Top Software Engineer Jobs

As a Senior Software Engineer at Duolingo, you will collaborate on software projects, maintain backend services, and optimize delivery pipelines while ensuring quality and reliability.

Design, code, test, debug, and document changes to lottery systems. Contribute to requirements, participate in code reviews, maintain documentation for audits, support 24/7 production as needed, and follow development standards.

Responsible for designing, developing, and implementing digital solutions, conducting testing, collaborating with teams, and directing innovation in projects.

The Senior Software Development Engineer designs and implements digital solutions, conducts testing, collaborates with teams, and contributes to technical direction.

Design, build, test, and deploy full-stack web applications using the .NET framework. Collaborate with cross-functional teams, write maintainable code, perform unit/integration testing, troubleshoot issues, participate in code reviews, and ensure application performance, quality, and responsiveness.

Design, develop, test, and manage .NET applications; integrate third-party components; improve and automate processes; work on large-scale data processing, statistical modeling, and analytics; participate across the SDLC and conduct code architecture and milestone reviews.

Design and implement secure, high-performance, responsive frontend UIs for networking, data management, and cloud platforms using React and TypeScript. Integrate with backend APIs (REST, GraphQL, gRPC, WebSocket), optimize performance and caching, enforce secure data handling and authentication, and collaborate with designers and backend engineers.

Design, implement, and maintain Windows kernel/low-level drivers and system software. Collaborate with hardware, firmware, and applications teams, debug cross-domain issues using software and hardware tools, participate in reviews, write technical documentation, and support customer engagements and platform validation.

Develop desktop configuration and tuning tools for Cirrus Logic ICs; collaborate with applications, systems, and firmware teams to gather requirements, break work into tasks, estimate, and deliver high-quality, scalable tools while improving development processes.

Develop, test, and improve software solutions while collaborating with team members and customers. Manage GitLab pipelines and maintain documentation.

As a Full Stack Software Engineer for Monitoring Infrastructure, you'll design and develop a monitoring stack enabling data collection and troubleshooting for robotic systems while collaborating closely with the Robotics team.

Develop software solutions for SpaceX's operations, create new applications, and collaborate on architecture, design, and code reviews.

As a Software Developer, you'll create software solutions, develop web applications, and automate processes, while executing the full software development life cycle.

The Sr Software Engineer delivers complete solutions throughout the Software Development Lifecycle, advises management, guides junior engineers, and makes technical decisions with minimal supervision.

Lead design and architecture of scalable, cloud-native Java backend systems using microservices and serverless patterns. Drive technical roadmap, mentor engineers, ensure high performance, reliability, security, and disaster recovery. Collaborate cross-functionally to deliver robust payment-related services and improve engineering practices and processes.

Design, implement, test, deliver, and operate scalable backend Python services for authentication and authorization. Guide junior engineers, participate in code reviews, troubleshoot distributed systems, and collaborate with product and security teams to improve performance and reliability.

Design and build cloud-native, JVM-based systems powering an AI-driven retail data platform. Collaborate with product, data, and engineering teams to deliver scalable microservices, continuous deployment pipelines, and production-ready solutions while owning technical direction and operational reliability.

Lead design and execution to modernize billing, license management, and financial systems from a PHP monolith to a scalable service-oriented architecture. Architect invoicing, payments, reconciliations, and integrations with ERP/payment platforms, ensure data integrity, compliance, observability, and cross-functional alignment with Finance and Operations.

Senior backend engineer responsible for designing and implementing scalable, high-availability backend services for investment and financial products. Work primarily on backend APIs, integrations with financial institutions, databases, testing, troubleshooting production issues, and contributing across the stack while focusing on performance, security, and maintainability.

The Senior Software Developer will oversee full-stack delivery, enhance web applications, integrate data, and support user training while ensuring secure coding practices.

Design and implement scalable backend services in Node.js/TypeScript, own GraphQL APIs and event-driven systems, integrate Shopify and external systems, ensure observability and production-ready, secure APIs.

Design and implement frontend-focused, end-to-end features using TypeScript and Python. Lead architecture decisions, build scalable accessible UIs with React, collaborate across teams, use AI tools to accelerate delivery, participate in code reviews, and own meaningful platform components.

Design and implement scalable full-stack and backend systems for real-time emergency data delivery. Drive architecture, performance, observability, and AI-driven features. Collaborate on code reviews, pair programming, and cross-team alignment while improving processes, refactoring systems, and accelerating delivery with modern AI tools.

Responsible for creating and maintaining technical documentation using Docs-as-Code practices. Requires expertise in version control, CI/CD, and DoD security compliance.

Lead software innovation projects, design scalable systems, develop interactive experiences, integrate tools like Unreal and Unity, apply machine learning.