Top Senior Software Engineer Jobs

Design, develop, and enhance scalable agentic software solutions in a cloud-native environment. Build backend services and RESTful APIs using Java, AWS, Kafka, Elasticsearch, and container technologies. Contribute to architecture, event-driven systems, security, reliability, code quality, troubleshooting, and operational excellence while collaborating across engineering teams.

Develops, maintains, tests, and enhances complex software systems, including analytics, algorithms, large-scale data processing, real-time systems, and business information systems. Reviews software components, resolves defects, documents test results, and contributes to system design, requirements analysis, software reuse, and COTS/GOTS decisions. Required technologies include Java, Spring Boot, Docker, Kubernetes, and GitLab CI/CD.

Leads backend development for scalable .NET applications, APIs, integrations, and databases supporting transportation and logistics operations. Designs Azure-based systems, messaging workflows, and SQL solutions; owns work from concept through production; applies security and data protection practices; and provides technical leadership through architecture guidance, code reviews, mentoring, and cross-functional collaboration.

Design, develop, test, and deploy cloud-hosted distributed web applications. Contribute to architecture, improve engineering practices and CI/CD, collaborate with cross-functional Agile teams, clarify requirements with stakeholders, and deliver user-focused solutions.

Leads a software engineering team developing, testing, documenting, and supporting Windows-based medical device software. Responsibilities include Agile work assignment and tracking, requirements verification, regulatory-compliant documentation, stakeholder communication, process improvement, mentoring engineers, and design reviews. The role requires C# and C++ development, medical device software experience, IEC 62304 and FDA guidance compliance, and cross-functional collaboration.

Build and ship Tubi’s Cobalt-based native runtime for connected TV apps. Responsibilities include maintaining Starboard platform integrations, developing C++ and Rust modules with safe FFI, optimizing startup and memory performance, debugging Android hardware, managing upstream updates and security patches, supporting media pipelines, building CI and developer tooling, collaborating with device partners, and mentoring engineers.

Design, develop, and deploy cloud-native applications in a distributed environment. Collaborate with stakeholders and Agile and DevOps teams, contribute to architecture decisions, improve delivery processes, and support high-quality software development. The role requires experience with JavaScript or TypeScript, Java and Spring Boot, SQL, cloud platforms, CI, testing, monitoring, logging, Agile practices, and tools such as Docker, Kubernetes, and AWS.

Leads software development and coaches engineers while driving adoption of AI-assisted coding, agentic workflows, prompt and context engineering, and AI governance. Reviews architecture, requirements, code, testing, security, resiliency, and production changes. Establishes controls for AI-generated output in a regulated banking environment, maintains shared AI development assets, improves engineering productivity, and communicates technical progress and risks to stakeholders.

Design and build highly scalable, low-latency backend systems, APIs, microservices, and infrastructure serving millions of users. Collaborate with product, infrastructure, and data teams, make architectural decisions, mentor engineers, drive cross-team projects, and improve systems handling high request volumes. Work with Java, relational databases, cloud infrastructure, Kubernetes, CI/CD, infrastructure as code, caching, and messaging technologies.

Build and scale high-quality frontend features for a large gaming platform serving more than 100 million users. Develop primarily with React in an Electron application, collaborate with leadership and the gaming community, and ship features rapidly. Own complex features end to end, optimize production performance, use profiling tools, and measure outcomes through A/B testing and usage metrics. The role is based in New York City with five days per week in the office.

Leads the design, development, integration, modernization, and support of enterprise healthcare applications and platforms. Develops SQL Server databases, healthcare EDI/X12 integrations, Azure APIs, and Python/Django applications. Provides technical leadership and mentorship, reviews architecture and code, resolves production issues, supports interoperability and automation, and coordinates deployments and operational support. Collaborates with stakeholders, vendors, and IT leadership while ensuring HIPAA, security, and regulatory compliance.

Design and develop scalable cloud-based backend architectures for PSA’s consumer-facing Set Registry platform. Own features through architecture, implementation, testing, deployment, and production release. Build APIs for web and mobile applications, improve databases and existing applications, troubleshoot complex systems, and collaborate with product and engineering teams. Contribute to technical design reviews, documentation, monitoring, security practices, and automated testing.

