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Form follows function.

Hi, I'm Killian Chandeze

Software Engineer C#/.NET

3+ years building robust, scalable, and data-driven solutions in IT, supply chain, and finance. Skilled in RESTful APIs, SQL/NoSQL, cloud-native applications, and performance optimization.

About

Hi, I'm Killian, a Software Engineer from France, currently based in Malaysia. My goal is to build collaborative and impactful solutions that address real-world and future challenges.

I specialize in .NET technologies and work across the full stack, though I have a strong preference for backend development. That's where I find the real art and enjoyment of programming. I also have a data analyst background from my studies, and I enjoy combining both skill sets in projects.

Beyond coding, I'm passionate about finance , problem‑solving , new technologies , and exploring anything that sparks curiosity .

Key strengths
Adaptability Analytical Thinking Resilience Collaboration Continuous Learning
Portrait of Killian Chandeze

Technical Skills

Languages & Frameworks

C# / .NET (Core, Framework, 8+)ASP.NET (Core, MVC, Web API)Python (NumPy, Pandas, Scikit-learn)TypeScript / JavaScript (Angular)JavaBash / PowerShell

Databases & Data Access

SQL Server (T-SQL)PostgreSQL / MySQLEntity Framework (Core)Dapper (Micro-ORM)LINQ / ADO.NETRedis / MongoDBAzure Cosmos DB

Backend & Architecture

RESTful APIs / GraphQLgRPC / SignalR (WebSocket)MediatR (CQRS)Clean Architecture / DDDMicroservicesDesign Patterns (SOLID, GoF)Repository Pattern

Cloud, DevOps & Infrastructure

Azure (App Service, Functions, DevOps)AWS (EC2, S3, Lambda)Docker / KubernetesCI/CD (Azure DevOps, GitHub Actions)Terraform / AnsibleNGINX / IISLinux / Windows Server

Testing, Quality & Monitoring

xUnit / NUnit / MSTestMoq / NSubstitutePostman / SwaggerSonarQube / BenchmarkDotNetSerilog / Application InsightsPrometheus / GrafanaELK Stack

Security, Auth & Methodologies

JWT / OAuth 2.0 / OpenID ConnectIdentity Server / Azure ADAgile / Scrum / KanbanTDD / BDD / CI/CDCode Review / Pair ProgrammingSSIS / Talend (ETL)Power BI / Tableau

Professional Experience

Software Engineer

Kuala Lumpur, Malaysia
Freelance
Sep 2024 — Present
  • Architected C# (.NET 8) backends with normalized SQL Server (3NF) databases, optimizing performance via strategic indexing and query tuning.
  • Engineered secure ASP.NET Core RESTful APIs with Clean Architecture, JWT authentication, input validation, and rate limiting.
  • Established robust Azure DevOps CI/CD pipelines: automated builds, xUnit testing (85%+ coverage), Docker containerization, and deployment.
  • Developed responsive Angular front-end modules integrated with backend APIs, reducing page load times by 27% and enhancing user experience.
  • Integrated Stripe and crypto payment gateways, ensuring PCI-compliant secure transaction handling and comprehensive error management.
C# / .NET 8 ASP.NET Core REST APIs SQL Server (Indexing/3NF) Docker Kubernetes Azure DevOps CI/CD Entity Framework Core LINQ xUnit

Software Engineer

Kuala Lumpur, Malaysia
Freelance
Dec 2023 — Aug 2024
  • Built multi-threaded C# scoring engine integrating Python for quantitative analysis, implementing market, fundamental, and technical valuations.
  • Designed ETL pipelines processing real-time market data via REST/WebSocket, utilizing PostgreSQL for persistence and Redis for caching.
  • Applied advanced statistical models (regression, volatility) to calculate risk-adjusted metrics like Sharpe ratio and maximum drawdown.
  • Created backtesting framework with walk-forward optimization to validate algorithmic strategies across diverse market conditions.
C# / .NET Python WebSocket ETL Pipelines PostgreSQL Redis Entity Framework Core LINQ Azure DevOps Agile / Scrum

Software Engineer

Lorient, France
AUSY
Feb 2023 — Nov 2023
  • Designed supply chain optimization algorithms using advanced routing techniques, reducing delivery times by ~30% and boosting efficiency.
  • Developed enterprise WPF (MVVM) application for production tracking, integrating Entity Framework and LINQ for complex data operations.
  • Architected containerized ASP.NET microservices with Docker, implementing service communication, health checks, and scalable architecture.
  • Led Agile SDLC using Azure DevOps: managed sprint planning, Git versioning, automated testing pipelines, and CI/CD workflows.
  • Refactored legacy codebase using SOLID principles and design patterns, significantly improving maintainability and reducing technical debt.
C# / .NET WPF (MVVM) Entity Framework LINQ ASP.NET Microservices Docker Azure DevOps Code Optimization

