Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Full Stack Engineer/API Specialist (Must Be A US Citizen)

BTI

Job Description

Job Description

Business Technology Integrators (BTI) is a Service-Disabled Veteran-Owned Small Business (SDVOSB) with more than 25 years of experience delivering innovative and reliable IT and engineering solutions to the Federal Government. BTI supports mission-critical programs across defense and civilian agencies, with core expertise in cybersecurity, program management, enterprise IT, and technical oversight services.

BTI is currently searching for a Full Stack Engineer/API Specialist to fulfill the roles and responsibilities below:
Roles and ResponsibilitiesAs a Full Stack Engineer / API Specialist, the primary responsibility is to design, develop, and maintain scalable, secure, and high-performing web applications and APIs that support the end-to-end functionality of the EFAST system, spanning front-end user interfaces, back-end services, and seamless integration with third-party systems.

This role involves collaborating closely with product owners, data engineers, UX designers, system architects, and external partners to deliver cohesive solutions that meet business requirements and adhere to modern software engineering and API governance standards. Full Stack Engineer / API Specialists are responsible for building and optimizing application components across the full technology stack, defining API specifications, ensuring data security and quality, and optimizing both application and API performance.

They are expected to apply best practices in secure coding, RESTful and SOAP service development, and performance optimization throughout the software development lifecycle, including design, development, testing, deployment, and maintenance.

Additionally, this role requires staying current with emerging technologies, modern programming languages, and industry trends to continuously improve application capabilities, API processes, and development practices. Collaboration with cross-functional teams to support modernization goals, enforce data quality standards, implement API governance strategies, and contribute to architecture decisions is a critical aspect of this role.Experience/Qualifications:
  • Undergraduate college degree from an accredited college or university in computer science, information technology, or a related discipline, or equivalent experience.
  • At least 5 years of experience in full stack application development and API development, integration, and management, with demonstrated proficiency across the full software development lifecycle.
  • Strong proficiency in modern programming languages such as Python, Java, JavaScript, or TypeScript,
and front-end frameworks such as React, Angular, or Vue.js.
  • Experience with back-end frameworks and technologies such as Node.js, Spring Boot, Django, or FastAPI for building scalable server-side applications and RESTful and SOAP APIs.
  • Proficiency in API development and testing tools such as Swagger, Postman, or similar platforms, including experience with API lifecycle management and governance practices.
  • Familiarity with API management platforms (e.g., Apigee, AWS API Gateway) and cloud platforms (e.g., AWS, Azure, Google Cloud), including deploying and managing applications in cloud or hybrid environments.
  • Proficiency in modern relational and non-relational databases (e.g., PostgreSQL, MySQL, MongoDB, DynamoDB), including data modeling, query optimization, and database management.
  • Knowledge of application and API security best practices, including secure coding standards, authentication and authorization protocols (e.g., OAuth, JWT), and vulnerability remediation techniques.
  • Experience with data privacy and security standards, API governance practices, and best practices for ensuring secure and reliable data exchange between systems.
  • Experience with version control systems (e.g., Git), CI/CD pipelines, and DevSecOps practices to support automated testing, integration, and continuous deployment.
  • Familiarity with AI-assisted development tools and the ability to integrate AI/ML capabilities into application workflows where applicable.
Ability to work collaboratively in a fast-paced, agile team environment and communicate effectively with both technical and non-technical stakeholders.

