Jhonathan Abreu
Software Engineer at QuantConnect
Caracciolo Parra Olmedo, Merida State, Venezuela
Summary
🤩
Rockstar🎓
Top SchoolJhonathan Abreu is a versatile software engineer with nine years of experience building backend systems, C++ libraries for domain-specific optimization, and full-stack web platforms for the energy sector and beyond. He has a proven ability to learn on the job—picking up Java while shipping production backends and contributing C# indicators and trading algorithms to the popular QuantConnect Lean engine. As a former undergraduate teaching assistant in algorithms and data structures, he blends strong fundamentals with practical engineering, having co-led development of Clustergy and delivered tools that model petroleum production systems. Comfortable across languages and layers (C/C++, Java, JavaScript/React, Express, PostgreSQL), he favors solving hard problems that connect low-level algorithmic work to user-facing analytics. Based in Mérida, Venezuela, he combines academic rigor with startup agility and a habit of exploring new paths in computing for curiosity as much as career growth.
9 years of coding experience
4 years of employment as a software developer
Grado en Ingeniería, Ingeniería de sistemas, Sistemas Computacionales, Grado en Ingeniería, Ingeniería de sistemas, Sistemas Computacionales at Universidad de los Andes (VE)
Spanish, English
Stackoverflow
13reputation
850reached
0answers
1question
Github Skills (12)
algorithm10
finance10
csharp10
trading-algorithms10
algorithmic-trading10
dotnet-core10
java6
webservice6
jersey6
rest6
jax-rs6
python4
Programming languages (6)
Github contributions (5)
QuantConnect/Lean
May 2022 - Jan 2023
Lean Algorithmic Trading Engine by QuantConnect (Python, C#)
Role in this project:
Back-end Developer & Algorithm Engineer
Back-end Developer & Algorithm EngineerContributions:161 reviews, 64 commits, 320 PRs in 8 months
Contributions summary:Jhonathan primarily contributed to the development of financial indicators and trading algorithms within the QuantConnect Lean engine. Their work involved implementing the True Strength Index (TSI) indicator in C# and adding it to the QCAlgorithm class. Additionally, they contributed to the algorithm library by integrating various indicators, including ChaikinMoneyFlow, DeMarker Indicator (DEM), and creating a TrueStrengthIndex indicator. These contributions involved writing C# code, implementing technical analysis logic, and extending the capabilities of the trading engine.
algorithmic-trading-enginepythonpinescriptbacktesting-trading-strategiesc-sharp
jhonabreul/lean-cli
Sep 2022 - Feb 2025
CLI for running the LEAN engine locally and in the cloud
Contributions:227 pushes, 112 branches in 2 years 5 months
golanglean-enginelocallyleancli
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