Production Technician

Aira Group AB

10% of Europe’s CO₂ emissions are caused by residential heating and energy bills are out of control. Aira is here to change that. With our intelligent Aira Heat Pump at the heart, we’re making the switch to clean energy-tech easier and more affordable. Helping Europe turn off gas and slashing energy costs one home at a time. Founded in 2022, and with 1200+ employees and counting, Aira is driving the clean energy revolution by providing homes with modern clean energy-tech solutions such as solar power, battery storage solutions and heat pumps. With a state-of-the-art production facility in Poland, and HQ in Stockholm, Sweden, and hubs across the UK, Germany and Italy, Aira is well on track to install clean energy-tech into 5 million homes by 2034. About the role As a Senior Flutter Developer in the Engagement Team, you will build the tools that enable our field teams to deliver smooth installations and exceptional service. You'll be part of one of our cross-functional teams working primarily with the mobile application that installers and service technicians use. In practice, this means building tools for commissioning and servicing the full range of Aira's clean energy systems — heat pumps, solar panels, batteries, and inverters, as well as managing software updates and helping technicians troubleshoot in the field. As a Senior Flutter developer, you will: Own and ship features across iOS and Android from a single Flutter codebase Partner with UX design to craft interfaces built for real field conditions, used by technicians on-site, often under time pressure Work tightly with the in-field teams to optimize the commissioning experience. Build reliable device integrations over Bluetooth, Wi-Fi, and Thread - connecting technicians directly to the hardware they're installing and servicing Make pragmatic decisions about when to prioritize speed and when to focus on long-term scalability Contribute to architectural decisions that support our rapid growth and international expansion What you bring to the team: Solid experience with product-driven software development and agile environments 5+ years of mobile development experience Flutter experience preferred, React Native considered. Experience building and consuming REST APIs and integrating third-party SDKs Familiarity with state management patterns such as Bloc or Riverpod, and an appreciation for testable code Comfort working with structured data contracts and binary protocols — we use Protobuf for communication between the app and our edge devices We would also appreciate if you have experience with or knowledge of some of the following: Hands-on experience with device communication protocols such as Bluetooth LE, Wi-Fi, or Thread Familiarity with embedded Linux environments or edge computing. The devices our app talks to run a Rust application on Linux hardware Experience with event-driven architectures or message brokers such as Kafka A track record of thriving in rapid-growth environments (start-ups, scale-ups, or new projects). What is in it for you? Develop and grow in a fast-growing scale-up with a supportive and inclusive culture. Contribute to something measurable. Every smooth commissioning enables a more environmentally sustainable Europe. See your work in action in the real world. The app you build is used by technicians installing clean energy systems in people's homes across Europe every day. Collaborate with colleagues across the full value chain, from R&D in Sweden and manufacturing in Poland to installation teams on the ground in the UK, Germany, and Italy. Enjoy the flexibility of our hybrid work model, with our office centrally located in Stockholm near Sankt Eriksplan and Odenplan. We interview on a rolling basis throughout the summer, with the majority of interviews taking place in August. At Aira, we champion next-generation energy as well as diversity and inclusion. We firmly believe that a diverse workforce fosters innovation and creativity, enhancing our ability to serve customers and communities effectively. We welcome individuals from all backgrounds, cultures and perspectives to join our team. Our commitment is to uphold equality and inclusivity, fostering a collaborative environment where everyone can thrive and contribute to a better future for our people and the planet.

Wrknest AB

About the role Wrknest is recruiting a Backend Software Engineer on behalf of an international technology company based in Stockholm. The company develops advanced connected platforms used by businesses and consumers worldwide, with a strong focus on networking, cloud infrastructure, and smart device ecosystems. In this role, you will join a highly skilled engineering team responsible for developing and maintaining core backend systems powering connected products and services. The position is ideal for someone who enjoys solving technically complex challenges, improving system reliability, and working across backend, cloud, embedded, and application environments. You will become part of a collaborative and product-focused engineering culture where quality, ownership, and continuous improvement are highly valued. Your future tasks ou will play an important role in designing and developing backend services that support large-scale connected systems and applications. The role involves close collaboration with several technical teams and offers the opportunity to influence both architecture and development processes. Examples of responsibilities include: Designing, building, and maintaining backend services using Node.js and TypeScript Developing secure, scalable, and maintainable APIs and workflows Contributing to architectural discussions and technical decisions Reviewing code and supporting high engineering standards and release quality Investigating production issues and implementing robust solutions Collaborating with teams within embedded, web, mobile, product, and design Improving reliability, observability, and developer experience across services We are looking for someone who Requirements At least 5 years of professional experience working with Node.js and TypeScript Minimum 3 years of experience working with SQL databases such as PostgreSQL Experience developing software for connected devices, infrastructure products, networking systems, or similar complex environments Good understanding of web security, including OWASP, OAuth, and browser security fundamentals Strong debugging skills and experience with defensive programming Professional experience with Git, Unix/Linux, and Docker-based environments Ability to work independently and take ownership of technical solutions Strong communication skills in English, both written and spoken Valid Swedish work permit and residence in Sweden at the time of application Meritorious Experience with Rust or Go Experience with gRPC Experience with WebRTC Experience with DevOps, CI/CD, and build pipelines Experience using AI tools and LLMs to improve engineering workflows and productivity The client values engineers who are curious, solution-oriented, and motivated by building reliable products in technically advanced environments. You are comfortable collaborating across teams while also taking ownership of your own work. Other information Start: According to agreement Location: Stockholm, Sweden Employment type: Full-time Work model: Hybrid Benefits Competitive compensation package Occupational pension and insurance package Wellness allowance Flexible working hours Access to modern technical equipment and products Please note that a background check will be conducted in the final stage of the recruitment process. About the client The client is an international technology company developing advanced platforms and connected solutions used globally within networking, infrastructure, and smart technology. Their products combine software, cloud services, and hardware to create scalable and reliable ecosystems used by millions of users worldwide. The company is driven by innovation, technical excellence, and long-term product development, offering employees the opportunity to work on impactful technology in an international environment. Om Wrknest Engineering Wrknest Engineering specializes in helping engineers and technicians find their next career step. We collaborate with forward-thinking companies and offer both recruitment and consulting assignments within technology and industry. We believe in building long-term relationships and strive to be an engaged and attentive partner. Through us, you gain the opportunity to be part of technological advancements that shape tomorrow’s society, in roles where your expertise makes a real difference. Our ambition is for you to thrive, grow, and feel proud of your work. Read more at www.wrknestengineering.se.

