USASoftware Engineer - SDK
1 мес. назад
60k–300k USD / yearUSASeniorRemote
javascripttypescriptpythonswiftandroidrustelixirc
Develop and maintain SDKs for real-time semantic search layer supporting multiple platforms and languages.
Обязанности
- Own the architecture and evolution of SDKs across multiple programming languages and platforms.
- Design and maintain safe, ergonomic bindings around our Rust core.
- Build and improve FFI layers, packaging systems, release pipelines, versioning strategies, and developer tooling.
- Ensure consistent APIs and behavior across all supported SDKs while respecting platform-specific constraints.
- Push performance boundaries across memory usage, startup latency, binary size, and runtime efficiency.
- Work directly with customers to debug production issues across diverse environments and operating systems.
- Establish engineering standards for testing, compatibility, benchmarking, observability, and long-term maintainability.
- Help shape how developers experience from the first npm install to production deployment.
Требования
- Deep systems engineering experience with strong fundamentals in performance, memory management, concurrency, and low-level debugging.
- Significant experience in Rust and building production systems that interface with multiple programming languages.
- Proven track record shipping SDKs, libraries, runtimes, databases, or developer infrastructure at massive scale.
- Experience building products that have run on hundreds of millions to billions of devices, users, or installations.
- Comfortable moving across language ecosystems and technology stacks without being constrained to a single environment.
- Strong understanding of FFI, language bindings, package distribution, build systems, and cross-platform development.
- Experience with one or more of: JavaScript/TypeScript, Python, Swift, Kotlin/Android, C/C++, Elixir, or other systems languages.
- Ability to operate with high ownership in ambiguous environments and make pragmatic engineering tradeoffs.
Будет плюсом
- Experience building mobile SDKs or embedded/on-device AI infrastructure.
- Experience with WebAssembly, native mobile runtimes, edge environments, or browser internals.
- Background in search, databases, AI infrastructure, compilers, or developer tooling.
- Experience maintaining highly adopted open-source libraries or SDKs.
- Prior experience as a Staff+ engineer responsible for platform or SDK strategy across an organization.
Другое
- We built because Voice AI breaks when retrieval is slow. Most retrieval infrastructure was not built for real-time reasoning. It adds latency, breaks context mid-conversation, and becomes the bottleneck just as an AI product needs to feel instant.
- is the real-time semantic search layer for conversational AI. We deliver sub-10ms retrieval directly in the browser, at the edge, on-device, or in the cloud, without making teams stitch together a slow retrieval stack.
- We are backed by YC and run in production for teams building serious AI products. is deployed across 100+ countries, serves 10M+ of real-time voice minutes, supports enterprises serving 3000+ of their own end customers, and has 390K+ package installs.
- The SDKs are how every one of those developers meets . They are the first thing a team touches, the surface that has to feel instant on every platform, and the layer where our Rust engine becomes real code running inside someone else's product.
- We are looking for a Senior or Staff SDK Engineer to own how ships across every developer surface: JavaScript/TypeScript, Python, Swift, Android, Elixir, C, and the Rust core they all bind to.
- This is not a greenfield role. You will work on live SDKs that customers depend on in production from day one: shrinking bundle size, lowering cold-start and query latency, tightening cross-platform parity, improving developer ergonomics, and making integration effortless across browsers, servers, mobile devices, edge runtimes, and embedded environments.
- When milliseconds and correctness are both part of the product, and your code runs inside someone else's application, your work defines whether teams trust .
- Develop a deep understanding of 's architecture, retrieval engine, and SDK ecosystem.
- Become familiar with our Rust core, FFI boundaries, release pipelines, and supported platforms.
- Ship your first production improvements to one or more SDKs.
- Work directly with customers and internal teams to understand integration pain points and performance bottlenecks.
- Own one or more SDK surfaces end-to-end.
- Improve developer experience, reliability, or performance in meaningful ways, such as reducing startup latency, binary size, or integration complexity.
- Propose and begin executing on a roadmap for cross-platform consistency and SDK architecture improvements.
- Establish stronger standards around testing, compatibility, benchmarking, and release engineering.
- Become a technical owner for major portions of 's developer platform.
- Drive strategic initiatives around SDK architecture, cross-language bindings, packaging, and developer tooling.
- Deliver improvements that materially impact adoption, reliability, and production performance.
- Help define how reaches browsers, servers, mobile devices, edge environments, and eventually billions of devices.
- Raise the engineering bar across systems design, developer experience, and operational excellence.
- is becoming infrastructure that sits directly in the critical path of real-time AI systems. Every millisecond matters. Every platform matters.
- The SDK layer is what turns our retrieval engine into something developers can trust and deploy everywhere.
- You will not be maintaining wrappers around APIs.
- You will be defining how real-time retrieval infrastructure reaches millions of applications and, eventually, billions of devices.