Top Senior Software Engineer Jobs

Design, build, and maintain production-grade full-stack applications using React, Node.js, and TypeScript. Develop scalable backend services, REST/GraphQL APIs, and cloud-native solutions on AWS. Contribute to system architecture, observability, and event-driven designs, own features through deployment, and collaborate with Product and Design to deliver secure, high-quality software.

Senior Software Developers design, develop, and support full-stack enterprise applications (.NET, React, Python). They translate business requirements into scalable solutions, contribute to architecture decisions, implement AI-enabled features (LLMs, semantic search, RAG), write production-quality code, mentor junior engineers, participate in code reviews, and support CI/CD, debugging, and modernization efforts across multiple firm application workstreams.

Design, develop, and scale backend services and infrastructure for AI products and IoT fleets. Build highly available, observable systems (progressive OTA, distributed tracing), collaborate with AI teams, optimize cost and portability, and mentor junior engineers.

Develop reliable software for SpaceX's launch vehicle production and flight. Create applications, manage engineering changes, and improve systems to support engineering. Collaborate on architecture and design, ensuring performance and integration of AI systems.

Lead and contribute to design and build of high-performance, reliable, scalable network acceleration and distributed systems. Debug complex issues, optimize performance and fault tolerance, work across OS, networking, cloud, and full-stack components, and collaborate with engineering teams to deploy production services.

Lead architecture and implementation of ledger, payments, and money-movement systems. Design reliable backend services, integrations, and data models for balances, reimbursements, reconciliation, reversals, and payment state. Guide technical decisions, mentor engineers, partner with product leadership, and apply production financial systems experience to ensure correctness and operational reliability.

The Senior Software Engineer will design scalable backend services, develop frontend applications, optimize databases, and mentor junior engineers while collaborating with product managers.

The Staff Software Engineer will architect and scale backend systems for AI workflows, ensuring robust performance and reliability in enterprise applications.

Designs, develops, and maintains application systems; leads architecture, requirement analysis, and medium-sized projects; provides technical leadership, mentoring, and Tier II/III support; ensures quality, integration, testing, and production readiness across assigned application domains.

As a Founding Staff Software Engineer, you will lead the design and development of robust backend systems and APIs, optimize large-scale data workflows, and mentor a growing engineering team.

The Senior Software Engineer will design and implement services and APIs, mentor team members, troubleshoot existing applications, and engage in Agile product teams to ensure quality, scalable solutions.

The Senior Software Engineer will build a scalable real-time production service, manage distributed inference systems, and oversee data pipeline implementation.

The Senior Product Engineer will deliver the iOS app for Stream, collaborating across teams for architecture, optimization, and user experience enhancements.

Design and build AI-driven agents and large-scale backend systems to improve efficiency in revenue organizations, ensuring reliability and scalability during high-volume processing.

Design and build scalable, event-driven backend systems for AI agents, ensuring reliable agent logic, orchestration, and fault tolerance across workflows.

Own and modernize iHerb's product catalog across backend, React frontend, and relational data. Build end-to-end features, use AI-driven SDLC tools, write automated tests, ensure observability, participate in on-call incident response, and contribute to shared engineering standards.

The Senior/Staff Software Engineer will build and scale search and retrieval systems to enhance AI agents, ensuring data relevance and accessibility for customer interactions.

As a Senior/Staff Full Stack Engineer, you will design and implement the user interaction systems for Actively's AI Agents, owning the end-to-end development process from backend to frontend, while ensuring high performance and usability based on customer feedback.

Design and build foundational systems for user interaction with AI agents through a web interface, including architecture, features, and intelligent interactions, ensuring high performance and customer-centric experiences.

Build and scale search and retrieval systems for Actively's AI agents, leveraging diverse data sources and improving relevance and precision in outputs.

Design, develop, and maintain scalable backend systems and microservices for fintech products. Build REST APIs, support greenfield projects and improve existing systems (card payments, treasury, transactions, crypto liquidity). Use Java and Spring Boot with Postgres, practicing TDD, DDD, and CI/CD to deliver maintainable, high-performance services.

Design, develop, and maintain scalable backend systems and microservices (payments, treasury, transactions, crypto). Build REST APIs, use Java and Postgres, apply Spring Boot, TDD, DDD, and CI/CD to deliver maintainable, high-performance services.

Design, build, and operate distributed, high-volume transactional backend services in Go. Own scope, architecture, correctness guarantees, production behavior, observability, and automated verification. Collaborate across product, infra, and QA while using agent-driven engineering practices.

The Staff/Principal Software Engineer will work in a remote global team, addressing software engineering challenges while fostering collaboration and clear communication.

The role involves leading application development projects, providing architectural guidance, mentoring teams, and ensuring adherence to best practices in software development. It requires strong understanding of technology and business functions, risk management, and continuous improvement in processes.