Full Stack Developer

RMantra Solutions; Alexandria, Northern (VA, KY); Hybrid; USD 140,000 - 190,000; Full time

Job summary

RMantra Solutions is seeking an experienced full-stack engineer for an onsite Arlington, VA role. You will design, develop, test, and maintain front-end and back-end systems, APIs, and databases, in an Agile setting.

You will implement responsive UI, build scalable services, modernize databases, and contribute to CI/CD and DevSecOps practices, including cloud adoption and security hardening. This role requires TS/SCI eligibility with CI Poly and a BA/BS in IT with 8+ years in IT.

Qualifications

• BA/BS in Information Technology or related field.
• 8+ years of IT experience with full-stack development.
• Security clearance: TS and SCI eligible with CI poly.
• Experience across front-end, back-end, and database layers.
• Hands-on with CI/CD, automated testing, and DevSecOps.

Responsibilities

• Design, develop, test, and maintain full-stack applications (UI, API, data access).
• Implement responsive front-end features and collaborate with UX/design.
• Build and maintain back-end services and APIs with data access patterns.
• Develop and evolve a modernized database architecture, incl. cloud adoption.
• Create optimized queries; ensure data integrity and performance.
• Write automated tests and participate in code reviews.
• Troubleshoot defects; support production and lower environments.
• Produce API docs and runbooks; align with program needs.
• Improve reliability via monitoring, incident response, and CI/CD tooling.

Skills

Full-stack development

Front-end development

Back-end development

CI/CD

DevSecOps

Cloud technologies

REST APIs

Agile / Scrum

Education

BA/BS in Information Technology

Tools

Ansible

Terraform

JMETER

EC2

ELB

RDS

Lambda

Docker

Job description

This position is 100% Onsite. This position is in Arlington, VA, with occasional/situational travel.

Certificate

N/A

Location:

Schedule

100% onsite

Clearance

US Citizens withDOD Top Secret

• Design, develop, test, and maintain full-stack applications (UI, service/API layer, and data access layer) in an Agile delivery environment.
• Implement responsive, user-friendly front-end features and collaborate with UX/design to ensure usable, accessible experiences.
• Build and maintain back-end services and APIs; implement business logic, integrations, and data access patterns.
• Develop, maintain, and evolve a modernized database architecture aligned to modernization initiatives, including cloud adoption.
• Create and optimize database queries and data models; ensure data integrity and performance.
• Write automated tests and participate in code reviews to improve quality, security, and maintainability.
• Troubleshoot, debug, and resolve defects across the stack; support production and lower-environment issue resolution as required.
• Produce technical documentation (design notes, API documentation, and operational runbooks) aligned to program needs.
• Operate and improve reliability/availability through monitoring, alerting, incident response, and continual service improvement.
• Produce and maintain technical documentation (build guides, runbooks, diagrams, and operational procedures).
• Stage new and upgraded services components or services to integration and testing environment.
• Develop and engineer improvements to the infrastructure and architecture to support continuous development and continuous integration utilizing modern practices and tools.
• Support and perform deployment orchestration, automation, and security configuration management (i.e., CloudFormation, Terraform, Ansible, GitLab, Bitbucket).
• Maintain documentation of code developed in support of CESO environments.
• Support patching, logging, vulnerability scanning, and compliance tracking.
• Participate in the release management process.
• Participate in Agile ceremonies (daily stand-ups, sprint planning, retrospectives) and Jira-based task tracking.

Required Qualifications

• Candidate must currently have a TS and SCI eligible with the ability to obtain and maintain a CI Poly.
• BA/BS and 8 years minimum of experience in Information Technology.
• Demonstrated experience developing and supporting applications across the full stack (front-end + back-end + database).
• Experience with back-end development concepts such as APIs, server-side logic, and database interaction.
• Hands-on technical experience in at least three of the following areas: Oracle, SQL Server, Java, engineered systems, cloud technologies, data integration, automated testing and deployments, and DevSecOps.
• Strong background in automated testing, CI/CD, and modern software delivery practices.
• Ability to work effectively with cross-functional teammates and contribute across the full development lifecycle.
• 4 years’ experience with tools to include Ansible, Terraform, JMETER, EC2, ELB, RDS, Lambda, Docker.
• Experience with deployment orchestration, automation, and security configuration management (i.e., CloudFormation, Terraform, Ansible, GitLab, Bitbucket)

Preferred Qualifications

• Prior experience with DISA and DISA’s support to mission partners.

Join a dynamic team where your ideas matter and your career thrives.