Luigelo Davila

I design how data and automation reach your apps: fast, efficient and built around the people using them.

Warsaw, Poland

Open to full-stack and mobile roles, remote in the EU or B2B.

LD

I've spent 5 years taking software from architecture to production across web, mobile, backend and cloud.

At Zoloo (formerly Boloo), a SaaS platform for bol.com sellers with €2.5B+ in member sales and 20,000+ orders a day, I own the native iOS app and lead the migration of core business domains from a monolith to microservices, including moving 40M+ historical records while the system stayed in production.

Before that I led a customer-facing microservices portal at Applus+, and I built and launched Syncflow, an AI goal planner, as a solo founder.

Selected work

Two deep dives first, then more of what I've built. Most of it lives in private codebases, so I describe the result rather than link to the code.

Zoloo, 2025–now

Moving invoicing out of a monolith without losing a record

How I moved invoicing out of Zoloo's monolith into its own service: shadow mode, the smallest accounts first, and 40M+ records migrated without losing one.

Records migrated
40M+
Records lost
0
Maintenance window
None

Syncflow, 2026

Building an AI agent that always asks first

How I designed Syncflow Autopilot, a beta AI agent that never finishes a step without asking, and built it with parallel AI coding agents.

Highest autonomy
Ask first
Daily action cap
20
Shadow period
3 days

More work

  • Zoloo for iOS

    2025–now

    Zoloo

    Native app for bol.com sellers that I own end to end, live on the App Store with passkey sign-in, sales dashboards and an AI assistant.

    Swift, SwiftUI, PasskeysPrivate codebase
  • Applus+ Client Area

    2022–2024

    Applus+

    Customer portal for tracking samples, projects and reports. I designed the architecture, built its 3 core services and hardened it for public launch on Azure.

    FastAPI, .NET, Next.js, AzurePrivate codebase
  • Laboratory planning platform

    2021–2022

    Applus+ E&E Laboratories

    Sole developer of the tool 50+ lab staff use to plan projects and share resources.

    Laravel, Vue.js, MySQL, DockerPrivate codebase

How I work

  • Start from the person using it

    I put myself in the user's position and take decisions from there. With feedback, I look for the common issue, try to see it objectively, and go back with questions to find the why: was it hard to use, did it work differently than expected, or did it simply not work? I also study success stories, and what customers complain about on other platforms, so I don't repeat the same mistakes.

  • Keep it simple so it lasts

    Messy doesn't mean bad code. It means code that will be hard to maintain. Complexity isn't quality: simple, functional and well-structured systems work in harmony with each other, and good planning protects you from painful migrations and computing costs nobody can predict. Before changing anything, I ask the people who know that code best. I apply the same idea in my life: keep things simple and organized, so anyone can understand them and give me a hand.

  • Move in small, verified steps

    Big changes go out progressively. At Zoloo we migrated the accounts with the fewest orders first, ran everything in shadow mode, and only moved on when the data matched. The waiting and checking isn't lost time: that's when the small things get fixed.

    Read the Zoloo invoicing migration
  • When something breaks, protect users first

    I prioritize mitigation over the root cause. Then I follow the same steps every time:

    1. Triage: check who's affected, and roll back, stabilize or fix it if it's simple.
    2. Investigate: look for causes, patterns and recent changes in observability, error tracking and git history.
    3. Communicate early with customer support and the affected users.
    4. Verify everything works again, and measure the impact: users affected, data to recover, and how long that takes.
    5. Tell affected users if data was lost or has to be recovered.
    6. Prevent it: write the post-mortem and make the code resilient to the same failure.
  • Use AI as a tool, own every decision

    A year ago I wasn't working with AI at all; now it's part of my daily work. I analyse with AI, confirm with the team and execute progressively. Anything touching business logic or production data, I do myself, and AI confirms and refines.

    Read how I built Syncflow Autopilot
  • Only ship what I'd use myself

    One of my teachers at school only accepted clean essays, with no correction fluid or crossed-out words, and that stayed with me. I'm objective and self-critical, and sometimes that makes me over-polish. But I know when the requirements are met and it's time to get feedback from different users, because each one brings different scenarios.

  • Explain it so anyone understands

    I learned to explain technical things to non-technical people. I prepare, and I look into the background of the person I'll work with, so I don't over-explain or go through things that don't matter to them. Even close friends know what I do for a living, and why I once left a dinner early: I had suddenly seen how a solution could fit into a system, like a puzzle piece.

What colleagues say

“Luigelo is a great Full Stack developer, someone you could delegate even the most difficult tasks and he will come back at you with a solution.”

Federico Lacabaratz, Senior Frontend React DeveloperWorked on the same team. LinkedIn recommendation, Jun 2023

“He knows front-end, back-end and DevOps (among other things), and he knows it well. … He also knows how to lead development teams to get tasks done, as well as how to accompany and make the people around him better.”

