Jobs in the United States

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Added 12 mins ago
Senior DevOps Engineer
Bigbear.ai
Washington
TS/SCI clearance with current CI polygraph (required).
Added 1 hour ago
Software Development Engineer (TS/SCI)
Vantor Services Inc.
Herndon, VA
US citizenship and a current TS/SCI clearance (with willingness to get a CI Polygraph).
Added 3 hours ago
Systems Engineer
Radiance Technologies, Inc.
Beavercreek, OH
Radiance Technologies is an employee-owned company with benefits that are unmatched by most companies in the Dayton OH area. Employee ownership, generous 401K, full…
Added 3 hours ago
Systems Software Engineer
DAn Solutions
Washington, DC
REQUIRES AN ACTIVE/EXISTING TS/SCI WITH CI POLYGRAPH
Added 3 hours ago
Senior DevOps Engineer – Cloud Infrastructure & Core Services
DAn Solutions
Washington, DC
REQUIRES AN ACTIVE/EXISTING TS/SCI WITH CI POLYGRAPH
Added 6 hours ago
DevSecOps Engineer - TS/SCI with Polygraph
GD Information Technology, Inc.
United States
Transform technology into opportunity as a DevSecOps Engineer at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your engineering career.
Added 22 hours ago
Machine Learning Engineer (TS/SCI)
Vantor Services Inc.
Herndon, VA
US citizenship and a current TS/SCI clearance (with willingness to get a CI Polygraph).
Added 23 hours ago
A
DevOps Engineer
AnaVation
Chantilly, VA
- $92,905.44 to $218,324.12 USD / year
This position requires an active Top Secret (TS) clearance and the ability to obtain SCI access with a CI polygraph. This position is on-site in Chantilly, VA.
Added 1 day ago
Cleared - Cyber Security Engineer
Noblis
Bethesda, MD
Noblis is seeking a cleared Cyber Security Engineer to support our customer in Bethesda, MD. SETA
Added 1 day ago
M
Senior Systems Engineer
Markon
McLean, VA
- $155,000 to $185,000 USD / year
An active TS/SCI clearance with Full Scope Polygraph (FSP) is required to be considered for this role.
Added 1 day ago
DevOps Engineer
CACI International
Denver, CO
Minimum Clearance Required to Start: TS/SCI with Polygraph
Added 1 day ago
Engineer Principal – Embedded Software
BAE Systems
Boulder, CO · Westminster, CO · Broomfield, CO
…Space & Mission Systems (SMS) is looking to expand our team with a talented and energetic software engineer focused on delivering high-quality, embedded satellite software and associated…
Added 1 day ago
Test Engineer SME
Ideal Innovations
Bethesda, MD
This Test Engineer SME will provide technical expertise with developing and executing automated testing scripts as part of a tailored SAFe Agile DevSecOps pipeline. As a Test Engineer on…
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
Cyber Exploiter/Vulnerability Assessment Engineer (TS/SCI with Poly Required)
GCI
Chantilly, VA
…building and maintaining trusted and reliable partnerships with our customers and…
Added 1 day ago
Junior Software Engineer
GRVTY
Sterling, VA · Aurora, CO
This is a hands-on technical role ideal for a software engineer with strong foundational skills who is eager to expand their knowledge of modern backend systems, containerized cloud…
Added 1 day ago
SENIOR SYSTEMS ENGINEER - PLATFORM/INFRASTRUCTURE (CI POLYGRAPH)
NorthHill Technology
Sterling, VA
NorthHill Technology Resources has a need for an a Senior Systems Engineer- Platform/Infrastructure to support a Federal Program in Sterling, VA. This is a direct-hire role with our client,…
Added 1 day ago
SS
Software Solutions Engineer Integrator
Space Systems Integration
El Segundo, CA
- $210,000 to $255,000 USD / year
Collaborate with developers, architects, cybersecurity/DevSecOps teams, testers, Product and Program Managers, acquisition professionals, vendors, operators, and receiving programs to…
Added 1 day ago
SS
Software Solutions Engineer
Space Systems Integration
El Segundo, CA
- $210,000 to $255,000 USD / year
Collaborate with developers, engineers, architects, cybersecurity and DevSecOps teams, testers, Product and Program Managers, vendors, operators, and legacy-system owners to resolve…
Added 1 day ago
Palantir Engineer, Lead
BOOZ, ALLEN & HAMILTON, INC.
Springfield, VA
As an AI and ML Engineer on our National Security team, you'll work closely with your clients to understand their questions and needs and then dig into their data-rich environments to find…
Added 1 day ago
Sr Systems Engineer – Integration and Test
RTX
United States
We have an exciting opportunity for Systems Engineer – Integration and Test supporting one of our premier programs within Raytheon, an RTX Business, in the Space Intelligence, Surveillance,…
Added 2 days ago
Senior Information Systems Security Engineer
Cornerstone Defense
United States
Collaborate with DevSecOps, system engineering, IT, and development teams to embed security into the lifecycle
Added 2 days ago
SOFTWARE ENGINEER - HPC/LLMs - 7+ yrs of Experience - TS/SCI w/Poly clearance is required - ID - 540
Halogen Engineering Group, Inc
Annapolis Junction, MD
Software Engineer - HPC/LLMs - 7+ yrs of Experience - TS/SCI w/Poly clearance is required
Added 2 days ago
W
Software Engineer (SWE) Skill Level 2
Wyetech
Annapolis Junction, MD
- $86.14 to $108.87 USD / hour
Required Clearance: Active TS/SCI with Full Scope Polygraph
Added 2 days ago
Cybersecurity Engineer (ISSO)
AnaVation
San Antonio, TX
…factories and enterprise cloud environments. The Cybersecurity Engineer will serve as an embedded cybersecurity professional supporting one or more mission agile teams, working directly…

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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