Web developer jobs in Bethesda, MD and nearby

Within 25 miles

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Added 22 days ago
Web Application Developer
SAIC
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QVine, an SAIC company, is seeking an experienced Full Stack Web Application Developer to join our team. This role involves hands-on technical expertise in building modern, scalable web…
Added 24 days ago
Web Developer - Department of State
Censeo Consulting Group
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As a Web Developer with Censeo, you will support public-facing reporting for a key Department of State program. You will work closely with DOS teams to develop dashboards and manage public…
Added 24 days ago
IT Web Developer
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We believe happy employees do amazing work, so join our team NOW! We are currently seeking a talented and motivated IT Web Developer for a Full-Time position.
Added 24 days ago
Senior Python Backend Developer - Onsite
Cognizant
Washington, DC
We are looking for an experienced Senior Python Backend Developer with 8+ years of software development experience and strong expertise in Python, FastAPI, PostgreSQL/SQL, and backend…
Added 24 days ago
Product Architect/Full Stack Developer
CACI International
Ashburn, VA
Job Title: Product Architect/Full Stack Developer
Added 24 days ago
Full Stack Developer
CACI International
Springfield, VA
CACI is seeking a highly skilled Senior Full Stack Developer to join our development team. In this role, you will be responsible for designing, developing, and maintaining sophisticated web…
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Front-End Developer - TS/SCI with Polygraph
General Dynamics Information Technology
Springfield, VA
Agile Methodology,Agile Software Development,Web Applications
Added 24 days ago
Full Stack Developer
CACI International
Springfield, VA
CACI is seeking an experienced Full Stack Developer to support the design, development, operations, and sustainment of mission-critical applications, data analytics products, and services.…
Added 24 days ago
Full Stack Developer
CACI International
Sterling, VA
We are seeking a Full Stack Developer to join our growing team based in Sterling, VA and Cary, NC. You will serve as a valued member of our development team, building responsive, scalable,…
Added 24 days ago
Full Stack Developer, Senior
CACI International
Sterling, VA
We are seeking a Senior Full Stack Developer to join our growing team based in Sterling, VA or Carry, NC. You will serve as a key member of our development team, building responsive,…
Added 24 days ago
Sr Full Stack Developer
General Dynamics Information Technology
Fairfax, VA
GDIT is seeking an experienced Full Stack Developer with strong Python expertise to support fixes, enhancements, and ongoing maintenance for a large, production web application in support…
Added 24 days ago
Full Stack Developer (Java/Spring/Hibernate)
General Dynamics Information Technology
Fairfax, VA
Agile Methodology,Artificial Intelligence Techniques,Java Web Development,Python Software Development,React.js
Added 24 days ago
Full Stack Web Developer
CACI International
Herndon, VA
CACI is seeking a Full Stack Web Developer to create custom enterprise web application solutions to support the National Security Mission. The candidate will have extensive knowledge of…
Added 24 days ago
Web Application Developer with Polygraph
CACI International
Herndon, VA
Job Title: Web Application Developer with Polygraph
Added 24 days ago
Full Stack Developer
Stillwater Human Capital
Chantilly, VA
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Added 24 days ago
Full-Stack Web Developer
CACI International
Chantilly, VA
CACI is seeking a proactive, cleared Full‑Stack Web Developer who thrives in a fast‑paced environment and enjoys collaborating to create high‑impact solutions. In this role, you will…
Added 24 days ago
Full-Stack Web Developer – WordPress
CACI International
Chantilly, VA
Job Title: Full-Stack Web Developer – WordPress
Added 24 days ago
Full Stack Developer
CACI International
Chantilly, VA
We are seeking a Full Stack developer that is interested and passionate about working as part of a modern, fast-paced agile software development team supporting a ServiceNow implementation.…
Added 24 days ago
Full Stack Developer
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Chantilly, VA
We are seeking a Full Stack developer that is interested and passionate about working as part of a modern, fast-paced agile software development team supporting a ServiceNow implementation.…
Added 24 days ago
Full Stack Developer
CACI International
Chantilly, VA
We are seeking a Full Stack developer that is interested and passionate about working as part of a modern, fast-paced agile software development team supporting a ServiceNow implementation.…
Added 24 days ago
Full Stack Developer
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Chantilly, VA
CACI is seeking a mid-level Full Stack Developer to be a part of a collaborative agile team, providing full life cycle support to all client applications and tools to enable mission. You…
Added 24 days ago
Full Stack Developer
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Chantilly, VA
CANDIDATES MUST HAVE AN ACTIVE TS/SCI w/ Poly
Added 24 days ago
Web Developer Mid
CACI International
Chantilly, VA
CACI is seeking a Web Developer to act as a member of an AGILE development team working with HTML5, JavaScript, Bootstrap, CSS, C#.NET, SQL, Ruby on Rails, Artificial Intelligence, and…
Added 24 days ago
Web Developer Mid
CACI International
Chantilly, VA
CACI is seeking a Web Developer to act as a member of an AGILE development team working with HTML5, JavaScript, Bootstrap, CSS, C#.NET, SQL, Ruby on Rails, Artificial Intelligence, and…
Added 24 days ago
Web Developer Mid
CACI International
Chantilly, VA
CACI is seeking a Web Developer to act as a member of an AGILE development team working with HTML5, JavaScript, Bootstrap, CSS, C#.NET, SQL, Ruby on Rails, Artificial Intelligence, and…

Eccalon LLC

Full Stack Developer

Hanover, MD, United States

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Job details

Experience: 3+ years of experience as a Full Stack Developer shipping production web applications; experience in a DoD, federal contracting, or regulated environment a plus.
Posting language: English
Posted: Feb 26, 2026

Original job description

Full Stack Developer

Location: Hanover, MD- On-site

Type: Full-time

Clearance: No Clearance Required

Job Description

Eccalon is seeking a Full Stack Developer to design, build, and ship production software across a portfolio of DoD, Intelligence, and enterprise programs. You will own features end-to-end - from React front-ends and Next.js applications through Node.js/Python APIs and AWS-hosted data stores - and actively leverage LLM and AI-assisted development techniques to accelerate delivery and enhance product capabilities. You will work closely with cross-functional teams including DevOps, UX/UI design, and program leadership in a security-conscious, compliance-driven environment.

