Senior SWE

**Czym będziesz się zajmować?** Our client is one of the largest game studios known for their very successful online MOBA and FPS franchises. Game client SDK is a multi-platform (PC, PS5, Xbox, iOS, Android) toolkit that provides core online capabilities for the games developed by our client. The SDK is built in C++ 23 and Typescript. Your team will comprise engineers from Poland working closely with other EU and US West Coast engineering teams. **Although it's not a daily requirement, due to working across multiple time zones, flexibility to attend later meetings is an important factor for success in this role.** **Responsibilities** * Building core, multiplatform SDK features in **C++23** * Working on the SDK UI features built in **Typescript**, **React** and **Noesis Engine** * Monitoring system telemetry and setting up alerting using **Datadog** * Using **Sentry** and **Datadog** for triaging of production issues * Development of integration and E2E tests in **Vitest** framework * Investigations of security vulnerabilities and working with InfoSec team to minimise platform abuse * Implementation of core features under the guidance of Technical Lead/Engineering Lead * Conduct code reviews * Collaborate with different teams across the company * Prepare design docs, implementation strategy and choose appropriate tools * Hands-on work with live production systems **Kogo poszukujemy?** **Required qualifications** * **5+** years of experience in **C++ 17/23 and STL library** * **2+** years of experience in **Typescript and React** * Knowledge of TCP/IP, HTTP, REST APIs, client-server architectures * Knowledge of tools used for C++ debugging and profiling * Hands on experience working with production systems * Bachelor's or higher degree in Computer Science, Software Engineering, or a related field * Effective communication and teamwork skills * Fluency in English, it’s our daily business language **Nice to have** * Experience in the **gaming industry**, particularly with online multiplayer games * Knowledge of **game console SDKs** - PS5, XBox * Mobile development experience for **iOS** and **Android** * Experience with **Unreal Engine 5** * Experience with **CMake** build system * Experience with observability and monitoring tools, preferably **Datadog** and **Sentry** * Knowledge of **Vitest** framework **Czego wymagamy?** 5 lat doświadczenia na podobnym stanowisku Znajomości: * C++ * STL * TypeScript * React Języki: * Angielski **Jakie warunki i benefity otrzymasz?** * 26k–29k PLN netto/m (B2B) * B2B - Elastyczne godziny pracy (100%) * Praca zdalna: W całości * Budżet szkoleniowy, Szkolenia wewnętrzne * Pakiet medyczny, Ubezpieczenie **Kim jesteśmy?** Appliscale is an independent Technology Consultancy specializing in bespoke, cloud-based systems and full-cycle engineering - from business analysis to architecture design, development, and deployment. We work across industries such as gaming, proptech, legaltech, and adtech, partnering with startups, scaleups, and Fortune 500 companies worldwide. Our current focus is on building intelligent agents that drive automation, streamline operations, and enable scalable agentic ecosystems. With a flat structure, remote-first culture, and self-organized teams, we foster an environment where engineers innovate, share expertise, and create real impact.