cleider87
Cleider Herrera
Porto, Portugal

I am a professional with over 8 years of experience in developing and designing advanced technological solutions, with a focus on integrating and supporting corporate tools and applications. My expertise spans backend development and QA automation, with strong knowledge of cloud technologies such as AWS, Azure, and Google Cloud, as well as microservices architecture.

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This represents your current experience. It calculates by analyzing your connected repositories. By measuring your skills by your code, we are creating the ranking, so you can know how good are you comparing to another developers and what you have to improve to be better

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221
CodersRank Rank
Top 4%
Top 1
NestJS
NestJS
Developer
Portugal
Top 50
TypeScript
TypeScript
Developer
Portugal
Highest experience points: 0 points,

0 activities in the last year

List your work history, including any contracts or internships
Independent Consultant
1 year 4 months
Remote
Backend Engineer
Jul 2023 - May 2024 (10 months)
Assigned to Inditex as a Backend Engineer, I participated in the development of new features and the resolution of critical issues for authentication and product information systems. I worked with technologies such as NodeJS, TypeScript, MongoDB, AWS, S3, Docker, and Redis, and collaborated on the migration of services from Azure to AWS, applying hexagonal architecture principles and software development best practices.

In addition to my development responsibilities, I played a key role in ensuring code quality by implementing automated tests, as our teams did not have a dedicated QA team. I contributed to the design and execution of unit, integration, and performance tests using tools like Karate for integration tests, k6 for performance tests, and Postman for API validation. I applied these strategies to ensure quality in every new feature and optimize service stability.

Additionally, I participated in code reviews, promoting best software development practices and ensuring coverage with automated tests.
typescript nodeJS jest aws azure mongodb mongoose redis expressjs docker aws lambda
Software Engineer
Oct 2022 - Apr 2023 (6 months)
I collaborated with cross-functional teams to design and implement innovative features based on microservices architectures, using technologies like AWS, React Native, NestJS, Express.js, Docker, Linux, MySQL and MongoDB. I also worked with Elasticsearch (OpenSearch) and monitoring tools like Kibana.

I contributed to projects involving ETL process updates and the development of a PWA in React Native. For API testing, I used Postman as part of the automation process. Since we didn’t have a dedicated QA team, each developer was responsible for implementing automated tests, including unit, functional, integration, and performance tests. Additionally, I participated in code reviews and peer reviews, led by the technical team.
React Native NestJS typescript aws aws lambda mariadb ReactJS mysql elasticsearch
Neta MX
Apr 2022 - Sep 2022 (5 months)
Remote
Technical Team Lead
As the Technical Lead for two squads (Delivery and Warehouse), I was responsible for designing and validating scalable, high-performance solutions, implementing best practices in Back End engineering. I worked closely with cross-functional teams and coordinated solution architecture through interdepartmental meetings, ensuring alignment with business objectives.

My role involved mentoring developers, conducting thorough code reviews, and performing white-box testing to ensure software quality. I championed the adoption of TDD (Test-Driven Development) during development phases, promoted the use of gitflow for efficient code management, and focused on microservices architecture. I implemented agile methodologies to streamline workflows and ensure continuous, effective delivery of value.

Additionally, I monitored team tasks to align with established priorities and proactively collaborated on resolving development support issues, ensuring smooth daily operations.
typescript ReactJS NestJS ExpressJS sequelizejs mongodb npm mongoose aws aws lambda
Yappa World inc
Nov 2020 - Mar 2022 (1 year 4 months)
Remote
Back End Engineer
In this position, I had a role that was 80% development and 20% automation QA. In the development aspect, I was responsible for designing and implementing APIs and microservices architecture using advanced technologies such as AWS, AWS Lambda Functions, Serverless, Nest.js, Express.js, MySQL, and NATS. Notable projects included developing new features for the Comments API, as well as building the Media API and Moderation API from scratch.

In the realm of automation QA, I was tasked with developing and maintaining automated tests to ensure software quality. I implemented functional testing using tools like Selenium, Java, Selenium WebDriver, TestNG, and Allure Report. Additionally, I conducted API tests with Newman (Postman) and performance testing with JMeter. I applied agile methodologies to manage projects, facilitating continuous and effective delivery of value.
typescript NestJS serverless aws lambda amazon s3 ffmpeg NATS ExpressJS aws newman selenium SequelizeJS typeorm

Add some compelling projects here to demonstrate your experience
Radio Fe y Alegrí­a Noticias
Jul 2020 - Present
Radio Fe y Alegrí­a Noticias
Radio Fe y Alegría News.

We are an Information Agency based in Venezuela. Committed to education and the community.

"With all voices"

Fe y Alegría Radio Institute (IRFA)
firebase flutter dart firebase google analytics android firestore
This section lets you add any degrees or diplomas you have earned.
Universidad Nacional Experimental Politécnica de la Fuerza Armada
Telecommunications Engineer, Telecommunications
Sep 2007 - May 2013
Telecommunications Engineer
IBM
E-bussines Application Development Certificate: Application Development
Jan 2010
IBM
E-business Application Developer Program: IT and Networking Fundamentals
Jan 2009
HackerRank
Rest API (Intermediate)
Feb 2021

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