Top Software Engineer Jobs in San Francisco Bay Area, CA

Build and support scalable full-stack production services, including high-availability back-end systems and rich front-end interfaces. Develop impactful product features, evaluate and design scalable architectures, address infrastructure challenges, and collaborate with cross-functional teams. The role emphasizes testing, documentation, user experience, independent execution, and mentoring newer engineers.

Develop full-stack, customer-facing applications for Redfin’s search personalization team using React, Java, AWS, and AI code-generation tools. Build responsive, scalable, high-performance software, evaluate emerging AI tools, balance infrastructure and product trade-offs, collaborate with product and engineering stakeholders, lead projects end to end, and mentor junior engineers. The role may include production-system on-call support.

Senior full-stack engineer who builds backend-heavy features and customer-facing React UIs. Own end-to-end delivery: design, implement, test, monitor, and iterate on scalable RESTful microservices using raw SQL and cloud patterns. Collaborate with product and design, review code, ensure reliability, security, and data correctness.

Build and improve backend systems, internal tools, and user-facing features in collaboration with leadership and cross-functional teams. Lead initiatives from design through delivery, create scalable and maintainable solutions, contribute to technical direction, and mentor teammates. The role emphasizes autonomy, strong communication, user-centric outcomes, and participation in a mission-driven engineering culture.

Design, build, and maintain Gusto’s financial data and payment systems, including ledgers, subledgers, reconciliation, reporting, payment profiles, bank verification, and payment infrastructure. Lead variance investigations, make architectural decisions, scale Ruby/Rails and TypeScript/React applications, collaborate cross-functionally, and mentor engineers while ensuring correctness, auditability, and fault tolerance.

Investigate and improve web client performance across page loading, rendering, interaction responsiveness, asset delivery, and caching. Build performance tests, dashboards, and regression guardrails; analyze browser data; ship scoped improvements; collaborate with infrastructure and product engineers; and document performance findings and recommendations.

Design, implement, and operate Cloudflare’s distributed Load Balancing systems at global scale. Responsibilities include full-lifecycle software development, automated testing, monitoring production deployments, debugging complex systems, reviewing code, collaborating with security, networking, SRE, and product teams, and mentoring colleagues. The role focuses on reliable, fault-tolerant microservices and operational health using Go and related cloud-native technologies.

Develop software for clinical brain-computer interface applications, including BCI data curation, neural decoding algorithms, simulated and real-data evaluation, hardware-in-the-loop testing, code reviews, and feature development. Collaborate with engineering, neuroscience, machine learning, and quality teams to define requirements and support clinical studies. Regular travel between Austin and Oakland offices is required.

Develop and deploy data solutions using Palantir Foundry and AIP for client engagements. Lead technical teams, coach team members, analyze system interactions, build applications with large datasets, and apply data engineering and analytics to deliver client outcomes. The role also includes managing client relationships, planning and executing projects, encouraging technology adoption, resolving stakeholder conflicts, and driving continuous improvement.

Design, build, scale, and operate high-volume payment APIs and distributed systems serving global traffic. Lead complex engineering projects from requirements through production, improve reliability, performance, observability, fault tolerance, and security, and participate in on-call and incident response. Collaborate across product and engineering teams, use AI-assisted development tools responsibly, and mentor engineers through technical reviews and documentation.

Build growth-focused technical foundations, polished React interfaces, AI coding-agent systems, and end-to-end product experiments. Use data, customer research, A/B testing, and product intuition to identify opportunities that improve activation and engagement. Provide technical leadership, mentor engineers, collaborate cross-functionally, and balance product quality, speed, and business impact.

Design, build, and maintain scalable backend enterprise services for user, group, and membership management. Develop TypeScript, REST, and JSON services; implement SCIM-based identity synchronization and lifecycle management; operate high-scale systems through on-call rotations; and use Terraform, AWS CloudFormation, and Kubernetes to deliver highly available applications. Collaborate across teams on large-scale projects involving security, identity protocols, and access control models.

Build and operate backend advertising services and APIs using Node.js and TypeScript, develop server-driven ad experiences, integrate advertising partners, and ship Android features in Kotlin. Improve system performance, reliability, observability, and testing while collaborating with senior engineers, product, and media sales teams. The role supports advertising across Android, iOS, web, and live video streaming applications.

