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Senior Full Stack Web Developer Jobs in Washington

Elder Research

Senior Full-Stack Engineer

Arlington, VA · On-site +1

Senior Full-Stack Engineer General Information Requisition # 692 Locations USA-VA-Arlington Posting ... Leverage browser APIs (File API, Streams, Web Workers) and optimize front-end performance * Lead ...

Elder Research

Senior Full-Stack Engineer

Arlington, VA · On-site

Senior Full-Stack Engineer General Information Requisition # 692 Locations USA-VA-Arlington Posting ... Leverage browser APIs (File API, Streams, Web Workers) and optimize front-end performance * Lead ...

Constellation Inc

Senior Full Stack Engineer

Washington, DC · On-site +1

$135K - $155K/yr

Pay: $135,000.00 - $155,000.00 per year Senior Full Stack Engineer Constellation seeks a Senior ... Design, develop, and maintain modern web applications using React that integrate with backend data ...

Palnar

Sr. Full Stack Developer

Mclean, VA · On-site

Job Title: Sr Full stack Developer (Nodejs, Python, React /Vue.JS, AWS) Location: Richmond, VA/ McLean, VA (Hybrid onsite) Duration: ~12 months Team Info : Associate Exp Technology Focused on ...

Constellation Inc

Senior Full Stack Engineer

Washington, DC · Remote

$135K - $155K/yr

Pay: $135,000.00 - $155,000.00 per year Senior Full Stack Engineer Constellation seeks a Senior ... Design, develop, and maintain modern web applications using React that integrate with backend data ...

UNISSANT

Senior Full Stack Developer (Java)

Washington, DC · On-site

$59.50 - $76.75/hr

A Senior Full Stack Developer (Java) with Collibra experience is responsible for designing ... Design, develop, and maintain end-to-end web applications using Java, Spring Boot, and a modern ...

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Senior Full Stack Web Developer information

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$56.1K

$133.5K

$273K

How much do senior full stack web developer jobs pay per year?

As of May 29, 2026, the average yearly pay for senior full stack web developer in Washington is $133,511.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,600.00 and $145,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Senior Full Stack Web Developer, and why are they important?

To thrive as a Senior Full Stack Web Developer, you need advanced proficiency in both front-end (e.g., JavaScript, React, HTML/CSS) and back-end (e.g., Node.js, Python, databases) technologies, typically backed by a computer science degree or equivalent experience. Expertise with version control systems like Git, cloud platforms (AWS, Azure), and familiarity with CI/CD pipelines or relevant certifications are highly valuable. Strong problem-solving, leadership, and communication skills help you effectively collaborate and mentor junior developers. These skills are crucial for delivering robust, scalable applications and leading projects across diverse technical and team environments.

How does a Senior Full Stack Web Developer typically collaborate with cross-functional teams on large-scale projects?

Senior Full Stack Web Developers frequently work alongside designers, product managers, QA engineers, and other developers to deliver feature-rich web applications. They participate in sprint planning, code reviews, and architectural discussions, ensuring alignment between front-end and back-end solutions. Effective communication is crucial, as they often translate technical concepts for non-technical stakeholders and help integrate feedback from different departments. This collaborative approach not only improves product quality but also provides valuable leadership opportunities within the development team.

What is a Senior Full Stack Web Developer?

A Senior Full Stack Web Developer is an experienced software professional who designs, develops, and maintains both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to build user interfaces, server-side logic, databases, and APIs. Senior-level developers also often lead teams, make architectural decisions, and mentor junior developers. Their expertise ensures that web applications are scalable, secure, and efficient from end to end.

What is the difference between Senior Full Stack Web Developer vs Front End Developer?

AspectSenior Full Stack Web DeveloperFront End Developer
Required SkillsProficiency in both front-end and back-end technologies, including JavaScript, HTML, CSS, server-side languages, databasesExpertise in HTML, CSS, JavaScript, and front-end frameworks like React or Angular
Work EnvironmentFull-stack development teams, both client and server-side projectsPrimarily UI/UX design, front-end frameworks, and client-side scripting
Common UsageUsed across startups, tech companies, and agencies requiring comprehensive development skillsUsed in projects focusing on user interface, visual design, and user experience

The main difference between a Senior Full Stack Web Developer and a Front End Developer lies in scope. The senior full stack role covers both front-end and back-end development, requiring broader skills and experience, while the front end developer specializes in creating and optimizing the user interface and experience.

