Senior Full Stack Engineer
Rohirrim
Senior Full Stack Engineer
Are you passionate about pushing the boundaries of technology in the Gen AI space? Rohirrim is seeking a Senior Full Stack Engineer to mentor engineers, provide technical direction, and drive the development of cutting-edge applications. If you thrive in a fast-paced environment and enjoy leading by example while staying hands-on with coding, we want to hear from you!
Location: Hybrid — 3 days/week onsite in McLean, VA
At Rohirrim, we're at the forefront of innovation in the Gen AI space. Joining our team means being part of a dynamic environment where your leadership and expertise make a tangible impact on our products and team growth.
Rohirrim is pioneering the future of enterprise AI with Rohan, our patented, domain-aware generative AI platform. We help Fortune 1000 companies, aerospace and defense organizations, and government agencies automate complex processes like RFP creation and knowledge management.
We're a fast-growing, mission-driven team building cutting-edge AI products that reshape how enterprises work.
Role Overview
We are seeking a Senior Full Stack Engineer (50% backend / 50% frontend, or someone who is flexible with the split) to help design, build, and scale our generative AI-powered enterprise web applications. You'll play a key role in architecting services, ensuring performance and reliability, and contributing to frontend features that deliver great user experiences. This is a hands-on, senior-level role where you'll collaborate closely with product managers and UI/UX designers.
Responsibilities
- Architect, design, and build scalable backend systems with a focus on reliability, performance, and maintainability.
- Develop APIs and services in Nest.js/Node.js, integrating with databases, LLM providers, and external systems.
- Build and integrate features powered by generative AI, including LLM orchestration, prompt design, and retrieval-augmented workflows within Rohan.
- Contribute to frontend development in Angular/TypeScript, ensuring seamless user experiences.
- Write efficient, maintainable SQL queries and design database schemas for application features.
- Collaborate with cross-functional teams to deliver secure and scalable AI-driven solutions.
- Ensure high code quality via testing, code reviews, and best practices.
- Participate in system design discussions and help set technical direction, including how AI/LLM capabilities are architected into the platform.
Qualifications
- 5+ years of professional experience as a Full Stack Engineer.
- Strong experience with TypeScript/JavaScript.
- Hands-on experience with Nest.js/Node.js.
- Hands-on experience with a JavaScript UI framework (Angular/React/Vue).
- Strong SQL skills (schema design, query optimization).
- Basic knowledge of Azure DevOps (pipelines, workflows).
- Hands-on experience integrating with LLM providers/APIs (e.g., OpenAI, Anthropic, Azure OpenAI) in a production application.
- Practical experience with prompt engineering and retrieval-augmented generation (RAG) architectures.
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior Full Stack Engineer in McLean, VA vacancy
- ...health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and advanced technology organization... ...career growth. Roles & Responsibilities:MITRE is seeking a Senior Full Stack Engineer to support high-priority Intelligence Community (IC...SeniorInternshipLocal areaImmediate start
- ...Black Cape Title: Spectacular Full Stack Software Engineer (2+ years - Senior Level) Locations: Arlington, VA, Reston, VA and areas throughout the DMV area Onsite Expectations: MUST be willing to go onsite 2 - 3 days per week; could be up to 5 days per week...SeniorFull timeFor subcontractor2 days per week3 days per week
Black Cape
Arlington, VAmore than 2 months ago - As a global full service provider, we offer our customers the entire portfolio of IT and web services: From the initial idea to operation... ...new technologiesWhy PRODYNAFor the Techie-: Varied technology stack and projectsFree choice of hardware: Laptop and smartphone, can...SeniorWork at officeFlexible hours
$86.8k - $198k
Full Stack Software Engineer, SeniorThe Opportunity:As a full stack developer, you can resolve a problem with a complete end-to-end solution in a... ...production-ready. This role is more than just coding. As a senior full stack developer at Booz Allen, you’ll use your...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work$112k - $179k
