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78 software developer i jobs at 44 companies in Gaithersburg, MD

3mo
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Software Engineer I
Fort Meade or Annapolis Junction
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
7+ YOETS/SCI with polygraph; BS in STEM; 7+ years software engineering or 5+ years with degree; Python, JavaScript, JSON, CSS; REST services; MongoDB, Elasticsearch; Docker; GitLab, Jira; full-stack; AI-assisted development; eager junior developer
Python, JavaScript, JSON, CSS, MongoDB, Elasticsearch, Docker, GitLab, Jira, REST, FASApi, Golang, Protobuf, React, SASS/LESS, Leaflet
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2mo
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Software Engineer I
Silver Spring, Maryland, United States
$83k-$108k/yr OnsiteFull Time
Technology Service Corporation
Technology Service Corporation: Develops advanced sensor systems and engineering solutions for defense.
0+ YOEEntry-level software engineer with Bachelor's or Master’s in CS/EE or similar; proficient in C/C++ or Java; interest in Navy AEGIS and defense tech; ability to obtain DoD clearance; US citizenship.
C/C++, Java, Qt, Microsoft Visual Studio, Windows, Linux
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3mo
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Software Engineer 3 - I
Annapolis Junction, Maryland, United States
OnsiteFull Time
InterImage
InterImage: Provides IT modernization and cybersecurity services to federal government agencies.
12+ YOETwelve years SWE experience; Bachelor's degree in CS or related field; extensive software design, development, and leadership responsibilities.
Javascript, Typescript, React, node.js, Rust, Python, shell, Kubernetes, Helm Charts, Service-mesh, Multi-site applications, Load Balancing, Cloud Migration, nifi, JEST, Grafana, InfluxDb, Elasticsearch, Redis, mysql, Apache Superset, RabbitMQ, Kafka, Ansible, Salt, Terraform, Web-Sockets, JBLOCKS, CASPORT, Neo4j, CAMKEY, LAC, COI
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2mo
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Software Engineer I
Washington, District of Columbia, United States
$99k-$140k/yr OnsiteFull Time
Vantage Systems
Vantage Systems: Providing engineering and technical services for space and aviation missions.
Entry-level software engineering role requiring a Bachelor's degree and SECRET clearance.
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3mo
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NLM Software Engineer I
Bethesda, Maryland, United States
$70k-$95k/yr OnsiteFull Time
Lexical Intelligence
Lexical Intelligence: Develops NLP software for biomedical research and portfolio analysis.
2+ YOE2+ years software development experience; BS/degree in CS/SE; proficiency in Python/Java/JavaScript/C++/R/SQL; SDLC and secure coding; web app development; Git; strong communication; US work authorization with Public Trust clearance.
Python, Java, JavaScript, C++, R, SQL, Matlab, SAS, ETL, MySQL, MongoDB, Jupyter Notebooks, Git, GitHub, GitLab, Linux, Docker, Kubernetes, REST, AWS, Google Cloud, Azure, CI/CD, US-CERT, OWASP
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1mo
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Software Engineer I
Hartford or Atlanta or St. Paul or Hunt Valley
$99k-$163k/yr HybridFull Time
Travelers
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
2+ YOEBachelor's in computer science or related STEM (or equivalent), 2+ years software engineering experience, strong OOP and SDLC knowledge, problem-solving, collaboration, and eagerness to learn Salesforce.
Salesforce
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Software Engineer I
Sparks or Sacramento or Dayton or Hagerstown
$45k-$52k/yr OnsiteFull Time
1 Click Logistics
1 Click Logistics: Provides third-party logistics, warehousing, and e-commerce fulfillment services.
1+ YOEBachelor's in CS/IS or 3 years' equivalent experience; 1–2 years web/app development (JavaScript/CSS) preferred; experience or exposure to ColdFusion, React, MySQL; familiarity with APIs, Git, and Jira; strong communication and problem-solving.
ColdFusion, React, HTML5, CSS3, JavaScript (ES6), Bootstrap, jQuery, MySQL, APIs, webhooks, XML, JSON, CSV, Git, Jira, AWS, Azure, Warehouse Management System (WMS), Electronic Data Interchange (EDI)
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3mo
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Software Engineer (Levels I - VI)
Annapolis Junction, Maryland, United States
$130k-$240k/yr OnsiteFull Time
JASINT
JASINT: Providing cybersecurity and technical services for national security missions.
1+ YOETS/SCI with Poly required; IAT II; Bachelor's degree (or 4 yrs experience); 1+ years software engineering experience (2+ yrs on DoD/IC preferred); experience with configuration/build tools and software development lifecycle.
SVN, Clearcase, Maven, ANT, Make
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1d
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Fullstack Software Development Engineer I, Card
Arlington, Virginia, United States
$124k-$155k/yr HybridFull Time
Remitly
RemitlyNASDAQ: RELY: Provides digital cross-border money transfer services for global customers.
1+ YOEBachelor's degree or equivalent experience,1+ years professional software development,proficiency in TypeScript/React and a backend language,experience with distributed systems and cloud platforms.
React, GraphQL, Java, Kotlin, TypeScript, Node.js, Go, Python, AWS, GCP, Azure
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1mo
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Software Engineer I - Ground Software
Greenwood Village or Austin or Laurel
$70k-$125k/yr HybridFull Time
York Space Systems
York Space SystemsNYSE: YSS: Designs and manufactures modular spacecraft platforms and mission solutions.
0+ YOEEarly‑career full‑stack engineer; 0–1 years experience; bachelor's (or pursuing) in CS or related; foundational React/Angular knowledge; familiarity with TypeScript, C#, REST, Git, SQL, front-end tools; ability to obtain security clearance.