Silex Microsystems AB

Silex is investing strategically in MEMS testing as a core capability to strengthen our position in the market and deliver industry-leading solutions to our customers. As part of this effort, we are expanding our MEMS test infrastructure, methodologies, and expertise. This is a unique opportunity to be part of a forward-looking initiative that will define the next generation of MEMS performance and reliability. Read more about Silex here. About the role We are looking for a professional with a strong focus on test engineering and hands-on experience with test equipment and measurements, and related software development. You will join a growing and collaborative engineering team dedicated to developing advanced test solutions that support the full product lifecycle – from early prototypes to high-volume manufacturing. As a MEMS Test Engineer, you will play a key role in developing, optimizing, and executing test systems – both hardware and software – for a broad range of MEMS products, ensuring performance meets customer specifications and industry standards. You will collaborate cross-functionally within Silex and communicate with both suppliers and customers. In this role you will: Design and implement test solutions based on MEMS device specifications, covering electrical, optical, and mechanical performance. Develop and validate test cases and procedures for both manual and automated wafer-level and die-level test systems. Select, configure, and maintain specialized test instrumentation, including probe stations, precision source-measure units (SMUs), oscilloscopes, and custom MEMS test fixtures. Perform hands-on testing in both cleanroom and laboratory environments, ensuring proper handling of sensitive MEMS devices and adherence to ESD and contamination-control procedures. Analyze and interpret test data to evaluate device performance, identify trends, and diagnose issues at both the device and system level. Collaborate closely with design, process, and product engineers to troubleshoot, optimize test coverage, and improve product yield and reliability. Thoroughly document all test plans, configurations, and results to ensure full traceability and enable continuous improvement in test methods and equipment. Drive improvements in throughput, automation, and measurement accuracy across the MEMS test process flow. Ensure all activities comply with quality standards, customer requirements, and relevant industry regulations. We are looking for someone who has A Masters degree or Ph.D. in Engineering, preferably in Electrical Engineering, Engineering Physics, or a related field. At least 3 years of experience in electrical measurements, device characterization, or production tests – ideally including MEMS or semiconductor tests within an industrial environment or academia. Experience in LabVIEW programming for test automation, instrument control, and data acquisition. Proficiency in Python and familiarity with SQL databases for data analysis, visualization and structured data management. Hands-on experience with a wide range of test equipment, such as source-measure units (SMUs), parametric analyzers, probe stations, oscilloscopes, spectrum analyzers, and other specialized tools used in MEMS testing. Experience in cleanroom or controlled laboratory environments. Strong analytical mindset and problem-solving skills, with the ability to troubleshoot complex device- and system-level issues. Basic knowledge or experience in 3D CAD modeling and prototype manufacturing methods (e.g., 3D printing, CNC machining) for test fixture design and development. What we offer you Collaboration with a team of exceptional colleagues who share your passion for technology. Opportunities to work with cutting-edge MEMS technology in a state-of-the-art environment. Being part of a world-leading company that drives innovation and shapes the future of MEMS development. Continuous knowledge sharing with global experts in MEMS process integration and development. About Silex Silex is the world’s largest and most advanced pure-play MEMS foundry, headquartered in Stockholm. MEMS is present in nearly all modern technology, from personal gadgets to automotive electronics, medical monitoring and testing equipment, and thermal management systems. With a team of expert engineers, operators, technicians, support staff, specialists, and more, Silex brings the ideas and concepts of the industry’s leading MEMS innovators to life. The Silex team brings together talented, curious, visionary, and determined individuals to break new ground in the industry alongside customers, developing the latest process technology within MEMS for global applications. As part of this team, you will work with some of the world’s largest technology giants and innovation leaders in industries such as medicine, life sciences, consumer electronics, telecommunications, automotive, and industrial sectors. The recruitment process We have an ongoing recruitment process and therefore encourage you to submit your application as soon as possible. To apply, please attach your CV and answer a few questions. Our process is competency-based and includes a personality and logic test as well as reference checks. Additionally, we will conduct a background check and drug test prior to employment, and as an employer, we perform random alcohol and drug tests for all employees.