ZipRecruiter

Log In

1

Junior Mern Stack Developer Jobs in Washington (NOW HIRING)

Pantheon Data

Senior Full Stack Developer

Reston, VA · On-site

$145K - $200K/yr

Mentor junior developers and contribute to code review, design review, and engineering standards ... stack development responsibility. * Strong proficiency in at least one back-end language such as ...

CACI

Full Stack Developer

Herndon, VA · On-site

$105K - $231K/yr

Full Stack Developer Job Category: Information Technology Time Type: Full time Minimum Clearance ... Provide technical leadership and guidance to junior developers through code reviews and best ...

CACI

Full Stack Developer

Springfield, VA · On-site

$90K - $189K/yr

Full Stack Developer Job Category: Information Technology Time Type: Full time Minimum Clearance ... Provide technical leadership and guidance to junior developers through code reviews and best ...

CACI

Full Stack Developer

Springfield, VA · On-site

$105K - $231K/yr

Full Stack Developer Job Category: Information Technology Time Type: Full time Minimum Clearance ... Provide technical leadership and guidance to junior developers through code reviews and best ...

Analytica

Full Stack Developer

Bethesda, MD · On-site

For senior-level candidates, provide technical leadership, mentor junior developers, and contribute ... Stack Developer, Software Engineer, or similar technical role. * Experience developing web ...

Analytica

Full Stack Developer

Bethesda, MD · On-site

For senior-level candidates, provide technical leadership, mentor junior developers, and contribute ... Stack Developer, Software Engineer, or similar technical role. * Experience developing web ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Participate in scoping/architecture conversations and mentor junior engineers as needed REQUIRED ... Full stack experience with a backend-heavy focus ( 70/30 backend/frontend ) * Java 17+ required ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Participate in scoping/architecture conversations and mentor junior engineers as needed REQUIRED ... Full stack experience with a backend-heavy focus ( 70/30 backend/frontend ) * Java 17+ required ...

Steampunk

Full Stack Developer

Mclean, VA · Remote

$85K - $170K/yr

Overview As a Full Stack Developer , you will work with our growing DevSecOps practice delivering ... Act as an individual contributor while mentoring junior team members. * Engineer and implement ...

Steampunk

Full Stack Developer

Mclean, VA · Remote

$85K - $170K/yr

As a Full Stack Developer , you will work with our growing DevSecOps practice delivering software ... Act as an individual contributor while mentoring junior team members. * Engineer and implement ...

System One

Sr Java Full Stack Developer

Reston, VA · Remote

$97/hr

Participate in scoping/architecture conversations and mentor junior engineers as needed REQUIRED ... Full stack experience with a backend-heavy focus ( 70/30 backend/frontend ) * Java 17+ required ...

previous pagenext page

Showing results 21-40

All JobsMern Stack Developer JobsJunior Mern Stack Developer JobsJunior Mern Stack Developer Jobs in Washington

Junior Mern Stack Developer information

See Washington salary details

$27.2K

$100.8K

$155.7K

How much do junior mern stack developer jobs pay per year?

As of Sep 6, 2026, the average yearly pay for junior mern stack developer in Washington is $100,773.00, according to ZipRecruiter salary data. Most workers in this role earn between $75,900.00 and $98,500.00 per year, depending on experience, location, and employer.

What is a junior MERN Stack Developer?

A Junior MERN Stack Developer is an entry-level software developer who specializes in building web applications using the MERN stack, which consists of MongoDB, Express.js, React, and Node.js. They assist in developing, testing, and maintaining both front-end and back-end components of web applications. Typical responsibilities include writing clean code, fixing bugs, collaborating with senior developers, and integrating APIs. Strong foundational knowledge of JavaScript, database management, and version control (e.g., Git) is essential. This role is ideal for individuals looking to gain hands-on experience and grow their skills in full-stack development.

What kind of projects or tasks might a junior MERN Stack Developer typically work on?

As a Junior MERN Stack Developer, you will often be involved in building and maintaining web applications, implementing new features, and fixing bugs within the application stack. Your day-to-day work may include writing code for both front-end (using React.js) and back-end (using Node.js and Express), working with databases like MongoDB, and collaborating closely with other developers, designers, and project managers. You may also be asked to participate in code reviews, contribute to team discussions on architecture or user experience, and learn best practices for scalable and maintainable code. This hands-on experience helps you develop your technical skills and prepares you for more advanced responsibilities as your career progresses.

What are the key skills and qualifications needed to thrive in the junior MERN Stack Developer position, and why are they important?

