CareerPlan

Backend Developer

Berkeley Heights, NJ, USFull-time$90k–$144k2026-10-23 → 2026-11-09
Based in United StatesNo visa sponsorship

Core

Design and maintain large-scale, high-frequency, low-latency enterprise applications for Fiserv's Gift Solutions, connecting financial institutions, corporations, merchants, and consumers.

Role type

Senior Backend Developer (Fintech/Payments)

Builds

High-frequency payment processing systems and customer-facing financial applications

Domain

Financial Services / Payments / Fintech

Deliverable

production ML models | product features

Required skills

Java, Python, Microservices, RESTful APIs, Spring Boot, AWS, Kafka, MySQL, DynamoDB, CI/CD, Identity and Access Management

Preferred skills

Financial services industry experience, Test-driven development, Event-based architecture strategy, Security implementation tools (Voltage, Sonatype, Fortify), Agile software development lifecycles

Technologies

Java, Python, Spring Boot, AWS, Kafka, MySQL, DynamoDB, Git, Maven, Gradle, Jenkins, Splunk, Dynatrace, JIRA, Confluence

Responsibilities

Design and maintain large-scale high-frequency, low-latency applications; Develop and maintain CI/CD pipelines and test automation frameworks; Collaborate with product management to provide estimates and detailed designs; Integrate security measures and support PCI/PII data masking; Develop and maintain technical documentation; Ensure code quality and structure.

Seniority

Mid-to-Senior, hands-on IC