Our Mission: Energy Transition : Join us in shaping the future of solar energy

Why work at 3S?

With us, you’ll work on projects that make a visible impact – on buildings, in cities and in the energy landscape of tomorrow. What unites our interdisciplinary team is a desire to rethink photovoltaics – making them precise, aesthetically pleasing and sustainable. Every day, we’re committed to driving the energy transition forward. Building by building.

Meaningful work

Help shape the energy transition.

Swiss-made quality

Work at a company with the highest technical standards.

Innovative environment

Research, development, and architecture under one roof.

Team culture

Respect, trust, and open communication are the foundation of our work.

High-quality, hands-on training is the foundation of every professional partner. Through a variety of teaching formats and customized training content, we create the ideal conditions for the successful installation of a 3S solar systems.

Dominik Reber
Training Manager
With 3S since 2026

Innovation, team spirit, and personal development are central to our corporate culture and are actively encouraged. Together with our customers, we are actively shaping the energy transition, combining sustainability, forward-thinking, and the highest standards of quality and design in our products. The open collaboration and mutual support we share are particularly motivating.

Kevin Scheidegger
Finance Specialist
With 3S since 2022

Your place at 3S

Our building-integrated solar systems and projects combine technology, design, and sustainability. To this end, we are seeking talented individuals in various fields.

Technology

We develop products and solar systems from concept to production-ready stage. To do this, we need professionals in the fields of development, engineering, product management, and process development.

Operations

"Swiss Made" means that we manufacture our building-integrated solar systems in Switzerland. To do this, we need employees in production, industrial engineering, supply chain management, and logistics.

Marketing & Sales

Marketing and Sales are in direct contact with our customers: architects, installers, solution partners, and building owners. Customer support is handled by our employees in Marketing, Sales, Internal Sales, Global Sales, Project Business, System Training, Services, and After-Sales.

Internal Services

Internal Services ensure smooth internal processes and efficiency. Our Finance and Accounting, IT, HR, and Business Support teams serve as the central hub. With their expertise, they support our operational departments.

Career Start for New Graduates

We support young talent - whether through apprenticeships, internships, or entry-level positions after graduation. 3S offers you an environment where you can learn, make a difference, and grow.

Explore current job openings

Thun-based work : Where innovation meets quality of life.

Our Thun-based location offers an inspiring work environment nestled between the lake and the mountains. It is conveniently close to research institutions, industry, and nature.

What to expect at 3S

We believe that excellence can only flourish where people feel trusted and are able to reach their full potential.

Trust from day one

For us, coordination and freedom are not opposites, but two sides of the same coin. Our teams work independently, but we’re all pulling in the same direction. We foster a leadership culture that helps you grow:

  • Personal responsibility: You take the lead in shaping your tasks and making decisions.

  • Knowledge sharing: We actively share our successes and lessons learned with one another.

  • Equal footing: For us, it’s the best idea that counts, not the most impressive title.

  • Innovation on the Job: You’ll continue to grow every day—right on the job.

A work experience that motivates

When you enjoy coming to work, you stay healthy, inspired, and productive. Your satisfaction is the key to our success. Our collaboration is guided by four values:

  • Together: We succeed and learn as a team.

  • Creative: We actively encourage innovative approaches.

  • Looking to the future: We are working on the solutions of tomorrow.

  • On the positive side: A respectful, optimistic atmosphere is the standard for us.

Hybrid, flexible, and productive

Work wherever you’re most productive. Thanks to modern, cloud-based tools and a culture of flexibility, both you and your workspace are dynamic. Whether you’re focused on work from home or engaging in creative collaboration on-site we provide the infrastructure and trust you need to work from anywhere. With a newly designed office based on the concept of activity-based working (ABW), we also provide the right work environment for every activity.

Your benefits at 3S

  • Flexibility & Balance
    • Hybrid & Flexible: Generous work-from-home policies (even for part-time employees) and hybrid work schedules that fit your lifestyle.

    • Adjustment to life stages: Flexible short- or long-term adjustment of your employment level.

    • Time off: The option to take unpaid leave to pursue your personal passions.

    • Short breaks included: Two 15-minute paid breaks each day, one in the morning and one in the afternoon, to take a breather and have a cup of coffee.

  • Development & Outlook
    • Lifelong learning: Support for your external training and continuing education.

    • In-house expertise: Regular specialized courses—both in-house and external.

    • Real career opportunities: We provide personalized support and offer you long-term career paths within the company.

  • Mobility & Work Location
    • Modern headquarters: An accessible, fully air-conditioned building with a welcoming atmosphere.

    • Perfectly connected: Public transportation stops right outside our front door.

    • Sustainable commuting: Free use of company e-bikes (including for personal use) and electric charging stations.

  • Appreciation & Community
    • Celebrate together: Legendary summer parties with the whole family and festive Christmas celebrations with your loved ones.

    • Small gestures: We're celebrating you! Look forward to personalized birthday and anniversary gifts.

Ready for your future at 3S?

We’re looking for motivated individuals who want to help us shape the solar architecture of the future. Apply now, either through an unsolicited application or for one of our open positions.

Noah Battistini
Human Resources