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Entry Level Junior Software Engineer Jobs in California

Prosum Inc.

Junior Software Engineer

Temecula, CA · On-site

$115K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

Junior Software Engineer Cryptography, Systems & Secure Infrastructure Role Type: Junior Software Engineer (Hands-On Growth Role) Core Technologies: C/C++, Python, Linux, Containers, Security ...

PTC

Junior Software Engineer

San Mateo, CA · On-site

$85K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Junior Software Engineer Hybrid-San Mateo, CA. About Arena Arena, a PTC business, helps high-tech manufacturers and medical device companies build products that change the world. Our cloud-based PLM ...

PTC

Junior Software Engineer

San Mateo, CA · On-site

$85K - $100K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Junior Software Engineer Hybrid-San Mateo, CA. About Arena Arena, a PTC business, helps high-tech manufacturers and medical device companies build products that change the world. Our cloud-based PLM ...

The Climate Registry

Jr. Software Developer

Los Angeles, CA

$72K - $93K/yr

  • Medical

  • Dental

  • Retirement

... Required Qualifications * Entry-level to two years of experience working with web-based ... Junior Software Developer". Applications without a cover letter will not be considered. All ...

The Climate Registry

Jr. Software Developer

Los Angeles, CA · On-site

$72K - $93K/yr

  • Medical

  • Dental

  • Retirement

... Required Qualifications * Entry-level to two years of experience working with web-based ... Junior Software Developer". Applications without a cover letter will not be considered. All ...

The Climate Registry

Jr. Software Developer

Los Angeles, CA · On-site

$72K - $93K/yr

  • Medical

  • Dental

  • Retirement

... Required Qualifications * Entry-level to two years of experience working with web-based ... Junior Software Developer". Applications without a cover letter will not be considered. All ...

Cesna Group

Junior Software Engineer

San Diego, CA · On-site

$50K - $100K/yr

We are seeking a Junior Software Engineer to join our Ez-X medical X-ray system development team. This role involves close collaboration with Vision, Control, Mechanical, and X-Ray hardware teams to ...

FLIGHTSTORY

Junior Software Engineer

Los Angeles, CA

$95K/yr

JUNIOR SOFTWARE ENGINEER COMPANY : STEVEN.COM REPORTING TO : VP of ENGINEERING LOCATION: LOS ANGELES SALARY: UP TO $95K ABOUT STEVEN.COM Steven.com is building the operating system for the creator ...

FlightStory

Junior Software Engineer

Los Angeles, CA · On-site

$95K/yr

JUNIOR SOFTWARE ENGINEER COMPANY : STEVEN.COM REPORTING TO : VP of ENGINEERING LOCATION: LOS ANGELES SALARY: UP TO $95K ABOUT STEVEN.COM Steven.com is building the operating system for the creator ...

Mechanize

Junior Software Engineer

San Francisco, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...

Mechanize

Junior Software Engineer

San Francisco, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...

Mechanize

Junior Software Engineer

San Francisco, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...

Mechanize

Junior Software Engineer

San Francisco, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...

Mechanize

Junior Software Engineer

Burlingame, CA

$144.23/hr

  • Medical

  • Dental

  • Vision

  • Life

Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...

Mechanize

Junior Software Engineer

Oakland, CA

  • Medical

  • Dental

  • Vision

  • Life

Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...

Mechanize

Junior Software Engineer

San Francisco, CA · On-site

  • Medical

  • Dental

  • Vision

  • Life

Each task is a self-contained software engineering challenge with a prompt, an environment, and an automated grader. You own the full lifecycle: coming up with the idea, implementing the grading ...

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All JobsSoftware Engineer JobsEntry Level Junior Software Engineer JobsEntry Level Junior Software Engineer Jobs in California

Entry Level Junior Software Engineer information

What does an entry level junior software engineer do?

An Entry Level Junior Software Engineer is typically responsible for assisting with designing, coding, testing, and maintaining software applications under the supervision of more experienced engineers. They often work on fixing bugs, writing simple code modules, and learning about the company's software development processes. This role is a starting point for new graduates or individuals with limited professional experience, allowing them to build foundational skills and gain exposure to real-world software projects.

What are the key skills and qualifications needed to thrive as an entry level junior software engineer?

