BERJAYA
Ana Neri is an influencer

Senior Software Engineer @ Clutch

São Paulo, São Paulo, Brazil
61K followers 500+ connections

BERJAYA BERJAYA BERJAYA

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About

I’m a Senior Software Engineer with 7 years of experience building scalable, high-performance applications across backend and frontend, primarily using Node.js, JavaScript, NestJS, and PostgreSQL. I thrive on solving complex problems with simple, elegant solutions, always keeping performance and scalability in mind.

Throughout my career, I’ve contributed to impactful projects in the financial sector, where I helped build robust transactional systems with well-designed architecture and resilient infrastructure. I’ve also led initiatives like migrating legacy systems to service-oriented architectures and improving observability and test coverage, significantly reducing incident rates and deployment friction.

I’ve taken on team leadership responsibilities: refining technical tasks, estimating effort, and mentoring junior developers, while also guiding teams toward better engineering practices. Currently, I’m focused on growing into stronger technical leadership roles.

Outside of work, I help organize the NodeBR community, where I’m involved in speaker curation, volunteer coordination, and running local meetups. I believe in learning in public and often share my insights through my blog, GitHub, and LinkedIn.

More about me on: https://ananeri.dev/

Articles by Ana

  • O paradoxo do novo "dev"
    BERJAYA

    Agentes, gargalos arquiteturais e o futuro da engenharia Existe um fenômeno estranho acontecendo, que tenho notado…

    BERJAYA BERJAYA BERJAYA
    16 Comments
  • Estou criando meu microSaaS ... e está dando tudo errado (ou quase)
    BERJAYA

    Parece que todo dev decidiu criar um SaaS nos últimos tempos. Basta abrir o Twitter ou o LinkedIn: tem sempre alguém…

    BERJAYA BERJAYA BERJAYA
    8 Comments
  • Pirâmide de testes é uma mentira
    BERJAYA

    A pirâmide de testes é um dos conceitos mais repetidos em engenharia de software. Ela propõe uma estrutura idealizada…

    BERJAYA BERJAYA BERJAYA
    5 Comments
  • Boas práticas em APIs Rest
    BERJAYA

    Com o uso massivo de IA generativa, ficou mais fácil “fazer funcionar” do que “desenvolver bem”. Sem sequer um norte…

    BERJAYA BERJAYA BERJAYA
    9 Comments
  • Descomplicando System Design
    BERJAYA

    Na newsletter de hoje eu quero passar em alguns temas que podem te ajudar a desmitificar o ponto de que System Design é…

    BERJAYA BERJAYA BERJAYA
    8 Comments
  • Criando System Design na prática
    BERJAYA

    Criando um system deign do zero do Ingresso.com! Algumas newsletters passados eu estive aqui falando sobre alguns…

    BERJAYA BERJAYA BERJAYA
    16 Comments
  • Aprendi o que é vibe coding esses dias
    BERJAYA

    Essa semana me encontrei sem muita inspiração para escrever algo técnico. Estou trabalhando em alguns temas sobre CI…

    BERJAYA BERJAYA BERJAYA
    22 Comments
  • Não mude de SQL pra NoSQL sem antes saber sobre Desnormalização!!!!
    BERJAYA

    Seu problema de performance pode estar na modelagem dos dados 😬 Às vezes nos pegamos muito naquela discussão de que:…

    BERJAYA BERJAYA BERJAYA
    2 Comments
  • Testes A/B são inúteis só pra dev que não sabe interpretar dados!
    BERJAYA

    Se você trabalha com desenvolvimento de aplicativos, backend ou DevOps, inevitavelmente vai se deparar com dilemas…

    BERJAYA BERJAYA BERJAYA
    2 Comments
  • Aprenda a usar Cache Inteligente!
    BERJAYA

    Cache: o detalhe técnico que muda tudo Se você já sofreu com endpoints lentos ou sobrecarga no banco de dados, talvez o…

    BERJAYA BERJAYA BERJAYA
    9 Comments

Activity

61K followers

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Experience

  • Clutch Graphic

    Senior Software Engineer @ Internal Tooling

    Clutch

    - Present 6 months

    San Francisco, California, United States

  • Avenue Code Graphic

    Senior Software Engineer

    Avenue Code

    - 1 year 9 months

    San Francisco, California, United States

    Providing backend consulting and development for one of Brazil’s largest retail groups, focused on distributed systems with monorepos with Node.js, Typescript, and NestJS.

