Top Senior Software Engineer Jobs

Own and deliver server-side features end-to-end for a cloud-hosted accounting SaaS: design data models and APIs, improve performance and reliability, mentor engineers, ensure observability and on-call readiness, collaborate with product and clients, and apply AI-assisted development safely to accelerate delivery.

Design and develop portfolio performance measurement systems, optimize reporting workflows, and mentor engineers in a collaborative FinTech environment.

Lead design and implementation of scalable backend services powering admin content ingestion, agent-driven roleplay workflows, and AI-powered analytics. Own integrations, APIs, cloud infrastructure, and mentor engineers to improve reliability and impact at enterprise scale.

The Senior Software Engineer will enhance the platform through collaboration, technical leadership, and by developing high-quality frontend components, ensuring best practices and performance.

Design, implement, and optimize foundational CUDA C++ libraries, parallel algorithms, utilities, and runtime abstractions. Own features across design, implementation, testing, profiling, benchmarking, documentation, and maintenance. Collaborate with compiler, Python, and Rust teams, engage with users on performance and correctness, and improve developer productivity through diagnostics, tooling, and CI integration.

Technical lead individual contributor who architects and delivers complex cross-team, customer-facing product initiatives. Partners with Product, Design, and Data to translate ambiguous problems into scalable solutions, raise engineering standards through code review and mentorship, address technical debt and performance, and influence roadmap and technical strategy.

As a Senior Software Engineer, you will lead feature design and implementation, mentor engineers, and serve as a technical advisor to clients while ensuring best practices are established.

The Senior Software Engineer will design, code, test, and release software, ensuring reliability and scalability while collaborating with a cross-functional team.

As a Staff Software Engineer, you will lead the architectural evolution of Xometry's core services within the Siemens ecosystem, focusing on integrating AI and enhancing platform scalability. You will mentor teams, establish engineering standards, and guide strategic initiatives to improve DFM and procurement processes.

The Senior Software Engineer develops, maintains, and enhances diverse software systems, collaborates on team projects, tests software components, and resolves issues while ensuring adherence to design requirements.

Lead design and delivery of the public-facing API platform and ingestion services. Build scalable, reliable real-time distributed systems, collaborate with product and data teams, review designs and code, address technical debt, take operational ownership using observability tools, and mentor engineers.

The Senior Backend Engineer at Perpay will design RESTful APIs, improve backend system reliability, and lead technical projects while mentoring team members. Collaboration with product stakeholders is essential for effective backend solutions.

As a Senior Software Engineer, you will enhance Nova's query execution engine and cloud infrastructure while focusing on improving performance, cost-efficiency, and reliability in a distributed data system.

The Sr Software Developer will design, develop, and support systems in the PKI and real-time messaging ecosystem, provide mentorship, collaborate with customers, and validate solutions. They will analyze system factors and resolve production issues while leading design review meetings and coordinating project activities.

The Senior Software Development Engineer will develop and maintain backend solutions for the Arena PLM application, focusing on high-quality code and innovative cloud technologies, and lead technical collaboration efforts.

Join the Web Product team to develop features for Claude.ai, transform user interaction, and enhance AI collaboration. Full-stack work across frontend and backend.

Responsible for designing, developing, debugging, and supporting Design-for-Test software in VLSI Design Automation.

The Senior Software Engineer at Lyft will architect solutions, write maintainable code, lead projects, and collaborate across teams to resolve technical challenges, focusing on enhancing the rideshare experience.

Develop and enhance networking systems software (including Junos/Junos Evolved) for Campus & Branch products. Design, code, test, and integrate software for operating systems, networking protocols, and forwarding ASICs; debug issues; collaborate with product, architects, and stakeholders to deliver reliable networking solutions.

The Senior Software Engineer will enhance developer productivity through AI-assisted tools, automate workflows, and integrate new systems while collaborating for feedback and improvements.

Design and implement a high-performance, low-latency Java OLAP calculation engine core. Collaborate with product to translate designs into executable criteria, ensure correctness and performance, communicate technical concepts, and advocate for quality and robust JVM-level tuning and language/design improvements.

Lead the design and implementation of Viant's ad technology platform, mentoring engineers and collaborating with cross-functional teams to enhance product features and ensure operational sustainability.

The Senior Java Full Stack Engineer will design, develop, and maintain secure internal tools, focusing on backend development in Java while contributing to frontend development in React, collaborating with teams to improve operational efficiency.

Lead architecture, design, and delivery of large-scale, compliant billing and consumer-facing platform systems. Translate ambiguous problems into technical plans, improve tooling and workflows, guide architectural decisions, mentor engineers, and partner cross-functionally to shape platform strategy and ensure reliability, scalability, and performance.

Design, develop, test, deploy, and maintain backend systems; provide operational leadership; mentor engineers; and collaborate to create scalable solutions.