Top Entry Level Software Engineer Jobs in San Francisco Bay Area, CA

Own the design and implementation of a high-scale query engine for hundreds of billions of claims. Responsibilities include storage layout, indexing, query planning, optimization, distributed retrieval across graph, vector, full-text, time-series, and geospatial backends, consistency, latency optimization, and correctness evaluation. The role requires deep distributed database or search infrastructure experience and strong proficiency in Go, Rust, or C++.

Deploy across portfolio companies to understand challenges, solve technical problems, and deliver business-impacting software solutions. Build shared technology services and value-creation playbooks, use AI coding tools to accelerate development, and provide technical leadership and mentorship. The role requires adapting to diverse codebases and technology stacks while combining strong software engineering, strategic thinking, commercial awareness, communication, and hands-on problem-solving.

Design, build, and operate secure access proxies, gateways, credential brokers, and distributed identity infrastructure. Integrate authorization policies, observability, and identity attribution across systems. Improve performance, reliability, and multi-region recovery through testing, load validation, canaries, and failure testing. Own production support, incident recovery, migrations, APIs, client tooling, and self-service workflows while enforcing least privilege and auditable access.

Own and improve Baseten’s billing and revenue infrastructure, including pricing, invoicing, metering, reporting, and Orb integrations. Build internal tooling for quoting, approvals, renewals, usage reconciliation, and revenue reporting. Partner with Finance, Sales, GTM, and engineering teams while driving reliability, monitoring, incident response, production debugging, and scalable technical solutions.

Build internal web applications, APIs, integrations, AI-assisted workflows, knowledge repositories, dashboards, Slack bots, and PDLC automations. Connect tools such as Jira, GitHub, Notion, and data platforms with go-to-market systems. Prototype rapidly, collaborate across Product, Engineering, Program Management, Analytics, and commercial teams, and ensure secure, documented, auditable solutions.

Build and improve a browser-based 3D rendering engine for massive LiDAR datasets and CAD tools. Responsibilities include extending point-cloud rendering and GPU picking, solving geometry problems involving clipping and snapping, optimizing performance for large datasets, and improving shared rendering and interaction systems. The role requires strong 3D math, spatial reasoning, software development ability, and experience with TypeScript and browser graphics or comparable performance-sensitive graphics programming.

Develop and maintain full-stack healthcare applications using C#, .NET, ASP.NET Core, JavaScript, and SQL Server. Design APIs, services, background jobs, database procedures, and responsive interfaces; troubleshoot across application and deployment layers; write automated tests; modernize legacy systems; build secure healthcare integrations; and protect sensitive data. Collaborate with product, QA, support, and implementation teams while participating in design reviews, code reviews, testing, and release validation.

Build and maintain backend services, REST APIs, cloud workspace provisioning systems, and resource orchestration infrastructure. Improve performance, reliability, scalability, and security while developing integrations, SDKs, and developer tools. Contribute to architecture and ship features from concept to production. The role requires strong TypeScript, JavaScript, and Node.js skills, backend and database knowledge, and familiarity with Docker, Linux, and cloud infrastructure.

Build and ship end-to-end memory and search experiences across Claude products, from backend services and retrieval infrastructure through model tools and user interfaces. Run user-facing experiments, improve retrieval relevance and ranking, define product metrics and evaluations, and ensure privacy, consent, enterprise controls, latency, reliability, and product quality. Collaborate closely with product, design, legal, privacy, and safeguards teams while participating in on-call responsibilities.

Build core 0-to-1 systems at the intersection of software, hardware, and finance. Responsibilities include designing abstractions for complex legacy systems, owning the full product lifecycle, developing full-stack products, and deploying production-grade LLM systems for loan underwriting, compliance, and document processing. The role emphasizes backend systems, infrastructure, architectural tradeoffs, customer-focused product development, and contributing to engineering culture.

Design, implement, and optimize GPU software for LLM training using CUDA, WebGPU, and GLSL. Profile and tune GPU kernels and shaders for performance, and develop host-side integrations in C++. The contractor will complete output-based tasks, meet minimum weekly submission requirements, and begin work shortly after onboarding.

Staff Software Engineer responsible for designing and developing backend services, APIs, and data models powering healthcare scheduling and availability systems. The role leads architecture for complex, scalable scheduling logic, drives cross-team technical initiatives, ensures operational excellence, collaborates with product and design teams, mentors engineers, and contributes to engineering quality. Primary technologies include C#/.NET and AWS, with opportunities to work across the stack using React and TypeScript.

