April 9, 2026

C++ Modernization Engineer (VS 2022 / Windows / COM)

Senior • Remote

135 - 135 PLN/hr

Warsaw, Poland

We are looking for a senior C++ engineer to lead the modernization of multiple legacy C++ products.

The project includes upgrading dependencies from legacy MSVC++ Redistributables (2010–2017) to MSVC++ 2022, ensuring full compatibility with Visual Studio 2022, modernizing build pipelines, and validating functional stability across 8 components.

Project information:

  • Type of project: Consulting

  • Office location: Warszawa

  • Work mode: Remote

  • Budget: 135 PLN net /h - b2b

  • Project length: 6 months with an option for extension

  • Only candidates with citizenship in the European Union and residence in Poland

  • Start date: ASAP (depending on candidate availability)

Key Responsibilities

  • Migrate all products to Visual Studio 2022

  • Remove obsolete C++ runtime dependencies

  • Refactor legacy code for modern toolsets

  • Update CI/CD pipelines (Bitbucket preferred)

  • Validate third-party integrations (Boost, Solace C Driver, LZO, etc.)

  • Fix known issues and support final sign-off

Requirements

  • Strong experience in modern & legacy C++

  • Deep knowledge of Windows development (Win32, DLLs, services, file systems)

  • Hands-on experience with COM / ActiveX

  • Migration experience from older Visual Studio versions

  • Strong debugging and refactoring skills

  • Experience with MSBuild and CI/CD pipelines

Nice to have:

  • Solace C Driver (7.x)

  • WebSphere MQ client development

  • Boost-based services

  • LZO compression library

  • Cross-platform builds (Windows & UNIX environments)

We offer:

  • Remote working model

  • Full-time job agreement based on b2b

  • Private medical care with dental care (covering 70% of costs) + rehabilitation package. Family package option possible

  • Multisport card (also for an accompanying person)

  • Life insurance

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Katowice, Poland

🏢 Summary: Senior C++ Engineer role focused on transforming Python-based research and machine learning prototypes into high-performance, production-grade C++ applications for real-time and resource-constrained environments. The position involves optimizing, containerizing and deploying reliable systems across edge and scalable cloud platforms. You will collaborate closely with data science teams to deliver deterministic, low-latency solutions with strong CI/CD and quality standards. 🗂️ Requirements: 5+ years of modern C++ development (C++17/C++20), Strong knowledge of multithreading, concurrency and synchronization in Linux, Experience building deterministic, low-latency real-time systems, Proficiency with CMake and Conan package management, Experience profiling and optimizing CPU and memory usage in constrained Linux environments, Ability to write unit and automated tests, Experience debugging low-level communication and performance issues, Hands-on experience with Docker in Linux production environments, Experience with CI/CD and release pipelines, Familiarity with Agile tools (Azure DevOps, JIRA, Confluence, Bitbucket), Fluent English (B2+ level) 📃 Skills: C++, C++17, C++20, Linux, CMake, Conan, Docker, CI/CD, Azure, JIRA, Confluence, Bitbucket, Python, Kubernetes, Bash, TCP/IP, MQTT, ZeroMQ, ProtoBuf, Kafka, HTTP, .NET, C# 🏢 Description: We are seeking a Senior C++ Engineer to collaborate with Data Scientists and Machine Learning experts in transforming prototype algorithms into hardened, reliable, production-grade applications. In this role, you will convert research workflows into high-performance C++ systems capable of running on resource-constrained hardware or scalable cloud environments. Responsibilities Collaborate closely with Data Scientists and Machine Learning experts to turn prototype algorithms and data processing pipelines into hardened, reliable, production-grade "always-on" applications written in C++ Conversion of research and prototype ML/data-processing workflows (primarily Python-based) into high-performance, reliable C++ production systems Implementation of data quality safeguards, sanitization and required low-level interfaces for real-time inference on streaming data Optimization of code for predictable behavior, high reliability and efficient resource utilization (compute/memory/storage) on resource-constrained environments Support the development of high-performance, high-reliability solutions capable of running on resource-constrained hardware or in cost-effective, highly-scalable cloud applications Translation of real-world process dynamics, sensor behavior and system constraints into realistic online control solutions Documentation and communication of assumptions, results, limitations, risks and deployment considerations for discussion with the broader technical audience Requirements 5+ years of experience in modern C++ software development using C++17/C++20 Understanding of multithreading, concurrency, synchronization and performance optimization in Linux environments Background in developing deterministic, low-latency software for real-time systems Proficiency in CMake, modern C++ build systems and Conan package management for C++ Skills in profiling and optimizing CPU/memory utilization in constrained Linux environments Competency in writing unit tests and automated tests Proven capability to debug low-level communication issues and optimize performance under constrained environments Hands-on expertise designing, deploying and debugging containerized applications using Docker in Linux production environments Experience with CI/CD & Release pipelines: multi OS runners, artifact signing, SBOMs/vulnerability scanning Familiarity with Agile toolsets such as Azure DevOps, Atlassian tools like Confluence, JIRA and Bitbucket Fluent English communication skills at a B2+ level Nice to have Capability to independently deploy and manage cloud-native or edge-native microservices in Linux environments Flexibility to work closely with research, data science and platform engineering teams to bridge prototype and production environments Skills in Python and C++ interoperability Familiarity with industry IoT standards and protocols such as MQTT/SparkplugB, ZeroMQ, ProtoBuf, Kafka and HTTP Expertise in Linux, Bash/Shell scripting, Docker, TCP/IP networking, Kubernetes, systemd, logging, OTA/rollback strategies and advanced debugging techniques Background in deploying software in industrial environments, including remote diagnostics and field support Familiarity with .NET/C# We offer We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.