Top Software Engineer Jobs

Develop highly reliable full-stack software and mission-critical applications for SpaceX operations and flight systems. Responsibilities include designing software architectures, building prototypes and applications, improving performance, solving user problems, and participating in design and code reviews. The role involves end-to-end software ownership, web application development, testing, deployment, monitoring, streaming data, databases, containerization, and infrastructure management.

Develop reliable full-stack software and mission-critical applications used across SpaceX. Responsibilities include creating new applications, prototyping architectures, owning software and product development, solving user problems, and participating in architecture, design, and code reviews. The role involves building scalable systems for aerospace manufacturing, launch operations, and Starlink, with emphasis on testing, deployment, monitoring, performance, and collaboration.

Hands-on senior frontend engineer to set architecture and technical direction for a TypeScript/React/Next.js platform. Own design for data-access, performance, monorepo standards, and CI; diagnose memory and render issues; lead design reviews, mentor a team of ~6, and work with backend, product, and users to translate requirements into scoped work.

Design, develop, and maintain secure, production-grade Python/Django applications and REST APIs; implement AuthE authentication patterns (OAuth/OIDC/SAML) for external users; build analytics and visualizations from large datasets; use AI-assisted development tools to accelerate delivery; ensure operational stability, CI/CD, and secure coding practices.

Lead design and implementation of a petabyte-scale unified virtual memory and system software stack for accelerator-based large-scale clusters. Build custom allocators, runtimes, schedulers, and Linux kernel/driver components. Integrate and optimize HPC workload managers, ensure high-throughput resource management, and remove kernel-space bottlenecks for massive parallel jobs.

Build and maintain Leland’s platform and foundational infrastructure while collaborating with product, design, and engineering teams. Develop high-quality, performant code, propose product innovations, and ensure quality through testing and code reviews. Contribute to an inclusive, collaborative team culture and help shape products in a fast-paced, AI-native startup environment.

Build Android SDKs and end-user applications that collect sensor data, provide real-time feedback, and support indoor item positioning. Integrate mobile software with RFID scanners, barcode readers, peripheral hardware, and third-party systems. Drive complex projects end to end, contribute across the product lifecycle, and collaborate autonomously with business stakeholders. Emphasize maintainable, performant mobile architecture, correctness, intuitive user experiences, and potentially backend development, testing, and enterprise SDK support.

Build end-to-end mobile, web, backend, data, and infrastructure features for Cartesian’s indoor inventory positioning platform. Develop applications for retail associates, internal research, and business teams; create APIs, dashboards, datasets, and scalable services. Manage cloud infrastructure with Kubernetes, Helm, and Terraform, while improving CI/CD and architecture. Collaborate directly with customers and users, test on physical devices, and autonomously drive projects from prioritization through delivery.

Build full-stack features for a real-time collaborative content platform, spanning backend services, APIs, and frontend systems. Design and implement maintainable, well-tested software; contribute to architecture and technical decisions; collaborate with product and design; integrate AI into development and product workflows; participate in code reviews; and help establish engineering quality standards on an early-stage team.

Twelve-week, in-person software engineering internship in San Francisco. The intern will own and ship a meaningful product or infrastructure project, potentially involving search quality, data sources, LLMs, internal tools, developer experience, testing, or user experiences. Responsibilities include building alongside engineers, learning the technology stack, seeking feedback, and presenting completed work. The role includes manager and mentor support, cohort programming, and a $60 hourly wage plus housing or relocation support.

Develop and maintain C#/.NET desktop applications, libraries, user interfaces, and manufacturing support software for motion-control products. Collaborate with engineers to debug complex issues, implement features, test functionality, document solutions, and support the full software development lifecycle. The role also includes short-term engineering rotations and requires adapting to different technologies and project contexts.

Designs and develops enterprise software applications, integrations, database solutions, reports, and data-driven tools using .NET technologies, SQL, and related platforms. Supports development infrastructure, automated testing, business intelligence, and software quality initiatives. Collaborates with engineers to troubleshoot complex issues and deliver new features. The role includes rotations through related engineering departments as part of an employee development program.

