Role Description We have an exciting opportunity for an Orion GN&C Engineer to join the team with Astrion, a teammate company. This position is opened to remote work. - Develop and evaluate safety-critical flight software - Utilize Matlab/Simulink/Autocode skills to update Orion GN&C Flight Software - Utilize Python & C/C++ skills to analyze and test Orion GN&C Flight Software - Further, develop flight software processes and procedures - Perform deep-dive analyses of flight and simulation software - Perform other duties as required Qualifications - Typically requires a bachelor's degree in Engineering with experience in the field or in a related area - Significant experience with MATLAB including Simulink, Stateflow, and Autocode - Proficiency with C/C++ and Python - Significant knowledge of GN&C - Experience in the following flight software specialty areas: - GN&C software development - Software process and procedure development - Software Integration and Build Management - Excellent communication skills and the ability to work in a team environment consisting of NASA civil servants and various contractor employees Requirements - Requires a bachelor’s degree in engineering and a minimum of 5 years of experience in the field or in a related area - Significant experience with C, C++, and Python - Experience with TRICK/JEOD simulation architecture - Safety and flight-critical embedded software development - Object-oriented software development - Knowledgeable in source code control Company Description Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you! We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are excited about what we do, and we need you on our team as we take on exciting challenges for NASA’s pursuits in deep space exploration. As NASA’s largest engineering solutions provider working together with NASA at centers across the United States.

• Build & Scale: Develop intelligent, scalable solutions for collection journeys that handle high-volume debt recovery operations. • Design Customer-Centric Experiences: Create comprehensive renegotiation and installment strategies that balance recovery goals with customer satisfaction. • Leverage AI for Impact: Use artificial intelligence to prioritize tasks, automate workflows, and accelerate feature delivery. • Collaborate & Iterate: Work cross-functionally with Product, Data, and Customer Success teams to test and implement recovery strategies. • Measure & Optimize: Analyze customer behavior data to measure impact and continuously iterate on collection approaches.

• Develop new features for our flagship product — the Cozey Operating System (COS) • Build internal tools and platforms to replace third-party solutions — we like to build our own systems from A to Z • Design and deploy AI agents to automate and simplify warehouse management workflows • Work closely with operations and product teams to identify pain points and rapidly ship high-impact solutions • Own projects end-to-end — from design and architecture to implementation and deployment

• Design and build backend services in Golang that integrate with payment processors, gateways, and card networks • Own critical money-movement flows end to end: authorization, capture, settlement, refunds, reconciliation, and chargeback/dispute handling • Build idempotent, fault-tolerant, auditable transaction processing within a distributed architecture (transactional outbox patterns; queues such as Kafka, SQS, or RabbitMQ) • Operate within PCI DSS scope — tokenization, network tokens, secure handling of payment data, and 3DS/SCA flows where applicable • Instrument and monitor payment health: authorization/decline rates, processor performance, latency, and settlement accuracy, driving continuous improvement • Use AI tooling (Claude and equivalent LLMs) as part of your daily workflow to accelerate design, coding, research, testing, and documentation — within Sezzle's security and data-handling policies • Mentor engineers and help raise the bar across the team