Personal details

Enmanuel R. - Remote back-end developer

Enmanuel R.

Senior Backend Engineer
Based in: 🇲🇽 Mexico
Timezone: La Paz (UTC-4)

About

Looking for opportunities within the following areas: game dev, compiler/embedded systems, cryptocurrencies, fintech, or small/mid-startups.

I'd like to take a part designing, discussing and implementing, modern, demanding products.

I strive to deliver high-performance, trustworthy systems that meet the increasing demand for fresh, bleeding-edge, life-changing solutions, ensuring the required software to comply and improve budget and security standards without leaving behind performance and reliability.

I possess strong domain knowledge in: Web3, DeFi, Trading, Banks, Assets custody, Compliance & ERP-like systems.

Visit my blog: https://code.darkroku12.ovh/

LinkedIn: https://www.linkedin.com/in/enmanuelr

Work Experience

Senior Backend Engineer
Umoja Labs | Aug 2021 - May 2025
Python
Node.js
PostgreSQL
Redis
TypeScript
Cryptocurrency
AWS

Main tech stack: NodeJS, TypeScript, Python, Django, PostgreSQL, Redis, AWS.
- Lead Smart Contracts (EVM) Integrations.
- Lead contributor in multiples backends and the on-hands DevOps.
- Responsible for enabling CeFi and DeFi on/off-ramps.
- Detected and repaired security risks in the existing codebase.
- Augmented data analysis, pairing KPI with expected success metrics.
- Improved existing code base, increasing efficiency & readability.
- Configured CI/CD in Github Actions for automated tests (with Jest).
- Development of WhatsApp and USSD text chat user interface.
- Query and storage tuning for multiple database and cache systems.

Backend | Full Stack Developer
Arpictech, SRL | Feb 2017 - Oct 2021
C#
C++
C
Node.js
PostgreSQL
OpenCV
Azure
Lua
WebSocket
Redis
TypeScript
Oracle PL/SQL
Docker
React
SAP/ABAP
.NET Core
SQL Server 2014
AWS

Full-stack developer & DBA.
– Implemented several technologies back-end & front-end for multiple, renowned customers in the Dominican Republic and overseas, some of them were: Magna Motors, MartiPg, La Famosa, Farmaconal, Naturipe Farms.
– Fixed data leaks, data corruption and performance bottle-necks.
– Worked and managed big databases in production, quality, and dev environments.
– Managed and configured both Linux and Windows servers.
– Extensive use of: AWS, NodeJS, C#, PostgreSQL, NGINX, AngularJS, React, Docker, SAP, Web Sockets.

Projects

Umoja Protocol
2024 | umoja.xyz
Node.js
Cryptocurrency
AWS
Smart contract

Education

Instituto Tecnologico de Las Americas
Bachelor's degree・Software Development
Jan 2016 - Jan 2019
Junior Achievement Dominicana
High school diploma・Commerce & finances
Jan 2008 - Jan 2014