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Junior Level Software Engineer Jobs in California

Prosum Inc.

Junior Software Engineer

Temecula, CA · On-site

$115K - $120K/yr

Junior Software Engineer (Hands-On Growth Role) Core Technologies ... C/C++, Python, Linux, Containers, Security Experience Level: 2+ years of professional experience ...

Zof AI

Junior Software Engineer

San Francisco, CA · On-site

Engineering · Junior / Level 2 · Full-time · On-site · San Francisco, CA Responsibilities ... Strong curiosity about AI and software products. * Willingness to use AI tools deeply. * Clear ...

Vets Hired

Senior Software Engineer

Sunnyvale, CA

$143K - $189K/yr

Serves as a guide and mentor for junior level Software Development Engineers. Assists in tracking and evaluating performance metrics. Ensures team delivers software on time, to specification and ...

EQL Tech

Mid-Level Software Engineer

San Francisco, CA · On-site +1

The role You would be the second engineer in-house, working alongside the Lead Software Engineer and an external technical consultant. The platform is mid-migration. A legacy monolith is being ...

Gamma Scientific

Software Engineer

San Diego, CA

Mid-Level Software Engineer Location: San Diego, CA (Onsite) Department: Software Engineering Reports To: Software Engineering Manager Position Summary Gamma Scientific is seeking a talented and ...

CPMC LLC

Jr. Software Engineer (SECRET)

San Diego, CA · On-site

... Levels: Jr. - Mid Level Clearance: Active Security Clearance (Secret or higher) is preferred ... We are hiring for both Mid-Level and Senior-Level positions. Software Engineers research, design ...

Mibura

Junior Software Engineer

Mountain View, CA · On-site

Join Mibura Inc, a disruptive cloud platform company, as a Junior Software Engineer and help build the next generation of distributed computing infrastructure. We're looking for individuals who ...

IT America Inc

Staff Software Engineer

Hercules, CA · On-site

Mentor junior and mid-level software engineers by sharing best practices in embedded development, performing design and code reviews, and guiding problem solving. Lead architectural discussions and ...

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Infographic showing various Junior Level 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

Temecula, CA • On-site

Prosum Inc.
Recruiting and Staffing Services • 201 - 500 employees
Learn more about Prosum Inc.external

$115K - $120K/yr

Other

Medical, Dental, Vision, Retirement

Re-posted 7 days ago

Key responsibilities

  • Contribute to the development, testing, and maintenance of security-focused software products.

  • Design, write, debug, and enhance software using C/C++, Python, or other systems-level languages.

  • Develop automated tests, developer tools, and workflows that improve software quality and engineering efficiency.

Job description

Job Description
Junior Software Engineer
Cryptography, Systems & Secure Infrastructure
Role Type: Junior Software Engineer (Hands-On Growth Role)
Core Technologies: C/C++, Python, Linux, Containers, Security
Experience Level: 2+ years of professional experience with strength in at least one core technical area
About the Opportunity
Our client is an innovative technology company developing advanced cybersecurity and secure communications solutions for high-assurance environments. Their engineering team builds software and infrastructure focused on secure systems, modern cryptography, cloud platforms, and next-generation security technologies. This is an opportunity to work alongside experienced engineers on products designed to address today's cybersecurity challenges while preparing for emerging threats.
Position Overview
We are seeking an early-career Software Engineer with strong programming fundamentals and an interest in developing secure, reliable software. This role is ideal for someone with approximately two or more years of professional experience and exposure to one or more of the following areas:
  • C/C++ systems development
  • Cryptography or cybersecurity
  • Containerized development environments
  • Python-based automation, testing, or developer tooling
Candidates are not expected to have expertise across all of these areas. We are looking for engineers who are curious, practical, eager to learn, and excited to grow within a collaborative engineering environment.
Key Responsibilities
  • Contribute to the development, testing, and maintenance of security-focused software products.
  • Design, write, debug, and enhance software using C/C++, Python, or other systems-level languages.
  • Develop automated tests, developer tools, and workflows that improve software quality and engineering efficiency.
  • Support containerized development environments using technologies such as Docker and Kubernetes.
  • Investigate software defects, performance issues, and system behavior in Linux/POSIX environments.
  • Participate in code reviews and follow secure coding, memory safety, and concurrency best practices.
  • Collaborate with cross-functional engineering teams throughout the software development lifecycle.
Required Qualifications
  • 2+ years of professional software engineering experience.
  • Strong programming skills in C, C++, Python, Rust, Go, or another systems/backend programming language.
  • Experience in at least one of the following:
    • C/C++ or systems-level software development
    • Cryptography, cybersecurity, or security-focused software
    • Docker, Kubernetes, or containerized development
    • Python-based testing, automation, or developer tooling
  • Familiarity with Linux or other POSIX-based operating systems.
  • Experience using Git and debugging software applications.
  • Interest in secure software development, cryptography, cloud infrastructure, or systems engineering.
Preferred Qualifications
  • Academic or professional experience in cryptography, cybersecurity, networking, or distributed systems.
  • Familiarity with encryption concepts, secure communications, TLS, IPsec, or key management.
  • Exposure to memory safety, concurrency, debugging tools, compiler technologies, or performance optimization.
  • Experience with Docker, Kubernetes, CI/CD pipelines, cloud platforms, vulnerability scanning, SBOMs, or container security.
  • Contributions to open-source software, security tools, systems software, or technical research projects.
Education
Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Mathematics, or a related technical discipline.
Compensation & Benefits
  • Competitive base salary in the range of $115,000-$120,000 USD, depending on experience and qualifications.
  • Comprehensive medical, dental, and vision insurance.
  • 401(k) with employer matching.
  • Competitive benefits package and opportunities for professional growth.

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