I’m a full-stack mobile developer focused on building high-quality, scalable apps with Flutter. I enjoy working across the stack—from crafting smooth, performant UIs to designing clean architectures and reliable backends. I’ve led projects that combine mobile, web, and connected devices, and I’m especially interested in real-time systems, geolocation features, and creating experiences that feel fast and intuitive. I like solving complex problems and turning ideas into products people actually use. Whether it’s optimizing performance, structuring a codebase, or experimenting with new tech, I’m always looking to improve how things are built. Outside of day-to-day development, I work on personal projects that explore social platforms, mapping, and data-driven features, and I enjoy collaborating with others who care about building thoughtful, well-engineered products.

Alejandro Leal

I’m a full-stack mobile developer focused on building high-quality, scalable apps with Flutter. I enjoy working across the stack—from crafting smooth, performant UIs to designing clean architectures and reliable backends. I’ve led projects that combine mobile, web, and connected devices, and I’m especially interested in real-time systems, geolocation features, and creating experiences that feel fast and intuitive. I like solving complex problems and turning ideas into products people actually use. Whether it’s optimizing performance, structuring a codebase, or experimenting with new tech, I’m always looking to improve how things are built. Outside of day-to-day development, I work on personal projects that explore social platforms, mapping, and data-driven features, and I enjoy collaborating with others who care about building thoughtful, well-engineered products.

Available to hire

I’m a full-stack mobile developer focused on building high-quality, scalable apps with Flutter. I enjoy working across the stack—from crafting smooth, performant UIs to designing clean architectures and reliable backends. I’ve led projects that combine mobile, web, and connected devices, and I’m especially interested in real-time systems, geolocation features, and creating experiences that feel fast and intuitive.

I like solving complex problems and turning ideas into products people actually use. Whether it’s optimizing performance, structuring a codebase, or experimenting with new tech, I’m always looking to improve how things are built. Outside of day-to-day development, I work on personal projects that explore social platforms, mapping, and data-driven features, and I enjoy collaborating with others who care about building thoughtful, well-engineered products.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate

Language

Spanish; Castilian
Fluent
French
Fluent
English
Fluent
German
Intermediate
Catalan; Valencian
Intermediate

Work Experience

Senior Mobile Developer at Balis Health – Connected Ecosystem (App + SDK + IoT)
January 1, 2026 - Present
Development and redesign of a connected health mobile application, focusing on architecture, performance, and design system quality. Architecture redesign: migration from GetX MVVM to a modular feature-first approach; adoption of Melos for monorepo management and BLoC for robust, testable state management. Design system & tokenization: implementation of a tokenized design system with an automatic token sync pipeline (design → code), ensuring visual consistency across platforms. UI performance: render optimization to guarantee a smooth 60 fps experience, identification and resolution of performance bottlenecks. BLE stability: improved Bluetooth Low Energy connection reliability and data transfer integrity between the app and health devices. Interoperability: close collaboration with hardware and backend teams to ensure protocol and data flow consistency. Implemented heavy video optimization pipeline in browser/WebView contexts: adaptive loading, buffer management, and lazy rendering t
Mobile Developer & Founder at KR AG – Connected Ecosystem (App + Web + IoT)
January 1, 2025 - Present
Major personal project — full design of an interconnected solution combining hardware and software. API development: creation and integration of a robust REST API to ensure interoperability.
Lead Full Stack Developer at Kloom Studio
January 1, 2024 - January 1, 2026
Technical leadership of an 8-person team. Oversight of architecture and technology decisions. Development and deployment of cross-platform games and applications deployed on over 100 tablets across 30 leisure centers. Embedded systems: implemented custom operating systems on tablets for a locked and secure user experience.
Mobile Developer & Founder at Sh Spots (Réseau Social)
January 1, 2022 - Present
Full app development in Dart/Flutter; integration of geolocation, maps, social feeds (likes, comments, collections), instant messaging, LLM integration. Mapbox SDK integration enabling real-time map overlays for social POIs, and a privacy-focused backend using Firestore.
Harvest Logistics Manager at Roc Breïa, Cluny
September 1, 2023 - September 30, 2023
Management of a 30-person team during the grape harvest; critical handling of logistics and deadlines.

Education

Partial engineering curriculum (Mechanical Engineering) at ETSID I (Madrid) & ECAM (Strasbourg)
September 1, 2017 - September 1, 2020
Scientific Baccalaureate (OIB) at Lycée International des Pontonniers
September 1, 2017 - September 1, 2020
Self-taught / Continuous learning through projects at Factory Startup, Personal Projects, Open-source participation
January 11, 2030 - April 30, 2026

Qualifications

JA Europe Innovation Award (2018)
January 1, 2018 - December 31, 2018
Technical Coach: HIC 2022 Hackathon (Strasbourg School of Management)
January 1, 2022 - December 31, 2022

Industry Experience

Software & Internet, Healthcare, Gaming, Media & Entertainment, Education

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate