Top Senior Software Engineer Jobs in San Francisco Bay Area, CA

The Back-End Engineer will design and build core platform services, operate production services, and work on AI-powered features while collaborating with cross-functional teams and mentoring junior engineers.

As a Senior or Staff Deployed Software Engineer, you will design and build software solutions, collaborate with teams, and drive technical strategy while engaging with customers to solve complex problems.

Own the technical direction and delivery of Benchling’s internal tools and automation portfolio. Build production systems, SaaS integrations, workflow orchestration, CI/CD, and secure enterprise infrastructure. Partner with internal teams to identify automation opportunities, graduate prototypes into reliable systems, support production operations, enable non-engineering builders, and establish engineering standards. The role also includes technical hiring, mentoring, architecture, threat modeling, and selective application of LLMs and agentic workflows.

Develop and deploy customer-focused web, mobile, and backend applications across the full software stack. Design major features, contribute to architecture decisions, conduct code reviews, and ensure secure, high-quality implementations. Collaborate with stakeholders and cross-functional teams using Agile and SDLC practices. Manage version control, CI/CD, environments, and releases; maintain automated test coverage and perform root-cause analysis. Build and optimize relational data solutions using SQL Server, including complex queries, stored procedures, and performance tuning.

Design, build, deploy, and support scalable Java microservices on AWS. Provide technical leadership, architectural direction, code reviews, troubleshooting, proof-of-concept development, and cross-functional collaboration. Work with high-throughput data, messaging systems, distributed architectures, observability, and AI-assisted development tools. Participate in on-call support, mentor engineers, lead architectural initiatives, and deliver reliable SaaS platform features.

Build full-stack developer experience tooling for Superhuman Docs, including internal platforms, CI/CD pipelines, deployment tools, build systems, local development environments, testing workflows, golden paths, and documentation. Partner with engineers, business-unit leaders, and the central platform team to define developer productivity roadmaps and metrics. Improve release speed, reliability, and engineering workflows across a hybrid monolith and microservices architecture.

Leads and grows multiple software engineering teams while mentoring engineers and partnering with product managers. Oversees full-stack solution design, development, testing, deployment, resilience, scalability, and support. Drives engineering practice improvements, innovation, Agile collaboration, AWS deployments, and modernization of monolithic applications into microservices.

Own the development and maintenance of large-scale React Native applications for iOS and Android. Lead architecture improvements, React Native upgrades, native module development, performance optimization, automated testing, CI/CD reliability, and production debugging. Collaborate with cross-functional product pods, contribute to technical discovery and architecture, mentor engineers, and raise engineering standards while delivering scalable, maintainable mobile experiences.

Design, build, and operate foundational developer infrastructure across CI, build systems, deployment orchestration, and test platforms. Improve build speed, deployment safety, and test reliability while owning services end to end, including SLOs, observability, and on-call responsibilities. Partner with engineering teams to address platform pain points and lead cross-cutting technical projects through production.

Design, build, test, and scale Gusto’s payments infrastructure and platform. Make architectural decisions focused on fault tolerance, scalability, and modularity; modernize Ruby/Rails and TypeScript/React systems; collaborate across engineering, product, design, data science, and operations; deliver software supporting millions of businesses; and mentor fellow engineers.

Own the specification, design, and implementation of features for FareHarbor’s large-scale web application. Collaborate with product teammates, develop scalable and performant full-stack solutions, improve automated testing, resolve technical issues, and participate in code reviews. The role requires strong Python and JavaScript skills, experience with front-end and back-end frameworks, relational databases, and production scalability challenges.

Build and lead scalable data governance systems across the data platform, including privacy policy enforcement, metadata and lineage management, data security, regulatory compliance, and purpose-driven access. Architect reliable systems for high-volume data environments, shape technical strategy and roadmaps, collaborate with Privacy, Legal, Security, and Trust teams, and mentor engineers across backend infrastructure and data engineering.

Build and operate backend-focused production software, APIs, integrations, databases, distributed systems, and asynchronous workflows. Develop AI-enabled and agentic systems with retrieval, tool use, evaluation, permissions, observability, and reliability controls. Own products from definition through iteration, collaborate with data engineering, data science, and SRE, make pragmatic technical tradeoffs, and mentor engineers.

