Top Senior Software Engineer Jobs

Build and operate reliable backend systems and APIs for high-traffic products. Responsibilities include distributed system design, data modeling, service architecture, performance tuning, automated testing, observability, incident management, and end-to-end feature delivery. The role partners with Product and Design, makes architecture decisions, mentors engineers, and applies AI-assisted development tools responsibly.

Design and build backend systems and infrastructure to ingest, index, retrieve, and serve financial data and enterprise knowledge; develop secure integrations and agentic workflows; ensure provenance, reliability, observability, and performance; collaborate with customers and cross-functional teams to move AI-native products from prototype to production.

Designs, develops, and maintains backend services and data pipelines for a scalable data platform. Writes production Python and SQL, architects storage and processing solutions, leads technical decisions and cross-functional initiatives, troubleshoots production issues, reviews code, mentors engineers, and collaborates with data science, product, and engineering stakeholders.

Develop and release Esri GIS, remote sensing, photogrammetry, and imagery-analysis software for defense and intelligence users. Build image-processing capabilities, algorithms, APIs, cloud-friendly desktop and enterprise applications, and tools supporting multiple imagery modalities and data formats. Collaborate with developers and product engineers to integrate libraries into ArcGIS, solve complex design problems, and improve user experiences. Senior team members may lead development projects and mentor junior developers.

Build and own end-to-end features for web applications and cloud services delivering generative AI capabilities. Responsibilities include designing, specifying, developing, testing, launching, and optimizing software; collaborating with product, design, marketing, data science, and engineering teams; prototyping solutions; and establishing modern application and cloud development best practices.

Develop and maintain open-source web application platforms, including requirements analysis, software design, coding, testing, code review, documentation, and application support. Collaborate with stakeholders, troubleshoot technical issues, evaluate design alternatives, mentor interns and onboarding staff, provide technical leadership, and participate in hiring. The role requires flexibility across full-stack development, with possible backend or frontend specialization.

Build data transforms and analyst tools for text/JSON/DB/XML; gather requirements from operators; improve application performance; manage mission-critical servers; work with Python, dataframes, SQL, Git/GitLab, and modern frontend frameworks to support CNO/CNE mission needs.

As a Senior Backend Software Engineer at Archy, you will lead major product updates, ensuring system stability and scalability, while collaborating with cross-functional teams to enhance dental practice management solutions.

Design, architect, develop, test, and support scalable full-stack applications for a data catalog platform. Own features end to end, contribute to technical strategy and roadmaps, ensure operational excellence, collaborate across distributed teams, and mentor engineers. Build multi-tenant systems supporting high data volumes and near-real-time analytics while applying AI-assisted development practices.

Build and own foundational platform services, APIs, authentication and authorization systems, data infrastructure, and models powering Pave’s compensation platform. Design generalized solutions for cross-product needs, develop data-intensive applications and pipelines, lead complex technical initiatives across stakeholders, and deliver scalable, maintainable software in a fast-paced environment.

Design, build, and maintain AI-first remote service software for field engineers: full-stack front-end and back-end development, APIs/microservices, CI/CD and automated testing, security and compliance for remote access, troubleshoot production issues, and evaluate AI tools to accelerate delivery while collaborating with cross-functional teams.

Designs, develops, integrates, and tests mission-critical ground software, including cloud backends and operator-facing frontend tools. Supports software systems engineering, architecture, distributed-system troubleshooting, stakeholder meetings, technical presentations, and integration with external partners. The engineer develops scalable architectures, manages tasking across program schedules, mentors team members, and may support satellite constellation ground systems, mission planning, CI/CD, secure-by-design architectures, and hardware-in-the-loop testing.

Design and implement scalable, resilient Java backend services and APIs for logistics (order fulfillment, shipment tracking, fleet management). Build event-driven pipelines, refactor monoliths to microservices, optimize architecture for peak loads, implement CI/CD and cloud deployments, ensure security and regulatory compliance, mentor developers, and maintain observability for mission-critical logistics systems.

As a Backend Software Engineer, you will design and implement scalable services, focusing on API design and system architecture while mentoring team members.

As a Software Integration Engineer, you'll develop and integrate complex software systems for space operations, drive technical excellence, and mentor engineers.

Design, implement, document, and maintain front- and back-end systems for high-traffic applications; decompose monoliths; set technical standards; build novel systems; mentor junior/mid engineers; ensure automated processes run; take substantial features from concept to production; communicate with stakeholders.

As a Senior Software Engineer, you'll design, develop, and maintain full-stack applications, utilizing TypeScript and modern frameworks while collaborating cross-functionally to enhance user experience and performance.

Design, build, and deploy backend services for creative tools. Integrate with AWS, ensuring scalable and secure Python code for event processing and APIs.

Develop and maintain a production web-based user interface using AngularJS that integrates multiple engineering analysis tools. Work in an Agile/SCRUM team to deliver continuous updates, troubleshoot issues, leverage a CMS for expanded capabilities, and collaborate with cross-functional engineers and project managers.

Develop server-side code and RESTful interfaces for a web-based UI integrating complex engineering analysis tools. Work in an Agile team, design algorithms, write SQL, ensure basic application security, troubleshoot, and collaborate with engineers and project managers to deliver maintainable, scalable solutions.

Own end-to-end supplier integrations: design, implement, test, and monitor third-party APIs. Ship weekly, improve tooling and abstractions, ensure reliability, and mentor peers. Use AI-assisted workflows to speed integration development.

Own and advance Yahoo’s enterprise Node.js development environment, including runtimes, packages, container images, internal integrations, and CI/CD workflows. Manage runtime lifecycles, security updates, dependencies, releases, testing, automation, and troubleshooting. Support GitHub Enterprise and GitLab Enterprise while integrating AI programming tools to improve developer productivity. Partner across engineering and security teams, and document platform changes, migrations, and deprecations.

Build scalable simulation and planning systems for complex communications networks. Model hypothetical scenarios, allow users to vary configurations and assumptions, evaluate impacts, compare tradeoffs, identify risks, and integrate simulation capabilities into broader product workflows. The role involves full-stack engineering across design, development, testing, and operations, with emphasis on distributed systems, algorithms, network modeling, and computational reliability.

Guide the technical direction of commerce experiences in the Venmo iOS app. Coordinate engineers, define technical tasks, improve engineering processes, balance quality and delivery priorities, establish generalized solutions, raise engineering standards, and represent PayPal with partners, customers, and industry organizations.

Leads iOS engineering projects, coordinates technical work, makes architecture and engineering-rigor decisions, improves processes, and represents PayPal with external partners. Develops and maintains large-scale consumer mobile applications using Swift, asynchronous programming, GraphQL, and REST APIs. Mentors engineers and promotes testing, design patterns, and maintainable software practices.