Lead Java Backend Engineer

Quantum Technologies LLC; Chicago (IL); Híbrido; USD 91.000 - 124.000; Jornada completa

Descripción de la vacante

Quantum Technologies. LLC in Chicago is seeking a hands-on Lead Java Backend Engineer to design, develop, and scale enterprise APIs and microservices on an AWS-hosted platform.

You''ll lead a team of about 12–13 engineers, drive architecture decisions, mentor juniors, and stay actively involved in hands-on backend development with Java/Spring Boot.

The role emphasizes delivery, code quality, and rapid iteration in a fast-paced environment.

Formación

• 10+ years in software engineering with hands-on Java backend development.
• Java 17+ (Java 21 preferred) with Spring Boot.
• Experience designing and developing RESTful APIs and microservices.
• Strong AWS/cloud experience with production deployments.
• Proven technical leadership in architecture decisions and mentoring.
• Strong API design experience; Apigee/API Gateway preferred.
• Experience with automated testing, CI/CD, and end-to-end delivery.
• Onsite in Chicago required Mondays and Wednesdays.

Responsabilidades

• Design, develop, and scale enterprise APIs and microservices.
• Provide technical leadership, code reviews, and design reviews.
• Mentor engineers and guide architecture decisions.
• Stay hands-on with Java/Spring Boot development.

Conocimientos

Java backend

Spring Boot

REST APIs

AWS

Technical leadership

API design

CI/CD

Testing

Onsite Chicago

Herramientas

Apigee

OpenAPI/Swagger

Kafka

PostgreSQL

MongoDB

Jenkins

Azure DevOps

GitHub Actions

Descripción del empleo

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title: Lead Java Backend Engineer
Location: Chicago, IL(Remote)
Duration: 24 Months + Extension
Bill Rate: $78/hour (C2C)
Job Type: W-2, 1099, C2C
Client: To Be Discussed Later
Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-4-EAD, Other

Job Description

Looking for a hands-on Lead Java Backend Engineer to help design, develop, and scale enterprise-level APIs and microservices supporting its AWS-hosted digital platform.
This is a technical leadership role on a team of approximately 12–13 engineers. The ideal candidate can drive architecture and design decisions, guide other developers, and take ownership of complex initiatives while remaining actively involved in hands-on backend development.
This is NOT a pure architect or people management role. Candidates must still be hands-on with Java/Spring Boot development.

Must-Have Requirements

• 10+ years of software engineering experience, including extensive hands-on Java backend development.
• Java 17+ (Java 21 preferred) and strong Spring Boot experience.
• Extensive experience designing and developing RESTful APIs and microservices.
• Strong AWS/cloud experience, including deploying and supporting production applications.
• Proven technical leadership experience involving architecture decisions, design reviews, code reviews, and mentoring engineers.
• Strong API design and integration experience; Apigee/API Gateway experience highly preferred.
• Experience with automated testing, CI/CD pipelines, and end-to-end software delivery.
• Must be able to work onsite in Chicago Mondays and Wednesdays.

Highly Preferred Technical Experience

• API Management: Apigee, OpenAPI/Swagger, API-first architecture.
• Security: OAuth 2.0, JWT, service-to-service authentication.
• Event-Driven Architecture: Kafka, AWS SQS/SNS/Kinesis, RabbitMQ, or similar.
• Databases: PostgreSQL, Oracle, MongoDB, DynamoDB, or similar SQL/NoSQL databases.
• CI/CD: Jenkins, Azure DevOps, GoCD.
• Testing: JUnit, Mockito, integration and performance testing.
• Additional: Redis, Elasticsearch, GitHub Copilot/Cursor, Agile/Scrum.

Candidate Screening Guidelines

Prioritize candidates who have

• Recent hands-on Java/Spring Boot development experience, not just architecture oversight.
• Experience functioning as a technical lead on enterprise backend/API projects.
• Strong AWS and microservices architecture experience.
• Stable work history with reasonable tenure.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.