Senior Full Stack Software Engineer

Fiserv

Senior Full Stack Software Engineer at Fiserv enhancing the Clover platform and mentoring teams. Engage in building reliable applications using Java, Typescript, and modern frameworks.

Posted 4/23/2026full-timeBerkeley Heights • California, New Jersey • 🇺🇸 United StatesSenior💰 $90,000 - $144,000 per yearWebsite

Tech Stack

Tools & technologies

JavaJavaScriptMicroservicesMongoDBMySQLPythonReactSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

Architect, design, and develop web-based front-end and microservices backend applications mainly using Java, Javascript, Typescript, React and Python
Evaluate and recommend modern frameworks, technologies, and tools, and execute the corresponding processes.
Design, implement, and maintain REST APIs for devices and web clients including our web dashboard, devices, mobile apps and 3rd party apps
Identify technical requirements in product meetings and assist the business team with realistic project planning and feature development; translate product requirements into functional, maintainable, extensible software that is in-line with company objectives
Own your services/features from development through deployment and production monitoring
Participate in design/code reviews.
Partner with the Infrastructure Team to design data models that support large-scale highly available services
Work with QA to develop test plans/strategies
Participate in a regular on call and release management rotation
Collaborate with cross-functional, distributed agile teams with the flexibility to work across time zones.
Architect, build, and maintain robust, scalable, reliable, highly available, and performant applications.
Coach and mentor engineers to deliver efficient, extensible solutions and improve their technical and leadership skills.
Advocate engineering best practices by actively engaging and leveraging agile methods and a CI/CD DevOps mindset.
Triage bugs and their impact on product or service operations and quality, focusing on customer centricity
Prioritize and multi-task between projects with the ability to handle changing priorities.
Help to define the vision, strategy, and own, and drive the software technical roadmap.

Requirements

What you’ll need

Degree in Computer Science or Engineering field or related experience
5+ years of industry experience
Strong coding skills; Java is our first choice of primary language
Experience with Spring Boot for building microservices
Professional experience with React and TypeScript
Strong knowledge of relational databases (e.g., MySQL) and document databases (e.g., MongoDB).

Benefits

Comp & perks

Health insurance
Retirement plans
Paid time off
Flexible work arrangements
Professional development

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

JavaJavaScriptTypeScriptReactPythonSpring BootREST APIsrelational databasesMySQLMongoDB

Soft Skills

project planningfeature developmentcoachingmentoringcollaborationcustomer centricityprioritizationmulti-taskingcommunicationleadership

Certifications

degree in Computer Sciencedegree in Engineering