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Full Stack Developer Startup Jobs in California (NOW HIRING)

Teserac, Inc.

Full Stack Developer

Sunnyvale, CA · On-site

Why You Would Be a Good Fit You are a full-stack engineer who takes pride in shipping features that ... Strong problem-solving skills and the ability to work independently in a fast-paced startup ...

Vianai Systems

Full Stack Developer

Palo Alto, CA · On-site +1

$110K - $160K/yr

As a full-stack developer, you would touch nearly every aspect of our business and work in cross ... We are a startup, and we are founded, funded, and led by veterans of the industry. We think and ...

Vianai Systems

Full Stack Developer

Palo Alto, CA

$110K - $160K/yr

As a full-stack developer, you would touch nearly every aspect of our business and work in cross ... We are a startup, and we are founded, funded, and led by veterans of the industry. We think and ...

KINETIQ

Full Stack Engineer

San Francisco, CA

$200K - $240K/yr

Build and maintain DevOps workflows to ensure reliable deployments. * Support new team members ... Prior startup experience. * Equity: 0.4-0.6% * Visa & Green Card sponsorship available Seniority ...

INSPYR Solutions

Full Stack Developer

Menlo Park, CA · On-site

$60 - $74/hr

Title: Full Stack Developer Location: Menlo Park, CA Duration: 12 months + Compensation: $60-74/hr Work Requirements: US Citizen, GC Holders or Authorized to Work in the U.S. Summary: The main ...

EyeUniversal LLC

Full Stack Developer

San Diego, CA · On-site

We are looking for an experienced and passionate Full Stack Developer to join the EyeUniversal team. The focus would be using well known languages such as PHP (using laravel.com framework , etc ...

INTELLISWIFT INC

Full stack developer

San Ramon, CA

Full Stack Developer Location: San Ramon, CA Duration: 6 Months Fullstack developer Front end : Java script, html, CSS, any JavaScript libraries Should be good in java Back end : Oracle Responsive ...

Skild AI

Full Stack Developer

San Mateo, CA · On-site

Position Overview We are seeking a Full Stack Developer to help build and maintain our cloud infrastructure and web applications. This role requires expertise in modern web technologies and a strong ...

Marlabs LLC

AI Full Stack Developer

San Jose, CA · On-site

AI Full Stack Developer Location: San Jose, CA - Onsite 3 days a week Duration: Fulltime JOB SUMMARY We are looking for a highly motivated AI Full Stack Developer to join our team to build, deploy ...

Internet Soft

Full Stack Developer

San Jose, CA · On-site

Full Stack Developer Responsibilities: * Frontend Development: Design and develop user-facing web applications using modern frontend languages like HTML, CSS, and JavaScript and frameworks like React ...

SoftSages Technology

Full Stack Developer

San Jose, CA · On-site

Company Description Full Stack Developer Requirements: MUST posses at least 7 years of development of web-based applications in both front and back-end roles. System architecture - Knowledge of how ...

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All JobsFull Stack Developer Startup JobsFull Stack Developer Startup Jobs in California

Full Stack Developer Startup information

What is the difference between Full Stack Developer Startup vs Front End Developer?

AspectFull Stack Developer StartupFront End Developer
Required SkillsProficiency in both front-end and back-end technologies, databases, and server managementSpecialized in client-side technologies like HTML, CSS, JavaScript, and frameworks like React or Angular
Work EnvironmentFast-paced startup setting, often wearing multiple hats, involved in full project lifecyclePrimarily focused on designing and implementing user interfaces and user experience
Common UsageUsed in startups needing versatile developers capable of handling entire applicationsUsed in teams focusing on UI/UX and front-end development within startups or larger companies

In summary, a Full Stack Developer Startup has a broader skill set covering both front-end and back-end development, suitable for dynamic startup environments. A Front End Developer specializes in creating engaging user interfaces, often working within larger teams or specific projects. The choice depends on the scope of work and technical expertise required.

What are popular job titles related to Full Stack Developer Startup jobs in California? For Full Stack Developer Startup jobs in California, the most frequently searched job titles are:
What job categories do people searching Full Stack Developer Startup jobs in California look for? The top searched job categories for Full Stack Developer Startup jobs in California are:
What cities in California are hiring for Full Stack Developer Startup jobs? Cities in California with the most Full Stack Developer Startup job openings:
Full Stack Developer Startup jobs near you
Infographic showing various Full Stack Developer Startup job openings in California as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Full Stack Developer

Teserac, Inc.

