UNKNOWN

ADAPTED_NOW

We are seeking a Full Stack Software Developer to develop, create, maintain, and write/code new (or modifies existing) computer applications, software, or specialized utility programs. Prefer an accredited Computer Science, Cyber Security, Information Technology, Software Engineering, Information Systems, or Computer Engineering degree; or a degree in a Mathematics or Engineering field.

YEAR

CALIBRE Systems, Inc. (CALIBRE) is an employee-owned management consulting and digital transformation company supporting government and industry. CALIBRE is committed to the success of our clients, and delivers enduring solutions that solve management, technology, and program challenges. CALIBRE is a leading provider of solutions serving clients in the public and private sectors - Defense, Federal / Civil and Commercial corporations. Our employees - operating from our Alexandria, Virginia headquarters, five regional offices across the U.S. and in two foreign countries - are committed to delivering high quality solutions. 
CALIBRE and its subsidiaries are an Equal Opportunity Employer and supports transitioning service members, veterans and individuals with disabilities. We offer a competitive salary and full benefits package. To be considered, please apply via our website at <a href="https://urldefense.com/v3/__http:/www.calibresys.com/__;!!D1XWH5In!Qkx82SYK92oKjJ7-Frwd6F0l0fYP5PYZB0F9SIM2mYfqkXijbHOeiSxf36SM6DfGX2nbkigGxcvTEcNqxqMyCsgPBQ$">www.calibresys.com</a>. Come join our dynamic team. #CALIBRECareers

Calibre Systems

Software Developer Intermediate

PART_TIME

TEMPORARY

CONTRACTOR

POSTING_API

HOUR

As a nationally and locally certified Minority Business Enterprise (MBE), Cynet Systems is committed to helping organizations build high-performing teams while empowering professionals to grow rewarding careers. The FEP Operations Center is seeking a senior or lead mainframe z/OS Systems Engineer to support the mainframe platform and environments and help in the maintenance, transformation, and modernization of the FEPOC mainframe technology stack.

CYNET SYSTEMS

Lead Mainframe z/OS Systems Engineer

Description: The assigned resource will be responsible for developing the AI program focused on automating requirements and test case preparation, utilizing Visual Studio Code, Python, Copilot AI, and other tools provided by the postal service. • Design and develop test automation scripts using Selenium with Python, leveraging available AI models and LLMs to accelerate script creation, maintenance, and self healing.

PLANIT Group is a fast-growing global technology consulting firm dedicated to delivering innovative solutions to our clients that drive results. We collaborate with our partners and customers to help them improve performance, efficiency, and quality. Our team delivers innovative solutions and services - including management consulting, systems integration, ERP solutions, enterprise architecture, communications, and infrastructure services. We focus on delivering value and driving increased productivity and efficiencies for our clients’ mission. Our extensive experience in the Federal, Defense, Intelligence, State, Local, Healthcare and Commercial industries delivers proven results and accelerated benefits.
Clients engage PLANIT for our expertise, innovative approach, and our exceptional team. We promote a creative, client-centric work environment and culture, striving to provide challenging and rewarding opportunities for our company’s employees and partners. Integrity and innovation are the core principles of our company philosophy. Our customers engage us to create solutions to complex mission challenges, and PLANIT delivers. For more information, visit http://www.planitgroup.com/. Innovation. Integration. Integrity.

PlanIT Group

Senior Software (AI) Test Engineer

The ideal candidates will have strong experience building automated testing frameworks, integrating testing into CI/CD pipelines, and validating Java-based microservices across cloud and containerized environments. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

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Jobot

Senior QA / Test Automation Engineer

However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. Experience testing networked applications and troubleshooting TCP/IP and UDP communications using packet-analysis tools such as Wireshark.

VETS, Inc

Software Integration & Test Engineer

Leoforce-Top Echelon

Experience with AI-assisted engineering practices and tools such as GitHub Copilot, Codex, or Claude Code, as well as conducting efficient and accurate code reviews of AI-generated code. This role works as part of the technical test engineering team and will be focused on testing enterprise and informatics software systems to support cancer trials and research.

Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives. 
Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom.

System One

Software Test Engineer (hybrid)

Reporting to the Head of Software Engineering, the Principal Software Engineer sets the technical direction for how software gets built at HITT — architecting the practice’s first AI-native applications, establishing the platform and paved-road tooling every team will use, and writing production code every day alongside AI coding agents. The Principal Software Engineer will help recruit engineers into a lean, agile, AI-augmented team and will train HITT’s existing developers in AI-enabled methods — through pairing, code review, workshops, and reference implementations — raising the technical bar for the entire practice.

HITT Contracting

Senior Manager, Software Engineering

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. If Interested, Please Apply or Email Me Your Resume Directly at: https://jobot.com/apply/mechanical-energy-engineer-building-systems-mep-consulting-engineers-hybrid/1760989861?utm_source=Monster.

Mechanical Energy Engineer (Building Systems/MEP Consulting Engineers) Hybrid

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. 4-6+ years of Mechanical/HVAC Systems Design experience, Perform Calculations, select equipment, and design systems (HVAC Systems, EM&CS Systems, Plumbing Systems, Fire Protection Systems).

Mechanical Engineer - (Design-Build/Government Projects/Security Clearance)

The ideal candidate brings deep hands-on experience with Cisco Unified Communications Manager (CUCM), advanced network infrastructure, and Tier 3/Tier 4 technical support, along with the ability to lead complex engineering initiatives. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.

