1,373 junior software engineer jobs at 522 companies in California

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Junior Engineer (Agile Scrum)
Port Hueneme, California, United States
OnsiteFull Time
Engineering Services Network
Engineering Services Network: A defense-focused engineering and solutions provider delivering mission-critical services to military and government customers.
3+ YOEJunior Engineer with 3-5 years in engineering/software; BS in Engineering; experience with Agile Scrum; strong problem-solving and communication skills; capable of coordinating product teams and stakeholders.
2mo
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Junior Cyber Software Engineer
San Diego, California, United States
$86k-$138k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
2+ YOEBachelor's degree in STEM with 2 years’ experience, or 6 years in software development; TS/SB clearance eligibility; US citizenship; Linux and shell scripting; strong C/C++, Golang, Python, and Java; GitLab/CI-CD experience; data structures and algorithms; networking knowledge.
Linux, Shell Scripting, C/C++, Golang, Python, Java, GitLab, CI/CD
3w
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Software Engineer - Test (Entry-Junior)
Los Angeles or San Francisco
$90k-$161k/yr OnsiteFull Time
Revel
Revel: Modern software platform for controlling complex hardware systems.
0+ YOEBachelor's degree in engineering/physics/computer science,0–2 years' software experience,foundational Python,interest in CI/CD,embedded testing and Linux familiarity,ability to work on hardware-in-the-loop systems,ITAR-eligible status required.
Python, Rust, Linux
2mo
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Junior Software Engineer
San Mateo or Foster City
$85k-$100k/yr HybridFull Time
PTC
PTCNASDAQ: PTC: Provides industrial software for design, manufacturing, and service operations.
0+ YOEUS citizenship required; commute to San Mateo office 2-3 days weekly; 0-2 years web app development; HTML, CSS, JavaScript; React preferred; basic QA; SQL.
HTML, CSS, JavaScript, React, SQL
1mo
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JUNIOR SOFTWARE DEVELOPER (C++)
Norco, California, United States
$75k-$110k/yr OnsiteFull Time
VSolvit
VSolvit: Providing technology services and data solutions for government agencies.
0+ YOE0–4 years software development experience; proficiency in C++ for desktop applications; familiarity with OOP, multithreading, Git, CMake, and Python; U.S. Citizenship and active Secret DoD clearance required; CompTIA Security+ required.
C++, Git, CMake, Python, Jira, Confluence, SAFe, Agile
1w
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Junior Embedded Software Engineer
Los Angeles, California, United States
$100k-$160k/yr HybridFull Time
Observable Space
Observable Space: Developing integrated hardware and software for persistent space observation.
0+ YOE0–2 years embedded software experience, proficiency in C/C++, knowledge of hardware interfaces (I2C,SPI,UART,CAN,PCIe,MIPI), familiarity with embedded Linux and lab tools, strong debugging and communication skills.
C, C++, PCIe, SPI, I2C, UART, MIPI CSI-2, GPIO, CAN, Ethernet, multimeter, oscilloscope, Embedded Linux, Linux kernel, Yocto, Buildroot, Zephyr RTOS
4d
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Software Developer, Entry to Junior
San Diego, California, United States
$80k-$125k/yr OnsiteFull Time
Tactical Engineering & Analysis
Tactical Engineering & Analysis: Provides systems engineering and analysis for military combat systems.
Knowledge of C++, data structures and algorithms, version control, database technologies, testing and debugging, software security, Agile methodologies; Tactical Data Link and Linux development preferred; BS STEM preferred or relevant certification.
C++, Linux, Tactical Data Link (TDL)
1w
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Software Developer (Junior to Journeyman)
China Lake, California, United States
$85k-$100k/yr OnsiteFull Time
JSL Technologies
JSL Technologies: Provides engineering and logistics services to the U.S. Navy.
3+ YOE3+ years software development experience, strong C++ skills, Windows and RHEL proficiency, Visual Studio and Qt Creator experience, ability to obtain U.S. Secret clearance, U.S. work authorization required.
C++, Windows, Red Hat Enterprise Linux (RHEL), Visual Studio, Qt Creator, Ada, Pascal
2w
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Junior Software Packaging Engineer
California or Colorado or Connecticut or Florida or Georgia or Illinois or Kansas or Massachusetts or Maryland or Maine or New Jersey or North Carolina or New York or Oregon or Tennessee or Texas or Virginia or Washington or Austin or Tampa
$85k-$110k/yr HybridFull Time
NinjaOne
NinjaOne: Unified IT platform for automated endpoint management and security.
2+ YOE2+ years technical experience, Windows OS familiarity, scripting or OOP experience, Git knowledge, comfortable with AI coding assistants; packaging, installer analysis, and automation skills.
Java, Kotlin, C++, Golang, Postgres, AWS, Git, PowerShell, Zsh, CI/CD, Copilot, Claude
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Junior Cyber Software Engineer
San Diego, California, United States
$86k-$138k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
2+ YOEBachelor’s degree in STEM with 2 years experience or 6 years relevant work; SECRET clearance with potential TS/SCI; US citizenship; strong Linux, programming in C/C++, Go, Python, Java; GitLab/CI/CD; data structures and networking knowledge.
