Software Engineer (Edge - Devices & Mobile) - Remote

Zyte

Rio de Janeiro

Remote

BRL 300,000 - 420,000

Full time

8 days ago

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Benefits offered by this job

Remote work

Flexible hours

Conference attendance

Open source tooling

Job summary

Zyte is seeking a senior Rust engineer to own and expand a cross‑platform peer runtime spanning Windows, Android, Linux, and beyond. You will work on Edge, our residential device fleet, integrating native OS APIs via FFI, and collaborating with global teams to deliver reliable, scalable web data extraction infrastructure.

You will own the Rust runtime across platforms, ensure robust networking, and contribute to production-grade software with a focus on security and observability.

Qualifications

5+ years of production Rust experience, with a proven track record of shipping and maintaining software end-to-end.

Responsibilities

Build our cross-platform peer runtime: take ownership of the Rust peer binary across Windows, Android, Linux (and eventually macOS).
Bring Edge to mobile platforms: port to Android using NDK/JNI, handling foreground services and network quirks.
Master the FFI boundary: integrate Chromium network stack and browserless HTTP clients into the peer.
Harness hardware signals: map fingerprints and share insights with teams to keep emulated tiers realistic.
Make the fleet transparent: define per‑device metrics for uptime, bandwidth, and success rates.
Expand edge capabilities: add peer‑level support for new tasks like captcha solving and browser rendering.
Share production responsibility: participate in on‑call rotations and post‑mortems.
Raise the engineering bar: author RFDs and set the standard for cross‑platform Rust at Zyte.

Skills

Rust

Cross-platform Rust

FFI (JNI/NDK)

Networking (TCP/TLS/HTTP)

Observability & reliability

Security awareness

Async programming

Team collaboration

Tools

Cronet

JNI/NDK

OpenTelemetry

Kubernetes

GCP

Job description

Why Join Zyte?

At Zyte, we don't just extract web data—we tackle some of the internet's trickiest data collection challenges at a massive scale. We're a globally distributed team of bold, curious problem-solvers dedicated to delivering clean, reliable web data wherever it's needed.

We live and breathe data: We unlock access to open web data, helping everyone from scrappy startups to global enterprises power competitive intelligence, analytics, and cutting-edge AI models
Truly remote-first: Work from wherever you thrive. With more than 260 Zytans spread across 33 countries, our diversity is our greatest strength
Engineering excellence: We love rolling up our sleeves to dig into complex codebases, test out fresh technologies, and push technical limits. If you love creative problem-solving and delivering rock-solid production software, you'll feel right at home here
Thoughtful architecture: We use a clear system design framework to balance functional needs with architectural trade-offs, making sure our decisions are smart and sustainable
Fascinating distributed systems: Solve unique engineering problems across custom networking, high-throughput streaming, and large-scale orchestration under real-world constraints
Real ownership: Work on a profitable, industry-leading platform that dedicatedly sets aside time and resources for architectural research and long‑term feature design

Why Join Zyte?

We live and breathe data: We unlock access to open web data, helping everyone from scrappy startups to global enterprises power competitive intelligence, analytics, and cutting‑edge AI models
Truly remote‑first: Work from wherever you thrive. With more than 260 Zytans spread across 33 countries, our diversity is our greatest strength
Engineering excellence: We love rolling up our sleeves to dig into complex codebases, test out fresh technologies, and push technical limits. If you love creative problem-solving and delivering rock‑solid production software, you'll feel right at home here
Thoughtful architecture: We use a clear system design framework to balance functional needs with architectural trade-offs, making sure our decisions are smart and sustainable
Fascinating distributed systems: Solve unique engineering problems across custom networking, high‑throughput streaming, and large‑scale orchestration under real‑world constraints
Real ownership: Work on a profitable, industry‑leading platform that dedicatedly sets aside time and resources for architectural research and long‑term feature design

What Is This Role All About?

When Zyte API fetches web data, it works through a progressive ladder of routes: standard HTTP requests, headless browsers, and, for the toughest sites, Edge—our custom residential network of real physical devices. Edge is our heavy hitter when all else fails. It runs a Rust peer runtime on residential Windows PCs that long‑polls our command‑and‑control service over mTLS gRPC, making fetches look indistinguishable from real human traffic using genuine hardware, residential IPs, and seamless fingerprints.

