Leidos Security Enterprise Solutions (SES) is seeking a Software Solution Architect. This role supports the design and delivery of integrated software solutions across SES’s aviation and ports & borders portfolios. The focus is on expanding, configuring and applying existing enterprise software products—such as Mezzo—to address specific customer needs and better position SES to capture new business opportunities.
This position will report to the Commercial Operations Director and play a key role in ensuring our software solutions are technically sound, scalable, and aligned with product and business objectives.
Key Responsibilities- Architect solutions using SES enterprise software platforms (e.g., Mezzo), ensuring alignment with technical and operational requirements.
- Work closely with product, engineering, and commercial operations teams to develop clear, well-scoped solution definitions.
- Create architecture diagrams, integration specifications, and solution documentation to guide implementation.
- Develop Basis of Estimates (BOEs) including resource planning and technical scope definitions (preferred).
- Contribute to Technical Readiness Reviews (TRRs) and Bid Risk Reviews (BRRs) for high-value opportunities.
- Partner with product line managers and engineering to ensure technical feasibility and consistency with platform capabilities.
- Ensure solutions adhere to Leidos SES standards for security, scalability, and maintainability.
- Bachelor’s degree in Computer Science, Engineering, or a related technical field.
- 8+ years of experience in software development, systems engineering, or technical solution architecture.
- Proven experience with enterprise software platforms and systems integration.
- Strong skills in creating architecture documentation, technical specifications, and implementation guidance.
- Ability to develop detailed BOEs and resource plans for the development, implementation and ongoing systems support of enterprise software.
- Familiarity developing and deploying solutions in a cloud environment.
- Experience with software solution design and implementation plans that include AI/ML- capability.
- Experience with enterprise data modeling and metadata governance frameworks.
- Comfortable leading solution design sessions and ensuring alignment with engineering capabilities.
- Ability to work collaboratively with cross-functional technical teams.
- Experience working directly with customers or supporting capture teams in shaping technical solutions.
- Background in pricing strategy or cost estimation, including BOEs.
- Familiarity with Leidos SES products (e.g., Mezzo) or experience in aviation/port security markets.
- Exposure to Agile and DevSecOps methodologies.
- Technical certifications (e.g., AWS Solutions Architect, TOGAF).
- Experience working within cloud-based environments, particularly AWS.
Leidos Security Enterprise Solutions develops advanced detection and automation technologies to safeguard airports, borders, and critical infrastructure around the world. This role offers a unique opportunity to apply proven enterprise software in solving real-world security challenges—while helping to shape future solutions and processes.
At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.”
If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.
Original Posting:October 20, 2025For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Top Skills
What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead.
