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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

What does a successful Senior Software Engineer do at Fiserv?

Finxact, a Fiserv company, is an enterprise-class, cloud-native banking platform and transaction-processing engine built on open APIs. Our platform enables banks, fintech companies, and embedded-finance providers to launch and operate financial products with agility, scalability, and reliability.

As a Senior Software Engineer, you will design and develop scalable backend services, contribute to database modernization and migration initiatives, and help solve complex technical problems across our platform. Our backend services are primarily written in Go, but we welcome experienced engineers with strong expertise in another modern programming language who are interested in becoming proficient in Go.

What you will do

• Design, develop, test, and maintain scalable backend services and APIs.
• Lead or contribute to database migration and modernization projects.
• Analyze existing applications and databases to identify dependencies, risks, and technical requirements.
• Design and optimize PostgreSQL schemas, queries, indexes, partitions, triggers, and stored procedures.
• Collaborate with engineers, architects, product teams, and other stakeholders to define and deliver technical solutions.
• Ensure data integrity, security, reliability, and performance throughout the software-development and migration processes.
• Use AI-assisted development tools responsibly to improve design, implementation, testing, documentation, and troubleshooting.
• Participate in code reviews, architectural discussions, production support, and mentoring of other engineers.

What you will need to have

• 7+ years of professional software-engineering experience.
• Strong experience developing production backend systems in Go or another modern programming language.
• Ability and willingness to become productive in Go.
• 5+ years of experience with relational databases, including database design, optimization, and data-migration techniques.
• Strong PostgreSQL experience or comparable experience with another enterprise relational database.
• Experience with query optimization, indexing, data modeling, partitioning, triggers, and stored procedures.
• Experience operating applications or databases in a cloud environment.
• Practical experience using AI-assisted development tools while independently validating generated output.
• Strong analytical, troubleshooting, communication, and collaboration skills.
• A passion for technology, continuous learning, and solving complex engineering problems.
• Bachelor's degree in computer science, engineering, or a related field, or an equivalent combination of education, professional experience, and/or military experience.

What would be great to have

• Production experience developing backend services in Go.
• Advanced PostgreSQL experience, including PL/pgSQL, replication, high availability, or performance tuning.
• Experience with cloud-native architectures, containers, Kubernetes, microservices, or distributed systems.
• Experience with change data capture, database replication, or large-scale data migrations.
• Experience with performance and load testing.
• Experience with specification-driven development, including translating requirements into technical specifications, implementation plans, and automated tests.

Important information about this role

• We're better together. This role is fully on-site.
• This is a full-time, direct-hire position.
• Unsolicited submissions from staffing or recruiting agencies will not be considered.

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-including OPT, CPT, or STEM extensions-H-1B, H-2, or TN status, as well as candidates who require sponsorship now or in the future, will not be considered for this position.

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island, Vermont, Virginia, Maine or Washington.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

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 contactAskHR.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.

Warning about fake job posts:

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.