Jobs in the United States

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Added 16 hours ago
Senior Scheduling Support Systems Engineer
Peraton
Fort Meade, MD
Position requires an active TS/SCI clearance with polygraph.
Added 16 hours ago
Process Optimization/Efficiency Systems Engineer
Peraton
Fort Meade, MD
Position requires an active TS/SCI clearance with polygraph.
Added 16 hours ago
Senior Systems Administrator
Peraton
Fort Meade, MD
Position requires an active TS/SCI clearance with polygraph.
Added 18 hours ago
Disclosure and Classification Management Analyst
Peraton
McLean, VA
Basic Qualifications:• Active TS/SCI clearance with Polygraph.• Minimum of 12 years with BS/BA; Minimum of 10 years with MS/MA; Minimum of 7 years with Ph.D.
Added 18 hours ago
Facilities Engineering Lead
Peraton
McLean, VA
…reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies…
Added 20 hours ago
Systems Engineering (SETA) Advisor
Peraton
McLean, VA
Using a holistic approach, in this role, the Systems Engineer will act as a Technical Advisor/Consultant to critical SI/SETA activities, provide support for intelligence collection…
Added 21 hours ago
Cryptologic Architecture Systems Engineer
Peraton
Fort Meade, MD
Position requires an active TS/SCI clearance with polygraph.
Added 22 hours ago
Electronic Signal Chain Engineer
SAIC
Chantilly, VA
…strategically proactive. This position requires an active Top Secret/SCI clearance with Polygraph. The Electronic Signal Chain Engineer directly supports the GPOC overseeing analog to…
Added 22 hours ago
Focal Plane Engineer
SAIC
Chantilly, VA
…strategically proactive. This position requires an active Top Secret/SCI clearance with Polygraph. The Focal Plane Engineer directly supports the GPOC overseeing the design and…
Added 1 day ago
Senior Cybersecurity Process Engineer
Peraton
Fort Meade, MD
Position requires an active TS/SCI clearance with polygraph.
Added 1 day ago
Sr. Linux Systems Administrator
Peraton
Annapolis Junction, MD
Active TS/SCI with current Polygraph required
Added 1 day ago
Senior Enterprise Configuration Management Process Engineer
Peraton
Fort Meade, MD
Position requires an active TS/SCI clearance with polygraph.
Added 1 day ago
Cyber Security Engineers and Integrators (team of 7)
Falls Technology
McLean, VA
Active TS/SCI with Full Scope Polygraph required. U.S. citizenship required.
Added 1 day ago
Mission Operations Integrator
Booz Allen Hamilton_United States
Arlington, VA
…eligibility requirements for access to classified information; TS/SCI clearance with polygraph is…
Added 1 day ago
Programming Planning Budget Execution Analyst
SAIC
El Segundo, CA
Bachelor’s degree in business administration or management, finance, accounting, or a related field with 18+ years of experience in the DoD Planning, Programming, Budgeting, and Execution…
Added 1 day ago
Program Control Analyst
SAIC
Chantilly, VA
Clearance to be able to remain on the program: TS/SCI with Polygraph.
Added 1 day ago
Modeling and Simulation Engineer
SAIC
El Segundo, CA
…Segundo, California. The Horizon 2 contract supports the Space Systems Command with providing Advisory and Assistance Services to program offices that acquire, deploy, and sustain national…
Added 1 day ago
Portfolio Analysis and Integration Specialist
Peraton
Bethesda, MD
Basic Qualifications:• TS/SCI with Polygraph required• Requires BS degree and 8-12 years of prior relevant experience or Masters with 6-10 years of prior relevant experience. However, an…
Added 1 day ago
Systems Engineer, TS/SCI w/Poly
Peraton
Annapolis Junction, MD
Ability to obtain a TS/SCI security clearance with a polygraph.
Added 1 day ago
Jr. Java Cloud Developer
Peraton
Annapolis Junction, MD
Active TS/SCI with current Polygraph required
Added 1 day ago
Help Desk Engineer
Peraton
Annapolis Junction, MD
Active TS/SCI with current Polygraph required
Added 1 day ago
Program Integrator (Skill Level 3)/ Scheduler
Strategic Analytix
Fort Meade, MD
Our talented team of industry experts provide full life cycle development and mission support with a focus in areas such as cybersecurity, systems engineering, programmatic and acquisition…
Added 1 day ago
Program Control Analyst Principal
SAIC
Chantilly, VA
Clearance to be able to remain on the program: TS/SCI with Polygraph.
Added 1 day ago
Software Engineer – Cloud & DevSecOps
Peraton
Annapolis Junction, MD
Active TS/SCI security clearance with current polygraph required
Added 1 day ago
M
Strategic Planner/Integrator
Markon
Reston, VA
- $130,000 to $150,000 USD / year
Active TS/SCI clearance with CI Polygraph required

