José is currently unavailable
José René White Enciso
Verified Expert in Engineering
Back-end Engineer and Software Developer
Las Palmas De Medellin, Mexico
Toptal member since March 31, 2026
Bio
José René White Enciso is a senior back-end engineer specializing in .NET and distributed systems. He designs and builds scalable APIs and production systems, focusing on performance, reliability, and maintainability. He also contributes across the full stack using React and TypeScript when needed.
Portfolio
Upstart 13
.NET MAUI, Azure, Bluetooth Low Energy (BLE), SQL, C#, .NET, REST APIs...
Apex Systems
.NET, REST APIs, Azure, Amazon Web Services (AWS), CI/CD Pipelines, SQL, React...
ProKarma
Angular 5, Amazon Web Services (AWS), Azure, C#, CI/CD Pipelines, Docker, React...
Experience
- .NET - 11 years
- C# - 11 years
- SQL - 10 years
- REST APIs - 9 years
- Azure - 6 years
- Distributed Systems - 6 years
- Data Modeling - 5 years
- API Design - 5 years
Preferred Environment
React, C#, .NET, SQL, Azure
The most amazing...
...migration I've led was that of a production mobile platform from Xamarin to .NET MAUI, building back-end APIs and enabling geospatial and BLE integrations.
Work Experience
Staff Software Engineer
2023 - 2026
Upstart 13
- Directed the migration of a production mobile application from Xamarin to .NET MAUI, improving maintainability and platform alignment.
- Built back-end services and APIs using .NET to support mobile applications and data workflows in production.
- Replaced proprietary components with open-source alternatives, reducing licensing costs while maintaining functionality.
- Enabled Bluetooth Low Energy (BLE) communication for device integration and reliable data exchange in production.
- Designed and implemented reusable libraries shared across multiple applications, improving development efficiency.
- Contributed to architecture decisions and refactoring efforts across legacy and modernized systems.
Technologies: .NET MAUI, Azure, Bluetooth Low Energy (BLE), SQL, C#, .NET, REST APIs, Distributed Systems, API Design, Data Modeling, MacOS, RESTFul APIs, Microsoft SQL Server, Bluetooth, Legacy Code, C#.NET
Lead Consultant
2021 - 2023
Apex Systems
- Progressed from senior contributor to leading technical initiatives and client-facing responsibilities.
- Guided the design and implementation of back-end systems using .NET, aligning technical solutions with business requirements.
- Built a full-stack system from scratch to manage employee bonus tracking, implementing back-end services in .NET and front-end features for internal users.
- Drove technical design decisions and guided implementation to ensure reliability and maintainability in production.
- Provided architectural guidance, code reviews, and hands-on support to ensure delivery quality across teams.
Technologies: .NET, REST APIs, Azure, Amazon Web Services (AWS), CI/CD Pipelines, SQL, React, C#, API Design, RESTFul APIs, Microsoft SQL Server, Event-driven Architecture, C#.NET
Software Developer
2019 - 2021
ProKarma
- Developed back-end and full-stack solutions using .NET and SQL for clients across multiple industries.
- Designed and implemented APIs and application features to support client-specific requirements.
- Collaborated with cross-functional teams to deliver scalable and maintainable solutions in production environments.
Technologies: Angular 5, Amazon Web Services (AWS), Azure, C#, CI/CD Pipelines, Docker, React, Desktop App, RESTFul APIs, Microsoft SQL Server, PostgreSQL, GraphQL, C#.NET
Software Developer
2019 - 2019
CEMEX
- Architected and deployed back-end APIs using .NET, Azure, and SQL Server to support internal business applications.
- Migrated legacy applications to modern cloud-based architectures, improving scalability and reliability.
- Collaborated with business and technical teams to deliver production-ready solutions aligned with operational needs.
Technologies: Microsoft Power Apps, Azure, REST APIs, SQL, .NET, C#, Desktop App, Microsoft SQL Server, Legacy Code, C#.NET
Software Developer
2017 - 2019
Cienciamed
- Built a full-stack system from scratch using the .NET Framework and SQL Server to process genetic and clinical data.
- Developed data processing pipelines to analyze DNA data and generate structured insights for medical use.
- Implemented back-end logic to support predictive models for clinical decision-making.
- Generated automated PDF reports for pharmacological analysis and risk assessment based on processed data.
- Collaborated with medical professionals to translate domain-specific requirements into technical solutions.
Technologies: Angular 5, Azure SQL, Machine Learning, Azure, C#, .NET, Data Modeling, Microsoft SQL Server, Angular, C#.NET
Software Developer
2014 - 2017
World Software Services
- Developed enterprise applications using the .NET Framework and Java technologies for clients in banking and related industries.
- Engineered and maintained ETL pipelines and data processing workflows using enterprise tools.
- Implemented XML-to-PDF processing pipelines to support document generation for business use cases.
Technologies: C#, VB.NET, Java 8, Java EE 6, .NET, Enterprise Java Beans (EJB), JavaScript, jQuery, Desktop App, Microsoft SQL Server, Ledgers, Legacy Code, C#.NET
Experience
Mobile Platform Modernization
I led the migration of a mobile application from Xamarin to .NET MAUI, developing back-end APIs and enabling geospatial features and BLE hardware integration. I improved system maintainability and enabled scalable, production-ready solutions across mobile and back-end layers.
Bonus Opportunity Tracker (BOT)
I developed a full-stack bonus tracking system from scratch to manage employee compensation workflows. I designed and implemented a rules engine to calculate bonus eligibility based on business-defined criteria, ensuring accurate processing and data consistency in production environments.
Genetic Data Processing and Analysis Platform
I built a system to process genetic and clinical data, enabling the generation of structured insights for medical use. I implemented back-end services and data processing pipelines to support reliable analysis and reporting, including automated outputs for pharmacological and risk assessment.
Education
2009 - 2013
Bachelor's Degree in Computer Science
Technological Institute of Monterrey (ITESM) - Códoba, Veracruz, Mexico
Certifications
SEPTEMBER 2023 - SEPTEMBER 2026
AWS Certified Cloud Practitioner
Amazon Web Services
Skills
Libraries/APIs
REST APIs, React, jQuery
Tools
Microsoft Power Apps
Languages
C#, C#.NET, SQL, VB.NET, Java 8, JavaScript, GraphQL
Frameworks
.NET, .NET MAUI, Angular 5, Angular
Storage
Microsoft SQL Server, Azure SQL, PostgreSQL
Paradigms
Event-driven Architecture
Platforms
Amazon Web Services (AWS), Azure, Docker, MacOS
Other
Computer Science, Distributed Systems, API Design, Data Modeling, RESTFul APIs, Bluetooth Low Energy (BLE), CI/CD Pipelines, Machine Learning, Geospatial Data, Java EE 6, Enterprise Java Beans (EJB), Desktop App, Ledgers, Bluetooth, Legacy Code
Collaboration That Works
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
1
Share your needs
Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2
Choose your talent
Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3
Start your risk-free talent trial
Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.
Top talent is in high demand.
Start hiring