Powered by JazzHR

5qT1Fl9Aln

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Full Stack Engineer/API Specialist (Must Be A US Citizen) in Washington DC vacancy
  •  ...About Us We are a growing company that distills...  ...for an experienced engineer to join our technical...  ...looking for a Senior Full-Stack Engineer who embraces...  ...our data streams and API reads for our customers...  ...Work Authorization: Must be a US Citizen or US Permanent Resident... 
    Resident
    Permanent employment
    Work at office
    Remote work

    GrabJobs

    Washington DC
    3 days ago
  • $75k - $110k

     ...Client Requirements: applicants MUST BE US Citizens and be able to obtain Public Trust clearance...  ...About the Role CTG is seeking a Full Stack Engineer to design and lead scalable, secure,...  ..., integrations, cloud environments, APIs, and enterprise systems while partnering... 
    Resident
    Full time
    Temporary work
    Remote work

    Capital Technology Group

    Silver Spring, MD
    6 days ago
  • $145.92k - $209.24k

     ...looking for a Senior Full Stack Software Engineer for Application Engineering...  ...; as libraries, as APIs, and ultimately as...  ...Opportunity employer.US Technical Jobs. The position...  .... Person” (e.g., U.S. citizen, U.S. national, U.S....  ...regulations, candidates must be a U.S. citizen or... 
    Resident
    Permanent employment
    Contract work
    Work at office
    Remote work
    2 days per week

    IONQ

    College Park, MD
    22 hours ago
  • $75k - $100k

     ...Description Title:  Associate Full Stack Engineer Location:  Remote Terms: Full-...  ...Clearance:  Qualified candidates must be US citizens and able to obtain a minimum of a Public...  ...Palantir Foundry , leveraging REST APIs, microservices, and cloud-native technologies... 
    Resident
    Full time
    Work experience placement
    Remote work
    Flexible hours

    Revolutional, LLC

    Washington DC
    5 days ago
  •  ...Schedule 100% onsite Clearance US Citizens withDOD Top Secret Design...  ..., test, and maintain full-stack applications (UI, service/API layer, and data access...  ...environment. Develop and engineer improvements to the infrastructure...  ...Qualifications Candidate must currently have a TS and... 
    Resident

    RMantra Solutions Inc

    Alexandria, VA
    13 hours ago
  • $80k - $120k

     ...Workplaces honoree, is seeking a Full Stack Developer to join our team....  ...web application, and AWS engineering expertise. This position...  ...systems and services, APIs, user interfaces, and data...  ...this opportunity, candidates must be US Citizen and/or Current Green Card Holder... 
    Resident
    Full time

    Spatial Front

    Arlington, VA
    3 days ago
  • $122.5k

    Full Stack Software Engineer is needed for a direct hire onsite opportunity with SOC...  ...s client in Herndon, VA. Must currently hold an Active TS...  ...Requirements:Must be a US citizen with a current TS/SCI clearance...  ...Backend services that use API’s or a message bus to communicate... 
    Resident

    SOC Support Services

    McLean, VA
    22 hours ago
  •  ...description We are seeking a Full Stack Developer to join our team. This...  ...design Write effective APIs Build features and applications...  ...environment Primary Requirements MUST have a Degree in Computer...  ...AWS) Note Candidates MUST be a US Citizen and be able to obtain a... 
    Resident
    Contract work
    Live in
    Remote work
    Flexible hours
    2 days per week

    PLANIT Group

    Arlington, VA
    3 days ago
  •  ...Description: Anivas Tech is seeking a Full Stack Engineer to support our government agency IT operations...  ...services and RESTful or GraphQL APIs using Java, Python, Node.js, or equivalent...  ...and federal security requirements ~ US citizen with ability to obtain and maintain a... 
    Resident

    Anivas Tech LLC

    Upper Marlboro, MD
    14 days ago
  •  ...skilled and experienced Senior Full Stack Developer with a passion for...  ..., feature-focused teams to engineer solutions, mentor team...  ...Fully remote, full time, must be a US Citizen eligible for a DoD Secret clearance...  ...Express.js services to external APIs. Senior-level experience... 
    Resident
    Full time
    For contractors
    Work at office
    Local area
    Immediate start
    Remote work
    Relocation

    Expression

    Washington DC
    more than 2 months ago
  • $110k - $140k

     ...are seeking an Intermediate Full-Stack Developer with Java, Spring Boot...  ...life cycle for microservice API development using Java Spring...  ...in regular code reviews. Must possess superior oral and written...  ...Requirements Must be a US Citizen able to obtain Final Secret DoD... 
    Resident
    Local area
    Remote work

    AccessHR, Inc.

