Lead Full Stack Developer

KMM Technologies, Inc.; Reston (VA); Hybrid; USD 140,000 - 180,000; Full time

Job summary

KMM Technologies, Inc. in Rockville, MD / Tysons Corner, VA is seeking a Lead Full Stack Developer to drive technical design and delivery of enterprise-grade financial tech solutions.

You will own design decisions, lead features, review code, and mentor engineers, while upholding quality and reliability. This role requires hands-on development, strong leadership, and a track record of delivering scalable software in an Agile environment.

Qualifications

• Proven track record designing, architecting, and deploying production-grade applications.
• Experience leading technical delivery for teams of 3-6 engineers.
• Hands-on development with object-oriented programming and database technologies.
• Exposure to Agile methodologies, sprint planning, and delivery forecasting.
• Experience automated testing, CI/CD, and configuration management.

Responsibilities

• Own driving design decisions and deliver complex features.
• Mentor junior engineers and perform code reviews.
• Maintain high standards of code quality and reliability.

Skills

Full stack development

Technical leadership

Angular 18+

RxJS

Ngx Formly

Monorepo architecture

CI/CD pipelines

Jenkins

GitHub Actions

Playwright/TypeScript

End-to-end testing

Event-driven architecture

AWS Lambda

SQS/SNS

DynamoDB

ECS

Tools

Jenkins

GitHub Actions

Job description

Location: Rockville, MD OR Tysons Corner, VA (3 days onsite)

Duration: 12+ Months

Project Description

We are seeking a Lead Full Stack Developer to drive technical design, delivery execution, and engineering excellence for enterprise-grade financial technology solutions. This role combines deep hands-on development with technical leadership — you will own driving design decisions, lead delivery of complex features, perform code reviews, and mentor junior engineers while maintaining the highest standards of code quality and system reliability.

• Proven track record of designing, architecting, and deploying production-grade applications using object-oriented programming principles and database technologies
• Experience leading technical delivery for teams of 3-6 engineers

Agile Development Background

• Hands-on experience building enterprise-level solutions within iterative development methodologies and Agile frameworks
• Experience with sprint planning, estimation, and delivery forecasting

Software Engineering Best Practices

• Proficiency with industry-standard development practices including automated testing frameworks, continuous integration/deployment pipelines, and configuration management tools
• Experience establishing and maintaining engineering standards for a team

Core Technology Stack

• Experience with Angular 18 or later versions for modern web application development, RxJS, Ngx Formly, monorepo architecture
• Ability to design component architectures and establish reusable patterns for the team

Quality Assurance & Testing

• Ability to develop comprehensive end-to-end tests using Playwright with TypeScript, along with integration and performance testing capabilities
• Experience defining testing strategies and ensuring team-wide adoption of quality practices

DevOps & CI/CD

• Strong experience implementing continuous integration and deployment workflows using Jenkins and/or GitHub Actions
• Ability to optimize pipeline performance and establish deployment best practices
• Expertise in designing and implementing event-driven architectures leveraging:
• Messaging services (SQS/SNS)
• Serverless computing (AWS Lambda)
• API Gateway, Step Functions
• Data storage solutions (S3, RDS, DocumentDB, DynamoDB)
• Container orchestration (ECS)
• Experience making infrastructure decisions and designing for scalability, reliability, and cost efficiency