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Python Junior Jobs in California (NOW HIRING)

Peraton

Junior Cyber Software Engineer

San Diego, CA · On-site

$86K - $138K/yr

Responsibilities Peraton is seeking a Junior Level Cyber Software Engineer to support our Atlantis ... Strong Programming sjkills in C/C++, Golang, Python, and JAVA * Experience with Software ...

Peraton

Junior Cyber Software Engineer

San Diego, CA

$86K - $138K/yr

Responsibilities Peraton is seeking a Junior Level Cyber Software Engineer tosupport our Atlantis ... Strong Programming sjkills in C/C++, Golang, Python, and JAVA * Experience with Software ...

Peraton

Junior Cyber Software Engineer

San Diego, CA

$86K - $138K/yr

Responsibilities Peraton is seeking a Junior Level Cyber Software Engineer tosupport our Atlantis ... Strong Programming sjkills in C/C++, Golang, Python, and JAVA * Experience with Software ...

Qcells

Junior Software Engineer

Santa Clara, CA

$30 - $50/hr

We are seeking a motivated Junior Software Engineer (Temporary) to join our Grid & Energy Services ... Proficiency in Python, including experience writing scripts, functions, and at least one project of ...

Qcells

Junior Software Engineer

Santa Clara, CA · On-site

$30 - $50/hr

We are seeking a motivated Junior Software Engineer (Temporary) to join our Grid & Energy Services ... Proficiency in Python, including experience writing scripts, functions, and at least one project of ...

Leidos

Junior Signal Processing Engineer

San Diego, CA · On-site

$69K - $125K/yr

Leidos currently has an opening for a Junior Signal Processing Engineer to support EW programs in ... Experience with tools such as MATLAB, Linux, Mathematica, Python, Simulink - and languages such as ...

Cotality

Principal Software Engineer (Python)

Irvine, CA · On-site

$144K - $194K/yr

Mentor Senior & Junior Engineers: Act as a technical mentor and coach, sharing expertise in Python, Semantic AI, and Cloud Architecture to upskill the broader engineering organization. Job ...

Cotality

Principal Software Engineer (Python)

Irvine, CA · On-site +1

$144K - $194K/yr

Mentor Senior & Junior Engineers: Act as a technical mentor and coach, sharing expertise in Python, Semantic AI, and Cloud Architecture to upskill the broader engineering organization. Job ...

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Python Junior information

See California salary details

$23.7K

$87.8K

$135.7K

How much do python junior jobs pay per year?

As of Jul 9, 2026, the average yearly pay for python junior in California is $87,810.00, according to ZipRecruiter salary data. Most workers in this role earn between $66,100.00 and $85,900.00 per year, depending on experience, location, and employer.

What are some common challenges faced by Python Junior developers during their first year on the job?

Python Junior developers often encounter challenges such as understanding large codebases, managing version control with tools like Git, and adapting to team workflows. They may also need to improve their debugging skills and learn to write clean, maintainable code that meets team standards. Regular communication with senior developers and proactively seeking feedback can help overcome these hurdles and accelerate professional growth.

What is the difference between Python Junior vs Python Developer?

AspectPython JuniorPython Developer
Required CredentialsBasic programming knowledge, often a diploma or bootcampMore experience, often a degree in CS or related field
Work EnvironmentEntry-level projects, supervised tasksFull project responsibilities, collaborative teams
Industry UsageInternships, junior roles in tech companiesMid-level roles across industries like finance, tech, healthcare

The main difference between a Python Junior and a Python Developer lies in experience and responsibilities. Python Juniors typically have basic skills and work under supervision, while Python Developers handle more complex tasks independently. Employers seek Python Juniors for entry-level positions, with opportunities to grow into full Python Developers as skills develop.

What are the key skills and qualifications needed to thrive as a Python Junior, and why are they important?

To thrive as a Python Junior, you need a good grasp of Python programming fundamentals, problem-solving abilities, and a relevant degree or coursework in computer science or a related field. Familiarity with version control systems like Git, code editors (e.g., VS Code), and basic understanding of frameworks such as Django or Flask is often expected. Strong communication, willingness to learn, and teamwork are important soft skills that set candidates apart. These skills and qualities are essential for effectively contributing to projects, collaborating with team members, and growing within a technical environment.

