Our agency will build rust embedded firmware for esp32 stm32 and iot hardware

Senior Team, Complex Systems, 8 Years of Proof
Vetted by Fiverr Pro
obox systems was selected by the Fiverr Pro team for their expertise.
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About this Gig
Your C firmware has latent memory bugs that will surface as field failures. We build embedded firmware in Rust - same bare-metal performance, zero memory-safety vulnerabilities.
What this means for your business:
- Zero buffer overflows, use-after-free, or race conditions - Rust catches them before code reaches hardware
- Production-ready firmware in 8-12 weeks, bypassing the 6-12 month embedded Rust hiring cycle
- Incremental C-to-Rust migration via FFI - no forced rewrite, no frozen feature development
Why embedded Rust specialists, not C contractors:
- Register-level firmware engineers, not web devs treating your MCU like a cloud server
- Proven: 100% crash elimination on IoT robot vacuum (Swift to Rust, Cloudnine IoT, GoodFirms)
- BLE, WiFi, LoRa, MQTT under real-time constraints not retrofitted after field failures
- STM32, ESP32, nRF, RP2040 - we work on your target silicon
You own everything. Source code, firmware binaries, hardware docs - no vendor lock-in.
The $195 CTO Consultation maps your hardware architecture and scopes firmware boundaries 60-min call, no build commitment.
Clients We’ve worked with
Astral Hodling OÜ
Developed a cross-platform token mining app (Android, Windows, macOS) using Tauri and Kotlin. Optimized Android background tasks for 24/7 operation via foreground services. Integrated a Solana sub-wallet and replaced default WebView with GeckoView, boosting web content compatibility by 80%. Delivered a robust Proof of Concept.
Dec 2024-Jan 2025
Landsby
Developed a centralized Travel Content Management System using Rust and React to replace fragmented spreadsheets. Built an automated data migration pipeline and integrated Google Places and Travefy APIs for seamless itinerary synchronization. Reduced manual itinerary preparation time from 3-4 days to under 2 hours. Deployed a secure, Dockerized infrastructure with CI/CD on Hetzner Cloud.
Feb 2026
Portfolio
FAQ
Why Rust instead of C for embedded firmware?
Rust gives you C-level performance with compile-time memory safety. No garbage collector, no runtime overhead. The compiler catches buffer overflows, race conditions, and use-after-free before code touches hardware — the bug classes responsible for most embedded field failures.
Can you work with our existing C firmware?
Yes. Rust's C FFI lets us add new modules in Rust that integrate directly with your existing C codebase. No forced rewrite. We migrate incrementally — one peripheral, one driver, one subsystem at a time
Which microcontrollers and platforms do you support?
STM32 (Cortex-M0/M3/M4/M7), ESP32 (Xtensa and RISC-V), Nordic nRF (BLE SoCs), RP2040, and custom ARM/RISC-V targets. We work with your target silicon — not a simulator.
How do you handle real-time constraints?
We design firmware with deterministic execution paths — interrupt priorities, DMA transfers, lock-free data structures. For hard real-time requirements, we integrate with RTOS (FreeRTOS, Zephyr) and validate timing with logic analyzers and hardware profiling.
What if Rust doesn't support our specific hardware?
If a HAL crate doesn't exist for your MCU, we write one. Rust's SVD-to-PAC toolchain generates register-level access code from your chip's datasheet. We've built custom HALs for targets without ecosystem support.
Do you handle wireless connectivity?
Yes. BLE, WiFi, LoRa, MQTT, Zigbee, and CAN bus. We architect communication layers that coexist with real-time control loops — proper interrupt priorities, power management, and OTA update systems that don't brick devices.
Do you sign NDAs?
Yes. We sign NDAs before any technical discussion begins, on request.
Who owns the code after delivery?
You do. IP, source code, firmware binaries, and hardware documentation are fully assigned to you on completion — no vendor lock-in.
Do you work with formal contracts?
Yes. Signed contracts with fixed scope per phase. US company (Wyoming) — you're contracting with a registered entity, not an individual.

