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Junior Developer Startup Jobs in California (NOW HIRING)

Senior Electical Engineer (POWER)

Walnut Creek, CA · Hybrid

$119K - $155K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

The ideal candidate will bring deep technical expertise in power engineering, mentor junior ... Lead and participate in field investigations and startup/commissioning activities. * Provide ...

... team. • Mentor junior engineers and contribute to a culture of technical excellence ... Go, GRPC, Kubernetes, React, Typescript, AWS and Terraform. • Early-stage experience at a startup ...

Senior GenAI Engineer (Python)

Palo Alto, CA · On-site

$142K - $192K/yr

About Us: We are an innovative AI startup focused on transforming professional services through ... As a Senior GenAI Developer, you will lead the design, development, and deployment of scalable ...

Senior GenAI Engineer (Python)

Palo Alto, CA · Hybrid

$142K - $192K/yr

About Us: We are an innovative AI startup focused on transforming professional services through ... As a Senior GenAI Developer, you will lead the design, development, and deployment of scalable ...

... team. • Mentor junior engineers and contribute to a culture of technical excellence ... Typescript, GRPC, Go, Kubernetes, React, AWS and Terraform. • Early-stage experience at a startup ...

Senior Mechanical Engineer

San Francisco, CA · On-site

$120 - $150/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Provide technical leadership and mentorship to junior engineers Required Qualifications and Skills ... Experience in early‑stage or startup environments * Hands‑on prototyping and lab testing ...

Senior Battery Engineer

Los Angeles, CA · On-site

$180K - $220K/yr

Mentor junior engineers as the engineering organization continues to grow. Required Qualifications ... Startup product development * R&D through production launches * SBIR or government-funded ...

Senior Battery Engineer

Los Angeles, CA · On-site

$180K - $220K/yr

Mentor junior engineers as the engineering organization continues to grow. Required Qualifications ... Startup product development * R&D through production launches * SBIR or government-funded ...

Control Engineer

San Diego, CA · On-site

$88K - $114K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

You should be comfortable leading or supporting technical teams, mentoring junior engineers, and traveling to customer sites for startup and troubleshooting activities. Reasons you will be excited to ...

Control Engineer

San Diego, CA · On-site

$88K - $114K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

You should be comfortable leading or supporting technical teams, mentoring junior engineers, and traveling to customer sites for startup and troubleshooting activities. Reasons you will be excited to ...

Senior Power Electronics Engineer II

El Segundo, CA

$114K - $141K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

If you enjoy working in a startup environment and are passionate about developing leading-edge ... Mentor junior engineers to build technical understanding and foster professional development of ...

Senior Power Electronics Engineer II

El Segundo, CA · On-site

$114K - $141K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

If you enjoy working in a startup environment and are passionate about developing leading-edge ... Mentor junior engineers to build technical understanding and foster professional development of ...

Showing results 21-40

Junior Developer Startup information

See California salary details

$23.7K

$87.8K

$135.7K

How much do junior developer startup jobs pay per year?

As of Aug 15, 2026, the average yearly pay for junior developer startup 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 is a junior developer startup?

A Junior Developer Startup job involves working as an entry-level software developer in a fast-paced startup environment. You'll likely assist in coding, debugging, and testing software while collaborating with a small team. Startups often require developers to be adaptable, learn quickly, and take on various responsibilities beyond coding. This role provides great exposure to modern technologies and agile development practices. It’s a valuable opportunity to grow your skills and gain hands-on experience in a dynamic setting.

What are the key skills and qualifications needed to thrive in the junior developer startup position, and why are they important?

To thrive as a Junior Developer at a startup, you need foundational knowledge of programming languages (such as JavaScript, Python, or Ruby), basic understanding of web development, and a degree in computer science or related experience. Familiarity with source control systems like Git, cloud services, and popular frameworks is important, and participation in coding bootcamps or relevant certifications is a plus. Strong problem-solving, adaptability, and effective communication are key soft skills for collaborating in a dynamic, fast-paced environment. These abilities help junior developers quickly learn, contribute to product development, and grow within the rapidly evolving startup landscape.

