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Portfolio

Proof we get stalled projects moving

Legacy migrations, security audits, and team turnarounds — each one took a blocked modernization effort and shipped the outcome. Here is the work.

25+
Modernization projects shipped
CHF 2.0M
Cloud costs saved in 2024
2M+
Lines of code migrated
20K
Errors auto-fixed in one engagement
Customer success stories

Blocked projects, unblocked — with the numbers to show it

Each engagement below started with a modernization effort that had stalled, and ended with it delivered. The metrics are the real outcomes we measured on the project.

Defense & Aerospace

Adobe Flex to Angular Migration

Major French defense contractor facing Flash end-of-life challenges

500
Screens
80%
Automation
18mo
Timeline
  • 1M lines of code modernized
  • Java 6 → 11 upgrade
  • 4-person team during COVID
  • Led to 2 additional client wins
Banking & Finance

Banking Security Audit

Major European banking consortium eliminates critical security vulnerabilities

2 weeks
Audit Time
100%
Risks Fixed
25%
Debt Reduced
  • Critical structural risk detected
  • Comprehensive security assessment
  • CI/CD implemented
  • Security best practices diffused
Telecommunications

Enterprise Refactoring: 20K Errors Fixed

Global telecom provider automates refactoring, saving 95% time

20,000
Errors Fixed
3 weeks
Completion
95%
Time Saved
  • 11-14 person-months → 3 weeks
  • Zero downtime refactoring
  • Obsolete libraries eliminated
  • Faster functional evolution
Embedded Software & IoT

Software Factory Modernization

Scaling from startup to 80 developers across 2 sites

80
Developers
50%
Faster Delivery
20%
Productivity Gain
  • Unified development practices
  • Regression volume decreased
  • Real-time quality dashboard
  • 2 remote sites aligned
Enterprise Software

Progress to Java Migration

2M lines migrated from Progress to modern Java stack in 50 days

2M
Lines Migrated
50 days
Timeline
14,000
Files
  • Automated migration at scale
  • 450 scenarios validated
  • Legacy dependencies eliminated
  • Modern 3-tier architecture
Digital Security

Quality Audit for Outsourced Dev

Global security company validates vendor code quality

2 weeks
Audit Time
50%
Qualification Reduced
100%
Custom Rules
  • Pre-delivery quality validation
  • Custom coding rules enforced
  • Vendor guidance provided
  • Maintainability improved
SaaS Startup

Startup DevOps from Day One

2-4 developer team achieves enterprise-grade automation

2-4
Team Size
90%
Deploy Time Saved
20%
R&D Time Saved
  • 2 weeks testing → automated
  • 3 days deploy → 10 minutes
  • 50% test automation achieved
  • Competitive with major players
Our Services

Specialized IT Solutions

Comprehensive cloud optimization and migration services designed to reduce costs and accelerate digital transformation.

FinOps Cost Optimization

Fixed-price cloud cost optimization based on your Monthly Recurring Revenue

  • Real-time cost monitoring & alerts
  • Automated optimization recommendations
  • Monthly cost analysis & reporting
  • Average 25-40% cost reduction
Starting from CHF 500/month
New

AWS TCO Analysis

Comprehensive GCP to AWS migration cost analysis delivered in just 1-2 weeks

  • Service-by-service cost mapping
  • 3-year TCO projections & analysis
  • Migration risk assessment
  • Fixed ARR-based pricing
Starting from CHF 2,500
Project Timeline

My Professional Journey

A chronological showcase of my work in software modernization and technical innovation.

2025
Announcing the Byoskill Developer Tools Shop: Expert Solutions for Software Modernization

Announcing the Byoskill Developer Tools Shop: Expert Solutions for Software Modernization

Discover specialized developer tools created by a Swiss software modernization expert with 15+ years of experience. Streamline your code migration and technical debt management.

Read case study
Recent Project: Cross-Cloud PostgreSQL DR Setup (GCP to AWS)

Recent Project: Cross-Cloud PostgreSQL DR Setup (GCP to AWS)

Implementing Disaster Recovery for PostgreSQL using pgBackRest and Patroni across GCP and AWS.

