Sr. Solution Train Engineer TS/SCI Polygraph

COMFORT SYSTEMS; Maryland; On-site; USD 131,000 - 237,000; Full time

Benefits offered by this job

Paid time off

11 paid holidays

401(k) with company match

Flexible schedules

Education and training support

Job summary

Leidos is seeking a Sr. Solution Train Engineer to support SAFe-based Solution Train and ART operations on a large mission-critical program.

You will assist Release Train Engineers, drive impediment removal, and coordinate program-wide software and architecture releases in a DevOps environment. The role requires a Bachelor’s degree in a technical field, 12+ years of experience, 7+ years leading teams, 5+ years in large software efforts, and TS/SCI with Polygraph clearance.

Qualifications

• Bachelor's degree in a technical field required.
• 7+ years leading teams or projects.
• 5+ years supporting large software development, systems, integration, and test efforts.
• Experience as Scrum Master and Release Train Engineer/Solution Train Engineer.
• Experience with SAFe and PI Planning.
• Experience with agile tools (Jira, VersionOne, Rally, IBM ELM).

Responsibilities

• Facilitate Solution Train and ART operations.
• Work with SAFe governance stakeholders on program execution.
• Support work allocation across ARTs.
• Monitor performance, remove impediments, and drive improvement.
• Coordinate schedules and program-wide software and architecture releases.
• Lead PI Planning and related events.
• Facilitate Scrum of Scrums and cross-team collaboration.
• Track feature and capability execution through program metrics.
• Brief customers on progress, testing, deployment, and release readiness.
• Coach teams, Scrum Masters, Product Owners, and leaders in agile practices.

Skills

SAFe leadership

Strong communication

Scrum Master

Release Train Engineer

Agile coaching

Education

Bachelor's degree in a technical field

Tools

Jira

VersionOne

Rally

IBM ELM

Job description

Description

Leidos has a new and exciting opportunity for a Sr. Solution Train Engineer in our Intel Sector's Cyber & Analytics Business Area (CABA) . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos , we offer competitive benefits , including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

An experienced, energetic Sr. Solution Train Engineer (STE) is needed to support Solution Train and Agile Release Train (ART) operations for a large mission-critical program using the Scaled Agile Framework (SAFe). The program includes one Solution Train and multiple ARTs. The selected individual will support the Release Train Engineers (RTEs) in monitoring performance, managing change, resolving impediments, and driving continuous improvement. The ideal candidate will bring significant experience leading agile teams and be prepared to step into a Solution Train Engineer leadership role on a large, complex program with demanding interface, performance, and security requirements. Strong communication skills, flexibility, and persistence are essential. Program execution follows DevOps best practices and uses mature development, test, and production environments. The program uses Behavior Driven Development (BDD) and test automation tools alongside a full suite of team collaboration tools. Leidos is the prime contractor providing systems engineering, development, test, integration, and operational support. The program focuses on introducing new technology and advanced capabilities while sustaining an ongoing mission and operational system.

Primary Responsibilities

• Facilitate Solution Train and ART operations across Solution Train and ARTs.
• Work with SAFe governance stakeholders on program execution.
• Support work allocation and resource assignment across ARTs.
• Monitor performance, remove impediments, and drive improvement.
• Coordinate schedules and program-wide software and architecture releases.
• Lead PI Planning, including logistics and technical preparation.
• Lead Solution Train planning events and pre- and post-planning meetings.
• Facilitate cross-team collaboration through Scrum of Scrums and related forums.
• Track feature and capability execution through program metrics.
• Brief customers on progress, testing, deployment, and release readiness.
• Assess skill needs and support staffing actions with leadership.
• Provide input on resourcing to address critical bottlenecks.
• Coach teams, Scrum Masters, Product Owners, and leaders in agile practices.
• Promote teamwork to achieve PI goals.
• Guide teams toward greater agile maturity.
• Support Communities of Practice and Built-In Quality practices.

Basic Qualifications

• Bachelor's degree and at least 12 years of relevant experience. A degree is required (preferably in a technical field). Additional relevant experience may be substituted for a degree.
• At least 7 years of experience leading teams or projects.
• At least 5 years of experience supporting large software development, systems, integration, and test efforts.
• Demonstrated work experience as a Scrum Master.
• Demonstrated work experience as a Release Train Engineer or Solution Train Engineer.
• Demonstrated work experience applying SAFe and executing PI Planning.
• Experience with agile tools such as Jira, VersionOne, Rally, or IBM ELM.
• Ability to explain technical concepts to technical and non-technical audiences.
• Experience working on agile software teams.
• Experience working with external stakeholders, including government representatives.
• Experience briefing leadership and customers on status and progress.
• Ability to thrive in a fast-paced, cross-functional environment.
• Strong written, verbal, and interpersonal communication skills.
• Strong time management and issue triage skills, and strong attention to detail and task completion.
• Clearance Required: Must have TS/SCI with Polygraph.

Preferred Qualifications

• Prior experience as a Solution Train Engineer.
• Significant experience in software development, test, or systems engineering.
• Extensive experience working with multi-disciplinary development teams.
• Scaled Agile certification, such as SAFe Agilist or SAFe RTE.
• Experience across the software development lifecycle – as a developer, tester, system engineer, etc.
• Experience with test automation, test-driven development, continuous integration, and continuous deployment to support Built-In Quality.

At Leidos , the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

September 8, 2026

For 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.

Pay Range:

Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.