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Python Developer Jobs in Montclair, VA, US

4,000+ python developer jobs from 820+ companies hiring in Montclair, VA, US.

All jobs in Montclair, VA, USPython Developer Jobs in United States
Nearby:Dale City·Cherry Hill·Lake Ridge·Lorton·Triangle·Buckhall·Washington·Dumfries·Manassas·Independent Hill·Burke·West Springfield·Woodlawn·Manassas Park·Newington·Springfield·Centreville·Sudley·Bull Run
4,050 jobs- Montclair • 50 miles
2mo
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Forward Deployed Software Engineer - Tactical Edge
Washington, District of Columbia, United States
$135k-$200k/yr OnsiteFull Time
Palantir
PalantirNasdaq: PLTR: Builds software for data-driven decisions and operations.
Active US security clearance (Top Secret) or willingness to upgrade; strong software engineering background; experience with containers and orchestration; proficient in Python/Java/JavaScript/Bash; comfortable collaborating with customers; willingness to travel ~25%.
Docker, Podman, OpenShift, Kubernetes, Python, Java, Bash, JavaScript, Go, Linux, Networking, On-premise infrastructure
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1mo
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Senior SW Engineer ACE (PCB Design),
Los Angeles or Seattle or Washington D.C.
$165k-$250k/yr OnsiteFull Time
Voyager Technologies
Voyager TechnologiesNYSE: VOYG: Provides advanced defense and commercial space technology solutions.
5+ YOEMaster’s degree +5 years, or PhD +3 years; strong Python/C++ skills; CAD/CAE automation with SolidWorks/Creo/Ansys/COMSOL/Star-CCM+; CFD/FEA/SPICE experience; leadership and mentoring abilities.
Python, C++, SolidWorks, Creo, Ansys, COMSOL, Star-CCM+, ECAD Tools (Altium)
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2mo
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Soliel LLC - Data Engineer / Database Developer
Fort Eustis, Virginia, United States
HybridFull Time
Soliel
Soliel: Provides IT engineering and mission support for government agencies.
3+ YOE3+ years in data engineering or ETL/ELT; SQL/Python/Scala; DoD security familiarity; Azure data tools.
SQL, Python, Scala, Azure Data Factory, Azure Synapse, Azure SQL, Databricks, Spark, CI/CD, Infrastructure as Code
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1d
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Software Developer in Test (SDET)
Ashburn, Virginia, United States
RemoteFull Time
Syms Strategic Group
Syms Strategic Group: Provides IT and professional services to federal government agencies.
10+ YOEStrong programming in C#, Java, or Python; experience in software testing; familiar with SDLC/Agile; US citizenship and Public Trust clearance; remote work.
Selenium, TestNG, JUnit, QTP, LoadRunner, GitHub Actions, JIRA, SQL, JMeter, Gatling
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6d
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Senior Platform Engineer
McLean, Virginia, United States
RemoteFull Time
Pondurance
Pondurance: Provides managed detection and response for cyber threat protection.
Experienced Python developer with DevOps focus; strong CI/CD, infrastructure, Linux, and cloud (AWS) experience; containerization (Docker/Nomad); observability (Datadog) and on-call reliability.
Python, GitHub Actions, Terraform, AWS Lambda, Docker, Nomad, Datadog, Linux, Salt, HashiCorp
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1mo
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Full-Stack Developer - Mid-Senior, TS/SCI with CI Poly - $150K-$200K + 15% 401k
Fairfax, Virginia, United States
$150k-$200k/yr OnsiteFull Time
Millennial Software
Millennial Software: Develops software and automation tools for national security and defense.
5+ YOEMid-Senior full-stack developer with TS/SCI clearance and CI poly, 5+ years in full-stack dev, containerization ( Docker/Kubernetes ), Rust/JS/Python/Java, Linux, CI/CD, strong communication.
Docker, Kubernetes, Helm, Rust, Relational databases, Git, GitLab, CI/CD
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10h
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Protection Scientist Engineer, Intelligence and Investigations
San Francisco or New York City or Washington or Remote - US
$198k-$425k/yr HybridFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
4+ YOE4+ years in technical analysis/detection using SQL and Python; experience in trust/safety; data engineering and ML knowledge; productionised code experience.
SQL, Python, Data pipelines, Machine Learning, Production software development
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3w
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Sr. Power Platform Developer
Arlington, Virginia, United States
$86k-$170k/yr RemoteFull Time
Alpha Omega
Alpha Omega: Delivering digital transformation and IT solutions for federal agencies.
