Luigelo Davila
Senior Full-Stack Engineer (Web, iOS & Cloud)
Warsaw, Poland. Open to remote roles across the EU and B2B contracts.
Summary
Senior full-stack engineer with 5+ years taking products from architecture to production across web, native iOS, Python backends and AWS/Azure cloud. At Zoloo, a SaaS platform for bol.com sellers (€2.5B+ in member sales, 20,000+ orders a day), I own the native iOS app and lead the move from a monolith to microservices, including 40M+ records migrated with zero data loss in production. As founder of Ldvloper, I designed, built and launched Syncflow, an AI goal planner on web and iOS with 1,200+ users, 21 of them paying.
Experience
Zoloo (formerly Boloo), SaaS platform for bol.com sellers
Netherlands, remoteSenior Software Engineer (Mobile & Full-Stack), B2B contract via Ldvloper
Jul 2025 – Present- Lead the migration of core business domains from a monolith to microservices (Python, FastAPI, Celery, RabbitMQ, MySQL), moving 40M+ historical records with zero data loss while the platform stayed live
- Own the native iOS app (Swift/SwiftUI) end to end, live on the App Store, including passkey authentication, sales dashboards and an AI assistant
- Improved production reliability and data integrity through monitoring, incremental rollouts and fixes to long-standing concurrency issues
- Ship features across the full stack: backend services, the React web dashboard and bol.com platform integrations
- Maintain CI/CD and AWS infrastructure with GitLab CI; hardened platform security with rate limiting, a WAF and email authentication
Software Engineer (Full-Stack)
Jul 2024 – Jun 2025- Led development of the cross-platform mobile app in React Native/Expo, integrated with internal APIs
- Built message-driven backend microservices for product synchronization, seller reporting and task automation
- Automated deployments and monitoring on AWS (CloudFormation, ECS, CloudWatch)
Ldvloper, Software studio, own company
Warsaw, PolandFounder & Principal Engineer
Apr 2025 – PresentStudio through which I contract with clients on a B2B basis and build my own products.
- Built and launched Syncflow (syncflow.me), an AI goal planner on web and native iOS, as sole engineer from product design to App Store release; 50+ sign-ups in its first month and 1,200+ users by October 2026, 21 of them paying
- Integrated four LLM providers (Claude, ChatGPT, Groq, Grok) with bring-your-own-key support, plus calendar sync with Apple, Google and Outlook and daily step emails
- Designed Autopilot, an agentic assistant with mandatory approval gates and shadow-mode testing before any action runs
- Kept infrastructure cost near zero by design on Vercel; payments through Apple and Stripe
- Deliver application and cloud security assessments for clients, with hands-on remediation support
Applus+ Laboratories, Global testing and certification group
Barcelona, SpainFull-Stack Developer, IT Infrastructure, hybrid
Jul 2022 – Jan 2024Led Client Area, the customer-facing portal where Applus+ clients follow their work end to end, from sample tracking to project status and reports.
- Designed the microservices architecture and built its 3 core services in FastAPI and .NET
- Built the Next.js, React and TypeScript frontend on a tested component library (unit tests, Storybook)
- Took the platform to public launch on the company's new Azure landing zone with the Cloud Center of Competence: Key Vault, virtual network isolation, Azure SQL, Container Registry, Blob Storage
- Set up CI/CD pipelines in Azure DevOps and ran delivery in Scrum
Full-Stack Developer Intern, E&E Laboratories
Jul 2021 – Jul 2022Sole developer of an internal platform used by 50+ laboratory staff to plan projects and coordinate resources.
- Built and owned the full stack: Laravel (PHP) REST APIs, Vue.js frontend and MySQL, Dockerized on an on-premise server
- Stabilized the platform and worked directly with end users to prioritize and ship improvements
Plink, Contract via agency
US, remoteMobile Application Developer
Feb 2022 – May 2022- Built app features in React Native with Redux state management
- Built supporting Node.js server components and Dockerized development environments
Odournet
Barcelona, SpainTechnical Analyst
Jun 2017 – Feb 2020Laboratory data analysis and sample classification, before moving into software engineering.
Skills
- Languages
- TypeScript, JavaScript, Python, Swift, C#, SQL
- Frontend
- React, Next.js, Redux, Tailwind CSS, Storybook
- Mobile
- SwiftUI, React Native, Expo, Passkeys
- Backend
- FastAPI, Django, Celery, Node.js, .NET, RabbitMQ, MySQL, Redis, REST APIs
- Cloud & DevOps
- AWS (ECS, CloudFormation, CloudWatch), Azure, Docker, GitLab CI, Azure DevOps, Vercel, Cloudflare
- AI
- LLM integration (Claude, OpenAI, Groq), Agentic workflows
- Practices
- Microservices, Distributed systems, Data migration, Security reviews, CI/CD, Scrum
Education
- Bachelor of Engineering, Telecommunications, Universitat Politècnica de Catalunya (UPC), Barcelona, SpainSep 2019 – Jun 2023
- Java Development & Computer Science, Universidad Nebrija2022
- Web Application Development (IFCD0210), ASEDEM2019
Languages
Spanish (Native), Catalan (Native), English (C1, full professional)
Updated Oct 2026