    - Built and maintained monorepos for promotion and mission-based engagement systems used across 30+ shopping centers.

    - Designed scalable solutions to handle major retail events (e.g. Black Friday), ensuring high availability and zero downtime.

    - Reduced APIs responses time by 40% by implementing caching…

    Providing backend consulting and development for one of Brazil’s largest retail groups, focused on distributed systems with monorepos with Node.js, Typescript, and NestJS.

    - Built and maintained monorepos for promotion and mission-based engagement systems used across 30+ shopping centers.

    - Designed scalable solutions to handle major retail events (e.g. Black Friday), ensuring high availability and zero downtime.

    - Reduced APIs responses time by 40% by implementing caching strategies and optimizing data flows.

    - Led architectural reviews and MVPs for new features, helping teams adopt event-driven and modular approaches.

    - Supported cross-squad integration and improved platform reliability by refactoring legacy services into horizontally scalable components.

    - Acted as tech reference in the squad, mentoring developers and defining backend standards.

  • Grupo PRIMO Graphic

    Senior Software Engineer

    Grupo PRIMO

    - 8 months

    São Paulo, São Paulo, Brazil

    Worked on Finclass, one of Brazil’s largest finance streaming platforms, delivering end-to-end solutions with a strong focus on performance, scalability, and user experience.

    - Refactored the core system using Clean Architecture, improving maintainability and onboarding for new developers.

    - Built key features like personalized course recommendations and a custom report section, enhancing user engagement and retention.

    - Collaborated closely with product and leadership…

    Worked on Finclass, one of Brazil’s largest finance streaming platforms, delivering end-to-end solutions with a strong focus on performance, scalability, and user experience.

    - Refactored the core system using Clean Architecture, improving maintainability and onboarding for new developers.

    - Built key features like personalized course recommendations and a custom report section, enhancing user engagement and retention.

    - Collaborated closely with product and leadership teams, driving discovery-to-delivery of new features with full ownership.

    - Supported the platform during Black Friday, handling thousands of simultaneous users with zero downtime or performance issues.

    - Drove improvements in observability, automated testing, and CI/CD, boosting delivery speed and product confidence.

  • Pravaler Graphic

    Senior Software Engineer

    Pravaler

    - 8 months

    São Paulo, Brazil

    Delivered new features while actively participating in architecture discussions to implement evolving business rules.

    - Built a student financing calculator to automate credit and tax calculations, reducing manual work for the finance team from weeks to minutes.

    - Advocated for SOLID principles and clean design patterns in all code contributions, ensuring maintainability and clarity.

    - Designed and optimized Node.js streams to improve system performance during high-load…

    Delivered new features while actively participating in architecture discussions to implement evolving business rules.

    - Built a student financing calculator to automate credit and tax calculations, reducing manual work for the finance team from weeks to minutes.

    - Advocated for SOLID principles and clean design patterns in all code contributions, ensuring maintainability and clarity.

    - Designed and optimized Node.js streams to improve system performance during high-load data processing.

    - Used Google Cloud tools for observability, ensuring uptime and fast incident response.

    - Acted as a bridge between engineering and management, leading initiatives to refactor legacy logic into scalable, testable modules.

    - Promoted team communication through tech talks, pair programming, and mentoring.

  • Rocketseat Graphic

    Creator

    Rocketseat

    - 2 years 5 months

    As part of the Experts Club Creators program, I constantly produce hands-on video classes through which I share technical content that I have gathered throughout my career. I present technologies and solutions inside my expertise in backend with the objective of helping developers that participate on Experts Club on the challenge of the never ending and on-demand learning process.

  • PicPay Graphic

    Mid Level Software Engineer

    PicPay

    - 1 year 3 months

    Worked on the PicPay Card product, developing scalable backend solutions used by millions of users.

    - Delivered and maintained communication services integrating with third-party APIs, ensuring stability and performance at scale.

    - Improved existing microservices to enhance reliability and system throughput during high-volume operations.

    - Identified technical bottlenecks and proactively proposed system improvements, contributing to faster and safer deliveries.