To thrive as a Junior MERN Stack Developer, you need a solid understanding of JavaScript, React.js, Node.js, Express, and MongoDB, typically supported by a relevant degree or coding bootcamp. Familiarity with version control systems like Git, Agile development practices, and basic knowledge of RESTful APIs are highly valued, while certifications in web development can enhance your candidacy. Strong problem-solving abilities, good communication skills, and a willingness to learn enable effective collaboration and growth in this role. These skills and qualities are essential for building efficient web applications and contributing successfully to dynamic development teams.

What are the most commonly searched types of Mern Stack Developer jobs in Washington?

The most popular types of Mern Stack Developer jobs in Washington are:

What are popular job titles related to Junior Mern Stack Developer jobs in Washington?

For Junior Mern Stack Developer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Junior Mern Stack Developer jobs in Washington look for?

The top searched job categories for Junior Mern Stack Developer jobs in Washington are:

What cities in Washington are hiring for Junior Mern Stack Developer jobs?

Cities in Washington with the most Junior Mern Stack Developer job openings:

Junior Mern Stack Developer jobs near you
Infographic showing various Junior Mern Stack Developer job openings in Washington as of August 2026, with employment types broken down into 86% Full Time, 3% Part Time, 2% Temporary, 8% Contract, and 1% Nights. Highlights an 81% Physical, 4% Hybrid, and 15% Remote job distribution, with an average salary of $100,773 per year, or $48.4 per hour.

Senior Full Stack Developer

Pantheon Data

Reston, VA • On-site

$145K - $200K/yr

Full-time

Posted 10 days ago

Key responsibilities

  • Design, develop, and maintain front-end and back-end components for modern web applications and internal engineering tools.

  • Build and integrate APIs, microservices, and data-backed application components, and support integrations with AI/ML workflows and data systems.

  • Contribute to cloud-native application development, support CI/CD pipelines, and implement secure software development practices.

Job description

Company Overview
Pantheon Data (a Kenific Holding company) is a private, small business based in the Washington, DC, area. Pantheon Data was founded in 2011, initially providing acquisition and supply chain management services to the US Coast Guard. Our service offerings have grown in the past ten years, including infrastructure resiliency, contact center operations, information technology, software engineering, program management, strategic communications, engineering, and cybersecurity. We have also grown our customer base to include commercial clients. The company has used this experience to expand our service offerings to other agencies within the Department of Homeland Security (DHS), the Department of Defense (DoD), and other Federal Civilian Agencies.
Position Overview
We are seeking a hands-on Senior Full Stack Developer to design, build, integrate, and maintain modern software systems that support complex government and commercial technology programs. The right candidate is a strong engineer who can move comfortably across the stack: user interfaces, APIs, services, databases, cloud infrastructure, DevSecOps pipelines, observability, security controls, and system integrations.
This role is intended for a senior individual contributor who can work independently, make sound implementation decisions, and help raise the technical quality of the team. The ideal candidate should show the judgment, curiosity, and ownership needed to take a loosely defined technical problem, reason through the tradeoffs, and turn it into working, maintainable software.
Experience with AI/ML-enabled applications, document processing, data platforms, or secure cloud environments is valuable as well, but the core requirement is full stack engineering depth: the ability to build reliable features, understand system boundaries, debug across layers, and deliver software that is usable, secure, and supportable.
Responsibilities
Full Stack Application Development
  • Design, develop, and maintain front-end and back-end components for modern web applications and internal engineering tools.
  • Build responsive, usable interfaces using modern JavaScript/TypeScript frameworks such as React, Angular, or Vue.
  • Develop APIs, services, and integration layers using technologies such as Python, Java/Spring Boot, Node.js, or comparable frameworks.
  • Translate product, customer, and engineering needs into working features with clear technical designs and maintainable code.

APIs, Data, and System Integration
  • Build and integrate RESTful APIs, microservices, and data-backed application components.
  • Work with relational and non-relational databases, search systems, object storage, and data services as required by the application architecture.
  • Support integrations with AI/ML workflows, document processing pipelines, metadata services, graph/data systems, or retrieval-based applications where applicable.
  • Understand how data flows through the application and help ensure that features are traceable, testable, and reliable.

Cloud, DevSecOps, and Delivery
  • Contribute to cloud-native application development using AWS, Azure, GCP, or secure government cloud environments as needed.
  • Work within CI/CD pipelines and support automated build, test, scan, deploy, and release processes.
  • Develop and maintain containerized applications using Docker and, where applicable, Kubernetes, Helm, or related deployment tooling.
  • Participate in secure software development practices, including dependency scanning, static analysis, container scanning, secrets handling, and vulnerability remediation.