Develop and maintain software and analytics for an enterprise cybersecurity tool, emphasizing automated security authorization, continuous monitoring, data gathering, and reliable data delivery. Responsibilities include Pig and PySpark development, database queries, software design, debugging, testing, documentation, performance improvement, data investigation, and integration. The engineer will collaborate within a Scrum team and review data ingestion tickets and code changes.

Design, implement, and optimize low-latency C++ trading applications and infrastructure. Collaborate with traders, quants, and engineers to build production-ready systems, maintain proprietary quoting and pricing tools, analyze diagnostic data, and gradually assume production ownership with mentorship.

Build and maintain scalable backend platform systems supporting contracts, payouts, fraud prevention, identity, and access management. Develop reliable infrastructure, improve security and developer experience, translate operational needs into backend services, and contribute across high-priority platform initiatives. The role requires strong ownership, architectural judgment, and the ability to deliver practical systems amid ambiguity.

Design and develop scalable, high-performance data and API infrastructure for real-time processing. Mentor engineers and collaborate with teams to enhance AI model evaluations.

The role involves designing and building data pipelines for analyzing user feedback on AI models, ensuring data quality and infrastructure scalability.

The Senior Software Engineer for the Treasury team will develop backend services for fund management, ensuring system reliability and leading projects in a fast-paced environment.

Designs, develops, and optimizes low-level software for semiconductor equipment across the full software development lifecycle. Responsibilities include building .NET applications with C# and WPF, implementing client-server and hardware communication using WCF, TCP/IP, serial, and related protocols, and participating in code reviews, testing, integration, and architecture improvements. The role collaborates with cross-functional teams to translate customer requirements into technical solutions.

Build and operate full-stack SaaS features across Go services and Vue interfaces. Develop customer installation and instrumentation experiences for agentic systems, expose agent behavior telemetry, and create LLM-backed capabilities involving prompts, context, tool calling, and evaluation. Own production delivery through testing, feature flags, monitoring, logging, and incident resolution. Collaborate through code reviews, documentation, estimation, and clear communication.

Provides technical leadership and hands-on software engineering for intelligence community data transformation and system modernization. Designs scalable Java or Python backend applications, microservices, APIs, distributed data pipelines, and cloud-native systems. Guides architecture, database strategy, security, performance, DevOps, and container orchestration across secure AWS or Azure environments. Mentors engineers, leads technical design sessions, and collaborates with government stakeholders and architects to develop technical roadmaps.

Leads architecture and development of Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, selecting technologies, developing analytics and infrastructure, solving complex problems, guiding product direction, mentoring engineers, and improving scalability and sustainability. The role collaborates across engineering, product, design, QA, Mozilla, and open-source communities in a fully remote environment.

Lead architecture and technical direction for Thunderbird’s web-based Services products, including calendar and secure file storage offerings. Responsibilities include writing code, prototyping, making technology decisions, developing analytics and infrastructure, solving complex problems, mentoring engineers, collaborating across product and design teams, and improving system scalability and maintainability. The role also contributes to product growth, open-source collaboration, and data-informed decisions within a fully remote international team.

Build large-scale video services and rebuild media processing and distribution pipelines using high-performance languages. Ensure exceptional media quality, performance, and reliability across video playback, live streaming, audio/video calls, and other products. Work with distributed systems and media technologies such as WebRTC, LL-HLS, and video transcoding while optimizing end-to-end performance at scale.

Software Engineering Interns will design, build, test, and improve production enterprise SaaS software across frontend, backend, APIs, data, AI-enabled features, and platform engineering. Responsibilities include developing user interfaces and backend services, integrating databases and APIs, processing data and documents, improving performance and scalability, writing maintainable code, participating in reviews and testing, and collaborating with engineering and cross-functional teams in an Agile environment.