What are some common challenges a junior developer may face when working at a startup?

Junior Developers in startup environments often encounter rapid changes in project direction, shifting priorities, and the need to learn new technologies quickly. Unlike more established companies, startups may have less formalized onboarding and training, requiring you to take initiative and learn on the go. You'll likely collaborate closely with small, cross-functional teams, which means communication skills and flexibility are essential. Embracing these challenges can accelerate your growth, expand your technical skill set, and offer opportunities to make a direct, visible impact on the company's products.

What are the most commonly searched types of Developer Startup jobs in California?

The most popular types of Developer Startup jobs in California are:

What job categories do people searching Junior Developer Startup jobs in California look for?

The top searched job categories for Junior Developer Startup jobs in California are:

What cities in California are hiring for Junior Developer Startup jobs?

Cities in California with the most Junior Developer Startup job openings:

Infographic showing various Junior Developer Startup job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 86% In-person, 5% Hybrid, and 9% Remote job distribution, with an average salary of $87,810 per year, or $42.2 per hour.

Senior Electical Engineer (POWER)

Luxus

Walnut Creek, CA • Hybrid

$119K - $155K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 14 days ago


Job description

Senior Electrical Engineer (Power)

Location: Portland 

Company: Carollo Engineers - Represented by Luxus
Position Type: Hybrid

Company Overview

Carollo Engineers is an internationally recognized environmental engineering firm specializing in the planning, design, and construction of water and wastewater facilities. Known for technical excellence and a collaborative culture, Carollo is dedicated to delivering sustainable infrastructure solutions that support communities nationwide.

Role Overview

Carollo Engineers is seeking a Senior Electrical Engineer (Power) to join its Portland team. This role is ideal for a licensed Professional Engineer with 6–15 years of experience in consulting engineering and a strong background in electrical power systems design.

This position will lead field investigations, electrical system design, and construction support activities for water and wastewater treatment facilities. The ideal candidate will bring deep technical expertise in power engineering, mentor junior engineers, and contribute meaningfully to complex infrastructure projects.

Key Responsibilities

Power Systems Design
  • Perform detailed electrical power systems design for water and wastewater treatment facilities.

  • Conduct load calculations, short circuit analysis, voltage drop calculations, harmonic distortion analysis, and power factor corrections.

  • Design motor control centers (MCCs), switchgear, and conduit routing systems.

  • Develop technical specifications and construction documentation.

Field & Construction Support
  • Lead and participate in field investigations and startup/commissioning activities.

  • Provide construction-phase engineering support and technical review.

  • Ensure compliance with NEC, NFPA 820, NESC, and applicable industry standards.

Leadership & Collaboration
  • Mentor and guide junior electrical engineers.

  • Coordinate with multidisciplinary teams across water and wastewater infrastructure projects.

  • Interface directly with clients and stakeholders in a professional and collaborative manner.

Required Qualifications

  • Bachelor’s degree in Electrical Engineering.

  • PE (Professional Engineer) registration required.

  • 6–15 years of experience in electrical engineering, preferably in consulting.

  • Strong knowledge of power system analysis including short circuit current, voltage drop, harmonics, and power factor.

  • Experience with NEC, NFPA 820, NESC, and IEEE Color Book standards.

  • Field investigation and startup/commissioning experience.

  • Proficiency in Microsoft Word and Excel.

  • Excellent written and verbal communication skills.

  • Self-motivated with strong client-facing capabilities.

Preferred Qualifications

  • Master’s degree in Electrical Engineering.

  • Experience specifically within water and wastewater treatment facility design.

Compensation & Benefits

Carollo offers a competitive and comprehensive benefits package including:

  • Medical, dental, and vision insurance

  • Paid time off and holidays

  • 401(k) with company match

  • Tuition reimbursement

  • Professional registration and career advancement bonuses

  • Employee referral bonuses

  • Disability and life insurance

  • Pre-tax healthcare and dependent care savings options

  • Flexible work arrangements (where applicable)

  • Caregiver support, travel assistance, and counseling services

  • $100K - $145K (depending on experience)