Senior Software Engineer
Platinum Technologies
Senior Software Engineer
Platinum Technologies is seeking a Senior Software Engineer to join our team. In this position you will design, develop, integrate, and maintain software applications and services that support Object-Based Intelligence (OBI) mission requirements, enterprise ontologies, and knowledge graph capabilities.
The Senior Software Engineer serves as a key contributor to the design, development, and sustainment of mission-critical software solutions that enable semantic data integration, knowledge management, and advanced analytics. This position develops scalable applications, APIs, and microservices that integrate ontology-driven data models, knowledge graphs, and enterprise data sources to support Object-Based Intelligence workflows. Working within an Agile DevSecOps environment, the Software Engineer collaborates with ontology engineers, database engineers, data scientists, and Government stakeholders to deliver secure, high-performance applications that leverage Semantic Web technologies and AI/ML capabilities.
What you get to do:
- Design, develop, test, deploy, and maintain software applications and microservices supporting Object-Based Intelligence mission requirements.
- Develop APIs and backend services that integrate with enterprise ontologies, knowledge graphs, semantic databases, and object-management systems.
- Implement software solutions that leverage Semantic Web technologies, including RDF, OWL, SPARQL, and graph-based data models, to enable advanced search, reasoning, and data interoperability.
- Collaborate with ontology engineers, database engineers, data scientists, analysts, and Government stakeholders to translate mission requirements into scalable software solutions.
- Design and develop secure, containerized applications using modern software engineering practices and cloud-native technologies.
- Integrate heterogeneous data sources through RESTful APIs, messaging services, and data integration frameworks to support enterprise knowledge management.
- Develop automated unit, integration, and system tests while supporting continuous integration and continuous deployment (CI/CD) pipelines.
- Optimize application performance, scalability, and reliability to support high-volume mission operations and advanced analytics.
- Participate in Agile development activities, including sprint planning, code reviews, technical design sessions, and backlog refinement.
- Produce and maintain software design documentation, interface specifications, API documentation, and technical implementation guides.
- Support AI/ML initiatives by developing software services that enable access to semantic data, knowledge graphs, and contextual reasoning capabilities.
- Provide technical leadership, mentoring, and knowledge transfer activities to Government personnel and project team members on software engineering best practices.
Required Skills:
- Must be a U.S. citizen and have an active TS/SCI with CI polygraph.
- Minimum twelve (12) years of experience and an advanced degree or 17 years of experience with a bachelor's degree.
- Demonstrated experience designing, developing, and maintaining enterprise software applications using modern programming languages such as Java, Python, or C#.
- Experience developing RESTful APIs, microservices, and distributed applications.
- Experience integrating applications with relational databases, graph databases, or semantic data platforms.
- Experience with containerization technologies such as Docker and Kubernetes/OpenShift.
- Familiarity with Agile software development methodologies, DevSecOps practices, and CI/CD pipelines.
- Experience with version control systems such as Git.
- Ability to communicate complex technical concepts effectively to both technical and non-technical stakeholders.
The Company is an Equal Opportunity/Affirmative Action employer. All qualified candidates will receive consideration for employment without regard to disability, protected veteran status, race, color, religious creed, national origin, citizenship, marital status, sex, sexual orientation/gender identity, age, or genetic information.
- Senior Software Engineer TS/SCI FSPDepartment: Government Customer- HerndonLocation: Herndon, VAACTIVE TS/SCI CLEARANCE with FS poly REQUIRED TO BE CONSIDERED FOR THIS POSITIONSenior Software Engineer:Analyzes user interfaces, maintain hardware and software performance...Senior
$130k - $180k
HawkEye 360 is currently seeking a Senior Command & Control Software Engineer to join the Space Ground Systems Team. The mission of the Ground Systems Team is to provide the tooling to operate and maintain a growing constellation of small commercial satellites. This group...SeniorWork experience placementRemote workNight shift$99k - $206k
...intelligence, lifecycle mission enablement, and software modernization. Nightwing brings... ...defense, civil, and commercial markets.Senior Software EngineerAt Nightwing, we are on... .... We’re looking for a talented Software Engineer who excels at solving complex technical...SeniorFull time$122k - $253k
...surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies,... ...community, defense, civil, and commercial markets.Senior Principal Software Engineer, HyperscaleWe are seeking a senior software engineer to...SeniorFull timeRelocationRelocation package$135k - $216k
ResponsibilitiesPeraton is seeking a Senior Software Engineer in our Herndon, VA location to support a large software development classified program. The selected candidate should have experience with agile software methodology, and software engineering design best practices...SeniorFull timeContract workShift work- ...Business consulting services. We are in search of a highly motivated candidate to join our talented Team. Job Title: Senior Software Engineer. Location: Reston, VA. Purpose: Performs complex analysis, design, development, automated unit and...SeniorWork experience placementImmediate start
$183.8k - $263.6k
...firewall systems. This team is responsible for core control plane software that enables policy configuration, deployment workflows,... ...orchestration, and secure service integration. You will work closely with engineers across control plane, data plane, and platform teams to...SeniorFull timeTemporary workLocal areaRemote workFlexible hours$113.2k - $237.8k
Job Title: Senior Software EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: Top SecretEmployee Type... ...US* * *The Opportunity:We are seeking a Senior Software Engineer to join our growing team based in Sterling, VA. You will serve...SeniorContract workWork experience placementFlexible hours$175.43k - $183.61k
ICF Incorporated, LLC: Senior Software Engineer (Multiple Positions) Reston, VA.DUTIES:Apply computer science, software engineering, databases, and distributed/parallel processing frameworks to prepare big data for the use of scoring and scoring results.Work on projects...SeniorFull timeContract workWork experience placementWork at officeRemote work$130k - $145k
