Explore 4 backend python developer jobs from 2 hiring companies in Angwin, CA, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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Backend Python Developer Jobs

Keysight Technologies

Liberate

Hybrid

Onsite

<h2>About Us:</h2>
Liberate builds AI agents to automate manual tasks for the $2.7T insurance industry. We started with voice — the hardest and most valuable channel in insurance — and are now expanding into full workflow automation across sales, servicing, and claims. Our long-term vision is to build reasoning agents capable of handling the entire spectrum of insurance carrier and broker operations. We've raised $72M to date, including a $50M Series B in October 2025, backed by top-tier venture firms.
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Location: Boston or San Francisco (Berkeley), hybrid (2 days/week in office)
<h3>About the Role</h3>
As a Staff AI Agent Engineer, you are a force multiplier for customer deployments and agent quality. You own complex customer launches end to end and turn hard, bespoke problems into repeatable patterns. You operate with strong judgment, raise the engineering bar in the work, and reduce dependency on leadership by owning outcomes directly.
This role is hands-on, customer-facing, and deeply technical. You are not a solutions engineer. You are an engineer who ships.
<h3>What You’ll Do</h3>
<ul>
<li>Own complex, high-impact agent deployments from design through production</li>
<li>Design, build, and iterate on agent workflows, prompts, evals, and integrations</li>
<li>Turn customer-specific learnings into reusable templates, playbooks, and patterns</li>
<li>Partner with Product and Platform to influence roadmap based on real-world usage</li>
<li>Debug and improve agent behavior using structured evals, monitoring, and analysis</li>
<li>Lead technical reviews for agent design, launch readiness, and post-launch quality</li>
<li>Mentor other Agent Engineers through example and direct coaching</li>
<li>Raise the bar on engineering quality, operational rigor, and reuse in deployments</li>
</ul>
<h3>What We’re Looking For</h3>
Must Have
<ul>
<li>6+ years of professional software engineering experience</li>
<li>Strong hands-on experience building and operating production systems</li>
<li>Fluency in Python and modern backend systems (APIs, services, cloud)</li>
<li>Experience working with LLM-based systems, prompts, tools, or agent frameworks</li>
<li>Ability to reason about quality, failure modes, and operational risk</li>
<li>Comfort working directly with customers on technically complex problems</li>
<li>High ownership, good judgment, and the ability to operate under pressure</li>
</ul>
Nice to Have
<ul>
<li>Experience with agentic systems, eval frameworks, or AI observability</li>
<li>Prior work in B2B SaaS, enterprise software, or regulated environments</li>
<li>Experience turning bespoke solutions into reusable systems</li>
</ul>

Staff AI Agent Engineer

6+ years software engineering; Python; backend; LLMs; customer-facing; strong ownership.

6+ years software engineering; hands-on production systems; Python and backend/cloud; experience with LLM-based systems; customer-facing; strong ownership.

Overview:
<a href="https://www.keysight.com/us/en/about.html" target="_blank" style="color: #e90029;" rel="noopener">Keysight</a> is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn more <a href="https://www.youtube.com/watch?v=ykxkSz5DlPo&t=16s" target="_blank" style="color: #e90029;" rel="noopener">about what we do.</a> Our <a href="https://jobs.keysight.com/awards" target="_blank" rel="noopener">award-winning</a> culture embraces a bold vision of where technology can take us and a passion for tackling challenging problems with industry-first solutions. We believe that when people feel a sense of belonging, they can be more creative, innovative, and thrive at all points in their careers. We are seeking a Senior Full-Stack Software Engineer – AI Applications to design and build end-to-end AI-enabled applications, from user experience to backend services. This role focuses on application architecture, usability, security, and workflow orchestration, enabling users to leverage AI capabilities that integrate with Keysight hardware, software, and services. This is a product-focused software engineering role centered on building scalable, production-ready AI applications and components. 

