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Senior software engineer with 8+ years across high-scale backend and distributed systems, data/AI platforms, and performance-critical embedded C. I own core systems end to end—from API and infrastructure design to production observability—building Kubernetes-based fintech risk services, Rust/C performance components, and ML/RAG pipelines. I’ve worked across payments, risk assessment, and data engineering, using Python (FastAPI/Django), SQL, Kubernetes/AWS, and rigorous monitoring/error tracking. I also bring strong embedded and hardware experience (C firmware, FreeRTOS, protocol handling, PCB design) to deliver robust systems in production environments.…Senior software engineer with 8+ years across high-scale backend and distributed systems, data/AI platforms, and performance-critical embedded C. I own core systems end to end—from API and infrastructure design to production observability—building Kubernetes-based fintech risk services, Rust/C performance components, and ML/RAG pipelines. I’ve worked across payments, risk assessment, and data engineering, using Python (FastAPI/Django), SQL, Kubernetes/AWS, and rigorous monitoring/error tracking. I also bring strong embedded and hardware experience (C firmware, FreeRTOS, protocol handling, PCB design) to deliver robust systems in production environments.

Oscar E. Moreno

Software Engineer, Back-End Developer, Data Engineer, +2

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Senior software engineer with 8+ years across high-scale backend and distributed systems, data/AI platforms, and performance-critical embedded C. I own core systems end to end—from API and infrastructure design to production observability—building Kubernetes-based fintech risk services, Rust/C performance components, and ML/RAG pipelines. I’ve worked across payments, risk assessment, and data engineering, using Python (FastAPI/Django), SQL, Kubernetes/AWS, and rigorous monitoring/error tracking. I also bring strong embedded and hardware experience (C firmware, FreeRTOS, protocol handling, PCB design) to deliver robust systems in production environments.…Senior software engineer with 8+ years across high-scale backend and distributed systems, data/AI platforms, and performance-critical embedded C. I own core systems end to end—from API and infrastructure design to production observability—building Kubernetes-based fintech risk services, Rust/C performance components, and ML/RAG pipelines. I’ve worked across payments, risk assessment, and data engineering, using Python (FastAPI/Django), SQL, Kubernetes/AWS, and rigorous monitoring/error tracking. I also bring strong embedded and hardware experience (C firmware, FreeRTOS, protocol handling, PCB design) to deliver robust systems in production environments.

Available to hire

Senior software engineer with 8+ years across high-scale backend and distributed systems, data/AI platforms, and performance-critical embedded C. I own core systems end to end—from API and infrastructure design to production observability—building Kubernetes-based fintech risk services, Rust/C performance components, and ML/RAG pipelines.

I’ve worked across payments, risk assessment, and data engineering, using Python (FastAPI/Django), SQL, Kubernetes/AWS, and rigorous monitoring/error tracking. I also bring strong embedded and hardware experience (C firmware, FreeRTOS, protocol handling, PCB design) to deliver robust systems in production environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Spanish; Castilian

Fluent

Italian

Beginner

Work Experience

Software Engineer (Payments / Embedded C) at Xatoxi Inc.

July 1, 2025 - Present

Developed payment-processing modules in C, including an ISO8583 card processor. Implemented transaction protocol handling and low-level memory management. Built and maintained GitLab CI/CD pipelines to automate build, test, and deployment for embedded and backend components.

Senior Software Engineer — Exposure Management team at Ebury

June 1, 2025 - Present

Owned a core risk-assessment service for a global FX & payments platform. Built the majority of the service core logic in Python (FastAPI, SQLAlchemy, Django) and exposed APIs consumed by trading and risk workflows. Configured Kubernetes workloads to maintain responsiveness under variable load, adapting shared infrastructure patterns into the team codebase. Implemented end-to-end observability using Datadog monitors-as-code, alerting, and tagging, plus Sentry error tracking to improve incident detection and response. Ran production workloads on AWS (EC2, RDS) in a microservices environment.

