Senior DoD Systems Integration Engineer (Onsite)

accelintjobboardtest; Sterling (VA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Paid Time Off

Medical, Dental & Vision Insurance

401k Matching

Employee Assistance Program

Job summary

Lyntris is seeking a Senior Systems Integration Engineer for a full-time, on-site role in Sterling, VA. You will lead integration, testing, and deployment of DoD software systems, building automation, CI/CD pipelines, and secure infrastructure to support reliable delivery in classified environments.

The position requires strong experience in software integration, test engineering, DevSecOps, and collaboration with cross-functional teams, with a US citizenship and active clearance.

Qualifications

• Hands-on experience integrating and testing software across subsystem or external system boundaries.
• Experience building test automation, harnesses, or test utilities, not only authoring test cases against existing tooling.
• Experience working in secure or regulated software environments.
• Experience working in cross-functional software development teams.
• Working knowledge of AWS or GCP cloud providers.
• Experience with container/orchestration technologies (Kubernetes, Docker, Podman, Helm, ArgoCD, Flux).
• Proficiency with Python and testing frameworks; Linux shell scripting and core CLI tooling; CI/CD tooling (GitLab, Artifactory).
• Experience creating test threads, cases, and steps for SWIT and/or SIT.
• Active TS/SCI U.S. government clearance; U.S. citizenship.

Responsibilities

• Integrate and test software subsystems and external systems, identifying issues related to interface contracts, data exchange, timing, usability, functionality, safety, and security.
• Write and maintain SWIT and SIT test threads, cases, and steps, and support traceability from requirements through verification evidence.
• Participate in integration events with external system owners and government stakeholders, including dry runs, formal test events, and site activities.
• Triage integration defects across system boundaries, isolate root cause, and work with the responsible team to drive closure.
• Build and maintain test tooling: 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 change.
• Extend automated regression coverage inside CI/CD so integration failures surface early.
• Produce consistent test reporting and evidence artifacts for engineering and compliance.

Skills

Software integration

Test automation

DevSecOps

Python

Linux scripting

CI/CD pipelines

Cloud (AWS/GCP)

Kubernetes

Docker

Podman

Helm

ArgoCD

Flux

GitLab

Artifactory

Swagger

Cameo

Kafka

REST APIs

Education

STEM degree (B.S. or higher)

Tools

Kubernetes

Docker

Podman

Helm

ArgoCD

Flux

GitLab

Artifactory

Swagger

Cameo

Kafka

REST APIs

Job description

Lyntris is seeking a Senior Systems Integration Engineer for a full-time, on-site role in Sterling, VA. You will lead integration, testing, and deployment of DoD software systems, building automation, CI/CD pipelines, and secure infrastructure to support reliable delivery in classified environments.

The position requires strong experience in software integration, test engineering, DevSecOps, and collaboration with cross-functional teams, with a US citizenship and active clearance.