Responsibilities:
<ul><li data-start="1273" data-end="1387">Design and implement end-to-end AI-based applications, including frontend user interfaces and backend services</li><li data-start="1388" data-end="1572">Build applications that integrate AI workflows with Keysight hardware, software, and services, including design software, calibration software, emulation tools, and cloud platforms</li><li data-start="1730" data-end="1845">Design, implement, and maintain backend APIs and services that orchestrate AI workflows and system integrations</li><li data-start="1846" data-end="1959">Collaborate closely with AI/ML engineers, product managers, and domain experts across multiple business units</li><li data-start="1960" data-end="2072">Translate complex technical capabilities into usable, scalable, and production-ready application experiences</li><li data-start="2073" data-end="2159">Ensure high standards for usability, reliability, performance, and maintainability</li><li data-start="2160" data-end="2283">Contribute to application-level architecture decisions and help define UX and workflow patterns for AI-enabled products</li></ul>

Qualifications:
<ul><li data-start="1178" data-end="1290">Design and implement end-to-end AI-based applications, including frontend user interfaces and backend services</li><li data-start="1291" data-end="1475">Build applications that integrate AI workflows with Keysight hardware, software, and services, including design and calibration software, emulation tools, and AI platforms</li><li data-start="1476" data-end="1632">Develop intuitive user experiences for AI workflows such as data management, model training and fine-tuning, inference, optimization, and explainability</li><li data-start="1633" data-end="1748">Design, implement, and maintain backend APIs and services that orchestrate AI workflows and system integrations</li><li data-start="1749" data-end="1869">Build and maintain CI/CD pipelines to support reliable development, testing, and deployment of AI-based applications</li><li data-start="1870" data-end="2068">Ensure applications follow secure software development practices (e.g., secure SDLC / SSDF), including authentication, authorization, and proper use of encryption for data in transit and at rest</li><li data-start="2069" data-end="2174">Collaborate closely with AI/ML, AI platform, domain, and product teams across multiple business units</li><li data-start="2175" data-end="2287">Translate complex technical capabilities into usable, scalable, and production-ready application experiences</li><li data-start="2288" data-end="2374">Ensure high standards for usability, reliability, performance, and maintainability</li><li data-start="2375" data-end="2486">Contribute to application-level architecture decisions and help define patterns for scalable AI experiences</li><li data-start="2531" data-end="2617">Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field</li><li data-start="2618" data-end="2694">5+ years of experience building production-grade full-stack applications</li><li data-start="2695" data-end="2816">Strong experience with modern frontend frameworks (React preferred) and designing user interfaces for technical users</li><li data-start="2817" data-end="2917">Backend development experience using Python and/or Node.js, including building scalable services</li><li data-start="2918" data-end="3004">Experience designing and consuming RESTful APIs and service-oriented architectures</li><li data-start="3005" data-end="3106">Experience building data-driven applications that ingest, process, and visualize complex data</li><li data-start="3107" data-end="3217">Experience with CI/CD practices to support build, test, and deployment of production software applications</li><li data-start="3218" data-end="3363">Experience applying secure software development practices (e.g., secure SDLC / SSDF), including authentication, authorization, and encryption</li><li data-start="3364" data-end="3487">Strong software engineering fundamentals, including data structures, debugging, testing, and performance considerations</li><li data-start="3488" data-end="3590">Experience working in production codebases and collaborating in cross-functional engineering teams</li><li data-start="3591" data-end="3693">Ability to translate complex technical workflows into intuitive and usable application experiences</li></ul> <a style="color: #ff0000;" href="https://about.keysight.com/en/jobs/careers_privacy_statement.pdf" target="_blank" rel="noopener">Careers Privacy Statement</a> Keysight Technologies Inc. is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability or any other protected categories under all applicable laws. Pay is based on experience, education and skills, most offers will be between the minimum and the midpoint of the Salary Range listed below.Colorado pay range: MIN $119,850 - MAX $199,750California pay range: MIN $129,450 - MAX 215,740 Note: For other locations, pay ranges will vary by region This role is eligible for Keysight Results Bonus Program US Employees may be eligible for the following benefits:<ul><li style="margin: 0in 0in 0in 1in;">Medical, dental and vision</li><li style="margin: 0in 0in 0in 1in;">Health Savings Account</li><li style="margin: 0in 0in 0in 1in;">Health Care and Dependent Care Flexible Spending Accounts</li><li style="margin: 0in 0in 0in 1in;">Life, Accident, Disability insurance</li><li style="margin: 0in 0in 0in 1in;">Business Travel Accident and Business Travel Health</li><li style="margin: 0in 0in 0in 1in;">401(k) Plan</li><li style="margin: 0in 0in 0in 1in;">Flexible Time Off, Paid Holidays</li><li style="margin: 0in 0in 0in 1in;">Paid Family Leave</li><li style="margin: 0in 0in 0in 1in;">Discounts, Perks</li><li style="margin: 0in 0in 0in 1in;">Tuition Reimbursement</li><li style="margin: 0in 0in 0in 1in;">Adoption Assistance</li><li style="margin: 0in 0in 0in 1in;">ESPP (Employee Stock Purchase Plan)</li></ul>