AI Engineer at ChiralAI

January 1, 2025 - July 1, 2025

Architected a Rust-based financial orchestration library with modular adapters for multiple LLM providers (OpenAI, Google AI, Anthropic, Deepseek, local). Engineered a gRPC remote-executor pool with smart batching and output caching, doubling inference throughput. Built RAG workflows to parse, embed, and answer natural-language queries over large SEC filings and financial statements. Exposed the Rust core to Python via PyO3 and maturin, shipping a pip-installable package for end-to-end AI finance pipelines. Integrated GPU-accelerated remote compute clusters with robust retry/error handling and CI/CD for deployment.

Backend Tech Lead (contract) at Yummy (Super App)

December 1, 2021 - July 1, 2022

Led the backend team building AWS ECS microservices with Node.js and MongoDB. Maintained and optimized a rapidly growing application with 1M+ active users, contributing to 200,000+ user growth in under three months. Partnered with QA, UI/UX, and leadership to plan, integrate, and release new features.

Senior Data Engineer at PredictVia LLC

September 1, 2021 - December 1, 2024

Built scalable web applications and data-collection pipelines in Python (Selenium, Django) to process and analyze large datasets. Developed and deployed machine-learning models (clustering, classification, predictive analytics) to drive decision-making. Designed interactive dashboards (React, Google Data Studio, Graphext) to turn complex datasets into actionable insights. Deployed cloud pipelines on AWS (Lambda, S3, EC2, RDS) and scaled compute with Amazon EKS for high-volume data and model training. Automated internal metric generation to improve team productivity and operational efficiency.

Software Assurance Engineer at HypeDev LLC

January 1, 2021 - August 1, 2021

Ensured compliance across execution, documentation, and integration phases of the James Webb Space Telescope project, covering critical system components and failback support. Reviewed adherence to NASA quality standards across electronics, mechanics, and software deliverables. Collaborated with teams at Lockheed Martin and MAXAR Technologies to maintain project integrity under stringent requirements.

Backend & Firmware Developer at Janway LLC

September 1, 2020 - May 1, 2021

Led development of an automated cleaning system: C++ firmware for microcontroller-based control of battery and pump-actuator systems. Designed PCBs integrating power management and actuator control for compact, reliable hardware. Built a Node.js backend for device management, including logging, diagnostics, real-time status monitoring, and over-the-air firmware updates.

L2 Customer Support Engineer at ESW Capital / Crossover

May 1, 2020 - May 1, 2021

Provided advanced (L2) technical support across ESW Capital's enterprise-software portfolio (DNN, Kayako, School Loop, Placeable, Firm58), resolving business-critical issues under strict SLAs. Led a team of support engineers and set troubleshooting strategies to consistently meet/exceed customer-satisfaction targets. Built certified expertise across multiple products within a high-throughput standardized remote-delivery model.

Lead Software Engineer at AIMonkey LLC

October 1, 2019 - December 1, 2020

Designed scalable backend solutions with MySQL, PostgreSQL, and MongoDB. Built real-time C++ processing modules for high-performance data ingestion, optimizing latency and throughput. Delivered full-stack AI web solutions with data analysis and visualization (Python, R, Tableau).

Product Development Engineer (IoT / Embedded) at Tecnetos C.A.

June 1, 2019 - May 1, 2020

Designed IoT sensors and platforms (gas, temperature, humidity) on ESP microcontrollers using FreeRTOS and C/C++. Led Point-of-Sale (POS) system design, integrating hardware and software; took modules from prototype to production. Built Django/Flask web applications supporting IoT ecosystems.

Automation Project Engineer at Alter-Info C.A.

December 1, 2018 - June 1, 2019

Developed a physical simulator for the diesel-engine system of the Caribe S-32 submarine, ensuring accurate emulation and safety compliance. Programmed CompactRIO controllers and FPGA-based LabVIEW virtual instruments for automation and data acquisition. Designed high-precision PCBs (Altium) for sensor integration.

Data Management Analyst at Ohava Inc.

July 1, 2017 - September 1, 2018

Built ETL pipelines to integrate and process data across multiple sources. Created Tableau/SQL dashboards for real-time KPI monitoring. Automated data cleaning and preprocessing with C++ scripts to ensure consistent data quality.