4,555 Results for

Systems Software Developer Jobs in Reston, VA

Jobs

Arlington, VA

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Bachelor's degree in Computer Science, Software Engineering, Information Technology, Cybersecurity, Data Science, Information Systems, or related technical field from an ABET accredited or CAE designated institution; Master's degree preferred. This position serves as a technical leader in the modernization of legacy DoD systems, providing advanced expertise in cloud-native development, architecture design, and team leadership.

15 days ago

Vienna, VA

Full time

The ideal candidate will have a passion for technology, a strong desire to learn, and the ability to work collaboratively with our experienced development team. This internship provides an excellent opportunity for hands-on experience in software development within the context of government projects.

30+ days ago

Chantilly, VA

Intern

p>With the experience of hundreds of thousands of successful implementations, including macro, DAS, Small Cells, and Wi-Fi, the world’s leading network operators and OEMs trust our knowledge and experience to plan, perform, troubleshoot, and implement an array of technologies and solutions. This is a unique opportunity for a college student to gain hands-on experience working on an established, high-scale project, where you will contribute to real-world features that power global wireless networks.

30+ days ago

Reston, VA

div>Software Developer (Microservices) (Remote): Description: The Microservices Developer will be responsible for designing, building, and maintaining scalable backend services that power the platform's RESTful APIs. This role involves developing production-grade microservices using Java 21 and Java 25, implementing clean and consistent API contracts, and ensuring secure, reliable integration with internal and external systems.

3 days ago

Reston, VA

Remote

A degree from an accredited College/University in Software Engineering, Computer Science, or related discipline is preferred; Able to perform all functional duties independently; Experience training/mentoring less experienced personnel; Experience authoring or contributing to software-related documentation such as requirements specifications, design documents, technical manuals, and user manuals; Excellent communication skills. Expertise in Struts , Spring MVC, Git Bash, Java25, WebSphere , Tomcat, GitHub , GitHub Copilot, VersionOne , JUnit, JDBC, Maven ,ALM, UFT.

7 days ago

Rockville, MD

Remote

$75,000–$110,000 / year

p>Savantage Solutions is seeking a Oracle APEX Developer to join our core engineering team supporting Altimate, a proprietary Federal Financial Management System deployed for federal agency clients. Factors considered when extending an offer include but are not limited to, job responsibilities, education, experience, knowledge, skills, certifications, seniority, performance, and alignment with market data.

1 day ago

Reston, VA

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Fullstack Java Developer (Remote): Description: ===================================================================================. Please ensure cities/states are listed for each role, gaps in employment are explained and your agency's name is not listed on the resume.

7 days ago

Washington DC, DC

Remote

By driving the development of intelligent, connected devices, the Senior Full Stack IoT Developer directly supports strategic initiatives in product innovation, operational efficiency, and customer experience. Customers’ emergency preparedness needs are met via Cardio Partners’ nationwide CPR training courses and state-of-the-art program management services.

2 days ago

Washington, DC

Remote

$90.94–$90.94 / hour

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Work at the direction of the program manager to support the full lifecycle development of custom Oracle Applications, primarily using the Oracle APEX toolset.

Provide support with PL/SQL, Java, Windows PowerShell, and Unix shell scripting with familiarity with built-in PLSQL packages and procedures.

Today

Washington DC, DC

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2+ year of in-depth working knowledge of ASP.NET Core using C#.NET, Angular/React, HTML5, CSS, and MS SQL Server, Identity.

Plan, design, build, test, deploy and maintain highly scalable web-based services using modern technologies.

30+ days ago

Washington DC, DC

Remote

$123,136–$202,488 / year

p>This is a great opportunity to join a fast-paced agile team that works with the latest technologies and patterns, asynchronous programming, and MVVM to design and develop next-gen Esri software.

Design, develop, and build software components, frameworks and SDKs for other engineering teams and external developers consuming our API.

2 days ago

Arlington, VA

Desired: Multiple cloud platform certifications at professional level (AWS Solutions Architect Professional, Azure Solutions Architect Expert, or Google Cloud Professional Cloud Architect), Kubernetes CKA/CKAD, Docker Certified Associate, specialized security certifications.

Bachelor's degree in Computer Science, Software Engineering, Information Technology, Cybersecurity, Data Science, Information Systems, or related technical field from an ABET accredited or CAE designated institution; Master's degree preferred.

