Rust Systems Engineer

Company: Splenta Systems Pvt Ltd
Employment Type: Full-time

About Splenta

Splenta is building a cross-platform application runtime and agentic software platform spanning desktop, mobile, edge and enterprise environments.

Our engineering work includes a Rust-based runtime, GPU-accelerated UI rendering, JavaScript engine integration, native platform APIs, application packaging and developer tooling.

The Role

We are looking for a Rust Systems Engineer to help build and improve our cross-platform runtime and rendering infrastructure.

You will work on technically challenging problems involving graphics, operating-system integration, memory management, performance, concurrency and interoperability between Rust and native platform technologies.

Responsibilities

- Design, develop and maintain systems-level components in Rust
- Build and improve GPU-accelerated rendering and UI infrastructure
- Integrate JavaScript engines and native libraries with Rust
- Develop cross-platform abstractions for macOS, Windows, Linux, Android and iOS
- Implement native capabilities such as files, networking, databases, camera, microphone, audio and video
- Design safe and maintainable FFI boundaries between Rust and C, C++, Java, Kotlin, Swift and JavaScript
- Diagnose crashes, memory leaks, rendering issues and performance bottlenecks
- Improve runtime performance, startup time, binary size and resource utilisation
- Build asynchronous and concurrent systems
- Write tests, benchmarks and technical documentation
- Collaborate with platform, frontend, mobile and AI engineering teams
- Own complex technical components from design through production release

Required Skills

- Strong proficiency in Rust
- Good understanding of ownership, borrowing, lifetimes, traits and generics
- Experience building production-grade systems or performance-sensitive software
- Experience with asynchronous Rust using Tokio or similar runtimes
- Understanding of concurrency,



multithreading and synchronization
- Solid debugging and problem-solving skills
- Practical working knowledge of C or C++
- Experience integrating Rust with native libraries through FFI
- Understanding of memory management and resource lifecycles
- Strong knowledge of systems programming fundamentals
- Experience with Git and modern software-development practices

Preferred Experience

Experience in one or more of the following areas would be valuable:

- wgpu or another graphics abstraction
- Vulkan, Metal, DirectX or OpenGL
- Graphics engines, game engines, browser engines or UI frameworks
- Windowing and input systems such as winit
- Text rendering, font shaping, SVG, layout or 2D graphics
- V8, JavaScriptCore, QuickJS or other embedded JavaScript engines
- Android NDK, JNI, AOSP or native Android development
- Swift, Objective-C, Kotlin or Java
- Multimedia frameworks such as GStreamer, AVFoundation or MediaCodec
- WebSockets, SSE, HTTP/2 or other real-time networking technologies
- SQLite or other embedded databases
- LLVM, compilers, interpreters or virtual machines
- Robotics, simulation or real-time systems

Prior experience with wgpu is useful but not mandatory. Engineers with strong Rust systems experience and exposure to another graphics API or engine are encouraged to apply.

What We Value

- Ability to understand and improve unfamiliar systems
- Strong engineering fundamentals over framework-specific knowledge
- Attention to correctness, reliability and deterministic behaviour
- Ability to work across operating-system and language boundaries
- Practical judgement and focus on shipping production software
- Curiosity, ownership and willingness to solve difficult technical problems

Pay: ₹1,400,000.00 - ₹1,800,000.00 per year

Benefits:

- Provident Fund

Experience:

- Rust (programming language): 3 years (Required)
- • wgpu or another graphics abstraction: 1 year (Required)
- • Vulkan, Metal, DirectX or OpenGL: 1 year (Required)

Work Location: In person

📌 Rust Systems Engineer (India)
🏢 Splenta Systems
📍 India