180d ago
Job description
As a Development Engineer at Midsummer, you'll be part of our innovation team, working closely with colleagues across production and other functions. Together, you'll drive development, testing, qualification and certification activities that help ensure our products meet both market and sustainability requirements.
What you'll do
- Evaluate and qualify new materials, suppliers and product solutions
- Plan, perform and analyse testing to support product development, certification and quality improvements
- Drive material, product and process improvements from idea through implementation
- Coordinate product certifications and ensure compliance with relevant standards, sustainability requirements and market regulations
- Contribute to sustainability-related initiatives, environmental documentation and product sustainability requirements
- Maintain technical documentation, including certificates, data sheets and environmental documentation
- Support production with troubleshooting, root cause analysis and continuous improvement activities
- Collaborate with suppliers, purchasing, innovation, production and external partners
- Support sales with technical expertise, customer documentation, sustainability information and product-related questions
What we're looking for
- A few years of experience in a technical role with exposure to one or more of the areas relevant to this position.
- A university degree in materials science, materials engineering, materials chemistry, materials physics or a related field
- Comfortable working hands-on with products, materials and testing activities
- Fluency in English, both written and spoken
Experience working independently with troubleshooting, testing, and structured technical investigations. Experience across multiple areas such as material qualification, product certification, supplier collaboration, sustainability requirements, and technical documentation is advantageous.
Who you are
You're self-driven, structured and comfortable taking ownership of your work. You enjoy collaborating across different functions and can communicate technical information clearly to colleagues, suppliers and customers.
You combine attention to detail with a practical mindset and enjoy both analysis and hands-on problem-solving. When challenges arise, you're able to work independently, identify root causes and drive activities forward.
Most importantly, you're someone who sees things through. You take ownership, stay persistent when obstacles appear, and have the determination to turn ideas, investigations and improvement initiatives into completed results.
About this role
Posted
27 Oct 2026
Updated
27 Oct 2026
Job type
Full time
Workplace
On-site
Sectors
Working hours
UTC+01:00
Experience
Mid level
Employermidsummer.se
LinkedInMidsummer AB
About Midsummer AB
Company Overview
Name
Midsummer AB, publicly traded on Nasdaq First North Growth Market under ticker MIDS
HeadquartersJärfälla, Sweden
Founded2004
SizeApproximately 180 employees ranged in recent years. Revenue data for 2023 or later is not publicly disclosed (source: midsummer.se)
What They Do
Midsummer AB is a Swedish industrial technology company specializing in the development, manufacturing, and sale of flexible thin-film CIGS solar cells, solar roofs, and the production equipment used to create these cells (source: midsummer.se). Founded in 2004, the company has evolved from producing manufacturing equipment to a vertically integrated business that spans cell production equipment, solar roof products, and installed rooftop solar solutions (source: midsummer.se). Their core technology, CIGS thin-film photovoltaics, is characterized by being thin, lightweight, flexible, and discreet, offering easier installation compared to conventional glass panels (source: nasdaq.com). Midsummer markets its solar panels under the SLIM, WAVE, and BOLD product lines, each tailored for different roof types, and also sells the DUO system for mass production and the UNO system for research and development use by universities and institutions (source: midsummer.se).
The company targets a diverse customer base including construction firms, roofing companies, solar installation companies, research institutions, and end customers purchasing solar roofs directly (source: nasdaq.com). Additionally, Midsummer sells production equipment and related services to strategically selected industrial partners, including overseas manufacturers (source: nasdaq.com). A key differentiator is their focus on lightweight flexible CIGS panels and the proprietary DUO manufacturing system, which is reportedly the most widespread manufacturing tool for flexible CIGS solar cells globally (source: nasdaq.com). The company also emphasizes the environmental benefits of its technology, claiming its panels have a carbon footprint approximately one-tenth that of traditional silicon solar panels (source: midsummer.se).
Projects & Track Record
Midsummer has a documented history of equipment sales and solar roof deployments rather than utility-scale solar farms (source: midsummer.se). One notable project includes a 667 kW field installation of thin and lightweight solar panels for Green Energy Group, which was the company’s largest single order at the time (source: marketscreener.com). Another significant project involved supplying a production line to a Russian nanotechnology and nanomaterials center under a framework agreement with Rusnano; this production line was manufactured in Järfälla and destined for installation in Saransk, Russia (source: midsummer.se). In 2026, Midsummer announced a binding agreement with PT Metalogika Rekayasa Sistem to establish manufacturing in Indonesia, initially targeting 20 MW per year capacity with potential expansion toward 200 MW annually (source: pv-magazine.com).
Recent Developments
Recent developments for Midsummer have focused on international manufacturing expansion and capital actions. In September 2026, the company signed a binding investment and industrialization agreement with Indonesian firm PT Metalogika Rekayasa Sistem to build a flexible CIGS solar cell and module plant in Indonesia, with Midsummer supplying the DUO system, equipment, services, and taking a minority stake in the joint venture (source: nasdaq.com). In late 2025, Midsummer announced a fully guaranteed rights issue of approximately SEK 175 million and reached an agreement on debt conversion, while also expanding its Colombian operations from 15 MW to between 100 MW and 200 MW (source: inderes.fi). The company’s 2025 quarterly reports showed materially improved operating results and increased sales of machinery and solar panels (source: midsummer.se).
Working There
Midsummer hires across a variety of functions including industrial manufacturing, engineering, product development, project delivery, sales, and international expansion, reflecting its diverse operations in factory equipment, solar product sales, and factory startup activities (source: midsummer.se). The company’s careers portal provides a public contact channel at [email protected] and outlines a dedicated recruitment and privacy-processing flow (source: careers.midsummer.se). The repeated launches of new factories and production lines in Sweden, Italy, Colombia, and Indonesia suggest ongoing hiring opportunities tied to manufacturing scale-up, equipment installation, and commercial growth (source: nasdaq.com).
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