Senior Full-Stack Engineer (Python & React)

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 contribute to the advancement of our projects.

Join the innovative team at Quantum Foundry Copenhagen as a Part-time Research Assistant. This position offers you the opportunity to engage in groundbreaking research projects within a dynamic environment. You will support our research efforts, gain hands-on experience, and contribute to the advancement of quantum technologies.

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.

Join Famly as a Full Stack Engineer and play a pivotal role in developing lean experiments and scalable solutions that leverage agentic AI to elevate our products and drive significant growth.Who are we? Famly is on a mission to bridge the collaboration gap in early childhood education. We are crafting the world’s most collaborative Early Childhood Platform, designed for adults involved in a child's life to connect, share responsibilities, and deepen their understanding of early childhood education. Our aim is to simplify life for educators and families, allowing them to focus on what truly matters.In this role, you will be part of a dynamic Growth team composed of 7 engineers, 2 designers, and a PM. Here, each member significantly influences the path we take. Your contributions will range from implementing quick, data-driven experiments to developing long-term strategic features across both frontend and backend domains. You will actively integrate AI tools like Copilot, Cursor, or Claude Code into your workflow to enhance efficiency and quality in your coding practices.The Growth department operates directly under the CEO, empowering us to make swift decisions and adapt our strategies based on real-time learning.This position is based in our Copenhagen office (Købmagergade), with a minimum expectation of 4 days a week in-office.Your Key Responsibilities:Develop quick, lean experiments and scalable production features that foster growth on Famly's platform.Participate in a data-driven team environment where you can immediately observe the impact of your work on thousands of childcare professionals and families.Engage in a variety of tasks across our products, including frontend UI development, backend API integration, and infrastructure improvements.Collaborate with team members on planning, designing, developing, and launching new features and enhancements.Utilize AI tools as an integral part of your development process for prototyping, code generation, debugging, and more.Aim to transition Famly into a product-led organization, enabling customers to discover, test, purchase, and appreciate Famly independently.Currently, the team is deeply engaged in expanding Famly's presence in the US market. This includes creating a billing and payments hub for childcare centers, redesigning product navigation, and enhancing onboarding processes to boost activation. These complex, domain-rich challenges demand a nuanced understanding of how childcare professionals operate their businesses.

At Pleo, we understand that managing expenses can often be chaotic and cumbersome. We're on a mission to revolutionize spend management by creating solutions that make handling finances seamless, empowering, and incredibly efficient for finance teams and their colleagues alike. Our goal is to help businesses 'go beyond' their financial capabilities.The name 'Pleo' signifies 'more than you'd expect', and this philosophy has been pivotal to our success over the past decade.As we continue to grow, every decision we make directly influences over 40,000 customers, our business trajectory, and our shared success. We seek individuals who are passionate about identifying customer needs, transforming complex challenges into straightforward solutions, and who aren't afraid to respectfully challenge the status quo. With ambitious goals propelling us forward, we acknowledge that we are still learning, and that journey is part of the excitement! We're a dynamic and kind team of over 850 individuals from more than 100 nationalities, all dedicated to shaping the future of business spending together.About the RoleWe are in search of a Full Stack Data Analyst to join our Critical Data Products (CDP) team at Pleo. In this pivotal role, you will leverage payment data to provide actionable insights that inform decisions across the organization. You will engage in end-to-end processes, from developing data models to designing dashboards and presenting insights to stakeholders.Your collaboration with the Product and Engineering teams in the Payments sector will focus on enhancing payment processes, minimizing failures, and fortifying decision-making through robust metrics and analytical tools. Furthermore, you'll be an integral part of the broader Product Hub, which is committed to fostering a data-driven culture throughout the company, utilizing analytics and AI to accelerate our initiatives.Please note applications will be accepted until Monday, March 30, 2026, at 09:00 GMT. We will not review applications before this date to ensure everyone has an equitable opportunity, so please take the time to submit your application.Who You'll Be Working WithYour direct reporting will be to the Manager of the CDP team, which is part of the Product Hub within the Data department. The CDP team comprises experts in Data Analytics, Data Engineering, Data Science, and Analytics Engineering, all collaborating to support a wide range of areas including KYC/Compliance, FinCrime, Credit, Card/Banking Infrastructure, Regulatory Reporting, and various product teams across Pleo. Together, we deliver essential data pipelines, dashboards, strategic insights, and guidance for data enablement.

Join Our TeamThe Unity Studio Productions team consists of highly skilled Software Developers and Technical Artists who possess extensive knowledge of the Unity platform. Our primary objective is to support our clients in enhancing their projects, streamlining their internal processes, and tackling complex technical challenges, all while collaborating closely with the Unity Engine team. We offer a range of co-development services that can vary in length from one week to eighteen months and beyond. We collaborate with globally recognized game development studios and publishers seeking to optimize their game performance, meet visual standards, port to challenging platforms, and receive timely advice on utilizing Unity effectively. If you are technically adept, customer-oriented, inquisitive, and enjoy a dynamic work environment, this role is perfect for you. Your daily responsibilities will involve partnering with game development studios, optimizing their games, crafting solutions for their toughest challenges, and ensuring the success of their projects. We are committed to fostering a diverse team and encourage applicants from varied backgrounds to apply.

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.

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.

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.

Join Atom Computing as a Quantum Operations Engineer in the vibrant city of Copenhagen. In this role, you will play a critical part in advancing our quantum computing systems, ensuring optimal performance and reliability. Your expertise in quantum technologies will help us push the boundaries of what is possible in this exciting field.