5+ YOE5+ years in Power Platform/SharePoint; US citizenship; BA/BS; federal contracting experience; strong documentation and communication.
Power Platform, SharePoint Online, Copilot, SPFx, Azure, Power Apps, Power Automate, Dataverse, Power BI, JSON, .NET, JavaScript, Python
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3w
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Intern- Software Engineer
Herndon, Virginia, United States
$25/hr HybridInternship
Vbrick
Vbrick: Secure enterprise video platform for live and on-demand streaming.
0+ YOEPursuing a Bachelor's degree in Computer Science or Engineering; strong programming skills; knowledge of databases; AI/ML fundamentals; good communication; eager to learn.
Java, Python, JavaScript, C#, SQL, NoSQL, HTML, CSS, GitHub Copilot, ChatGPT, Claude
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1mo
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Senior Software Engineer
Quantico, Virginia, United States
RemoteFull Time
ThinkTek
ThinkTek: Provides management and IT consulting services to federal agencies.
8+ YOESenior software engineer with 8+ years' experience in software architecture, systems integration, and cybersecurity for enterprise/simulation environments.
Python, Java, C++, JavaScript, Cloud (AWS/Azure), Containers, Microservices, APIs, CI/CD, DevSecOps
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1mo
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Missionforce - Associate Forward Deployed Engineer (FDE), Public Sector
Washington or Herndon
$96k-$177k/yr HybridFull Time
Salesforce
SalesforceNYSE: CRM: Provides cloud-based customer relationship management and business software.
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
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1w
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Full Stack Software Engineer – UI/UX & Web Engineering (Azure)
New York or Washington or Denver or Seattle or Los Angeles or Chicago or Austin or Dallas
OnsiteFull Time
WSP
WSPToronto Stock Exchange: WSP: Provides engineering, design, and environmental consultancy services globally.
12+ YOEBachelor's degree; 12+ years full-stack experience; strong React/Vue; REST APIs; Python/Node/.NET; Azure services; DevOps; Git; Agile.
React, Vue, Python, Node.js, .NET, REST APIs, Azure, Azure App Services, Azure Functions, Cosmos DB, Azure Storage, CI/CD, Git
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1w
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AI Platform and Applications Engineer
Washington, District of Columbia, United States
$103k-$185k/yr HybridFull Time
National Endowment for Democracy
National Endowment for Democracy: Provides grants to strengthen democratic institutions and values worldwide.
8+ YOEBachelor's degree or equivalent; 8-10 years software/platform engineering; 2-3 years AI/LLM experience; strong Python/TypeScript; API and backend experience; AI-enabled apps with LLMs, embeddings, retrieval; RAG and agentic workflows; containerized deployments; Linux; observability; strong communication.
Python, TypeScript, Node.js, APIs, Linux, Git, Docker, CI/CD, observability, vector databases, embeddings, RAG, llama.cpp, Hugging Face
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1mo
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System Developer
Washington, District of Columbia, United States
OnsiteFull Time
Patriot
Patriot: Provides technology and cybersecurity services to federal government agencies.
5+ YOEMid-level system developer with 5+ years in systems engineering, scripting, Windows API, ServiceNow, ITSM, and cloud solutions; US citizenship.
ServiceNow, Bash, Python, PowerShell, Microsoft Entra, Intune, APIs
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1d
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Senior ServiceNow Developer
Falls Church, Virginia, United States
RemoteFull Time
DirectViz Solutions
DirectViz Solutions: Provides information technology and cybersecurity services to government agencies.
Senior ServiceNow developer with ITIL/SOA, integration, and strong stakeholder engagement; proficient in ServiceNow modules, automation, and development.
ServiceNow, JIRA, Tableau, REST, SOAP, JSON, XML, Java, Python, JavaScript
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1mo
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Software Developer (Automation & Distributed Integration Systems)
Ashburn, Virginia, United States
$115k-$117k/yr HybridFull Time
Dobbs Defense Solutions
Dobbs Defense Solutions: Providing IT and cybersecurity solutions for government missions.
5+ YOE5+ years software testing and test automation; strong C#/.NET Core; experience with backend services, APIs, distributed systems; CI/CD; test frameworks.