What are the most commonly searched types of Full Stack Web Developer jobs in Washington? The most popular types of Full Stack Web Developer jobs in Washington are:
What are popular job titles related to Senior Full Stack Web Developer jobs in Washington? For Senior Full Stack Web Developer jobs in Washington, the most frequently searched job titles are:
What job categories do people searching Senior Full Stack Web Developer jobs in Washington look for? The top searched job categories for Senior Full Stack Web Developer jobs in Washington are:
What cities in Washington are hiring for Senior Full Stack Web Developer jobs? Cities in Washington with the most Senior Full Stack Web Developer job openings:
Senior Full Stack Web Developer jobs near you
Infographic showing various Senior Full Stack Web Developer job openings in Washington as of May 2026, with employment types broken down into 68% Full Time, 21% Part Time, and 11% Contract. Highlights an 100% Physical job distribution, with an average salary of $133,511 per year, or $64.2 per hour.
Senior Full-Stack Engineer

Senior Full-Stack Engineer

Elder Research

Arlington, VA • On-site, Remote

Other

Posted 27 days ago

Job description

Senior Full-Stack Engineer

General Information

Requisition # 692

Locations USA-VA-Arlington

Posting Date 05/01/2026

Security Clearance Required - Active Public Trust

Remote Type Hybrid

Time Type Full time

Description & Requirements

Elder Research Inc., a wholly owned subsidiary of MANTECH international Corporation seeks a motivated, career and customer-oriented Senior Full-Stack Engineer to join our team in Arlington, VA who will help lead development of the analytics platform. This is a high-ownership role: you'll drive front-end architecture decisions, contribute meaningfully to Python backend services, mentor engineers on the team, and ship complex features end-to-end.

The balance between front-end and back-end work in this role evolves with the productsome sprints emphasize UI development, while others focus on Python-based pipelines and document-processing services. Were seeking a true full-stack engineer who is equally comfortable operating across both layers and can adapt as priorities shift, rather than someone with a strong bias toward one side of the stack.

As a Sr. Full-Stack Engineer, you will lead front-end architecture for a growing internal platform, driving component design, state management, routing, and performance optimization, while also contributing to Python backends that power document processing, OCR, summarization, and inference pipelines. You will build end-to-end large-scale PDF upload workflows with chunking, resumability, progress feedback, and robust error handling, supported by scalable Python services, and develop interactive prompt-guidance and conversation continuity features, including context upload and deep integration with OCR and inference systems.

Responsibilities include but are not limited to:

  • Build and maintain strongly typed front-end components using TypeScript and React, including complex document and conversation workflows integrated with Python services
  • Develop advanced file upload interfaces with chunking, resumable flows, progress tracking, and resilient error handling
  • Leverage browser APIs (File API, Streams, Web Workers) and optimize front-end performance
  • Lead front-end architecture decisions, design reviews, and establish component standards
  • Develop and extend Python backend utilities for document processing, chat/inference, OCR, and pipeline orchestration
  • Write Python scripts for QA automation, data validation, CI/CD, and support serverless/containerized workflows
  • Mentor engineers, lead technical discussions, and produce clear internal documentation
  • Ensure accessibility (WCAG 2.1 / Section 508), testing coverage, and strong GitHub/CI/CD governance practices

Minimum Qualifications:

  • Expert-level TypeScript and React, with a track record of owning complex front-end systems end-to-end
  • Strong, production-grade Python skills: not just scripting, but building and maintaining backend utilities, integrating with microservices, and contributing to data and inference pipelines
  • Comfort moving fluidly between front-end and backend work sprint-to-sprint without a strong preference for either
  • Proven delivery of large-file upload systems (chunking, resumable uploads, error recovery)
  • Hands-on experience with browser APIs (File API, Streams, Web Workers) and front-end performance profiling
  • Experience mentoring engineers and leading technical design discussions
  • Strong Git/GitHub fluency and CI/CD experience
  • Demonstrated accessibility experience hands-on work with WCAG or Section 508 compliance

Preferred Qualifications:

  • Experience building analytics or AI-assisted internal tooling
  • Familiarity with OCR and document-processing systems
  • Experience with serverless architectures (Lambda, S3-based pipelines)
  • Experience in regulated or security-conscious development environments
  • Comfort working in cross-disciplinary teams alongside data scientists and cloud engineers

Clearance Requirements:

  • Must have a current/active Public Trust at time of hire.

About Elder Research, Inc - People Centered. Data Driven

Elder Research considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with Elder Research, please email us at careers@elderresearch.com and provide your name and contact information.

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