Websockets Jobs

Experienced backend engineer needed to lead development of TypeScript/Node.js microservices powering a real-time, blockchain-enabled payment network for banks and exchanges on an initial 2–3 month contract with potential extension.

Be the founding backend engineer at Known, architecting scalable TypeScript/Node.js services, real-time communication, and infrastructure to power a consumer AI product at scale.

Work on HYDRA’s operator console to transform real‑time telemetry and routing data into intuitive, low‑code workflows and observability for mission‑critical networking.

Help build HYDRA — the operator console that connects embedded networking firmware to intuitive, low-code dashboards and AI-assisted tooling for resilient edge systems.

Hoplynk is hiring a Full Stack Engineer to build HYDRA’s operator console and APIs, converting realtime telemetry and routing data into intuitive, low-code monitoring and configuration workflows.

Build and scale high-performance web applications and APIs that deliver real-time sensor and video-driven intelligence for Specter’s physical-AI platform.

Software Dev Engineer II to build a mobile shopping app on iOS using React Native, Java, JavaScript and WebSocket connectivity for the Delivery Excellence team in Bellevue.

Senior Full Stack Engineer (Onchain) needed to design and deliver scalable, low-latency backend and frontend systems that integrate multiple blockchains and DeFi protocols for a remote-first crypto exchange.

Senior Front End Engineer needed to craft responsive, accessible, high-performance web and mobile UIs for AI-driven enterprise applications using React and TypeScript.

Pentair seeks an experienced Edge Software Developer to build Go-based IoT middleware and C/C++ device GUIs for embedded Linux systems while leading architecture and cross-team delivery.

Lead the core Unreal and multiplayer systems at Jackbox as Principal Engineer, defining architecture, guiding implementation, and ensuring scalable cross-platform play and session management.

Work on Dataminr’s Human AI Innovation team building full-stack, human-in-the-loop AI tools and production features using Java/Scala/Go/Python and React/TypeScript at scale.

E2B seeks a Product Engineer based in San Francisco to own and scale its Dashboard product, shipping performant Next.js features and shaping the developer experience for large-scale AI infrastructure.

Esri is looking for a Senior Software Development Engineer skilled in Java/Scala to develop scalable web services and geospatial workflow capabilities for ArcGIS Workflow Manager.

A seasoned iOS Engineer is needed to translate Seneca’s robotics, perception, and controls systems into a reliable, high-performance mobile app used by frontline fire professionals.

Anti Capital is seeking a Senior Frontend Engineer to build high-performance, data-driven trading web applications and live visualizations for a latency-sensitive proprietary trading platform.

Senior Full-stack JavaScript Engineer needed to design and deliver scalable frontend and backend features for a fast-growing, venture-backed B2B eCommerce platform.

Work on cloud-native, multitenant warehouse optimization software at Dematic, developing scalable systems that leverage big data and AI to transform supply chains.

Lead Enetpulse integration and the canonical club catalog at an early-stage crypto-native sports platform, owning data pipelines, entity resolution, and operational tooling.

An experienced Android Developer is needed to lead native Android development for a global client, focusing on Kotlin/Java, Jetpack libraries, and modern architecture patterns.

Intetics is looking for a Senior JavaScript Software Engineer to drive full‑stack feature development and improve performance across front‑end and back‑end systems.

Lead frontend engineering for a fast-moving industrial AI SaaS product, shaping architecture, mentoring engineers, and delivering high-quality user experiences in a fully remote North America role.

Experienced full-stack engineer needed to architect and ship an MVP-grade real-time SaaS platform with embedded video and responsive frontend experiences for a US-based remote product team.

Kraken is hiring a Senior Software Engineer (React Native) to architect and ship high-quality mobile features for its Kraken Pro trading platform while influencing technical strategy and mentoring teammates.

Lead frontend engineering for industrial AI control web applications, driving architecture, best practices, and a high-quality user experience in a fully remote North America position.

Lead the technical direction and build the Rust-native backend, blockchain token systems, and AI-powered features as a hands-on CTO/co-founder for a high-impact sports crypto startup.

Develop and secure high-performance Rust APIs for a drone platform that supports public safety operations while working remotely from Texas.

BlackRock’s Aladdin Engineering group is hiring a Front End Engineer to build and maintain React/TypeScript web applications that power investment and trading workflows.

Lead the design and development of secure, performant embedded payments UI components at Notabene, working across web and mobile to support next-generation crypto payment flows.

Atomic Semi is hiring a Frontend Software Engineer to lead frontend development for operator tools and real-time dashboards powering a small, fast semiconductor fab.

Barclays seeks a UI Software Engineer to design and deliver high-performance, real-time trading interfaces for securitized products, collaborating directly with front-office stakeholders.

NODA is hiring a UI Engineer to build high-performance WebGL and Deck.gl-based mission command interfaces for real-time autonomous vehicle orchestration.

Senior full-stack engineer needed to prototype and build scalable web applications using TypeScript and Node.js for a mission-driven AI research and product team.

Experienced front-end engineer needed to build and optimize low-latency, real-time React + TypeScript trading UIs at Point72.

Join Cofounder as a Fullstack Engineer - Cofounder to build the core autonomous agent platform, shipping full-stack features across integrations, flows, and UX with high ownership.

Yeet is hiring a Backend Engineer to help scale its Python microservices and build high-throughput, fault-tolerant streaming and ingestion systems for a real-time observability platform.