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Software Developer Systems Software Jobs in McLean, VA, US
740+ software developer systems software jobs from 300+ companies hiring in McLean, VA, US.
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Appian Developer, Senior - Consultant
Rockville or Bethesda
$30-$50/hr OnsiteAll Commitments Available
7+ YOESenior Appian Developer with 7+ years experience; Salesforce backend; MySQL/MariaDB; full SDLC; Appian development; system integrations; Agile/hybrid delivery; accessibility and security considerations.
Appian, Salesforce, MySQL, MariaDB, ServiceNow, GitHub
2mo
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Power Systems Advisory Engineer
Herndon, Virginia, United States
RemoteFull Time
6+ YOESix or more years in electric utilities; experience with electric cooperatives preferred; PE license preferred; engineering modeling software proficiency; client-facing advisory experience.
engineering modeling software, Microsoft Office
1mo
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Sr Developer
Washington, District of Columbia, United States
OnsiteContract
8+ YOE Eight+ years of Oracle EBS (R12.x) development experience; strong Oracle Loans module; AWS and Red Hat; federal financial systems experience; SAFe Agile; Jira/Confluence; SLA/USSGL knowledge.
Oracle EBS, PL/SQL, Forms, Reports, OAF, Workflow Builder, Web ADI, Jira, Confluence, Oracle SQL Developer, AWS, SVN, Git
2w
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Forward Deployed Engineer
Austin or Remote or Reston
HybridFull Time
6+ YOE6+ years in software/data/ML; degree in CS/Engineering/Math/Physics/Data Science; hands-on with AI/ML and LLM frameworks; production systems; multi-cloud; containerization; Python/Java/TypeScript; travel 25–75%; client collaboration.
PyTorch, Hugging Face, LangChain, vLLM, Docker, Kubernetes, Python, Java, TypeScript
4d
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Computer Systems Engineer/Architect
Washington, District of Columbia, United States
$140k-$150k/yr OnsiteFull Time
Experience in software QA, data engineering, and IV&V within AWS/Linux; SQL, Python scripting; XML/JSON/CSV data handling; strong communication and independent collaboration.
AWS, Linux, CLI, GitHub, Python, SQL, Oracle, PostgreSQL, Iceberg, XML, JSON, CSV, Delimited, Fixed-width
3w
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RPA Developer (Robotic Process Automation, Associate)
Arlington, Virginia, United States
$122k-$131k/yr HybridFull Time
7+ YOE7+ years of relevant experience; knowledge of federal financial, accounting, procurement processes; 1-3 years in systems development and automated financial systems analysis; 1 year developing bots using RPA tools; strong communication and analytical skills.
UiPath, Automation Anywhere, BluePrism, Kofax, SQL, NoSQL, C#, Visual Basic, Python, Javascript, Java, .NET, REST APIs
2mo
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PeopleSoft Developer
Alexandria, Virginia, United States
RemoteFull Time
7+ YOE7+ years PeopleSoft development; BS in Computer Science or Information Systems; US citizenship; DoD Public Trust or ability for DoD Secret clearance; Security+ or IAT Level 2; strong PeopleTools/PeopleCode/Integration Broker; experience across HCM, Financials, Campus Solutions; able to lead and collaborate.
PeopleTools, PeopleCode, Application Engine, Integration Broker, Component Interface, SQL, BI Publisher, SQR, PS/Query, REST, SOAP, Web Services, Oracle Cloud Infrastructure, AWS
2mo
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Firmware Engineer
Fredericksburg, Virginia, United States
OnsiteFull Time
10+ YOEDesign and develop embedded firmware for thermal control systems; Bachelor's in engineering; 10+ years experience; C/C++ on embedded; Linux; TCP/IP, I2C, SPI; hardware drivers.
C, C++, Linux, Qt, TCP/IP, I2C, SPI, RS-232, ADC, DAC, PWM, Debian, WebIQ, C#, Visual Studio
3w
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RPA Developer (Robotic Process Automation, Associate)
Arlington, Virginia, United States
$122k-$131k/yr HybridFull Time
7+ YOE7+ years relevant experience; federal process knowledge; 1-3 years in systems development or automated financial analysis; 1 year developing RPA bots with UiPath/Automation Anywhere/Blue Prism/Kofax; strong analytical and communication skills.
