Jobs in the United States

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Senior Systems RF/Hardware Engineer (Onsite)
RTX
United States
Raytheon is seeking a Senior Systems RF/Hardware Engineer to contribute to the development, maintenance, and modernization of advanced RF ground systems engineering activities for satellite…
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Principal System Safety Engineer
RTX
United States
…verification (task series 400). This includes hardware and software safety related…
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Senior System Safety Engineer
RTX
United States
Work across integrated product teams and engineering disciplines, including Systems Engineering, Software/Firmware, Electrical, and Hardware Engineering, to eliminate hazards or implement…
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Principal Mechanical Engineering Lead
RTX
United States
…Sensor RF Design Department is seeking a Principal Mechanical Engineer to work on Advanced Programs onsite at our McKinney, Texas location. The candidate will perform mechanical design,…
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System Safety Engineer II
RTX
United States
Experience interfacing with other engineering functions: Systems Engineering, Software or Firmware Engineering, Electrical Engineering, Hardware Engineering
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Senior Systems Engineer – Radar Test Execution, Onsite
RTX
United States
The Systems Engineering & Test Capabilities team is seeking a highly motivated Senior Systems Engineer to plan and execute complex integration and verification test events in support of…
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Principal Optical Engineer
RTX
United States
…product capabilities for precision EO/IR and High Energy Laser systems which provide situational awareness and a tactical advantage for our…
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Thermo-Fluids Engineer I (Onsite)
RTX
United States
Join our Mechanical Systems, Externals, and Nacelles (MSEN) engineering team as a Thermo-Fluids Engineer I, where you'll perform thermo-fluids analysis for gas turbine components used in…
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Senior Test Equipment Testability Engineer (onsite Tewksbury, MA)
RTX
United States
…latest technology and tools, and integrating state-of-the-art software solutions with the most advanced engineering systems in the world. TS products are in engineering labs, in the field,…
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Effector RF Mechanical Section Lead
RTX
United States
…leadership of advanced RF hardware supporting tactical missile systems. Our engineers develop RF solutions spanning the full development lifecycle - from concept development and…
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X-ray Computed Tomography Engineer (Onsite)
RTX
United States
Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems and has been revolutionizing modern flight for over 100 years. Join…
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Principal Radar Systems Engineer
RTX
United States
The Surface Radars and Sensors (SR&S) Center within Systems Engineering and Test Capabilities (SE&TC) is looking for a Principal Radar Systems Engineer to lead radar architecture and…
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X-ray Computed Tomography Sr. Engineer (Onsite)
RTX
United States
Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems and has been revolutionizing modern flight for over 100 years. Join…
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Sr Test and Validation Engineer - 4th Shift
RTX
United States
Experience with automated test systems and software (e.g., LabVIEW, MATLAB).
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Satellite Communications (SATCOM) Technician (onsite)
RTX
United States
The C2BMC Next Program, based in Colorado Springs, CO, is seeking a SATCOM Technician. The candidate will be a primary SATCOM Engineer supporting the C2BMC Program in Shariki, Japan.
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Sr. Engineer, Captive Flight Test Lead
RTX
United States
Test Systems design experience and collaborating across multiple engineering disciplines, such as electrical, electronics, mechanical, software, and computer engineering.
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Effector RF Mechanical Section Lead
RTX
United States
…leadership of advanced RF hardware supporting tactical missile systems. Our engineers develop RF solutions spanning the full development lifecycle - from concept development and…
Added just now
Satellite Communications (SATCOM) Technician (onsite)
RTX
United States
…a SATCOM Technician. The candidate will be a primary SATCOM Engineer supporting the C2BMC Program in Kingdom of Saudi…
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Principal Software Engineer - Architect (Onsite)
RTX
United States
We are seeking a Software Architect to join our team and play a critical role in designing and developing cutting-edge software systems for real-time embedded applications. This position…
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Principal Engineer, Project Engineering F135 Military Program CDS P4 (Hybrid)
RTX
United States
Pratt & Whitney is seeking a highly skilled individual for the position of Project Engineer / Control Account Manager (CAM) to support Control & Diagnostic Systems (CDS) on the F135…
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Senior Software Engineer (Embedded SW)
RTX
United States
Collins Aerospace is seeking a qualified Senior Software Engineer to support the Identification Friend or Foe (IFF) programs for onsite software development at Aberdeen Proving Ground, MD.
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Systems Engineer II - Processing, Guidance, & Controls Engineers
RTX
United States
The PG&C Center in Tucson, AZ are currently hiring Systems Engineer II - Processing, Guidance, & Controls Engineers to support the execution of our current and upcoming product lines. These…
Added 1 min ago
Software Engineer II
Chewy, Inc.
Minneapolis, MN
We are hiring a Software Engineer II to join the Fulfillment Execution Application team in Minneapolis, MN. At Chewy, it is our mission to be the most trusted and convenient destination for…
Added 1 min ago
FM
AI Engineer
Foundation Medicine
Boston, MA
- $111,040 to $138,800 USD / year
The AI Engineer supports the day-to-day design, operation, and continuous improvement of enterprise AI platforms, applications, and agentic workflows. This role combines hands-on…
Added 2 mins ago
RH
Sr. Software Engineer
Robert Half
New York, NY
- $63.34 to $73.34 USD / hour
We are looking for an experienced Sr. Software Engineer to support the design and enhancement of embedded software solutions for advanced voice and audio communication products in New York,…

