Daniel is a Senior Full-stack Developer with CTO experience, strong project management skills, and a detail-oriented approach to overseeing projects from start to finish. With 20+ years of experience and background in developing, scaling, architecting, securing, and maintaining large-scale web applications, microservices, and APIs in highly critical environments, he serves millions of users in the finance, healthcare, and telco industries. Daniel works on software development, design, and architecture, ensuring solutions remain functional and provide the best possible user experience. He evaluates and analyzes technical issues to resolve them and maintain all systems within best practices.
Created cloud formation scripts to create and migrate current users to the new user pool using the Lambda trigger option.
Enabled MFA to increase the security level authentication to EHR (Electronic Health Record) modules.
Created a state machine to handle occupancy status in the EHR module, improving accuracy and occupancy rates.
Developed a dozen services with Spring Boot to support all business requirements for clinical and billing modules.
Developed batch jobs to process occupancy status and billing data.
Delivered software 5x faster than expected through legacy platform modernization, switching the architecture to microservices with Java/Spring Cloud and micro-frontend in Vue.js.
Increased new users to the platform by 15% after AWS Cognito user pool migration to allow a new set of sign-in options.
Reduced the total number of new issues and regressions across all teams by 30%.
Increased unit and integration test coverage by 85% using Spock framework.
Developed new microservices with Java and Kotlin using both Spring Boot and Micronaut.
Worked on SEO optimization in React application and WordPress key contents, increasing organic traffic threefold.
Discussed and developed wireframes with the business to create a complete new experience on the web platform.
Estimated to increase corporate sales by 15% by integrating with a new payment gateway from BS2 Bank allowing enterprise accounts to pay their bills (microservice built with Spring Boot and Kotlin).
Estimated to achieve a 25% increase in revenue in 2023 by creating a web platform in React.js to provide current users the ability to pay their car taxes on a web platform.
Increased the page speed rank from 35 to 95 in both mobile and desktop versions through tuning and optimizations.
Developed APIs in Go that measure the risk level of accounts and passwords that have already been leaked, reducing 10% of security breaches on authentication.
Created a new brand site to www.minhasenha.com and automated workflows to identify potential customers, increasing lead generation by 5%.
Created wireframes for hypothesis validation and presented them to potential customers to collect feedback.
Created workflows to identify corporate accounts with leaked credentials to fill the sales pipeline with new leads.
Conducted 80+ qualitative researches with C-levels, potential customers, security specialists to collect feedback and identify pain points to be explored by the product.
Led a team of 10+ engineers to manage and maintain the network, software, and cloud infrastructure.
Introduced modern technologies on products, evolving the product roadmap to align with the company's growth and innovation needs.
Provided new solutions to improve processes, enhance the viability of IT systems, and deliver high-quality products.
Launched a web platform developed in React and back end in Java using a BFF pattern, reducing by 25% the support from sales people.
Redesigned the online questionnaire in React and optimized the Java microservices that it supports, increasing the conversion rate by 10%.
Delivered 8x faster data integration and synchronization between Active Campaign, HubSpot, and internal back-office tools using n8n, a no-code platform.
Integrated Google and Facebook campaigns and company systems (customer questionnaires and sales tools), reducing CPL (cost per lead) by 50%.
Led a team of 20+ professionals to deliver cross-functional, cross-team, and cross-plan efforts on enterprise projects.
Planned, forecasted, and managed resource allocation/cost approvals and influenced the outcome of initiatives and priorities.
Established a framework to mentor local teams/talent and introduced career development best practices to improve performance.
Delivered a better experience to customers rent-a-car in a digital transformation project with a front end in React.js, mobile in Objective-C/Kotlin, and back end in Java and Solr, resulting in a 10% revenue increase.
Recovered $15M in revenue by adding support to old IE versions (7 and 8) after a digital transformation project that adopted a modern front-end architecture with React.
Mentored the local team aligned with global career development practices (1:1s, monthly reviews, round robins, nine box, performance reviews).
Oversaw the delivery of multiple digital transformation projects for Grupo Fleury, working on a new website and exams platform.
Adopted a new regulatory protocol (TISS) to enhance and scale the process for new insurers.
Coordinated and oversaw the execution of all project tasks and workstreams by the SOA team from Grupo Fleury.
Created a domain of services in Oracle SOA Suite and orchestrated them with different projects across the organization, increasing the reuse of services by 70%.
Led the CoE SOA team and participated in SOA adoption initiatives, preparing the methodology, artifacts, PoC, and software decisions (Oracle SOA Suite).
