Back End Developer Intern Jobs in Diamond Bar, CA

Hi, We're Centerfield!

Supercharged customer acquisition. Centerfield delivers outcome-based digital marketing solutions and personalized omnichannel experiences for the world’s leading brands. Powered by our proprietary Dugout platform, Centerfield acquires customers at scale for leading residential service, insurance, e-commerce, and B2B brands. Centerfield’s digital experiences and digital brands, such as Business.com and BroadbandNow.com, reach more than 150 million in-market shoppers annually. Centerfield is headquartered in Silicon Beach and is proud to be recognized by Built in LA as a Best Place to Work in Los Angeles.

The Opportunity...

As a Software Engineering intern at Centerfield, you’ll work directly with our Engineering team. You’ll help create online and offline customer acquisition features for Centerfield products. You’ll learn how to develop intelligent digital advertising technology; focused on real-time biddable media.

You will be involved in the full software development lifecycle of AI-powered conversational omnichannel platforms, from initial design to final testing. These platforms will provide seamless customer experiences across various channels.

You will contribute to the development of data-driven insights and products by constructing APIs that integrate multiple data streams. These APIs will fuel our data engineering and science teams, enabling them to derive valuable insights to share with stakeholders and partners.

We provide interns with the skills and tools to be successful as they start their careers. Centerfield is a learning environment. That means you’ll learn what high-quality code looks like and make a direct impact on our team’s success. Most importantly, we’re looking for a new addition to join our team.

How You'll Contribute...

• Contribute to the development of internal platforms and services that power analytics, reporting, and business insights across the organization

• Build and maintain APIs and backend services that connect multiple data sources and systems

• Work on distributed, event-driven applications that process and deliver data at scale

• Collaborate with engineering, data engineering, and data science teams to support machine learning and analytics initiatives

• Gain experience designing, building, and operating cloud-based applications and services

• Participate in the evolution of scalable system architectures, data pipelines, and platform capabilities

What We're Looking For...

• Experience with C# and .NET development (required)

• Understanding of SQL and relational database concepts, including database design and writing queries

• Familiarity with web development basics, including HTML, CSS, and JavaScript

• Knowledge of software development fundamentals: source control, debugging, OOP

• Rising seniors or new graduates (update year as needed)

• Local to Playa Vista HQ and willing to come into the office 3 days a week

• Pursuing a degree in Computer Science or a relevant field

Bonus Points!

• Experience with React or other modern front-end frameworks

• Exposure to Node.js, Python, or Java

• Familiarity with cloud platforms, particularly AWS or Google Cloud Platform (GCP)

• Experience with messaging and event-driven systems such as Kafka, Amazon SQS, RabbitMQ, or similar technologies

• Understanding of REST APIs and distributed system concepts

• Exposure to containerization technologies such as Docker

Intern Life at Centerfield…

• This is a hybrid position, and employees are expected to work in our Playa Vista, CA office every Tuesday, Wednesday & Thursday.

• Outside patio overlooking Playa Vista + cabanas, firepits & working grills.

• Breakroom supplied with games, couches, workout equipment + weekly in-office exercise classes hosted by professional instructors (yoga, kickboxing & circuit training).

• Paid charity and volunteer days (local mentor programs, adopt a pet, beach cleanup, etc.).

• Unlimited free snacks and drinks around the office!

• Monthly happy hours, catered Thursday lunches.

• Award-winning culture & unprecedented team spirit (featured in LA Business Journal & Built In LA Best Places to Work).

• Monthly team outings (ball games, casino night, hikes, etc.).

• Career growth – we enjoy promoting from within!

#LI-Hybrid

#LI-AA1

AI & Interview Policy

At Centerfield, we use AI tools internally to support efficiency and fairness in our hiring process, including resume screening and administrative tasks.

Candidates are welcome to use AI tools ethically to prepare for interviews, such as practicing responses or researching questions. However, all responses during the interview process should reflect your own knowledge, experience, and judgment.

The use of AI tools to generate responses during live interviews, technical assessments, or written submissions is not permitted unless explicitly stated otherwise.

To learn more, visit us Here.

Interviews will take place after resumes have been screened for the minimum requirements. Please note that this position is not restricted solely to the responsibilities listed above and that the job scope and responsibilities are subject to change.

For more information about our collection, use, and disclosure of your personal information in connection with our evaluating your candidacy, please visit our Privacy Policy at https://www.centerfield.com/privacy-policy/.

Centerfield Media is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected under federal, state or local law.