C#, NET Core, PowerShell, Python, HTTP/REST, TCP/IP, Sockets, xUnit, NUnit, MSTest, Git, CI/CD, Postman, Newman, RestAssured, Docker
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2w
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Engineer III - Flight Dynamics Systems Development
Reston, Virginia, United States
HybridFull Time
Iridium
IridiumNASDAQ: IRDM: Provides global voice and data satellite communication services.
5+ YOEBachelor’s degree in Aerospace Engineering, Computer Science, or related field; 5+ years in aerospace or satellite ground systems; active Secret security clearance or ability to obtain; strong communication and analytical skills.
Java, JavaScript, Python, Shell scripting
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3mo
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Elastic Engineer
Dulles, Virginia, United States
$120k-$135k/yr HybridFull Time
ARGO Cyber Systems
ARGO Cyber Systems: Provide managed cybersecurity monitoring and incident response services.
8+ YOE8+ years software development; 2+ years Elastic Cloud on Kubernetes (ECK) admin; 2+ years Elasticsearch DSL; 5+ years Kubernetes; strong ELK stack knowledge; scripting in Python, Bash, JavaScript; U.S. citizenship; active clearance (TS/SCI eligible); DHS suitability; Bachelor's in Software Engineering or Computer Science.
ELK Stack, Elasticsearch, Kibana, Logstash, Beats, Elastic Cloud on Kubernetes, Kubernetes, Python, Groovy, Bash, JavaScript
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1w
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Senior Systems Engineer
Washington, District of Columbia, United States
$93k-$125k/yr OnsiteFull Time
TekSynap
TekSynap: Provides mission-focused IT and technology solutions to government agencies.
0+ YOETop-Secret clearance; full-stack development (Python/Java/.NET); SQL; APIs; data linking; dashboards; Agile; O&M; secure coding; Bachelor's degree or equivalent with up to 8 years experience.
Python, Java, C#, SQL, REST APIs, Jira, Data visualization, Data modeling, Graph concepts
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1mo
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Principal Software I&T Engineer (Contract)
Arlington or Denver or Houston or Merritt Island
RemoteContract
Airbus U.S. Space & Defense
Airbus U.S. Space & DefenseEuronext Paris: AIR: Provides satellite, helicopter, and cybersecurity solutions for U.S. defense.
15+ YOEEmbedded software, testing, and flight software development; 15+ years experience with B.S. or 12+ with M.S.; US citizenship; ability to obtain clearance; periodic travel.
C/C++, TCL, Python, Embedded software development and testing, RTOS, Device driver development, GNC algorithms, Software safety assurance, Test scripting, Simulators, HIL
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2mo
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Staff Engineer, AI Core
Palo Alto or Miami or Washington or Durham or Toronto
HybridFull Time
Nubank
NubankNew York Stock Exchange: NU: Operates a digital financial platform offering banking and credit services.
Experience as a Staff Engineer or Senior Engineer shipping complex, large-scale consumer-facing mobile apps; strong backend and AI/ML data-pipeline experience; leadership and mentorship.
Flutter, AWS, Go, Java, Python, Clojure, Microservices, Event-driven
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3w
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Full-Stack Developer Intern
Gaithersburg, Maryland, United States
OnsiteInternship
Diaconia
Diaconia: Provides secure IT modernization and engineering for government agencies.
0+ YOECurrently enrolled in a Bachelor's or Master's program in CS/Software Engineering or related field; GPA 3.2+, proficiency in JavaScript/TypeScript, front-end framework (React/Angular/Vue), RESTful APIs, relational DB, Git; strong problem-solving and communication.
JavaScript, TypeScript, React, Angular, Vue, Node.js, Python, Java, SQL, Git, Docker, Kubernetes, AWS, Azure, Google Cloud, GraphQL, REST
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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
FTI Consulting
FTI ConsultingNYSE: FCN: Global business advisory and specialized management consulting services.
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
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1w
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Principal Software Engineer
Herndon, Virginia, United States
$139k-$185k/yr RemoteFull Time
ATPCO
ATPCO: Global repository for airline pricing and merchandising data.
5+ YOELead design and build of a high-performance pricing engine; expert in distributed systems and modern languages.
C/C++, Rust, Go, Python, Linux, Distributed systems, APIs, Zero-copy, Lock-free data structures
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1mo
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Senior Software Engineer
Vienna, Virginia, United States
$120k-$140k/yr HybridFull Time
SteerBridge: Provides technology and digital transformation services for government agencies.