...customers, and make business decisions. Our technologists develop software, data products, analytics capabilities, automation, and AI-... ...where families will live for generations. SummaryAs a Senior Software Engineer, you'll help shape the digital experiences that support how...SeniorFull timeImmediate start- ICF Incorporated, LLC: Senior Software Engineer - Reston, VADUTIES:Development of code and experience with the Node.js platform, its tooling, JavaScript, TypeScript and ReactWork in an existing codebase and with a collaborative team.Build enterprise-scale backend REST...SeniorFull timeContract workPart timeWork experience placementRemote work
- ...DoD) to transform data into actionable intelligence, ensuring mission success in an evolving world. Our mission-first software and data engineering platform modernizes data operations, utilizing advanced workflows, CI/CD, and secure DevSecOps practices. We focus on...SeniorFull timeFlexible hours
$140k - $160k
Senior Software Engineer, Ground & Control Services About Us:BlackSky is a real-time intelligence company. We own and operate the world's most advanced space-based intelligence platform and provide customers satellite imagery, automated analytics and high-frequency monitoring...SeniorPermanent employmentFull timeWork at officeRemote workWorldwide$86.8k - $165.2k
...the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead... ...PAWhat You Will DoDesign, develop, test, deliver, and maintain software for cutting-edge satellite ground systems.Work with a team of...SeniorTemporary workWork experience placementWork at officeRemote workRelocationRelocation packageFlexible hours- ...active U.S. Government Security Clearance at the Top Secret and/or CBP/DHS suitability level.Vantor is currently seeking a Senior-Level Software Engineer to support our FALCON effort. This role can be performed remotely within the continental United States. As a Vantor...SeniorFull timeRemote work
$168.1k - $227.4k
Application deadline: Aug 2, 2026Bespoke Solutions is seeking a Senior Software Development Engineer to design, build, and operate a mission-critical, multi-tenant platform for managing large-scale fleets of embedded devices across highly secure and enterprise network...SeniorFull timeInternshipWork at officeFlexible hours$130k - $180k
...HawkEye 360 is seeking a Senior Command & Control Software Engineer to join their Space Ground Systems Team. The role involves designing and maintaining critical software for satellite operations, focusing on command and control systems and real-time data processing....Senior- ...Bespoke Solutions is seeking a Senior Software Development Engineer to design, build, and operate a mission-critical, multi-tenant platform for managing large-scale fleets of embedded devices across highly secure and enterprise network environments. We build infrastructure...Senior
- ...We are seeking a strong Software Engineer to join our software development team. You will be responsible for designing, developing, testing, and integrating custom software solutions across the full technology stack. The ideal candidate will have full stack experience...SeniorFull timeLocal area
$90 per hour
...Client: CareFirst BlueCross BlueShield Role: Senior Software Engineer - IBM DataPower and IBM API Connect Location: Hybrid - Onsite 1-2 times per month in Reston, VA. Candidates MUST reside in the DMV or WV areas. Duration: 12-month...SeniorContract work- ...A cybersecurity firm is seeking a Senior Software Engineer for their Intelligence Services team. This role involves developing innovative products leveraging AI and cloud technologies, contributing to a high-performing team, and ensuring continuous delivery of secure,...SeniorRemote work
- ...Senior Software Engineer Analyzes user interfaces, maintain hardware and software performance tuning, analyze workload and computer usage, maintain interfaces with outside systems, analyze downtimes, analyze proposed system modifications, upgrades and new COTS. Defines...Senior
- DescriptionWe are looking for an experienced Full Stack Senior Software Engineer to join a growing team in Reston, Virginia. This role is ideal for someone who enjoys creating robust, business-focused software solutions and can contribute across both front-end and back...Senior
- ...with TypeScript, including integration and performance testing CI/CD pipeline implementation using Jenkins and/or GitHub Actions Software development lifecycle (SDLC) best practices including automated testing frameworks and configuration management Version control systems...Senior
$130k - $145k
NVR, Inc. is seeking an experienced Full Stack Senior Software Engineer to work on site in Reston, VA.NVR’s technology teams thrive on providing multiple business lines with the tools and cutting-edge technologies that support NVR’s mission to create a better living experience...Senior- ...facilitate the development and implementation of innovative healthcare software solutions, including artificial intelligence (AI) applications... ...integrated into clinical workflows. If you are a software engineer with a passion for improving healthcare for the world, we want...Senior
- ...Job Title: Sr Software Engineer Duration: 12 months (possible to hire) Location: Reston, VA(Hybrid)-20191 Job Description: Qualifications To perform this job successfully, an individual must be able to perform each essential duty satisfactorily....SeniorWork experience placement
- ...and Business consulting services. We are in search of a highly motivated candidate to join our talented Team. Job Title: Senior Software Engineer - Information Technology Position: Oracle Financials - Techno-Functional Consultant Location: Reston, VA ( Remote)...SeniorRemote work
- Embark on a thrilling journey with Expedition Technology (EXP) where your software engineering prowess can ignite revolutionary advancements in defense and intelligence. We're scouting for trailblazers skilled in backend and systems-level engineering, ready to disrupt...SeniorFlexible hours
$185k - $225k
...salary Position Overview Amatriot is seeking Full Stack Software Engineers to support the Makalu contract. This role supports new... ...Application Performance and Technical Improvement Work with senior developers and the program architect to improve application performance...SeniorFull timeContract workRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!
- ngo software engineer Herndon, VA
- software system engineer Herndon, VA
- entry level software engineer remote Herndon, VA
- software engineer intern Herndon, VA
- software developer positions Herndon, VA
- junior software developer internship Herndon, VA
- software development engineer aws Herndon, VA
- consulting software engineer Herndon, VA
- financial software developer Herndon, VA
- software developer Herndon, VA


