Fullstack Java Developer
apex systemsJersey City (NJ)
Fullstack Java Developer
Posted 8 days ago
apex systemsJersey City (NJ)
SENIORITY
Senior
About the role
Fullstack Java Developer This role is a hands-on engineering position focused on designing, building, and operating highly resilient, cloud-native enterprise Java applications at scale. The engineer acts as a technical authority for one or more critical systems, partnering with business analysts, infrastructure, and DevOps teams to deliver secure, high-performance, event-driven solutions. Success requires deep expertise in Spring-based microservices, Kafka-centric architectures, cloud platforms, CI/CD automation, and operational excellence in a fast-paced, regulated environment.
Key Responsibilities:
Act as a technical expert on one or more applications.
Work with Business System Analysts to ensure designs satisfy functional requirements.
Partner with Infrastructure to identify and deploy optimal hosting environments.
Tune application performance to eliminate and reduce issues.
Contribute expertise to the design of components, and participate in construction, functional testing, troubleshooting, and production support.
Create applications and construct unit test cases that ensure compliance with functional and non-functional requirements.
Work with peers to mature ways of working, continuous integration, and continuous delivery.
Align risk and control processes into day-to-day responsibilities to monitor and mitigate risk.
Required Qualifications
Education: Bachelor's degree is preferred or equivalent experience.
Experience:
A minimum of 6 years of related experience in designing, developing, and delivering enterprise-grade applications using Enterprise Java (Version 17 and above), with extensive use of multithreading.
Technical Skills:
Expertise with the Spring ecosystem: Spring Boot, Spring Data JPA, and Spring Kafka.
Hands-on experience with event-driven architectures, including Apache Kafka or similar messaging systems.
Strong knowledge of caching strategies using tools like Redis and Spring Cache.
Deep experience with Aurora PostgreSQL, including performance tuning and schema design.
Hands-on experience with containerization and orchestration (Docker, Kubernetes, OpenShift).Practical experience with CI/CD pipelines (Jenkins, Maven), DevOps practices, and source control (BitBucket).Experience working in Agile/Scrum environments with an ability to work at velocity in two-week sprints.
Preferred Qualifications:
Cloud experience, particularly with AWS.Experience with a modernization project, reimagining a legacy platform for a distributed environment. Hands-on expertise with Liquibase for database versioning and migrations.
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.