Senior Java Web Engineer — Hybrid Contract

Themesoft Inc.; New York (NY); Hybrid; USD 123,984,000 - 140,515,000; Part time

Job summary

Themesoft Inc is seeking a Senior Java Web Engineer in a hybrid contract role in the United States. The ideal candidate will design and implement backend services, collaborate with frontend teams, and contribute to architecture discussions.

You will work with Java 21, Spring Boot 3.x, and React 17, delivering high-quality solutions in an Agile environment. The role requires 4–8+ years of software experience, strong REST API knowledge, and proficiency in SQL databases like PostgreSQL.

Qualifications

• 4–8+ years of professional software engineering experience with Java 21, React 17, and Spring Boot 3.x.
• Strong fundamentals in Java, concurrency, and memory management; solid REST API design.
• Experience with relational DBs (PostgreSQL), Git, and build tools (Maven/Gradle).
• Familiarity with Agile processes, Linux/Unix environments, and CI/CD pipelines.

Responsibilities

• Contributes to design, development, and implementation of backend services and web applications.
• Writes clean, maintainable, and well-tested code following established engineering practices.
• Participates in technical design discussions with senior engineers and architects.
• Integrates backend services with UI components and collaborates with frontend teams.
• Supports troubleshooting, debugging, and performance optimization.
• Translates user stories into technical tasks and delivers within deadlines.
• Collaborates in Agile teams with product owners, QA, and developers.
• Maintains and improves existing systems ensuring stability and reliability.
• Fosters a collaborative environment and communicates technical concepts clearly.
• Stays up to date with modern technologies and frameworks.

Skills

Java 21

React 17

Spring Boot 3.x

REST APIs

Git

Maven/Gradle

Linux/Unix

CI/CD

Agile

PostgreSQL/SQL

Education

BS/MS in Computer Science

Tools

Docker

Job description

Themesoft Inc is seeking a Senior Java Web Engineer in a hybrid contract role in the United States. The ideal candidate will design and implement backend services, collaborate with frontend teams, and contribute to architecture discussions.

You will work with Java 21, Spring Boot 3.x, and React 17, delivering high-quality solutions in an Agile environment. The role requires 4–8+ years of software experience, strong REST API knowledge, and proficiency in SQL databases like PostgreSQL.