Senior Full-Stack Engineer with AWS

CapTech Consulting•Reston, VA

15h•$90,000 - $190,000•Hybrid

About The Position

CapTech is seeking a Senior Full-Stack Engineer to design, develop, and maintain high-quality enterprise systems, system integrations, and client solutions in a project-based consulting environment. The role contributes to API-driven applications, microservice architectures, event-driven integrations, cloud deployments, serverless applications, and web and portal front ends. Developers work collaboratively with colleagues, architects, and clients, and are encouraged to continually learn and share knowledge.

Requirements

At least 6 years of experience designing, developing, and maintaining applications using the Microsoft stack or Java.
Hands-on experience building and consuming RESTful APIs, including documenting APIs with Swagger/OpenAPI.
Strong background in database design and development, including SQL Server and NoSQL technologies such as AWS.
Front-end development experience with JavaScript or TypeScript, HTML, CSS, and modern frameworks or libraries such as Angular, React, or Vue; working knowledge of UI frameworks such as Bootstrap.
Experience developing agents and developing with agents for Agentic AI.
Experience with varied AI tools, including Claude Code, CodeX, Opencode, and OpenClaude.
Experience with source control systems such as Git and collaborative development workflows.
Familiarity with multi-system integrations, distributed systems, and common enterprise integration challenges.
Understanding of application performance tuning, scalability, and optimization techniques.
Ability to communicate technical concepts, designs, and solutions clearly to technical and non-technical stakeholders.
Strong problem-solving skills and commitment to clean, maintainable, well-documented code.
Must be authorized to work directly for any employer in the United States without visa sponsorship.

Nice To Haves

Preferred experience with AI orchestration.

Responsibilities

Collaborate with team members and clients to deliver technical solutions tailored to client needs.
Create quality deliverables that communicate technical solutions to appropriate audiences.
Use CapTech’s internal programs and self-directed training to continually develop industry-relevant knowledge and skills.
Understand and implement object-oriented design patterns.
Communicate effectively with team members who have varying levels of technical knowledge.
Provide technical mentoring.
Design, develop, and maintain applications and enterprise systems, integrations, and client solutions.

Benefits

Generous paid time off.
Health coverage.
Disability insurance.
Paid family leave.
Certification and tuition support, on-demand learning, mentorship, and skill development paths.
Mental health and well-being services, including individual care, group support, and self-serve resources.
Fertility and family-forming coverage, including adoption, surrogacy, fertility treatments, and pregnancy support.
Company-paid stipend for personalized lifestyle benefits.
Employee Resource Groups.
Opportunities to participate in philanthropic partnerships and pro-bono projects.
401(k) matching with no vesting period.
Flexible work environment and remote work when compatible with company and client needs.