Sr Full Stack Engineer
Fiserv•Sunnyvale, CA
•$140,000 - $210,000•Onsite
About The Position
To accelerate our leadership in the point-of-sale (POS) and financial technology sectors, Clover is aggressively expanding our digital omni-commerce capabilities. As a Full Stack Software Development Engineering - Advisor I, you will serve as a critical technical driver in building our next-generation website, storefront, and seamless checkout experiences. This vital role directly supports our 2026 strategic objectives to accelerate international expansions across APAC, Japan, and the EU, eliminate backend dependencies to maximize feature velocity, and pioneer AI-driven agentic commerce integrations.
Requirements
- 5-8+ years of professional software engineering experience building scalable, enterprise-grade web applications.
- Deep expertise in JavaScript/TypeScript, React.js, and Next.js (SSR, SSG, and CSR strategies).
- Strong proficiency in Java and the Spring ecosystem (Spring Boot, Spring Security) alongside ORM experience with Hibernate.
- Hands-on experience with both relational (MySQL) and NoSQL (MongoDB) databases.
- Experience designing and deploying microservices on GCP (or AWS) using Kubernetes, Docker, and CI/CD pipelines.
- Demonstrated ability to integrate AI into daily development workflows to increase productivity, with a strong foundational understanding of LLMs and AI integrations.
Nice To Haves
- Previous experience in Fintech, POS, or E-commerce platforms (direct familiarity with competing platforms like Shopify, Toast, Stripe, etc., is a massive plus).
- Experience building software for global markets, including managing the complexities of global tax, currency conversion, and localization.
- Deep understanding of web security, PCI compliance, and secure payment processing workflows.
Responsibilities
- Architect, build, and deploy high-performance e-commerce storefronts, secure checkout flows, and omni-channel merchant integrations.
- Develop responsive, SEO-friendly, and accessible user interfaces using React.js and Next.js, optimizing for Core Web Vitals and seamless user experiences.
- Design and implement highly available, secure microservices using Java, Spring Boot, and Hibernate to reduce cross-team dependencies and time-to-market.
- Model complex commerce data using MongoDB and MySQL, while deploying and scaling localized microservices using Kubernetes and Docker on Google Cloud Platform (GCP).
- Build resilient systems capable of supporting multi-region scalability, localization, and regional compliance for seamless multi-region traffic handling.
- Actively utilize AI-assisted developer tools (e.g., GitHub Copilot, Cursor, ChatGPT) to accelerate coding velocity, and design backend architectures capable of supporting smart product recommendations and agentic commerce integrations.
- Lead code reviews, define architectural standards, and mentor mid-level/junior engineers to foster a culture of engineering excellence.
Benefits
- 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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What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
