Hi, my name is

Santiago Olayo

Software Engineer

I have 4+ years of experience building and improving products for startups and international companies. I work across backend development, cloud infrastructure, product analytics, and internal tools, with a focus on solving real business problems and making systems and processes work better.

Node.js & NestJS
Spring Boot & Java
AWS & Cloud Functions
PostgreSQL · MongoDB · Redis
MCP & Cloudflare AI Gateway
Datadog · CleverTap · Metabase

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01.Experience

Where I've Worked

I work closely with product, operations, support, and finance to understand their needs and take features from idea to production.

Product Owner Engineer / Backend Engineer

GoodRec

Jan 2025 – PresentRemote

Handle feature development end to end, from discussions with stakeholders and technical design to implementation, deployment, and post-release monitoring.
Build and maintain backend services (Node.js, NestJS, TypeScript) using Hexagonal Architecture and DDD, along with mobile features, internal tools, database migrations, and Redis locks.
Contributed to moving manual workflows toward AI-assisted processes and improving internal team tools, including MCP tooling to connect with our preferred LLMs, focused plugins and skills for each team area, and prompting rules with Cloudflare AI Gateway.
Use Datadog to monitor services, configure alerts, and investigate production issues, CleverTap to track product events and business metrics, and Metabase to analyze data and support product decisions.

NestJS
Node.js
TypeScript
Hexagonal / DDD
AWS
Redis
MCP
Cloudflare AI Gateway
Datadog
CleverTap
Metabase

Backend Developer

Bolsiyo

Aug 2022 – Jan 2025Remote

Built and maintained backend services with Node.js, TypeScript, and LoopBack 4 for a mobile app used by independent merchants.
Designed schemas and ran migrations in PostgreSQL and MongoDB, optimizing wallet and payment queries.
Developed REST APIs, payment gateway integrations, and automated tests within a Scrum team.

Node.js
TypeScript
LoopBack 4
PostgreSQL
MongoDB
REST APIs

Full Stack Developer

Cooltivalo · +COTAS · SLS GROUPS

Jan 2021 – May 2023Colombia

Developed web applications and backend APIs using JavaScript, TypeScript, Node.js, GraphQL, MySQL, and MongoDB.
Handled relational data modeling, front-end integrations, and cloud deployments.

Node.js
TypeScript
GraphQL
MySQL
MongoDB
JavaScript

02.What I Work On

Systems & Day-to-Day Engineering

A closer look at the backend systems, internal tooling, and product infrastructure I build and maintain.

Backend Services & Database Migrations
Core Focus
Designing and scaling backend APIs with NestJS, Node.js, and Spring Boot. Handling high-concurrency flows with Redis locks and running safe schema migrations in PostgreSQL and MongoDB.
- NestJS
- Node.js
- Spring Boot
- PostgreSQL
- MongoDB
- Redis
Internal AI Tooling & Workflow Optimization
Internal Tools
Helping the team replace manual tasks with AI-assisted workflows. Improving internal MCP tooling to connect with our preferred LLMs, building team-focused plugins and skills, and managing prompting rules through Cloudflare AI Gateway.
- TypeScript
- MCP
- Cloudflare AI Gateway
- LLMs
- Internal Tooling
Production Monitoring & Product Analytics
Observability & Data
Keeping services healthy in production with Datadog alerts, logs, and tracing. Tracking product events in CleverTap and building queries in Metabase so product, ops, and finance can make decisions with real data.
- Datadog
- CleverTap
- Metabase
- AWS
- SQL
End-to-End Product Delivery
Execution
Working directly with product, operations, support, and finance to scope problems, design practical technical solutions, ship across backend and mobile, and iterate after release.
- Product Ownership
- Technical Design
- Hexagonal / DDD
- CI/CD

03.Contact

Get In Touch

If you want to chat about backend engineering, internal tools, or a project, feel free to send me a message.

Links & Contact

Send a Message

Prefer a direct approach?

Send me an email