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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

About your role:

Fiserv is a global leader in financial technology, empowering millions of businesses worldwide through Clover's smart point-of-sale (POS) and digital omni-commerce platform. As a Backend Application Architect, you will serve as a technical leader driving the architectural vision, strategy, and evolution of our core enterprise backend systems. In this role, you will architect resilient, high-volume transactional platforms and partner across product and engineering leadership to execute our strategic roadmap-accelerating international expansions across APAC, Japan, and the EU, eliminating backend dependencies to maximize feature velocity, and pioneering AI-driven agentic commerce integrations.

What you'll do:

• Drive the strategic architectural vision, technical roadmaps, and modernization of high-throughput, low-latency microservices and event-driven backend platforms.
• Design and govern scalable API ecosystems, data models, caching strategies, and storage solutions across relational and NoSQL engines to eliminate backend dependencies and maximize engineering velocity.
• Architect resilient backend services that support international expansion initiatives (APAC, Japan, EU) and enable cutting-edge AI-driven agentic commerce workflows.
• Establish non-functional requirements (NFRs) and architectural standards for performance, security, fault tolerance, zero-downtime deployments, and platform observability.
• Lead cross-team design reviews, evaluate emerging technologies, and de-risk high-stakes initiatives in partnership with Product, Business, and Executive leadership.
• Mentor and elevate Tech Leads and Senior Engineers across multiple scrum teams to foster a culture of technical excellence and engineering rigor.
• Responsibilities listed are not intended to be all-inclusive and may be modified as necessary.

Experience you'll need to have:

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field.
• 12+ years of hands-on professional software engineering experience designing, building, and operating enterprise backend systems in Java environments.
• Deep mastery of the JVM ecosystem, Spring Boot, microservices architecture patterns (CQRS, Saga, Circuit Breaker), and distributed messaging systems (Kafka, Google Pub/Sub, RabbitMQ).
• Advanced proficiency in data architecture, schema design, and transaction management across both SQL (MySQL, PostgreSQL) and NoSQL (Cassandra, MongoDB, Redis) databases.
• Practical expertise with cloud-native platforms (GCP, AWS, or Azure), containerization (Docker, Kubernetes), and automated CI/CD deployment models.
• Proven track record in RESTful API design, OpenAPI/Swagger specifications, API security standards (OAuth2, JWT, mTLS), and JVM performance/concurrency tuning under heavy transaction loads.

Experience that would be great to have:

• Prior experience architecting high-concurrency payment gateways, POS ecosystems, merchant services, digital storefronts, or global checkout pipelines.

• Familiarity with polyglot environments and secondary languages (Python, Go, Node.js, Next.js) for tooling, automation, or rapid prototyping.
• Hands-on experience with event-sourcing engines, serverless compute (Google Cloud Functions, AWS Lambda/Kinesis), or reactive frameworks (Spring WebFlux, RxJava).
• Strong understanding of PCI-DSS compliance, data encryption standards, and enterprise vulnerability management.
• Experience designing backend architectures that integrate Generative AI models, LLMs, or agentic commerce AI workflows via REST APIs and event-driven messaging.

How you'll work:

• This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity.
• This role requires use of a computer and audio equipment.

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
• Medical, dental, vision, life, and disability insurance options available from day one
• Retirement planning and discounted shares with the Employee Stock Purchase Plan
• Tuition assistance and reimbursement program
• Paid parental, caregiver, and military leave

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Salary Range

These pay ranges apply to employees in Sunnyvale, California. 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.

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.