Capelon is looking for the next Full-stack Software Developer –
Fagerhults Belysning Aktiebolag · Linköping · Tills vidare · Deadline 2026-11-06
Capelon, part of the Fagerhult Group, is hiring a mid-level or senior **full-stack software developer** to join the team developing and operating its GreenStreet cloud platform in Linköping. The role entails end-to-end hands-on engineering, developing backend services, APIs, and data flows from connected outdoor lighting devices through to user-facing web interfaces. Responsibilities include modernizing existing services, building intuitive workflows, conducting code reviews, documenting architectural decisions, and collaborating with engineers working on embedded software, gateways, and cloud infrastructure. The position operates under a collective agreement with flexible working conditions. Candidates must have several years of professional full-stack development experience covering both frontend and backend work. Essential requirements include **backend development experience**, preferably using Java, alongside **JavaScript or TypeScript with a framework like React**, REST API and system integration experience, database and data modelling skills, and practical familiarity with Git, automated testing, and CI/CD. Fluent English is required, while Swedish is a plus. Additional valuable assets include experience with Docker, Kubernetes, PostgreSQL, TimescaleDB, MQTT, event-driven architectures, Keycloak, OAuth2, or OpenID Connect.
Would you like to develop technology that helps cities become smarter, safer and more energy-efficient?
Capelon, part of the Fagerhult Group, develops smart solutions for outdoor lighting. We have offices in Sweden and Denmark, and our products are used by municipalities and other customers in more than ten countries.
Our GreenStreet™ platform connects streetlights, cabinet controllers, gateways and sensors to the cloud. It enables customers to monitor their installations, configure lighting, collect data and identify maintenance needs remotely. Demand for intelligent lighting solutions is increasing as cities work to reduce energy consumption, emissions and environmental impact.
We are now looking for a mid-level or senior full-stack software developer to join the team responsible for developing and operating the GreenStreet cloud platform.
The role
You will work as part of a cross-functional development team, developing functionality from connected-device data and backend services to user-facing workflows and web interfaces.
This is a hands-on role across backend and frontend. You will work with our established Java-based platform while helping modernise its services and user interfaces. You will improve functionality used by customers today and influence how we build the platform going forward.
You will join a team based on collaboration, trust and shared responsibility. With clear goals and the mandate to organize its work, the team makes technical decisions within agreed boundaries and takes responsibility for delivering complete and reliable solutions.
Your responsibilities
- Design, develop, test and maintain backend services and web interfaces
- Develop APIs, integrations and data flows from connected devices through the platform to the user interface
- Build and improve intuitive user workflows
- Contribute to the modernization of existing applications and service
- Take shared responsibility for software quality, security and reliability, from development and testing to deployment and operation
- Investigate and resolve technical problems across the platform
- Participate in code reviews, architectural discussions and documentation of important technical decisions
- Collaborate with colleagues working on embedded software, gateways and cloud infrastructure
- Share knowledge and contribute to improving the team’s ways of working
Skills and experience
You are an experienced software developer who enjoys understanding complete systems. You are comfortable working in an existing platform while helping it evolve over time.
You bring:
- Several years of professional software development experience, including backend and frontend
- Backend development experience, preferably using Java
- Frontend experience with JavaScript or TypeScript and a framework such as React
- Experience developing REST APIs and system integration
- A good understanding of databases and data modelling
- Experience with Git, automated testing and CI/CD
- Good communication and collaboration skills
- Fluency in English; Swedish language skills are a plus
- Experience with some of the following is valuable:
- Docker and Kubernetes
- PostgreSQL or TimescaleDB
- MQTT and event-driven systems
- Keycloak, OAuth2 or OpenID Connect
What we are looking for
We believe you are:
- Curious and interested in understanding the complete product
- Comfortable contributing to both backend and frontend development
- Interested in creating intuitive user experiences
- Pragmatic and able to balance new development with improvements to existing systems
- Comfortable taking responsibility and working with a high degree of trust
- Willing to ask questions, share knowledge and help your colleagues
- Motivated by delivering maintainable solutions that create customer value
What we offer
- The opportunity to develop products that make a difference for cities, people and the environment
- An important role in the continued development of GreenStreet
- A collaborative and international working environment
- A team with experienced and supportive colleagues
- The opportunity to influence technical decisions and our future architecture
- A workplace built around trust, responsibility and continuous learning
- Flexible working conditions
- Collective agreement, benefits and recurring team activities
The position is located in Linköping, Sweden
Are you interested?
Send us your application in English. Applications are reviewed continuously.
For additional information about the position, please contact our R&D Manager, Thomas Engström.
Thomas.engstrom@capelon.com
Om Capelon
Capelon började som en liten svensk pionjär inom smart gatubelysning. Med ett litet team och en öppen, skalbar IoT‑plattform har företaget hjälpt kommuner att spara energi, optimera drift och skapa tryggare offentliga miljöer. Idag är Capelon en ledande leverantör av uppkopplad belysning i Sverige med mer än 80 kommuner som kunder och även med installationer utanför Sverige.
Fagerhult Group förvärvade Capelon 2025 med målet att kombinera denna innovationskraft med Fagerhults internationella räckvidd och hållbarhetsagenda.Fagerhult Group har som mål att vara klimatneutralt enligt science‑based targets till 2045 och har som delmål att minska utsläppen i Scope 1 och 2 med 70 procent samt Scope 3 med 30 procent till 2030.
Portföljen för smart belysning, med Capelon som en central del, är avgörande för att nå dessa mål.
Om Fagerhult Group
Fagerhult Group grundades 1945 och är idag ett av Europas ledande belysningsföretag med cirka 4 000 anställda i 27 länder och en omsättning på 8 305 MSEK år 2024.
Fagerhult Group är noterat på Nasdaq Stockholm.