Top Software Engineer Jobs in San Francisco Bay Area, CA

Build and operate scalable, customer-facing full-stack software for Samsara’s safety products. The role involves developing web, mobile, API, and platform capabilities; integrating LLMs, agentic workflows, and RAG; evaluating AI quality; and improving reliability, scalability, and operational health. The engineer collaborates with Product, Design, ML, and platform teams while owning features from concept through production.

Build and deliver backend payment-processing features using Kotlin, scalable APIs, microservices, and containerization. Develop automated tests, monitor feature rollouts, collaborate with UX and product management, and participate in design and code reviews. The role supports Toast’s unified payments platform and requires East Coast working hours.

Build and maintain scalable backend platforms for capital orchestration, transaction reconciliation, collateral movement, data pipelines, and business workflows. Collaborate with engineers, product managers, designers, analysts, and business stakeholders to design systems, write tested code, improve reliability, and deliver projects incrementally. Support production operations through monitoring, metrics, debugging, code reviews, and on-call responsibilities.

Build end-to-end product features from design through delivery, lead projects and product areas, shape technical systems and engineering practices, make pragmatic scalability decisions, and mentor teammates. The role requires strong frontend or backend expertise with the ability to work across the stack, product intuition, cross-functional communication, and ownership in a growing, mission-driven team.

Build and operate Block’s data platform, including warehousing, orchestration, business intelligence, governance, and agentic workflows. Develop reliable Python services, developer tools, and Terraform infrastructure for petabyte-scale data. Partner with data practitioners and product teams, establish engineering standards, provide technical direction, and mentor engineers while ensuring security, reliability, observability, usability, and data governance.

Build and operate a scalable data platform supporting warehousing, orchestration, business intelligence, governance, and agentic workflows. Develop Python services, Terraform infrastructure, and developer tools for petabyte-scale data. Partner with data practitioners and product teams, establish security and reliability patterns, set technical direction, improve engineering standards, and mentor engineers.

Leads the development and deployment of data solutions using Palantir Foundry and AIP. Manages engineering teams, coaches team members, oversees project planning and execution, analyzes system interactions, manages client relationships, and drives innovation. The role applies software engineering, data engineering, analytics, and AI/ML techniques to deliver scalable client solutions while maintaining technical and professional standards.

Leads the development and deployment of software and data solutions using Palantir Foundry and AI/ML technologies. Responsibilities include data engineering, analytics, system improvement, client account management, project ownership, team leadership, coaching, stakeholder engagement, and continuous improvement. The role requires building scalable applications with large datasets and delivering customer-focused solutions.

Build and maintain scalable full-stack web applications for Snap’s user-facing products. Develop interfaces and services, optimize performance, contribute to shared libraries, analyze operational and engagement metrics, and use AI-assisted workflows while maintaining code quality, security, scalability, and production readiness.

Build and enhance cloud-based applications for mission-critical workloads. Responsibilities include designing, coding, testing, debugging, integrating, and deploying application modules; developing CI/CD pipelines; applying cloud-native, DevOps, security, scalability, and performance practices; and collaborating with project managers and development partners to deliver, monitor, and support cloud services.

Develop and architect backend-focused full-stack features for Words With Friends using C#, Ruby on Rails, Unity, cloud infrastructure, APIs, databases, and DevOps practices. Responsibilities include designing gameplay systems, optimizing performance, managing deployments and live operations, writing tests, reviewing code, collaborating cross-functionally, documenting solutions, contributing to architecture, improving development workflows, and mentoring junior engineers.

Design, build, and operate shared backend platforms and frameworks for data acquisition, processing, and access. Lead projects from architecture through production, develop event-driven and batch or streaming systems, and improve reliability, observability, scalability, and data quality. Collaborate with software engineers, data engineers, and data scientists, make architectural trade-offs, mentor engineers, and contribute to technical standards. The role may also involve external data integrations and analytics and machine-learning data systems.

Lead technical strategy for Cash App Banking’s server engineering team, drive architecture and infrastructure improvements, contribute hands-on code, make cross-functional technical decisions, and mentor engineers. Build robust, scalable financial systems using modern backend technologies and event-driven microservices. Apply an AI-first mindset while delivering large-scale banking features and maintaining high engineering standards.