Read case study
Announcing Our Partnership with OnlyWine Association

Announcing Our Partnership with OnlyWine Association

ByoSkill is proud to announce our partnership with OnlyWine, a Swiss wine culture association, providing technical and logistical support for their events and ecommerce initiatives.

Read case study
2022
Recent training : Gradle 2 days course in Switzerland

Recent training : Gradle 2 days course in Switzerland

Recent training : Gradle 2 days course in Switzerland

Read case study
2021
Salaire en Suisse : new website

Salaire en Suisse : new website

Salaire en Suisse : new website

Read case study
2020
FlexNG : Outil de transformation de code Adobe Flex vers Angular 8+

FlexNG : Outil de transformation de code Adobe Flex vers Angular 8+

FlexNG : Outil de transformation de code Adobe Flex vers Angular 8+

Read case study
Adobe Flex to Angular Migration: Complete Modernization Guide & Case Study

Adobe Flex to Angular Migration: Complete Modernization Guide & Case Study

Real case study: 500-screen Flex app (1M lines) migrated to Angular in 18 months. 80% automation, Java 6→11 upgrade. Defense sector success story.

Read case study
2019
Progress zu Java Migration: 2 Millionen Zeilen in 50 Tagen modernisiert

Progress zu Java Migration: 2 Millionen Zeilen in 50 Tagen modernisiert

Enterprise-Software-Publisher migriert 2M Zeilen von Progress zu Java mit 80% Automatisierung. Fallstudie eliminiert teure Legacy-Abhängigkeiten.

Read case study
Migration Progress vers Java : 2 Millions de Lignes Modernisées en 50 Jours

Migration Progress vers Java : 2 Millions de Lignes Modernisées en 50 Jours

Éditeur logiciel entreprise migre 2M lignes depuis Progress vers Java avec 80% automatisation. Étude de cas éliminant dépendances legacy coûteuses.

Read case study
Progress to Java Migration: 2 Million Lines Modernized in 50 Days

Progress to Java Migration: 2 Million Lines Modernized in 50 Days

Enterprise software publisher migrates 2M lines from Progress to Java with 80% automation. Real case study eliminating expensive legacy dependencies.

Read case study
Startup DevOps Transformation: Professionelle Software Factory von Tag Eins

Startup DevOps Transformation: Professionelle Software Factory von Tag Eins

SaaS-Startup implementiert Enterprise-Grade Software Factory mit 90% Zeitersparnis bei Deployments und 50% Testautomatisierung.

Read case study
Transformation DevOps Startup : Usine Logicielle Professionnelle dès le Premier Jour

Transformation DevOps Startup : Usine Logicielle Professionnelle dès le Premier Jour

Startup SaaS implémente usine logicielle niveau entreprise économisant 90% temps déploiements et 50% automatisation tests. Étude de cas avec avantage compétitif.

Read case study
Startup DevOps Transformation: Professional Software Factory from Day One

Startup DevOps Transformation: Professional Software Factory from Day One

SaaS startup implements enterprise-grade software factory achieving 90% time savings on deployments and 50% test automation. Real case study with competitive edge.

Read case study
Embedded Software Factory Modernisierung: Von Startup-Chaos zu Enterprise-Effizienz

Embedded Software Factory Modernisierung: Von Startup-Chaos zu Enterprise-Effizienz

Führendes Embedded-Software-Unternehmen modernisiert Entwicklungspraktiken für 80 Entwickler über 2 Standorte.

Read case study
Modernisation Usine Logicielle Embarquée : Du Chaos Startup à l'Efficacité Entreprise

Modernisation Usine Logicielle Embarquée : Du Chaos Startup à l'Efficacité Entreprise

Société leader logiciel embarqué modernise pratiques développement pour 80 développeurs sur 2 sites. Étude de cas avec régressions réduites et fréquence livraison améliorée.

