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Backend Developer Intern Jobs in Irvine, CA (NOW HIRING)

EBizCharge

Senior Software Engineer (Card Present)

Irvine, CA · On-site

$131K - $173K/yr

Design, develop, and maintain backend services that manage communication between payment terminals ... The Company prohibits unlawful discrimination against any job applicant, employee, or unpaid intern ...

EBizCharge

Technical Product Owner

Irvine, CA · On-site

... engineering experience (backend or full-stack preferred) * 5+ years of experience as a Technical ... The Company prohibits unlawful discrimination against any job applicant, employee, or unpaid intern ...

All JobsBackend Developer Intern JobsBackend Developer Intern Jobs in Irvine, CA

Backend Developer Intern information

See Irvine, CA salary details

$12

$61

$90

How much do backend developer intern jobs pay per hour?

As of Aug 2, 2026, the average hourly pay for backend developer intern in Irvine, CA is $61.97, according to ZipRecruiter salary data. Most workers in this role earn between $50.82 and $73.27 per hour, depending on experience, location, and employer.

What types of projects or responsibilities can a Backend Developer Intern expect during their internship?

As a Backend Developer Intern, you can expect to work on tasks such as developing and maintaining server-side logic, building and integrating APIs, troubleshooting bugs, and collaborating with frontend teams to deliver seamless features. Interns often contribute to real production code under the guidance of senior developers and participate in code reviews, team meetings, and regular stand-ups. You'll gain hands-on experience with industry-standard tools and workflows while learning best practices for clean, efficient code. This immersive exposure helps you build a foundational skill set and prepares you for more advanced development roles in the future.

What are the key skills and qualifications needed to thrive in the Backend Developer Intern position, and why are they important?

To thrive as a Backend Developer Intern, you need a solid understanding of programming languages like Java, Python, or Node.js, as well as basic knowledge of databases and data structures, typically gained through coursework or personal projects. Familiarity with version control systems (such as Git), RESTful APIs, and frameworks like Django or Express is commonly required. Strong problem-solving skills, effective communication, and the ability to work collaboratively stand out in this role. These competencies are crucial for efficiently contributing to backend development tasks, integrating with team members, and learning quickly in a fast-paced tech environment.

What is a Backend Developer Intern job?

A Backend Developer Intern is an entry-level role where you assist in building and maintaining the server-side logic of web applications. You will work with databases, APIs, and backend frameworks to ensure efficient data processing and system functionality. Typical tasks include writing and testing code, debugging issues, and collaborating with frontend developers to integrate services. This internship helps you gain hands-on experience in software development and understand industry best practices.

What are the most commonly searched types of Backend Developer jobs in Irvine, CA? The most popular types of Backend Developer jobs in Irvine, CA are:
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Backend Developer Intern jobs near you
Infographic showing various Backend Developer Intern job openings in Irvine, CA as of July 2026, with employment types broken down into 90% Full Time, 5% Part Time, and 5% Contract. Highlights an 82% Physical, 4% Hybrid, and 14% Remote job distribution, with an average salary of $128,900 per year, or $62 per hour.

Senior Software Engineer (Card Present)

EBizCharge

Irvine, CA • On-site

$131K - $173K/yr

Full-time

Re-posted 4 days ago

Job description

Headquartered in Irvine, California, EBizCharge specializes in developing integrated payment solutions that facilitate electronic payment processing within ERP, CRM, Mobile, and eCommerce applications. Our applications are PCI compliant and fully integrated with major ERP/accounting systems, including QuickBooks, Sage, SAP Business One, Microsoft Dynamics, NetSuite, Epicor, Acumatica, and major online shopping carts, including Magento and WooCommerce. EBizCharge offers its employees tremendous learning opportunities, career growth potential, and a dynamic work environment.
We are expanding our Card Present platform, the infrastructure that powers in-person, tap, dip, and swipe transactions at point-of-sale, and are looking for a Senior Engineer who combines deep payments domain expertise with strong backend engineering fundamentals.
Responsibilities
  • Design, develop, and maintain backend services that manage communication between payment terminals and our processing infrastructure, supporting EMV chip, NFC/contactless, and magnetic stripe transaction flows.
  • Integrate with device management platforms and terminal SDKs including solutions such as Clover, Stripe Terminal, Square, and similar off-the-shelf card present providers, adapting their APIs to fit our platform architecture.
  • Implement and maintain device hub capabilities including terminal provisioning, configuration management, firmware coordination, and health monitoring.
  • Own and drive EMV Level 3 certification efforts in partnership with payment networks and device vendors, coordinating test plans, managing certification tooling, and resolving certification findings.
  • Design and build card-present infrastructure with international markets in mind, accounting for regional EMV implementation differences, multi-currency support, and varying certification requirements across acquiring markets.
  • Build scalable, maintainable backend services using .NET and C#, adhering to established architectural patterns and contributing to their evolution.
  • Implement robust retry logic, timeout handling, and graceful degradation to ensure transaction integrity even in the presence of network instability or device failures.
  • Write secure code that meets PCI DSS requirements across all card-present transaction flows, with a particular focus on cardholder data handling, encryption, and key management.
  • Apply point-to-point encryption (P2PE) and tokenization standards correctly within device integration and transaction processing layers.
  • Act as a technical resource and mentor for junior and mid-level engineers on the squad, supporting their growth through pair programming, code review feedback, and knowledge sharing.
  • Document card-present domain knowledge including certification processes, integration quirks, device-specific behaviors

Qualifications
  • Strong proficiency in C# and the .NET ecosystem, with experience building production-grade backend services and APIs.
  • Hands-on experience with EMV payment flows including chip, contactless/NFC, and magnetic stripe, ideally including direct involvement in EMV Level 3 certification processes.
  • Experience integrating with payment terminal hardware and device management platforms, with an understanding of terminal communication protocols (TLV, ISO 8583, or similar).
  • Solid understanding of PCI DSS requirements as they apply to card-present environments, including encryption, key injection, and secure cardholder data handling.
  • Experience designing and building RESTful APIs with a focus on clarity, versioning, and reliability.
  • Proven ability to build low-latency, high-reliability backend services in a payments or similarly demanding production environment.
  • Direct experience with Clover, Stripe Terminal, Square, or similar off-the-shelf card present platforms and their developer SDKs.
  • Familiarity with EMV kernel development/ customization, regional EMV certification requirements and acquiring bank differences across international markets.
  • Background working with Ingenico, Verifone, PAX, or other terminal hardware vendors.
  • Experience with network tokenization or scheme token management in a card-present context.

Job Type: Full-time
The Company is committed to compliance with all applicable laws providing equal employment opportunities. This commitment applies to all persons involved in Company operations. The Company prohibits unlawful discrimination against any job applicant, employee, or unpaid intern by any employee of the Company, including supervisors and coworkers. Pay discrimination between employees of the opposite sex or between employees of another race or ethnicity performing substantially similar work, as defined by the California Fair Pay Act and federal law, is prohibited.

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