Responsibilities

Design, develop, and maintain full-stack web applications from UI through API to data layer, with ownership of features across the entire delivery lifecycle.
Build front-end architecture and UI components using React and Next.js; create reusable component libraries that support consistent UX across multiple products.
Integrate LLM and AI capabilities into product features using the Anthropic API (Claude) and other model providers; apply prompt engineering, retrieval-augmented generation (RAG), and agentic workflow patterns to build intelligent, context-aware application experiences.
Translate designs and wireframes into high-quality, accessible, responsive code; leverage AI-assisted development tools (e.g., Claude Code) to accelerate implementation without sacrificing quality or security.
Develop and maintain back-end services and REST APIs using Node.js and Python; design for security, scalability, and compliance from the start.
Integrate front-end applications with back-end APIs and AWS cloud services (Cognito, Lambda, API Gateway, DynamoDB, RDS/PostgreSQL); implement authentication flows including OAuth2/OIDC and JIT provisioning.
Implement security and data protection measures aligned to NIST 800-171 and CMMC requirements; apply OWASP Top 10 mitigations and participate in code-level security reviews.
Implement responsive, accessible UI designs (WCAG 2.1) that render consistently across devices and browsers.
Write clean, well-tested, and well-documented code; contribute to and enforce engineering standards through trunk-based development and peer code review.
Conduct thorough code reviews with a focus on security, maintainability, and AI-generated code validation; mentor junior engineers on best practices.
Troubleshoot and debug complex issues across the full stack, including integration points with LLM APIs, cloud services, and third-party authentication providers.
Design and manage relational and NoSQL data models across PostgreSQL, DynamoDB, and MongoDB; optimize queries and data access patterns for performance and cost.
Apply structured prompt engineering techniques - chain-of-thought, few-shot examples, tool use, and system prompt design - to build reliable, production-ready LLM-powered features; evaluate and mitigate prompt injection, hallucination, and data leakage risks.
Partner with UX/UI designers, product managers, and DevOps to deliver features end-to-end; translate program requirements into scalable technical solutions.
Stay current on advancements in LLM/AI tooling, web frameworks, and cloud-native development; bring new techniques back to the team through demos, documentation, and knowledge sharing.

Required Qualifications

Bachelor’s degree in Computer Science, or a related field (or equivalent work experience).
3+ years of experience as a Full Stack Developer shipping production web applications; experience in a DoD, federal contracting, or regulated environment a plus.
Strong proficiency in HTML5, CSS3, JavaScript/TypeScript (ES6+), React, and Next.js; comfort building and documenting reusable component libraries.
Proficiency in Node.js and Python for server-side development; experience with Express.js, Nest.js, and/or Next.js API routes.
Hands-on experience integrating LLM APIs (Anthropic Claude, OpenAI, or similar) into production applications; demonstrated ability to write effective prompts, implement RAG pipelines, and build tool-use/agentic workflows.
Experience with relational databases (PostgreSQL) and NoSQL databases (DynamoDB); comfort writing and optimizing queries and managing schema migrations.
Solid understanding of RESTful API design, microservices architecture, and AWS services (API Gateway, Lambda, Cognito, S3, CloudFront).
Proficiency with Git and trunk-based development workflows; experience with GitHub or GitLab for PR-based collaboration.
Working knowledge of CI/CD pipelines (GitLab CI/CD) and cloud deployment practices on AWS; familiarity with security-focused DevSecOps gates.
Strong analytical and problem-solving skills; ability to work independently across multiple concurrent projects and communicate technical decisions clearly to non-technical stakeholders.
Comfort working in a regulated, compliance-aware environment; familiarity with NIST 800-171, CMMC, or FedRAMP requirements preferred.
Strong interpersonal and communication skills; proven ability to collaborate effectively across engineering, design, DevOps, and program management teams.

Preferred Qualifications

Experience building AI-powered features using RAG, vector databases (e.g., pgvector, Pinecone), or LLM orchestration frameworks (e.g., LangChain, LlamaIndex).
Familiarity with model context protocol (MCP) patterns and structured tool-use design for LLM-integrated applications.
Experience with Azure services (Azure AD, GCC High) or AWS GovCloud in a DoD or federal contracting environment.
Familiarity with TypeScript across both front-end and back-end (Node.js/Next.js) codebases.
Experience with Playwright or Cypress for end-to-end testing of web applications.
Background in UX/UI collaboration with Figma or similar design tooling.

Equal Employment Opportunity (EEO) Policy

Eccalon provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

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More about this job

Skills

Industrial software
React
Next.js
Node.js
Python
AWS
DevOps
UI design
Leadership
Regulatory compliance
Component libraries
Workflow
API development
Amazon DynamoDB
PostgreSQL
Data protection
Troubleshoot
NoSQL
Data models
MongoDB
Computer science
HTML
CSS
JavaScript
TypeScript
RESTful API
Microservices Architecture
Git
GitHub
GitLab
Collaboration
CI/CD
Problem solving
Work independently
Communication skills
Program management
LangChain
Microsoft Azure
Figma

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Web developer jobs in Bethesda, MD and nearby

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