Read case study
Embedded Software Factory Modernization: From Startup Chaos to Enterprise Efficiency

Embedded Software Factory Modernization: From Startup Chaos to Enterprise Efficiency

Leading embedded software company modernizes development practices to support 80 developers across 2 sites. Real case study with reduced regressions and improved delivery frequency.

Read case study
2018
Enterprise-Anwendungs-Refactoring: 20.000 Fehler in 3 Wochen mit Automatisierung behoben

Enterprise-Anwendungs-Refactoring: 20.000 Fehler in 3 Wochen mit Automatisierung behoben

Globaler Telekommunikationsanbieter automatisiert Anwendungs-Refactoring, reduziert 11-14 Personenmonate auf 3 Wochen.

Read case study
Refactoring d'Applications d'Entreprise : 20 000 Erreurs Corrigées en 3 Semaines avec l'Automatisation

Refactoring d'Applications d'Entreprise : 20 000 Erreurs Corrigées en 3 Semaines avec l'Automatisation

Fournisseur mondial de télécommunications automatise le refactoring d'applications, réduisant 11-14 personnes-mois à 3 semaines. Étude de cas réelle avec modernisation de code automatisée.

Read case study
Enterprise Application Refactoring: 20,000 Errors Fixed in 3 Weeks with Automation

Enterprise Application Refactoring: 20,000 Errors Fixed in 3 Weeks with Automation

Global telecommunications provider automates application refactoring, reducing 11-14 person-months of work to 3 weeks. Real case study with automated code modernization.

Read case study
Cleancode : feedback from my latest coaching

Cleancode : feedback from my latest coaching

Cleancode : feedback from my latest coaching

Read case study
Digital Security Anwendungsaudit: Qualität bei ausgelagerter Entwicklung sichern

Digital Security Anwendungsaudit: Qualität bei ausgelagerter Entwicklung sichern

Globales Sicherheitsunternehmen validiert ausgelagerte Entwicklungsqualität durch umfassende Code-Prüfung.

Read case study
Audit Qualité Application Sécurité Numérique : Garantir la Qualité du Développement Externalisé

Audit Qualité Application Sécurité Numérique : Garantir la Qualité du Développement Externalisé

Société mondiale de sécurité numérique valide la qualité du développement externalisé via audit de code complet. Étude de cas réelle réduisant l'effort de qualification et améliorant la maintenabilité.

Read case study
Digital Security Application Audit: Ensuring Quality in Outsourced Development

Digital Security Application Audit: Ensuring Quality in Outsourced Development

Global digital security company validates outsourced development quality through comprehensive code audit. Real case study reducing qualification effort and improving maintainability.

Read case study
Banking-Anwendungssicherheitsaudit: Online-Banking gegen kritische Schwachstellen sichern

Banking-Anwendungssicherheitsaudit: Online-Banking gegen kritische Schwachstellen sichern

Europäisches Bankenkonsortium eliminiert kritische Sicherheitsrisiken durch umfassende Code-Prüfung und kontinuierliche Integration.

Read case study
Audit de Sécurité d'Applications Bancaires : Sécuriser la Banque en Ligne contre les Vulnérabilités Critiques

Audit de Sécurité d'Applications Bancaires : Sécuriser la Banque en Ligne contre les Vulnérabilités Critiques

Un consortium bancaire européen élimine les risques de sécurité critiques grâce à un audit de code complet et l'intégration continue. Étude de cas réelle avec améliorations de sécurité.

Read case study
Banking Application Security Audit: Securing Online Banking Against Critical Vulnerabilities

Banking Application Security Audit: Securing Online Banking Against Critical Vulnerabilities

Major European banking consortium eliminates critical security risks through comprehensive code audit and continuous integration. Real case study with security improvements.

Read case study
A legacy Software migration checklist

A legacy Software migration checklist

A legacy Software migration checklist

Read case study
Project Gallery

All Projects

Browse through my complete portfolio of software modernization projects.

Announcing the Byoskill Developer Tools Shop: Expert Solutions for Software Modernization

Announcing the Byoskill Developer Tools Shop: Expert Solutions for Software Modernization

Discover specialized developer tools created by a Swiss software modernization expert with 15+ years of experience. Streamline your code migration and technical debt management.

