Full Time Full Stack Software Developer Jobs in California

ABOUT US
At PARTNER, success starts with the right mindset: connection, compassion, and curiosity. Whether consulting with clients or collaborating with colleagues, these principles guide how we work. We deliver engineering, environmental, and energy consulting, plus design services across the Americas, Europe, and beyond. As a leader in Commercial Real Estate (CRE), we're 1,600+ professionals strong in 40+ offices. Our mission is simple: create the best home for talented professionals. If you value delivering exceptional experiences through problem-solving, coordination, and a mindset of care for clients and colleagues, you'll feel right at home. That approach has earned us recognition on ENR's Top 500 Design Firms, Inc. 5000's Fastest-Growing Companies, and Zweig's Best Firms to Work For. Here, your ideas matter, your impact is real, and your work helps shape the future. Check out this role and join our team of talented professionals.
Learn more about Partner at www.partneresi.com
SUMMARY
Partner Engineering and Science, Inc. is seeking an experienced Full-Stack Software Engineer to join our innovative Products Team. This role combines hands-on development, technical collaboration, and problem-solving across a range of software initiatives. As a Full-Stack Software Engineer, you will contribute to the development of high-quality, scalable software applications while working in a collaborative team environment. You will help modernize our systems and implement new solutions aligned with business goals. We use AI agentic-assisted development and are continually improving our processes to empower developers to be the most productive.
The ideal candidate has a solid software engineering background, experience with Ruby on Rails (or similar frameworks), VueJS (or React), and experience working with cloud-hosted environments, especially AWS. You should also bring a collaborative mindset, sound technical judgment, and a desire to build high-quality software and improve engineering processes.
We are especially interested in candidates who have experience building or integrating AI-powered product features in production environments, including working with LLM-based workflows, prompt-driven application logic, evaluation approaches, and operational considerations such as reliability, observability, and cost.
Responsibilities and Duties

• Software Development: Contribute to the design, development, testing, and deployment of software applications. Support both front-end and back-end development efforts as needed.

• Technical Collaboration: Work closely with other developers through code reviews, technical discussions, and collaborative problem-solving. Participate in architecture and design sessions and partner with product management and design teams throughout the development process.

• System Modernization: Maintain and help modernize existing systems to improve scalability, reliability, and performance. Assist in implementing new features, system enhancements, and platform improvements.

• Cross-Functional Partnership: Collaborate with product managers, designers, QA, and other stakeholders to ensure shared understanding of requirements, priorities, and project goals.

• Engineering Practices: Apply team best practices for coding, testing, and deployment. Contribute to continuous improvement efforts, including CI/CD workflows, automation, and AI-assisted development practices that improve efficiency and quality.

• Technical Growth: Contribute to discussions on engineering approaches, tools, and implementation strategies while continuing to expand technical expertise.

Required Qualifications

• Experience: 3+ years of software development experience building and maintaining web applications.

• Education: Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.

• Technical Skills:

• Strong software development skills with experience building and maintaining production applications.

• Experience with Ruby on Rails or similar web application frameworks.

• Experience with JavaScript front-end frameworks such as Vue.js or React.

• Experience working with cloud-hosted environments, particularly AWS.

• Proficiency with source control systems such as GitHub.

• Familiarity with CI/CD pipelines and related development workflows.

• Familiarity with application monitoring and debugging tools such as New Relic.

Preferred Qualifications

• Experience building or integrating production software features that use LLMs or other AI services, with an understanding of practical concerns such as prompt design, evaluation, latency, failure handling, and cost.

• Experience with Python for application development, scripting, automation, integrations, or AI-related workflows.

• Familiarity with Agile development methodologies and practices.

• Familiarity with testing frameworks and debugging tools.

• Experience using AI-assisted development tools to improve productivity, debugging, or software delivery workflows.

Soft Skills

• Strong problem-solving and analytical skills.

• Effective communication and collaboration skills, with the ability to work cross-functionally.

• A proactive, team-oriented approach to solving technical challenges.

• A passion for learning, continuous improvement, and building high-quality software.

Compensation:
Salary range: $110,000 to $130,000. This is what we reasonably expect to pay for the role
The pay scale for this role considers a wide range of factors when making compensation decisions including, but not limited to, skill sets, experience and training, licensure and certifications, and other business and organizational needs. Please note, the disclosed pay scale estimate has not been adjusted for the applicable geographic location where the position may be filled.
You may also be eligible to participate in a discretionary incentive bonus program which is dependent on various factors, including, but not limited to individual and organizational performance.
Benefits:
Competitive benefits package including health insurance, dental insurance, vision insurance, vacation and sick time, and a 401(k) plan with a company match.
Equal Employment Opportunity
It is Partner Engineering and Science, Inc's (The Company) policy is to provide equal employment opportunity for all applicants and employees. The company maintains a work environment that is free of harassment, discrimination, or retaliation based on an individual's race (including, but not limited to, hair texture and protective hairstyles such as braids, locks, and twists), color, religion, religious creed (including religious dress and grooming practices), national origin, ancestry, citizenship, physical or mental disability, medical condition (including cancer and genetic characteristics), genetic information, marital status, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender (including gender identity and gender expression), age (40 years and over), sexual orientation, veteran and/or military status, protected medical leaves (requesting or approved for leave under the Family and Medical Leave Act or the California Family Rights Act), reproductive health decision making, domestic violence victim status, political affiliation, or any other status protected by federal, state, or local laws.
We will consider qualified applicants who have criminal histories in a manner consistent with the law.
California Consumer Privacy Act
We collect personal information from you in connection with your application for employment with Partner Engineering and Science, Inc. For details on what personal information we collect and the purposes for which we collect it, please visit:
https://www.partneresi.com/careers/california-consumer-privacy-act/
Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.