Top Senior Full-Stack Engineer Jobs in Austin, TX

Lead end-to-end feature development across API (Node.js), web (React/Next.js), and mobile (React Native). Scope, design, implement, test, and ship production systems; drive architecture and scalability for an AWS-backed, real-time IoT fleet; partner with product and raise engineering standards.

Lead end-to-end design and implementation of a multi-tenant Azure SaaS security platform using Django REST and React/Next.js. Build scalable ingestion APIs, optimize PostgreSQL, integrate SIEM/EDR and AI model endpoints, implement security-by-design, maintain CI/CD pipelines, and mentor engineers while ensuring compliance and high performance.

Design, build, and maintain backend services in TypeScript for millions of users; develop full‑stack features with React/React Native; participate in code reviews; provide technical leadership, mentorship, and architecture guidance; collaborate with PM and design; use monitoring/metrics and Agile practices to deliver scalable, user-focused products.

Design, build, and maintain scalable full‑stack systems and APIs. Extend products to handle large datasets, reporting, and third‑party/Microsoft Graph integrations. Write secure, testable production code, participate in code reviews, troubleshoot performance issues, and mentor engineers. Own features end‑to‑end from design through deployment using CI/CD and DevOps practices in a distributed team.

Build and ship full-stack features for North, develop autonomous agents that access sensitive enterprise data, productionize state-of-the-art models, write minimal, secure low-resource code, and collaborate with researchers to deploy performant RAG/agentic applications while prioritizing security and user experience.

The Sr. Full Stack Developer will design and build full-stack applications, focusing on AI-powered solutions, and lead code reviews while mentoring junior engineers in the Advanced Technology Center.

Design, architect, and build full-stack web applications and AI-powered solutions integrating LLM APIs, RAG pipelines, vector databases, and agentic frameworks. Lead code reviews, mentor engineers, support PoC engagements, and maintain cloud-native, containerized deployments with CI/CD best practices. Advocate AI-augmented engineering workflows and produce technical documentation for ATC lab environments and customer-facing prototypes.

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.

Lead end-to-end design, development, and delivery of full‑stack features; drive architecture and code reviews; coordinate engineering work, write design docs and tests, and participate in Agile ceremonies. Must have blockchain/crypto experience.

Develop frontend and backend features for Akash Console, build and maintain public APIs and SDKs, implement automated tests and CI/CD, support customers integrating with Akash, participate in community technical discussions, and identify bug fixes and process improvements.

Design, develop, and enhance Oracle Fusion Financials solutions (GL, AP, Cash), build integrations (REST/SOAP, FBDI, OIC), troubleshoot production issues, support financial close processes, migrate or cross-train to Workday, document solutions, and mentor junior staff.

Build end-to-end features in a JS/TS stack, designing scalable backend services and responsive real-time frontends. Improve observability, performance, and reliability, collaborate with product/design, and own full-stack implementation from APIs and data models to UI.

Build and maintain core platform features, expand Infisical PKI/SSH/KMS product lines, collaborate with CTO and engineers, communicate with enterprise customers, and prototype AI applications for secrets management.

Lead and improve engineering practices for a global pricing platform: design and build scalable Java Spring Boot microservices and React frontends, own APIs and data integrations (Kafka, BigQuery), mentor engineers, drive testability, CI/CD, observability, and adoption of AI-assisted development workflows.

As a Senior Fullstack Developer, you will build and maintain moderation and user-safety applications for Bluesky's Trust & Safety team, collaborating with product teams and improving tools based on user feedback.

As a Senior Full Stack Engineer, you'll design and develop custom Shopify applications, integrate solutions, and collaborate with clients to meet their needs.

Lead frontend architecture and implement responsive React/TypeScript web applications and low-latency live video playback. Optimize UI performance, design client-server APIs to cloud microservices, and collaborate with product, design, and backend teams to deliver real-time, high-traffic video features.

The Senior Engineer will develop applications for the UCM system, focusing on fraud prevention in Medicare and Medicaid. Responsibilities include system modernization, migration to cloud solutions, and enhancing performance and interoperability.

As an Operations Reliability Engineer, design and implement automations to eliminate manual tasks in brokerage operations, focusing on efficiency and reliability while collaborating with cross-functional teams.

Lead frontend design and development of web-based dashboards and applications. Build user-facing features, integrate complex backend and ML workflows, develop reusable components, participate in QA/release, and provide technical leadership and mentorship to frontend engineers.

Design, build, test, and maintain scalable web applications. Create responsive UIs with Angular or React (TypeScript), implement Python/Flask backends and RESTful APIs, design relational schemas, troubleshoot production issues, perform code reviews, and mentor junior developers.

Build reusable client-side JavaScript/CSS SDKs and multi-tenant frontend architecture. Develop high-performance React/Next.js applications with Tailwind CSS, implement SSR/SSG/ISR, integrate with REST/GraphQL backends, optimize performance, and support backend data modeling, cloud deployment (AWS/GCP), CI/CD, and production monitoring.

The Senior Fullstack Software Engineer will design, implement, and maintain features for Conveyor's SaaS platform, involving both backend and frontend work, while collaborating closely with team members and mentoring juniors.

Design, build, and maintain AI-powered B2B SaaS products across frontend, backend, and AI. Own projects end-to-end, collaborate with product and design, ensure maintainability, mentor teammates, and inform roadmap and implementation decisions.

Build and ship features for Cohere’s North AI workspace platform, develop autonomous agents that interact with sensitive enterprise data, and deploy highly performant, secure applications in low-resource environments. Collaborate with researchers to productionize advanced AI models and techniques while contributing across the full stack using Python and React.