ResponsibilitiesPeraton is seeking a Full‑Stack Engineer to join our Federal Strategic Cyber program—an environment where your engineering expertise directly strengthens national security. In this role, you’ll build modern, mission‑critical applications from front to back...SeniorContract workCasual workShift work- ...Senior Full Stack Software Engineer Quartermaster is building the world's most comprehensive maritime intelligence platform. Our SmartMast™ system transforms commercial and civilian vessels into a persistent, distributed sensing network—combining HD video, AI, radar...SeniorWork at officeFlexible hours
Quartermaster AI Inc
Arlington, VA4 days ago $171.6k - $338.3k
...on 12/31/2026.The Team:Deloitte’s Cyber Engineering is a new team that is spearheading the buildout... ...areas below:Hands-on experience in full stack software development across frontend and... ...From entry-level employees to senior leaders, we believe there’s always room...SeniorLocal area- Senior Full Stack Engineer (Heavy Backend / AI-Assisted) Location: McLean, VA Position Type: Contract (08-17-2026 to 12-31-2026) Rate: DOE Required Experience & Education 5-7+ years of professional software development experience. Strong analytical skills. Ability to reason...SeniorContract work
$143k - $187k
Senior Full Stack Engineer Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index, CoStar Group is on a mission to digitize...SeniorHourly payFull timeWork at officeWork from homeMonday to Thursday$229.9k - $286.2k
Senior Manager, Full-stack Engineer Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive and iterative delivery environment? At Capital One, you'll be part of a big group of...SeniorFull timePart timeInternshipLocal area- Steampunk in McLean, VA is seeking a Senior Software Developer to design, build, and deploy microservices and cloud-based systems using Java and React. You will collaborate with stakeholders to refine requirements and drive secure, high-quality software through automated...Senior
$314.8k - $359.3k
...Overview Senior Director, Full-stack Engineer (Developer Experience) As a Senior Director, Full-stack Engineer at Capital One, you will lead high-performing engineering teams working to define the future of banking in the cloud. You will partner closely with product...SeniorFull timePart timeLocal areaCapital One
McLean, VA6 days ago$225.4k - $257.2k
A leading financial services company is seeking a Senior Lead Software Engineer to drive transformation within their Cloud Operations Resilience Engineering division. The role involves leading technology projects, mentoring engineers, and delivering innovative cloud-based...Senior$123.25k - $166.75k
...Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: CI/CD, Git, Python (... ...environments. JOB DESCRIPTION Iron EagleX is seeking a Senior Full Stack Software Engineer to join our dynamic team in Crystal City,...SeniorFull timeContract workTemporary workImmediate startRemote workWorldwideFlexible hours$100k - $185k
OverviewAs a Senior Software Developer, you will work with a team of developers to deliver software features, APIs, and micro-service solutions. We are looking for candidates with 7+ years of experience writing software using Agile and DevSecOps methods such as build/release...Senior- ...ID28986922Reference26-21531Remote100% RemotePosition Title: Senior Full Stack EngineerLocation: Remote Duration: Contract to Hire Profile:... ...designKnowledge of software development lifecycle and modern software engineering principles and practicesExperience setting up a DataOps...SeniorContract workWork experience placementRemote work
$225.4k - $257.2k
...Overview Senior Lead Software Engineer, Full Stack (Cloud Operations Resilience Engineering) Capital One seeks Senior Lead Software Engineers who are passionate about marrying data with emerging technologies and solving complex business problems in a fast-paced,...SeniorFull timePart timeInternshipLocal areaCapital One National Association
McLean, VA3 days ago- ...Senior Full Stack Developer We are seeking a Senior Full Stack Developer with strong expertise in Java, Spring Boot, SQL, and MongoDB... ...native solutions leveraging AWS services and modern software engineering practices. Develop, maintain, and optimize CI/CD pipelines...Senior
RIT Solutions
McLean, VA2 hours ago $178.21k