Senior Network Engineer - Voice (CCNP Collaboration)

Technical Leadership & Team Management: Lead, mentor, and manage a team of approximately five DevSecOps engineers, providing technical direction, prioritizing work, conducting code and architecture reviews, and fostering a collaborative, high-performing "one team" culture while remaining an active hands-on contributor. Hands-On Engineering: Serve as the technical lead for complex infrastructure, automation, and deployment efforts by designing solutions, troubleshooting production issues, developing infrastructure and pipeline code, and supporting implementation across the DevSecOps toolchain.

Credence

Senior DevSecOps Engineer

Credence Mgmt Solutions

FEED

This role develops and executes test strategies, manages testing activities, and collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Developers, UX/UI Designers, and stakeholders to deliver secure, reliable, accessible, and high-performing applications. The Software Test Lead is responsible for leading the Quality Assurance (QA) and testing efforts for enterprise web applications, ensuring software quality through comprehensive manual and automated testing.

NuAxis Innovations

Software Test Lead

Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. For decades, they have specialized in engineering, construction, design-build, prefabrication, and facility services across sectors including healthcare, data centers, aviation, education, government, and large-scale commercial projects.

Project Engineer II

Monitoring, Observability & Incident Response: Implement monitoring, logging, tracing, dashboards, and alerting across cloud infrastructure, Kubernetes, applications, and platform services using technologies such as AWS CloudWatch, Security Hub, GuardDuty, Splunk/ELK, Prometheus, Grafana, OpenTelemetry, or comparable solutions. Collaboration & Knowledge Sharing: Work closely with software engineers, AI engineers, cybersecurity teams, cloud engineers, architects, and mission stakeholders to integrate security, automation, and platform capabilities throughout the software development lifecycle.

Platform Engineer - DevSecOps

Build and operate GenAI security systems: design, build, deploy, and maintain production services and APIs that detect and mitigate risks such as prompt injection, jailbreak attempts, sensitive-data exposure, and unauthorized or unexpected tool/agent behavior — spanning LLMs, agents, tools, APIs, MCP servers, plugins, and enterprise data sources. Understanding of GenAI-specific security risks (prompt injection, jailbreaking, sensitive-data exposure, insecure output handling, unauthorized tool use, data exfiltration) and hands-on experience implementing controls such as input validation, output filtering, policy enforcement, access control, audit logging, rate limiting, and secrets management.

Visa has been a proud sponsor of the Olympic Games since 1986. Sport unites people, communities and nations. It enriches people’s lives and creates economic development opportunities. In today’s world, where brand and trust mean so much, the Olympic Games reflect those equities found at Visa — worldwide acceptance, reliability, versatility and leadership. Sponsoring the Olympic Games makes good business sense for Visa and our clients.

Visa

Sr. SW Engineer - AI Security

AWS Data centers have multiple components such as generators, uninterruptable power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers [air-cooled and water-cooled], pumps, cooling towers, heat exchangers, CRAHs, air economizers, etc. - Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or an equivalent engineering science plus 5+ years of relevant controls experience, OR 10+ years of relevant controls experience in lieu of a degree.

Amazon Data Services, Inc.

Controls Engineer, ADC

appcast_amazon

Regional Engineers work with the engineering community and technical agencies in support of Lane’s marketing efforts and promote Lane Enterprises and its products to agencies, engineers, contractors and other customers. The Regional Engineer will service Northern Virginia, Richmond, Tidewater, Maryland, and parts of NE North Carolina markets & support surrounding areas as needed.

Lane Enterprises Inc

Engineer

JobTarget

Cherokee Strategic Edge is seeking a Data Engineer to support Defense analytical requirements with enhanced scientific research, and contribute to the DIE’s integrated all-source analysis of foreign defense capabilities for warfighters, Defense planners and policymakers. • Bachelor's degree in computer science, Computer Engineering, Information Technology or related STEM degree program, or four years of equivalent level experience as a client Server Engineer.

Cherokee Federal

Data Engineer - Senior

Appcast Exclusive 1

You’ll develop robust data pipelines, implement modern data lakehouse architectures, and collaborate across engineering, data science, and stakeholder teams to deliver secure, high-performance data capabilities that advance federal missions. Build and maintain ETL/ELT pipelines integrating structured, semi-structured, and unstructured data across AWS services such as S3, Glue, RDS, Redshift, Lambda, and related cloud data platforms.

AWS Databricks Engineer

Lead or support complex test operations by coordinating with flight operations, ground support crews, air traffic control, range personnel, and other external stakeholders as required to maintain safe execution, strong team communication, and day-to-day technical alignment. L3Harris Agile Development Group (ADG) is seeking a Flight Test Engineer to join the Flight Test and Evaluation team in support of developmental and operational test activities for unmanned aircraft and missile systems.

Software Engineer Jobs in Manassas, VA

Software Developer Intermediate Calibre Systems

Lead Mainframe z/OS Systems Engineer CYNET SYSTEMS

Senior Software (AI) Test Engineer PlanIT Group

Senior QA / Test Automation Engineer Jobot

Software Integration & Test Engineer VETS, Inc

Software Test Engineer (hybrid) System One

Senior Manager, Software Engineering HITT Contracting

Mechanical Energy Engineer (Building Systems/MEP Consulting Engineers) Hybrid Jobot

Mechanical Engineer - (Design-Build/Government Projects/Security Clearance) Jobot

Senior Network Engineer - Voice (CCNP Collaboration) Jobot

Senior DevSecOps Engineer Credence

Software Test Lead NuAxis Innovations

Project Engineer II Jobot

Platform Engineer - DevSecOps Credence

Sr. SW Engineer - AI Security Visa

Controls Engineer, ADC Amazon Data Services, Inc.

Engineer Lane Enterprises Inc

Data Engineer - Senior Cherokee Federal

AWS Databricks Engineer Credence

Lead Flight Test Engineer L3Harris Technologies

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