15 days ago

MONTGOMRY VLG, MD

$165,000–$185,000 / year

With deep expertise in cloud-first architectures, automation, DevSecOps, virtualization, reliability engineering, and large-scale systems integration, we help organizations modernize infrastructure, improve operational efficiency, and support mission-critical environments where performance, security, and resiliency are essential. 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.

3 days ago

Gaithersburg, MD

$140,000–$165,000 / year

2 days ago

Chantilly, VA

$106,500–$196,500 / year

li style="font-family:'verdana' , 'geneva' , sans-serif;font-size:14pt;color:black">Assist in systems/software engineering functions, to include creation of data flow diagrams, interface control documents, perform trade studies, and Static Application Security Testing (SAST) for Application Security and Development Secure Technical Implementation Guide (STIG) compliance using tools such as Fortify/Coverity and Gitlab as part of a DevSecOps Continuous Integration/Continuous Deployment (CI/CD) Pipeline, and generation of summary reports. Please click here for the E-Verify Poster in English or Spanish.

2 days ago

Washington, DC

$135,000–$165,000 / year

You will operate at the intersection of federal financial accounting and modern low-code/AI tooling, independently building reports and queries, validating financial data, and supporting agency stakeholders without routing every request through senior technical staff. This is a growth-track role built for an early-career accounting professional ready to move beyond traditional financial operations into AI-assisted research, self-service data analysis, and citizen development.

1 day ago

Washington DC, DC

This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, UX/UI Designers, Solution Architects, Back-End Developers, and QA Engineers to deliver secure, scalable, and intuitive user interfaces that meet business, technical, and accessibility requirements. Participate in Agile development activities including backlog refinement, sprint planning, code reviews, sprint demonstrations, and continuous integration.

5 days ago

Herndon, VA

$110,000–$165,000 / year

9 days ago

Arlington, VA

$120,000–$150,000 / year

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 you have a solid grounding in software engineering, continuous delivery, and computer science, and are looking for a career opportunity to grow and leverage those skills to the fullest while working on cutting edge technologies – Here is the place to be!

1 day ago

Washington DC, DC

This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Solution Architects, UX/UI Designers, QA Engineers, and DevSecOps teams to deliver end-to-end solutions across the full software development lifecycle.

The Senior Full Stack Developer is responsible for designing, developing, integrating, and supporting secure, scalable, and high-performing enterprise web applications using modern cloud-native technologies.

5 days ago

Washington DC, DC

p class="MsoNormal">The Senior AI Developer serves as the lead technical resource responsible for designing, developing, integrating, and supporting enterprise Artificial Intelligence (AI) and Machine Learning (ML) solutions that enhance business applications, automate processes, and improve operational efficiency. This role collaborates with Product Owners, Federal Project Managers (FPMs), Business Analysts, Subject Matter Experts (SMEs), Solution Architects, developers, and stakeholders to deliver secure, scalable, and responsible AI solutions that align with business and mission objectives.

5 days ago

McLean, VA

p>The Qlik Developer will collaborate with government stakeholders, functional analysts, data engineers, and development teams to design and implement data visualization solutions that improve operational visibility, reporting accuracy, and decision-making across the enterprise. This role requires experience developing scalable Qlik applications, integrating multiple data sources, and supporting Agile software development initiatives in a secure DoD environment.

6 days ago

Vienna, VA

Remote

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Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed applications with the organization's Core Banking platform.

Experience developing web services, microservices, RESTful APIs, and designing implementing common patterns and REST principles.

Today

Vienna, VA

Remote

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Collaborate with Core Banking, testing, middleware, and platform teams to manage dependencies, mitigate risks, and meet aggressive delivery timelines.

Today

McLean, VA

Remote

Collaborate with clients, solution architects, product owners, UX designers, business analysts, platform engineers, and development teams to deliver resilient software products that meet functional and non-functional requirements. • Experience with AWS Lambda, API Gateway, Step Functions, EventBridge, EKS/Kubernetes, RDS PostgreSQL, MongoDB, Redis, Memcached, Elasticsearch, Docker, and modern monitoring/observability tools.

8 days ago

Washington DC, DC

Remote

$150,000–$160,000 / year

The developer collaborates with cross-functional teams to deliver reliable, high-performance solutions, while also supporting testing, deployment, troubleshooting, and ongoing system enhancements in a secure, mission-critical environment. As a trusted partner for more than 60 federal clients, Cherokee Federal LLCs are focused on building a brighter future, solving complex challenges, and serving the government’s mission with compassion and heart.