...Job Title: Senior Full Stack Web Developer Salary: $178,214.00 Location: 2733 Crystal Drive, Arlington, VA 22202 The Senior Full Stack Web Developer will lead project planning sessions during design and implementation phases of a project and coordinate and...SeniorWork at officeMetropolitan Washington Airports Authority
Arlington, VA5 days ago- ...design, and implement solutions that matter. Work across the full technical spectrum – from crafting robust APIs and type systems... ...cohesive technology solutions Qualifications ~5+ years of full stack experience, building solutions users love ~ A natural drive to...SeniorFull timeWork at officeWork from homeFlexible hoursNight shiftWeekend work
Obviant
Arlington, VAa month ago - ...KDA Consulting Inc. is seeking a talented Full Stack Developer to support the design, development, and maintenance of enterprise-level... ...(IC) programs. The ideal candidate is a well-rounded engineer with experience across both front-end and back-end development...Senior
KDA CONSULTING INC
McLean, VA2 days ago $50 per hour
...-service to provide secure, responsive, adaptive and rapid business value.The Compute IaaS Product Area team is hiring a Senior Full Stack Engineer. This team covers virtualization, server operating systems (Windows and RHEL), databases (SQL Server and Oracle), patching...SeniorFull timeTemporary workWork experience placementCasual workRemote workFlexible hours- ...possess work authorization which allows them to be hired as a full-time Infinitive employee without the need for Visa sponsorship... ...Job Description: We are seeking a highly skilled Full Stack Engineer to join our dynamic team. This role requires a versatile developer...SeniorFull timeLocal areaVisa sponsorship
Infinitive Inc
McLean, VA10 days ago $125k
...through our partnerships with clients. Our close-knot team of highly cleared engineers, analysts, and program managers represent some of the best talent locally available. The Senior Full Stack Software Engineer will support the development of the FBI FDP system...SeniorFull timeFlexible hoursSynergy Ecp
Washington DCmore than 2 months ago$124.3k - $134.02k
...results. Learn more at About the OpportunityDMI is seeking a Senior Full-Stack Developer to help build and modernize a mission-critical... ...product working when the network does not.This is an AI-first engineering team. We deliver using an AI-augmented development methodology...SeniorContract workInterim roleLocal areaRemote work- ...Full Stack Developer We are seeking a highly skilled Senior Full Stack Developer with strong expertise in Java/J2EE and Angular to design, develop, and maintain... ...~ Bachelor's degree in Computer Science, Engineering, or a related field ~5+ years of professional...SeniorWork experience placement
Damco
McLean, VA12 hours ago - ...Senior Full Stack Engineer Location - Washington, DC Mode - Onsite Key Responsibilities Application Development: Design, build, and optimize complex, high-performance web applications, ensuring top-tier code quality across both the front-end (Angular) and back...Senior
Staffing the Universe
Washington DC4 days ago - ...Senior Full Stack Developer Remote We are seeking a Senior Full Stack Developer to support a federal cloud modernization and product... ...solution architects, product owners, UX designers, platform engineers, business analysts, and cross-functional technical teams to...SeniorFull timeLocal areaRemote work
System One
McLean, VA3 days ago - Leidos Inc in Arlington, VA, is seeking a Full Stack Developer to support the Compartmented Enterprise Services Office (CESO) program. This position entails designing, developing, and maintaining secure and reliable applications across the full technology stack. Applicants...SeniorWork at office
$110.7k - $218.3k
...remaining hands-on in development. As a Senior Consultant, Technical Transformation, you... ...business growth. This role combines full stack development, architecture leadership, and... ...stack developers through code reviews, engineering standards, and implementation best practices...SeniorLocal areaVisa sponsorship
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Full Stack Engineer. Be the first to apply!
Related searches
- full stack developer contract McLean, VA
- senior java full-stack developer McLean, VA
- java full stack angular developer McLean, VA
- full stack developer remote McLean, VA
- c# .net full stack developer McLean, VA
- junior full-stack web developer McLean, VA
- full stack developer McLean, VA
- full stack developer intern McLean, VA
- full stack / python developer (remote) McLean, VA
- senior full stack developer McLean, VA