Space Systems Integration

Software Solutions Engineer Integrator

El Segundo, CA, United States

$210,000 to $255,000 USD / year

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Job details

Pay: $210,000 to $255,000 USD / year
Posting language: English
Posted: Oct 26, 2026

Original job description

Space Systems Integration (SSI) is a fast-growing engineering company that provides aerospace solutions to a variety of government and commercial customers. Our employees are forward-thinking, self-directed individuals who are committed to solving our customers’ technical challenges.

SSI is seeking a Software Solutions Engineer Integrator for a role in El Segundo, CA.

Role and Responsibilities include:

Serve as the BMC3I software engineering and integration focal point, aligning new development, CSO-selected solutions, and modernization with Programs of Record, legacy systems, architecture, interfaces, data, infrastructure, and operational requirements.
Evaluate end-to-end solutions to determine how applications, services, data products, APIs, and platforms integrate with or replace legacy components while preserving mission continuity and interoperability.
Develop technical integration roadmaps covering modernization increments, legacy dependencies, interface transitions, risks, decision points, entrance/exit criteria, and production transition actions.
Support software architecture and design across service boundaries, APIs/interfaces, data flows, cloud/platform services, deployment patterns, and legacy-to-modern data migration and interoperability.
Collaborate with developers, architects, cybersecurity/DevSecOps teams, testers, Product and Program Managers, acquisition professionals, vendors, operators, and receiving programs to resolve integration issues and transition capabilities into operations.
Assess opportunities to refactor, rehost, replatform, replace, or retire legacy components, reduce technical debt, and move toward modular, scalable, secure, and supportable architectures.
Coordinate capabilities through assessment, prototyping, development, CI/CD, integration, testing, cybersecurity, deployment, production transition, and sustainment while maintaining configuration, release, risk, and transition traceability.
Assess integration readiness across applications, APIs, data, messaging, infrastructure, identity, cybersecurity, performance, resiliency, and mission-system interfaces, including demonstrations or operational evaluations as needed.
Apply Agile, DevSecOps, and Software Acquisition Pathway practices to support iterative delivery, automated testing, modernization, and rapid operator feedback.
Advise government leadership on architecture, modernization priorities, commercial-solution readiness, legacy transition, integration risks, sequencing, and technical tradeoffs. Support transition planning with receiving Programs of Record and follow-on acquisition activities, addressing architecture/interfaces, infrastructure, cybersecurity/accreditation, sustainment, production, contracting, funding, technical evaluations, SOWs, and transition agreements.

Required Qualifications

Bachelor's degree with 14+ years, Master's with 12+ years, or PhD with 9+ years of relevant experience in software engineering, computer science, systems engineering, architecture, integration, or related DoD mission systems.
Strong knowledge of software engineering, architecture, systems integration, APIs, data integration, testing, configuration management, and software lifecycle practices.
Experience integrating software into mission or enterprise systems with legacy applications, shared services, data dependencies, external interfaces, and operational constraints.
Ability to analyze software at the system-of-systems level and translate mission requirements into practical integration and modernization approaches.
Proficiency with Microsoft Office, Jira, Confluence, and related collaboration tools.
Active TS clearance with in-scope T5/SSBI is required, along with SCI eligibility and participation in Continuous Evaluation.
Must meet all requirements for SCI and SAP access and be willing to undergo a polygraph examination.
Travel is 25%.

Preferred Qualifications

Experience modernizing legacy DoD software through refactoring, rehosting, re-platforming, cloud migration, API enablement, data migration, service decomposition, or retirement.
Experience with cloud platforms, containers/Kubernetes, microservices, APIs, event architectures, infrastructure as code, CI/CD, observability, and secure software supply chains.
Knowledge of DoD software acquisition, including DoDI 5000.87 and the Software Acquisition Pathway, with experience supporting CSOs, OTAs, rapid prototyping, or similar approaches.
Experience transitioning commercial or non-traditional software from prototype into government architectures, production environments, and sustained operations.
Experience evaluating technical debt, dependencies, sustainment, performance, resilience, cybersecurity, and lifecycle impacts during modernization.
Strong communication skills with the ability to present architecture, integration, modernization, and technical tradeoffs to engineers and senior leaders.

Space Systems Integration provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, or any other characteristic protected by federal, state, or local laws.

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