Build and evolve Notion’s Developer Platform, including APIs, MCP tools, integrations, and automation infrastructure. Develop internal and customer-facing platform capabilities, improve product reliability, performance, and scalability, and partner with product, design, data science, and research teams to define strategy and deliver features. Identify high-leverage technical investments and own software features end to end.

Provides technical leadership on complex, high-impact engineering projects from design through launch. The role involves architecture, company-wide initiatives, engineering excellence, mentoring technical leaders, and establishing standards for scalable, reliable, secure, observable systems. The engineer will collaborate across teams, communicate complex technical topics, and apply customer-focused decision-making and A/B testing techniques.

Lead backend architecture and deliver reusable solutions, unblock engineering teams across the development lifecycle, drive complex design and bug fixes, set code review standards, mentor engineers, collaborate on company-wide projects, and make technical decisions balancing correctness, performance, and customer impact.

Build and improve backend services, REST APIs, monitoring, CI/CD pipelines, content-management integrations, and reliable customer-facing features. The role requires collaborative software development experience with prominent programming languages, REST integrations, Git, and server technologies such as Docker, NGINX, and Node.js. Experience with enterprise content management systems, AWS, Java, Freemarker, or Rust is advantageous.

Paid 12-week software engineering internship involving coding and shipping product features, full-lifecycle development, technical training, mentorship, and collaboration on Atlassian cloud and core products. Interns will apply programming, data structures, algorithms, and software design fundamentals while working with senior engineers. Preferred experience includes prior software engineering projects or internships, AI/ML exposure, and familiarity with design patterns.

Lead technical direction and implementation of large-scale product features, delivering secure, reliable, maintainable full-stack software. Collaborate with product, design, and engineering teams, address production issues, conduct code reviews, document solutions, and mentor teammates. Build and test front-end and server-side systems using modern frameworks, APIs, databases, and data-driven development practices.

Build REST APIs, customer-facing React components, backend monitoring, CI/CD pipelines, content management system integrations, and reliable features and services. The role requires JavaScript or TypeScript experience with React and Node.js, REST platform integrations, Git collaboration, HTML and Sass/CSS, server technologies, and cross-functional work with UX and visual designers. Experience with enterprise content management systems, AWS, Java, Freemarker, or Rust is advantageous.

Own the technical vision, architecture, roadmap, and operations of SoFi’s enterprise Temporal workflow orchestration platform. Design multi-region resiliency, self-service provisioning, access controls, SDKs, and platform features; manage the Temporal Cloud partnership and infrastructure costs; resolve high-severity incidents; establish reliability and developer-experience standards; and mentor engineers across teams. The role also champions AI-assisted engineering and partners with business and engineering leaders on distributed workflow use cases.

Develop and maintain scalable Python software, integrations, and web applications. Collaborate with QA, IT operations, analysts, and stakeholders in an Agile/Scrum environment. Design technical solutions, translate workflows into requirements, participate in code reviews and Scrum ceremonies, optimize relational and non-relational database queries, troubleshoot production issues, and improve application performance and security.

Own complex performance challenges across the Weights & Biases platform and infrastructure. Design scalability and latency experiments, build benchmarking and load-testing frameworks, prevent performance regressions, and integrate measurement into CI/CD. Collaborate with product, infrastructure, and SRE teams to analyze system behavior, develop scalable architectures, and enable engineers through tools, processes, and data-driven performance improvements.

Design and lead scalable backend systems powering search, recommendations, personalization, metadata, ranking, and content discovery. Drive architecture for distributed systems, APIs, indexing pipelines, caching, reliability, observability, and experimentation platforms. Partner with product, data, machine learning, and platform teams to improve relevance and performance. Mentor engineers, influence technical direction, and advance engineering productivity, deployment safety, and operational excellence across high-traffic services.

Lead Android engineering for Snapchat content experiences across Stories, Spotlight, Discover, and content interactions. Design and ship scalable features, optimize video playback and application performance, improve Android architecture, and reduce technical debt. Partner with Product, Design, ML, Backend, and Ads teams on strategy and execution. Provide technical leadership through mentorship, design reviews, cross-team alignment, and delivery of complex initiatives.