Top Tech Jobs & Startup Jobs in Seattle, WA

Develop metaverse software, including Unity and Unreal Engine environments, asset integration, and backend systems that manage virtual-world state, users, and transactions. Collaborate with other teams to integrate metaverse products into the broader platform. The role involves Linux development, blockchain and smart-contract learning, and potentially Rust, Dart, TypeScript, WebGL, AR, OpenGL, GCP, and Kubernetes.

Build and deploy rollup smart contracts, including a Preconfirmation Registry, for an Ethereum-based appchain framework. The role involves Solidity development, product design discussions, production engineering, and potential participation in industry events. Candidates should have strong Solidity expertise, EVM knowledge, open-source or reputable-company experience, and familiarity with OP Stack code. Experience with fraud proofs, shared sequencing, modular blockchain products, ZK, and data availability is advantageous.

Lead engineering as CTO or founding engineer for an early-stage crypto company. Own browser extension and backend development, smart contract integrations, cross-chain capabilities, DeFi and wallet primitives, and transaction frameworks. Collaborate on product planning and iterative feature development while providing technical leadership, autonomy, and ownership in a remote team.

Lead and manage the engineering team developing Spire’s core appchain and Layer 2 infrastructure. Drive projects from design through production, establish realistic roadmaps, contribute to Rust infrastructure and Solidity smart contracts, and represent the company at industry events. The role requires deep Solidity or Rust expertise, rollup and L2 development experience, hands-on engineering leadership, production delivery experience, and familiarity with modular blockchain ecosystems, fraud proofs, shared sequencing, zero-knowledge technology, and data availability.

Design blockchain architecture and modular node components, develop blockchain and DeFi protocols, operate servers and blockchain nodes at scale, and modify node software. The role requires proficiency in two specified programming languages, experience with cloud infrastructure and blockchain systems, meaningful open-source contributions, strong self-direction, and availability to work Pacific Time hours.

Maintain backend services in Rust, integrate and maintain the company’s React web presence, build metaverse infrastructure and netcode in .NET within Unity, and develop blockchain integrations for customer transactions. The role requires broad programming knowledge, Linux proficiency, rapid learning, interest in crypto and blockchain development, and the ability to complete complex projects. GCP and Kubernetes experience is advantageous, while netcode, metaverse, game development, and backend service experience are pluses.

Leads a distributed, cross-functional engineering team; establishes development, testing, and deployment practices; partners with leadership and product on roadmaps and prioritization; coaches, evaluates, and develops engineers; supports hiring, performance management, culture building, and delivery of reliable, high-quality systems.

Build and implement the Based Appchain Framework using Go or Rust. Contribute to system and product design discussions, ship engineering projects to production, and represent the company at events, conferences, or podcasts. The role involves working with Ethereum, EVM-based systems, and potentially rollups, shared sequencing, zero-knowledge, and data availability technologies.

Lead a development team building and maintaining a cryptoasset exchange platform using .NET, Node.js, TypeScript, React, and Angular. Translate product outcomes into technical specifications, deliver high-quality features, improve application performance, resolve bugs, and mentor developers. Drive migration to microservices, integrate a new crypto exchange platform, maintain code quality, and apply security and risk-management practices in a fast-changing blockchain environment.

Lead custom analog and mixed-signal IC layout, including ADCs, DACs, RF components, floorplans, and block-level designs. Minimize parasitic effects through matching, noise isolation, and advanced layout techniques. Ensure compliance with process design rules and foundry specifications, collaborate on manufacturing issue resolution, and develop automation scripts for repetitive layout tasks. The role requires Cadence expertise, post-layout simulation experience, and advanced-node experience below 28nm.