Top Senior Software Engineer Jobs

Designs, develops, tests, documents, and deploys software enhancements for Clinical Solutions products. The role includes front-end development, API and database work, troubleshooting, release preparation, peer reviews, and application support. It mentors developers, promotes engineering standards, coordinates issue resolution with business and IT teams, and contributes to agile planning. The engineer is also expected to apply AI-first development practices and communicate best-practice technical solutions.

Designs, develops, tests, deploys, and maintains C#/.NET applications, APIs, and services. Translates business requirements into scalable technical solutions, troubleshoots complex issues, participates in code reviews, supports CI/CD, and contributes to secure and reliable software delivery. Provides technical guidance and mentorship while collaborating with engineering, product, and business stakeholders. Preferred experience includes AWS, Docker, Kubernetes, event-driven architectures, automated testing, observability, and modernization of legacy .NET applications.

Senior backend engineer responsible for setting technical direction, designing scalable distributed systems, building customer-facing web applications, mentoring engineers, and applying machine learning to large-scale healthcare data. The role requires Java, Scala, or Rust expertise, cloud systems experience, technical design leadership, cross-functional collaboration, and adoption of agentic engineering practices.

Designs, develops, tests, deploys, and maintains software systems across the full development lifecycle. Evaluates customer requirements, determines technical feasibility, coordinates with engineering teams, communicates directly with customers, and provides ongoing support. The role requires an active TS/SCI clearance, five years of experience, and onsite availability as program needs dictate.

Develop and maintain full-stack applications spanning desktop, web, and backend services. Build multi-tier systems, improve production codebases, and lead automated testing across integration, end-to-end, and performance disciplines. Contribute to architecture and technical direction while supporting cloud-native infrastructure and DevOps practices using Kubernetes, Azure, ArgoCD, Istio, Pulumi, and Terraform/OpenTofu.

Own and scale Zoox’s software systems engineering pipeline ecosystem, including static analysis, sanitizers, CI enforcement, dashboards, and quality metrics. Develop tools and infrastructure, transition prototypes into production systems, troubleshoot cross-platform and determinism issues, support checker rollouts, document system designs, and collaborate with engineering leaders on milestones, incident reviews, and long-term software reliability.

Own the technical foundation for cross-platform marketing tools used by internal teams and external partners. Build React Native mobile apps for iOS and Android, responsive web interfaces, dashboards, server-rendered pages, real-time data systems, third-party CRM and marketing integrations, AI-powered features, and device hardware integrations. Manage full-stack development across frontend, APIs, infrastructure, and observability.

The Staff Software Engineer will architect and manage Poshmark's Android app, collaborate with teams, write and review high-quality code, and drive feature development.

Lead the architecture and evolution of managed Kubernetes and cloud-native services. Provide cross-team technical oversight, standardize platform practices, integrate open-source technologies, improve scale, performance, security, and operational efficiency, and mentor engineering teams. The role requires expertise in Kubernetes-based platforms, container runtimes, cloud-native architectures, and Go, Python, or Bash.

Designs secure REST and message-based interfaces, mission applications, microservices, and data-ingestion pipelines for DIA and intelligence environments. Implements automated DevSecOps testing, DISA STIG compliance, telemetry, performance optimization, and secure inter-service communication. Develops backend systems, conducts code reviews, mentors engineers, and integrates enterprise platforms using message brokers, databases, search indexing, containers, and secure cloud environments.

Designs, develops, tests, deploys, and monitors integrations between enterprise software platforms using APIs, middleware, data feeds, and event-driven messaging. Responsibilities include building REST, SOAP, and GraphQL integrations; maintaining pipelines and documentation; conducting end-to-end and negative testing; troubleshooting failures; collaborating with technical teams and API providers; and monitoring production integration health.

Lead architecture and development of scalable, secure, cloud-native software platforms for intelligent networking, distributed data processing, real-time analytics, and AI agent experiences. Design high-volume, low-latency systems; guide software development across the full lifecycle; mentor engineers; and solve complex technical problems involving microservices, network telemetry, cloud infrastructure, and generative AI.

Build and maintain scalable full-stack software across frontend, backend, and cloud infrastructure. Develop APIs, services, and data-intensive applications; contribute to architecture; manage CI/CD, deployments, monitoring, logging, and observability; troubleshoot system-wide issues; own complex features through production; and mentor engineers while collaborating with product, design, and engineering teams.

Architects, builds, and maintains Versal’s RESTful API platform while mentoring and leading backend engineers. The role requires substantial production Scala experience, professional software development experience, Scala web frameworks, REST API design, and relational database expertise. Familiarity with Scalaz, Slick, and Amazon Web Services is preferred.

Architect, build, and maintain Versal’s frontend modules while leading and mentoring a team of JavaScript engineers. The role requires recent large-scale production experience with ReactJS, application or platform architecture expertise, REST API knowledge, and an active GitHub account with at least 50 followers.

The Staff Software Engineer will lead the strategy and development of metrics to evaluate autonomous driving software performance, collaborating across teams and inventing new ML methods for performance evaluation.

As a Senior Software Engineer, you will design metrics, analyze autonomous systems, develop algorithms, and build evaluation dashboards while collaborating with multiple teams to ensure AV quality and performance.

Lead full‑lifecycle development and delivery of high‑quality, performant web/Electron applications for motorsports operations. Debug, maintain, and tune live production systems, collaborate with engineering and trackside teams, mentor junior developers, and provide on‑call support for global events.

Lead full‑stack development of React Native mobile apps and Node.js backends for digital therapeutics. Own architecture, build CI/CD and AWS infrastructure, design multi‑agent AI workflows, mentor engineers, and resolve cross‑cutting production issues.

Serve as the senior technical lead for partner integrations with NinjaTrader APIs. Troubleshoot and resolve complex API and real-time data issues, collaborate with partner engineering and Technical Account Managers, conduct code reviews, build diagnostic tools, set API support quality standards, mentor junior engineers, and translate partner feedback into roadmap improvements.

Lead design and delivery of large, ambiguous frontend and platform initiatives. Shape frontend architecture, standards, and shared patterns; build shared foundations and customer-facing surfaces; improve developer experience, reliability, and performance; partner with design and product; and apply AI-enabled workflows to boost engineering leverage and quality.

Designs, develops, and maintains scalable, secure, performant, and HIPAA-compliant web applications supporting healthcare insurance operations. Responsibilities include translating business needs into technical solutions, contributing to architecture, mentoring developers, conducting code reviews, supporting DevOps and CI/CD practices, participating in cloud modernization, monitoring application performance and security, documenting systems, and providing on-call support.

Design, develop, test, and maintain scalable backend and frontend software. Lead automation of deployments, collaborate with cross-functional teams, troubleshoot production issues, write documentation, and drive continuous improvement of development and delivery processes.

Own and build Headways experimentation platform: assignment, exposure, identity resolution, feature flags, and data pipelines. Drive technical direction, reliability, and company-wide experimentation practices, integrate AI for diagnostics, and enable market-level tests across teams.

Lead and set technical strategy for the Order Platform powering post-checkout flows (orders, captures, refunds, settlement). Design and ship highly available backend systems, own reliability/operational practices, mentor engineers, collaborate cross-functionally, and drive long-term technical decisions and execution plans.