Lead Systems Integration Engineer

Accelint Holdings LLC

Sterling (VA)

On-site

USD 152,000 - 198,000

Full time

7 days ago

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Benefits offered by this job

Paid Time Off

Paid Company Holidays

Medical, Dental & Vision Insurance

Optional HSA and FSA

Life Insurance

Disability Insurance

401k Matching

Employee Assistance Program

Job summary

Lyntris in Sterling, VA is seeking a Lead Systems Integration Engineer to drive the integration, testing, and automation of complex DoD software systems onsite.

The role requires strong experience in software integration, test engineering, automation, and DevSecOps, with a focus on scalable, secure delivery in classified environments. Candidates must possess TS/SCI level clearance and U.S. citizenship.

Qualifications

Degree in Science, Technology, Engineering, or Mathematics (STEM) with 5+ years of relevant experience, or an advanced degree with 3+ years of experience.
Experience leading system integration and test efforts across multiple subsystems or external systems.
Proficiency in design and build of test automation frameworks and CI/CD pipelines.

Responsibilities

Own system integration testing across multiple subsystems and external systems.
Define and maintain test threads, cases, and steps with traceability to requirements.
Lead integration events with external stakeholders including dry runs and formal test events.
Mentor engineers on integration engineering, test design, and automation practices.

Skills

System integration

Test automation

DevSecOps

Python

CI/CD

Cloud (AWS/GCP)

Linux shell scripting

Docker/Kubernetes

Team leadership

Security clearance

Education

STEM degree

Advanced degree

Tools

Docker

Kubernetes

Istio

Helm

Podman

ArgoCD

Flux

GitLab

Artifactory

Job description

About this position

NOTE: This position will be onsite at a facility in Sterling, VA

**This position requires anactive U.S. national security clearance. To learn more about the security clearance process please access thislink.

Lyntrisis a defense technology company that connects sensing to action across the connected battlespace.Lyntrisbrings together the talents ofAccelintand Vitesse teams under one mission, with each contributing deepexpertisewithin their domain.Combining differentiated hardware,softwareand missionexpertise, Lyntris helps customers sense threats, make sense of complex conditions and act with greater speed,precisionand confidence in contested environments.

Lyntris supports U.S. and allied defense organizations across every branch — including Navy, Army, Air Force, SpaceForceand allied partners — spanning strategic,operationaland tactical missions and every domain: Space, Air, Land, Sea and Cyber. With more than 200 active defense programs,Lyntrisworks at every level of the mission, from national command authority to the tactical edge.

Solutions are designed by operators who understand the mission, engineered for the conditions that degrade or defeat standard systems, and built on an open, modular architecture that integrates into existing programs without requiring them to start over.Lyntrismoves faster than the traditional defense cycle — with integrated design, build and test capabilities in-house — and delivers systems that sustain and endure long after initial fielding.

Lead Systems Integration Engineer

Full time

Onsite

NOTE: This position will be onsite at a facility in Sterling, VA

**This position requires anactive U.S. national security clearance. To learn more about the security clearance process please access thislink.

The Lead Systems Integration Engineer is a strategic and hands‑on technical leader responsible for integrating, testing, and advancing complex DoD software systems. This role leads system integration efforts across subsystem and external system boundaries, while developing the automation, tooling, CI/CD pipelines, and secure infrastructure needed to support reliable integration and deployment. The Lead Systems Integration Engineer provides technical direction, mentors engineering teams, and establishes reusable integration, test, and deployment practices that improve consistency, efficiency, and scalability across programs.

This position supports the Beyond Line of Sight (BLOS) Engagement Controller and Manager (BECM) program and requires strong experience in software integration, test engineering, automation, and DevSecOps. The role is responsible for supporting integration and verification activities, developing automated testing and integration capabilities, and maintaining the technical documentation needed to support formal test events and delivery in classified, highly regulated environments.

Work Environment: This is a full‑time, on‑site role in Sterling, VA, with work split between standard office space and SCIF environments. Some flexibility in daily working hours is available and will be coordinated around program requirements and facility access windows.