Quality, Reliability, and Maintainability
  • Write unit, integration, and end-to-end tests appropriate to the application and deployment environment.
  • Debug issues across UI, API, database, infrastructure, security, and deployment layers.
  • Support operational visibility through logging, metrics, dashboards, runbooks, and practical troubleshooting documentation.
  • Refactor and improve existing codebases to reduce technical debt, improve security, and make systems easier to extend.

Collaboration and Technical Communication
  • Work closely with architects, data engineers, ML engineers, DevSecOps engineers, UI/UX contributors, and customer-facing team members.
  • Communicate tradeoffs clearly to technical and non-technical stakeholders.
  • Mentor junior developers and contribute to code review, design review, and engineering standards.
  • Document APIs, workflows, configuration decisions, and operational procedures for future maintenance.

Required Skills and Experience
  • Bachelor's degree in Computer Science, Engineering, or a related technical field from an ABET accredited university.
  • 7+ years of hands-on software engineering experience, with meaningful full stack development responsibility.
  • Strong proficiency in at least one back-end language such as Python, Java/Spring Boot, Node.js/TypeScript, or a comparable modern application stack.
  • Strong front-end development experience using React, Angular, Vue, or similar frameworks, with the ability to build usable, maintainable interfaces.
  • Experience designing, building, and consuming RESTful APIs and service-oriented or microservice-based architectures.
  • Practical database experience with SQL and/or NoSQL systems, including schema design, query patterns, integration, and performance considerations.
  • Experience working in Git-based development workflows with code review, branching, pull/merge requests, and release coordination.
  • Hands-on experience with automated testing, CI/CD pipelines, build tooling, and deployment processes.
  • Familiarity with containerized development and deployment using Docker; Kubernetes, Helm, or GitOps experience is a strong plus.
  • Ability to debug complex issues across application, data, infrastructure, security, and deployment boundaries.
  • Strong written and verbal communication skills, attention to detail, and ability to work effectively in a remote or hybrid cross-functional team.
  • Ability to meet deadlines and produce quality work.
  • Proficient in Microsoft Suite software including Outlook, Word, Excel, SharePoint, and PowerPoint.

Preferred Skills and Experience
  • Experience developing applications in secure government, DoD, FedRAMP, air-gapped, or compliance-driven environments.
  • Experience with AWS, Azure, or GCP application deployments, especially cloud-native applications and secure network architectures.
  • Experience with Infrastructure as Code, DevSecOps practices, vulnerability scanning, SBOM generation, dependency management, and secure release pipelines.
  • Experience integrating with AI/ML systems, intelligent document processing, RAG workflows, search systems, graph databases, or data-rich applications.
  • Experience with authentication and authorization patterns such as OIDC, SSO, RBAC, ABAC, mTLS, or API gateway/reverse-proxy integration.
  • Experience with observability tooling such as ELK/OpenSearch, Splunk, Grafana, Prometheus, CloudWatch, or similar platforms.
  • Experience mentoring junior engineers or helping establish practical engineering standards.

Clearance Requirements
Applicants selected will be subject to a security investigation and may need to meet eligibility requirements. Secret Clearance is required for continued employment.
Work Location: Reston, VA - Remote
  • Our company prioritizes the benefits of flexibility and collaboration, whether that happens in person or remotely.
  • If the position is remote or hybrid, you may periodically work from a Pantheon Data office location or client site.
  • If this position is assigned to a Pantheon Data office location or client site, you'll work with colleagues and clients in person, as needed for specific client requirements.

Interview Requirement: Candidates who are local to the area should be prepared to participate in an in-person interview as part of the selection process. Candidates outside the local area may be considered for a virtual interview.
Compensation
The salary range for this position is $145,000 - $200,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
Benefits Overview
We are always looking for good people! Pantheon Data is committed to providing its employees with competitive salaries and benefits in order to increase employee satisfaction and productivity. In addition to our benefits, we also offer SmartBenefits through the Washington Metro Area Transportation Authority, where you specify an amount of your pre-tax wages be paid directly to your SmarTrip account. In some cases, tuition assistance may be available for continuing education expenses and certifications related to their position. Additional details may be found at
Pantheon Data Important Information
All qualified applicants will be considered for employment without regard to disability, status as a protected veteran, or any other status protected by applicable federal, state, local, or international law.
As part of the application process, you are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud.
If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please direct your inquiries to our Talent Team at or by phone (571) 363-4020.
This company uses E-Verify to confirm each employee's work authorization. For more information, click here

Apply