Senior Golang Developer (Core Application)
Fiserv· Fintech / Payments· Oct 22, 2026 · 5d ago
Jacksonville Florida
In office
Full-time
Senior
$109K–$182K
6+ years exp
Job description
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.
Job Title
Senior Golang Developer (Core Application)
About your role:
You will be working in an application design and development leadership role on Finxact Core as a Service platform, building backend services and APIs in Golang. You will be creating new software and enhancing existing software to provide banking and financial institution services. You will work with business analysts, engineers, and other system users to understand and implement their application requirements
Could work with partners to understand their implementations and gain a breadth of knowledge in cloud-based SaaS implementations and technologies
Provide quality software, improve test coverage and the overall quality of the systems. Lead other developers on the team and assist them in designing solutions, understanding the principles of financial services software and programming best practices.
What you ll do:
Lead the design, development, and implementation of software applications to support Fiserv s business goals.
Collaborate with cross-functional teams to gather requirements and translate them into technical specifications.
Perform coding, testing, and debugging of applications to ensure optimal performance and reliability.
Maintain and improve existing codebases and lead peer review processes.
Mentor junior developers and provide technical guidance to enhance team capabilities.
Must be willing to work under deadlines and be detail oriented
Required qualifications:
6 years of experience in software development
3 years of experience in Golang, Java, C, C#, C , or similar programming languages
3 years of experience in SQL databases
3 years of experience in RESTful services, Swagger, Json data interchange, and GIT.
3 years of experience with Agile methodologies
6 years of an equivalent combination of educational background, related experience, and/or military experience
Experience that would be great to have:
Industry experience in software application design and development for payments such as ACH, Fedwire, RTP, cards, or other iso20022/iso8583 related payment types.
Familiarity with Golang
AI driven development practices
Microservices development strategies and best practices
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.
#LI-IH1
Salary Range
$109,000.00 - $182,400.00
These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.
It is unlawful to discriminate against a prospective employee due to the individual s status as a veteran.
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.
Thank you for considering employment with Fiserv. Please:
Apply using your legal name
Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).
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 AskHR.US fiserv.com . Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.
Note to agencies:
Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.
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Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.
Application prep
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