Fiserv

Sr. Front-End/Full Stack Developer

Sunnyvale, CA, United States

$140,000.00 - $210,000.00

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Job details

Pay: $140,000.00 - $210,000.00
Experience: 7+ years of software development experience, with a proven focus on Frontend / Web Engineering .
Posting language: English
Posted: Jul 27, 2026

Original 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

Sr. Front-End/Full Stack Developer

What does a successful Sr. Front-End/Fullstack Engineer do at Clover?

In this role, you will be a lead UI/UX-minded engineer responsible for driving the client-side evolution and expansion of our platform. While you have the full-stack capability to navigate backend APIs, your primary strength and passion lie in building exceptional web experiences, modern user interfaces, and modular frontend architectures. As part of the Loyalty Program team, you will own the user experience on the Clover Dashboard , translating complex data into sleek, responsive web applications used by over 700k merchants worldwide. Working alongside a strong team of dedicated backend engineers, you will bridge the gap between design, product, and services - owning web client features end-to-end, evaluating modern frontend technologies, and ensuring sub-second UI responsiveness at scale.

What you will do:

Architect, design, and develop high-performance, modular web-based frontend applications using React, TypeScript, and modern JavaScript , backed by supporting Java/Spring Boot microservices.
Own the client-side architecture of the Clover Dashboard, establishing frontend best practices, state management standards, and component libraries.
Partner with Product, UX, and core Backend Engineers to translate product requirements into intuitive, reliable web workflows and clean, extensible software.
Design, consume, and optimize RESTful APIs and GraphQL/event-driven endpoints built for web clients, mobile dashboards, and 3rd-party app integrations.
Promote effective use of AI‑powered engineering tools (e.g., AI coding assistants, automated test generation, code review, and UI performance profiling) to accelerate delivery and quality.
Own client services and features from design through deployment, automated UI testing, and production monitoring.
Participate in design and code reviews, advocating for modular code, responsive design, accessibility, and clean frontend architecture.
Coach and mentor team members to improve their technical frontend capabilities, web performance optimization, and UI testing strategies.
Participate in regular release management and cross-functional agile rituals across distributed teams.

What you will need to have:

Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.
7+ years of software development experience, with a proven focus on Frontend / Web Engineering .
Expertise in React and TypeScript , including deep knowledge of modern client-side state management, build tooling (Webpack/Vite), and Web Performance Optimization.
Strong Full Stack capabilities: Working knowledge of Java and Spring Boot to build, update, or integrate with existing backend microservices.
Hands-on experience with modern CSS frameworks, component design systems, and responsive web design for complex dashboard interfaces.
Experience using and championing AI-assisted development tools (e.g., GitHub Copilot, Cursor, automated test suites) to accelerate UI delivery.
Practical knowledge of RESTful API design, HTTP/browser protocols, web security (OAuth2, CORS), and working with relational databases (MySQL, PostgreSQL).

What would be great to have:

Experience with Micro-frontend architectures (e.g., Webpack Module Federation).
Familiarity with secondary languages/tools: Python, Node.js, GraphQL, or Docker/Kubernetes containerized workflows.
Previous background in Fintech, e-commerce, POS platforms, or merchant analytics tools.
Experience re-architecting client-side monoliths into decoupled, high-availability web applications.

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

Salary Range

$140,000.00 - $210,000.00

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.

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.

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.

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More about this job

Skills

React
TypeScript
JavaScript
Oracle Java
Spring Boot
Microservices
Component libraries
Product comprehension
API development
GraphQL
Computer science
Software development
webpack
CSS
GitHub
RESTful API
MySQL
PostgreSQL
Python
Node.js
Docker
Kubernetes
Collaboration
Onboarding
Audio technology

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