Lead Systems Integration Engineer - DoD/DevSecOps

accelintjobboardtest; Sterling (VA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Paid Time Off

Paid Company Holidays

Medical, Dental & Vision Insurance

401k Matching

Employee Assistance Program

Job summary

Lyntris is seeking a Lead Systems Integration Engineer for an on-site role in Sterling, VA. You will lead SIT across multiple subsystems, define test threads, and drive integration events with government stakeholders, building robust tooling and CI/CD pipelines for secure deployment.

You will guide automation, documentation, and reuse across programs while mentoring teams and ensuring compliance in classified environments. U.S. citizenship and TS/SCI clearance are required.

Qualifications

• A degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 5 years of relevant experience, or an advanced degree in a related field and a minimum of 3 years of experience
• 2+ years in a technical leadership role
• Demonstrated experience leading system integration and test efforts across multiple subsystems or external systems
• Demonstrated experience designing and building test automation frameworks, harnesses, or test utilities
• Demonstrated experience leading DevSecOps adoption in secure, regulated environments
• Experience building tooling or infrastructure for reuse across programs, teams, or product lines
• Experience working in cross-functional software development teams
• Expertise in at least one major public cloud provider (AWS or GCP)
• Experience designing, implementing, and/or supporting cloud native container orchestration platforms and technologies (Kubernetes, Istio, Helm, Podman, Docker, ArgoCD, Flux)
• Proficiency with Python and testing frameworks such as Pytest; Linux shell scripting and core CLI tooling
• Experience creating test threads, cases, and steps for SWIT and/or SIT
• Active and transferable TS/SCI U.S. government issued security clearance
• U.S. citizenship is required

Responsibilities

• Own system integration testing (SIT) across multiple internal subsystems and external systems, identifying issues related to interface contracts, data exchange, timing, usability, functionality, safety, and security
• Define and maintain SWIT and SIT test threads, cases, and steps, and drive traceability from requirements through verification evidence
• Lead integration events with external system owners and government stakeholders, including dry runs, formal test events, and site acceptance activities
• Triage integration defects to root cause across system boundaries and drive them to closure with the responsible team
• Design, build, and maintain test tooling as a first-class engineering product: simulators, stubs, message injectors, data generators, log analyzers, and results reporting
• Develop automated test suites and utilities, and keep them current as subsystems and external interfaces evolve
• Build and maintain automated regression capability integrated into CI/CD, so integration failures surface early
• Establish standard test reporting and evidence artifacts that satisfy both engineering and compliance customers
• Design integration and test capabilities for reuse so tooling, harnesses, pipeline templates, and deployment patterns can be adopted by other programs

Skills

Leadership

System integration

DevSecOps

Test automation

Python

Cloud (AWS/GCP)

CI/CD

Cross-functional teamwork

Education

Bachelor's degree in STEM

Advanced degree in related field

Tools

Kubernetes

Docker

Istio

Helm

ArgoCD

Flux

Pytest

Python

Job description

Lyntris is seeking a Lead Systems Integration Engineer for an on-site role in Sterling, VA. You will lead SIT across multiple subsystems, define test threads, and drive integration events with government stakeholders, building robust tooling and CI/CD pipelines for secure deployment.

You will guide automation, documentation, and reuse across programs while mentoring teams and ensuring compliance in classified environments. U.S. citizenship and TS/SCI clearance are required.