Lead architecture and hands-on development for cross-product onboarding and growth initiatives spanning Atlassian products. Build React and TypeScript micro-frontends, backend microservices, APIs, experimentation frameworks, and telemetry systems. Drive performance, reliability, modernization, and operational excellence while collaborating across product teams. Mentor senior engineers, author technical specifications, lead design reviews, and establish reusable patterns for multi-product user journeys.

Develop backend systems and continuous delivery platforms that help engineering teams release software independently and safely. Responsibilities include writing tested and extensible code, collaborating with stakeholders, debugging code, participating in code reviews, balancing delivery speed with reliability, and contributing to team growth. The role involves working with distributed systems and technologies including Python or Kotlin, AWS, MySQL, and Kubernetes.

Build backend systems that process and analyze millions of contracts, orchestrate LLM and data-extraction pipelines, develop scalable clustering and retrieval systems, and collaborate with lawyers and product teams. The role emphasizes pragmatic engineering, resourcefulness, urgency, product impact, and working effectively in a fast-growing startup environment.

Deploy production AI agents for supply chain customers by designing integrations, building workflows, debugging systems, and improving reliability. The role partners directly with customer operators, engineers, and executives; connects agents to APIs, systems, and data; evaluates agent quality; and converts deployment learnings into reusable product capabilities. Work includes agent behavior, application logic, data, security, observability, and production operations.

Build and operate Vercel Connect, a platform for agent identity, authorization, credentials, integrations, and event forwarding. Develop third-party provider integrations, authentication flows, token infrastructure, secure credential storage, SDKs, consent flows, and webhook systems. Improve uptime, performance, developer experience, and integration scalability while collaborating with external companies and internal teams. The role requires strong TypeScript, backend and frontend development, OAuth/OIDC expertise, and security knowledge related to integration systems.

Build and operate Vercel’s compute infrastructure across global regions. Responsibilities include writing Golang, provisioning infrastructure with Terraform, managing Nomad-scheduled clusters, working with Linux primitives, virtual filesystems, and virtualization, and improving platform reliability and performance. The role includes distributed systems development, cross-team collaboration, and on-call support.

Lead the technical direction and implementation of large-scale SaaS product features. Build secure, reliable, maintainable, well-tested software; evaluate architectural trade-offs; debug team inefficiencies; and contribute to code reviews, documentation, and complex bug fixes. Collaborate across product, design, and engineering, influence strategy, identify organizational blockers, mentor engineers, and improve engineering practices around testing, performance, security, privacy, and reliability.

Develop and support C++ features for Lens Engine and Lens Studio, enabling augmented reality experiences across Snapchat and Specs. Contribute to agentic development tooling, architecture, technical roadmaps, code reviews, and cross-functional engineering efforts. Improve code quality, reliability, performance, testing, maintainability, and developer productivity while integrating AI-assisted workflows and systems.

Build and lead real-time 3D augmented reality applications for Spectacles and Snap OS. Responsibilities include designing spatial interactions, integrating system services and platform APIs, optimizing applications for resource-constrained AR hardware, making architectural decisions, defining technical direction, collaborating cross-functionally, and mentoring engineers.

Build and launch complex backend projects, design scalable architectures, lead code reviews, resolve high-risk issues, and contribute to company-wide engineering initiatives. The role involves Java development, distributed systems, cloud platforms, databases, performance optimization, mentoring engineers, and influencing technical decisions across teams.

Develop and launch reliable backend systems using Python or Kotlin, AWS, MySQL, and Kubernetes. Break projects into deliverable phases, collaborate with product, design, and analytics teams, monitor system metrics, support availability and on-call operations, debug code, conduct code reviews, and contribute to team growth and interviewing. The role requires 1.5+ years of software engineering experience and strong communication skills.

Design, implement, test, debug, and operate scalable backend services such as identity, friend graph, and persistence systems. Collaborate across teams to deliver product solutions while maintaining availability, scalability, security, operational excellence, and cost efficiency. Investigate incidents and hotfixes, apply distributed-systems best practices, and use AI-assisted development tools while auditing output for quality and security.