JFJonathan Fainsilber
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Jonathan Fainsilber

Software Engineering Leader | Team Builder
📧 jonathan@fainsilber.co.il · 🌐 fainsilber.co.il · 🔗 LinkedIn

Summary

Experienced Software Team Lead with 18+ years in full-stack development, cloud-native architecture, and agile team leadership. Specializes in designing scalable systems using .NET, React, Azure/GCP, and microservices. Proven success in leading teams of up to 20, mentoring engineers, modernizing legacy systems, and delivering high-availability solutions. Drives AI-assisted development practices to accelerate delivery and raise quality. Passionate about clean architecture, developer growth, and performance optimization.

Technical Skills

Languages & Frameworks: C#, .NET, .NET Core, React, Java, JavaScript, Node.js, Angular, MVC, WPF
Architecture: Microservices, RESTful APIs, Cloud-Native Design, Legacy Modernization
AI-Assisted Development: GitHub Copilot, Claude Code, Atlassian Rovo, OpenAI Codex
Cloud & DevOps: Azure, GCP, Docker, Kubernetes, Helm, GitHub Actions
Messaging Systems: RabbitMQ
Performance: Multi-threading, Parallel Processing, System Optimization
Monitoring & Observability: Azure AppInsights, Log Analytics, Dynatrace, KQL, GCP LQL
Databases: SQL Server, T-SQL, Stored Procedures, Indexing & Query Optimization
Domain Expertise: Identity Governance & Administration (IGA), Access Certifications, Enterprise Security
Methodologies: SAFe, Scrum, Kanban, Agile Delivery

💼 Professional Experience

Software Development Team Lead

Pathlock, Israel | Dec 2025 – Present

  • Lead a team of 9 developers and 2 QA engineers owning the Certifications module of an enterprise identity governance platform, used by large organizations to review and verify user access.
  • Drive a full refactor of legacy code into a standalone, modern product, while supporting existing customers and continuing to ship new features.
  • Champion AI-assisted development across the team using GitHub Copilot and Atlassian Rovo.
  • Partner with Product Managers, Professional Services, customers, and Architects to deliver features and resolve production issues.
  • Mentor engineers and own quality and delivery for the team’s roadmap.

Software Development Team Lead

NCR Voyix, Israel | Apr 2021 – Nov 2025

  • Led Agile teams of 6–20 engineers (including QA, DevOps, Product, and Architects) within a SAFe framework to deliver aligned, high-quality releases.
  • Directed a multi-year migration from a monolithic Windows-based solution to a modern cloud-native microservices platform deployed on Linux.
  • Architected and delivered a high-performance retail backend system, now live in 700+ stores worldwide.
  • Implemented CI/CD pipelines using GitHub Actions and managed infrastructure on Azure and Google Cloud.
  • Conducted code reviews, mentored junior developers, and facilitated 1-on-1s to promote career growth.
  • Managed end-to-end hiring: wrote technical assessments, interviewed candidates, and onboarded new team members.
  • Worked directly with stakeholders to translate product goals into scalable software solutions.

Senior Software Engineer (Full Stack)

Mobileye, Israel | Nov 2017 – Mar 2021

  • Developed secure enterprise software for Mobileye aftermarket automotive units.
  • Built and maintained full-stack solutions using C#, .NET, Angular, MVC, and WPF.
  • Integrated encryption and access control to protect sensitive customer data.
  • Created Angular-based UI components and backend integrations.
  • Worked in close collaboration with product, QA, and architecture to ensure performance, reliability, and scalability.

Senior Software Engineer & Team Lead

National Paralegal College, Israel | Jan 2013 – Jul 2017

  • Led a cross-functional team of 3–5 developers using Scrum to deliver internal and customer-facing systems.
  • Built applications using .NET Core, Angular 2, Node.js, and SQL Server.
  • Oversaw integration of multiple 3rd-party platforms to enhance system capabilities.

Software Engineer (Full Stack)

Tradelogic – SmartBox Capital, Israel | Mar 2010 – Dec 2012

  • Developed web and Windows-based trading platforms using C#, JavaScript, and VB.NET.
  • Built and maintained WCF/ASMX web services for live financial systems.
  • Collaborated directly with traders to implement and automate trading strategies.
  • Led agile development pods of 3–5 engineers, with a focus on delivery speed and accuracy.

🎓 Education

B.Sc. in Computer Systems Engineering
ITESM (Monterrey Institute of Technology), Mexico

Studies in Quality Assurance and Reliability
Technion – Israel Institute of Technology

Languages

  • Spanish – Native
  • English – Fluent
  • Hebrew – Fluent
  • Portuguese – Proficient

Last updated: September 2026