Full Stack Developer

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.