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Added 5 hours ago
Senior Cloud Platform and DevSecOps Engineer - TS/SCI with Polygraph
GD Information Technology, Inc.
United States
Implement Azure platform services, landing-zone components, network integration, policy, logging, identity hooks, key/secrets management, and workload hosting patterns under the Principal…
Added 1 day ago
RC
Part Time Software Platform Engineer Co-Op (Remote)
RTX Corporation
richardson, TX
- Part-time
Raytheon is hiring SW Platform Engineer Co-Ops as a part of the Raytheon Cooperative Education Program (Co‑op). This is a part-time, remote role targeting senior or postgraduate students…
Added 1 day ago
RC
Part Time Software Platform Engineer Co-Op (Remote)
RTX Corporation
aurora, CO
- Part-time
Raytheon is hiring SW Platform Engineer Co-Ops as a part of the Raytheon Cooperative Education Program (Co‑op). This is a part-time, remote role targeting senior or postgraduate students…
Added 2 days ago
Senior DevOps Engineer
Resource Management Concepts, Inc.
Charleston, SC
RMC is seeking a Senior DevOps Engineer to build, automate, and maintain the cloud infrastructure and secure deployment environments supporting mission applications and core services. This…
Added 2 days ago
Platform DevOps Engineer, Senior
Booz Allen Hamilton_United States
Chantilly, VA
As a senior platform DevOps engineer at Booz Allen, you can use your technical skills to affect mission-forward change. On our team, you’ll hone your skills using the latest cloud…
Added 3 days ago
Senior DevOps Engineer
Bigbear.ai
Washington
Advise architecture and platform strategy - recommend technology choices, capacity planning, and operational procedures that leverage cloud capabilities (AWS/Azure) while satisfying DIAs…
Added 3 days ago
Senior DevOps Engineer – Cloud Infrastructure & Core Services
DAn Solutions
Washington, DC
DAn Solutions is seeking a Senior DevOps Engineer to design, automate, deploy, and maintain secure cloud infrastructure supporting mission applications and enterprise services.
Added 4 days ago
Cyber Exploiter/Vulnerability Assessment Engineer (TS/SCI with Poly Required)
GCI
Chantilly, VA
Assist senior staff with testing, findings spreadsheet development, and reporting
Added 4 days ago
SENIOR SYSTEMS ENGINEER - PLATFORM/INFRASTRUCTURE (CI POLYGRAPH)
NorthHill Technology
Sterling, VA
We are looking for a Platform or Infrastructure Systems Engineer (Senior) experienced in configuring, deploying, and maintaining infrastructure tools and COTS applications as Infrastucture…
Added 4 days ago
SS
Software Solutions Engineer Integrator
Space Systems Integration
El Segundo, CA
- $210,000 to $255,000 USD / year
Support software architecture and design across service boundaries, APIs/interfaces, data flows, cloud/platform services, deployment patterns, and legacy-to-modern data migration and…
Added 4 days ago
SS
Software Solutions Engineer
Space Systems Integration
El Segundo, CA
- $210,000 to $255,000 USD / year
Evaluate end-to-end software solutions to determine how new applications, services, data products, APIs, and platform capabilities integrate with or replace legacy components while…
Added 12 days ago
DevSecOps Engineer
BOOZ, ALLEN & HAMILTON, INC.
Washington, DC
The preferred candidate is a hands-on senior engineer who can bridge database engineering, API development, DevSecOps automation, and secure platform architecture. This person should be…
Added 13 days ago
MG
Senior Systems Engineer (IBM ELM) - TS/SCI w CI Poly
Modern Government Solutions
Sterling, VA
- Up to $200,000 USD / year
Modern Government Solutions (MGS) is seeking a Senior Systems Engineer with hands-on IBM Engineering Lifecycle Management (ELM) experience to support a mission-critical engineering…
Added 13 days ago
MG
Senior Systems Engineer (Citrix) - TS/SCI w CI Poly
Modern Government Solutions
Sterling, VA
- $160,000 to $200,000 USD / year
MGS is seeking a Sr. Systems Engineer (Citrix) to lead the design, deployment, and optimization of an enterprise Citrix Virtual Desktop Infrastructure (VDI) environment within a secure,…
Added 13 days ago
MG
Senior DevSecOps Engineer - TS/SCI w CI Poly
Modern Government Solutions
Sterling, VA
- Up to $200,000 USD / year
Modern Government Solutions (MGS) is seeking a Senior DevSecOps Engineer to design, implement, and sustain CI/CD pipelines, test automation frameworks, and DevSecOps workflows within secure…
Added 13 days ago
MG
Senior DevSecOps Engineer - TS/SCI w CI Poly
Modern Government Solutions
Sterling, VA
- Up to $200,000 USD / year
MGS is seeking a Senior DevSecOps Engineer to design, implement, and sustain CI/CD pipelines, automation frameworks, and DevSecOps workflows within secure cloud environments in support of…
Added 13 days ago
Lead, Software Engineer
L3Harris Technologies
Melbourne, FL · Rochester, NY · Chantilly, VA
L3Harris Technologies is seeking a Senior DevSecOps Engineer to help modernize and scale secure software delivery for mission-focused programs within the Space Systems sector. This role…
Added 15 days ago
DevSecOps Engineer
BOOZ, ALLEN & HAMILTON, INC.
Washington, DC
The preferred candidate is a hands-on senior engineer who can bridge database engineering, API development, DevSecOps automation, and secure platform architecture. This person should be…
Added 15 days ago
Senior DevSecOps Engineer
CACI International
Chantilly, VA
As part of the Clairvoyant program, you will build and support the backbone of a mission-critical, cloud-native ecosystem - a scalable software-hosting and data-dissemination platform…
Added 15 days ago
Cloud Engineer Senior
General Dynamics Information Technology
St. Louis, MO
Deliver simple solutions to complex problems as a Cloud Engineer, Sr. at GDIT. Here, you’ll tailor cutting-edge solutions to the unique requirements of our clients. With a career in…
Added 16 days ago
Product Owner (Hybrid) - 30265
Huntington Ingalls Industries
Augusta, GA
Enlighten is looking for an experienced Product Owner to directly support operations and assist in growth strategy with special emphasis on U.S. Army Cyber Command (ARCYBER) and the…
Added 16 days ago
ETL Engineer
Cornerstone Defense
Herndon, VA
Currently seeking a detail-oriented and experienced ETL Engineer to join our data engineering team. The ideal candidate will be responsible for designing, building, and maintaining data…
Added 16 days ago
BA
DevOps Engineer, Mid
Booz Allen Hamilton
Aurora, CO
- $40,123 USD / year
As a senior platform DevOps engineer at Booz Allen, you can use your technical skills to effect mission-forward change.On our team, you'llhone your skills using the latest cloud…
Added 17 days ago
Senior Software Systems Engineer (L3)
Power3 Solutions
Annapolis Junction, MD
We are seeking a hands-on Senior Software Systems Engineer to support mission-critical programs in Annapolis Junction, MD. This role focuses on driving software-heavy systems from concept…
Added 17 days ago
ES
Senior Kubernetes Platform Systems Engineer
Endepth Solutions
Laurel, MD
- $195,000 to $255,000 USD / year
We’re seeking a Senior Kubernetes Platform Systems Engineer to support our U.S. Government program(s) in Laurel, MD. The Senior Kubernetes Platform Systems Engineer will be responsible for…

