Top Senior Software Engineer Jobs

Build and maintain full-stack features, data pipelines, and cloud infrastructure for large-scale ad management and analytics. Integrate with advertising platform APIs, apply ML/NLP for forecasting and recommendations, collaborate with product and marketing teams, and use AI coding tools to accelerate development.

Design, build, and maintain scalable backend services and APIs for millions of users. Collaborate with product and UX, implement automated testing, participate in on-call incident management, and mentor teammates while delivering complex distributed-system projects.

Architect and implement scalable customer-facing and back-office systems across frontend and backend. Build REST APIs, web and mobile apps, deploy on AWS, define engineering best practices, mentor junior engineers, and incorporate AI-assisted development to improve productivity and product quality.

Technical lead for the Apps & Behaviors platform powering SmartApps and automations. Design and build scalable, reliable AWS-based services, own features end-to-end (code through infrastructure and releases), improve reliability/observability, apply security-conscious design, adopt AI-assisted engineering practices, and mentor other engineers.

Build and maintain core platform systems powering Astro's public API, authentication, billing, and alerting. Design scalable backend services, collaborate with product and frontend teams, improve platform reliability, and contribute to architecture and operational practices.

Design, build, and scale GraphQL APIs, low-latency gRPC services, and SQL-backed wagering flows for online casino products. Own complex technical problems end-to-end, improve production performance and observability (DataDog), mentor engineers, and deliver integrations with game providers while operating services on Kubernetes and participating in on-call rotations.

Lead design and implementation of scalable APIs and agent communication layers for an AI-agent driven advertising marketplace. Build high-throughput backend systems, integrate agent frameworks and adtech partners, drive architecture for authentication and protocols, mentor engineers, and prototype agent communication patterns while collaborating with product and design.

Build and own end-to-end, production-grade full‑stack features across backend, frontend, data pipelines, and infrastructure. Collaborate with stakeholders to translate business problems into shipped software, drive cross-team initiatives, and improve tooling and code quality. Use AI coding tools daily to accelerate development and maintain reliability for customer-facing products.

Lead end-to-end design, development, and quality of enterprise cloud solutions. Estimate costs, define quality criteria, implement complex systems, manage engineering processes, risks, and dependencies, and mentor teams. Serve as technical lead across large, cross-functional projects to deliver measurable, user-centric healthcare technology solutions.

Lead backend development for ticketing products: design, build, test, deploy, monitor Java-based services on AWS. Drive code quality, mentor engineers, own projects end-to-end, collaborate with product and TPMs, and improve performance and scalability.

Design, build, deploy, and operate production-grade backend services for healthcare intelligence. Own service architecture, APIs, observability, reliability, security, CI/CD, and cloud-native platform integrations to support AI-enabled workflows and scalable production systems.

Lead design and implementation of cloud-based backend systems for global antenna scheduling, customer-facing APIs, billing/metering, and orchestration. Build reliable, scalable control and data planes across cloud and on-prem, collaborate with customers and operations, and enable secure TT&C and payload data transfer.

The Staff Backend Software Engineer will lead technical direction, design and implement backend systems, and mentor engineers while driving technical excellence.

Design, implement, and operate scalable, secure backend data automation services for a cloud-based SaaS/PaaS platform. Architect APIs and asynchronous pipelines, develop and test production-quality Python services, integrate cross-service features, mentor engineers, support high-availability operation and on-call rotations, and collaborate with support and user teams to document and resolve complex issues.

The role involves designing, developing, and delivering connected fleet solutions, while participating in code reviews, automation, and documentation. Requires full-stack development skills and experience with cloud services.

As a Senior Software Engineer on the Web Registration team, you'll build and maintain core functionalities for the user registration flow, enhance service stability, and integrate analytics tools while collaborating with product and design teams.

Design and deliver secure, scalable cloud-native software in small agile teams. Influence architecture and technical direction, set engineering standards, mentor engineers, and work directly with customers to solve complex problems using modern cloud, CI/CD, and DevSecOps practices.

Lead frontend design and delivery of data-intensive, real-time generative-AI user experiences. Build interactive dashboards, streaming UX, scalable state, and integrations with backend systems; mentor engineers and collaborate with product, design, and AI teams to improve latency, accuracy, and user trust.

Design, build, and maintain large-scale data infrastructure and backend systems to power ROI measurement and automation. Collaborate with data scientists, health economists, and product to automate claims ingestion, standardize pipelines, expand targeted enrollment, integrate AI-driven solutions, and improve system maintainability, availability, and performance. Mentor junior engineers and contribute to architecture and deployment practices.

Troubleshoot and resolve complex system-level issues across kernel-to-application layers, optimize OS performance, maintain OS-related software components, collaborate with hardware team for new platform delivery, and apply deep Linux kernel and networking expertise.

Design and own an immutable, event-oriented accounts and ledgering system for RCM. Build idempotent posting/adjustment pipelines, reconcile billed charges, remittances, and bank deposits, ensure report consistency, operate money-critical Postgres systems, and set observability, security, and operational standards while mentoring senior engineers.

Build and maintain cloud-native liquidity management platform features using Azure and .NET. Implement CI/CD, observability, and rigorous testing. Mentor engineers, drive technical design, participate in on-call rotation, and improve team practices to deliver scalable, resilient treasury solutions.

Lead the design, development, and delivery of complex features for the Hyperlift Stars Platform. Responsibilities include setting technical direction, architectural guidance, and improving the efficiency and reliability of data-intensive software systems.

Design, build, and maintain scalable backend pricing services, own end-to-end SDLC, collaborate with Product and Data, lead architectural decisions, mentor engineers, troubleshoot production issues, optimize performance and CI/CD, and ensure pricing systems meet compliance and SLA targets.

Design, implement, and optimize Elasticsearch core storage and query engine components for observability workloads. Drive architectural improvements, resolve performance bottlenecks in indexing and serialization, optimize data layouts for object storage, lead cross-organizational initiatives, mentor engineers, triage community issues, and write idiomatic modern Java in a distributed team.