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Algorithm and Simulation Software Engineer Sr

OASYS, INC.
Sunnyvale, CA Full Time
POSTED ON 12/9/2025 CLOSED ON 2/10/2026

What are the responsibilities and job description for the Algorithm and Simulation Software Engineer Sr position at OASYS, INC.?

Algorithm and Simulation Software Engineer Sr

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

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. 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.

Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future.

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.

Basic Qualifications: • Strong software design, problem solving, and troubleshooting skills • Experience with programming languages such as C, C , and Python • Real Time Operating System (RTOS) experience – (GreenHill or VxWorks) • Standard teaming: Ability to work with multi-disciplined teams • Experience with full software life cycle development including SW design, architecture and integration & test • Experience with Cameo/MagicDraw/Rhapsody • Experience with requirements verification in multiple program lifecycle phases • Experience with Agile project management • Familiar with Guidance, Navigation, and Control Algorithms • Active Secret Clearance Required Desired Skills: • Demonstrated behaviors of a software thinker; select and apply appropriate software thinking skills to solve very sophisticated problems and implement constructive change • Familiarity reviewing codes, requirement, and UML diagrams • Experience with White Paper and Trade Studies • Experience participating on teams implementing MBSE on programs or contracts • Missile or space segment design and test experience with one or more subsystems Security Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.

Clearance Level: Secret

Other Important Information You Should Know Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite.

Schedule for this Position:9x80 every other Friday off

Pay Rate: 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.

About OASYS, INC.: 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.

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

www.oasys-incorporated.com

EOE AA M/F/Vet/Disability Equal Employment Opportunity is the Law: http://www1.eeoc.gov/employers/upload/eeoc_self_print_poster.pdf

 

Salary : $134,000 - $236,325

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