Space Systems Integration

Software Solutions Engineer

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 for a role in El Segundo, CA.

Role and Responsibilities include:

Serve as a software engineering and integration focal point for BMC3I, aligning new development, commercial solutions, and modernization with existing Programs of Record, legacy systems, architecture, interfaces, data services, infrastructure, and operational requirements.
Evaluate end-to-end software solutions to determine how new applications, services, data products, APIs, and platform capabilities integrate with or replace legacy components while preserving mission continuity and interoperability.
Develop technical integration roadmaps defining modernization increments, legacy dependencies, interface transitions, data migrations, risks, decision points, and production transition activities.
Support software architecture and design, including capability decomposition, service boundaries, APIs and interfaces, data flows, event-driven integration, cloud/platform services, deployment patterns, and distributed-system dependencies.
Collaborate with developers, engineers, architects, cybersecurity and DevSecOps teams, testers, Product and Program Managers, vendors, operators, and legacy-system owners to resolve cross-system integration issues.
Assess modernization 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 development, CI/CD, integration, testing, cybersecurity assessment, deployment, production transition, and sustainment while maintaining configuration and release traceability.
Assess integration readiness across applications, APIs, data models, messaging, infrastructure, identity, cybersecurity, observability, performance, resiliency, and mission-system interfaces.
Plan data migration and interoperability between legacy and modernized systems, including schema mapping, transformation, interface compatibility, authoritative data sources, synchronization, and sequencing.
Apply Agile, DevSecOps, and Software Acquisition Pathway practices to support iterative delivery, automated testing, CI/CD, platform modernization, and rapid operator feedback.
Use Jira, Confluence, and related tools to maintain traceability of requirements, architecture decisions, interfaces, technical debt, defects, risks, dependencies, test findings, releases, and modernization status.
Advise government leadership on architecture, modernization priorities, legacy transition, integration risks, sequencing, and technical tradeoffs across BMC3I.

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, API/interface design, data integration, testing, configuration management, and software lifecycle management.
Experience integrating new software into enterprise or mission systems containing legacy applications, shared services, data dependencies, external interfaces, and operational constraints.
Ability to analyze software at the system-of-systems level and translate mission and program requirements into practical integration and modernization approaches.
Proficiency with Microsoft Office, Jira, Confluence, and related collaboration and documentation 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, RESTful APIs, event architectures, infrastructure as code, automated CI/CD, observability, and secure software supply chains.
Knowledge of DoD software acquisition, including the Software Acquisition Pathway and DoDI 5000.87, with experience supporting rapid software delivery within a Program of Record.
Experience integrating commercial or non-traditional software into government architectures, legacy systems, and operational environments.
Demonstrated ability to lead cross-functional integration across software, systems engineering, cybersecurity, test, platform, operational, and government teams.
Experience evaluating technical debt, dependencies, sustainment, performance, scalability, resilience, cybersecurity, and lifecycle impacts in modernization strategies.
Strong communication skills with the ability to present complex architecture, modernization, integration, 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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