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Sr Software Jobs in California (NOW HIRING)

ETAP Software

Senior Software Engineer

Irvine, CA · On-site

$129K - $171K/yr

They are seeking a Senior Software Engineer to maintain and enhance software that supports state estimation and virtual metering for complex electrical networks, as well as develop REST APIs and ...

Xoriant Corporation

Sr. Software Engineer - SOC

San Jose, CA · On-site

$143K - $189K/yr

Job Title: Sr. Software Engineer - SOC (318578) Job Location: San Jose, CA (100% remote for now but need to be onsite as soon as campus opens) Duration: 6+ months contract Client: Samsung Description:

Career Launch

Senior Software Engineer

San Francisco, CA · On-site

$150 - $230/hr

Senior Software Engineer As a Senior Software Engineer, you may work on projects that require strong execution, communication, analytical judgment, and the ability to move quickly in ambiguous ...

New

Prosum Inc.

Senior Software Engineer

Temecula, CA · On-site

$150K - $175K/yr

Senior Software Engineer / Technical Leader (Individual Contributor) Core Technologies: C/C++, Cryptography, Python, Linux/POSIX, Systems Programming Focus Areas: Secure software, cryptographic ...

JRD Systems

Senior Software Engineer

Downey, CA · On-site

$126K - $166K/yr

The Sr. Software Engineer will lead application support for multiple applications, project management for stakeholders and managers, and work cohesively within multiple teams. The Sr. Software ...

The Bronx

Senior Software Engineer

San Francisco, CA · On-site

$225 - $250/hr

As a Senior Software Engineer, you'll collaborate closely with founders and an experienced engineering team to build scalable applications, AI-powered workflows, and customer-facing features that ...

New

Bulkhire

Senior AI SDE III -- GenAI & ML Platform

San Jose, CA · On-site

$143K - $189K/yr

Senior Software Development Engineer, Advertising Technology Austin Domain 11 - HomeAway onsite Jul 7, 2026 Washington - Seattle Campus onsite Jul 7, 2026 * Software Development Engineer II - Full ...

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Sr Software information

What are the key skills and qualifications needed to thrive as a senior software engineer?

To thrive as a Senior Software Engineer, you need strong proficiency in programming languages (such as Java, Python, or C#), software architecture, and a bachelor’s degree in computer science or a related field. Expertise with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is commonly required, along with certifications like AWS Certified Solutions Architect. Leadership, problem-solving, and effective communication skills help you mentor junior engineers and collaborate across teams. These skills ensure the delivery of robust, scalable solutions and foster innovation within complex technical environments.

What is the difference between Sr Software and Software Developer?

AspectSr SoftwareSoftware Developer
Required CredentialsBachelor's degree in CS or related field; 3+ years experience; sometimes certificationsBachelor's degree in CS or related field; 0-3 years experience; certifications optional
Work EnvironmentOften leads projects, mentors juniors, involved in architecture decisionsFocuses on coding, debugging, and implementing features under guidance
Employer & Industry UsageUsed across tech companies, startups, and enterprise firms for senior rolesCommon entry to mid-level role in software development teams

The main difference between a Sr Software and a Software Developer lies in experience, responsibilities, and leadership. Sr Software professionals typically have more experience, take on leadership roles, and influence project architecture, while Software Developers focus on coding and implementing features. Both roles require a strong foundation in programming, but the Sr Software position involves greater oversight and strategic input.

What does a senior software engineer do?

A Sr Software Engineer is responsible for designing, developing, and maintaining complex software applications. They often lead technical projects, mentor junior team members, and collaborate closely with stakeholders to ensure software meets business objectives. Their role typically involves writing high-quality code, reviewing code from peers, and making architectural decisions. Sr Software Engineers are also expected to stay updated with industry trends and best practices to improve software performance and reliability.

What are some common challenges faced by senior software engineers when leading project teams, and how can they effectively overcome them?

Senior Software Engineers often encounter challenges such as balancing hands-on coding with mentoring less experienced team members, managing project timelines, and ensuring code quality across the team. Effective communication and proactive planning are key to overcoming these hurdles. By fostering a collaborative environment, setting clear expectations, and leveraging agile methodologies, Senior Software Engineers can guide their teams to successful project delivery while supporting professional growth within the team.
What cities in California are hiring for Sr Software jobs? Cities in California with the most Sr Software job openings:
Sr Software jobs near you
Infographic showing various Sr Software job openings in California as of August 2026, with employment types broken down into 88% Full Time, 8% Part Time, and 4% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution.

Senior Software Engineer

ETAP Software

Irvine, CA • On-site

$129K - $171K/yr

Full-time

Re-posted 24 days ago

Job description

Job Summary:
ETAP Software empowers customers to make informed decisions throughout the life cycle of their projects with innovative software solutions for electrical systems. They are seeking a Senior Software Engineer to maintain and enhance software that supports state estimation and virtual metering for complex electrical networks, as well as develop REST APIs and collaborate with real-time software engineers.
Responsibilities:
• Implement and maintain system engines used for electrical state estimation.
• Design, develop, and maintain REST APIs for internal applications and services.
• Collaborate with real‑time software engineers to support and improve existing web applications.
• Develop REST APIs for cloud‑based companion applications.
• Ensure all software components meet cybersecurity and compliance requirements.
Qualifications:
Required:
• Bachelor of Science in Computer Science, Computer Engineering, or related field
• 5+ years of professional software development experience
• Experience using Microsoft Visual Studio
• Proficiency in: FORTRAN, C++, C#
Preferred:
• Experience developing software for electrical systems
• Strong understanding of linear algebra
Company:
Optimize, simulate, and control electrical systems with confidence across utilities, infrastructure, manufacturing, and building sectors. Founded in 1986, the company is headquartered in Irvine, USA, with a team of 1001-5000 employees. The company is currently Late Stage.

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