Low-latency backends and APIs
Async services on Tokio with Axum or gRPC, designed for predictable tail latency under load.
ap0t is a founder-led software engineering studio based in India that delivers worldwide, led by Vicky Paswan, a founding engineer specialising in Rust and distributed systems. We provide Rust software development services: low-latency backends, high-throughput data and event processing, safe rewrites of C, C++ or slow services, WebAssembly and embedded software, built and documented so your team can own them.
Rust is the right choice when performance and correctness are both non-negotiable: trading and payments engines, real-time pricing, telemetry and event pipelines, data processing at scale, network services, and anything that runs close to hardware.
It is also a strong choice for rewrites. Services written in C or C++ carry memory-safety risk; services in interpreted languages can hit cost and latency ceilings. Rust delivers native performance with memory safety enforced by the compiler, which removes whole classes of bugs and security vulnerabilities.
The challenge is that experienced Rust engineers are scarce. We provide that senior Rust expertise directly, and structure the work so your own engineers can learn, review and maintain the code.
Async services on Tokio with Axum or gRPC, designed for predictable tail latency under load.
High-throughput consumers and pipelines on Kafka or NATS, stream processing, and data transformation services.
Incremental rewrites of slow or unsafe components into Rust, behind stable interfaces, without a risky big-bang switch.
Hot paths moved into Rust and exposed to Python with PyO3 or to Node through native modules, keeping your existing stack.
Rust compiled to WebAssembly for compute-heavy browser features, plugins and sandboxed edge workloads.
Firmware and edge services using embedded Rust where memory safety and reliability on constrained hardware matter.
Every program starts small and proves value before it grows.
Profiling and architecture review of the current system, a clear performance and reliability target, and a plan that says where Rust pays off and where it doesn't.
One component built or rewritten in Rust and benchmarked against the current version on your real workloads.
Further services migrated behind stable interfaces, with load tests, observability and runbooks for each.
Code reviews, pairing and documentation so your team can maintain the Rust code, plus optional ongoing support.
We write idiomatic, well-tested Rust: strong types to make invalid states unrepresentable, explicit error handling, property and integration tests, and benchmarks in CI so performance regressions are caught before release.
Services are designed for operations from the start: structured logging and tracing with OpenTelemetry, metrics, graceful shutdown, configuration and health checks, packaged as small container images for Kubernetes or serverless platforms.
Rust rarely lives alone. We integrate cleanly with the rest of your stack through gRPC, REST, message queues or language bindings, so you can adopt Rust where it matters without rewriting everything.
Every engagement is scoped after a paid discovery, because the right size depends on your processes, systems and goals. Programs range from focused pilots to multi-year builds with dedicated teams.
Discovery is a fixed fee. Each delivery phase is then priced as a fixed scope or as a monthly dedicated-team retainer, with a written estimate, assumptions and risks agreed before work starts. You can pause or stop between phases, and you keep everything that has been built.
Rust is a systems programming language that combines performance comparable to C and C++ with memory safety guaranteed by its compiler. Companies use it for software where speed, reliability and security all matter, such as backends, infrastructure, data processing and embedded systems.
Usually not all at once. We profile the system first and rewrite the components where Rust gives a clear gain in latency, cost or safety, behind stable interfaces. Many systems benefit most from a few Rust services alongside the existing code.
Yes. Besides scoped projects, we offer dedicated Rust engineering on a monthly retainer, working inside your repositories, processes and code review, with knowledge transfer to your engineers.
Yes. Rust services communicate over gRPC, REST or message queues, and Rust code can be called directly from Python through PyO3 or from Node through native modules, so you can speed up hot paths without changing your whole stack.
Yes. Rust is used in production by large technology companies, in operating systems and browsers, and in cloud infrastructure. Its ecosystem for web services, async networking, databases and serialization is mature and well maintained.
We write idiomatic, documented code with tests, review it with your engineers, pair on key components and leave written architecture and operations guides. The goal is that your team owns the system after hand-over.
Tell us what you're planning. You'll hear back within one business day, and we can sign an NDA before you share details.