Software Test Engineer Remote Jobs in Fullerton, CA

Who We Are
Join a team that puts its People First! As a member of the First American family of companies, First American Trust is a federal savings bank that has provided banking, wealth management, and trust solutions on a national, full-service basis for more than five decades. Since 1889, First American (NYSE: FAF) has held an unwavering belief in its people. They are passionate about what they do, and we are equally passionate about fostering an environment where all feel welcome, supported, and empowered to be innovative and reach their full potential. Our inclusive, people-first culture has earned our company numerous accolades, including being named to the Fortune 100 Best Companies to Work For® list for eleven consecutive years. We have also earned awards as a best place to work for women, diversity and LGBTQ+ employees, and have been included on more than 50 regional best places to work lists. First American will always strive to be a great place to work, for all. For more information, please visit www.careers.firstam.com.
What We Do
We are seeking a highly skilled Full Stack Senior Software Engineer to design and implement secure, scalable, cloud-native software solutions that power next-generation financial applications. In this role, you will contribute hands-on development while supporting architecture and design decisions across modern web applications, APIs, and distributed services.
If you are passionate about exploring new technologies and have a demonstrated track record of delivering innovative features and products, we would like to hear from you. You will collaborate with cross-functional teams, including Product, Architecture, UX, DevOps, and Security, to design, develop, and integrate AI-enabled capabilities such as intelligent automation, LLM-powered services, RAG-based solutions, and API-driven AI integrations. You will help translate emerging ideas into reliable, production-ready systems that deliver measurable business value.
This position offers the opportunity to work with a talented team while operating autonomously with minimal supervision. A strong background in modern software development, cloud platforms, and agile methodologies is essential. Experience building, integrating, or operating AI-powered applications, and using AI-assisted development tools to improve delivery, is highly valued.
What You'll Do:

• Design, develop, test, deploy, and maintain secure, scalable applications in an Azure cloud environment.
• Build full-stack solutions using Python, React, JavaScript/TypeScript, REST APIs, and microservice architectures.
• Modify and enhance existing applications; contribute to product delivery through coding and pull request reviews.
• Design, develop, and integrate AI-powered capabilities, including LLM integrations, RAG, agentic workflows, and intelligent automation, using platforms such as Azure OpenAI.
• Implement and maintain AI orchestration and inference pipelines, ensuring performance, cost efficiency, observability, and responsible usage.
• Apply software engineering best practices (testing, monitoring, CI/CD, observability, secure SDLC) to production systems, including AI-driven applications.
• Evaluate and prototype emerging AI tools and frameworks; leverage AI-assisted development tools to accelerate design, coding, testing, and code review.
• Ensure data privacy, security, governance, and compliance when building and deploying AI-enabled functionality.
• Independently define and prioritize goals and tasks in a fast-paced agile product environment with small, focused teams.
• Collaborate with Solution Architects and stakeholders to align on design plans, troubleshoot production issues, and drive durable solutions.
• Mentor engineers on software engineering best practices, cloud-native architecture, and AI integration patterns.
• Propose solutions to complex problems, build consensus among the team, and influence technical direction.

What You'll Bring:

• 5+ years of software development experience using Python and building cloud-native applications in Azure (AWS experience also considered).
• Bachelor's degree in Computer Science or equivalent combination of education and experience.
• Experience developing modern web applications with React and JavaScript/TypeScript.
• Strong understanding of object-oriented programming, software design patterns, and application architecture.
• Experience designing and consuming REST APIs.
• Experience working with relational databases (PostgreSQL, SQL Server, MySQL).
• Experience conducting code reviews and mentoring other engineers.
• Experience working in Agile development environments.
• Familiarity with CI/CD, DevOps, and modern software development best practices.
• Experience integrating AI capabilities into applications, including Azure OpenAI, LLMs, RAG, or vector databases.
• Experience with Docker and Kubernetes preferred.
• Excellent communication skills and ability to collaborate across technical and business teams.
• Familiar with Ruby on Rails or willing to learn it.
• Experience with event-driven architecture and messaging platforms.
• Experience with application observability leveraging OpenTelemetry.

TECHNOLOGY: Python, Azure (App Services, Functions, Azure OpenAI, AI Services), React, JavaScript/TypeScript, REST API, Relational Databases (PostgreSQL, MySQL, SQL Server), NoSQL Databases (MongoDB, Cosmos DB), LLMs, RAG, AI APIs.
DEVELOPMENT TOOLS: Docker, Kubernetes, Linux, Windows, Azure, Git, GitLab, GitHub, Azure DevOps, NPM Package Management, CI/CD Pipelines.
Pay Range: $129,300.00 - $172,300.00 Annually
This hiring range is a reasonable estimate of the base pay range for this position at the time of posting. Pay is based on a number of factors which may include job-related knowledge, skills, experience, business requirements and geographic location.
** Note that the following statements only apply to candidates who will be working from an unincorporated area within Los Angeles County. **
First American will consider for employment all qualified applicants, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws (e.g., the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act).
First American intends to conduct a review of an applicant's criminal history in connection with a conditional offer. First American reasonably believes that a criminal history may have a direct, adverse and negative relationship with the following material job duties for this position potentially resulting in the withdrawal of the conditional offer of employment: handling of confidential, proprietary or trade secret information belonging to First American or its customers, administrating or facilitating financial transactions, and the ability to meet customer-imposed criminal history requirements.
What We Offer
By choice, we don't simply accept individuality - we embrace it, we support it, and we thrive on it! Our People First culture is inclusive for all employees - not just because it's the right thing to do, but because it's the key to our success. We are proud to foster an authentic and inclusive workplace For All. You are free and encouraged to bring your entire, unique self to work. First American is an equal opportunity employer in every sense of the term.
Based on eligibility, First American offers a comprehensive benefits package including medical, dental, vision, 401k, PTO/paid sick leave and other great benefits like an employee stock purchase plan.