Linux, C/C++, Go, Python, Java, Git, CI/CD, Shell scripting
1mo
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Software Engineer III
Cupertino, California, United States
$93k-$188k/yr OnsiteFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides edge-to-cloud IT infrastructure and platform services.
2+ YOEBachelor's or Master's in Computer Science/Engineering, 2+ years software engineering experience, proficiency in C/C++, experience with networking protocols (L2/L3) and ASIC/embedded software development.
C, C++, Junos, Junos Evolved, forwarding ASICs
4d
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Software Engineer
Santa Monica, California, United States
$146k/yr RemoteFull Time
Edmunds
Edmunds: Provides automotive research, pricing data, and vehicle shopping tools.
2+ YOEBachelor's in Computer Science or Software Engineering, 2 years experience, knowledge of AWS, Terraform, CI/CD, Git, Python, and REST APIs.
AWS, Terraform, CI/CD, Git, Python, REST APIs, GitLab
1mo
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Software Developer
Sacramento County, California, United States
$7k-$11k/mo OnsiteFull Time
State Controller's Office
State Controller's Office: California's fiscal controller managing state financial operations and assets.
Perform software engineering tasks including planning, developing, and implementing system software projects; must clear background investigation and meet IT Specialist I minimum qualifications.
SDLC, Agile/Scrum, ASP.NET, .NET Core, MVC, C#, HTML, SQL (SSMS), Visual Studio, jQuery, CSS, LINQ, Entity Framework, Microsoft Windows
1mo
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Software Engineer III
Cupertino, California, United States
$93k-$188k/yr OnsiteFull Time
Hewlett Packard Enterprise
Hewlett Packard EnterpriseNYSE: HPE: Provides global edge-to-cloud technology solutions and IT infrastructure services.
2+ YOEBachelor's or Master's in CS/CE, 2+ years software engineering, proficiency in C/C++ and software systems design, knowledge of L2/L3 networking and ASIC/forwarding software, strong analytical and communication skills.
C, C++, Junos, Junos Evolved
1d
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Software Engineer
Berlin or San Francisco
$75k-$160k/yr OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
2+ YOE2+ years professional software engineering experience; proficiency with TypeScript, React, Node.js, Python, and PostgreSQL; experience designing scalable backend architectures and shipping products end-to-end.
TypeScript, React, Node.js, Python, PostgreSQL, Temporal.io, Twilio, Modal
2mo
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Software Engineer
Los Angeles, California, United States
OnsiteFull Time
ALKEME Insurance
ALKEME Insurance: Insurance brokerage and risk management services provider.
Bachelor's degree in CS/Engineering or equivalent experience; proven software development with Java, Python, C#, or JavaScript; familiarity with web frameworks and databases; strong problem-solving and communication skills.
Java, Python, C#, JavaScript, React, Angular, Node.js, SQL, NoSQL
1mo
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Software Engineer
Sunnyvale, California, United States
OnsiteFull Time
Realm Labs
Realm Labs: AI security and observability platform for enterprise models.
2+ YOE2+ years software engineering experience; strong programming in Python, Go, Java, or C++; knowledge of distributed systems, REST/gRPC, relational databases, cloud platforms, and debugging production systems.
Python, Go, Java, C++, PostgreSQL, MySQL, Redis, RabbitMQ, Kafka, Docker, Kubernetes, AWS, GCP, Azure, FastAPI, Terraform, GitHub Actions, OpenTelemetry, Prometheus, Grafana, LLM APIs, REST, gRPC
2w
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Software Engineer
United States or San Francisco
$96k-$169k/yr HybridFull Time
Ethos
EthosNasdaq: LIFE: Provides an online platform for instant life insurance coverage.
2+ YOE2-5 years software engineering experience; full-stack JavaScript/TypeScript, Node or Python; frontend (HTML,CSS,React); API design, security, testing, and feature-flag/A-B experience.
Javascript, Typescript, Node, Python, Optimizely, HTML, CSS, React, Claude Code, Cursor, Copilot, Iterable, Twilio, Salesforce, Regal, Webpack
1mo
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Software Engineer
Milpitas, California, United States
$115k-$195k/yr OnsiteFull Time
KLA
KLANASDAQ: KLAC: Provides process control and yield management solutions for semiconductors.
1+ YOEMaster's degree or Bachelor's plus 1 year in computer engineering/computer science; experience developing software for manufacturing tools; proficiency in Java, Python, C/C++; strong communication and problem-solving skills.
Java, Python, C, C++
1w
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Software Engineer, Notifications
San Francisco, California, United States
$160k-$180k/yr OnsiteFull Time
Discord
Discord: A platform providing voice, video, and text communication services.
2+ YOE2+ years professional software engineering experience; proficiency in Python, Elixir, or Typescript; experience delivering high-quality software and working on notifications or growth teams preferred.
Python, Elixir, Typescript

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