Duties & Responsibilities

System Integration & Test

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

Test Tooling & Automation Development

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 rather than at test events

Establish standard test reporting and evidence artifacts that satisfy both engineering and compliance consumers

Cross‑Program Scalability

Design integration and test capabilities for reuse, so tooling, harnesses, pipeline templates, and deployment patterns built for BECM can be adopted by adjacent programs with minimal rework

Identify duplicated effort across programs and consolidate it into shared, versioned, documented components

Define and champion common standards for interface documentation, test structure, and environment configuration across the engineering organization

Serve as a technical point of contact for other program teams adopting these capabilities

Infrastructure & DevSecOps

Use container technologies to configure and deploy software to lab, integration, and customer site environments

Build and maintain automation pipelines, artifact management, and environment provisioning for both connected and disconnected/classified enclaves

Embed security and compliance controls into the pipeline rather than bolting them on at the end

Collaboration & Documentation

Collaborate with cross‑functional teams to define, design, and implement new software and its verification approach

Write and maintain comprehensive documentation for integration, test, and deployment processes

Mentor engineers on integration engineering, test design, and automation practice

Stay current with industry trends in software integration, test engineering, and secure delivery

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, not just authoring test cases against existing tooling

Demonstrated experience leading DevSecOps adoption in secure, regulated environments

Experience building tooling or infrastructure intended for reuse across more than one program, team, or product line

Experience working in cross‑functional software development teams

Expertise in at least one major public cloud provider (AWS or GCP preferred)

Experience designing, implementing, and/or supporting cloud native container orchestration platforms and technologies (e.g., Kubernetes, Istio, Helm, Podman, Docker, ArgoCD, Flux)

Proficiency with Python and testing frameworks such as Pytest; Linux shell scripting and core CLI tooling (grep, awk, sed, ssh, scp); automation pipeline development using tools such as GitLab and Artifactory

Experience creating test threads, cases, and steps for SWIT and/or SIT

Active and transferable TS/SCI U.S. government issued security clearance required prior to start date

U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Preferred Qualifications

Experience testing distributed, real‑time, or message‑driven systems where timing and ordering matter

Experience building interface simulators or emulators for systems unavailable in the lab

Experience with test reporting and results aggregation standards (e.g., JUnit XML, CTRF, Allure)

Experience with behavior‑driven test formats (Gherkin, Cucumber) as a shared artifact between engineering and stakeholders

Experience with data integration and streaming technologies, including NiFi, Kafka, and REST APIs

Experience with documentation tools like Swagger

Experience with modeling tools like Cameo

AWS Certified Solutions Architect Associate certification

Certified Kubernetes Administrator certification

DoD IAT Level II security certification (Security+ CE, GSEC, SSCP, or CCNA Security)

Physical Requirements

Prolonged periods sitting at a desk and working on a computer. Must be able tolift upto 15 pounds at times. This position has an on‑site requirement of 5 days per week at a secure controlled information facility in Sterling, VA.

Clearance Requirements

Some positions willrequire access to U.S. National Security information. Positionsthat require this access will berequiredto receive andmaintaina U.S. government personnel security clearance (PCL). In order toqualify for this position, the candidate must be a US Citizen and either currentlypossessthis National Security eligibility or be able to complete the investigation application process with a favorable determination andmaintainthat eligibility throughout their employment. To learn more about the security clearance process please access thislink.

EEOC & Know Your Rights

Lyntriscompanies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, status as a protected veteran or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs. For more information about your rights, please review the "Know Your Rights" poster from the Equal Employment Opportunity Commission (EEOC). Know your Rights:EnglishSpanish

Pay Scales & Benefits

The listed pay scale reflects the broad, minimum to maximum, pay scale for this position for the location for which it has been posted and is not a guarantee of compensation or salary. Other compensation considerations may include, but are not limited to, job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, or other applicable factors.

Benefits include…