Java Backend Engineer

Fiserv

Java Backend Engineer at Fiserv, developing backend services with Java and Spring Boot. Managing technical delivery and collaborating with offshore teams for high-performance payment processing applications.

Posted 5/24/2026full-timeBerkeley Heights • New Jersey • 🇺🇸 United StatesMid-LevelSenior💰 $110,000 - $186,000 per yearWebsite

Tech Stack

Tools & technologies

CloudDockerJavaOracleSpringSpring BootSpringBootSQL

About the role

Key responsibilities & impact

Code daily, own technical delivery end to end, and raise the bar for the team through strong code reviews, pragmatic architecture, and operational ownership.
Work closely with an offshore team, keep environments stable and clean, and ensure what we release is production ready.
Design, develop, and maintain backend services using Java 25, Spring Boot, REST APIs as well as own delivery from design through production: implementation, unit/integration testing, deployment readiness, and production support.
Lead day-to-day execution with an offshore lead and team: align on priorities, break down work, manage dependencies, and coordinate with QA and release timelines.
Review code from other engineers, enforce consistent standards (naming, structure, testing, and secure coding practices), and help unblock issues quickly.
Define and implement infrastructure-as-code to create and update cloud resources; deploy changes safely and maintain cloud environments through monitoring, troubleshooting, configuration hygiene, and access controls.
Ensure environments remain “pristine”: predictable deployments, minimal drift, clear ownership, and strong operational readiness (alerting, dashboards, and runbooks where needed).
Develop and support batch and data-processing workloads (ingestion/processing flows, scheduling, transformations), using strong patterns for retries, idempotency, checkpointing, and error handling.
Build and enhance application features that integrate with Snowflake and Oracle, including writing and tuning SQL where needed.
Design with maintainability in mind: clear boundaries, sensible abstractions, and an approach that makes future changes safer and easier.
Build for resiliency by validating failure scenarios and incorporating disaster recovery considerations into designs and releases.

Requirements

What you’ll need

6+ years of backend development experience with Java and Spring Boot, including building production APIs and integrations.
6+ years of experience in leading delivery (coding, reviewing, and driving technical decisions).
6+ years of experience writing infrastructure-as-code and owning cloud deployments and operations (monitoring, troubleshooting, and environment stability).
6+ years of experience with containerized development and modern build/release pipelines (Docker, build tools, CI/CD).
3+ year of experience integrating with Snowflake and Oracle in real systems (development, troubleshooting, and performance awareness).
Bachelor's degree in computer science, Information Technology, Information Systems, or a related field (or foreign equivalent degree) or equivalent work experience.

Benefits

Comp & perks

Competitive salary
Annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

JavaSpring BootREST APIsinfrastructure-as-codeSQLDockerCI/CDunit testingintegration testingdata processing

Soft Skills

leadershipcode reviewproblem solvingcommunicationcollaborationoperational ownershipprioritizationdependency managementcoordinating with QAdesign thinking