations.QualificationsTo thrive in this role, you should possess:Experience with server-side programming languages, particularly Kotlin, along with familiarity with distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes).Proficiency in relational databases such as PostgreSQL, testing frameworks (e.g., JUnit, Testcontainers), and observability tools like Grafana.

jobgether is seeking a Senior Full-Stack Engineer with strong experience in Python and React. This position is based in Denmark and centers on building and refining web applications that reach users worldwide. Role overview This role covers the full development cycle, from early design discussions through to deployment. As a senior engineer, you will work closely with teams across the company to shape technical solutions and ensure high-quality results. Both backend and frontend skills are essential, as projects will draw on your ability to move between Python and React as needed. What you will do Design and develop web applications using Python and React Collaborate with cross-functional teams throughout the project lifecycle Contribute technical expertise from concept through execution Focus on improving user experience and delivering reliable solutions Requirements Extensive experience with both Python and React Background in full-stack web application development Ability to work independently and as part of a team Strong problem-solving skills and a proactive approach

airapps is looking for a Release Engineer in Copenhagen to help strengthen our software deployment process. This position works closely with teams across the company to coordinate and deliver application releases smoothly and reliably. What you will do Maintain and improve continuous integration and continuous delivery (CI/CD) pipelines Automate build processes to support efficient software delivery Collaborate with cross-functional teams to support application releases Troubleshoot deployment issues and apply best practices to improve release quality Requirements Experience with CI/CD tools and build automation Strong problem-solving skills for troubleshooting release issues Ability to work effectively with technical and non-technical teams This role focuses on ensuring every release meets quality standards and runs efficiently. Technical expertise and a collaborative approach are essential for success in this position.

At Veo, we are pioneers in AI-driven sports camera technology, offering an innovative, fully automated solution that empowers sports teams to effortlessly capture their matches and training sessions without the need for a camera operator. By democratizing video analysis, we ensure that teams across all levels have access to tools that were once reserved for a select few. Each week, over 40,000 clubs in more than 90 countries trust us to record their games.What truly distinguishes Veo is our team. Our diverse and creative group of innovators and problem-solvers is committed to delivering exceptional products while enjoying the journey together.The OpportunityWe are seeking a Senior Fullstack Engineer to enhance our Monetization team, which focuses on expanding and maintaining Veo's customer base. This vital team influences how users discover, evaluate, purchase, and renew their access to our cutting-edge technology. Your contributions will directly support our mission of making sports technology accessible to everyone.In your role within Monetization, you will develop data-driven, full-stack solutions that refine user experiences from onboarding to purchase and renewal. Our team employs a modern tech stack, including Python, TypeScript, and Rust on the backend, alongside React and TypeScript on the frontend, with a strong emphasis on e-commerce architecture, secure checkout flows, authentication, real-time data pipelines, and application security.

OverviewAt Corti, we are dedicated to democratizing access to medical expertise for everyone, regardless of their location.Globally, many individuals still face barriers to quality healthcare. In even the most advanced systems, healthcare outcomes can be inconsistent, and clinicians often find themselves overwhelmed. As medical knowledge evolves at a rapid pace, it can be difficult for healthcare professionals to keep up.Corti is at the forefront of bridging this gap through our AI platform, which enhances access to medical expertise, minimizes errors, and allows clinicians to reclaim their time, making healthcare more affordable and humane.Quality healthcare is built on quality dialogue, and reliable AI systems require a strong foundation. Join us in building both.Why Join Corti?Corti is developing the intelligence layer for global healthcare. We empower every developer, product team, and innovator in healthcare with access to medical-grade AI, enabling the delivery of care that is faster, safer, and more humane.Our models are specifically designed for healthcare and closely related industries, trained on real-world data to ensure precision, safety, and regulatory trust.With our modular APIs, teams can seamlessly integrate medical speech recognition, summarization, reasoning, and more into their healthcare products without having to start from scratch.We support the innovators who are transforming healthcare, from startups enhancing patient experiences to established enterprises modernizing critical systems.If you share our belief that purpose-built AI will shape the future of healthcare, we invite you to be part of Corti. The RoleAre you a curious and innovative individual eager to tackle real challenges in healthcare? Do you have a passion for the Golang programming language?If so, we would love for you to join our dynamic, autonomous, and collaborative team culture, which is anchored in shared values, a commitment to quality, and a spirit of experimentation.As a Senior Backend Engineer on our Engineering team, you will play a key role in developing groundbreaking healthcare products. Your focus will be on creating software that supports the medical community through advancements in speech recognition and text generation. Your contributions will help clinicians, nurses, and doctors learn from their interactions and continuously improve their practice. You'll have the opportunity to learn daily from experts in software engineering, machine learning, and data science—are you ready for this adventure?