UiPath, Automation Anywhere, Blue Prism, Kofax, SQL, NoSQL, C#, VB, Python, JavaScript, Java, .NET, REST APIs
3mo
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Android Developer
Chantilly, Virginia, United States
OnsiteFull Time
Proficient in C/C++, Python; embedded systems; Android/Linux kernel vulnerability research; knowledge of Android internals; security clearance required.
C/C++, Python, Embedded Systems, Android kernel, Linux kernel, Makefile, ADB, Network protocols
1w
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AI Developer
McLean, Virginia, United States
$145k-$185k/yr RemoteFull Time
8+ YOESenior AI/ML engineer with 8+ years in AI/ML, backend systems, and production-grade AI apps; strong leadership and client-facing skills.
PyTorch, TensorFlow, Hugging Face Transformers, LangChain, LlamaIndex, AWS, Azure, GCP, Databricks ML, NVIDIA DLI
2mo
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Full Stack Application Developer - Clearance Required
Arlington, Virginia, United States
HybridFull Time
5+ YOEFive years of full-stack development; lifecycle experience; secure coding; federal systems experience; active secret clearance.
1mo
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Missionforce - Associate Forward Deployed Engineer (FDE), Public Sector
Washington or Herndon
$96k-$177k/yr HybridFull Time
3+ YOE3-7 years software engineering or systems integration; CS background; proficiency in JavaScript/Java/Python/Apex; hands-on delivery of production solutions; AI/LLM experience; data integration/APIs; secure environment experience; travel 25-50%; US citizenship with security clearance.
JavaScript, Java, Python, Apex, Salesforce Platform, Data Cloud, LLMs, AI/ML
2w
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Angular Frontend Web Developer - Contingent
McLean or North America
RemoteFull Time
5+ YOE5 years frontend web development; BS in CS/IT or 3 extra years; Angular 12+, TypeScript, HTML5, CSS3; RESTful APIs; WCAG/508; unit/integration tests; CI/CD; Design System usage.
Angular, TypeScript, HTML5, CSS3, REST, Figma, Design System, Jasmine, Karma, Jest, GitLab CI, SonarQube, aXe, pa11y, WAVE, Playwright, Cypress, Selenium, Jira, Confluence
1mo
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Lead AI/ML Engineer: Hybrid in Minnesota or DC, Remote elsewhere
Minneapolis or Washington DC
$113k-$193k/yr HybridFull Time
8+ YOE8+ years in production software; 3+ years as technical lead; 5+ years Python; experience with ML/NLP libraries and production deployments via Spring Boot; Azure stack; LLM/agent systems.
Python, PyTorch, Hugging Face, scikit-learn, Spring Boot, Azure, Azure OpenAI, Azure Functions, Event Hubs, Cognitive Search, Cosmos DB, LangChain, AutoGen, Semantic Kernel
2mo
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Full Stack Application Developer - Clearance Required
Arlington, Virginia, United States
HybridFull Time
5+ YOE5 years full stack development; SDLC; secure coding; code reviews; troubleshoot defects; experience with Federal financial systems; active Secret clearance.
4h
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Test Engineer
Bluemont, Virginia, United States
HybridFull Time
5+ YOE5+ years of experience testing systems across Agile/DevSecOps; manual and automated testing; CI/CD collaboration.
Selenium, UFT, SoapUI, JMeter, LoadRunner, Jira, ALM, Xray, Confluence
1w
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ENGINEER/SCIENTIST
Dahlgren, Virginia, United States
$144k-$197k/yr OnsiteFull Time
Experience in software architecture and development for complex systems; security clearance Secret; senior- or expert-level engineering/science leadership for weapon-system software.
Software architecture, Systems design, Simulation, Testing, Requirements engineering
4d
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DevOps Engineer
Columbia, Maryland, United States
$135k-$160k/yr OnsiteFull Time
6+ YOE6+ years in DevOps or systems engineering; Kubernetes expertise; Ansible automation; CI/CD pipelines; containerization; offline/air-gapped environments; TS clearance preferred.
Kubernetes, Ansible, GitLab CI, GitHub Actions, Docker, KubeVirt
2w
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Senior Palantir / Maven Systems Engineer / Architect
Herndon, Virginia, United States
OnsiteFull Time
8+ YOE8+ years in software or systems engineering; experience with large-scale distributed data platforms; cloud-native architectures; Kubernetes; DoD programs; Palantir Foundry/Gotham; active Secret clearance; eligible TS/SCI.
