Angel Costa Larangeira

Yolo Group – Global technology company based in Estonia, operating in the iGaming, fintech, and blockchain sectors.

• Built and maintained backend services in Elixir, powering a scalable B2B iGaming aggregation platform.
• Designed and integrated APIs for game providers, operators, and products within the Hub88 ecosystem.
• TDD practices.
• Actively contributed to system architecture and design discussions, shaping scalable solutions in the iGaming space.
• Collaborated with cross-functional teams to define project requirements and ensure timely delivery.
• Elixir / Graphql / Postgresql / Jenkins / ClickHouse / Docker / CI/CD / Java.

Stone is a Brazilian fintech offering multibank acquiring services, processing credit, debit, and voucher card transactions through card machines.

• Implementation of new features.
• Investigation of code behavior.
• Improvement of code performance.
• Integrated third-party APIs to expand application capabilities and improve user experience.
• Designed and developed scalable backend systems using Elixir and Phoenix framework.
• TDD
• Elixir / REST / Docker / Phoenix / Oban.

Payfy is a fintech company offering a web app solution for efficiently managing corporate expenses.

• Development of new features in the fintech area for cost management solutions dealing with (transactions, integrations with acquirers, reconciliations, anti-fraud, compliance)..
• Code maintenance.
• TDD.
• Collaborated with frontend developers to optimise application performance and maintain seamless functionality.
• Elixir / Phoenix / Docker / React.

Camino Education is an educational institution dedicated to active learning, with its complete platform and content accessible through webapp.

• WebApp development using Elixir / Docker / Git / Postgresql.
• Rotational: Mobile development with Flutter, Mobx. Experience with SOLID Design Pattern.
• TDD.
• Rotational: QA, product-oriented software testing, mind mapping, bug reproduction, unit testing, component testing.

Veksti, it was a startup with a diverse portfolio of projects, prominently featured a telemedicine website as primary product.

• Development of web apps for various partners, with a focus on healthcare.
• Development of applications with sensors using JS.
• Technologies used include JavaScript/React/MongoDB.