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Lead Software Developer (Co-founder possibility)

  • Applications are considered on a rolling basis
  • Stockholm
  • Applications are considered on a rolling basis
  • Stockholm

Want to fight climate change with your software skills? Join Southern Lights as a Lead Software Developer!

About us

Southern Lights is a climate tech startup that is developing an innovative web-based software for creating green energy projects. Our mission is to help replace fossil fuels in heavy industry by enabling green hydrogen at scale. We empower energy developers to efficiently assess green hydrogen projects, with our powerful Software-as-a-Service tool. That way our clients can create successful clean energy projects that will reduce carbon emissions on a global scale.

Founded in 2022, Southern Lights is a growing startup with a talented and dedicated team of professionals. The founders, Felipe and Anton, have worked passionately since product launch (in August 2022) to bring their vision to life and help their global customers to succeed. We are headquartered at KTH Innovation in Stockholm, Sweden.

The role

We are looking for a highly skilled and experienced Lead Software Developer with expertise in full-stack software development to join our team. As the Lead Software Developer at Southern Lights, you will be responsible for the continuous development of our SaaS product and overseeing the entire product life cycle. You will work closely with our founders to identify and prioritize customer needs, and with our energy modeling experts to define the technical direction of our products.

Your responsibilities

  • Set up and maintain a lean product development workflow (Build-Measure-Learn)

  • Build the product through incremental improvements together with the founders

  • Support our junior software developers & external devs.

  • Develop product analytics and user metrics

  • Set up and assure data security

Goals for Spring 2023 :

  • Take responsibility for full stack development and manage our junior developers.

  • Establish a lean cycle of product development so we can build what our customers need.

Goals for Fall 2023 :

  • Build a strong internal product team together with the founders.

Skills & Requirements

Your skills

To be successful in this role, you should have a strong background in software & web development and experience in leading product development teams. You should also have deep expertise in full-stack development, including front-end, back-end, and database technologies.

  • Hands-on software development; 4y+ of experience

  • Team lead experience; 1y+ of experience

  • Skills that might be a plus: Django, PostgreSQL, Python

What we offer

We're here to build a fantastic startup culture and want to reward you for your dedication.

  • Exciting and challenging missions that make a big positive impact in the world

  • Co-working space — company-paid coworking desk in central Stockholm in a fantastic vibrant startup setting.

  • Hybrid work — Flexibility in time and workplace. Our vibrant co-working offices are in Stockholm.

  • Salary and equity — multiple options based on your desire for ownership.

Why join?

As a small team, we work in a highly collaborative environment and you'll have the opportunity to participate in every part of the business from idea to production. You will be working directly with Felipe and Anton, the founders of Southern Lights, and together we will grow our company and our team. This is the starting seed of something big!

  • Climate Impact: Join us in building the product that will help cut fossil fuels on a global scale!

  • Excellence: Practice your development craft with the founders in a fast-paced startup environment.

  • Grow: Shape the direction of product and strategy — Your best ideas will flourish with us!

If you are a stellar full-stack developer, with strong leadership skills and a passion for building great products, we encourage you to apply for this position at Southern Lights.


Diversity and inclusion are core to our culture. If you are a member of an underrepresented group in tech, we strongly encourage you to apply!

Is this role not right for you? If you resonate with our mission at Southern Lights, and you wish to apply anyway, then please send us an application with a cover letter where you describe why you think we are the perfect match.

We look forward to getting your application!

Great Place to Work

  • Business Development Coach from KTH

  • Centrally located office space (KTH Campus)

  • Be part of the thriving KTH Innovation Community

  • Access to mentor and investor network

  • Workshops and service packs from KTH partners

  • Proof-of-concept funding

  • Access to Media Studio and Makerspace

About the company

Southern Lights is currently supported by KTH Innovation and part of a batch in the Pre-incubator program. The KTH Innovation Pre-incubator program is a 12 month program to accelerate the development of promising startup projects from KTH Royal Institute of Technology. Startup projects receive extensive support from inhouse Business Development Coaches as well as additional support such as office space, community activities, team development support, IP and legal counseling, access to industry, mentor and investor networks.

Anton Frisk | Contact Person

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Southern Lights

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