Senior Full-Stack Software Engineer – AI Applications

Senior Full-Stack Software Engineer

Design and build end-to-end AI applications; develop frontend and backend; integrate AI workflows with hardware/software; ensure scalable, secure, production-ready systems.

Overview <a href="https://www.keysight.com/us/en/about.html" target="_blank" style="color: #e90029;" rel="noopener">Keysight</a> is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn more <a href="https://www.youtube.com/watch?v=ykxkSz5DlPo&t=16s" target="_blank" style="color: #e90029;" rel="noopener">about what we do.</a> Our <a href="https://jobs.keysight.com/awards" target="_blank" rel="noopener">award-winning</a> culture embraces a bold vision of where technology can take us and a passion for tackling challenging problems with industry-first solutions. We believe that when people feel a sense of belonging, they can be more creative, innovative, and thrive at all points in their careers. We are seeking a Senior Full-Stack Software Engineer – AI Applications to design and build end-to-end AI-enabled applications, from user experience to backend services. This role focuses on application architecture, usability, security, and workflow orchestration, enabling users to leverage AI capabilities that integrate with Keysight hardware, software, and services. This is a product-focused software engineering role centered on building scalable, production-ready AI applications and components.  Responsibilities <ul><li data-start="1273" data-end="1387">Design and implement end-to-end AI-based applications, including frontend user interfaces and backend services</li><li data-start="1388" data-end="1572">Build applications that integrate AI workflows with Keysight hardware, software, and services, including design software, calibration software, emulation tools, and cloud platforms</li><li data-start="1730" data-end="1845">Design, implement, and maintain backend APIs and services that orchestrate AI workflows and system integrations</li><li data-start="1846" data-end="1959">Collaborate closely with AI/ML engineers, product managers, and domain experts across multiple business units</li><li data-start="1960" data-end="2072">Translate complex technical capabilities into usable, scalable, and production-ready application experiences</li><li data-start="2073" data-end="2159">Ensure high standards for usability, reliability, performance, and maintainability</li><li data-start="2160" data-end="2283">Contribute to application-level architecture decisions and help define UX and workflow patterns for AI-enabled products</li></ul> Qualifications <ul><li data-start="1178" data-end="1290">Design and implement end-to-end AI-based applications, including frontend user interfaces and backend services</li><li data-start="1291" data-end="1475">Build applications that integrate AI workflows with Keysight hardware, software, and services, including design and calibration software, emulation tools, and AI platforms</li><li data-start="1476" data-end="1632">Develop intuitive user experiences for AI workflows such as data management, model training and fine-tuning, inference, optimization, and explainability</li><li data-start="1633" data-end="1748">Design, implement, and maintain backend APIs and services that orchestrate AI workflows and system integrations</li><li data-start="1749" data-end="1869">Build and maintain CI/CD pipelines to support reliable development, testing, and deployment of AI-based applications</li><li data-start="1870" data-end="2068">Ensure applications follow secure software development practices (e.g., secure SDLC / SSDF), including authentication, authorization, and proper use of encryption for data in transit and at rest</li><li data-start="2069" data-end="2174">Collaborate closely with AI/ML, AI platform, domain, and