Define architecture and metrics for autonomous driving evaluation, lead cross-functional integration across autonomy and simulation teams, develop statistical and machine learning methods, analyze large-scale time-series data, manage evaluation KPIs and release gates, and communicate safety and readiness insights through dashboards and stakeholder presentations.

Design, build, and operate billing microservices for metering, subscriptions, invoicing, payments, and financial workflows. Lead projects end-to-end, ensure financial correctness and reliability, improve observability, investigate incidents, and collaborate with Product, Finance, and other teams to deliver scalable billing infrastructure.

Build and operate production software for active clinical trials, including clinical-system integrations, trial data flows, site activation, monitoring, and signal detection. Design AI-native agents and pipelines with auditability, provenance tracking, and human review in regulated GxP environments. Own multi-quarter technical initiatives, collaborate with clinical, regulatory, QA, data, and infrastructure teams, mentor engineers, and improve validated software delivery workflows.

Lead development of a Windows Client Connector Agent, designing service-layer, UI, RPC, session, data, and telemetry components. Diagnose production crashes, race conditions, lifetime bugs, synchronization issues, and reliability problems in long-running Windows services. Manage VDI session and tunneling workflows, review code, improve engineering quality, and mentor developers. The role also involves maintaining enterprise endpoint software and applying Windows systems programming expertise to secure connectivity products.

Design and build backend services, APIs, and full-stack features that power patient booking, clinician routing, logistics, and device integrations. Own projects 0→1, solve scheduling/dispatch challenges, integrate external health systems, and collaborate with product, data, ops, and clinical teams to ship reliable, secure healthcare software.

Build and scale backend and full-stack systems powering patient booking, clinician routing, logistics, and device integrations. Design APIs, data models, and services, solve scheduling/dispatch challenges, integrate external health systems, and own projects from 0->1 while collaborating with product, data, ops, and clinical teams.

Build and own backend product features for Remitly Business, including services, APIs, data models, and durable money-movement workflows. Develop scalable Go systems using Temporal, ensuring idempotency, observability, ledger accuracy, reconciliation, security, and compliance. Partner with Product, Design, Analytics, Compliance, Infrastructure, and Operations to deliver features end to end. Contribute to roadmaps, technical reviews, AI-assisted development, architecture decisions, interviews, and team growth.

Lead high-impact technical initiatives across Acquisition Engineering, spanning customer acquisition, onboarding, activation, and adoption. Set architecture and platform direction, improve reliability and data quality, partner across engineering and go-to-market teams, and translate ambiguous business opportunities into scalable systems. Mentor senior engineers, influence technical strategy without direct authority, improve delivery practices, and apply AI-forward approaches to customer experiences, internal tools, and engineering workflows.

Lead high-impact technical initiatives across the customer acquisition funnel, from first touch through onboarding and adoption. Set architecture, platform, reliability, and data-quality direction across teams; improve customer and operator experiences; drive secure, reliable delivery; mentor engineers; and influence product, engineering, and business stakeholders. The role requires hands-on technical leadership across large-scale backend or full-stack systems and an AI-forward approach.

Staff Software Engineer leading cross-team technical initiatives across customer acquisition, onboarding, activation, and adoption. Responsibilities include setting architecture and reliability direction, improving cross-functional systems and customer experiences, mentoring engineers, driving operational excellence, and translating ambiguous business opportunities into scalable solutions. The role requires influencing across teams without direct authority and connecting engineering investments to growth and operational outcomes.

Design, build, and own scalable multi-tenant SaaS applications across frontend, backend, and data layers. Improve system architecture, performance, reliability, and testing practices. Integrate AI-assisted tools, mentor engineers, conduct code reviews, and collaborate with Product and Design to deliver intuitive, production-grade software.

Leads end-to-end development of consumer and business-facing web products, with a focus on backend architecture, performance, accessibility, APIs, and reliable user experiences. Drives technical direction for complex initiatives, mentors engineers, shapes engineering standards and tooling, collaborates with product and design teams, and contributes to infrastructure and testing strategies.

Lead a backend-focused software engineering squad building C#/.NET microservices for CPI’s Azure-based learning platform. Own technical direction, architecture, delivery, service reliability, incident response, observability, secure coding, and continuous improvement. Remain hands-on with backend development while contributing to React features, mentor engineers, lead design and code reviews, and promote AI-assisted development. Partner with product and engineering leadership to deliver scalable, maintainable services through frequent, low-risk deployments.