Lead Java Backend Developer

Quantum Technologies. LLC; Town of Texas (WI); On-site; USD 120,000 - 150,000; Full time

Job summary

A leading tech company located in Wisconsin seeks an experienced backend developer with 13+ years in Java/J2EE and strong expertise in Spring Boot and microservices architecture. The candidate will be responsible for leading teams and implementing cloud solutions. Essential skills include SQL and NoSQL databases, multithreading, and CI/CD tools. This role offers an opportunity to mentor engineers and deliver complex projects in a dynamic environment.

Qualifications

• 13+ years of backend development experience with Java/J2EE.
• Strong hands-on expertise in Spring Boot, Microservices architecture, REST APIs, and Hibernate/JPA.
• Solid understanding of multithreading, concurrency, performance tuning, and design patterns.

Responsibilities

• Lead teams, mentor engineers, and deliver complex projects on time.
• Work with cloud platforms (AWS, Azure, or GCP) and containerization tools (Docker, Kubernetes).
• Implement CI/CD pipelines and source control (Git).

Skills

Backend development

Java/J2EE

Spring Boot

Microservices architecture

REST APIs

Hibernate/JPA

Cloud platforms

Docker

Kubernetes

SQL databases

NoSQL databases

CI/CD pipelines

Maven

Gradle

Git

Team leadership

Mentoring

Job description

Overview

Job Description: 13+ years of backend development experience with Java/J2EE.

• Strong hands-on expertise in Spring Boot, Microservices architecture, REST APIs, and Hibernate/JPA.
• Solid understanding of multithreading, concurrency, performance tuning, and design patterns.
• Experience with cloud platforms (AWS, Azure, or GCP) and containerization tools (Docker, Kubernetes).
• Strong background in SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, Cassandra).
• Exposure to CI/CD pipelines, build tools (Maven/Gradle), and source control (Git).
• Proven experience in leading teams, mentoring engineers, and delivering complex projects on time.
• Excellent problem-solving, decision-making, and communication skills.

Equal Employment Opportunity

QUANTUM TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. QUANTUM TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will QUANTUM TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract