Software Engineer Senior

Software Engineer Senior Calling all innovators - find your future at Fiserv. We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day - quickly, reliably, and securely.

Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv. What does a successful Senior Full Stack Engineer do?

A Senior Full Stack Engineer at Finxact plays a pivotal role in our user experience organization, driving the development of innovative solutions and AI powered features on Finxact.io. In this role, you’ll lead and collaborate with cross‑functional teams to design, build, and deploy software that meets the evolving needs of our clients and partners. The ideal candidate brings a passion for technology, deep expertise in full stack development, and a strong desire to contribute in a fast‑paced, collaborative environment.

What you will do: Collaborate cross‑functionally with product managers, designers, and developers to translate business requirements into technical specifications, prototypes, and production‑ready features. Develop and maintain responsive user interfaces using TypeScript and React. Design and implement scalable back‑end services and APIs using Go and modern cloud technologies.

Write clean, efficient, and maintainable code; conduct code reviews and mentor peers. Troubleshoot and resolve issues from QA, partners, or clients by participating in an on‑call rotation and managing technical problems through root cause analysis and solution implementation. Contribute actively to agile ceremonies and workflows to drive continuous improvement.

Provide technical leadership and guidance to team members, including mentoring on financial services software best practices. Integrate AI‑powered capabilities into web applications, leveraging tools and services to enhance user experience, automation, and decision‑making. What you will need to have: Bachelor’s degree in Engineering, Computer Science, or Information Technology 5+ years of experience in a Technology, Fintech, or SaaS organization 2+ years of development experience in Go, TypeScript, React, or equivalent languages.

Experience with relational databases, RESTful services, Docker, and Git Experience leading development initiatives and delivering high‑quality results Openness to feedback from code reviews and design direction from peers Excellent written and verbal communication skills to collaborate with technical and non‑technical stakeholders across the organization What would be nice to have: Work experience in core banking or financial technology Experience with Jira, Confluence, GitLab, and Lucidchart Ability to coordinate multiple tasks to completion with minimal supervision Salary Range $122,000.00 - $198,000.00. These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion. Our commitment to Equal Opportunity: Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact [email protected]. Please note our AskHR representatives do not have visibility to your application status. Fiserv does not accept resume submissions from agencies outside of existing agreements.

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