Available for freelance projects
Mexico City · Remote Ready

RaymundoSolis

Senior .NET & Full-Stack Developer

8+ years building robust backend systems, APIs, and enterprise-grade applications. Specialized in C# / .NET Core, cloud architectures on Azure & AWS, and clean microservices design. Delivered solutions across insurance, health, fintech, and government sectors.

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8+
Years of Experience
50%
Performance Gains Delivered
7
Industries Served
10+
Technologies Mastered
C# & .NET Core ASP.NET Web API Microsoft Azure AWS / EC2 / DynamoDB SQL Server Microservices RESTful APIs Angular & ReactJS Python Java Agile / Scrum CI/CD / Jenkins C# & .NET Core ASP.NET Web API Microsoft Azure AWS / EC2 / DynamoDB SQL Server Microservices RESTful APIs Angular & ReactJS Python Java Agile / Scrum CI/CD / Jenkins
What I Do

Freelance Services

01
⚙️

Backend Development

Scalable APIs, microservices, and enterprise systems built with .NET Core and C#. Clean architecture, SOLID principles, and production-grade reliability.

.NET Core C# ASP.NET LINQ
02
☁️

Cloud Architecture

Deploy and optimize cloud workloads on Azure and AWS. EC2, DynamoDB, Azure Services — I build resilient, cost-effective infrastructure.

Azure AWS DynamoDB EC2
03
🔗

API Design & Integration

RESTful and SOAP API design, third-party integrations, migrations, and real-time data synchronization across platforms — including Azure API upgrades.

REST SOAP API Migration
04
🖥️

Full-Stack Development

End-to-end web applications combining .NET backends with Angular, ReactJS, or Vue.js frontends. Modular architectures built for maintainability.

Angular ReactJS Vue.js
05
🗄️

Database Engineering

SQL Server design, query optimization, ADO.NET data layers, and NoSQL with DynamoDB. Proven results: 25% query time reduction and 30% efficiency gains.

SQL Server NoSQL ADO.NET
06
🔄

Legacy System Migration

Smooth migrations from outdated systems to modern .NET stacks. I've led POS migrations, Azure API upgrades, and monolith-to-microservice transitions.

Migration Microservices Refactoring
Track Record

Work Experience

Chubb
Sep 2024 – Present
Current

Full-Stack Developer

  • Engineered modular web application architecture with .NET, cutting development time by 20%
  • Integrated RESTful APIs for insurance claims processing — 30% efficiency increase
  • Led API migration from Azure 1.9 to 2.0 with minimal downtime
Globant
May 2021 – Jun 2024

Sr. .NET Developer

  • Enhanced system performance by 50% and reduced runtime errors by 30% via ASP.NET & C#
  • AWS expertise: EC2 deployments and DynamoDB optimization
  • Reduced query execution times by 30% with LINQ-based .NET Core APIs
  • Interim team lead — delivered key milestones two weeks ahead of schedule
Softtek
Oct 2020 – May 2021

Sr. .NET Developer

  • End-to-end microservices with .NET Core and Java — 20% reduction in response time
  • Multi-tier .NET application with 30% faster transaction processing
  • Agile team lead: projects consistently delivered ahead of deadlines
VFMexico
Jul 2019 – Sep 2020

Analyst Programmer

  • C# / SQL Server solutions for credit payments and collections — 15% error reduction
  • ADO.NET data access layer cut database query time by 25% in 6 months
  • Systematized GitHub-based workflow, accelerating release cycles by 15%
NTT DATA
Apr 2019 – Jul 2019

Sr. .NET Developer

  • Led Shell's POS system migration on .NET Framework — 25% performance improvement
  • Improved cross-region data handling by 25% using ASP.NET & SQL Server
Ciudad Talento
Oct 2018 – Apr 2019

.NET Developer

  • ASP.NET web app serving 2,000+ concurrent users with 30% better POS performance
  • High-availability e-commerce app: 20% faster transactions, 99.9% uptime
Healthcheck
Apr 2017 – Oct 2018

Full-Stack Developer

  • Full-stack app in C#, Angular, SQL Server — 35% user engagement increase
  • Modular monolith migration; Firebase Analytics cut crash rates by 15%
C5 CDMX
Feb 2015 – Apr 2017

Programmer

  • RESTful & SOAP endpoints integrated with government systems — 15% latency reduction
  • C# and Java applications with 30% increase in processing efficiency
  • SQL Server query tuning reduced report generation time by 20%
Technical Profile

Skills & Expertise

Core Competencies
C# / .NET Core
96%
ASP.NET / APIs
94%
SQL Server
90%
Microsoft Azure
85%
AWS
80%
Python
72%
Java
70%
Angular / React
68%
Certifications
🏆
Azure Fundamentals
Microsoft Certified
2022
🏆
Scrum Fundamentals
SCRUMstudy
2019
Full Technology Stack
C# .NET Core .NET Framework ASP.NET Web API LINQ ADO.NET Entity Framework Microsoft Azure AWS EC2 DynamoDB SQL Server Python Java Angular ReactJS Vue.js RESTful APIs SOAP Services Microservices Jenkins GitHub Jira Confluence Agile/Scrum Kanban Firebase
Languages
🇲🇽 Spanish — Native 🇺🇸 English — B1+ 🇯🇵 Japanese — A1
Education
🎓
Informatics
Universidad de Londres · Mexico City
2021
🎓
Computer Science
University of Mexico · Mexico City
2014
Get in Touch

Let's Build
Something Great

Available for freelance contracts, consulting engagements, and long-term remote collaborations. Fluent in English, based in Mexico City, and experienced working across time zones.

📧
luissol@hotmail.com
📱
+52 55 4436 2397
🔗
linkedin.com/in/raymundo-solis
📍
Mexico City, Mexico — Remote Worldwide