Senior Systems Engineer
Caci-Iss
Danbury, CT · Posted November 9, 2026
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Where Danbury, CT ranks
Where Danbury, CT placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for mid-career professionals in the Northeast69% · of 70
- #1Best cities for mid-career professionals in New England69% · of 28
- #6Best college towns for junior jobs in New England29% · of 19
- #13Best cities for junior jobs in New England25% · of 28
- #17Best cities for software and engineering jobs in New England46 openings · of 24
- #24Best college towns for junior jobs in the Northeast29% · of 50
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Pay compared with the market
This listing does not state pay. Across 177 open senior systems engineer listings that state pay, the middle half runs $133,000 to $168,500 and the median is $133,000.
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Senior Systems Engineer salaries by state · Check your own pay
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About the job
Job Title: Senior Systems Engineer
Job Category: Engineering
Time Type: Full time
Minimum Clearance Required to Start: TS/SCI
Employee Type: Regular
Percentage of Travel Required: Up to 10%
Type of Travel: Continental US
* * *
The Opportunity: As a Senior Systems Engineer you will work in a team-based environment to develop Electro-Optical (EO) systems that operate in space environments. Depending on the complexity of the program a Senior Systems Engineer will be expected to work with Chief Systems Engineers to manage requirements, provide technical oversight for internal and subcontracted designs, and formal verification of subassemblies. For smaller programs a Senior Systems Engineer may be expected to perform as the Lead Systems Engineer. Senior Systems Engineers must possess skills in requirements management, system integration, requirements verification, supplier management, qualification and acceptance testing, prepare and present technical material for customer reviews, and author contract documents
Responsibilities:
Work with the technical team to establish robust and executable program plans including the identification of tasks, trade studies, modelling, analyses, and risk management
Review and assess customer requirements, establish requirements management including validation, decomposition, flow down, and technical budgeting Develop specifications and interface control documents
Develop and guide verification including a requirements verification matrix, verification plans, test requirements, and preparation of sell-off materials to demonstrate compliance
Evaluate the work and results from the technical team to provide feedback and direction
Communicate with the program office, functional management, and technical team members to ensure proper program execution and early issue and risk identification
Document statement of work (SOW) and performance specifications for subcontracted items
Qualifications:
Education Requirements: Bachelor’s degree in electrical engineering, physics, or related field. Advanced degree preferred.
Experience Required:
Must be able to obtain and maintain a TS/SCI clearance.
5 +years of relevant work experience such as systems engineering of complex systems throughout the product lifecycle
Familiarity with electro-optical (EO) systems
Experience developing, integrating, and verifying digital control systems employing FPGAs and/or embedded processors
Familiarity with analog electrical designs, EMI/EMC management, and cable harnesses
Creating and maintaining electrical interface control documents
Creating and maintaining FPGA and software interface control documents
Troubleshooting and root cause analysis
Writing requirements specifications, verification matrices, verification plans, and verification reports
Requirements management using IBM Rational DOORS or another requirements management system
Program planning including scope definition and task estimation
Proficient written communication skills including technical writing
Proficient verbal skills including technical presentations with the ability and technical confidence to brief a variety of internal and external customers
Experience Desired:
Decomposition of complex systems into logical building blocks, the ability to develop the requisite error budgets, and requirements traceability
Familiarity with optical systems for visible through long wave infrared applications for both imaging and non-imaging systems
Control theory with open and closed-loop feedback
Familiarity with aerospace protocols such as MIL-STD-1553, RS-422, Ethernet, and SpaceWire
Firmware and software development (e.g., VHDL, C, C++, Python, MatLab)
Modeling and analysis of EO/IR systems
Use and development of analytical tools such as MatLab for modeling/analysis for system development and verification
Development and verification of space-based electronics
Familiarity with electrical considerations for thermal vacuum space environments Parts, materials, and processes for space environments Technical leadership of cross-functional/discipline teams
Concept of operations (CONOPS) development
Familiarity with Model Base Systems Engineering
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What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.
Pay Range :
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is: $94,400 - $198,200
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.