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Rnrs.solutions

Full Stack Engineer

  • Seen live on Rnrs.solutions' site today
  • Mid level
  • Remote
Pay
Not stated
Location
Warsaw, Poland
Open for
12+ days
First seen
Oct 23, 2026
Apply on Rnrs.solutions' site (opens in a new tab)

Posting record

No flags

Open 12+ days

The posting's record, oldest first
  1. Rnrs.solutions' site dates the posting
  2. Ghostless first sees this listing
  3. Last checked: still up
How we know

It hasn't been reposted, listed twice, or left up unusually long, and the posting doesn't say it's a talent pool.

Ghostless records the day it first sees a posting, so a repost can't reset its age. This one was already up when Ghostless started tracking Rnrs.solutions, so its true age is longer.

Last checked Nov 4, 2026.

How well do you match?

See how much of this posting your resume shows, and what it's missing.

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What it asks of you

3–5 years of experience
“We are looking for a Fullstack Engineer with 3–5 years of experience, strong Rust and/or C++ skills, and practical frontend experience.” (quoted from the posting)

What the posting discloses

Not stated: Pay, real vacancy, AI screening.

Why these three

Ontario requires postings from employers with 25 or more staff to state the pay, whether the vacancy exists, and whether AI screens applicants.

Some employers add pay only on their own site. Check the original posting before you rule it out.

Skills mentioned

About the role

Our client is a European deep-tech startup developing next-generation radar systems for detecting and tracking small, low-flying drones.

We are looking for a Fullstack Engineer with 3–5 years of experience, strong Rust and/or C++ skills, and practical frontend experience. You will build software for radar control, monitoring and real-time visualization, working closely with embedded, signal-processing and AI/ML engineers.

Responsibilities

  • Develop reliable, high-performance backend services in Rust and/or C++.
  • Build interfaces in React and TypeScript for system configuration, monitoring and visualization of detections and tracked objects.
  • Connect backend services and frontend applications through WebSocket, REST APIs or gRPC.
  • Integrate continuous sensor data streams, telemetry and external systems using TCP/IP, UDP and binary protocols.
  • Optimize latency, throughput, memory usage and frontend responsiveness.
  • Contribute to modular architecture, automated testing, documentation and Docker-based workflows.

Requirements

  • 3–5 years of professional software development experience.
  • Strong practical knowledge of Rust and/or modern C++.
  • Experience with React and TypeScript or comparable frontend technologies.
  • Experience with API design, network programming and frontend–backend integration.
  • Understanding of asynchronous programming, concurrency and multithreading.
  • Experience developing for Linux and working with Git and Docker.
  • Strong debugging skills and the ability to work independently in an evolving R&D environment.

Nice to have

  • Experience with radar, robotics, sensor systems or hardware–software integration.
  • Familiarity with Tokio, Axum, Boost.Asio, gRPC, Protocol Buffers or ZeroMQ.
  • Experience with geospatial interfaces, WebGL/Canvas or Qt/QML.
  • Knowledge of profiling, CI/CD, CMake or time-series data storage.

What we offer

Direct ownership of technical decisions and a visible impact on the product. Work with a multidisciplinary R&D team on real-time sensor applications where software performance, reliability and usability matter.

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