product teams across multiple business units</li><li data-start="2175" data-end="2287">Translate complex technical capabilities into usable, scalable, and production-ready application experiences</li><li data-start="2288" data-end="2374">Ensure high standards for usability, reliability, performance, and maintainability</li><li data-start="2375" data-end="2486">Contribute to application-level architecture decisions and help define patterns for scalable AI experiences</li><li data-start="2531" data-end="2617">Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field</li><li data-start="2618" data-end="2694">5+ years of experience building production-grade full-stack applications</li><li data-start="2695" data-end="2816">Strong experience with modern frontend frameworks (React preferred) and designing user interfaces for technical users</li><li data-start="2817" data-end="2917">Backend development experience using Python and/or Node.js, including building scalable services</li><li data-start="2918" data-end="3004">Experience designing and consuming RESTful APIs and service-oriented architectures</li><li data-start="3005" data-end="3106">Experience building data-driven applications that ingest, process, and visualize complex data</li><li data-start="3107" data-end="3217">Experience with CI/CD practices to support build, test, and deployment of production software applications</li><li data-start="3218" data-end="3363">Experience applying secure software development practices (e.g., secure SDLC / SSDF), including authentication, authorization, and encryption</li><li data-start="3364" data-end="3487">Strong software engineering fundamentals, including data structures, debugging, testing, and performance considerations</li><li data-start="3488" data-end="3590">Experience working in production codebases and collaborating in cross-functional engineering teams</li><li data-start="3591" data-end="3693">Ability to translate complex technical workflows into intuitive and usable application experiences</li></ul> <a style="color: #ff0000;" href="https://about.keysight.com/en/jobs/careers_privacy_statement.pdf" target="_blank" rel="noopener">Careers Privacy Statement</a> Keysight Technologies Inc. is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability or any other protected categories under all applicable laws. Pay is based on experience, education and skills, most offers will be between the minimum and the midpoint of the Salary Range listed below.Colorado pay range: MIN $119,850 - MAX $199,750California pay range: MIN $129,450 - MAX 215,740 Note: For other locations, pay ranges will vary by region This role is eligible for Keysight Results Bonus Program US Employees may be eligible for the following benefits:<ul><li style="margin: 0in 0in 0in 1in;">Medical, dental and vision</li><li style="margin: 0in 0in 0in 1in;">Health Savings Account</li><li style="margin: 0in 0in 0in 1in;">Health Care and Dependent Care Flexible Spending Accounts</li><li style="margin: 0in 0in 0in 1in;">Life, Accident, Disability insurance</li><li style="margin: 0in 0in 0in 1in;">Business Travel Accident and Business Travel Health</li><li style="margin: 0in 0in 0in 1in;">401(k) Plan</li><li style="margin: 0in 0in 0in 1in;">Flexible Time Off, Paid Holidays</li><li style="margin: 0in 0in 0in 1in;">Paid Family Leave</li><li style="margin: 0in 0in 0in 1in;">Discounts, Perks</li><li style="margin: 0in 0in 0in 1in;">Tuition Reimbursement</li><li style="margin: 0in 0in 0in 1in;">Adoption Assistance</li><li style="margin: 0in 0in 0in 1in;">ESPP (Employee Stock Purchase Plan)</li></ul>

Design and implement end-to-end AI-based applications; build AI workflows; frontend and backend; secure SDLC; CI/CD; REST APIs; 5+ years full-stack; React; Python/Node.js.

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