8+ YOESenior Software Engineer with 8+ years full-stack experience; US citizen; active Secret clearance; React/TypeScript/Node.js; VA systems experience preferred.
React, TypeScript, Node.js, JavaScript, PostgreSQL, MongoDB, Express.js, AWS, Terraform, CloudFormation, Docker, REST, SOAP, Elasticsearch, Python, CI/CD, Git
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1mo
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Senior Firmware Engineer
Herndon, Virginia, United States
OnsiteFull Time
Fibertek, Inc.
Fibertek, Inc.: Designs and manufactures laser and electro-optic aerospace systems.
7+ YOE7+ years experience; BS/MS in EE; FPGA/VHDL/SystemVerilog; DSP, LIDAR; FPGA tooling; GitHub/CI/CD; hardware integration.
VHDL, SystemVerilog, Xilinx, Microchip, Lattice, FPGA tools, GitHub, CI/CD, SPI, I2C, UART, LVDS, GTY/GTM, JESD204B/C, Ethernet, SpaceWire, DDR3/4, QDR, FRAM, Python
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1mo
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Junior Software Engineer
Ashburn, Virginia, United States
OnsiteFull Time
Cardinal Technology Systems
Cardinal Technology Systems: Provides cybersecurity and IT solutions to government agencies.
3+ YOEBachelor’s degree required; 3+ years experience; CBP suitability eligibility; databases, web apps, and interfaces; strong communication.
Python, SQL, Java
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3mo
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Frontend Lead Engineer
Richmond or Arlington
OnsiteFull Time
Koalafi
Koalafi: Provides lease-to-own and loan financing for non-prime consumers.
6+ YOE6+ years of front-end experience with modern web technologies (React, Vue, Angular); four-year CS/engineering degree; experience with REST APIs, AWS, and testing; in-person location requirement to Richmond, VA or Arlington, VA.
React, Vue, Angular, Golang, Java, Node, Python, Cypress, Playwright, AWS, Kubernetes, Postgres
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2mo
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Senior Software Engineer
Herndon, Virginia, United States
RemoteFull Time
iDirect Government
iDirect Government: Provides secure satellite-based IP communication solutions for government organizations.
6+ YOESenior software engineer with 6+ years in C/C++, Linux, REST/GraphQL, and modern web tech; strong problem solving and collaboration.
C++, Go, GraphQL, Vue, Node.js, WebSockets, REST, Docker, Kubernetes, PostgreSQL, MySQL, MariaDB, Python, Perl, Lua, GCC, cmake, bash, Jira, Git
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1mo
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Senior Software Engineer
Gaithersburg, Maryland, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
8+ YOEBachelor’s or Master’s degree in CS/Engineering with 6+ years (Master’s) or 8+ years (Bachelor’s); TS/SCI clearance; strong OO programming, REST, SQL, Linux; AWS, Agile.
Java, Python, REST, SQL, Linux, Docker, OpenShift, Spring Boot, PostgreSQL, Tomcat, Maven, AWS, GitLab CI/CD, JavaScript, Front-end frameworks
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2mo
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Senior Platform Engineer
Arvada or Los Angeles or San Francisco or Seattle or Washington
$145k-$186k/yr HybridFull Time
Quindar
Quindar: Provides cloud-based software for satellite mission and fleet operations.
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
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3w
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Software Developer (50767)
Bethesda, Maryland, United States
$120k-$160k/yr OnsiteFull Time
GAP Solutions
GAP Solutions: Providing professional services and mission support to federal agencies.
3+ YOEBachelors in CS/engineering; strong Python (NumPy, PyTorch, SciPy) and C++17; GPU programming (CUDA); Linux (Ubuntu); Docker; Git; CI/CD; software engineering best practices.
Python, C++, CUDA, PyTorch, NumPy, SciPy, Linux (Ubuntu), Docker, Git, GitHub Actions, Azure, Gadgetron, MRD, Azure Container Registry
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1w
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Senior Engineer, Production
Arlington, Virginia, United States
OnsiteFull Time
Venture Global LNG
Venture Global LNGNYSE: VG: Produces and exports liquefied natural gas from North American facilities.
3+ YOE3+ years production/ process engineering; advanced degree preferred; LNG or hydrocarbon experience; data tools such as Power BI, Python/SQL beneficial.
