Javier Stevenson

Profile

CTO & Technical Leader

Architecting high-performance digital ecosystems. Merging data-driven logic with intuitive user experiences to scale enterprise platforms globally. Ex-Valu CTO (acquired by Ubits). Today he designs and ships AI products at TizonAI.

Experience

Valu

CTO & Co-Founder (Exit)

03/24 – Present

Successfully managed the company's exit to Ubits Learning Solutions. Established and led the Core AI division, architecting a central AI platform for custom agents and subagents that accelerated HR 360 products (recruitment, learning AI, coaching, sales roles).

Next.js, Nest.js, Golang, Python, AWSVisit ↗

Inspectiv

Sr. Software Developer

05/24 – 08/25

Developed the core platform for Bug Bounties, Pentests and vulnerability findings. Integrated Jira and Slack workflows for enterprise security reporting.

Next.js, TypeScript, GolangVisit ↗

Rappi

Sr. Backend Dev & Tech Lead

07/19 – 03/24

Optimized the grocery dispatch service (error rate 50%→5% at 10x traffic) and implemented the delivery price service (+10% profits, $1–2M USD in Brazil). Processed 27k orders/min across 9 countries.

Golang, NodeJS, Kafka, S3, InfluxDBVisit ↗

Mercadoni

Tech Lead — Catalog

01/18 – 07/19

Data Flow Engine upserting 1.5M products/hour. Led integrations of 10 main retailers (Cencosud, Olimpica, DIA, Alkosto).

Python, NodeJS, MySQL, Nexla, AlgoliaVisit ↗

Mareigua – Aportes en Línea

Software Engineer

08/16 – 01/18

Monitoring visualization for social security services validating 40% of employers in Colombia.

.NET, SQL Server, D3.jsVisit ↗

Universidad de los Andes

Graduate Assistant

01/16 – 05/16

Interactive robot teleoperation app with Kinect, Leap Motion and steering wheel. Supervised the programming lab.

C++, Kinect, Leap Motion, AriaVisit ↗

Stack

GolangPythonTypeScriptDockerKubernetesReactPostgreSQLRedisGraphQLAWSKafkaTerraform

Education

Master of Science

Systems and Computing Engineering

Universidad de los Andes, Colombia

GPA 4.31 / 5.0 · Year 2017Visit ↗

Bachelor of Science

Computer and Systems Engineering

Universidad de los Andes, Colombia

GPA 3.7 / 5.0 · Year 2016Visit ↗

Awards

Best Full Paper Award

11th Colombian Computing Conference (11CCC). Awarded for contribution to computational models using Deep Learning for robotics exploration and object recognition.

Awarded by 11CCC · Year 2016Visit ↗