Senior SharePoint Front-end Developer (f/m/x)

Sii Poland; Kraków; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Contracts with the biggest brands

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Job summary

Sii Poland is seeking an experienced SharePoint Front-end Developer to build and maintain the frontend layer of a Knowledge Base on SharePoint Online.

You will design SPFx and React components, integrate with Microsoft 365 services and internal APIs, and collaborate with backend teams, analysts, and UX designers to deliver high-quality solutions. A strong focus on performance, usability, and modern frontend practices is required. Knowledge of REST APIs and Git CI/CD is expected.

Qualifications

• 5+ years of experience building SharePoint Online solutions.
• Expertise with SPFx, React, and TypeScript.
• Strong knowledge of PnP SPFx Controls, PnPJs, Fluent UI, Graph API.
• Experience creating Web Parts, forms, and business components.
• Experience integrating apps with REST APIs; Git and CI/CD familiarity.
• Advanced Polish, residency in Poland; English intermediate.

Responsibilities

• Develop and maintain the frontend layer of a Knowledge Base based on SharePoint Online.
• Design and implement SPFx and React components.
• Integrate with Microsoft 365 services and internal system APIs.
• Collaborate with backend teams, analysts, and UX designers.
• Ensure the quality, performance, and usability of the solution.

Skills

SharePoint

React

TypeScript

SPFx

PnP SPFx Controls

PnPJs

Fluent UI

Microsoft Graph API

Web Parts

REST APIs

Git

CI/CD

Polish language

English

Tools

TanStack Query

Redux Toolkit

Zod

Power Platform

Job description

We are looking for an experienced SharePoint Front-end Developer to join our team and work on innovative solutions for SharePoint Online. In this role, you will be responsible for developing and maintaining the frontend layer of a Knowledge Base using SharePoint Online, collaborating with backend teams and analysts to ensure high-quality and efficient solutions. If you are passionate about creating impactful SharePoint applications, this opportunity may be the right fit for you.

Your tasks

• Developing and maintaining the frontend layer of a Knowledge Base based on SharePoint Online
• Designing and implementing SPFx and React components
• Integrating with Microsoft 365 services and internal system APIs
• Collaborating with backend teams, analysts, and UX designers
• Ensuring the quality, performance, and usability of the solution

Requirements

• Minimum 5 years of experience in creating SharePoint Online solutions using SPFx, React, and TypeScript
• Very good knowledge of PnP SPFx Controls, PnPJs, Fluent UI, and Microsoft Graph API
• Experience in creating Web Parts, forms, and business components for SharePoint Online
• Experience in integrating applications with REST APIs
• Familiarity with Git and CI/CD processes
• Advanced level of Polish and residence in Poland
• Intermediate level of English

Nice to have

• Knowledge of TanStack Query, Redux Toolkit, or Zod
• Experience with Power Platform
• Experience in intranet projects, knowledge portals, or SharePoint Online-based solutions

Job no. JOB-P9DLY

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care