To thrive as an Entry Level Junior Software Engineer, you need a solid understanding of programming fundamentals, algorithms, and data structures, typically supported by a degree in computer science or a related field. Familiarity with common programming languages (such as Java, Python, or JavaScript), version control systems like Git, and basic knowledge of software development tools is essential. Strong problem-solving skills, attention to detail, and effective communication set standout candidates apart. These skills and qualities are crucial for successful collaboration, writing reliable code, and contributing effectively to team-based software projects.

What are some common challenges faced by entry level junior software engineers during their first year on the job?

Entry Level Junior Software Engineers often encounter the challenge of adapting to new codebases and development tools, which may differ significantly from what they've used in school or internships. They may also find it difficult to estimate task durations or understand complex requirements without prior experience. Frequent collaboration with senior engineers and participating in code reviews can help accelerate learning and build confidence. Over time, mastering effective communication and time management becomes essential for success in fast-paced development environments.

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

AspectEntry Level Junior Software EngineerSoftware Developer
Required CredentialsBachelor's in CS or related field; some internshipsBachelor's in CS or related field; coding experience
Work EnvironmentTeam-based, collaborative projects, entry-level tasksProject-focused, coding, debugging, and implementation
Employer & Industry UsageTech companies, startups, IT departmentsSoftware firms, tech startups, enterprise IT
Common Search & ComparisonYesYes

Entry Level Junior Software Engineers and Software Developers often share similar educational backgrounds and work environments. The main difference lies in job focus: engineers may be involved in designing systems and architecture, while developers typically focus on coding and implementation. Both roles are common in tech industries and often overlap in entry-level positions, making them frequently compared by job seekers.

Can I become an entry level junior software engineer with no experience?

Entry level junior software engineer positions often require some foundational knowledge of programming languages such as Python, Java, or C++, and familiarity with development tools. While prior work experience is not always necessary, demonstrating coding skills through projects, internships, or certifications can improve your chances of securing an entry-level role.

Is 25 too late to become an entry level junior software engineer?

Entry level junior software engineer roles are open to individuals of various ages, including those starting their careers at 25 or later. Many employers value skills, relevant training, and a willingness to learn over age, and career changers often successfully transition into these roles by gaining programming skills through courses, certifications, or self-study.

What are the most commonly searched types of Junior Software Engineer jobs in California?

The most popular types of Junior Software Engineer jobs in California are:

What are popular job titles related to Entry Level Junior Software Engineer jobs in California?

For Entry Level Junior Software Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Entry Level Junior Software Engineer jobs in California look for?

The top searched job categories for Entry Level Junior Software Engineer jobs in California are:

What cities in California are hiring for Entry Level Junior Software Engineer jobs?

Cities in California with the most Entry Level Junior Software Engineer job openings:

Entry Level Junior Software Engineer jobs near you
Infographic showing various Entry Level Junior Software Engineer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 90% Full Time, 6% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution.

Junior Software Engineer

Xoriant Corporation

San Jose, CA • On-site

Other

Posted 6 days ago

Job description

Job Title: Junior Software Engineer

Location: San Jose, CA (Onsite)

Description

We''re looking for a junior software engineer who can help build production applications powered by agentic AI. You''ll work primarily in Python, designing and integrating APIs and shipping features that incorporate LLM capabilities into real software systems.

Requirements

• BS in Computer Science, Software Engineering, or related field — or equivalent practical experience

• 0 – 2 years of software engineering experience; internships, co-ops, and substantial personal/open-source projects count

• Solid Python fundamentals: writing clean, testable code, working with common tooling (git, virtual environments, debugging), and reading others'' code

• Experience building or integrating with REST APIs, e.g., experience in designing endpoints (FastAPI, Flask, Django), consuming third-party APIs, handling authentication, pagination, and/or error cases

• Basic software engineering hygiene: version control, code review, writing tests, and working in a team workflow

• Familiarity with agentic AI concepts — tool/function calling, prompt chaining, or agent loops — demonstrated through coursework, hackathons, personal projects, or work experience. Exposure to frameworks like LangGraph, LangChain, or similar is a strong plus

• Some hands-on experience calling LLM APIs (OpenAI, Anthropic, or open-source models) as part of a larger application Bonus

• Exposure to databases (SQL or NoSQL), caching, or message queues

• Experience with async/concurrent programming in Python

• Familiarity with RAG concepts: embeddings, vector databases, retrieval pipelines

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