Software Developer & Data Analyst

Clermont-Ferrand, France
Michelin
Apr 2022 — Jul 2022
  • Optimized critical Oracle PL/SQL procedures, improving log processing reliability by ~45% through query tuning and execution plan analysis.
  • Built real-time C# WPF monitoring dashboard with live visualization, enabling production teams to track machine status and KPIs.
  • Automated IT operations via PowerShell and C# tools for Active Directory management, database maintenance, and system administration.
  • Created SQL Server data export tools implementing CSV/VCF contact management with automated PowerShell scheduling.
  • Designed ETL processes and Power BI dashboards with DAX, delivering actionable operational metrics to multiple departments.
Oracle PL/SQL SQL Server ETL Power BI C# / .NET Framework PowerShell Automation Data Quality KPIs / DAX

Local Area Network Technician

Clermont-Ferrand, France
Michelin
Mar 2019 — Jun 2019
  • Automated server maintenance using VBScript and batch scripting, ensuring high availability of critical production infrastructure.
  • Configured Synology NAS systems for centralized storage, implementing backup strategies and access controls for production servers.
  • Developed VBScript automation for rapid machine deployment, significantly reducing setup time and ensuring consistent configurations.
  • Administered Active Directory Domain Services, managing user accounts, policies, and security settings for robust access control.
  • Configured DNS, DHCP, TCP/IP, and remote access services, optimizing network performance and troubleshooting connectivity.
Server Administration Automation (VBS) Synology NAS Active Directory (AD DS) DNS TCP/IP VNC / RDP Network Security

Computer Repair Technician

Clermont-Ferrand, France
MediaPC
Apr 2018 — Apr 2018
  • Performed comprehensive hardware/software diagnostics on 15+ laptops, resolving component failures and configuration issues.
  • Executed clean OS installations, driver configurations, and system optimizations to restore performance for residential and business clients.
  • Removed malware and viruses using industry-standard tools, implementing preventive security measures to protect client systems.
  • Delivered exceptional customer service, explaining technical issues clearly and ensuring client satisfaction with repair outcomes.
Hardware Diagnostics Troubleshooting OS Installation Driver Configuration Malware Removal Data Recovery Customer Support Technical Documentation

Education

Specialization, Financial Engineering and Risk Management

Remote
Columbia University
Mar 2025 — Present
  • Studying advanced quantitative methods for financial engineering, derivatives pricing, and risk management.
  • Learning stochastic calculus and mathematical modeling for option pricing and portfolio optimization.
  • Implementing Monte Carlo simulations (5,000+ iterations) for complex financial instruments valuation.
  • Understanding Value at Risk (VaR), Credit Risk, and Market Risk measurement and management techniques.
  • Building financial models using Python with real market data for practical applications.
Python (NumPy/Pandas) Financial Engineering Risk Management Derivatives Pricing Stochastic Calculus Monte Carlo Methods VaR & Credit Risk

PGCert, Full-Stack Software Engineering

Lorient, France
Microsoft
Sep 2022 — Feb 2023
  • Mastered OOP principles (encapsulation, inheritance, polymorphism) to build scalable and maintainable .NET solutions.
  • Developed strong problem-solving and algorithm design skills, optimizing code performance by 30-40%.
  • Built 3+ full-stack applications using .NET/ASP.NET Core with Clean Architecture and CQRS patterns.
  • Implemented comprehensive testing strategies (80%+ code coverage) using xUnit and Moq to ensure code quality.
  • Completed capstone project: autonomous agent system demonstrating advanced software engineering principles.
C# / .NET 6+ ASP.NET Core Clean Architecture CQRS Pattern Entity Framework Core xUnit / Moq Docker Azure DevOps

B.Sc. Business Analytics and Statistics

Aurillac, France GPA: 3.6/4.0
University Clermont Auvergne
Sep 2020 — Jun 2022
  • Developed proficiency in Python, R, Java, and SQL for data analysis and statistical modeling.
  • Applied statistical methods including Monte Carlo simulations and predictive modeling on datasets of 1,000+ records.
  • Created ETL pipelines and interactive Power BI dashboards transforming data into actionable business insights.
  • Studied cryptographic algorithms (RSA, AES, Diffie-Hellman) and implemented secure data handling in 2 projects.
  • Final year project: Built a 'Guessing Game' in Python demonstrating probability theory and game logic implementation.
Python R Java SQL Statistical Modeling Power BI ETL Data Visualization Cryptography

S.H.S. Computer Networking & Communication Systems

Clermont-Ferrand, France GPA: 3.7/4.0
Lycée Camille Claudel
Sep 2017 — Jun 2020
  • Learned IPv4 and IPv6 protocols, including subnetting (CIDR/VLSM) and IP address management.
  • Studied the OSI model and TCP/UDP transport protocols for network communication.
  • Configured VPNs and implemented tunneling protocols (IPSec, GRE) in lab environments.
  • Practiced network security with firewalls, ACLs, and NAT/PAT configurations.
  • Completed hands-on projects with Cisco routers and switches using Packet Tracer for 10+ network topologies.
IPv4/IPv6 CIDR/VLSM TCP/UDP Routing (OSPF/BGP) VLANs VPN (IPSec/GRE) Firewall/ACL/NAT Cisco Packet Tracer

Projects

Achievements

Languages

  • French C2 - Native
  • English C1 - Proficient

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