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Karim Hadj-AissaKH

Karim Hadj-Aissa

Expert Sage 100 Developer (Business Objects / API)

€890/day
Lens, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Karim

Expert Sage 100 Developer (Business Objects / SDK / API) – CRM & Interfaces

I support SMEs/mid-sized companies using Sage 100 (Accounting & Commercial Management) to ensure data reliability and accelerate their processes throughcustom developmentsand **robust integrations**.

My interventions cover:
  • **Specific Sage 100 Developments**: screens, processes, business rules, automations, internal tools
  • **Custom CRM directly connected to Sage 100 Commercial Management**: synchronization of customers/prospects, quotes, orders, invoices, statuses, sales tracking, and indicators
  • **Interfaces & Connectors**: Sage 100 ↔ CRM / e-commerce / WMS / internal applications
*APIs & Services**: design/consumption of **REST APIs(authentication, error handling, versioning), secure data exchange
  • **Data & SQL**: SQL Server (T-SQL), complex queries, optimization, indexing, integrity control
  • **Data Migration / Transfers**: mapping, checks, bulk loading, historical data transfer

Approach focused on **reliability, performance, and data quality**: reduction of re-entry, automation of workflows, traceability, time savings for teams, and better management visibility.

Positioning: development only (no training).
Strategic projects, budgets generally > **€10k**.
  • French

    Native or bilingual

Can work on-site
Lens (up to 50km)

Experience

  • NetSoftPro France (NSPF)
    Technical Director | Sage 100 Expert (Business Objects) | API & Interfaces
    SOFTWARE PUBLISHING
    March 2025 - Today (1 year and 5 months)
    Lens, France
    Expert Sage 100 Developer (Business Objects / SDK / API)

    I supportSage integrators and SMEs/mid-sized companiesonextensionandcustom applicationprojects aroundSage 100 Accounting & Sage 100 Commercial Management.

    My goal: **secure and accelerate deployments**, eliminate re-entry, ensure workflow reliability, and deliver robust solutions ready for industrialization (client environment, multi-warehouse, large volumes, historical data transfer).

    What I most often do for your clients:

    *On-premise CRM in real-time connection with Sage 100 Commercial Management:synchronization of customers, items, sales documents, opportunity tracking, and sales management.

    *Specific Sage 100 Developments:business modules, screens, processes, business rules, internal tools.

    *Interfaces & Integrations:Sage 100 ↔ CRM / e-commerce / WMS / internal applications.

    *APIs & Services:design/consumption of REST APIs (authentication, error handling, versioning).

    *Automation & Reliability:scheduled batch jobs, import/export, logs, email alerts, consistency checks, and anti-duplication.

    *Data Migration & Transfers:mapping, integrity checks, bulk loading, historical data transfer.

    *Data & SQL Server (T-SQL):complex queries, performance optimization, data quality, and traceability.


    Positioning:development only (no training).
    Interventions as integration support (expert or fixed-price), on strategic projects, generally > **€10k**.
    C# (or C# .NET) Data Integration / ETL Web API, REST, API Data Import / Export CRM, WMS, EDI
  • Sage 100C
    Expert Sage 100 Developer (Business Objects)
    SOFTWARE PUBLISHING
    October 2024 - March 2025 (5 months)
    Lens, France
    Sage 100 Expert (Accounting & Commercial Management)**: development of **customextensions and tools using **Business Objects (OM/SDK)**, integrations with third-party applications, automation (scheduled tasks/jobs), and **workflow reliability**.

    Creation ofreporting/BIand **SQL optimization (T-SQL)**.

    Technical Stack: C# / .NET, WinDev, SQL Server**, with **PHP / MySQLas needed.
    Sage 100 Business Objects C# WINDEV PHP/MySQL SQL Server (T-SQL)
  • Koesio
    Sage 100 Integration Developer (Business Objects & API)
    SOFTWARE PUBLISHING
    August 2022 - October 2024 (2 years and 2 months)
    Antibes, France
    Development of interfacesbetweenSage 100 Accounting / Commercial Managementand third-party solutions (e.g., **Yooz, Zeendoc**, etc.).

    Automated accounting entry importsvia scheduled tasks for a multi-site interface (approx. **50 clinics**) with advanced controls:


    • duplicate detection,
    • existence check before import (customers, accounting accounts, journals, analytical sections),
    • verification of unbalanced entries and VAT code consistency,
    *email alertingin case of anomalies (recipient + copy),
    • **log management and archiving**.

    Sage 100 Commercial Management Automation (Business Objects):creation of customers andsales documentsfrom files uploaded toFTP(scheduled tasks, seamless integration).

    Purchasing / Procurement Automation (retail):automatic generation ofpurchase order preparationsbased on stock levels for a DIY store in Monaco (230,000+ items, **1 store + 4 warehouses**), with:


    • daily report generation for department managers (replenishment management),
    *automatic calculation and updateof min/max stock per item based onone year of sales(main warehouse).


    E-commerce Integration → Sage 100 Commercial Management:automatic creation ofcustomers and purchase ordersfrom e-commerce sites / platforms, with secure workflows and consistency checks.
    C# Development SQL Server Triggers Sage 100 Business Objects Batch Processing

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Education

  • Bac H (Management Information Systems)
    Lycée Guy Mollet Arras (62)
    1986
    Bac H (Informatique de Gestion) - Analyste Programmeur orienté Gestion comptabilité et base de données
  • HEC Preparatory Class
    Lycée Gaston Berger à Lille (59)
    1987
    Préparation aux Hautes Ecoles Commerciales

Certifications

  • CCS (Expert Consultant Trainer Sage Saari line 100)
    Sage France Aix-En-Provence
    1998
    SAP ERP Accounting Payroll Management Project Management sage 100 Fixed Asset Management Payment Methods Commercial Management SQL Server Data Recovery
  • CCS (Expert Consultant Trainer Sage Saari line 100)
    Sage France Lyon
    2008
    WinDev Developer Accounting ODBC EBICS Sage 100 ERP Payment Methods Fixed Assets Commercial Management SQL Server Reporting

Skill set

Categories