Skip to main content
Leonardo Oliveira Das NevesLN
Looking for a job

Leonardo Oliveira Das Neves

@leonardooliveiradasn

I build scalable enterprise web applications with Angular, React, TypeScript, and front-end architecture.

Brazil
Message

What I'm looking for

I'm focused on Senior Front-End Engineer, Senior Software Engineer, or Tech Lead opportunities where I can build scalable applications, guide architecture and engineering practices, mentor developers, and collaborate across product and delivery teams.

I've built and evolved enterprise web applications for AmorSaúde, SulAmérica, Keyrus, Avanade, and CoreBiz, serving healthcare, insurance, banking, and e-commerce initiatives. My work centers on scalable Angular and React applications, reusable components, responsive experiences, REST integrations, and maintainable front-end architecture.

At AmorSaúde, I lead Angular and NestJS engineers, implemented Amazon Cognito SSO with MFA, and guide architecture, production delivery, mentoring, and hiring. I enjoy partnering with Product, UX/UI, QA, Back-End, and DevOps teams to turn complex requirements into reliable products.

Experience

Work history, roles, and key accomplishments

AmorSaúde logoAM

Tech Lead | Angular - TypeScript - JavaScript - Node.JS - AWS

Oct 2025 - Aug 2026 (10 months)

I worked as a Tech Lead at AmorSaúde, providing technical leadership to Front-End (Angular) and Back-End (NestJS) engineers, with responsibility for architecture, technical decisions, engineering best practices, and delivery through production.

• Led the implementation of a new SSO solution using Amazon Cognito (AWS) with MFA, strengthening application security and providing greater control over

SulAmérica Seguros Saúde logoSS

Senior Front End Software Engineer | Angular - TypeScript - RxJS - NgRx - Signa

May 2024 - Sep 2025 (1 year 4 months)

As a Senior Front-End Engineer at SulAmérica, I contributed to the evolution of enterprise web applications and business-critical features, focusing on scalability, performance, software quality, and user experience.

• Developed and delivered strategic features, including Limit Management and Rule Exception Registration modules, supporting essential operational processes and improving business ef

Keyrus logoKE

Senior Front End Software Engineer | Angular - TypeScript - RxJS - NgRx - Sign

Oct 2023 - Apr 2024 (6 months)

As a Senior Front-End Engineer at Keyrus, I contributed to the development and evolution of web applications, focusing on scalable, performant, and business-oriented solutions.

• Developed web applications and new features using Angular, TypeScript, JavaScript, HTML5, CSS3, and SCSS.

• Built reusable components and responsive interfaces following Front-End development best practices and architec

Avanade logoAV

Senior Front End Software Engineer | JavaScript - Angular - React - Typescript

Feb 2020 - Aug 2023 (3 years 6 months)

As a Senior Front-End Engineer at Avanade, I contributed to the development and evolution of enterprise web applications for major organizations across the financial, banking, and insurance sectors.

• Developed web applications and new features using Angular, React, TypeScript, JavaScript, RxJS, HTML5, CSS3, and SCSS.

• Worked on projects for major organizations including Santander, Itaú Unibanc

CoreBiz logoCO

Front End Developer | HTML5 - CSS - JavaScript - GraphQL - VTEX

Nov 2018 - Feb 2020 (1 year 3 months)

As a Front-End Developer at Corebiz, I worked on-site with Grupo Boticário, contributing to the development and evolution of e-commerce experiences on the VTEX platform, with a strong focus on performance, usability, campaigns, and customer experience.

• Developed and maintained custom landing pages and campaign experiences using HTML, CSS, JavaScript, and VTEX, supporting marketing initiatives a

UNINOVE logoUN

Trainee Service Desk | Windows - Microsoft 365 - Remote Desktop

May 2017 - Jun 2018 (1 year 1 month)

* Triage of calls: I start the day by reviewing the queue of open calls, prioritizing them according to urgency and importance. I analyze the descriptions of problems reported by users and classify them in order of response.

* Answering calls: I answer user calls by phone, email or ticket system, as per the guidelines of the support team. I listen carefully to user issues, ask additional question

Education

Degrees, certifications, and relevant coursework

UJ

Uninove - Universidade Nove de Julho

Bachelor of Information Systems, Tecnologia da Informação

2015 - 2019

Universidade Nove de Julho logoUJ

Universidade Nove de Julho

Bachelor of Information Systems, Information Technology

2015 - 2019

Bachelor of Information Systems from Universidade Nove de Julho, completed in 2019.

UJ

Uninove - Universidade Nove de Julho

Information security, Network Management and Systems Security

2016 - 2018

Universidade Nove de Julho logoUJ

Universidade Nove de Julho

Information Security, Network Management and Systems Security

2016 - 2018

Degree in Information Security from Universidade Nove de Julho, completed in 2018.

Get matched with your dream remote job

Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!

Sign up
Himalayas profile for an example user named Frankie Sullivan