Palantir Foundry, Palantir Gotham, Kubernetes
1mo
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Windows CNO Developer
Arlington, Virginia, United States
$60k-$180k/yr OnsiteFull Time
7+ YOEActive TS/SCI clearance; 7–10+ years in low-level or systems programming on Windows; proficiency in C/C++, Python, and assembly; experience with reverse engineering tools; strong Windows internals knowledge.
IDA Pro, Ghidra, WinDbg, x64dbg, Visual Studio, Git, CMake, Python, C/C++, Assembly
9h
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Design Engineer (Senior)
Washington, District of Columbia, United States
RemoteFull Time
Experience building data-intensive apps; design systems; React/Next.js; Tailwind; CSS animations; CI/CD; documentation and collaboration.
React, Next.js, Tailwind CSS, CSS, WebGL, Paper, Unicorn Studio, GitHub Actions
1mo
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Senior Consultant, Full Stack Engineer - Digital & Insights in United States, District of Columbia, Washington
Washington, District of Columbia, United States
$77k-$118k/yr HybridFull Time
3+ YOE3+ years in distributed systems, full stack web development, and client-facing technical work.
Terraform, Docker, Kubernetes, AWS, Python, Spark, React, AI/ML platforms
3w
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Windows CNO Developer (BZ)
Dulles, Virginia, United States
OnsiteFull Time
7+ YOE7-10+ years in low-level or systems programming; TS/SCI clearance; strong C/C++, Windows kernel experience; reverse engineering and tooling proficiency.
IDA Pro, Ghidra, WinDbg, x64dbg, C/C++, Python, Visual Studio, CMake, Git
2mo
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Senior Platform Engineer
Arvada or Los Angeles or San Francisco or Seattle or Washington
$145k-$186k/yr HybridFull Time
3+ YOE3+ years in reliability, systems, DevOps, infrastructure, or platform engineering; Bachelor's degree; ability to obtain security clearance; ITAR eligibility.
Kubernetes, Terraform, Python, New Relic, DataDog, Splunk, AWS CloudWatch, GitHub Actions, Auth0, Okta, Git, VPN, NLB/ALB, TLS, CDN
21h
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Staff Software Engineer - Data Platform
Mountain View or McLean
$218k-$260k/yr OnsiteFull Time
8+ YOE8+ years in data or distributed systems; 6+ years in Go, Python, or Java; strong data infra, event streaming, and cloud experience.
Go, Python, Java, PostgreSQL, AWS, GCP, Kafka, Google Pub/Sub, Dataflow, Airflow, Temporal, Terraform, Kubernetes, Helm
3mo
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Space RADAR Tasking Model - Principal/Sr Principal Engineer Systems
Linthicum, Maryland, United States
$105k-$158k/yr OnsiteFull Time
5+ YOEMATLAB software development and maintenance for RADAR Tasking Model; on-site in Linthicum, MD; U.S. DoD Top Secret clearance required or ability to obtain.
MATLAB, C++, Java, Jira, Confluence, Bitbucket
2w
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Senior Developer helping with Automation and AI Integration
Annapolis Junction, Maryland, United States
OnsiteFull Time
8+ YOEEight years of experience designing and implementing IT systems; automation frameworks for self-service provisioning; AI-based applications and LLMs.
AWS, AWS Bedrock, LLMs, Automation, AI, Sandbox environments
2mo
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System Engineer
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOETechnical degree with DoD/IC experience; TS/SCI with Poly; 5+ years supporting DoD/IC; ability to work as IC.
2w
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Systems Analyst
Towson, Maryland, United States
OnsiteFull Time
4+ YOEBachelor's in Computer Science or related field; 4 years experience in software development, healthcare IT, data analysis; familiarity with Workday HCM/FIN; ERP and integration experience.
Workday, SQL, SSMS, EIB, Studio, Reports
1mo
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Associate Test Engineer
Fort Meade, Maryland, United States
$60k-$67k/yr OnsiteFull Time
3+ YOEPerforms formal system testing, documents results, and supports test data; requires active Secret clearance; BA/BS with 3+ years of experience; Maryland salary range 60,451–67,444.
