24 backend software intern jobs at 16 companies in Vallejo, CA
🚀PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yrOn-SiteFull Time
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
PlusMinusOne: Develops and markets a portfolio of utility and lifestyle apps
0+ YOE3rd/4th-year CS or engineering student with backend interest; hands-on backend experience via coursework/projects/internships; OOP, data structures, algorithms, and Git familiarity; strong analytical and communication skills.
Rippling: Unified platform managing workforce HR, IT, and finance operations
Current undergraduate/graduate student in CS or related field, previous software engineering internship experience with Python, backend programming skills, strong communication and critical thinking.
GenBio AI: Developing AI foundation models to simulate and program biology.
0+ YOECurrently enrolled in a full-time Master’s or Ph.D program; strong CS fundamentals; frontend React/TypeScript; backend with FastAPI; self-starter in fast-paced startup.
Cohere: Provides enterprise-grade large language models and AI software platforms.
Enrolled in a post-secondary program; available for a full-time 3-6 month internship; remote; roles across frontend, backend, full-stack, and infrastructure.
Chasi: AI revenue engine for construction equipment dealers.
1+ YOE1+ internships in production software; full-stack TS/React with backend; experience with LLMs; real-time systems; strong architectural judgment; customer-facing; ownership.
Serval: AI platform for automating IT and enterprise service workflows.
Currently pursuing a technical degree (graduation 2026–2028), strong CS fundamentals, familiarity with a backend language (Go/Java/Python), clear communication, and eagerness to learn in a startup environment.
Broccoli: AI agents for home service business front-office operations.
Strong software engineering fundamentals, production-quality code, full-stack with backend focus, experience building internal tools or growth systems, comfortable in ambiguity and cross-functional work.
Salma Health: Delivers integrated brain health clinical care and diagnostic technology.
3+ YOE3–5 years in software engineering; backend systems and APIs; AWS; multi-language tech; integrations with EHR/CRM; internal tooling; production systems in fast-paced environments.
OpenAI: Develops artificial intelligence models and generative AI software services.
Experienced in building production frontend and backend systems, designing interfaces for operational/internal tools, strong backend fundamentals (APIs, data modeling, integrations), security-conscious design, and cross-functional collaboration.
IAM, ITSM, RBAC, Zero Trust, APIs, SOC 2, ISO 27001, FedRAMP, NIST
Boston or Kyiv or Seattle or Lviv or San Francisco
HybridFull Time
DataRobot: Provides an enterprise platform for building and governing AI.
7+ YOE7-10+ years in engineering with 5+ years in infrastructure/platform/backend; Kubernetes internals; Python/Go; multi-cloud or hybrid deployments; IaC; GitOps; strong mentoring and leadership.
Anthropic: Developing safe and reliable artificial intelligence systems.
8+ YOE8+ years building backend systems, data pipelines, or internal platforms; proficiency in Python or Go; experience with cloud platforms and infrastructure-as-code; strong systems thinking and experience with integrations or data infrastructure.
Python, Go, AWS, GCP, Azure, Claude, ServiceNow, Vanta, Drata, OneTrust, REST APIs, webhooks, CI/CD, ELT, ETL, infrastructure-as-code, version control
Plato: Building foundational infrastructure to train specialized AI agents.
Experience building backend systems, data pipelines, product surfaces, and internal tools for AI/research workflows; strong product engineering judgment, emphasis on correctness, observability, and iteration speed.
Sphere: AI-powered global tax compliance and automated filing software.
Experience building production software; AI agents or internal developer tooling; backend systems; safety and autonomy; strong initiative and attention to detail.
Twelve Labs: AI foundation models for video search and human-like understanding.
Strong backend engineering in Python or Go, system design and 0→1 internal product experience, experience with large unstructured datasets, full-stack capability, and familiarity with cloud data platforms, data governance, and access control.
CloudflareNYSE: NET: Provides security and performance services for internet properties.
5+ YOE5+ years full stack engineering experience; strong backend (Python, Go, Node.js) and frontend (React, TypeScript); SQL/NoSQL, API design, cloud-native architectures (Cloudflare Workers, AWS/GCP); familiarity with data pipelines, LLMs/ML, and audit/risk concepts.