ALTEN Technology provided comprehensive engineering support for a mission-critical software satellite deployment sequencer, focusing on spacecraft deployment sequencing and its precise timing controls. Their approach encompassed remote program support, in-depth hardware and software troubleshooting, and critical subcontract vendor oversight. They meticulously assessed existing software, specifications, requirements, and test protocols, complementing this with on-site functional test support and independent functional verification. As a result of their expertise, ALTEN Technology developed a vital ground support software package that facilitated engineering testing without requiring access to the complete system. They successfully identified and resolved flow-down discrepancies, ensuring accurate verification traceability, and provided actionable recommendations to resolve hardware issues related to the I²C data bus. Furthermore, they offered effective alternatives for addressing software issues in data encoding and CRC, ultimately enabling the achievement of critical program milestone dates. The project leveraged key tools and technologies including GNU Radio, various data encoding schemes like HDLC and NRZ, and programming languages such as C and Python, demonstrating ALTEN Technology’s full-spectrum capabilities across project management, systems, electrical, and software engineering.