Excel, Power BI, Unisim, HYSYS, Python, SQL
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1mo
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Site Reliability Engineer
Washington, District of Columbia, United States
HybridFull Time
Highlight Technologies
Highlight Technologies: Federal contractor providing IT modernization and mission solution services.
5+ YOE5+ years systems engineering; Bash, Python, PowerShell; Windows API & integrations; cloud (SaaS/IaaS/PaaS); Microsoft Entra admin; compliance policies; ServiceNow development; Public Trust eligibility; Bachelor’s in CS; ITIL v3/v4 preferred.
Microsoft Entra, ServiceNow, Bash, Python, PowerShell, APIs, Runbooks, Intune, DLP, RBAC, SaaS, IaaS, PaaS, Glide, JavaScript
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1mo
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Data Engineer III
Columbia, Maryland, United States
$113k-$128k/yr RemoteFull Time
eSimplicity
eSimplicity: Provides digital and data services to federal government agencies.
8+ YOEPublic trust clearance required; 8+ years data engineering/software development; 4+ years in Python/Java/cloud data pipelines; BS in CS/IS/Engineering or 10 years IT alternative; strong data architecture and governance skills; English proficiency.
Spark, Hadoop, MySQL, PostgreSQL, Apache Airflow, AWS Redshift, RDS, EMR, EC2, Spark-Streaming, Storm, Scala, Java, Python, GitHub, Jira, Confluence
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2w
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JOIN OUR TEAM - Web Scraping Engineer - On-Site (U.S. Citizen - Active Secret Clearance)
Arlington, Virginia, United States
$95k-$105k/yr OnsiteFull Time
Powerhouse Institute
Powerhouse Institute: Provides strategic IT and management consulting services to government agencies.
3+ YOEU.S. citizen with active secret clearance; local to Arlington, 3+ years web scraping; proficient in Python and Java; knowledge of HTML/CSS/JS, APIs, databases; BS/BA in CS or related IT (experience can substitute).
Python, Java, BeautifulSoup, Scrapy, Selenium, HTML, CSS, JavaScript, APIs, JSON, XML, SQL, Cloud
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1mo
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Principal Engineer, State Estimation (R4602)
United States or San Diego or Dallas or Boston or Washington or North America
$270k-$400k/yr OnsiteFull Time
Shield AI
Shield AI: Develops autonomous flight software and unmanned aircraft for defense.
15+ YOEExtensive state estimation experience in aerospace; GNSS/INS integration; production-grade software; strong C/C++, Python/MATLAB; safety-critical development; 15+ years experience.
C/C++, Python, MATLAB
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6d
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GXM Technologies LLC - Senior Full Stack Application Developer (.NET MAUI)
Arlington, Virginia, United States
OnsiteFull Time
GXM Technologies
GXM Technologies: Delivering rapid software solutions and innovation for defense organizations.
6+ YOE6+ years in .NET/C#, cross‑platform mobile development; US citizen; ability to obtain government clearance; BS/MS in CS/Engineering; 3+ years with SQL databases; Agile experience.
C#, .NET MAUI, Xamarin Forms, SQL Server, SQL, PowerShell, Python
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Systems Engineer
Herndon, Virginia, United States
OnsiteFull Time
Cinteot
Cinteot: Provides cybersecurity and software engineering services for federal agencies.
5+ YOE5+ years Linux, scripting, configuration management; Python, Perl, Korn, Bash; Git/GitLab; DevOps automation; Security+ certification.
Linux, Python, Perl, KornShell, Bash, Ansible, Git, GitLab, GitLab CI
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1w
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Infrastructure Engineer
Torrance or Washington or Los Angeles
$101k-$138k/yr OnsiteFull Time
Northwood Space
Northwood Space: Manufacturing ground stations and providing satellite communication infrastructure.
3+ YOE3-5 years production infrastructure experience; Linux, networking, AWS, Terraform, Kubernetes; on-call; Python/Go; strong technical writing.
Terraform, Kubernetes, AWS, Helm, GitOps, Python, Go, Vault, Grafana
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HiringCafe market data

Python Developer Jobs market signals in Montclair, 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
4,000+
Hiring companies
820+
Fresh sample
47% new in 30d
Salary visibility
53% show pay

Companies appearing in this market

Airbus U.S. Space & DefenseeSimplicityIridiumMillennial SoftwarePalantirShield AISyms Strategic GroupChenega Corporation

Work location mix in visible results

Onsite: 39Hybrid: 25Remote: 17

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