1mo
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Senior AI Product Engineer
McLean, Virginia, United States
OnsiteFull Time
5+ YOESenior AI product engineer with 5+ years building GenAI/LLM systems, Python, LangChain, and collaboration with design/product teams.
Python, LangChain, LlamaIndex, DSPy, LangChain, Docker, Kubernetes, AWS, Azure, GCP, Retrieval augmented generation, LLMs
2mo
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Embedded Platform Engineer
Washington, District of Columbia, United States
RemoteFull Time
3+ YOE3+ years building and operating production systems; strong scripting in Python/TypeScript; CI/CD, containers, cloud platforms; AI tooling; security/compliance awareness; eligible for U.S. Secret clearance.
Python, TypeScript, GitHub Actions, Docker, Kubernetes, Azure, AWS, GCP, JFrog, CI/CD, AI tooling
1d
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Homes.com - Machine Learning Engineer
Arlington, Virginia, United States
HybridFull Time
5+ YOE5+ years ML engineering or data science experience; 3+ years Python; experience with recommendation systems and preferably computer vision; ML fundamentals and deep learning frameworks (PyTorch or TensorFlow).
Python, PyTorch, TensorFlow, Databricks, Amazon Personalize, SageMaker, SQL, DynamoDB
1w
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Ruby on Rails Engineer
Towson, Maryland, United States
$100k-$120k/yr RemoteFull Time
5+ YOE5+ years Rails backend experience; data integrations; financial/accounting systems (NetSuite a plus); ACH payments; OOP; testing; MVC/REST; PostgreSQL/MySQL; AWS; Docker/Kubernetes; Git; Agile; strong communication.
Ruby on Rails, Ruby, PostgreSQL, MySQL, ActiveRecord, AWS, Docker, Kubernetes, Redis, Sidekiq, GraphQL, API design, Git, RSpec, Minitest
2w
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Platform Innovation Engineer (Rockville, MD, US, 20850)
Rockville, Maryland, United States
$54k-$70k/yr OnsiteFull Time
Bachelor's in CS/Engineering/Data or related; SQL/Python/cloud/tools experience; interest in AI-enabled systems; eager to experiment; strong communication.
Snowflake, Azure, Matillion, Power Platform, Power BI, Python, SQL, AI tooling
2w
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Lead IT Systems Engineer - PUB SEC (HERNDON, VA, US, 20171)
Herndon, Virginia, United States
$116k-$155k/yr OnsiteMultiple Commitments Available
6+ YOEUS citizenship, active TS/SCI with Full Scope Poly, Bachelor's in Engineering/Software/Networks, 6+ years' experience; experience with SONET, DWDM, IP networks; Cisco/Nortel equipment; willing to work Panama schedule.
SONET, DWDM, Cisco equipment, Nortel, IP networks, Network management systems
4d
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Space Scientist-Engineer
Arlington, Virginia, United States
OnsiteFull Time
10+ YOETS security clearance; TOP SECRET/SCI eligibility; extensive systems engineering and program support in Navy S&T; expertise in space systems, EW, software, RF/EO-IR; advanced degree with substantial experience.
Systems Engineering, Software Development, RF, EO/IR sensors, Electronic Warfare
1mo
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Development Chief / Technical Architect
Arlington, Virginia, United States
HybridFull Time
10+ YOEBA/BS or 5 years experience; moderate security clearance; 10+ years leading technical software and system solutions; software architecture expertise; Agile experience; strong leadership and communication; web and API development experience.
Java, JavaScript, Git, SQL, Python, Angular, React, Vue, AWS, Microsoft C#, Angular 2
2mo
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Web Application Architect 3
Arlington, Virginia, United States
OnsiteFull Time
5+ YOEBachelor's degree or equivalent; 5+ years software development; production-level delivery; cloud/AWS; Agile/Scrum; DevSecOps; distributed systems.
AWS, Serverless, Event-Driven Architecture, SOA, Microservices, Microfrontend, CI/CD, Infrastructure as Code
HiringCafe market data
Software Developer Systems Software Jobs market signals in McLean, VA, US
These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.
Open jobs
740+
Hiring companies
300+
Fresh sample
47% new in 30d
Salary visibility
43% show pay
Companies appearing in this market
SteampunkArcfieldCydecorAretumDCCANetCentricsInterclypseLumen Technologies
Work location mix in visible results
Onsite: 33Hybrid: 15Remote: 12