Jobs in the United States

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Added 30 mins ago
Technical Architect - Networking
HEARTLAND LABEL PRINTERS INC
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Added 31 mins ago
Technical Architect - Networking
HEARTLAND TECHNOLOGY GROUP, INC
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Added 57 mins ago
A
Mobile Developer
Actalent
Minneapolis, MN
- $50 to $90 USD / hour
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Added 1 hour ago
Senior Software Development Engineer, Mobile
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…travelers meet that experience every day. We're looking for an App Developer who builds for that scale and wants to shape how our team works, not just what we…
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Staff Mobile Engineer, iOS
Abbott
Alameda, CA
This Staff Mobile Engineer, iOS position works onsite in our Alameda, CA location for Lingo.
Added 1 hour ago
Senior iOS Engineer – Payments & Hardware Integrations
Fiserv
Sunnyvale, CA
We are seeking a Senior iOS Engineer who enjoys bridging high-level mobile software with physical hardware. Based at our campus in Sunnyvale, CA, you will serve as a hands-on technical lead…
Added 1 hour ago
Product Designer, Design Systems, Goodreads
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Staff Software Engineer
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- $143,000 to $286,000 USD / year
…leveraging Cordova to convert and build native applications for iOS and Android. Experience creating API design/technical documentation in Stoplight. Experience building queries to store,…
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- $117,000 to $234,000 USD / year
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Software Engineer III
Walmart
SUNNYVALE, CA
- $187,075 to $234,000 USD / year
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Senior Software Engineer
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SUNNYVALE, CA
- $117,000 to $234,000 USD / year
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Added 4 hours ago
IT Desktop Support - 3051157
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Added 5 hours ago
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Technology Support Specialist
Mid Michigan College
Mount Pleasant, MI
- $17.94 to $19.16 USD / hour
…meaningful way. Knowledge of Microsoft (Windows), Apple (MAC OS, IOS), Google (Chrome, OS, Android) operating systems, productivity software (MS Office, Google Apps), email (Outlook,…
Added 6 hours ago
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Business Banking Manager
City National Bank
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…and/or the City National Securities (CNS) Investment Officers (IOs) to communicate with clients about current conditions in the financial markets, investment alternatives, asset allocation…
Added 9 hours ago
TECHNOLOGY SUPPORT SPECIALIST II
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Windows Systems Engineer (Application Packaging / Endpoint Environment
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Added 12 hours ago
Senior Software Engineer - Mobile iOS
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Added 12 hours ago
Network Engineer (Active Top Secret Clearance with SCI Eligibility Required) - Sign on bonus up to $5,000
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Honolulu, HI
…network environments, working with technologies such as Cisco IOS, Cisco Routers, Layer 2 and Access Layer Switches, Cisco ISE, Firepower, ACI, F5, Palo Alto, VMware NSX, SPLUNK, ACAS, and…
Added 12 hours ago
Software Engineer, Chrome Networking Security
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…secure way.Chrome is available across all major platforms - iOS, Android, Windows, Mac, Linux and Chrome OS. We also built Chrome as an open source project so the entire web ecosystem could…
Added 12 hours ago
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Full-Stack Software Engineer
CAI
Boston, MA
- $84 to $89 USD / hour
Design, build, and maintain real-time chat features using WebSockets. Develop, integrate, and support SDKs for Web, iOS, and Android to ensure seamless omnichannel messaging experiences
Added 13 hours ago
Staff Mobile Engineer, iOS
Lingo US Inc
CA
This Staff Mobile Engineer, iOS position works onsite in our Alameda, CA location for Lingo.
Added 14 hours ago
Associate Manager, IT Services
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Los Angeles, CA
Experience supporting mobile devices, including iOS and Android platforms.

Fiserv

Senior iOS Engineer – Payments & Hardware Integrations

Sunnyvale, CA, United States

$140,000.00 - $210,000.00

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Job details

Pay: $140,000.00 - $210,000.00
Experience: iOS Mastery: 5+ years of hands-on experience building, testing, and shipping production-grade native iOS applications or frameworks using Swift and Objective-C .
Posting language: English
Posted: Sep 28, 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

Senior iOS Engineer – Payments & Hardware Integrations

About Your Role

Clover is a global leader in point-of-sale platforms powering millions of small businesses worldwide with integrated hardware, software, and payment solutions.

We are seeking a Senior iOS Engineer who enjoys bridging high-level mobile software with physical hardware. Based at our campus in Sunnyvale, CA, you will serve as a hands-on technical lead driving mobile hardware integrations, Bluetooth reader SDKs, and core transaction flows across our native iOS framework. In this role, you will work closely with our on-site hardware labs, product teams, and Core Payments engineering to ensure fast, reliable, and secure mobile payment experiences. If you love building software that interacts with physical accessories - from Bluetooth readers to smart terminal devices - we want to talk to you!

What You Will Do

Hardware & SDK Engineering: Design, build, and maintain modular native iOS SDKs and frameworks that communicate with Bluetooth Low Energy (BLE) card readers, smart accessories, and next-generation terminal hardware.
Core Payment Integrations: Partner with backend and Core Payments teams to integrate transaction processing, tokenization, refunds, and secure cryptographic communications on iOS.
On-Site Prototyping & Lab Debugging: Leverage our state-of-the-art Sunnyvale hardware lab for real-time hardware-in-the-loop debugging, reader firmware testing, and performance optimization.
System Architecture: Write clean, maintainable Swift and Objective-C components emphasizing thread safety, low latency, and robust offline-first execution.
Global Team Alignment: Serve as a U.S.-based technical lead for iOS hardware integrations, bridging communication between local lab teams and global engineering groups.

What You Need to Have

iOS Mastery: 5+ years of hands-on experience building, testing, and shipping production-grade native iOS applications or frameworks using Swift and Objective-C .
Hardware & Peripheral Integration: Hands-on experience connecting iOS applications to external hardware accessories or peripherals using CoreBluetooth, Bluetooth Low Energy (BLE), MFi (Made for iPhone), or USB interfaces .
Framework Architecture: Deep understanding of iOS framework design, API architecture, multithreading, memory management, and asynchronous networking.
Security & Network Foundations: Exposure to secure key management, cryptographic principles (e.g., AES, RSA, tokenization), or REST/WebSocket APIs.
Debugging & Problem-Solving: Curiosity and drive to troubleshoot complex edge cases spanning software, network protocols, and physical hardware layers.

Experience that would be great to have

Card Reader & Payment Experience: Any prior experience working with payment processors, card readers (e.g., Clover, Square, Stripe Terminal, Ingenico, Verifone), or point-of-sale (POS) systems is highly valued .
Compliance Exposure: Familiarity with payment industry standards (PCI-DSS, PCI-PTS, EMVCo) or device certification workflows.
C/C++ Interop: Experience writing or maintaining shared native C/C++ libraries wrapped for iOS via Objective-C++ or Swift C-interop.

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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