---
title: Microsoft 365 Application Development
description: Discover how we build enterprise-ready Microsoft 365 apps—secure, maintainable, and AI-enabled. Explore custom SharePoint, Power Platform, Teams, and API integrations designed for real business impact and long-term success.
url: https://www.malachis.eu/en-US/microsoft365-application-development
modified: 2026-06-30
---

## Custom Microsoft 365 Application Development

We build **enterprise‑ready applications** on top of Microsoft 365 that solve real business problems—**not demos or experiments**. Our solutions are designed for **maintainability, security, and long‑term use**, with clear documentation and predictable operations.

We specialize in building solutions based on:

-   **SharePoint Online** and modern site architecture
-   **SharePoint Framework (SPFx)** for high‑quality web parts and extensions
-   **Power Platform** (Power Apps, Power Automate) for rapid delivery and process automation
-   **Microsoft Graph** for secure, standardized access to Microsoft 365 services

Where appropriate, we also design solutions that support **AI‑enabled productivity** by improving information structure and enabling “Copilot‑ready” usage patterns (clear permissions, searchable metadata, consistent content structures).

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### What We Deliver

#### Custom SharePoint Online Solutions & SPFx Components

We develop modern **SharePoint Online web parts and extensions** that integrate naturally into the Microsoft 365 user experience, aligned with Microsoft’s modern development model.

This includes:

-   SPFx web parts for dashboards, portals, and task‑focused experiences
-   Extensions (when appropriate) with emphasis on performance and UX
-   Data access using REST / PnPjs / Microsoft Graph patterns

#### Internal Business Applications (HR, Education, Reservations, Governance)

We build internal applications that streamline business operations and improve transparency—typical scenarios include:

-   HR and internal communications tooling
-   Education and training registration/management
-   Reservations (rooms, vehicles, equipment)
-   Governance and operational support apps that reduce manual admin work

#### Power Apps & Power Automate Solutions

When the best solution is low‑code, we deliver robust Power Platform implementations:

-   Power Apps tailored to business workflows
-   Power Automate flows with attention to lifecycle, reliability, and auditability
-   Integration patterns that keep solutions maintainable over time

#### Microsoft Teams & OneDrive Integrations

We integrate solutions into the tools users actually work in:

-   Teams‑aware experiences (surfacing SharePoint content and business actions)
-   OneDrive and SharePoint document experiences optimized for collaboration
-   Operational patterns that respect governance and lifecycle rules

#### Secure API‑Based Integrations (External Systems)

Where external connectivity is required, we design **secure integration layers**:

-   API integrations with controlled identity and least‑privilege permissions
-   Robust error handling, throttling awareness, and operational logging patterns
-   Clear separation between tenant data and external systems

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### Security & Privacy by Design

We follow Microsoft best practices and apply secure engineering principles throughout delivery—identity, permissions, and data boundaries are treated as first‑class architecture decisions.

For SPFx solutions specifically, your established posture is clear and strong: **applications operate within the customer’s tenant**, and data remains stored and processed in Microsoft 365—supporting GDPR/EU privacy expectations and minimizing unnecessary data exposure.

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### Enterprise Delivery Standards (How We Work)

Our delivery approach is built for real production environments:

-   **Maintainable architecture** (clear structure, versioning, and lifecycle)
-   **Documentation‑driven handover** (so IT can operate the solution confidently)
-   **Deployment & tenant app catalog readiness** (packaging, governance alignment)
-   **Security & compliance alignment** from the start, not at the end

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### Optional: CSP‑Backed Delivery & Ongoing Support

As you present across your site, Malach IS operates as a **Microsoft Cloud Solution Provider (CSP)**—which enables a practical “single partner” model: licensing + delivery + operational support aligned under one accountable team.