Develop custom customer integrations and provide Bubble.io guidance. Build and maintain Salesforce, HubSpot, and other CRM integrations; manipulate data with Python and Pandas; design AWS Lambda microservices; support client onboarding and collaborate with the development team to improve the platform.

Build and maintain Plane’s cross-platform Flutter mobile app, owning features from interface through data and native integrations. Work on widgets, notifications, webview-based editing, caching, persistence, and compatibility across multiple server versions. Collaborate with backend, design, product, and QA teams while writing tests and maintaining consistent architecture. The role requires production Flutter experience, clean architecture, Bloc-based state management, dependency injection, unit and widget testing, and familiarity with native Android and iOS development.

Build and support reliable dashboards for AI infrastructure and financial models, including TCO, tokenomics, and compute capital models. Responsibilities include implementing features, loading model releases, validating data, developing accuracy checks, collaborating with analysts, creating charts and explanations, answering client questions, and contributing to research newsletters. The role requires strong Python or TypeScript skills, software engineering experience, numerical accuracy, and effective use of AI coding agents.

Build and maintain core products and collaborate on larger consulting projects using TypeScript, Python, FastAPI, Next.js, GCP, and generative AI frameworks. The role involves hands-on software development within a rapidly growing, remote team serving Saudi Arabia and the GCC.

Own software engineering projects from architecture and design through deployment and ongoing improvement. Build full-stack features, guide technical direction, modernize core functionality, and maintain quality through code reviews and testing. The role requires daily production releases, self-directed problem solving, strong communication, and on-site work five days per week. Experience in early-stage startups, founding, supply chain, or logistics is beneficial.

Build full-stack, agent-driven software for SOX control testing and internal audit workflows. Design reliable and observable LLM agent systems, create structured audit deliverables, own end-to-end technical workstreams, and collaborate with product, design, auditors, and domain experts. Engineers will help shape agentic architecture, AI tooling, evaluation practices, and product direction while working on ambiguous 0-to-1 initiatives.

Build high-scale internal observability systems covering metrics, logs, traces, cost attribution, chargeback, compliance, and auditing. Partner with backend and platform teams to instrument services, evaluate observability infrastructure, and scale systems for Vercel’s production traffic. The role requires TypeScript, production experience with Go, Rust, or Zig, distributed systems expertise, cloud infrastructure knowledge, and familiarity with observability tooling.

Lead complex card-acquiring projects from design through production, building reliable payment systems, tooling, testing frameworks, and network integrations. Work hands-on with ISO messages, routing, authorization, clearing, settlement, reconciliation, interchange, and tokenization. Set technical direction, mentor engineers, improve reliability, participate in on-call operations, and establish standards adopted across teams. The role requires deep acquiring expertise and experience operating large-scale financial systems.

Design, build, and maintain backend systems for healthcare benefits, including enrollments, payments, payroll, benefits management, data models, fund flows, and partner integrations. Improve automation, monitoring, observability, reliability, and scalability while owning production systems. Collaborate with product, operations, and engineering teams to solve complex problems, manage edge cases, and provide technical direction.

Build and own end-to-end technical solutions for strategic customers, including architectures, product features, and full-scale integrations. Collaborate with customer engineers and executives, apply Python and software development expertise to solve complex problems, and communicate technical concepts clearly. The role is remote-first in the United States with regular travel to customer onsite engagements.

Build and own Braintrust’s billing systems, including usage metering, subscriptions, entitlements, invoices, credits, payments, reconciliation, and observability. Design scalable architectures for usage-based pricing, plan enforcement, account state, and billing workflows. Partner with product, infrastructure, finance, and customer-facing teams while developing internal tools and APIs to investigate anomalies and manage credits. This role requires deep backend expertise and ownership of billing correctness and scale.

Develop and maintain backend services and APIs for Twilio’s communications platform. Responsibilities include designing, deploying, operating, and reviewing software, supporting production operations and on-call rotations, collaborating with a small engineering team, and writing technical documentation. The role requires Go or Java experience and values familiarity with DynamoDB, AWS, Docker, Kubernetes, and Temporal.

Build and ship frontend features for a financial marketplace using React and Next.js. Collaborate with product, design, and backend engineers; contribute to architecture, component design, code quality, tooling, and the shared component library. Own work from design through delivery, participate in pairing and code reviews, and use AI-assisted development tools thoughtfully.