Software Engineer Sr Stf

Software Engineer Sr Stf

OASYS, INC., a Leading-Edge Government contractor, is seeking applicants for a Software Engineer Sr STF position to support our Space customer in Huntsville, Alabama and Sunnyvale, California.

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. OASYS, INC is seeking an experienced Embedded Software Architect to be part of a team developing missile defense technology that could forever change our ability to deter and respond to adversity.

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.

• 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:
The work associated with this position will be performed onsite here in Huntsville, Alabama or Sunnyvale, California.

Work Schedules: OASYS, INC. supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.

Schedule for this Position: 9x80 every other Friday off

The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $134,000 - $236,325. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only.

OASYS, INC. considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.

The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $154,100 - $267,145. For states not referenced above, the salary range for this position…