Details
Recent Project: Cross-Cloud PostgreSQL DR Setup (GCP to AWS)

Recent Project: Cross-Cloud PostgreSQL DR Setup (GCP to AWS)

Implementing Disaster Recovery for PostgreSQL using pgBackRest and Patroni across GCP and AWS.

Details
Announcing Our Partnership with OnlyWine Association

Announcing Our Partnership with OnlyWine Association

ByoSkill is proud to announce our partnership with OnlyWine, a Swiss wine culture association, providing technical and logistical support for their events and ecommerce initiatives.

Details
Recent training : Gradle 2 days course in Switzerland

Recent training : Gradle 2 days course in Switzerland

Recent training : Gradle 2 days course in Switzerland

Details
Salaire en Suisse : new website

Salaire en Suisse : new website

Salaire en Suisse : new website

Details
FlexNG : Outil de transformation de code Adobe Flex vers Angular 8+

FlexNG : Outil de transformation de code Adobe Flex vers Angular 8+

FlexNG : Outil de transformation de code Adobe Flex vers Angular 8+

Details
Adobe Flex to Angular Migration: Complete Modernization Guide & Case Study

Adobe Flex to Angular Migration: Complete Modernization Guide & Case Study

Real case study: 500-screen Flex app (1M lines) migrated to Angular in 18 months. 80% automation, Java 6→11 upgrade. Defense sector success story.

Details
Progress zu Java Migration: 2 Millionen Zeilen in 50 Tagen modernisiert

Progress zu Java Migration: 2 Millionen Zeilen in 50 Tagen modernisiert

Enterprise-Software-Publisher migriert 2M Zeilen von Progress zu Java mit 80% Automatisierung. Fallstudie eliminiert teure Legacy-Abhängigkeiten.

Details
Migration Progress vers Java : 2 Millions de Lignes Modernisées en 50 Jours

Migration Progress vers Java : 2 Millions de Lignes Modernisées en 50 Jours

Éditeur logiciel entreprise migre 2M lignes depuis Progress vers Java avec 80% automatisation. Étude de cas éliminant dépendances legacy coûteuses.

Details
Progress to Java Migration: 2 Million Lines Modernized in 50 Days

Progress to Java Migration: 2 Million Lines Modernized in 50 Days

Enterprise software publisher migrates 2M lines from Progress to Java with 80% automation. Real case study eliminating expensive legacy dependencies.

Details
Startup DevOps Transformation: Professionelle Software Factory von Tag Eins

Startup DevOps Transformation: Professionelle Software Factory von Tag Eins

SaaS-Startup implementiert Enterprise-Grade Software Factory mit 90% Zeitersparnis bei Deployments und 50% Testautomatisierung.

Details
Transformation DevOps Startup : Usine Logicielle Professionnelle dès le Premier Jour

Transformation DevOps Startup : Usine Logicielle Professionnelle dès le Premier Jour

Startup SaaS implémente usine logicielle niveau entreprise économisant 90% temps déploiements et 50% automatisation tests. Étude de cas avec avantage compétitif.

Details
Startup DevOps Transformation: Professional Software Factory from Day One

Startup DevOps Transformation: Professional Software Factory from Day One

SaaS startup implements enterprise-grade software factory achieving 90% time savings on deployments and 50% test automation. Real case study with competitive edge.

Details
Embedded Software Factory Modernisierung: Von Startup-Chaos zu Enterprise-Effizienz

Embedded Software Factory Modernisierung: Von Startup-Chaos zu Enterprise-Effizienz

Führendes Embedded-Software-Unternehmen modernisiert Entwicklungspraktiken für 80 Entwickler über 2 Standorte.

Details
Modernisation Usine Logicielle Embarquée : Du Chaos Startup à l'Efficacité Entreprise

Modernisation Usine Logicielle Embarquée : Du Chaos Startup à l'Efficacité Entreprise

Société leader logiciel embarqué modernise pratiques développement pour 80 développeurs sur 2 sites. Étude de cas avec régressions réduites et fréquence livraison améliorée.

