Senior Full Stack Engineer

Fiserv

. Maintain and add new platform and product features .

Posted 10/23/2026full-timeUnited StatesSenior💰 $128,000 - $216,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and maintaining full-stack web applications with a strong focus on backend engineering using Java and Spring Boot, as well as frontend development with React and TypeScript. Proven ability to mentor junior engineers and drive technical roadmaps while ensuring high availability and scalability of systems.

Highest-signal resume keywords

Java DevelopmentSpring Boot FrameworkReact Application DevelopmentCI/CD Pipeline ManagementMicroservices Architecture

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Full-Stack Web DevelopmentRelational Database ManagementData ModelingQuery OptimizationContainerizationEvent Stream DesignAsynchronous Workflow DesignDistributed Messaging SystemsTesting and MonitoringAgile Methodologies

Soft Skills

MentoringCollaborationProblem-SolvingPrioritizationCommunication

Tools & Technologies

ReactTypeScriptJavaSpring BootMySQLGoogle Pub/SubKafkaCI/CD ToolsCloud Monitoring ToolsContainerization Tools

Industry Keywords

Payments IndustryFintechScalabilityHigh AvailabilityDistributed Systems

Tech Stack

Tools & technologies

CloudJavaKafkaKotlinMicroservicesMySQLPythonReactSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

Maintain and add new platform and product features
Investigate and resolve bugs
Create helpful documentation
Re-architect systems for better scalability and availability
Build applications defining the user experience on the Clover Dashboard
Partner with Infrastructure, Product, and Design teams
Own services from development through deployment
Mentor junior talent and help drive the technical roadmap
Architect, develop, and maintain responsive web applications using React, TypeScript, and modern CSS/HTML
Design, build, and maintain containerized microservices and high-throughput REST APIs using Java and Spring Boot
Design asynchronous workflows and distributed messaging pipelines using Google Pub/Sub, Kafka, and similar systems
Evaluate and recommend modern frameworks, technologies, and tools
Translate product requirements into functional, maintainable, and extensible software
Manage testing, CI/CD deployment, production monitoring, distributed tracing, and regular on-call rotation
Design relational schemas, optimize data pipelines, and re-architect systems for high availability, fault tolerance, and low latency
Conduct code and architecture reviews
Champion distributed-system best practices
Coach and mentor engineers
Advocate engineering best practices using agile methods and a CI/CD DevOps mindset
Triage bugs and assess impacts on product or service operations and quality
Prioritize and multitask across projects and changing priorities

Requirements

What you’ll need

Degree in Computer Science or Engineering field or related experience
5+ years of professional software engineering experience building full-stack web applications
Strong backend engineering background with Java and the Spring Boot ecosystem
Proven frontend expertise using React, TypeScript, and modern state management
Solid experience with relational databases, data modeling, and query optimization (MySQL preferred)
Hands-on experience owning services in production, including CI/CD pipelines, containerized environments, and cloud monitoring tools
Experience designing event streams, schema management, and message ordering/deduplication patterns at scale
Familiarity with Kotlin and Python
Previous experience in the payments or fintech industry
Background in re-architecting systems for high availability and scalability

Benefits

Comp & perks

Annual incentive opportunity, potentially delivered as a mix of cash bonus and equity awards
Reasonable accommodation support for applicants with disabilities