Senior DevSecOps Engineer

Accelint Holdings LLC; Sterling (VA); On-site; USD 140,000 - 186,000; Full time

Benefits offered by this job

Paid Time Off

Paid Holidays

Insurance (Medical, Dental & Vision)

401k Matching

Employee Assistance Program

Job summary

Lyntris seeks a Senior DevSecOps Engineer to join our Sterling, VA site, focused on integrating, testing, and deploying DoD software systems. This hands-on role builds automation, CI/CD pipelines, tooling, and secure environments to support reliable software delivery across programs.

The position requires active TS/SCI clearance, U.S. citizenship, and experience with container tech, cloud, and secure, regulated environments; on-site work five days a week at a secure facility.

Qualifications

• STEM degree and 5+ years of relevant experience.
• Hands-on experience integrating and testing software across subsystem or external system boundaries.
• Experience with test automation and tooling beyond writing tests.
• Experience in secure or regulated software environments.
• Experience with cross-functional software development teams.
• Cloud experience (AWS or GCP).
• Container/orchestration experience (Kubernetes, Docker, etc).
• Proficiency with Python and Pytest; Linux CLI tooling.
• Active and transferable TS/SCI U.S. government-issued security clearance required; U.S. citizenship.

Responsibilities

• Integrate and test software subsystems and external systems.
• Write and maintain test threads, cases, and steps; ensure traceability.
• Participate in integration events with stakeholders and government partners.
• Triage defects across system boundaries to root cause and drive closure.
• Build and maintain test tooling and automation.
• Extend CI/CD regression coverage and provide test reports.
• Collaborate across teams and document processes.

Skills

DevSecOps

CI/CD

Python

Docker

Kubernetes

Security clearance

Education

STEM degree

Advanced degree

Tools

GitLab

Artifactory

Pytest

Linux shell

Docker

Kubernetes

Podman

Helm

ArgoCD

Flux

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.

Job Description

Senior DevSecOps EngineerFull timeOnsite

The Senior DevSecOps Engineer is a hands‑on engineering role focused on integrating, testing, and deploying complex DoD software systems. This engineer builds and maintains the automation, CI/CD pipelines, tooling, and secure environments that support reliable software integration and delivery. Working across subsystem and external system boundaries, the Senior DevSecOps Engineer develops automated testing and integration capabilities that identify issues early and creates reusable engineering solutions that can scale across programs and mission environments.

This position supports the Beyond Line of Sight (BLOS) Engagement Controller and Manager (BECM) program and requires solid software integration engineering, test engineering, and DevSecOps experience in classified, highly regulated environments.

Work Environment

Full‑time on‑site in Sterling, VA, split between standard office space and SCIF work. Flexible daily start and end times, coordinated with program needs and facility access windows.

Duties & Responsibilities

System Integration & Test

• 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

Test Tooling & Automation

• 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 rather than at test events
• Produce consistent test reporting and evidence artifacts for both engineering and compliance consumers

Reusable Engineering

• Build tooling and test assets as versioned, documented components rather than one‑off scripts, so they hold up when another program picks them up
• Flag duplicated effort across teams and help consolidate it into shared components
• Contribute to common conventions for interface documentation, test structure, and environment configuration

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, including disconnected and classified enclaves
• Implement security and compliance controls inside the pipeline rather than at the end of the cycle

Collaboration & Documentation

• Work with cross‑functional teams to define, design, and implement new software and its verification approach
• Write and maintain documentation for integration, test, and deployment processes
• Share integration and test practices with less experienced engineers on the team
• Stay current with developments 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
• 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 at least one major public cloud provider (AWS or GCP preferred)
• Experience with container and orchestration technologies (e.g., Kubernetes, Docker, Podman, Helm, ArgoCD, Flux)
• Proficiency with Python and testing frameworks such as Pytest; Linux shell scripting and core CLI tooling (grep, awk, sed, ssh, scp); 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)
• Experience with data integration and streaming technologies, including NiFi, Kafka, and REST APIs
• Experience mentoring engineers or leading a small technical effort
• 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 to lift up to 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 will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment. To learn more about the security clearance process please access this link.

EEOC & Know Your Rights

Lyntris companies 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.

• Paid Time Off
• Paid Company Holidays
• Medical, Dental & Vision Insurance
• Optional HSA and FSA
• Base and Voluntary Life Insurance
• Short Term & Long-Term Disability Insurance
• 401k Matching
• Employee Assistance Program

The pay range for this role is:140,200 - 185,700 USD per year(Sterling, VA)