Sunnyvale, CA • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 18 days ago

Job description

About the Role
Teserac is building neuron™, a unified AI-native platform for data center observability, intelligence, and workflow automation. neuron™ processes real-time telemetry from thousands of sensors, meters, and control systems across heterogeneous data center environments - giving infrastructure owners and operators the visibility to monitor, analyze, automate, and proactively manage power operations with full situational awareness. An embedded AI teammate serves as every operator's always-on co-pilot: detecting anomalies, correlating events, and surfacing recommendations 24/7.
As a Full Stack Developer, you will build the features and interfaces that data center operators rely on to monitor, analyze, and act on real-time power and operational data. You will work across the entire stack - from real-time dashboards and alerting UIs to backend data pipelines and API integrations.
This is a high-impact role where your code ships to production quickly and directly affects how some of the world's most critical infrastructure is managed. You will work closely with the Principal Software & Architecture Lead, Product, and Solution Engineering in a fast-moving, small-team environment.
We move fast. We avoid bureaucracy. We expect engineers to own outcomes, not tickets.
Why You Would Be a Good Fit
You are a full-stack engineer who takes pride in shipping features that are fast, clean, and production-ready. You're comfortable in unfamiliar territory - whether that's a new protocol, an unfamiliar dataset, or a tight deadline - and you default to ownership rather than waiting for direction. You thrive in fast-moving environments where your work has direct, visible impact.
You likely:
  • Build front-to-back: you can wire a real-time dashboard from WebSocket to pixel without passing the baton.
  • Write clean, tested code and treat code reviews as a team learning opportunity.
  • Are comfortable with ambiguity - you can turn a rough product requirement into a well-scoped implementation plan.
  • Have worked with time-series or streaming data and understand the performance implications of large dataset rendering.
  • Learn quickly and enjoy working at the intersection of software, data, and physical systems.

Key Responsibilities
Front-End Development
  • Build and maintain front-end interfaces for neuron™: real-time dashboards, alerting systems, capacity planning views, and operational workflow UIs.
  • Build UI components and workflows for the AI teammate: interaction panels, recommendation displays, approval workflows, and audit trails.
  • Optimize application performance for real-time data rendering, large dataset visualization, and responsive user experiences across device types.

Back-End Development
  • Develop backend services and APIs that power data ingestion, normalization, and delivery of telemetry from diverse data center sources.
  • Implement integration modules for BMS, EPMS, and third-party monitoring systems using protocols including Modbus, BACnet, SNMP, and REST APIs.
  • Design and maintain RESTful APIs with clean contracts and well-documented schemas.

Engineering Quality & Process
  • Write clean, tested, and well-documented code; participate in code reviews and contribute to engineering best practices.
  • Contribute to CI/CD pipelines, automated testing, and deployment processes.
  • Collaborate with the Principal Architect and Product to refine requirements and deliver features within sprint cycles.
  • Troubleshoot production issues across the stack and participate in on-call rotations as the platform scales.

Why Teserac
Teserac is AI-native observability and workflow automation purpose-built for mission-critical physical infrastructure. We are not building incremental improvements to legacy tools. We are re-architecting how data centers see, understand, and act on their own operations.
  • Ship features that directly impact how some of the world's most critical AI infrastructure is powered and managed.
  • Small engineering team where every developer has outsized impact and direct visibility into product decisions.
  • Work at the intersection of AI, real-time systems, and physical infrastructure - a rare and technically compelling combination.
  • Competitive compensation with meaningful equity upside; grow with the company from Series A through scale.

Requirements
  • 4+ years of professional full-stack development experience.
  • Strong front-end skills: React with TypeScript, modern CSS, and data visualization libraries (D3.js, Recharts, or similar).
  • Solid backend experience: Node.js/TypeScript or Python; RESTful API design; relational and time-series databases.
  • Experience with real-time data: WebSockets, server-sent events, streaming data, or pub/sub architectures.
  • Familiarity with cloud platforms (AWS, GCP, or Azure) and containerized deployment (Docker, Kubernetes).
  • Strong problem-solving skills and the ability to work independently in a fast-paced startup environment.
  • Bachelor's degree in Computer Science, Engineering, or equivalent practical experience.

Preferred Qualifications
  • Experience with IoT platforms, industrial data, or sensor telemetry systems.
  • Familiarity with data center infrastructure, DCIM tools, or building management systems.
  • Experience with industrial protocols: Modbus, BACnet, SNMP, or similar OT/IoT data sources.
  • Experience building observability or monitoring dashboards (Grafana, Datadog-style interfaces).
  • Demonstrated use of AI-assisted development tools (Cursor, Copilot, LLM-based workflows) to accelerate engineering velocity while maintaining high standards.
  • Experience at an early-stage startup (Seed through Series B).

Benefits
  • Health Care Plan (Medical, Dental & Vision)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Free Food & Snacks
  • Stock Option Plan
  • 401(k)

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