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Low Latency Systems

Custom Network Layers & Rust Engines — Every Millisecond Counts

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Low Latency Systems illustration

Standard frameworks add overhead you can’t afford. Your system needs to saturate the hardware, not fight it. When latency is a hard constraint and throughput is measured in hundreds of thousands of events per second, architecture decisions at the source level are the only lever that matters.

Obox Systems is an international software engineering company headquartered in the US, specializing in high-throughput real-time systems and custom network infrastructure. Engagements are led by our CTO, backed by a structured team with mandatory peer review; NDA available on request.

Proven: 100,000+ concurrent connections at under 10 ms on a crypto trading platform (Clutch-verified); sub-150 ms real-time bidding responses for an ad platform.

We can help you with:

  • Network engines and custom proxies — load balancers, gateways, and binary protocol implementations built for your traffic
  • Predictable tail latency — no garbage-collection pauses, lock-free hot paths, p99 measured under realistic load
  • Real-time stream processing — TCP, UDP, and WebSocket pipelines that hold throughput at peak
  • eBPF-based observability — kernel-level visibility into where every microsecond goes
  • Targeted migrations — legacy bottlenecks rewritten in Rust behind the same interfaces, not whole-system rewrites
  • Full ownership — source code, benchmarks, and deployment scripts stay yours

The Diagnostic Architecture Audit profiles your system under peak load and maps the optimization path in five days — a written plan you own.

Technologies we use

  • Rust
  • Linux Kernel
  • C/C++
  • WebSockets
  • gRPC
  • Redis
  • Docker
  • AWS

Packages

Diagnostic Architecture Audit

Latency profiling under simulated peak load — p99 and tail-latency analysis, lock contention and memory allocation review, and a remediation roadmap

5 days

Rapid Technical Spike / PoC

A production-grade Rust prototype of one latency-critical path or network component, delivered with comparative benchmarks against your current system

10–15 days

Dedicated Engineering Squad

A dedicated Obox engineering team that owns performance, load testing, and scaling of your latency-critical system, with all code and IP staying yours

Monthly retainer

Core Modernization Sprint

Phased migration of latency-critical legacy services to Rust — zero-downtime cutover and benchmarks at every milestone

Milestone-based

Case Studies

Web-Based Trading App project screenshot
Web App Development

Web-Based Trading App

United States4 months

Delivered a scalable cryptocurrency trading platform with conditional order automation, real-time WebSocket processing handling up to 100,000 subscriptions, advanced charting, and secure wallet integration.

Unified Proxy Management Dashboard project screenshot
SaaS DevelopmentWeb App Development

Unified Proxy Management Dashboard

A modern, API-first client and service management platform that replaces legacy WHMCS — automating proxy and server provisioning from hours to under two minutes across a single role-based dashboard for customers, admins, support, and affiliates.

Juspay Router - A Financial Switch project screenshot
Low Latency SystemsRust Development

Juspay Router - A Financial Switch

4 months

Core contributions to Hyperswitch, an open-source Rust financial switch that routes transactions between merchants, processors, and banks with high performance and extensibility.

Collaborative Video Stream Control App project screenshot
AI Video Production

Collaborative Video Stream Control App

United States9 months

A collaborative remote video-production platform that turns distributed teams into a virtual studio, sharing control of Blackmagic switchers and cameras with low-latency feeds and talkback.

FAQ

  • We focus specifically on the critical path. Instead of just writing business logic, we deal with memory allocation, kernel-level networking (eBPF), lock-free concurrency, and custom protocols using Rust to achieve sub-10ms latency and massive throughput.

  • Firecracker vs QEMU makes Rust’s impact measurable: Firecracker (Rust, AWS, since 2018) has fewer than 10 CVEs and zero VM escapes; QEMU (C, since 2003) has 300+ CVEs. Rust removes buffer overflows/​use-after-free at compile time, with no GC pauses or memory surprises.

  • Not usually. We are pragmatic. Often, we identify specific bottlenecks (like an API gateway or a data relay) and build highly optimized custom proxies in Rust just for that critical path, integrated directly with your existing stack via gRPC, REST, or shared memory.

  • We heavily integrate benchmarking and profiling from day one. Every milestone includes rigorous load testing and stress testing to ensure the system meets your specific latency (p95, p99) and requests-per-second (RPS) requirements.

  • Benchmarking and profiling are built into every milestone, not added at the end. Each gate includes CI/​CD checks, memory leak profiling, and load tests against p95/​p99 latency and RPS targets. CTO architecture reviews help produce systems like 100,000+ stable live WebSocket connections.

  • Built a crypto trading platform that handled 100,000+ live WebSocket subscriptions with stable dynamic connection management from day one (Clutch-reviewed, New York). On another project, we delivered a sub-150ms RTB engine that cut spam/​bots by 80% at high real-time bidding volume.

  • Yes. We sign NDAs before any technical discussion begins, on request.

  • You do. IP, source code, architecture docs, and deployment runbooks are fully assigned to you on completion — no vendor lock-in.

  • Yes. Signed contracts with fixed scope per phase. Wyoming LLC — you’re contracting with a registered entity, not an individual.

Book a free call

Consult with our engineering team to define the perfect solution for your needs.

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30 minutes