Senior Software Engineer – Java & Payment Technologies
Irvine, CA, US
Information Technology
Full Time,
$135000 - $150000
On-site
Other/Non Classified
Irvine, CA, US
$135000 - $150000
Full Time,
Other/Non Classified
On-site
Information Technology
Job details
Senior Software Engineer – Java & Payment Technologies
Our client, a fast-growing company within the EV/AV (Electric & Autonomous Vehicle) industry, is looking to add a Senior Software Engineer to their team in Irvine, CA. They’re seeking someone with strong experience in Java development, API integrations, embedded systems, payment processing/POS solutions, and UI development.
Please note: This is a fully onsite position requiring attendance 5 days per week at the Irvine office.
This role offers the opportunity to work on innovative embedded technologies that support next-generation payment and vehicle solutions. The ideal candidate will have a strong software engineering background with experience developing applications that interact with firmware, payment devices, backend services, and user-facing interfaces. You’ll collaborate with engineers across hardware, firmware, and software teams to build scalable, reliable, and high-performance solutions.
Required Skills & Experience
- Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Electrical Engineering, or a related field
- Experience developing software for embedded systems
- Strong Java programming skills
- Experience building and supporting API integrations
- Solid understanding of embedded systems and software architecture
- Experience working with processors and peripheral interfaces
- Background supporting payment processing platforms, POS systems, and payment devices
- Experience with UI-layer development
- Strong debugging and troubleshooting skills in embedded environments
- Familiarity with Git, Jira, and Docker
- Experience with scripting and automation
- Knowledge of build tools and software deployment processes
Desired Skills & Experience
- C++ experience is highly preferred
- Exposure to cloud-based environments, particularly OTA (Over-the-Air) updates and backend integrations
- Familiarity with mobile payment technologies
- Prior experience in the EV, AV, or automotive industry
What You Will Be Doing
Tech Breakdown
- Java Development
- API Integration
- Payment Processing & POS Systems
- User Interface Development
- Firmware & Software Integration
- Test Automation
- Git, Jira, Docker
- Cloud Technologies (Nice to Have)
- C++ (Preferred)
Daily Responsibilities
- Design, develop, and maintain software applications for embedded systems
- Write and optimize Java-based code while contributing to C++ development efforts when needed
- Implement, validate, and support firmware-related functionality
- Create verification suites and automate test cases
- Partner with firmware and embedded engineering teams to ensure effective system integration
- Debug and troubleshoot software-to-firmware communication issues
- Develop and execute unit, integration, and system-level testing
- Analyze and resolve software defects, performance issues, and system bottlenecks
- Maintain development and testing documentation
- Provide project updates and communicate technical risks, issues, and resolutions
- Collaborate with hardware engineers, software developers, and product managers throughout the development lifecycle
- Participate in architecture discussions, design reviews, and code reviews
The Offer
Base Salary: $135,000 – $150,000
Benefits
- Medical, Dental, Vision, and Life Insurance
- Short-Term & Long-Term Disability Coverage
- 401(k) with 100% Company Match
- Paid Vacation and Sick Time
- 11 Paid Holidays
Applicants must be authorized to work in the United States on a full-time basis now and in the future.
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About Kelly
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