airapps is looking for a Backend Quality Assurance Engineer in Copenhagen. This position centers on making sure backend software functions reliably and meets quality expectations. Role overview As a Backend Quality Assurance Engineer, collaboration is key. The role involves working with developers, product managers, and other team members to test backend features and catch issues early. Every release depends on careful validation and a commitment to quality. What you will do Test and validate backend functionalities in ongoing projects Identify and document defects to help improve product reliability Work with cross-functional teams to support continuous improvement of QA processes Collaboration This role works closely with several stakeholders across the company, helping to maintain high standards and support the delivery of dependable software products.

Join Famly as a Senior Full Stack Engineer and contribute to our mission of enhancing collaboration in early childhood education. In this role, you will develop scalable solutions within a dynamic, agile team, leveraging cutting-edge AI tools to elevate our product and support thousands of daycares utilizing Famly.At Famly, we are dedicated to creating the most collaborative Early Childhood Platform, empowering those involved in a child's life to connect, share their responsibilities, and deepen their understanding of early education. Our goal is to simplify life for educators and families, allowing them to focus on what truly matters.You will be part of our newly formed AIM crew, consisting of seven talented engineers, two designers, and a product manager. This team is responsible for various significant domains within our platform, working on a range of tasks from minor enhancements to strategic long-term projects across both frontend and backend.We seek an engineer who actively leverages AI tools like Copilot, Cursor, or Claude Code to enhance productivity and quality. You should not only embrace AI-assisted development but also see it as a transformative approach to engineering.This position is based in our Copenhagen office (Købmagergade), with a requirement of at least four days a week in the office.

Join the dynamic Coaching, Insights, and Analysis Group as a Senior Full-Stack Engineer at veo. In this pivotal role, you will leverage your expertise in both front-end and back-end development to create innovative solutions that enhance our coaching capabilities and provide critical insights for our users. You will collaborate closely with cross-functional teams, contributing to the design and implementation of scalable applications that support our mission of delivering top-notch coaching experiences.

Do you thrive on ensuring BGP and HA run flawlessly with zero downtime during failover? Are you passionate about taking responsibility, pursuing professional development, and tackling new challenges? At Netcompany, we are seeking a Senior Network Engineer to help drive and enhance our network infrastructure within both data centers and enterprise/campus environments.Key Responsibilities and TechnologiesNetcompany Operations is a well-established operational organization responsible for everything from critical societal and business application management to infrastructure handling in two state-of-the-art data centers.As a Senior Network Engineer, you will join our network team within the broader infrastructure department, delivering stable and secure solutions in our private cloud that supports mission-critical systems. You will engage in the daily operations and maintenance of Netcompany’s networks within our data centers, handling complex and business-critical tasks across all areas of the network domain—aligned with your professional ambition for growth.You will enjoy technical ownership and direct influence over solutions for public and mission-critical clients. Additionally, you will work on security as well as automation and DevOps principles in networking, covering everything from core routing to security and WAN/edge.Your primary tasks will include:Operation, troubleshooting, expansion, and design of networks in data centers and/or enterprise/campus.Security optimization through segmentation, PBR policies, access control, SIEM, and IPS.Operation of Fortigate firewalls, Cisco ASR routers, ACI switch core, and related technologies in data centers.Automation/DevOps and scripting with Python, Ansible, Terraform, GitLab CI/CD, templates, pipelines, and code reviews.Close collaboration with specialists in server, storage, and security—along with the opportunity to set technical direction.About YouYou are driven, deliver results, and take responsibility. You think through solutions, document processes, build standards, and elevate the team. You thrive in taking charge and working methodically.Moreover, we envision that you:Hold a diploma, bachelor’s, or master’s degree—or have a similar level of qualification in IT.Have a minimum of a couple of years of experience in a similar role.Possess basic knowledge of scripting and automation tools.

Join our dynamic team as a Linux Operations Engineer at Netcompany A/S, where you will play a pivotal role in managing and optimizing our Linux-based systems. You will collaborate with cross-functional teams to ensure the seamless operation of our infrastructure, troubleshoot issues, and implement best practices in system administration.Your expertise will contribute to enhancing system performance, security, and reliability, enabling us to deliver exceptional services to our clients.

