Daniel NascimentoTechnical Lead
Experienced Software Engineer (22y+) with a background in developing, scaling, architecting, securing, and maintaining large-scale web applications, micro services, and APIs in highly critical environments, serving millions of users daily, for the financial, healthcare, telco industries. I consider myself a passionate problem solver and helping people is what motivates me. My focus is to deliver and add value to the company and product, despite any tech preference. I strongly believe that we must use the right tools to achieve success in our deliverable instead of using what we know. Working in a diverse and multicultural team is very important to me. We learn with each other on a daily basis and get better prepared to surpass any company goals each sprint. As a leader I strongly believe in the servant leadership style and I’m always pushing hard to learn and use my knowledge to inspire people and help everyone to achieve further paths in their careers and goals. Skills Summary •Back end: Java, Kotlin, Python •Stack: Spring boot, Spring Cloud, Spring Security, Hibernate, JPA, jUnit, Mockito, Spock, gRPC, SQS, SNS, Kakfa •Database: Postgres, MySQl, MongoDb, BigQuery, SQL Server, Oracle •Architecture: DDD, Micro services •Cloud/Devops: AWS, GCP, Kubernetes •Tests: Unit, Integration, E2E •Front end: React.js, Vue.js
Tech stack
Java (7)
React (6)
Spring Boot (3)
AWS CloudFormation (2)
Vue.js (2)
PostgreSQL (2)
MongoDB (2)
SQL (2)
Docker (2)
Kotlin (2)
MySQL (2)
Microservices Architecture (1)
Spring (1)
Web (1)
Swagger (1)
Oracle SOA Suite
Project Management
Healthcare
Solr
JavaScript
Web Development
Communication
Experience
Senior Engineering LeadUpwork
11/2023 - Currently

Building 0-1 products and creating the next product's generation to the company

Java
Spring Boot
AWS CloudFormation
PostgreSQL
MongoDB
SQL
Vue.js
Tech Engineering LeadLuxera
12/2022 - 10/2023

Achievements: - Delivered the software 5x faster than expected by legacy platform modernization switching the architecture to microservices with Java/Spring Cloud and micro frontend in Vue.js - Increased by 15% new users to the platform after AWS Cognito user pool migration to allow a new set of sign in options - Reduced by 30% the total of new issues and regressions across all the different teams - Increased by 85% the unit and integrated test coverage using Spock framework Activities: - Created cloud formation scripts to create and migrate current users to the new user pool using the lambda trigger option. - Enabled MFA option to increase the security level authentication to EHR (Electronic Health Record) modules. - Created a state machine to handle occupancy status in EHR module improving accuracy and occupancy rates - Developed dozen of services with Spring boot to support all business requirements to clinical and billing modules

Java
Kotlin
Spring Boot
MySQL
React
Docker
Microservices Architecture
Senior Software EngineerZul Digital
09/2022 - 02/2023

Achievements - Estimated to increase corporate sales by 15% by integrating with a new payment gateway from BS2 Bank which allows enterprise accounts to pay their bills; micro service 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 to current users the ability to pay their car taxes in a web platform. - Increased organic traffic in 3x by SEO optimization in Wordpress. - Increased the pagespeed rank from 35 to 95 in both mobile and desktop version doing different tuning and optimizations Activities - Development of new microservices with Java and Kotlin, using both Spring boot and Micronaut - SEO optimization in both, React application and Wordpress key contents - Discussed and developed wireframes with the business to create a complete new experience in web platform

MySQL
React
Docker
Java
Web
Swagger
Kotlin
Spring
CTOMutuus Seguros — Insurance Canoas - BR
11/2018 - 08/2022

Jan 2022 - Aug 2022 ◦Reduced Sales Support Requests by 25%: Launched a web platform using React and a backend in Java (BFF pattern), streamlining processes and reducing the need for sales support. ◦Increased Conversion Rate by 10%: redesigned the online questionnaire in React and optimized Java microservices, enhancing user engagement. ◦Delivered Data Integration 8x Faster: leveraged N8N (no-code platform) to synchronize data between Active Campaign, HubSpot, and internal tools efficiently.

React
Java
Education
Big Data and Artificial Intelligence, MBAUniversidade de São Paulo
07/2024 - Currently
Data Science: FundamentalsUdacity
07/2019 - 07/2019
Innovation LeadersSemente Negocios
07/2018 - 07/2018
SPIN SellingBusiness School São Paulo
07/2014 - 07/2014
IT Management, Executive MBABusiness School São Paulo
02/2010 - 12/2012
Enterprise Architecture - TOGAFGnosis
07/2009 - 07/2009
Information Systems, BscIBTA
08/2007 - 12/2009
Electrical Engineering, BscUFU
08/2001 - 12/2004