Top Senior Software Engineer Jobs

The Staff Software Engineer will develop and execute technical strategies for Cash App Banking, lead architectural decisions, and mentor engineers, focusing on innovative financial solutions.

Hands-on senior engineer responsible for designing, building, and operating a multi-threaded, Linux-based, real-time Java platform for Equity Swaps. Drive architecture, mentor engineers, own core components (including cashflow calculator), operate and tune sharded MongoDB, improve CI/CD and test automation, lead L3 support, and use AI tooling to accelerate the SDLC.

The Senior Backend Software Engineer develops secure APIs utilizing Kensho's AI capabilities, collaborates across teams, and mentors colleagues while managing project deadlines and deliverables.

As a Senior Backend Engineer, you will develop APIs, collaborate with various teams, and manage project priorities while ensuring communication is efficient and inclusive.

As a Senior Full-Stack Software Engineer, you will build AI-centric web applications in TypeScript, manage project priorities, and make technology decisions while collaborating with Product and Design teams.

Design, build, and scale backend services, APIs, and full-stack features powering patient booking, clinician routing, logistics, and device integrations. Solve scheduling, dispatch, safety, and clinical-error prevention challenges, integrate external health systems and medical devices, and own projects 0→1 while collaborating with product, data, ops, and clinical teams.

Design and implement large-scale routing, scheduling, forecasting, and simulation systems to optimize clinician dispatch and capacity. Prototype and productionize optimization and predictive models, collaborate with product and ops, and own end-to-end projects in a distributed environment.

Build and scale backend and full-stack systems powering patient booking, clinician routing, logistics, and device integrations. Own 0->1 projects, design APIs and data models, integrate external health systems and medical devices, solve operational challenges at scale, and collaborate with product, data, ops, and clinical teams to deliver secure, reliable production software.

Develops, maintains, and enhances complex modeling and simulation software. Design, code, debug, test, and integrate software; analyze user requirements; resolve defects; and improve documentation and development processes.

Designs, develops, tests, debugs, and integrates complex modeling and simulation software. Analyzes user requirements, implements new features, resolves defects, and improves development processes while handling large datasets and real-time processing.

Designs, develops, debugs, tests, integrates, and maintains complex modeling and simulation software. Analyzes user requirements into software designs, resolves defects, documents test results, recommends process improvements, and builds data queries and system integrations.

Design and build distributed services, data pipelines, APIs, and integrations for GPU capacity planning, reservations, allocation, forecasting, and utilization. Establish unified capacity models across cloud providers and regions, automate operational workflows, improve observability and reliability, and resolve complex production issues. Lead technical design reviews, set engineering standards, mentor engineers, and collaborate cross-functionally on business-critical DGX Cloud infrastructure.

Build simulation and planning systems for complex communications networks. Develop tools that model hypothetical scenarios, vary configurations and assumptions, compare outcomes, surface tradeoffs, and identify risks. Design scalable, reliable backend systems for complex, evolving network states while collaborating across product engineering to integrate capabilities into broader workflows. Responsibilities span system design, implementation, testing, debugging, and operational support.

Build and own full-stack features for campaign management, reporting, audience tooling, and advertising marketplace APIs. Design scalable backend services, optimize low-latency and high-throughput systems, develop lightweight front ends, and work with data stores and APIs. Responsibilities include production ownership, testing, observability, on-call support, technical decisions, stakeholder collaboration, mentoring, and improving engineering standards.

Own and scale React Native mobile applications across multiple custom-branded client apps. Manage features end to end, including requirements, architecture, development, testing, release pipelines, App Store and Google Play submissions, production support, and rollbacks. Debug React Native and native platform issues, contribute to system design and code quality, and collaborate with leadership, clients, and engineering teammates. Help consolidate legacy systems and advance service-based architecture.

Design, build, and maintain full-stack web and mobile applications using modern JavaScript frameworks. Produce high-quality, testable code, participate in architecture and estimation, support existing client sites, follow QA and review practices, and optimize performance and scalability. Collaborate with product managers, UX, and cross-functional teams.

Build and maintain quantum computer management systems, controls infrastructure, and calibration services. Own mission-critical software, collaborate with physicists and hardware engineers, and develop scalable, efficient systems. Responsibilities include debugging, troubleshooting, designing cloud-native microservices and event-driven architectures, working with scientific instrument data, and supporting system performance and operations.

The Software Engineer will architect and enhance billing systems, develop integrations, and collaborate with various teams to ensure effective monetization of OpenAI products.

Design, implement, and test high-throughput, low-latency microservices for Disney's linear advertising platform. Improve observability, translate product stories into tasks, own domain areas, participate in on-call rotations, and build LLM-enabled tooling and agentic workflows. Mentor peers and collaborate across teams to ensure operational metrics, monitoring, and system health.

Early senior engineer who will define technical direction, own core full-stack platform architecture, build AI-powered multi-modal systems (voice, text, email), make infrastructure and tooling decisions, mentor engineers, and work directly with customers to ship solutions quickly.

Build and maintain Go-based backend services and APIs on AWS for agentic AI workflows, including metadata suggestions, automated ownership reassignment, system deprecation, and agent/MCP inventory. Design database schemas and queries in PostgreSQL and MongoDB, integrate asset discovery tooling, map dependencies and user journeys, and refactor legacy code safely. Deliver tested features through Agile/Scrum while collaborating with program and customer teams.

Develops and supports mission-planning software across the full lifecycle in an Agile Scrum environment. Responsibilities include software design, coding, debugging, CI/CD pipeline maintenance, environment deployment, Windows installer creation, integration and automated testing, formal test-event support, troubleshooting, technical customer interaction, documentation, and Scrum Master duties. Work is fully on-site in Hollywood, Maryland, supporting defense systems under a current Secret clearance.

Develop, maintain, test, and enhance complex software systems using Java, Python, and AWS. Responsibilities include algorithm development, large-data processing, real-time systems, automated functional and system testing, software problem resolution, requirements analysis, cloud prototyping, and collaboration with systems engineers in an agile environment.

Develop cloud-native, full-stack software and web applications supporting mission customers. Translate user needs and requirements into maintainable, user-friendly systems; apply continuous integration; collaborate with teammates and users through design documents and whiteboard sessions. Multiple experience levels are available, with work spanning diverse programming languages, cloud-native platforms, databases, and AI/ML technologies.

Develop, test, deploy, and maintain secure Windows applications, services, APIs, and web services for a government technology program. Build solutions using .NET, C#, C++, Python, PowerShell, cloud platforms, CI/CD tools, and containerized environments. Address secure coding, system integration, network and cloud security, automation, documentation, requirements gathering, and authorization artifacts. Collaborate in Agile teams to deliver scalable, mission-critical enterprise systems.