What are Python Juniors?

Python Juniors are entry-level software developers who specialize in using the Python programming language. They typically have foundational knowledge of Python and basic software development principles, and may work on tasks such as writing simple scripts, debugging code, or supporting more experienced developers on larger projects. Python Juniors are often recent graduates or individuals transitioning into software development, and their role offers opportunities to learn and grow their skills in real-world settings.
What are the most commonly searched types of Python jobs in California? The most popular types of Python jobs in California are:
What are popular job titles related to Python Junior jobs in California? For Python Junior jobs in California, the most frequently searched job titles are:
What job categories do people searching Python Junior jobs in California look for? The top searched job categories for Python Junior jobs in California are:
What cities in California are hiring for Python Junior jobs? Cities in California with the most Python Junior job openings:
Python Junior jobs near you
Infographic showing various Python Junior job openings in California as of July 2026, with employment types broken down into 56% Full Time, 33% Part Time, and 11% Temporary. Highlights an 89% In-person, and 11% Remote job distribution, with an average salary of $87,810 per year, or $42.2 per hour.
Junior Cyber Software Engineer

Junior Cyber Software Engineer

Peraton

San Diego, CA • On-site

$86K - $138K/yr

Full-time

Re-posted 3 days ago

Peraton rating

8.2

Company rating: 8.2 out of 10

Based on 53 frontline employees who took The Breakroom Quiz

47th of 208 rated it services

Job description

Responsibilities
Peraton is seeking a Junior Level Cyber Software Engineer to support our Atlantis Program contract at the Naval Information Warfare Center Pacific (NIWC PAC) facility in San Diego, CA.
As the Sub contractor on the Atlantis task order, Peraton is responsible is supporting a Multi-level Security (MLS) Command, Control, Communications, Computers, and Intelligence (C4I) system providing situational tracking and management capabilities, full message processing tools, and a variety of analysis utilities, along with office, e-mail, chat, and web browsing applications
What you will do:
As a Junior Level Cyber Software Engineer you will support tasks to continue current operations, support the planned growth as determined by life cycle support, maintenance and sustainment, system administration support, upgrade and logistics support of the Joint Cross Domain Exchange (JCDX) system, networked and deployed globally in support of U.S. Sponsors.
Responsibilities may include:
  • Software Development, design, develop, test, and maintain software applications using modern programming language.
  • System Design, Contribute to the design and architecture of scalable and efficient software systems.
  • Linux Experience; utilizing advance Linux skills including kernel development, for a software development and system optimization.
  • Code Review; Participate in code reviews, provide feedback, and improve code quality.
  • Collaboration; work closely with cross functional teams including product management, QA, and operations to deliver high quality products.
  • Problem Solving; Identify, troubleshoot, and resolve complex software issues in a timely manner.
  • Documentation: Create and maintain detailed technical documentation for software systems and processes.
  • Continuous Learning; Stay updated with emerging technologies and industry trends and apply knowledge to improve existing systems and processes.

Qualifications
What you will need::
  • Bachelor's Degree in STEM related field with 2 years, 0 years with MS/MA, or 6 years of relevant experience in Software Development.
  • Basic experience with system installation/configuration and/or basic programming skills
  • Minimum SECRET Clearance and must be able to obtain final TS Security Clearance with SSBI and SCI access.
  • US Citizenship is required.
  • Proficient in Linux Operating systems and shell scripting
  • Strong Programming sjkills in C/C++, Golang, Python, and JAVA
  • Experience with Software development tools and practices (e.g., Gitlab, CI/CD)
  • Solid understanding of data structures, algorithms, and software design patterns.
  • Familiarity with networking concepts and protocols.

Desired
  • Understanding PCOIP

Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can't be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we're keeping people around the world safe and secure.
Target Salary Range
$86,000 - $138,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual's experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.
EEO
EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.

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About Peraton

Sourced by ZipRecruiter

At Peraton, we re at the forefront of delivering the next big thing every day. We re the partner of choice to help solve some of the world s most daunting challenges, delivering bold, new solutions to keep people around the world safer and more secure.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Herndon, VA, US

Year founded

2017

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