Payload Flight Software Engineer

About the role

As part of the Imaging Operations team, you will build, maintain, and operationalize onboard payload software throughout the satellite's lifecycle. This hands-on role involves turning flight software into reliable operational reality, supporting commissioning, anomaly resolution, and in-orbit operations. You will collaborate across engineering, product assurance, and operations teams to ensure software performs reliably on payload hardware.

Responsibilities

• Develop, test, and maintain high-reliability onboard payload software in compliance with safety standards.
• Support the commissioning of the payload and on-orbit activities for each new satellite.
• Support in-orbit operations and the operations team to ensure software reliability.
• Provide operational feedback into software requirements and design across onboard systems.
• Contribute to the evolution of onboard software architecture and laboratory-based validation environments.
• Support the implementation and validation of Fault Detection, Isolation and Recovery (FDIR) strategies.
• Work at a high interface with the hardware team to make software operational on payload hardware.
• Support the delivery of new software features and upgrades in collaboration with external suppliers.
• Support verification and validation activities from laboratory testing through to in-orbit performance.
• Contribute to integration and testing activities using Flatsat environments and ground-based simulation platforms.
• Support the investigation and resolution of payload anomalies and non-conformance issues.
• Help define and enhance the in-orbit software update process for the constellation fleet.
• Champion strong configuration management practices across onboard software components.
• Develop and optimize tools for ground-based and in-flight testing, including automation frameworks.

Required skills

• Embedded software development
• Software engineering principles
• Software testing
• Git
• CI/CD
• Python
• CCSDS
• CSP

Nice to have

• Satellite commanding systems
• FDIR
• Bash
• Lua
• Java
• C
• C++

Qualifications

• Degree in Aerospace Engineering, Software Engineering, Computer Science, or a related field

Benefits

• Virtual Share Option Plan

About the Company

constellr uses thermal intelligence from space to deliver high-resolution land surface temperature data for governments, defence organisations, and commercial operators. The company focuses on monitoring change, assessing risk, and providing actionable intelligence for sectors including national security, agriculture, and climate resilience.