2 days ago

Washington DC, DC

Remote

$100,000–$130,000 / year

It serves VA Loan Guaranty Service staff and VA-approved loan services, enabling compliance reporting, case management, financial tracking, and decision support to help VA protect Veterans, minimize losses, and ensure program integrity.

Bachelor’s degree + 5 years of Salesforce or relevant software development experience, OR Associate’s degree + 7 years of Salesforce or relevant software development experience, OR High School Diploma/GED + 9 years of Salesforce or relevant software development experience.

2 days ago

Washington DC, DC

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.

4 days ago

Arlington, VA

Work with cross-functional teams, including architects, product managers, and other developers, to deliver high-quality software solutions. • Work closely with cross-functional teams to build scalable, high-performance applications leveraging cloud native and cloud agnostic services.

Today

22102, VA

Remote

p>System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.

Design, build, test, and deploy full-stack applications using Python, Django, and modern JavaScript frameworks.

Today

Washington DC, DC

The company operates through several market-leading companies including Tri-anim Health Services, the largest specialty distributor of respiratory products, Bound Tree Medical, the largest supplier of EMS products, and Cardio Partners, a full Sudden Cardiac Arrest Solution provider,

We’re building the future of intelligent systems—and we’re looking for an AI Developer to help lead the charge.

Sarnova is the leading national specialty distributor of health care products in Emergency Medical Services (EMS) and Respiratory Markets and is the industry leader in Revenue Cycle Management within Emergency Medical Services (EMS).

2 days ago

McLean, VA

Remote

The Senior Full Stack Developer will collaborate with client stakeholders, solution architects, product owners, UX designers, platform engineers, business analysts, and cross-functional technical teams to design, build, test, and deploy resilient software solutions.

The ideal candidate has strong hands-on experience with Python and JavaScript, modern web frameworks, RESTful APIs, microservices, cloud-native development, and AWS-based application delivery.

8 days ago

Washington, DC

p>We are seeking an experienced Senior Database Developer to support federal agency operations with hands-on expertise in relational databases, data warehousing, and data governance. As a trusted partner for more than 60 federal clients, Cherokee Federal LLCs are focused on building a brighter future, solving complex challenges, and serving the government’s mission with compassion and heart.

2 days ago

Falls Church, VA

$90,000–$100,000 / hour

Responsibilities

Support the delivery of client solutions using advanced analytics, exploratory data analysis, data wrangling, and ETL processes within a SAFe Agile environment.
Derive insights from data and build robust data applications using analytics and coding tools (e.g., Python, R, Alteryx, SQL, SAS).

6 days ago

Washington DC, DC

5 days ago

Merrifield, VA

$42–$42 / hour

Seeking knowledge of Adobe Target, Adobe Analytics, taxonomy, digital asset management, content management systems (CMS), search engine optimization (SEO), and online/digital metrics using industry best practices. Collaborate with Marketing and Digital staff and other internal business units/vendors to ensure timely/accurate implementation of digital content enhancements/requirements to support business needs and member experience.

11 days ago

Vienna, VA

Remote

$40–$60 / hour

p>System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.

Utilize hands-on expertise in Java and related frameworks to build scalable solutions.

8 days ago

Reston, VA

$100,600–$199,000 / year

Collaboration skills will be required to work closely with other engineering teams to ensure services and systems are highly stable, meet performance Service level agreements (SLA), and meet the expectations of internal and external customers and users. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate.

2 days ago

Merrifield, VA

li>Experience with Test processes, open-source test frameworks, test design strategies, writing test cases, and automating tests in Java with frameworks like JUnit/TestNG, Selenium, JMeter and Appium.

Set up, maintain, and perform test automation frameworks on multiple application platforms, such as Mobile, Desktop, and Web, and building test scenarios and acceptance tests.

Today

Vienna, VA

$97,240–$162,240 / year

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Design, implement, and maintain high-speed CI/CD pipelines using GitHub Actions/Azure DevOps for cloud-native workflows and Jenkins for complex, cross-platform on-premises build automation. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.

2 days ago

Vienna, VA

$97,240–$162,240 / year

Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. Your work will help developer communities re-imagine the capabilities of location-aware software applications that enable real-world improvements.

