Senior Python Developer (+ C++)

We’re not a typical software development team. Instead of working on business features, our goal is to keep a large, shared library stable and consistent. The library is developed by more than 100 contributors and used across different environments and technologies.Our daily work involves solving complex technical problems. We often deal with compilers, system quirks in Linux and Windows, and other deep technical topics that require careful research and creative thinking.We’re also responsible for setting up automation and defining rules for development and release processes. The project is large and part of a highly regulated financial institution, so the work can be challenging — but also very rewarding for those who like solving difficult engineering problems.Industry: FinanceLocation: Kraków / Hybrid/ Remote from PolandYour daily work will include:Keep our shared library stable and working well.Solve technical problems on Linux, Windows, and different systems.Find and implement solutions to make the system faster and more reliable.Help set up automation and improve development and release processes.Work together with other developers to deliver high-quality results.Team & Collaboration5 (Montrose) + client’s team (~30 people)Regular meetings:Usually 11:00–14:00 CET, with flexibility to align with the team’s scheduleCommunication: Chat, emails, ad hoc callWorking hours: usually 9:00–17:00 CET Qualifications:Strong experience in C++ and/or Python.Familiarity with Linux and Windows systems.Experience with build systems, compilers, and automation.Ability to solve complex technical problems and work independently.Comfortable working in a collaborative team with multiple contributors.Good English communication skills.Experience in finance or regulated environments is a plus.Please note that the interview process is divided into four parts:Technical phone screening (~30 minutes)Technical interview (~2 hours)Non-technical call with HR team (~30 minutes)Call with client for which you will be working Perks, Snacks & Everything Nice :)Work Environment & FlexibilityTop-quality equipment to support your workFlexible working hoursRemote work optionExciting and challenging projects with international teamsLearning & DevelopmentEnglish lessons with a native speakerDedicated training budget for personal and professional growthHealth & Well-beingPrivate medical insuranceMultisport card Air-conditioned workspaceShowers available at the officeFood & ComfortLunches from Kraków’s top restaurants delivered to the office or a refund of the budget allocated for itFully stocked kitchen with drinks, fruit, and snacksLifestyle & FunNo dress code — dress comfortablyChillout area with bean bags, therapy balls, PlayStation 4, Nintendo Switch 2 + games, stretching area, and pull-up barRegular team eventsAdditional PerksIndoor bicycle parkingWyrażam zgodę na przetwarzanie moich danych osobowych przez Montrose Software zgodnie z Polityką Prywatności.English Version:I consent to Montrose Software processing my personal data according to the Privacy PolicyZapoznałem sie z Polityka Ochrony Sygnalistów Montrose Software.English Version: I consent to the Montrose Software Whistleblower Protection Policy.