Sérgio Barriviera Miguel Email & Phone Number

London, England, United Kingdom

Responsible for designing and implementing a cloud-native architecture for a prize-linked savings platform composed of gamified products such as cash accounts, debit cards, and gift cards shop.Developing a hybrid mobile application using React Native and creating a serverless, microservice event-driven architecture hosted on AWS.As part of my responsibilities, I successfully managed a remote distributed team consisting of developers, testers, and designers. I also took charge of engaging with third-party service providers, including agencies, banking services, and identity verification companies.During this period, we achieved a significant milestone by obtaining approval from the Financial Conduct Authority (FCA). Through my contributions and leadership, I played a pivotal role in delivering a robust and scalable solution that met the company's objectives which gave the company the ability to get substantial investments, where two rounds of funding were obtained through crowdfunding, reflecting the trust and confidence of a broad community of investors in our innovative fintech platform. More information can be found at: https://www.crowdcube.com/companies/everup-ltd/pitches/lKnv7q?country=GBEverup - Prize Linked Apphttps://www.everup.uk/https://apps.apple.com/gb/app/everup/id1531616116https://play.google.com/store/apps/details?id=com.everup

Hong Kong Sar

Developing and maintaining smart contracts to manage digital game assets using industry-standard specifications such as ERC-20, ERC-721, and ERC-1155.Utilized Solidity programming and frameworks like Truffle and Hardhat to implement and deploy smart contracts on Ethereum Blockchain.Collaborated with security auditors to identify potential vulnerabilities and ensure the robustness of smart contract implementations.

London, England, United Kingdom

Responsible for creating a cloud-native architecture for a digital collectibles marketplace based on blockchain technology, using smart contracts to issue and manage digital assets (NFTs).As part of my role at SingularCK, I managed a remote distributed team comprising developers, testers, and designers. Reporting directly to the CEO, I oversaw the entire product lifecycle, including product requirements, development, integration, quality control, and deployment. Additionally, I monitored technical resources and performance KPIs since the product activation.Initially, I worked on-site for two months and later transitioned to a remote position.NinjaStickers Digital Collectibleshttps://www.ninjastickers.com/motogp/Web application created with Java based on Stellar and Ethereum Blockchain and AWS cloud servicesDue to the company's successful business, it was acquired by an Asian company (Animoca Brands) specializing in games and blockchain. More information can be found at: https://www.animocabrands.com/acquires-ninjastickers

São Paulo Area, Brazil

Responsible for the entire project lifecycle, such as payment gateways, internet banking, and billing systems, from inception to delivery, utilizing agile software development methodology able to support some of the CMMi requirements (Levels 2 and 3).Main Projects- Invoice and Billing Systems- Payment Gateway (Mainframe - JCA/CTG, SOAP, and REST Integration. Using ISO 8583 as Message Standard and IBM ConnectDirect to exchange data)- Internet Banking (Mainframe - JCA/CTG, SOAP, and IBM MQ Integration)- Designing and Implementing a Mobile Native Android Architecture considering resource optimization and offline scenarios- Using Containers and Cloud Providers to create Cloud-Native applications: Docker, Kubernetes, Heroku, and AWS (S3, EC2, ECS, ECR, CloudWatch, CloudTrail, Lambda, and other services)- Software performance and optimization analysis reports- RPA (Automation Anywhere)Main CustomersFinancial Institutions and Banking​​ (Brazil)Telco - Zeroasette (Italy)

Porto Area, Portugal

Developing Customer Relationship Management Software Integrated with Telco/CTI Solutions.Main ProjectsUnified Front-end in Retail and Call Centres. UFE is designed over Celfocus Omnichannel, a telco-oriented solution designed and owned by Celfocus (JEE based on Oracle solutions). GDPR compliance application.Main CustomersTelco - Vodafone (Ireland)

São Paulo Area, Brazil

Dealing with full project life cycle development for high-performance desktop, web, and mobile applications. Applying Gamification to engage users and customers in order to connect smaller tasks to larger goals.Main Projects- E-commerce Application (White label platform)- Electronic Payments (API Spec and Backend Development)- Payment Gateway (Mainframe - JCA/CTG, SOAP, and REST Integration. Using ISO 8583 as Message Standard and IBM ConnectDirect to exchange data)- Internet Banking (Mainframe - JCA/CTG, SOAP, and IBM MQ Series Integration)- Invoice and Billing Software- Mobile Contactless Payment (NFC) and Wallet App Specification- Monitoring, Data analysis, ETL, KPI Composition, and Web Reports- Corporate WebSites with CMS Integration- Risk Management System (Fraud Detection and Prevention: Rule-based system)- Financial Simulation Tool (Insurance)- RPA (Automation Anywhere)Main CustomersFinancial Institutions and Banking​​ (Brazil and Italy)

São Paulo Area, Brazil

Caring for Online Stock Trading - Safra Home Broker

São Paulo Area, Brazil

Developing Customer Relationship Management Software Integrated with Telecom/CTI Solutions

São Paulo Area, Brazil

Financial Products Simulation Tool​​ (loans and investments)

São Paulo Area, Brazil

Creation of brands, logos, websites, and e-commerce platforms.Working with CGI, Perl, and ASP as the main technology stack.

Master'S Degree, Computer Software Engineering

Postgraduate Education, Software Engineering

Specialization, Project Management

Bachelor'S Degree, Social Communication Having Specialized In Advertising And Publicity