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Entry Level Api Developer Jobs in California (NOW HIRING)

Peterson

MuleSoft Developer

San Leandro, CA · On-site

$56.75 - $75.50/hr

Configure API Gateways, manage Transport Layer Security (TLS) certificates, and implement security ... entry level positions. The position regularly exchanges information in person, in writing, via ...

PetersonCat

MuleSoft Developer

San Leandro, CA

$56.75 - $75.50/hr

Configure API Gateways, manage Transport Layer Security (TLS) certificates, and implement security ... entry level positions. The position regularly exchanges information in person, in writing, via ...

Sidecar

Software Engineer - Fraud

San Francisco, CA

Currently our backend API is written in PHP using the Codeigniter framework and other technologies ... Strong engineering background coupled with experience around machine learning, pattern recognition ...

Acuren Inspection, Inc.

CR/DR Technician

Torrance, CA

$37.02 - $45.67/hr

... ASME, API, AWS). * Prepare and position components or materials for inspection, ensuring proper ... Collaborate with NDT supervisors, engineers, and quality control teams to ensure inspections meet ...

Acuren

CR/DR Technician

Torrance, CA

$37.02 - $45.67/hr

... ASME, API, AWS). Prepare and position components or materials for inspection, ensuring proper ... Collaborate with NDT supervisors, engineers, and quality control teams to ensure inspections meet ...

New

Acuren Inspection, Inc.

CR/DR Technician

Torrance, CA

$37.02 - $45.67/hr

... ASME, API, AWS). * Prepare and position components or materials for inspection, ensuring proper ... Collaborate with NDT supervisors, engineers, and quality control teams to ensure inspections meet ...

Acuren Inspection, Inc.

CR/DR Technician

Torrance, CA · On-site

$37.02 - $45.67/hr

... ASME, API, AWS). * Prepare and position components or materials for inspection, ensuring proper ... Collaborate with NDT supervisors, engineers, and quality control teams to ensure inspections meet ...

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Entry Level Api Developer information

What are some common challenges faced by entry level API developers when working on cross-functional teams?

Entry-level API developers often encounter challenges such as understanding the varying requirements of front-end developers, backend engineers, and QA testers. Communication can be complex, as each team may use different technical jargon and prioritize different aspects of the project. Learning to effectively document APIs and handle feedback from diverse stakeholders is key to ensuring smooth collaboration and a successful integration process. Developing strong interpersonal and problem-solving skills will help new API developers quickly adapt and contribute to their teams.

What are the key skills and qualifications needed to thrive as an entry level API developer, and why are they important?

To thrive as an Entry Level API Developer, you need foundational programming skills (often in languages like JavaScript, Python, or Java), understanding of RESTful principles, and a relevant computer science degree or equivalent experience. Familiarity with tools such as Postman, Swagger, Git, and basic cloud platforms, as well as knowledge of API documentation standards, is commonly expected. Strong problem-solving abilities, attention to detail, and effective communication skills are valuable soft skills in this role. These capabilities are crucial for building robust, scalable APIs and for collaborating efficiently with team members and stakeholders.

What does an entry level API developer do?

An Entry Level API Developer is responsible for designing, building, and maintaining Application Programming Interfaces (APIs) that allow different software applications to communicate with each other. They typically work with senior developers to implement API endpoints, ensure data security, and write documentation for their code. Entry level API developers also test APIs for functionality and troubleshoot any issues that arise. This role provides a foundation for learning best practices in software development and gaining experience with various programming languages and frameworks.

What is the difference between Entry Level Api Developer vs Junior Software Developer?

AspectEntry Level Api DeveloperJunior Software Developer
Required CredentialsBachelor's in CS or related field, basic programming skillsBachelor's in CS or related field, foundational programming skills
Work EnvironmentTech companies, startups, or IT departmentsTech firms, software companies, or IT teams
Employer & Industry UsageCommonly used in API-focused roles across industriesUsed broadly in software development across industries
Search & Comparison IntentOften compared for entry-level API rolesCompared for general software development roles

The Entry Level Api Developer and Junior Software Developer roles share similar educational backgrounds and work environments. However, the API Developer focuses specifically on designing and maintaining APIs, while the Junior Software Developer has a broader scope in software development. Both roles are suitable for recent graduates and entry-level candidates seeking to start their careers in tech.

What are the most commonly searched types of Api Developer jobs in California? The most popular types of Api Developer jobs in California are:
What are popular job titles related to Entry Level Api Developer jobs in California? For Entry Level Api Developer jobs in California, the most frequently searched job titles are:
What job categories do people searching Entry Level Api Developer jobs in California look for? The top searched job categories for Entry Level Api Developer jobs in California are:
What cities in California are hiring for Entry Level Api Developer jobs? Cities in California with the most Entry Level Api Developer job openings:
Entry Level Api Developer jobs near you
Infographic showing various Entry Level Api Developer job openings in California as of June 2026, with employment types broken down into 1% Locum Tenens, 10% As Needed, 40% Full Time, 42% Part Time, 2% Temporary, and 5% Contract. Highlights an 77% Physical, 5% Hybrid, and 18% Remote job distribution.

