Valentina Varela Alzate

VA

Looking for a job

Valentina Varela Alzate

@valentinavarelaalzat

Backend engineer at Instaleap who cut database deadlocks by 80% and improved fleet utilization by 80%.

At Instaleap, I migrated RabbitMQ event processing to AWS SQS FIFO queues, eliminating 80% of database deadlocks. I also enhanced route optimization with weight and volume constraints, improving fleet utilization by 80%.

Previously, I migrated Instaleap’s database to Amazon Aurora, reducing database latency by 30%, and integrated last-mile delivery providers including Uber Direct and Wolt. At Heru, I optimized critical API response times from 500ms to 300ms through database indexing and asynchronous processing.

Experience

Work history, roles, and key accomplishments

IN

Current

Software Engineer II

Current

Instaleap

Oct 2025 - Present (1 year)

Led migration of RabbitMQ event processing to AWS SQS FIFO queues, eliminating 80% of database deadlocks. Designed dynamic pricing rules and enhanced route optimization with weight and volume constraints, improving fleet utilization.

RabbitMQ AWS SQS PostgreSQL OR Tools Route Optimization Dynamic Pricing FIFO LIFO Queue Management

IN

Software Engineer

Instaleap

Jan 2024 - Oct 2025 (1 year 9 months)

Migrated database from PostgreSQL to Amazon Aurora, reducing latency by 30%. Designed integrations with Uber Direct and Wolt, and restructured geographic zone routing to improve load balance.

PostgreSQL Amazon Aurora AWS UberDirect Wolt Routing Algorithms Database Migration

HE

Junior Backend Engineer

Heru

Jan 2022 - Jan 2024 (2 years)

Optimized microservice response times from 500ms to 300ms through database indexing and asynchronous processing. Integrated HubSpot and CleverTap APIs to consolidate user data into unified dashboards.

Microservices Database Indexing Asynchronous Processing HubSpot CleverTap API Integration

Education

Degrees, certifications, and relevant coursework

BA

Bayswater

General English Advanced, General English

2026 - 2026

Completed a full-immersion General English Advanced program abroad, achieving C1 level.

PT

Pereira University of Technology

B.Sc., Systems and Computer Engineering

2019 - 2023

Grade: 4.3/5.0

Activities and societies: Distinguished Student Award (top graduate, no failed courses)

B.Sc. in Systems and Computer Engineering with a GPA of 4.3/5.0 and Distinguished Student Award.

ME

Meta

Meta Backend Developer Specialization, Backend Development

Completed the Meta Backend Developer Specialization.

UI

University of California, Irvine

Programming with Google Go Specialization, Programming

Completed the Programming with Google Go Specialization.

PU

Princeton University

Algorithms and Data Structures, Algorithms and Data Structures

Completed the Algorithms and Data Structures certification.

PA

Packt

Writing Clean Code, Software Development

Completed the Writing Clean Code certification.

GO

Google

Technical Support Fundamentals, Technical Support

Completed the Technical Support Fundamentals certification.

Tech stack

Software and tools used professionally

Kubernetes

PostgreSQL

MongoDB

Django

NestJS

Redis

JavaScript

Python

Go

HubSpot

RabbitMQ

Amazon SQS

Flask

FastAPI

Firebase

Amazon Aurora

TypeScript

Docker

Express

AWS

Availability

Looking for a job

Location

Colombia

Authorized to work in

Salary expectations

83k+ USD

Job categories

Backend Engineer

Skills

Backend Engineering Distributed Systems Event Driven Architecture Database Optimization Microservices API Integration Route Optimization Python Django fastAPI Flask Go Gin JavaScript TypeScript

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