React, TypeScript, C#, .NET, Docker, Kafka, REST, Yarn, Babel, Material-UI, Git, SQL, TanStack Query
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2w
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AI/ML Software Engineer I
Annapolis Junction, Maryland, United States
$126k-$166k/yr OnsiteFull Time
BCT
BCT: Delivering mission technology and engineering services for national security.
7+ YOEActive TS/SCI with poly required, 7+ years software engineering experience (or bachelor's + experience), DoD 8570, LLM/customization, API and UI design, security and access control, EM/security measures, Microsoft Office integration.
LLM, API, Microsoft Office
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2d
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Software Engineer I – Unified Video Sustainment
Ashburn, Virginia, United States
$40-$44/hr HybridFull Time
Cubic
Cubic: Develops defense training systems and public transit fare technology.
Bachelor's degree in a technical field, experience with object-oriented programming, familiarity with JavaScript/TypeScript, Python, Java or C++, Git, and ability to obtain U.S. Secret clearance.
Node.js, Python, PostgreSQL, Docker, Kubernetes, Git, GitLab, Ansible, JavaScript, TypeScript, Java, C++, CI/CD, Linux, REST APIs, GitHub Copilot, ChatGPT, Claude Code, Codex
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3mo
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Cloud Software Engineer Top Secret/SCI w/Poly
Annapolis Junction, Maryland, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
8+ YOEActive TS/SCI clearance with current poly; 8+ years software engineering; DoD 8570 IAT Level I; AWS/CKAD/Elastic certifications; no degree required.
Java, Linux, Docker, Kubernetes, Python, Ansible, MongoDB, Git
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3mo
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Cloud Software Engineer Top Secret/SCI w/Poly
Annapolis Junction, Maryland, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
8+ YOEActive TS/SCI with current polygraph; 8+ years software engineering; DoD 8570 IAT Level I (Security+) or higher; certifications (AWS, CKAD, Elastic Engineer, etc.); no degree required.
Java, Linux development environment, Docker, Kubernetes, Python, Ansible, MongoDB, Git
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2mo
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Research Engineer I
Arlington, Virginia, United States
$90k-$105k/yr OnsiteFull Time
University of Southern California
University of Southern California: Private research university providing higher education and healthcare services.
0+ YOEMaster's degree; <1 year experience; TS/SCI eligibility; strong programming and Linux/Networking skills.
Python, C++, Golang, Linux, SDN, Ansible, Bash, Nagios, Prometheus, SNMP, iptables, NFS, TensorFlow, PyTorch, Docker
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1mo
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Software Engineer Backend/Platform Systems I (Full Time) – United States
San Jose or New York City or Boston or Knoxville or Austin or Milpitas or Alpharetta or Research Triangle Park or Maynard or Fulton or Dallas or Atlanta or Hillsboro
HybridFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
0+ YOEDegree/certificate or equivalent experience; proficiency in C/C++, Java, or Go; experience with microservices/APIs, Linux, networking (TCP/IP, DNS, DHCP); familiarity with AWS, Azure, or GCP.
C/C++, Java, Go, Linux, AWS, Azure, GCP, pyTest, CI/CD
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1mo
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Development Engineer I
Atlanta or Silver Spring
$61k-$112k/yr HybridFull Time
Warner Bros. Discovery
Warner Bros. DiscoveryNASDAQ: WBD: Produces films, television shows, and digital streaming content.
Software development experience with Node.js or Python, Git and CI/CD, cloud (AWS) and containerization (Docker), RESTful API and JSON experience, SQL/NoSQL familiarity, debugging/troubleshooting, ability to work 24x7 production shifts and on-call.
JavaScript, Node.js, Python, Git, CI/CD, GitOps, AWS, Docker, vCenter, RESTful APIs, JSON, SQL, NoSQL, RabbitMQ, Jira, Confluence, CRM
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Application Developer I
Rockville, Maryland, United States
$65k-$82k/yr OnsiteFull Time
MOM's Organic Market
MOM's Organic Market: Operates a chain of family-owned organic grocery stores.
2+ YOEBachelor's or equivalent experience, 2+ years application/software development, experience with Java, JavaScript, HTML, CSS, Standard SQL, Python, ML frameworks and prompt engineering; Google Suite and Microsoft Office proficiency; grocery retail experience preferred.
Java, JavaScript, HTML, CSS, Standard SQL, Python, Machine Learning frameworks, prompt engineering, Google Suite, Microsoft Office, Mac OS, Windows OS
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Application Developer I
Rockville, Maryland, United States
$65k-$82k/yr OnsiteFull Time
MOM's Organic Market
MOM's Organic Market: Regional chain of organic and natural grocery stores.
2+ YOEBachelor's or equivalent experience, 2+ years application/software development, proficiency in Java, JavaScript, HTML, CSS, Standard SQL, Python, ML frameworks and prompt engineering; experience with Google Suite, Microsoft Office, Mac OS, Windows OS; grocery retail experience preferred; strong communication and prioritization skills.
Java, JavaScript, HTML, CSS, Standard SQL, Python, Machine Learning frameworks, prompt engineering, Google Suite, Microsoft Office, Mac OS, Windows OS, Point of Sale (POS)
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Software Developer
McLean, Virginia, United States
OnsiteFull Time
Integral Federal
Integral Federal: Provides IT, cybersecurity, and digital transformation solutions for government agencies.
Bachelor's in Computer Science or IT, IAT I certification (A+ CE, CCNA-Security, CND, Network+ CE, or SSCP), TS/SCI clearance, experience with RHEL and tools like Interrogator, CSM, RMF Writer, and proficiency in Python, PHP, JavaScript, C/C++, and Java.
Interrogator, CSSP Subscriber Manager (CSM), RMF Writer, RHEL, Python, PHP, JavaScript, C/C++, Java
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