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FullStack .NET + React Developer

MADIFF Polska
Full-time
On-site
Warsaw, Warsaw, Poland
We’re looking for an experienced <\/span><\/span>FullStack .NET Developer<\/span><\/span><\/b> to join a <\/span><\/span>greenfield digital transformation project<\/span><\/span><\/b> in the corporate banking sector.
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You’ll help build a <\/span><\/span>modern, high\-performance system from scratch<\/span><\/span><\/b> using <\/span><\/span>.NET 6\/8, React, Kafka, and microservices<\/span><\/span><\/b> integrated with multiple enterprise platforms — a project that will have a long\-term impact on thousands of users.<\/span>
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Responsibilities:<\/b><\/span>
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  • Build scalable backend features in .NET 6\/8 and contribute to a microservices\-based architecture<\/span>
    <\/span><\/span><\/p><\/li>

  • Develop clean, reusable components in React integrated with REST APIs<\/span>
    <\/span><\/span><\/p><\/li>

  • Implement and integrate REST\/SOAP services and event\-driven systems with Kafka<\/span>
    <\/span><\/span><\/p><\/li>

  • Work closely with analysts, architects, and business stakeholders on requirements and design<\/span>
    <\/span><\/span><\/p><\/li>

  • Participate in testing, deployment, and optimisation to ensure high system performance<\/span>
    <\/span><\/span><\/p><\/li>


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    Requirements<\/h3>

  • 5+ years of experience in .NET development
    <\/span><\/span><\/p><\/li>

  • Strong skills in .NET 6\/8, REST, SOAP, SQL Server, Entity Framework<\/span>
    <\/span><\/span><\/p><\/li>

  • Hands\-on experience with React<\/span>
    <\/span><\/span><\/p><\/li>

  • Familiarity with Kafka and distributed\/microservices architecture<\/span>
    <\/span><\/span><\/p><\/li>

  • Understanding of enterprise system integration and APIs<\/span>
    <\/span><\/span><\/p><\/li>

  • Fluency in Polish and English (B2 level or higher)

    <\/span><\/span>
    <\/span>Nice to have:<\/span><\/span><\/b>

    <\/span><\/span><\/p><\/li>

  • Experience in banking or financial systems<\/span>
    <\/span><\/span><\/p><\/li>

  • Knowledge of secure systems or mobile banking<\/span>
    <\/span><\/span><\/p><\/li>

  • Familiarity with DDD, event storming, or user story mapping<\/span>
    <\/span><\/span><\/p><\/li>

  • Experience working in Agile\/SCRUM environments<\/span>
    <\/span><\/p><\/li>


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    Benefits<\/h3>

  • Competitive salary
    <\/span><\/p><\/li>

  • Fully remote or hybrid model<\/span>
    <\/span><\/p><\/li>

  • Long\-term B2B contract with a stable project pipeline<\/span>
    <\/span><\/p><\/li>

  • Comprehensive healthcare<\/span>
    <\/span><\/p><\/li>

  • Work in a multilingual, multinational, and multicultural environment on international projects<\/span>
    <\/span><\/p><\/li>


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    <\/body> <\/html>"}}],"isMobile":false,"iframe":"true","jobType":"Full time","applyName":"Apply Now","zsoid":"47528597","FontFamily":"Verdana, Geneva, sans\-serif","jobOtherDetails":[{"fieldLabel":"Industry","uitype":2,"value":"Financial Sector"},{"fieldLabel":"City","uitype":1,"value":"Warsaw"},{"fieldLabel":"State\/Province","uitype":1,"value":"Masovian Voivodeship"},{"fieldLabel":"Zip\/Postal Code","uitype":1,"value":"00\-002"}],"headerName":"FullStack .NET + React Developer","widgetId":"300725000000072311","isJobBoard":"false","userId":"300725000000079003","attachArr":[],"customTemplate":"5","isCandidateLoginEnabled":false,"jobId":"300725000046082225","FontSize":"12","location":"Warsaw","embedsource":"CareerSite","logoId":"8penb8e1b1b248bcc41a9936b87edad7bccfc"}

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