Squale Software
Full‑stack & back‑end software engineering
We deliver back‑end‑heavy, full‑stack software for fintech, energy trading, telecom, retail and media clients — from data‑critical .NET and Python back‑ends.
What do we deliver
End‑to‑end software delivery — from spec to production.
Back‑end & API development
Robust, well‑tested APIs and services in .NET or Python — the backbone client apps and integrations run on.
Systems integration & migration
Connecting legacy systems, payment processors and third‑party APIs; migrating monoliths to microservices without breaking the business.
Data & messaging architecture
SQL/NoSQL data modeling and event‑driven architectures (RabbitMQ, Kafka) built to scale with the business, not against it.
Cloud‑native delivery
Containerized, CI/CD‑driven deployments on Docker/Kubernetes — reproducible environments from laptop to production.
Technical & functional analysis
Specs that both the business and the dev team can read — requirements gathering, data modeling and solution design before a line of code is written.
AI‑assisted development
Faster delivery without cutting corners, pairing modern AI tools (Claude Code) with two decades of hands‑on engineering judgment.
Selected engagements
Client work delivered since 2009.
Elia
Full‑Stack Developer
Monitoring applications for the National Control Center: capacity calculation, critical network element flow management, minimum remaining margin reduction and industrial valuation calculation.
.NET 6/8/10 · Web API · microservices · OAuth · MongoDB · RabbitMQ · Redis · Dapr · WPF/Prism/Telerik · Python · PyPowsybl
Engie
Back‑End Developer, Tester, Functional/Technical Analyst, IT Operator
Applications for traders and pre‑traders in the global energy market: power plant asset modeling, asset hedging, market data management, order booking, deal tracking and portfolio management.
.NET Fx 4.7 / 5/6/8 · Web API · OAuth/Okta · SQL Server · MongoDB · RabbitMQ · Redis · Kafka · Docker · K8s · Rancher · Python · FastAPI
Interparking
Back‑End Developer, Tester
Batch generation of monthly corporate invoices in PDF, a Payment Hub connected to payment service processors, and .NET connectors to SAP S4 as part of a migration from SAP ECC.
.NET Core 3.1 · Web API · MediatR · NServiceBus · Azure Service Bus · SQL Server · Flyway · Entity Framework · SAP OData
Ingenico Group
Back‑End Developer, Tester
Server‑to‑server electronic payment methods.
.NET Core 2.1 · Web API · Microservices · Swagger · SQL Server · Autofac · Dapper
VOO / Be tv
Web API Developer, Integrator, Tester, Technical Analyst
Revamp and maintenance of the B2C web applications: sales, self‑care and FAQ.
.NET 4.6.2 · Web API · NodeJS · MongoDB · Redis · AngularJS · React/Redux
Delhaize Group
.NET Developer
Windows‑embedded application for point‑of‑sale terminals, adding price look‑up and returns handling on top of the existing POS software.
C# · C++ · .NET · Windows API · WinForms · POS Ready · SQL Server 2008
RTL Belgium
Web Developer
Intranet web application automating page layout for two web‑radio sites: task scheduling and event synchronization.
.NET 4.5 · ASP.NET MVC 4 · Web API · SignalR · WCF · AngularJS · Knockout · SQL Server 2008
VOO / Be tv
Web Developer, Technical Analyst
Web application suite for a media broadcaster using Single Sign‑On authentication: sales and self‑care applications.
.NET 4.5 · ASP.NET MVC 4 · WCF · SOAP · SSO/WS‑Federation · Entity Framework 5 · AngularJS · SQL Server 2008
Test‑Achats / Test‑Aankoop
Lead Web Developer, Technical Analyst
Led an international (BE/IT/ES/PT/BR) team of web developers building a new MVC‑based web framework with the architects.
C# · .NET 4.0 · ASP.NET MVC 3 · WCF · Windsor Castle · SQL Server 2008 · Agile XP/Scrum
Belgacom
Web Developer, Technical Analyst
Hosting management system for web servers — DNS/xDSL provisioning, disk space and resource allocation — plus PHP client‑support and webmail sites.
C# · .NET 3.5 · ASP.NET MVC 1.0 · Oracle 9 · NHibernate · PHP 5.3 · MySQL
BPost
Developer
Smart‑client application for managing banking operations across the Belgian post offices.
C# · Enterprise Library · Smart Client Software Factory · SQL Server 2005 · Message Queues · Tuxedo
Indoor Media Company
Functional/Technical Analyst, Developer, Tester · part‑time
Windows applications for managing advertising display campaigns, plus maintenance of marketing‑campaign and contacts‑management tools.
C# · .NET 1.1 · WinForms · ADO.NET · SQL Server 2000 · VBA Access
European Food Safety Authority
Technical Analyst, Developer · part‑time
WinForms management system for PDF documents, on a 3‑month project.
C# · .NET 1.1 · WinForms · XML · axPDFViewer
Bureau van Dijk Electronic Publishing
Technical Analyst, Developer Employee
Now part of Moody's Analytics. Basel II‑compliant banking web apps — credit‑risk scoring and custom financial models (2005–2008); financial/accounting publishing platforms (2004–2005); financial‑data publishing and indexation systems (2001–2004).
C# · ASP.NET 1.1 · Visual C++ · SQL Server 2000 · Web Services · UML
Side projects
Cash Feez
A self‑hosted app that ingests bank/VISA statement PDFs and restaurant ticket photos, extracts structured data with the Claude API, and reconciles card charges against tickets — tips, splits and cash spending included. Built end‑to‑end: FastAPI + PostgreSQL + Celery backend, Vue 3 frontend, a Flutter companion app, and a Kubernetes deployment with self‑hosted OIDC login.
JCM-web
A crane‑sourcing intelligence platform: connectors scrape crane listings from dealers, auctions and public sales, rank buying opportunities against market and Argus pricing, and build a database of buyer and seller companies for outreach. .NET 10 Web API + Blazor Server, MongoDB‑backed.
Geo Listener
A location‑tracking system: native agents on Windows, Linux and Android report device location traces to a self‑hosted backend, visualized in a companion Flutter app across mobile, web and desktop.
Photo Redactor
A standalone photo‑redaction microservice: detects logos, license plates and identifying text in equipment photos and inpaints over them automatically. FastAPI + Celery pipeline with CV/ML models, plus an Electron desktop client.
CV Revamp
An AI‑assisted CV editor: extracts metadata, sections and photo from an uploaded PDF, lets you refine and proofread each section with Claude, then regenerates a fully redesigned PDF from a free‑text design brief — with an automatic self‑repair pass if the AI‑generated layout breaks text flow.
Tools of the trade
A working set built up over 25 years — still growing.
Languages
Backend & architecture
Frontend
Data & storage
DevOps & cloud
AI-assisted dev
Methodology
Testing
Platforms & IDEs
Let's talk about your next project
We are available for new engagements — back‑end‑heavy, full‑stack, or anything that needs a senior consultant who can read a spec and talk to the business as well as write the code.