Sr. Software Engineer; Direct To Cell

Space

X was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today Space

X is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

The Direct to Cell network will expand Starlink’s vision by providing ubiquitous connectivity and seamless access to text, voice, and data for LTE phones and devices across the globe. The Direct to Cell network leverages the infrastructure we’ve built for Starlink over the past several years. Starlink is the world’s largest satellite constellation and is providing fast, reliable internet to 9M+ users worldwide.

As the global leader in rocket and satellite launch and manufacturing, Space

X is uniquely positioned to rapidly scale our Direct to Cell network and will rapidly launch a constellation of hundreds of satellites. As a software engineer on the Direct to Cell program, you are responsible for the complete lifecycle of the software they create, including development, testing, and support. We expect our engineers to close the feedback loop between software design and real‑world performance.

In this role, your software will have a meaningful and measurable impact on the world.

• Develop highly reliable, real‑time software that plans and executes network topology for our satellite‑based global network in order to connect mobile phones and maximize user experience.
• Participate in and lead architecture, design, and code reviews.
• Develop prototypes and manage experiments to prove out key design concepts.
• Develop tools for software development and deployment, data analysis and visualization, and test execution across multiple environments, including virtualized hardware environments, real hardware‑in‑the‑loop simulations, and on‑orbit testing.

• Bachelor’s degree in computer science, engineering, math, or STEM discipline and 5+ years of professional experience in software development; OR 7+ years of professional experience in software development in lieu of a degree.
• Development experience in Python, C, or C++.

• Knowledgeable in real‑time rendering, game engine development, physics simulation, or other real‑time, resource‑constrained, high‑performance computing.
• Knowledgeable in network topology, numerical optimization techniques, graph‑theoretic approaches, or convex optimization.
• Developed, debugged, and deployed software that has been used in real world applications/projects.
• Creative approach to problem solving, exceptional analytical skills, and engineering fundamentals.
• Excellent communication skills both written and verbal.
• Ability to work effectively in a dynamic environment with changing needs and requirements.
• Experience with distributed systems and internet services.

• Must be willing to work extended hours and/or weekends as needed.

Pay range:
Software Engineer / Senior: $ – $ per year.

Your actual level and base salary will be determined on a case‑by‑case basis and may vary based on the following considerations: job‑related knowledge and skills, education, and experience.

Base salary is just one part of your total rewards package  may also be eligible for long‑term incentives, in the form of company stock, stock options, or long‑term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long‑term disability insurance, life insurance, paid parental leave, and various other discounts and perks.

You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year. Exempt employees are eligible for 5 days of sick leave per year. Company shuttles are offered to employees for round‑trip travel from select Seattle locations to the Space

X Redmond office Monday to Friday.

• To conform to U.S. Government export regulations,…