Jobgether is looking for a Senior Data Engineer based in Denmark. This position centers on building and supporting the data infrastructure that powers analytics and business intelligence across the company. Role overview The Senior Data Engineer will design, develop, and maintain data pipelines and data models. The work ensures that data moves efficiently through the organization and remains accessible for analysis and reporting. Key responsibilities Create and optimize data pipelines for reliable data flow Develop and maintain data models to support analytics needs Support business intelligence by making data accessible and organized Location This role is based in Denmark.

Join us at Netcompany1 as a Purple Security Engineer, where you will play a crucial role in safeguarding our digital infrastructure. We are looking for a dedicated professional who is passionate about cybersecurity and eager to contribute to innovative security solutions. In this position, you will be responsible for identifying vulnerabilities, implementing security measures, and ensuring compliance with industry standards.

Managing expenses can often be a convoluted process. At Pleo, we're revolutionizing spend management by creating solutions that streamline financial operations, making them empowering and effective for both finance teams and employees. Our mission is to help businesses 'go beyond' traditional spending methods.The term 'Pleo' translates to 'more than you'd expect', and this philosophy has guided our success over the past decade.As we embark on this significant phase of our journey, every decision influences our over 40,000 customers and contributes to our business’s overall achievement. We seek individuals who are passionate about identifying customer needs, simplifying complex challenges, and respectfully challenging the status quo. With our ambitious goals driving us, we recognize that the journey is just as important as the destination.We are a diverse, progressive team of over 850 individuals from more than 100 nationalities, united in our commitment to transform the future of business spending.At Pleo, we strive to make spend management surprisingly effective and empowering. Our product is utilized by thousands of companies across Europe, and our design system plays a crucial role in providing a consistent, accessible, and high-quality user experience.We are looking for a Staff Engineer to join our Design Systems team and help guide the engineering strategy and execution of our design system across both web and mobile platforms.Responsibilities of the Design Systems TeamDevelop and enhance Telescope, Pleo's design system, including components, patterns, guidelines, and tooling.Facilitate faster product delivery by ensuring consistent UI, accessibility, and quality.Collaborate with Design and Engineering teams across the organization to promote adoption and improve the contribution experience.Manage shared foundations such as tokens, components, documentation, and best practices.Your RoleAs a Staff Tech Lead Engineer in Design Systems, you will act as a force multiplier for product delivery and UI quality across Pleo.Define the technical direction for key aspects of Telescope, including architecture, component standards, release practices, and quality benchmarks.Enhance our contribution model and optimize team interactions with Design Systems.Oversee and refine the request process for the team (triage, prioritization, and expectations).Improve the developer and contributor experience through thoughtful enhancements and support.

Navigating the complexities of spend management can be challenging, often leading to cumbersome processes that impact everyone involved, particularly finance teams. At Pleo, we are revolutionizing this space. We create innovative spend solutions that streamline financial management, making it seamless and empowering for both finance professionals and employees, with the vision to help businesses truly 'go beyond'.The name 'Pleo' embodies our ethos of exceeding expectations, a principle that has driven our success over the past decade.As we reach a critical juncture in our journey, every decision we make directly influences our 40,000+ customers, our business trajectory, and our shared success. We seek individuals who take pride in identifying customer needs, simplifying complex challenges, respectfully questioning the status quo, and consistently aiming for excellence. With ambitious goals propelling us forward, we admit that we haven’t mastered everything yet, and that’s part of the excitement! Our team of over 850 talented individuals from more than 100 nationalities is dedicated to shaping the future of business spending together.At Pleo, our mission is to transform spend management into a surprisingly effective and empowering experience.We are currently seeking a Staff Engineer to join our GenAI Core team. You will play a key role in shaping the technical direction of Pleo's AI platform, which provides the foundational infrastructure that enables product teams across the organization to develop AI-driven features reliably and at scale.About GenAI CoreGenAI Core is responsible for the AI platform infrastructure at Pleo. We empower product teams to implement AI-powered features efficiently, reliably, and without duplicating efforts.Our responsibilities include:LLM routing and access: managing a centralized LLM proxy layer (LiteLLM) that directs requests to various model providers (Azure OpenAI, AWS Bedrock, Google Gemini), including budget enforcement and rate limiting.Observability and evaluation: providing integrations and tools (BrainTrust) to monitor, log, and evaluate LLM calls in production, facilitating both automated assessments and human reviews.Setting platform standards and guidelines: we determine the best practices for AI implementation at Pleo, offering patterns, contracts, and shared components for product teams.Internal consulting: as AI capabilities are adopted across Pleo, GenAI Core will increasingly serve as a technical partner, assisting teams in the correct design and implementation of AI features atop our platform.