Mario Barceló, Frontend DeveloperWorked alongside Luigelo, who was senior to him. LinkedIn recommendation, Sep 2023

“Luigi is a 100% proactive person, professional, responsible, self-taught and with a distinguished vocation for software development and cybersecurity. … he is a great generator of knowledge for all his peers.”

Emanuel Ballón, IT Project ManagerHis project manager at Applus+. LinkedIn recommendation, Jan 2023
Read the full recommendations on LinkedIn

Experience

  1. Z

    Zoloo (formerly Boloo)

    Netherlands, remote

    1. Senior Software Engineer (Mobile & Full-Stack)

      Jul 2025 – Present (1 yr 4 mos)

      B2B contract via Ldvloper

      • Own the native iOS app (Swift/SwiftUI) end to end, live on the App Store, including passkey authentication, sales dashboards and an AI assistant
      • Lead the migration of core business domains from a monolith to microservices (Python, FastAPI, Celery, RabbitMQ, MySQL), including 40M+ historical records moved with zero data loss
      • Improve reliability and data integrity in production through monitoring, incremental rollouts and fixes to long-standing concurrency issues
      • Deliver features and fixes across the full stack: backend services, the React web dashboard and bol.com platform integrations
      • Maintain CI/CD and cloud infrastructure on AWS and GitLab CI; strengthened platform security with rate limiting, WAF and email authentication
    2. Software Engineer (Full-Stack)

      Jul 2024 – Jun 2025 (1 yr)

  2. A

    Applus+

    Barcelona, Spain

    1. Full-Stack Developer

      Jul 2022 – Jan 2024 (1 yr 7 mos)

      IT Infrastructure, hybrid

      Led Client Area, a customer-facing portal where Applus+ clients follow their work end to end, from sample tracking to project status and reports.

    2. Full-Stack Developer Intern

      Jul 2021 – Jul 2022 (1 yr 1 mo)

      E&E Laboratories

      Sole developer of an internal platform used by 50+ laboratory staff to plan projects and coordinate resources.

  3. P

    Plink

    US, remote

    1. Mobile Application Developer

      Feb 2022 – May 2022 (4 mos)

      Contract via agency

  4. O

    Odournet

    Barcelona, Spain

    1. Technical Analyst

      Jun 2017 – Feb 2020 (2 yrs 9 mos)

      Laboratory data analysis and sample classification, before moving into software engineering.

Entrepreneurship

Alongside client work, I run my own studio and build products end to end, from design to launch.

Ldvloper

Founder & Principal Engineer, Warsaw, Poland

A European software studio. I use it to contract with clients on a B2B basis and to build my own products.

Client engineering
My main engagement: senior engineer at Zoloo, on mobile, backend and infrastructure.
Products
Syncflow, designed, built and launched in-house.
Security reviews
Application and cloud security assessments, with hands-on help fixing what they find.

Syncflow

Founding engineer since Jul 2026

An AI goal planner that breaks any goal into small, time-estimated steps and hands them to you one at a time.

users, 21 of them paying
1,200+
live on the App Store
Web + iOS
design, build and launch
Solo
  • Built the web app and native iOS app (Swift/SwiftUI) end to end, from product design to launch
  • Multi-provider AI (Claude, ChatGPT, Groq, Grok) with bring-your-own-key support
  • Calendar sync with Apple, Google and Outlook, plus daily step emails
  • Autopilot, an agentic assistant with mandatory approval gates and shadow-mode testing before actions run
  • Near-zero infrastructure cost by design on Vercel; payments through Apple and Stripe
Read how I built Autopilot
  • Swift/SwiftUI
  • TypeScript
  • Vercel
  • Stripe
  • LLM APIs

Code activity

My GitHub contributions over the past year, including private repositories. Counts only; no private code is shown.

Skills

Frontend
  • React
  • Next.js
  • TypeScript
  • Redux
Mobile
  • Swift/SwiftUI
  • React Native
  • Expo
Backend
  • Python (FastAPI, Django, Celery)
  • Node.js
  • .NET
  • RabbitMQ
  • MySQL
  • Redis
Cloud & DevOps
  • AWS (ECS, CloudFormation)
  • Azure
  • Docker
  • GitLab CI
  • Azure DevOps
  • Cloudflare
Architecture
  • Microservices
  • Distributed systems
  • REST APIs
Languages
Spanish (Native), Catalan (Native), English (C1, full professional)

Education

Certifications

  • NDG Linux Unhatched, Cisco Networking Academy2023
  • Java Development & Computer Science, Universidad Nebrija2022
  • Agile with Atlassian Jira, Atlassian2022
  • Web Page, Digital/Multimedia and Information Resources Design (IFCD0210_MF0493), ASEDEM2019
  • Web Applications Development in Server Environment (IFCD0210_MF0492), ASEDEM2019

Get in touch

I'm based in Warsaw and work remotely with teams across Europe.

Hiring?

I'm open to full-stack and mobile roles, remote in the EU or on a B2B contract. Email is the fastest way to reach me.

Have a project?

Through Ldvloper, my software studio, I build web and native apps, migrate and scale platforms in the cloud, and run technical and security audits.