Our Edge Platform squad manages both the control plane and data plane of this stack. Right now, we're expanding from Windows into Android devices on mobile networks and self‑hosted Linux (with macOS on the horizon). Mobile is where our biggest opportunity lies: websites that block desktop traffic often welcome a real mobile phone on a 4G connection. That's where you come in! You'll be the lead engineer making our peer run smoothly and invisibly across every platform—binding Rust to native network stacks and OS APIs via FFI, and turning scattered devices into a well‑oiled, observable fleet. We're a lean, senior team, so you'll collaborate closely with our Team Lead, Principal Engineer, and the Browser Stack and Antiban squads.

What You’ll Be Doing

Build our cross‑platform peer runtime: Take ownership of the Rust peer binary across Windows, Android, Linux (and eventually macOS)—handling process lifecycles, background tasks, networking, automatic updates, and rock‑solid stability on unmanaged hardware
Bring Edge to mobile platforms: Port our peer to Android using NDK/JNI, navigating foreground services, battery optimizations, and mobile network quirks to integrate real and emulated device farms into our fleet
Master the FFI boundary: Integrate the Chromium network stack (Cronet, C++) and browserless HTTP clients into the peer as clean, well‑tested Rust libraries with safe runtime contracts
Harness hardware signals: Gather deep hardware and OS reconnaissance from the fleet—mapping TCP/TLS/HTTP fingerprints—and share insights with our Browser and Antiban teams so our emulated tiers stay realistic
Make the fleet transparent: Build precise per‑device metrics around uptime, drop‑off rates, bandwidth, and success rates so we can hold ourselves and supply partners accountable
Expand edge capabilities: Add peer‑level support for new tasks like captcha solving and browser rendering, while keeping the peer securely isolated from untrusted pages and hosts
Share production responsibility: Join our team on‑call rotation, run thoughtful post‑mortems, and transform real‑world lessons into software and deployment improvements
Raise the engineering bar: Author RFDs, review architectural designs, and set the gold standard for how cross‑platform Rust is built and delivered at Zyte

Who You Are

5+ years of production Rust experience, with a proven track record of shipping and maintaining software end‑to‑end
Cross‑platform Rust expertise: You've shipped Rust code on at least two platforms across Windows, macOS, or Android (with at least one mobile platform under your belt). You understand the intricacies of OS permissions, processes, and background behavior
Comfortable with FFI: Skilled in interfacing Rust with C/C++ libraries and native OS APIs (JNI/NDK, Win32, POSIX), including managing lifetimes, memory ownership, and cross‑language threading
Deep networking knowledge: Thorough understanding of TCP, TLS, and HTTP protocols down to the packet level; you know how to dissect network traffic and analyze why client fingerprints differ
Reliability‑first mindset: You instrument everything you build, know how to measure fleet health without direct device access, and take pride in on‑call operational excellence
Security‑conscious: You recognize that running code on third‑party devices requires high trust and rigorous defensive design
Great async communicator: Excellent written communication skills suited for a distributed, remote‑first team
Incurably curious: You enjoy reverse engineering protocols, exploring new binaries, and figuring out how complex systems truly work under the hood

Our Tech Stack

Languages: Rust (tokio, tonic), C++ (Cronet), Kotlin/Java on Android
Platforms: Windows today; Android (real and emulated) and Linux next; macOS coming soon
Protocols & Libraries: gRPC and Protobuf over mTLS, Chromium network stack, custom browserless HTTP clients, and custom Chromium builds
Infrastructure: GCP, Kubernetes, Valkey, BigQuery, blue/green deployments
Observability: Prometheus, Grafana, Loki, OpenTelemetry

Nice‑to‑Haves

Residential network experience: Building or running proxy networks, peer‑to‑peer applications, or device farms
Browser internals knowledge: Experience with Chromium, Cronet, Firefox networking, or anti‑detection technologies
Distributed systems background: Designing schedulers, orchestrators, or control planes for large‑scale fleets
Web scraping experience: Familiarity with the technical nuances and hurdles of web scraping at scale
Open source contributions: Active participation in Rust, networking, or mobile open‑source communities

Why You’ll Love Working Here

Massive impact: Build the foundational device layer powering data pipelines for global industry leaders
Autonomy & flexibility: Enjoy true remote work with flexible hours and a high‑trust, supportive environment
Continuous innovation: Solve cutting‑edge technical problems at the intersection of AI and web data collection
Global collaboration: Work alongside talented, passionate systems engineers and data experts worldwide

If you’re a Rust engineer who loves making software run reliably across unpredictable hardware and diverse platforms, we’d love to hear from you. Come help us shape the future of web data extraction at Zyte!

Benefits