Top Senior Software Engineer Jobs

Design, build, and maintain end-to-end mobile trading systems for iOS and Android. Ship production-quality code, perform code reviews, break down projects, and align cross-functional teams. Apply AI coding tools, support onboarding, and serve as a mobile subject-matter expert within a fast-paced crypto/Web3 environment.

Drive end-to-end feature development from design through testing and deployment, collaborate with product and engineering teams, and improve development processes and code quality.

Build and maintain end-to-end mobile trading systems for iOS and Android. Ship production-quality, well-tested code, apply blockchain and crypto knowledge, and integrate AI tools to improve engineering workflows. Break down projects, collaborate cross-functionally, conduct and act on code reviews, mentor teammates, and participate in hiring and onboarding. Influence product decisions through data-driven insights and provide domain expertise for mobile trading initiatives.

Lead re-architecture and modernization of a legacy C++ execution kernel, improve performance, memory and concurrency behavior, diagnose production issues, and provide technical leadership across design, code review, and cross-functional collaboration.

As a Staff Software Engineer, you'll design, build, and operate software for Urban Sky's manufacturing operation, collaborating closely with users and improving existing systems. You will take ownership of projects, contributing across the stack and ensuring systems are reliable and operable while adapting to evolving business needs.

Design, develop, and operate highly scalable distributed cloud control plane systems. Identify and resolve performance/scalability bottlenecks, deliver end-to-end projects, improve observability, ensure production readiness, and mentor junior engineers.

Build and ship end-to-end features across a React + Vite frontend and Node/Express + TypeScript backend. Integrate institutional data (Postgres, DuckDB) with model inference, create AI agent interfaces, maintain low-latency queries, and deliver reliable, observable production services and internal tooling.

Lead design and development to modernize a legacy C-based EZproxy platform into a scalable, secure Java-based access management solution. Build and deliver services, evaluate AI-assisted tools, solve complex system issues, perform architecture and performance analysis, and participate in production support and modernization planning.

Lead a greenfield rewrite of a cross-platform desktop client in Rust, owning architecture, implementation, release engineering, testing, and maintenance across macOS, Linux, and Windows. Solve deep sync, filesystem integration, secure auto-updates, and E2EE integration while defining CI/CD, observability, and quality standards. Collaborate with product, security, and backend teams and use AI-assisted development tools to accelerate delivery.

Lead end-to-end engineering initiatives across the platform: design and build scalable backend services, APIs, and frontends; prototype quickly; iterate from user feedback; apply AI tooling to improve velocity; own production systems and architectural decisions.

Design, develop, test, deploy, and maintain backend systems for StubHub's Sponsored Listings ad platform. Provide technical leadership, translate product requirements into engineering plans, ensure stability and reliability, own projects end-to-end, and mentor junior engineers.

Design, develop, test, deploy, and maintain backend and frontend systems for StubHub's supply platform. Build scalable, reliable services and APIs to manage seller inventory, meet SLAs, reduce operational costs, and protect against fraud and legal constraints. Mentor engineers and drive technical and product strategy.

Develop and maintain R&D and production software for next-generation radar products, integrate software on COTS hardware, support deployed capabilities for U.S. and international customers, and collaborate on-site in Los Angeles following Agile, CI, and TDD practices.

Lead technical direction for the Growth team at Sanity.io, focusing on scalable solutions, mentoring engineers, and making data-informed architectural decisions.

Develop responsive, user-facing web application components for a centralized AI/ML annotation and model repository. Translate UI/UX designs to interfaces, integrate with backend services via REST/GraphQL, implement performance and security best practices, and author frontend tests and automation. Participate in Agile development and collaborate with end users and designers while maintaining operational systems.

The Senior Engineer will participate in product evaluations, make architectural decisions, write clean code, and work with various technologies in an Agile environment.

You will develop and maintain components of the LLVM based toolchain, collaborating with the community while ensuring platform-specific optimizations and tests.

Design, develop, and test complex web software and systems. Provide technical guidance, participate in architecture decisions, conduct code reviews, ensure code quality, mentor team members, and collaborate cross-functionally to deliver high-quality solutions.

Design, develop, and support scalable cloud-native full-stack applications using Node.js/TypeScript, Svelte, and Rust. Manage PostgreSQL databases, Linux servers, Kubernetes/ECS deployments, and AWS services. Provide technical leadership, mentor engineers, drive architecture and CI/CD, troubleshoot production issues, and collaborate with cross-functional teams to deliver reliable SaaS features.

The role involves architecting and implementing LLM-powered tools to enhance developer productivity, automate mundane tasks, and establish best practices for AI integration in development processes.

Translate requirements and designs into production code using industry-standard techniques. Analyze and resolve issues in existing systems, collaborate with cross-functional teams, and contribute to software development and maintenance.

Design, build, test, deploy and maintain full-stack features for seller-facing systems. Collaborate on architecture and best practices, own projects end-to-end, and mentor junior engineers to improve team capability.

The Fullstack Engineer will lead product development, contribute to team dynamics, and utilize a diverse tech stack, prioritizing curiosity and ownership.

Build and maintain backend services for the Training Data Storefront (TDS): design and implement features, RESTful APIs and streaming services, optimize performance, use Python, Docker, Kubernetes and AWS, follow SDLC best practices, mentor teammates, and work directly with end users in an Agile environment.

Design, develop, and maintain full-stack web applications and scalable backend services for a DoD/IC Training Data Storefront. Implement responsive frontends, Python-based APIs, containerized deployments on AWS, and ensure performance, security, and test coverage while collaborating in an Agile team.