Details
Embedded Software Factory Modernization: From Startup Chaos to Enterprise Efficiency

Embedded Software Factory Modernization: From Startup Chaos to Enterprise Efficiency

Leading embedded software company modernizes development practices to support 80 developers across 2 sites. Real case study with reduced regressions and improved delivery frequency.

Details
Enterprise-Anwendungs-Refactoring: 20.000 Fehler in 3 Wochen mit Automatisierung behoben

Enterprise-Anwendungs-Refactoring: 20.000 Fehler in 3 Wochen mit Automatisierung behoben

Globaler Telekommunikationsanbieter automatisiert Anwendungs-Refactoring, reduziert 11-14 Personenmonate auf 3 Wochen.

Details
Refactoring d'Applications d'Entreprise : 20 000 Erreurs Corrigées en 3 Semaines avec l'Automatisation

Refactoring d'Applications d'Entreprise : 20 000 Erreurs Corrigées en 3 Semaines avec l'Automatisation

Fournisseur mondial de télécommunications automatise le refactoring d'applications, réduisant 11-14 personnes-mois à 3 semaines. Étude de cas réelle avec modernisation de code automatisée.

Details
Enterprise Application Refactoring: 20,000 Errors Fixed in 3 Weeks with Automation

Enterprise Application Refactoring: 20,000 Errors Fixed in 3 Weeks with Automation

Global telecommunications provider automates application refactoring, reducing 11-14 person-months of work to 3 weeks. Real case study with automated code modernization.

Details
Cleancode : feedback from my latest coaching

Cleancode : feedback from my latest coaching

Cleancode : feedback from my latest coaching

Details
Digital Security Anwendungsaudit: Qualität bei ausgelagerter Entwicklung sichern

Digital Security Anwendungsaudit: Qualität bei ausgelagerter Entwicklung sichern

Globales Sicherheitsunternehmen validiert ausgelagerte Entwicklungsqualität durch umfassende Code-Prüfung.

Details
Audit Qualité Application Sécurité Numérique : Garantir la Qualité du Développement Externalisé

Audit Qualité Application Sécurité Numérique : Garantir la Qualité du Développement Externalisé

Société mondiale de sécurité numérique valide la qualité du développement externalisé via audit de code complet. Étude de cas réelle réduisant l'effort de qualification et améliorant la maintenabilité.

Details
Digital Security Application Audit: Ensuring Quality in Outsourced Development

Digital Security Application Audit: Ensuring Quality in Outsourced Development

Global digital security company validates outsourced development quality through comprehensive code audit. Real case study reducing qualification effort and improving maintainability.

Details
Banking-Anwendungssicherheitsaudit: Online-Banking gegen kritische Schwachstellen sichern

Banking-Anwendungssicherheitsaudit: Online-Banking gegen kritische Schwachstellen sichern

Europäisches Bankenkonsortium eliminiert kritische Sicherheitsrisiken durch umfassende Code-Prüfung und kontinuierliche Integration.

Details
Audit de Sécurité d'Applications Bancaires : Sécuriser la Banque en Ligne contre les Vulnérabilités Critiques

Audit de Sécurité d'Applications Bancaires : Sécuriser la Banque en Ligne contre les Vulnérabilités Critiques

Un consortium bancaire européen élimine les risques de sécurité critiques grâce à un audit de code complet et l'intégration continue. Étude de cas réelle avec améliorations de sécurité.

Details
Banking Application Security Audit: Securing Online Banking Against Critical Vulnerabilities

Banking Application Security Audit: Securing Online Banking Against Critical Vulnerabilities

Major European banking consortium eliminates critical security risks through comprehensive code audit and continuous integration. Real case study with security improvements.

Details
A legacy Software migration checklist

A legacy Software migration checklist

A legacy Software migration checklist

Details

Ready to modernize your legacy systems?

Let's discuss how I can help transform your outdated software into modern, maintainable solutions.