Senior C# Developer
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Job Description
Senior C# Developer modernizing .NET payment platforms for Code & Pepper’s FinTech clients. Building Apple Pay tokenization, banking integrations, and core payment modules.
Responsibilities:
- Rozwój i modernizacja platformy płatniczej w sektorze FinTech opartej na technologii C# (.NET)
- Implementacja tokenizacji dla Apple Pay
- Przebudowa procesów onboardingowych
- Integracje z bankami korespondencyjnymi i dostawcami usług transakcyjnych
- Wytwarzanie kluczowych modułów płatniczych
- Integracje z zewnętrznymi instytucjami
- Bieżące utrzymanie i optymalizacja systemu
Requirements:
- Doświadczenie komercyjne w projektowaniu i programowaniu backendu w języku C# (.NET / .NET Core)
- Praktyczne doświadczenie w integracji bramek płatniczych, procesów transakcyjnych lub tokenizacji (np. Apple Pay)
- Biegłość w tworzeniu, optymalizacji i integrowaniu usług REST API oraz mechanizmów webhook
- Doświadczenie w integracjach z zewnętrznymi API instytucji finansowych lub banków
- Praktyczna znajomość relacyjnych baz danych (np. MS SQL, PostgreSQL) oraz optymalizacji zapytań SQL
- Doświadczenie w refaktoryzacji, modernizacji procesów backendowych oraz utrzymaniu systemów produkcyjnych
- Umiejętność pisania testów jednostkowych i integracyjnych (np. xUnit, NUnit)
- Znajomość zasad architektury oprogramowania (Clean Architecture, SOLID, wzorce projektowe)
- Doświadczenie w pracy z systemem kontroli wersji Git oraz procesami CI/CD
- Znajomość języka angielskiego na poziomie umożliwiającym sprawną komunikację techniczną i biznesową (min. C1)
- Znajomość wymogów bezpieczeństwa i regulacji w branży płatniczej (np. PCI DSS, PSD2 / SCA) — nice to have
- Doświadczenie w integracji z dostawcami usług rozpoznawania obrazu/dokumentów (Computer Vision, KYC / OCR) — nice to have
- Doświadczenie we współpracy z bankami korespondencyjnymi lub znajomość protokołów bankowych — nice to have
- Praktyka w pracy z platformami chmurowymi (Azure, AWS) oraz konteneryzacją (Docker) — nice to have
- Znajomość architektury sterowanej zdarzeniami i kolejek komunikatów (np. RabbitMQ, Kafka) — nice to have
Benefits:
- Współpracę w modelu B2B lub Umowa o pracę – Ty wybierasz
- Budżet szkoleniowy (do 2500 zł netto rocznie)
- Elastyczne godziny pracy (z uwzględnieniem core hours)
- Możliwość 100% pracy zdalnej
- Karta Multisport Plus
- Prywatna opieka medyczna (Luxmed)
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