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About the role:

We are building software that tracks what moves in orbit and flags what matters.
You will be working with orbit determination in the intersection between orbital mechanics, mission operations, and intelligence.

While you will touch upon many of our projects, your primary work will be to lead the technical work on our LSSA-Pilot project, developing the algorithms, data pipelines, and operational framing that make space situational awareness usable for non-engineers.
You will work with our flight dynamicsists, who know the orbital mechanics.
Your job is to translate sensor data into orbit knowledge and on to Space Situational Awareness.
This role grows naturally toward technical leadership.

What you will work on:

• Orbit determination, object tracking, and proximity analysis algorithms
• Integration of external space object catalogs and data sources
• Conjunction screening, collision avoidance computation, and launch safety analysis
• Defining CONOPS-level requirements: what operational users need to see, when, and why
• Collaboration with research and industry partners in the SSA domain

What we are looking for:

Mid-to-senior candidate, 5–8 years of experience.
Operational instinct comes from years in mission rooms; we need seniority here.

• Experience with how real missions are operated — not just the physics, but the process
• Background in controls engineering, preferably applied to orbital mechanics and flight dynamics
• Ability to bridge the gap between rigorous analysis and what decision-makers need to act on
• Strong programming skills in Python
• Understanding of orbit determination or propagation techniques
• MSc or PhD in control engineering, aerospace engineering, physics, applied mathematics, or equivalent

Useful but not required

• Experience with space object catalogs, TLE formats, or conjunction data messages
• Familiarity with CCSDS standards
• Interest in defense applications
• Background in mission control, flight operations, or CONOPS development

Requirements

• Fluent in English; Swedish is a plus
• EU or EES citizen

About Vinterstellar

Vinterstellar is a Stockholm-based aerospace company doing mission analysis and flight dynamics for satellite operators and space agencies — from GEO telecommunications to Earth observation to deep-space trajectory design.
Founded in 2018, we are five people and growing, with multiple funded development projects running and a product evolving into a decision-oriented mission analysis platform for the European market.

At Vinterstellar you will have real ownership from day one.
Together we work hybrid and have a lot of freedom when it comes to structuring our time and the way we want to work.

How to apply

Send your CV and a short note about yourself to:

Applications: careers@vinterstellar.se

Role questions: Emil Vinterhav, CEO — emil.vinterhav@vinterstellar.se

Process questions: Andreas Thorell Berchtold — andreas.thorell@vinterstellar.se

Applications are reviewed on a rolling basis.
We hire as soon as we find the right person.