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Assyst

Lead Java Full Stack Developer

Assyst, Washington, District of Columbia, us, 20022

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ASSYST

is seeking a highly experienced and motivated

Lead Java Full Stack Developer

to join our client's dynamic engineering team in

Washington D.C.

The candidate shall

lead a team of talented developers

in designing, building, and deploying enterprise-scale applications using a modern Java and Angular technology stack. The candidate will take complete ownership of the end-to-end project lifecycle, from architectural design to post-release support, while mentoring the team and driving technical excellence. The ideal candidate is a hands-on leader with a passion for building robust, scalable software and fostering a collaborative Agile environment.

Job Type: Contract (Corp to Corp/C2C or 1099) Job Location: Washington D.C. (Hybrid - Onsite when required)

Key Responsibilities

Team Leadership & Mentorship:

Lead, guide, and mentor a team of 5-10+ software engineers, fostering a culture of technical excellence, collaboration, and continuous improvement. Technical Ownership:

Drive the architectural design and hands-on development of complex, scalable full-stack applications using the Spring Boot and Angular frameworks. End-to-End Delivery:

Own the entire software development lifecycle, including requirements analysis, solution design, development, testing, CI/CD, deployment, and monitoring. Agile Practice Leadership:

Champion and actively participate in all Agile/Scrum ceremonies, facilitate the breakdown of epics into user stories, and collaborate closely with Product Owners and Scrum Masters to ensure sprint goals are met. Code Quality & Best Practices:

Enforce software development best practices through rigorous code reviews, advocating for TDD/BDD, and maintaining high standards of code quality using tools like SonarQube. Stakeholder Collaboration:

Serve as a key technical point of contact, effectively communicating with cross-functional teams, stakeholders, and management to ensure alignment and manage project delivery under tight deadlines.

Requirements: 10+ years of professional software development experience. Proven track record as a

Technical Lead or Team Lead , successfully delivering complex, enterprise-grade applications.

Backend Development (Java):

Deep expertise in

Java (8/11/17)

and the

Spring Boot ecosystem (Spring MVC, Spring Data JPA, Spring Security). Strong, hands-on experience designing and building

RESTful APIs

and

microservices architecture. Proficiency with messaging systems like

Kafka

or

RabbitMQ. In-depth knowledge of scalability, performance tuning, and distributed systems.

Frontend Development (Angular):

Proficiency in modern

Angular (12+),

TypeScript, RxJS, and state management with NgRx. Demonstrated experience building modular, scalable, and responsive

Single-Page Applications (SPAs). Strong understanding of

UI/UX best practice s and experience with modern component libraries.

Database & Persistence:

Advanced skills in

RDBMS (PostgreSQL, Oracle, MySQL) , including complex

SQL

and database optimization. Experience with

ORM frameworks

like

Hibernate

and

JPA. Familiarity with

NoSQL databases

(MongoDB, Redis) for high-performance scenarios.

DevOps & Cloud Infrastructure:

Hands-on experience implementing and managing

CI/CD pipelines

using

Jenkins, GitLab, GitHub Actions,

or

Azure DevOps. Expertise in containerization with

Docker

and orchestration with

Kubernetes. Practical experience with a major cloud platform

(AWS, Azure, or GCP),

including deployment, scaling, and monitoring. Familiarity with logging and monitoring stacks like

ELK, Prometheus, Grafana, or Datadog.

Testing & Quality Assurance:

Strong advocate for

Test-Driven Development (TDD)

and

BDD methodologies. Proficient with unit/integration testing frameworks

(JUnit, Mockito, Testcontainers) and frontend testing tools (Jasmine/Karma, Cypress).

ASSYST is an Equal Opportunity Employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, disability, military status, national origin or any other characteristic protected under federal, state, or applicable local law