    -…

    Worked on the PicPay Card product, developing scalable backend solutions used by millions of users.

    - Delivered and maintained communication services integrating with third-party APIs, ensuring stability and performance at scale.

    - Improved existing microservices to enhance reliability and system throughput during high-volume operations.

    - Identified technical bottlenecks and proactively proposed system improvements, contributing to faster and safer deliveries.

    - Collaborated closely with the team through code reviews, pairing, and clean design discussions to uphold engineering standards.

    - Shared knowledge and mentored peers, fostering a collaborative and growth-oriented team environment.

    - Actively contributed to building a high-quality codebase through TDD, Clean Code, and SOLID practices.

  • 99 Graphic

    Mid-Level Software Engineer

    99

    - 5 months

    São Paulo, Brasil

    Within the 99app I had with very cool exponential growth, I was able to work
    with
    more responsibility and with a product rich in patterns and good practices.
    I worked on an internal product where I got direct contact with TDD - Test
    Driven
    Development, Spring Cloud, Netflix OSS, AWS, Rancher, Docker, Jenkins,
    Builder patterns and Feign client.
    My responsibilities were to implement always end-to-end features, being thus
    responsible for participating in architecture…

    Within the 99app I had with very cool exponential growth, I was able to work
    with
    more responsibility and with a product rich in patterns and good practices.
    I worked on an internal product where I got direct contact with TDD - Test
    Driven
    Development, Spring Cloud, Netflix OSS, AWS, Rancher, Docker, Jenkins,
    Builder patterns and Feign client.
    My responsibilities were to implement always end-to-end features, being thus
    responsible for participating in architecture meetings, development, and final
    deployment. The last project I participated in was the implementation of a new
    functionalities where I could go through all stages of software development.

  • Banco Itaú

    Banco Itaú

    1 year

    • Banco Itaú Graphic

      Junior Java Software Engineer

      Banco Itaú

      - 5 months

      Platform Evolution Squad
      Evolution of the platform is a squad responsible for developing an internal Itaú bank framework based on Spring Boot, which aims to facilitate the life of the native backend cloud developers.
      Where I had the vast knowledge of Java profoundly with real high level applications, commitment to implementing Unit Tests in all features, and Integration Tests.
      I took an active part in Java architecture decisions, together with AWS services (Lambda, SQS), and finally…

      Platform Evolution Squad
      Evolution of the platform is a squad responsible for developing an internal Itaú bank framework based on Spring Boot, which aims to facilitate the life of the native backend cloud developers.
      Where I had the vast knowledge of Java profoundly with real high level applications, commitment to implementing Unit Tests in all features, and Integration Tests.
      I took an active part in Java architecture decisions, together with AWS services (Lambda, SQS), and finally improved my code because I received much mentoring from a very well-trained team.

    • Itaú Unibanco Graphic

      Junior Software Engineer

      Itaú Unibanco

      - 7 months

      PJ Building Squads
      I work directly on loan and renegotiation solutions for legal entities where I actively participated in End to End architecture decisions and story development from the front end to the back end. I was able to have contact with Java differently since it was implemented in a large company, so I always needed to aim for the best possible code that would not impact other classes or other apps. I was also able to have my first account with the Angular framework since Itaú has…

      PJ Building Squads
      I work directly on loan and renegotiation solutions for legal entities where I actively participated in End to End architecture decisions and story development from the front end to the back end. I was able to have contact with Java differently since it was implemented in a large company, so I always needed to aim for the best possible code that would not impact other classes or other apps. I was also able to have my first account with the Angular framework since Itaú has its own design system, Voxel.

  • AirOn Group Graphic

    Junior Java Developer

    AirOn Group

    - 5 months

    São Paulo

    Airon Inovação is an American Latina micro-company that came from Vivo, whose main product was a post-management and maintenance software for technicians.
    I worked directly with this software that had all its backend in Java EE 8, and its front end with a google web tool kit called GWT and GXT.

  • DIGISYSTEM - IT Solutions

    DIGISYSTEM - IT Solutions

    1 year 1 month

    • DIGISYSTEM - IT Solutions Graphic

      Support Analyst Intern

      DIGISYSTEM - IT Solutions

      - 6 months

      Still at Digisystem, I had the opportunity to change the area where I went to work with one of Oracle's products: PeopleSoft.
      PeopleSoft is an ERP aimed at business administration, fully customizable, supported by Oracle Database and developed largely and Java and in PeopleTools.
      I worked in customer support Level 1 and Level 2, where my main objective was to receive calls from professionals of Cultura Inglesa, and solve their problem in time of call.

