Full-Stack Engineer (TS/SCI): Secure Backend & Microservices

Vantor; McLean (VA); On-site; USD 95,000 - 140,000; Full time

Benefits offered by this job

401(k) with company match

Mental health resources

Student loan repayment assistance

Adoption reimbursement

Pet insurance

Job summary

Vantor is seeking a Full Stack Developer with a strong backend and platform engineering focus to design, build, and optimize scalable, secure systems supporting mission-critical applications. This role emphasizes API design, microservices, data persistence, and operational excellence in a high-concurrency environment.

You will design and maintain RESTful and GraphQL APIs, implement containerized microservices with Kubernetes, manage databases (PostgreSQL, MySQL, MongoDB), and contribute to CI/CD

Qualifications

• Bachelor's degree in computer science or related field.
• Developmental Labor Category: Minimum 1 year of experience with a Bachelor’s degree; or 2 years with an Associate’s; or 3 years with a high school diploma or GED.
• Active/current TS/SCI with required polygraph
• Willingness to work onsite full time
• US citizenship required
• Strong experience with server-side development and API design (REST and GraphQL)
• Proven experience building and operating microservices architectures
• Hands-on experience with Docker and container orchestration platforms (Kubernetes)
• Strong experience with relational databases (PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB)
• Expertise in schema design, query optimization, indexing, migrations, and high-volume data performance
• Experience building and maintaining CI/CD pipelines for automated delivery
• Working knowledge of modern frontend technologies (JavaScript, React, or Lit) sufficient for close collaboration with UI teams
• Experience optimizing systems using caching, load balancing, and asynchronous processing techniques

Responsibilities

• Design, develop, and maintain scalable backend services supporting RESTful and GraphQL APIs
• Architect and implement microservices-based systems using containerized deployments
• Optimize backend performance through caching, queueing, and efficient data-access patterns
• Design and manage relational and NoSQL databases, ensuring reliability, performance, and data integrity
• Build and maintain CI/CD pipelines to automate testing, deployment, and monitoring
• Collaborate closely with frontend developers to ensure seamless integration and optimal user experience
• Support production systems through monitoring, troubleshooting, and performance tuning

Skills

REST and GraphQL APIs

Microservices architectures

Backend performance

Frontend collaboration

Data persistence

Education

Bachelor's degree in computer science or related field

Tools

Docker

Kubernetes

PostgreSQL

MySQL

MongoDB

Redis

Job description

Vantor is seeking a Full Stack Developer with a strong backend and platform engineering focus to design, build, and optimize scalable, secure systems supporting mission-critical applications. This role emphasizes API design, microservices, data persistence, and operational excellence in a high-concurrency environment.

You will design and maintain RESTful and GraphQL APIs, implement containerized microservices with Kubernetes, manage databases (PostgreSQL, MySQL, MongoDB), and contribute to CI/CD