    Laurel, MD
    1 day ago
  •  ...Full Stack Engineer — Fintech (Remote / MENA Focus) Principled Search is partnering...  ...in onboarding new financial APIs. Knowledge of ledgering systems...  ...Q3 2026 to Washington DC (For US candidates only) Saudi Arabia or UAE. You must have a valid Right to Work in... 
    Remote job
    Full time
    Relocation

    Principled.

    Washington DC
    22 hours ago
  • $86.8k - $198k

    Geospatial Full-Stack Developer The Opportunity: As a geospatial...  .... Work with us as we shape geospatial...  ...years of experience with API-focused development, including...  ...process, candidates must complete the required...  ...protect the nation and its citizens. By focusing on... 
    Resident
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    Alexandria, VA
    3 days ago
  •  ...home to thinkers and feelers; engineers and artists. We work hard...  ...more than just a buzzword for us, it’s a state of mind. We...  ...control features using federal APIs. Build and maintain claims...  ...Qualifications Candidates must be a U.S. citizen or a Legal Permanent Resident... 
    Resident
    Permanent employment

    NuAxis Innovations

    Washington DC
    22 hours ago
  • $69.4k - $158k

    Full Stack Developer, Mid The Opportunity: Do you...  ...and robust APIs? Do you like looking...  ...team of software engineers, data scientists,...  ...and expertise. Join us. The world can’t wait...  ...process, candidates must complete the...  ...the nation and its citizens. By focusing on outcomes... 
    Resident
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    Arlington, VA
    22 hours ago
  • $111.5k - $207.5k

     ...security. Job Title: Senior Specialist, Full Stack Engineer Job Code: 40003 Job...  ...optimize backend services, APIs, and robust interfaces for...  ...may only be granted to U.S. citizens. In addition, applicants...  ...security investigation(s) and must meet eligibility... 
    Resident
    Full time
    Local area
    Flexible hours

    L3Harris Technologies

    Washington DC
    2 days ago
  • $98k - $163k

     ...Do:Design, develop, and test full‑stack components, including enterprise web service APIs, backend services, and user interfaces...  ...incrementsWork closely with engineering and QA teams to improve and...  ...and NoSQL data stores.Must be US Citizen.Must be able to OBTAIN and MAINTAIN... 
    Resident
    Full time
    Remote work
    Flexible hours

    Guidehouse

    Arlington, VA
    22 hours ago
  • $175k

     ...including endocrinologists, obesity medicine specialists, and clinical pharmacists, at-home lab...  ...looking for a highly skilled Senior Full Stack Engineer who is excited about building in an AI...  ...Own the System End to End Design APIs, services, and data models (primarily... 
    Resident
    Remote work
    Work from home
    Flexible hours

    GrabJobs

    Alexandria, VA
    1 day ago
  •  ...delivering innovative and reliable IT and engineering solutions to the Federal Government. BTI...  ...cloud resources. Additionally, they must ensure cloud security and compliance...  ...environment and translate technical concepts to non-technical stakeholders US Citizen... 
    Resident
    Full time

    BTI

    Washington DC
    2 days ago
  • $98k - $163k

     ...are seeking a highly skilled Full Stack Engineer to build and modernize the NIH...  ..., exposing secure REST APIs for MeSH editing and browsing...  ...DoD "PUBLIC TRUST"; candidates must obtain approved adjudication...  ...placement fee.SummaryLocation: US - MD, BethesdaType: Full time
    Full time
    Flexible hours

    Guidehouse

    Bethesda, MD
    22 hours ago
  •  ...Job Description Job Description Poaition: Full Stack AI Engineer Visa Status: US Citizens and Green Card Holders (Only) Location: San Francisco,...  ...Node.js and/or Python. Develop and integrate REST APIs and real-time communication systems. Design and maintain... 
    Resident
    Full time