    • Digisystem Graphic

      Multi Cloud Intern

      Digisystem

      - 10 months

      Digisystem is a company focused on the best solution for the client where there are several services within it to make this happen, there I had the opportunity to start my career as a Multi Cloud Intern. This means that I worked with Cloud Architects in Move to Cloud services for many clients.
      Such actions and follow-up made it possible to obtain certifications, one of them in AWS Technical Professinal.

Education

  • MBA USP/Esalq Graphic

    MBA USP/Esalq

    Executive MBA in Leadership and Management Organizational Leadership

    -

    Currently pursuing an MBA with a comprehensive curriculum covering strategic analysis, digital disruption, innovation ecosystems, ESG programs, and international business strategies. Focused studies include advanced methodologies such as Growth Hacking, Design Thinking, Agile Management, Lean Startup principles, and data-driven decision-making through Big Data, Business Intelligence, Data Science, and Artificial Intelligence.

    Additionally developing skills in effective leadership…

    Currently pursuing an MBA with a comprehensive curriculum covering strategic analysis, digital disruption, innovation ecosystems, ESG programs, and international business strategies. Focused studies include advanced methodologies such as Growth Hacking, Design Thinking, Agile Management, Lean Startup principles, and data-driven decision-making through Big Data, Business Intelligence, Data Science, and Artificial Intelligence.

    Additionally developing skills in effective leadership, emotional intelligence, high-performance team management, governance, inclusive leadership, executive communication, and mentoring & coaching to drive organizational transformation and innovation.

  • São Paulo Tech School - SPTech Graphic

    São Paulo Tech School - SPTech

    Analysis and Information of Systems

    -

  • ETEC Jorge Street Graphic

    ETEC Jorge Street

    technologist automation industry

    -

Licenses & Certifications

Volunteer Experience

  • NodeBR Graphic

    Community Leader

    NodeBR

    - Present 3 years 1 month

    At NodeBR, I carry out leadership and organizational work.
    We are a non-profit community; that being said, my work is exclusively voluntary.
    My main work is distributing tasks among the organizing volunteers (I currently lead ten volunteers) and distributing content and new channels.
    I organize face-to-face events in São Paulo and am on the committee that approves the submitted lectures.
    I also play an essential role in bringing diversity with technical quality to events.

  • JSNation Graphic

    Program Commitee

    JSNation

    - Present 3 months

    Science and Technology

    Collaboration on the lecture selection committee regarding the event guidelines.

  • Women Techmakers Graphic

    Ambassador

    Women Techmakers

    - 3 years 1 month

    Science and Technology

  • WoMakersCode Graphic

    Co-Organizer

    WoMakersCode

    - 5 years 1 month

    Science and Technology

    WoMakersCode is a nonprofit organization, where the goal is to empower women in technology, beyond the code, challenging the person behind the codes and inspiring her to conquer more. We want to transform the world with people, who use and make technology.

    We offer free training for women, having more than 20000 women around the country, with the support of incredible volunteers. Also, we are looking for companies with openness to D&I policies (or with a goal to build) to working closely…

    WoMakersCode is a nonprofit organization, where the goal is to empower women in technology, beyond the code, challenging the person behind the codes and inspiring her to conquer more. We want to transform the world with people, who use and make technology.

    We offer free training for women, having more than 20000 women around the country, with the support of incredible volunteers. Also, we are looking for companies with openness to D&I policies (or with a goal to build) to working closely and connect our community with job opportunities.

    See more: http://womakerscode.org

Skills

Courses

  • Arduíno

    -

  • Data Science

    -

  • Empreeendedorismo e Inovação

    -

  • HTML basico

    -

  • Oracle Cloud Infrastructure

    -

  • iPaaS - Oracle

    -

Projects

  • Ana Neri Dev

    I create engaging, tech-driven content for Senior Developers across social media — from short videos and in-depth technical breakdowns to insightful written posts designed to spark discussion and growth.

Languages

  • English

    Professional working proficiency

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