Top Software Engineer Jobs in Las Vegas, NV

Senior backend engineer responsible for designing and implementing new features, scaling and optimizing the platform, improving Postgres and Elasticsearch performance, fine-tuning LLMs, and making architectural decisions. Collaborate with engineering team, take ownership of features, write performant, maintainable code, and help shape product and infrastructure for data-intensive applications (NLP, search, indexing).

Build and maintain scalable financial data infrastructure, including ingestion, validation, normalization, and integrations. Develop systems that calculate portfolio performance metrics efficiently across high-volume datasets, improve reliability and observability, and support distributed processing. Create internal tools, dashboards, reusable schemas, asset data feeds, and self-service analytics capabilities. Collaborate cross-functionally to expand market-data coverage, support B2B integrations, and strengthen operational resilience.

Build and maintain full‑stack TypeScript web applications, design RESTful APIs and microservices, optimize frontend and backend performance, write tests, participate across the development lifecycle, perform code reviews, and collaborate with product and design to ship scalable travel‑management features.

Lead and mentor a team of engineers while contributing hands-on to complex features. Define architecture, drive development best practices, conduct code reviews, coordinate cross-functional requirements, and ensure timely delivery of high-quality ecommerce marketplace software.

Develops, tests, deploys, and maintains software applications, cloud-based solutions, and mobile applications. Responsibilities include application audits, automated testing, quality assurance, documentation, cloud-stack integration, storage services, API integration, troubleshooting, and post-release support. Collaborates with project managers, analysts, and developers to define requirements and deliver optimized solutions for web and mobile platforms.

Full‑stack product engineer role with backend emphasis: build scalable Node.js services, develop React + TypeScript UIs (React Router v7), design APIs (tRPC/OpenAPI), optimize PostgreSQL queries and data pipelines, improve observability and infrastructure, write well‑tested code, and contribute to architecture and engineering practices in a fintech product.

Define architecture and technical direction for Catalyst’s distributed data platform, including messaging, state management, reconciliation, streaming, storage, CI/CD, and Kubernetes operations. Build Go and Python frameworks, improve reliability and SLOs, lead incident response, maintain secure dependency and artifact delivery, and develop infrastructure automation. Collaborate across teams and with customers, review designs and code, establish engineering standards, and travel internationally up to 25% to support mission-critical deployments.

Build and scale high-performance iOS and Android apps with Expo/React Native. Implement native integrations, smooth UIs and animations, automated tests, performance fixes, and collaborate with backend, design, and product teams using AI-assisted workflows.

Technical leader designing and implementing backend features for a FHIR-based healthcare data platform. Owns high-level design, microservices, data pipelines, CI/CD, cloud deployments, and clinical reasoning components (dQM/CQL). Guides customer implementations, resolves complex technical challenges, and mentors junior developers to uphold coding and architecture standards.

Design and build scalable native iOS and Android features using Swift and Kotlin. Integrate with backend services, optimize performance, write unit tests, maintain code quality, and lead end-to-end delivery of mobile product modules.