Aleksis Jonas Lesieur

Available to hire

Hi there! I'm Aleksis Jonas Lesieur, a full-stack developer specializing in data-driven web apps, cloud infrastructure, and scalable backend services.

About

Hi there! I’m Aleksis Jonas Lesieur, a full-stack developer specializing in data-driven web apps, cloud infrastructure, and scalable backend services. Over the past 8+ years, I’ve built end-to-end platforms using Rust, Python, Node.js, React, and Next.js, focusing on performance, reliability, and observability.

I love turning big datasets into actionable insights—ETL pipelines, ML-driven features, and tooling that helps teams work faster. I enjoy collaboration across frontend, backend, and data engineering, and I’m always learning new technologies to ship productive, maintainable software.

  • 7 years' experience
  • Joined February 2026

Industry experience

  • Software & Internet
  • Media & Entertainment
  • Professional Services
  • Gaming

Work experience· 11 roles

Software Engineer · Footy LabsOct 2025 – Present · 1 yr 2 mos

AI-driven football analytics platform providing data analytics and performance insights for clubs, coaches and players. Specializes in data pipelines, machine learning, and sports analytics to transform large datasets into actionable decision-making tools.

Full-Stack Web3 Developer (Contractor) · Footy LabsOct 2025 – Present · 1 yr 2 mos

Designed and implemented an ETL pipeline to scrape and process football data (players, clubs, leagues, and agencies) from the transfer market. Built backend services using Python and FastAPI, leveraging GraphQL for efficient large-scale data ingestion and processing. Developed a Next.js frontend and integrated backend APIs to support data-driven workflows. Architected and deployed cloud infrastructure on Google Cloud (Cloud Run, Compute Instances, Cloud Build, Buckets, and CI/CD pipelines) to automate data ingestion and processing. Implemented automated data normalization and entity assignment logic to maintain consistent relationships across datasets.

Full-Stack/Backend Developer · TapestryJul 2024 – Sep 2025 · 1 yr 3 mos

Web3 social infrastructure platform enabling on-chain identity, social graph, and developer APIs that enable apps to integrate feeds, follows, and engagement features. Focused on building scalable backend services and tooling for decentralized applications.

Full-Stack Web3 Developer · TapestryJul 2024 – Sep 2025 · 1 yr 3 mos
Frontend Developer · Fleet Management SaaS (Unknown)Jan 2023 – Apr 2024 · 1 yr 4 mos
Frontend Developer · RemotoJan 2023 – Jun 2024 · 1 yr 6 mos
Frontend Developer · RefooroJan 2023 – Jun 2024 · 1 yr 6 mos
Backend/Full-Stack Developer · Foster MarketplaceMar 2020 – Aug 2022 · 2 yrs 6 mos

Education

Bachelor of Computer Science · Vilnius Gediminas Technical University2030 – 2026
Bachelor's degree · Vilnius Gediminas Technical University2030 – 2026

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