MuleSoft Developer

Peterson

San Leandro, CA • On-site

$56.75 - $75.50/hr

Full-time

Posted 6 days ago

Job description

It's your time, make it matter.
At Peterson, we partner with our customers to build the future. For over 85 years, our peoples' work has shaped the communities where we live, where we raise our families, and where we thrive. Peterson's legacy permeates every aspect of our communities. From roads and bridges, back-up power at hospitals, fire-fighting, concerts and moving goods; we are everywhere you look. At Peterson, you don't just have a career, you have a purpose.
Our family-oriented environment is built on safety, winning, growth, and professional achievement. Hiring and developing exceptional people is critical to our continued success. We have high standards for a good reason: our people represent Peterson, our family, our brand, and our values.
You have high expectations too. You are exceptionally motivated, have outstanding skills, and want your work to matter. Peterson offers competitive wages, generous benefits, and promotional opportunities at a family-owned and operated business. It's time to use your skills and passion to do work that matters!
Job Description
ESSENTIAL JOB FUNCTIONS
The following reflects management's definition of essential functions for this job but does not restrict the tasks that may be assigned. Management may assign or reassign the functions to this job at any time due to reasonable accommodation or other reasons. Job functions include the following. Other duties may be assigned.
  • Develop, modify, test, and support MuleSoft integration code using established Peterson development standards and architecture patterns.
  • Build and maintain basic Application Programming Interfaces (APIs), flows, connectors, and DataWeave transformations for assigned integration work.
  • Participate in translating business and technical requirements into MuleSoft application logic with guidance from senior team members.
  • Apply software development standards through participation in code reviews and refactoring to improve code quality.
  • Use Git/Azure Repos, pull requests, and Continuous Integration and Continuous Delivery/Deployment (CI/CD) pipelines to support code review, build, and deployment activities.
  • Assist with deployment of MuleSoft APIs and integration artifacts across Development, Test, and Production environments using approved procedures.
  • Develop and maintain basic DataWeave transformations for JavaScript Object Notation (JSON), Extensible Markup Language (XML), (Comma-Separated Values) CSV, and API payload mapping, with guidance.
  • Configure API Gateways, manage Transport Layer Security (TLS) certificates, and implement security policies to protect data flows.
  • Troubleshoot assigned defects, connectivity issues, failed jobs, and data transformation errors; escalate complex production, security, or architecture issues as appropriate.
  • Support API Manager configuration, security policy application, certificate-related tasks, and platform maintenance activities under direction.
  • Prepare and maintain technical documentation, deployment notes, support runbooks, and troubleshooting guides.
  • Maintain punctual, regular, and predictable attendance.

JOB SCOPE
This position serves in the capacity of the MuleSoft Developer. General discretion and judgment are exercised routinely in the execution of job duties. If errors in judgment or professional execution of responsibilities are made, the consequences to the Department can be serious.
INTERPERSONAL CONTACTS
Internal contacts consist of various levels of positions in the company from business unit leaders to entry level positions. The position regularly exchanges information in person, in writing, via telephone or by electronic transfer. The position regularly deals with confidential information related to Peterson's IT systems. Sensitivity is required in dealing with such information and decisions concerning the release or sharing of that information. External contacts may consist of customers, visitors, manufacturer representatives, vendors, and consultants.
QUALIFICATIONS
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily, safely and in alignment with Peterson's core values. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
  • Basic software development abilities using Java, JavaScript, object-oriented programming, or similar programming concepts.
  • Ability to write basic SQL/SOQL queries and understand relational data concepts.
  • Working knowledge of Representational State Transfer Application Programming Interface (REST) APIs, JSON, XML, and integration concepts.
  • Ability to troubleshoot technical issues using logs, error messages, and structured problem-solving.
  • Strong learning orientation, documentation habits, and ability to follow established development standards.

EDUCATION and/or EXPERIENCE
Bachelor's Degree from a fully accredited college in Computer Science, Software Engineering, or other closely related field; and a minimum of six (6) months of directly related experience in software development, preferably in a heavy industrial environment; or an equivalent combination of education and work experience.
Preferred Experience
  • Working experience with MuleSoft Anypoint Platform, Anypoint Studio, DataWeave, API Manager, Exchange, or Runtime Manager.
  • Familiarity with Salesforce objects, SOQL, APIs, and basic APEX concepts.
  • Experience with Git, Azure DevOps, CI/CD pipelines, or similar development lifecycle tools.
  • Experience supporting enterprise systems integrations.

CERTIFICATES, LICENSES, REGISTRATIONS
  • MuleSoft Certified Developer - Level 1 required (Level 2 preferred)

Rate Range DOE:
$77,744.20 - $85,329 - $94,810
Peterson Holding Company is committed to equal employment opportunity and affirmative action. Minorities, females, veterans, and individuals with disabilities are encouraged to apply. A drug screen and background check is required.

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