Software Engineer Senior

Software Engineer Senior Staff

OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for Software Engineer Senior Staff to support our customer in Huntsville, AL.

OASYS, INC. is seeking a full-time Software Engineer. In this role, you will support the software engineering lifecycle following the program Software Development Plan (SDP) to include requirements analysis, object-oriented analysis & design, code & unit test, integration, and support to formal test/delivery. The successful candidate will have experience and/or knowledge of languages such as C or C++. Must be a US Citizen;

this position will require Final Secret government security clearance prior to starting. This position is located at a facility that requires special access.

• Demonstrated experience delivering safety‑critical or mission‑critical embedded software (e.g., aerospace, defense, automotive, industrial).
• Deep understanding of low‑level hardware interfaces (UART, SPI, I²C, CAN, MIL‑STD‑1553, Space Wire, etc.)
• Ability to define high‑level software structures, module boundaries, and interface contracts.
• Experience with architectural patterns for embedded systems (layered, component‑based, event‑driven, microkernel)
• Proven ability to capture, manage, and trace requirements
• Proficiency in modeling tools (UML/SysML, Enterprise Architect, IBM Rhapsody) for architecture documentation

• Experience on programs involving missiles, satellites, launch vehicles, or other high‑reliability platforms
• Formal training in software architecture or systems engineering (e.g., TOGAF, SEBoK)
• Experience establishing end‑to‑end traceability across hardware, firmware, and verification artifacts in large, multi‑discipline programs
• Knowledge of cybersecurity hardening for embedded platforms (secure boot, Trusted Execution Environments, FIPS‑validated crypto)
• Exposure to MBSE (Model‑Based Systems Engineering) and SysML integration.

This position requires a government security clearance. You must be a US Citizen for consideration. Clearance Level: Secret.

• Expression of Interest:
  By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
• Ability to Work Remotely: Onsite Full‑time.
• Schedule for this Position: 9x80 every other Friday off.

Located in Huntsville, Alabama, OASYS, INC. is a technology services and products company dedicated to delivering the right solutions to our government and commercial clients. Our innovative solutions combined with today's technology and our subject matter expertise help to provide full lifecycle support for our client's needs.

OASYS, INC. offers a robust benefit plan to include: BC/BS of Alabama Health & Dental, VSP Vision, Employee Stock Ownership Plan (ESOP), 401‑K with Matching, Flexible Spending Account, Tuition Reimbursement, Holidays, Vacation, Short‑term/Long‑term Disability.

EOE AA M/F/Vet/Disability Equal Employment Opportunity is the Law: http://www
1.eeoc.gov/employers/upload/