2 days ago

Quantico, VA

li>Integrates models and simulations into larger system architectures and supports Marine Corps Warfighting Laboratory (MCWL) Wargaming Division efforts for interoperability testing and model orchestration. As a Simulation Developer, you will serve as a trusted advisor to our customers, ensuring the technical architecture of wargames is robust and reliable while directly shaping the tools used to prepare Marines for the future fight.

22 days ago

Sterling, VA

Full time

Job title: Python DeveloperLocation: Washington, DCClient: GSA Data.govClearance: Public Trust ClearanceOverview: We are looking for a Senior Backend Engineer to support federal software engineering efforts, primarily focused on operations and maintenance of Data.gov applications. The ideal candidate has strong Python and Flask experience, and is comfortable working in a dockerized development environment.

27 days ago

Washington DC, DC

The engineer will be responsible for building and maintaining comprehensive products, ensuring seamless integration from the database layer to the user interface, with a primary focus on back-end development and some front-end responsibilities (80% back end, 20% front end).

• Design and execute software projects that are crucial to Abnormal’s success, in collaboration with a team of engineers, through conception, design, implementation, launch, and operation.

2 days ago

McLean, VA

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. The disclosed range takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to, geographic location, relevant education, qualifications, certifications, experience, skills, seniority, performance, sales or revenue-based metrics, and business or organizational needs.

30+ days ago

McLean, VA

30+ days ago

Washington DC, DC

Remote

p>This leader will balance long-term architectural rigor with near-term product delivery, ensuring Samsara’s mobile apps are scalable & performant while providing intuitive & delightful experiences for customers operating in the physical world.

Working at Samsara means you’ll help define the future of physical operations and be on a team that’s shaping an exciting array of product solutions, including Video-Based Safety, Vehicle Telematics, Apps and Driver Workflows, and Equipment Monitoring.

2 days ago

Gaithersburg, MD

Remote

$135,000–$150,000 / year

3 days ago

Bethesda, MD

$131,300–$237,350

May 19, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

2 days ago

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Systems Software Developer Jobs in Reston, VA

Software Developer Bowhead / UIC Technical Services

Jr. Software Developer Company Confidential

Software Developer (Full Stack/Backend) Intern TeleWorld Solutions

Software Developer (Microservices) PlanIT Group

Software Developer PlanIT Group

Senior Oracle Apex Developer Savantage Solutions

IT - Software Developer IV PlanIT Group

Senior Full Stack IoT Software Developer Sarnova

Software Development V (SME Oracle APEX Developer) System One

Software Developer NuAxis Innovations

Sr. Software Developer - C#/WPF for UI/UX Development Esri

Senior Applications Developer Bowhead / UIC Technical Services

Senior Software Engineer (C++ / Java) Jobot

Sr. Software Engineer Jobot

Senior Specialist, Information Security Systems Engineering L3Harris Technologies

Federal Financial Management System Savantage Solutions

Front-End Developer NuAxis Innovations

System Integration & Test Engineer Jobot

Software Engineer Jobot

Senior Full Stack Developer NuAxis Innovations

Senior AI Developer NuAxis Innovations

Mid-Level Qlik Developer Credence

.NET Mainframe Developer System One

Java Mainframe Developer System One

Lead Full-Stack Developer System One

Senior MuleSoft Developer - Remote Cherokee Nation Businesses

Salesforce Developer - Remote Cherokee Nation Businesses

Software Test Lead NuAxis Innovations

Java Developer (Secret Clearance) System One

Full-Stack Developer System One

AI Developer Sarnova

Senior Full Stack Developer System One

Senior Database Developer Cherokee Nation Businesses

Data Developer System One

System/DevSecOps Engineer NuAxis Innovations

Web Content Developer System One

Java Developer - 100% REMOTE System One

Software Engineer II - CTJ - Top Secret Microsoft

Software Development Engineer (SDET) System One

Software Development Engineer II - CI/CD & Platform Automation Engineer (DevOps) Esri

Software Development Engineer II - Front End Esri

Simulation Developer MANTECH

Python Developer ADG TECH CONSULTING, LLC

Software Engineer II, Messaging Security Products Abnormal

ServiceNow Developer Capgemini Government Solutions LLC

Senior ServiceNow Developer Capgemini Government Solutions LLC

Manager, Software Engineering - Mobile Platform Samsara

Senior QA Lead / Senior QA Analyst Jobot

Enterprise Architect/Systems Engineer Leidos

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