Senior Full Stack Developer

Fiserv • Full-time • Berkeley Heights, New Jersey, United States • 13h ago

About your role:

Join our Experience team at Finxact, where you'll help design and build digital and AI-powered features for the Finxact.io platform. We're looking for a full-stack developer with a strong interest in AI, who thrives in fast-paced, collaborative, and autonomous environments. You’ll work closely with cross-functional teams to deliver software that meets real client and partner needs—bringing both innovation and efficiency to our platform.

What you’ll do:

Develop and maintain front-end interfaces for web applications using modern languages and frameworks such as TypeScript and React
Design and implement back-end services and APIs using Golang, Docker and other relevant technologies
Write clean, maintainable, and efficient code; follow best practices and coding standards and conduct code reviews and provide constructive feedback to peers
Troubleshoot and debug issues reported by QA, partners, or clients to ensure high-quality application performance
Develop technical designs and collaborate cross-functionally with product managers, designers, developers, and business users to define, design, and deploy new features
Operate within an agile environment as an active participant in all traditional agile ceremonies and activities to deliver high-quality outputs
Help lead key team initiatives and mentor Junior Developers
Responsibilities listed are not intended to be all-inclusive and may be modified as necessary

Experience you'll need to have:

6+ years of software development experience in a Technology, AI, Fintech, or SaaS organization
4+ years of development experience in Go, TypeScript, React, or an equivalent language
2+ years of experience with relational databases, Docker, and GIT
2+ years of experience utilizing critical thinking and research strategies to augment existing codebases
2+ years of experience leading development initiatives and delivering tangible results
Bachelor’s degree in computer science, engineering, or a related field, or an equivalent combination of education, work or military experience

Experience that would be great to have:

2+ years of experience with associated development and documentation applications: Jira, Confluence, GitLab, Visio, and Lucid Charts
Experience in Core Banking Platform or Payments
Experience building AI solutions or using AI to enhance day-to-day productivity

How you’ll work:

Fiserv emphasizes in-person collaboration to help you grow your career while shaping the future of fintech; this role is on-site Monday through Friday.
The role requires being on-call less than 1 week per month

Sponsorship:

You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered for this role.

Benefits at Fiserv:

Fuel Your Life program to support your physical, financial, social, and emotional well-being
Paid holidays and generous time away policies
No-cost mental health support through Employee Assistance Programs
Living Proof program to recognize your peers’ extra effort with points redeemable for rewards
Eight Employee Resource Groups to foster a collaborative culture and expand your network
Unparalleled professional growth with training, development, and internal mobility opportunities

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