Role Overview Speechify is hiring an iOS Core Product Software Engineer in Copenhagen. This role focuses on building and improving our iOS applications to deliver a smooth, reliable experience for users. What You Will Do Design, develop, and maintain iOS applications using the latest technologies Work closely with other engineers, designers, and product managers to deliver features that align with user needs and business objectives Contribute to the core product, shaping the future of Speechify on iOS devices Location This position is based in Copenhagen, Denmark.

Full-Time DesignerJoin Reform, where we collaborate with internationally acclaimed architects and designers to create modern kitchens that set new industry standards. Our work spans architecture, design, and interior solutions, with a mission to offer unique, innovative kitchens and storage solutions built to last for many years. With the kitchen at the heart of the home, we continually focus on meeting the evolving needs of everyday life.Founded in Copenhagen in 2014, Reform is now present in Denmark, Germany, Lithuania, and the USA. In 2023, we achieved B Corp certification and have received numerous international design awards over the years.At Reform, we treat all applicants equally, regardless of ethnic background, religion, gender, national origin, age, sexual orientation, gender identity, or disability.We are looking for a strong addition to our team in Copenhagen. As a designer in our sales team, you will assist our customers in our showroom on Gammel Kongevej and online—from the initial planning to the development of proposals for their new Reform project.

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 seeks a React Engineer to join the team in Copenhagen. This position centers on building web applications that enhance user experience and encourage engagement. Collaboration is a key part of the role, especially with design and product teams to bring new ideas to life as dependable, high-quality features. Responsibilities Develop and maintain web applications using React Work closely with designers and product managers to implement new features Ensure applications perform well across a range of devices and browsers Location This role is based in Copenhagen.

Join SOUNDBOKS, a cutting-edge technology firm and vibrant lifestyle brand renowned for our innovative Bluetooth speakers and audio-reactive lighting solutions. Whether at music festivals, street gatherings, or private celebrations, we transform moments into unforgettable memories with our powerful sound systems.At SOUNDBOKS, we foster a culture of trust and collaboration. Our team members are empowered to take ownership of their projects while receiving unwavering support from their colleagues. Every voice matters, and we believe that collective ideas drive our success.This role is more than just a job; it’s an opportunity to be part of a passionate community where we uplift each other, celebrate achievements, and dedicate ourselves to creating meaningful experiences. With a dynamic team of 70, SOUNDBOKS is a place where you can excel and feel a true sense of belonging.ROLE: Mechanical EngineerTEAM: Product DevelopmentHOURS: Full TimeLOCATION: CopenhagenSTART DATE: June 1st, 2026 or as soon as possibleThe Product Development team oversees the entire product lifecycle, from conceptualization to mass production. Our collaborative and driven team members possess a broad understanding of various disciplines and take ownership of their responsibilities, making a significant impact on our products, the team, and our customers.As a Mechanical Engineer at SOUNDBOKS, you will engage in the mechanical development of our products, closely collaborating with the Lead Mechanical Engineer, the Product Development team, Quality Assurance, and external partners in Asia. Leveraging your engineering expertise, you will assist in developing mechanical engineering (ME) concepts and help convert innovative ideas into precise mechanical assemblies, ensuring compliance with Design for Manufacturing (DFM) standards. You will work with internal stakeholders, partners, and suppliers to ensure a smooth transition from product conception to mass production while upholding high-quality standards and contributing to an exceptional customer experience.Here’s a snapshot of your daily responsibilities:Mechanical Design & PrototypingEngage in the mechanical development of new SOUNDBOKS products.Contribute to the enhancement of industrial design...

airapps is looking for an iOS Engineer in Copenhagen to help shape and build mobile applications. This position centers on creating apps that offer smooth, reliable experiences for users. What you will do Design and develop mobile applications for iOS devices Work closely with colleagues from different teams to define and deliver new features Focus on performance and responsiveness to ensure each app meets high standards Who we’re looking for Experience building iOS applications Comfort working in a collaborative, team-oriented environment Commitment to delivering quality user experiences

Kubapay seeks a Support Engineer in Copenhagen to assist customers with payment solutions. The position centers on technical support and troubleshooting, ensuring clients receive timely help when issues arise. Key responsibilities Handle customer inquiries and technical questions about Kubapay products Identify and resolve problems to keep clients operational Offer clear, practical support so customers can use Kubapay services effectively Location This role is based in Copenhagen, Capital Region of Denmark.

About HappyRobotHappyRobot is an innovative AI-native operating system designed to transform the real economy by bridging the gap between intelligence and action. Our platform integrates real-time data, specialized AI agents, and orchestrating intelligence to empower enterprises to manage complex and mission-critical operations autonomously.By optimizing knowledge, enhancing efficiency at every operational level, and evolving continuously, we focus on supply chain and industrial-scale operations, where resilience, speed, and constant improvement are paramount. This enables our clients to allocate their human resources towards strategic, creative, and high-value endeavors.Discover our vision by visiting our Manifesto. To date, HappyRobot has secured $62 million in funding, including a recent $44 million Series B round in September 2025. Our esteemed investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base10—partners who share our commitment to redefine enterprise operations. We are channeling this investment into creating a world-class team of driven individuals with exceptional problem-solving abilities and a passion for innovation in a fast-paced environment. If our mission resonates with you, you will thrive at HappyRobot.Role OverviewWe are seeking a dynamic and highly skilled Forward Deployed Engineer to join our team. This role blends technical expertise with outstanding communication skills, working closely with customers to ensure they derive maximum value from our AI platform. Your responsibilities will include onboarding, implementation, and ongoing support, alongside contributing to product development and innovation.At HappyRobot, we operate without seniority or hierarchy—our team is built on collaboration. We execute, innovate, take ownership, and genuinely care about our clients' success.