Java Full-Stack Engineer: Spring Boot & WebFlux

TechDigital Group; Jersey City (NJ); On-site; USD 120,000 - 160,000; Full time

Job summary

TechDigital Group in Jersey City, NJ is seeking an accomplished backend engineer to design, develop, and maintain high-performance microservices using Java 17 and Spring Boot. You will build reactive systems with WebFlux, design RESTful APIs, and implement event-driven communication via IBM MQ and Kafka.

You will collaborate with frontend, architects, and product owners to deliver end-to-end solutions, write clean code, participate in reviews, and help drive automation and improvements across

Qualifications

• Strong experience designing and building scalable microservices.
• Expertise with Java 17 features and Spring ecosystem.
• Proficient in reactive programming with Spring WebFlux.
• Experience designing RESTful APIs with proper versioning and error handling.
• Hands-on with IBM MQ and Kafka for event-driven architectures.
• Collaborates with cross-functional teams and participates in code reviews.
• Troubleshoots production issues and performs root cause analysis.
• Familiarity with cloud and container platforms is a plus.

Responsibilities

• Design, develop, and maintain high-performance microservices using Java 17 and Spring Boot.
• Build reactive, non-blocking apps with Spring WebFlux for high-concurrency workloads.
• Develop and document RESTful APIs with proper versioning and error handling.
• Implement event-driven communication using IBM MQ and Apache Kafka.
• Collaborate with frontend, architects, and product owners to deliver end-to-end solutions.
• Write clean, well-documented code and participate in code reviews.
• Troubleshoot production issues and perform root cause analysis.
• Drive continuous improvement through optimization and automation.

Skills

Java 17

Spring Boot

Spring WebFlux

REST APIs

Microservices

IBM MQ

Apache Kafka

Tools

MongoDB

AWS Cloud

OpenShift

Kubernetes

Helm

Harness

Git & Bitbucket

JIRA

Gradle

Client Project

Kibana

Job description

Designing, developing, and maintaining high-performance, scalable microservices using Java 17 and Spring Boot framework
Building reactive and non-blocking applications leveraging Spring WebFlux to handle high-concurrency workloads efficiently
Developing and consuming RESTful APIs following industry best practices and ensuring proper documentation
Implementing event-driven architecture using IBM MQ and Apache Kafka for seamless asynchronous communication between services
Collaborating with cross-functional teams including frontend developers, architects, and product owners to deliver end-to-end solutions
Writing clean, maintainable, and well-documented code adhering to coding standards and best practices. Participating in code reviews, providing constructive feedback, and ensuring code quality across the team
Troubleshooting production issues, performing root cause analysis, and implementing effective fixes
Contributing to continuous improvement initiatives by identifying opportunities for optimization and automation

Skill Matrix
Skill	Proficiency Expected (Mandatory)
Java 17	Expert-level understanding of Java 17 features including records, sealed classes, pattern matching, and enhanced switch expressions
Spring Boot	Strong hands-on experience in building production-grade applications using Spring Boot
Spring WebFlux	Proficiency in developing reactive, non-blocking applications using Spring WebFlux and Project Reactor
REST APIs	Expertise in designing, developing, and securing RESTful APIs with proper versioning and error handling
Microservices	Solid experience in microservices architecture including service discovery, API gateway, circuit breakers, and distributed tracing
IBM MQ	Hands-on experience with IBM MQ for enterprise messaging and integration
Apache Kafka	Strong knowledge of Kafka for building event-driven systems, including producers, consumers, and stream processing

Skill	Proficiency Expected (Good To Have)
MongoDB	Experience with MongoDB for NoSQL database design, queries, and aggregation pipelines
AWS Cloud	Familiarity with AWS services such as EC2, S3, Lambda, ECS, and RDS
OpenShift	Experience deploying and managing applications on OpenShift or similar container platforms
Kubernetes	Knowledge of Kubernetes for container orchestration, deployments, and scaling
Helm	Experience with Helm charts for Kubernetes application packaging and deployment
Harness	Familiarity with Harness for continuous delivery and deployment automation
Git & Bitbucket	Proficiency in version control using Git and collaboration via Bitbucket
JIRA	Experience using JIRA for agile project management and issue tracking
Gradle	Hands-on experience with Gradle for build automation and dependency management
Client Project	Familiarity with Client Project for development acceleration
Kibana	Experience with Kibana for log visualization, monitoring, and troubleshooting