Lead Java Backend Developer

Quantum Technologies. LLC; Irving (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

QUANTUM TECHNOLOGIES LLC is seeking a seasoned Java backend engineer in Irving, TX, to drive backend development across Spring Boot, microservices, REST APIs, and Hibernate/JPA. You will tackle multithreading, performance tuning, and design patterns while collaborating on cloud deployments (Docker/Kubernetes) and database systems (PostgreSQL, MongoDB, Cassandra).

The role requires 13+ years of experience, strong leadership, and mentoring abilities, with a solid track record delivering complex

Qualifications

• 13+ years backend Java/J2EE experience.
• Strong hands-on expertise in Spring Boot, Microservices, 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.

Skills

Java/J2EE

Spring Boot

Microservices

REST APIs

Hibernate/JPA

Multithreading

Performance tuning

Design patterns

Cloud platforms

Docker

Kubernetes

SQL

NoSQL

PostgreSQL

MongoDB

Cassandra

Maven

Gradle

Git

Team leadership

Mentoring engineers

Tools

AWS

Azure

GCP

Job description

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.

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