cover image
Seneca Resources

Full Stack Developer

Hybrid

Arlington, United states

$ 40 /hour

Mid level

Freelance

07-01-2026

Share this job:

Skills

Python JavaScript C# TypeScript HTML CSS Jira SQL NoSQL Data Governance MySQL CI/CD DevOps Version Control Test Scrum Architecture Databases apache git jquery angular Azure react node.js Back-end Development AWS Django Confluence Agile .NET Flask Full-Stack Development CI/CD Pipelines Web Development Databricks Kafka Microservices gRPC

Job Specifications

Position Title: Full Stack Developer

Location: Rosslyn, VA (Hybrid – flexible telework; on-site ~2 days per 2-week period)

Clearance Requirements: Public Trust or ability to obtain

Position Status: Contract

Pay Rate: $40/hr on W2

Position Description:

We are seeking a highly skilled Full Stack Developer to design, build, and support modern, scalable web applications that support complex analytical and data-driven use cases. In this role, you will collaborate closely with data scientists, analysts, product owners, and end users to deliver high-impact solutions using modern front-end and back-end technologies within an Agile environment.

This is an excellent opportunity for a senior-level developer who enjoys working across the full technology stack, contributing to architecture decisions, modernizing legacy systems, and building secure, cloud-based applications in Azure.

Key Responsibilities:

Design, develop, test, deploy, and maintain full-stack web applications using modern frameworks and cloud technologies
Collaborate with data scientists and analysts to deliver applications that process and visualize large datasets
Design and implement scalable client-side and server-side architectures
Build responsive, user-friendly front-end interfaces with strong UI/UX principles
Develop secure, efficient APIs and integrate REST and gRPC-based services
Administer, configure, and automate Jira and Confluence Cloud environments, including workflows, permissions, and automation rules
Develop and maintain custom solutions using ScriptRunner (Groovy) and advanced JQL
Manage identity, access, and security integrations using Microsoft Entra ID (Azure AD), including SSO and API credential management
Support DevOps practices including CI/CD pipelines, Git-based version control, and automated testing
Migrate legacy systems to modern, cloud-native architectures
Produce clear technical documentation and support data governance initiatives
Function effectively within Agile/Scrum teams and contribute to continuous improvement

Required Skills / Education:

Education & Certifications:

Bachelor’s degree in Computer Science, Web Development, or a related field
Relevant professional certifications in web, front-end, or back-end development (required)

Core Technical Skills:

5+ years of full-stack development experience
3+ years of professional JavaScript development (client-side and server-side)
Strong proficiency in Python, JavaScript, SQL, and/or C#
Front-end technologies: HTML, CSS, JavaScript, TypeScript, jQuery
Front-end frameworks: Angular, React, Node.js
Back-end frameworks: Flask, Django, .NET
Experience with RESTful APIs, gRPC, and API integrations
Database experience with MySQL, Teradata, NoSQL databases
Web server experience (Apache or similar)
Strong web application and UI/UX design experience

Cloud, DevOps & Tools:

Expertise in the Azure cloud environment (required)
Experience with AWS is a plus
DevOps experience using Git, CI/CD pipelines, automated testing
Experience with Kafka, EventHub, WebSockets (preferred)
Familiarity with Databricks is a plus

Atlassian & Automation Expertise:

Advanced administration of Jira Software Cloud, Confluence Cloud, and Atlassian Guard
Mastery of Jira configuration (workflows, issue types, fields, screens, permissions)
Expert-level JQL skills
Strong experience developing complex Automation Rules using APIs and Smart Values
Advanced ScriptRunner for Jira/Confluence Cloud experience using Groovy

Methodologies & Architecture:

Strong experience with Agile and Scrum methodologies
Knowledge of architectural patterns: Monolith, Microservices, Serverless, Service Mesh
Experience supporting agile teams and collaborating with PMO functions is a plus

About Seneca Resources

At Seneca Resources, we are more than just a staffing and consulting firm—we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact.

When you work with Seneca, you’re choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.

Seneca Resources is proud to be an Equal Opportunity Employer and is committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.

About the Company

Seneca Resources is an Information Technology and Engineering professional services firm supporting clients in the public and private sectors. For over 15 years, Seneca Resources has successfully delivered services and solutions to organizations ranging from small businesses to Fortune 100 companies and numerous branches of the Federal Government. Areas of technical and functional expertise include: CIO and CTO Services / CISO Services / ERP Solutions / Managed Security Services / CRM Solutions / Data Analytics / Utility S... Know more