    AHU Technologies Inc

    Washington DC
    14 days ago
  • $125k

     ...team of highly cleared engineers, analysts, and program...  ...available. The Senior Full Stack Software Engineer will...  ...• Experience with REST APIs, CI/CD, GitLab,...  ...Clearance requirement: Must possess active TS/SCI...  ...your talent. Because for us, it's not just about a... 
    Full time
    Flexible hours

    Synergy Ecp

    Washington DC
    22 hours ago
  •  ...redefining how everyone around us can get the best financial...  ...The Role We are looking for full stack engineers to build fast across BJAK's...  ...features across frontend, backend, APIs and databases. Create...  ...role is remote, but candidates must be based in US . We are... 
    Remote work

    GrabJobs

    Arlington, VA
    2 days ago
  •  ...humans and machines to solve complex problems has set us apart in designing and engineering solutions for the Department of Defense (DoD)...  ...defense contractor. Due to legal requirements, candidates must be US Citizens to be considered for employment. Other Notes -... 
    Resident
    Full time
    For contractors
    Work experience placement
    Local area

    Inflow Federal

    Springfield, VA
    22 hours ago
  • $142.72k - $172.72k

     ...project management—all with full data and operational...  ...seeking a Senior Full Stack Engineer to help build and...  ...consume REST and WebSocket APIs with solid networking...  ...clearance. Candidates must meet federal eligibility...  ...interview process, please let us know—we’re happy to... 
    Work at office
    Local area
    Remote work
    Worldwide

    GrabJobs

    Alexandria, VA
    3 days ago
  •  ...and CRM counselling, Product Engineering, Business Intelligence, Data...  ...services and e-commerce. USM, a US ensured Minority Business...  ...custom modules development is a must )• Comprehensive...  ...support of Drupal projects• Full-stack QA experience, that is functional... 
    Resident
    Remote work
    Worldwide

    USM Systems

    Washington DC
    3 days ago
  • $80k - $120k

     ...payers. We’re looking for a Full Stack Engineer who’s eager to grow fast,...  ...to healthcare innovation. You must value a ‘startup-like’ culture...  ...implementation, and maintenance of APIs and microservices that enable...  ...travel, domestic & abroad (US and other delivery locations)... 
    Full time
    Local area
    Remote work
    Flexible hours
    Night shift

    GrabJobs

    Alexandria, VA
    3 days ago
  •  ...seeking a Principal Agentic AI Full Stack Software Engineer to support our AI team in...  ...analytic frontends, production APIs, interfaces between AI workflow...  ...optional CONUS travel  ~ Due to US Government Contract Requirements, only US Citizens are eligible for this role... 
    Resident
    Contract work

    General Dynamics Information Technology

    Arlington, VA
    5 days ago
  •  ...seeking an exceptional Full Stack Developer to support the...  ...and maintain RESTful APIs with proper validation,...  ...collaborating with CBO engineers, product owners, and analysts...  ...that all new hires must successfully complete a...  ...be a U.S. citizen or permanent resident.... 
    Resident
    Permanent employment
    Full time
    Contract work
    Work at office
    Local area
    Flexible hours

    Ho Chunk

    Washington DC
    22 hours ago
  • GTSC seeks  Full Stack Software Developer \\ for mid -August 2026 start. Commitment to start must be by 30 June in order to complete background...  ...Section 508, document APIs and architecture decisions,...  ...Requirements \\ \ Must be a U.S. Citizen. \\ Must be eligible to... 
    Resident
    Full time
    Temporary work
    Local area
    Remote work
    Flexible hours

    Gtsc-Talent Solutions

    Washington DC
    22 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Full Stack Engineer/API Specialist (Must Be A US Citizen). Be the first to apply!