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October 8, 2026

SharePoint Developer

Senior • On-site

110 - 134 PLN/yr

Warsaw, Maz, Poland

Quick Facts

  • Role: SharePoint Developer

  • Focus: SharePoint Online solutions and secure enterprise development

  • Key activities: design, development, team leadership, documentation, testing, and 2nd/3rd line support

Description

Designs and develops enterprise SharePoint (Online) systems, including custom front-end and back-end components. Develops secure client-side and server-side code using modern SharePoint tooling and APIs, while enforcing OWASP secure coding practices. Supports the full solution lifecycle—from translating requirements to deployment, testing, documentation, and incident/resolution support.

Responsibilities

  • Design and develop the system

  • Lead development teams

  • Translate requirements into system design

  • Optimize software for performance, security, and quality

  • Produce and maintain technical documentation

  • Estimate development effort and timelines

  • Define and enforce software development standards

  • Propose technical solutions for business and technical problems

  • Collect and interpret software metrics

  • Manage configuration and releases

  • Contribute to requirements analysis, testing, quality assurance, change management, and deployment

  • Test solutions and develop testing tools

  • Prototype solutions

  • Provide 2nd and 3rd line support

Requirements

  • Bachelor’s degree (level 6) in an ICT-relevant area

  • 4+ years IT-relevant professional experience

  • 2+ years relevant project experience in a similar role

  • At least 1 intermediate-level certification in software development relevant to the domain (or equivalent, subject to acceptance)

  • Experience developing front-end solutions under SharePoint Framework (SPFx) with React and other client-side frameworks/libraries

  • Experience consuming SharePoint data using PnP, SharePoint REST API, and Microsoft Graph API

  • Secure client-side component development

  • Server-side development using C#, .NET Framework, and SQL (e.g., Web Parts, Event Receivers, Timer Jobs)

  • Enforce secure coding principles (OWASP) to prevent vulnerabilities such as XSS and SQL injection

  • Valid Microsoft certificates relevant for the profile

  • B2 English (minimum)

  • At least one complete end-to-end solution lifecycle experience

  • Expert in enterprise software development in the specified technology domain

  • Knowledge of UML and ability to design applications in UML

  • Proficient in designing/developing data layer, business logic layer, and UI layer

  • Experience with Scrum development

  • Ability to lead technical teams

  • Strong technical documentation skills

  • Problem-solving capability

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