Middle Strong C++ developer (remote)

DOU Polska; Kraków; A distancia; PLN 150.000 - 230.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Fully remote

Remote work options

Descripción de la vacante

DOU Polska is seeking a talented Middle strong C++ Developer to contribute to a mature, high-performance trading platform in energy commodities. You will join a live, production system where every millisecond counts and you can influence the technical direction of a core part of the platform.

The role requires 3.5+ years of professional software development, deep Modern C++, Linux/POSIX expertise, and strong networking knowledge (ZeroMQ, sockets) with English at an upper-intermediate level.

Formación

• 3.5+ years of professional software development experience.
• Deep expertise in Modern C++ (17/20/23) including move semantics, constexpr, templates.
• Strong experience with Linux/POSIX environments.
• Proficiency with build systems and tools: CMake / vcpkg, Git.
• Hands-on experience with concurrency and shared memory.
• Networking skills: ZeroMQ (or similar), low-level socket programming (TCP/UDP).
• English: Upper-Intermediate or Advanced.

Responsabilidades

• Join a live, production trading system where milliseconds matter.
• Contribute high-quality, consistent C++ code to a mature product.
• Influence technical direction of a core platform component.
• Collaborate with a cross-functional team in a global fintech/trading context.

Conocimientos

Modern C++ (17/20/23)

Linux/POSIX

Concurrency/Shared memory

English (Upper-Intermediate/Advanced)

Performance optimization

Herramientas

CMake

vcpkg

Git

ZeroMQ

TCP/UDP sockets

Descripción del empleo

We are looking for a talented Middle strong C++ Developer with 3.5+ years of programming background to make consistent, high-quality code contributions to a mature, high-performance C++ product in the energy commodities trading domain.This is not a from-scratch build — you’ll be joining a live, production trading system where every millisecond counts, with real opportunity to influence the technical direction of a core part of the platform.

JOB REQUIREMENTS:Must have:

• 3.5+ years of professional experience in software development
• Deep expertise in Modern C++ (17/20/23): move semantics, constexpr, templates, etc.
• Strong experience with Linux / POSIX environments
• Profi/ciency with build systems and tools: CMake / vcpkg, Git
• Hands-on experience with concurrency and shared memory tools
• Networking skills: ZeroMQ (or similar), low-level socket programming (TCP/UDP)
• Proficiency in using AI coding tools (Cursor, Claude, Codex, etc.) to enhance the development workflow
• English: Upper-Intermediate or Advanced

Nice To Have

• Experience with Svelte
• Familiarity with kdb+, TypeScript, and code generation tools
• Experience in Financial or Trading domains (FIX Protocol, OMS, market data feeds like ITCH/OUCH)
• Knowledge of Redis or other in-memory data stores
• Familiarity with the Qt framework
• Team lead experience (optional, not required)

What We Are Looking For

• Autonomy: You excel at working independently, learning on your own, and figuring out large, unfamiliar codebases without external support.
• Ownership: You are ready to take full responsibility for the core part of the system.
• Assertiveness: You can clearly communicate your technical vision and demonstrate your project understanding effectively.

PROJECTCustomer: Global company based in the US, serving large international clients.Type: Fintech / trading platformProduct: A live, high-performance market order and trading system designed as an exchange for energy commodities. The platform connects global buyers and sellers of specialized commodities, providing trading, data insights, and market infrastructure used by large enterprises, financial institutions, and government agencies.Market: Global — primarily US and European markets, serving corporations, financial institutions, and governments across multiple regions.Stage: Existing, established platform. The Markets Engineering team is expanding internationally.Project team: C++ and UI developers (team of 4-6), reporting to a Lead C++ Engineer. [confirm exact composition with HM]Technical stack: Modern C++ (17/20/23), Linux/POSIX, CMake, vcpkg, Git, ZeroMQ, shared memory, TCP/UDP sockets; Svelte, TypeScript, kdb+, Redis, Qt (adjacent/nice to have)Work schedule: Full-time working day, fully remote.Key achievements:

Key achievements:

• Large international customer with a portfolio of large international clients
• Real opportunity to set the direction for a mature product

Interview Stages

• Intro call with recruiter
• Technical interview (TechMagic)
• Client test task
• Interview with Hiring manager
• Client interview

Our Benefits

• Projects with modern JS stack (React.js, React Native, Angular, Node.js)
• Strong JavaScript community at the company (90+ developers)
• Work from anywhere (fully remotely or in our office)
• One of the best IT employers in Lviv (or IT service companies in Ukraine) based on DOU rating