Leads complex, enterprise-scale software engineering initiatives; designs, codes, tests, debugs, documents, and evaluates large technology solutions. Establishes engineering standards, resolves complex technical issues, mentors teams, and collaborates with technical experts and business partners. The role focuses on React-based web applications, accessibility, content management integration, analytics migration, financial services platforms, and front-end development.

Contribute to Reflex, VSCO’s production GPU image-processing engine, expanding RAW processing, large-image export, desktop support, color accuracy, memory management, and performance. Ship engine changes through native bridges to iOS and macOS, maintain shared rendering contracts, diagnose mobile graphics issues, improve packaging and CI workflows, and collaborate across product, design, and engineering on technical direction. The role requires deep GPU and rendering expertise, systems programming, mobile graphics experience, and AI-assisted development workflows.

Build and evolve Notion’s Developer Platform, including APIs, MCP tools, integration infrastructure, and internal platform capabilities. Partner with product, design, data science, and research teams to define strategy and deliver reliable, scalable features. Own production software end to end, improve platform performance and robustness, and drive high-leverage technical investments. Help developers and customers create integrations, automations, and connected workflows.

Build and operate developer tools, internal platforms, development environments, project templates, and AI-enabled workflows for Hivemind engineering teams. Improve developer productivity through reusable tooling, paved paths, documentation, adoption efforts, and inner-source practices. Partner with developers to identify friction, measure outcomes using DORA metrics and feedback, and drive technical direction. Staff-level responsibilities include leading cross-team initiatives and shaping organization-wide developer productivity strategy.

Build and scale backend-focused, full-stack web applications for Braze’s Cloud Data Ingestion and Data Transformation platforms. Drive architectural decisions, technical strategy, and end-to-end feature delivery. Develop scalable systems handling high-volume data and traffic, including automated pipelines, asynchronous processing, and ETL applications. Collaborate within an agile team while delivering reliable front-end and backend experiences that improve customer data integration and platform growth.

Lead development of automated testing frameworks and reusable automation solutions for enterprise web and mobile applications. Architect React-based solutions, support Agile, DevOps, and CI/CD practices, use Jenkins, coach team members, and collaborate across projects. The role requires expertise in JavaScript, React with Redux, Node.js, accessibility standards, wire transfer platforms, and regulated financial services environments.

Design, implement, and maintain observability features: large-scale data ingestion/storage/processing, visualization tools, frontend integrations, reliability via testing, and collaborate across product, design, and infrastructure while engaging with open-source communities and user feedback.

Design, architect, build, and deliver core identity and access management services for MongoDB Atlas. Lead complex technical projects from specification through delivery, improve engineering practices and code quality, define priorities, and mentor team members. The role focuses on authentication, authorization, backend systems, and secure customer-facing IAM features while supporting FedRAMP requirements.

Design and build backend services and APIs for identity resolution and graph integrations. Optimize event-driven pipelines processing billions of signals, deploy cloud-native services on AWS EKS/Kubernetes with Helm, and ensure reliability, observability, and scalability. Collaborate across engineering, product, and data teams while mentoring junior engineers and advancing distributed identity platform architecture.

Join as an early founding full-stack engineer to architect, build, and deploy a scalable platform serving AI-driven voice applications. You will own frontend and backend development, design infrastructure with the CTO, and deliver reliable production systems for enterprise customers.

Own end-to-end customer-facing software for grid capacity analysis, project planning, and infrastructure decisions. Build interactive data-rich interfaces, backend-for-frontend services, APIs, and PostgreSQL data models. Collaborate with product, UX, backend, data, AI, and power systems teams to translate complex technical outputs into reliable product experiences. Independently clarify requirements, make technical tradeoffs, and ship production features in a rapidly evolving environment.

Build and maintain parsing infrastructure, SDKs, data models, and services for hardware design collaboration. Develop parsers for circuit-design formats, binary file-merging capabilities, test harnesses, developer tooling, and performance improvements. Collaborate with engineering, product, sales, and other stakeholders to define interfaces, requirements, timelines, and constraints while driving autonomous, cross-functional projects.