Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I’m Marcus Ferreira, I was a co-founder and Tech Lead at Pirraio Tech, from 2021 to 2023. I led end-to-end development across the stack, helping the startup reach a valuation of around $500k. As a freelancer and builder, I’ve shipped web and mobile apps using HTML, CSS, TypeScript, React.js, Next.js, Nest.js, Java, Spring Boot, AWS, Firebase, and MySQL. I enjoy Agile practices, team leadership, and turning ideas into scalable products. Also, I have experience in data annotation jobs, as I worked evaluating and helping to train AI with translations, áudio transcription and computer coding.…Hi, I’m Marcus Ferreira, I was a co-founder and Tech Lead at Pirraio Tech, from 2021 to 2023. I led end-to-end development across the stack, helping the startup reach a valuation of around $500k. As a freelancer and builder, I’ve shipped web and mobile apps using HTML, CSS, TypeScript, React.js, Next.js, Nest.js, Java, Spring Boot, AWS, Firebase, and MySQL. I enjoy Agile practices, team leadership, and turning ideas into scalable products. Also, I have experience in data annotation jobs, as I worked evaluating and helping to train AI with translations, áudio transcription and computer coding.

Marcus Ferreira

Full Stack Developer, Web Developer, Back-End Developer, +2





Hi, I’m Marcus Ferreira, I was a co-founder and Tech Lead at Pirraio Tech, from 2021 to 2023. I led end-to-end development across the stack, helping the startup reach a valuation of around $500k. As a freelancer and builder, I’ve shipped web and mobile apps using HTML, CSS, TypeScript, React.js, Next.js, Nest.js, Java, Spring Boot, AWS, Firebase, and MySQL. I enjoy Agile practices, team leadership, and turning ideas into scalable products. Also, I have experience in data annotation jobs, as I worked evaluating and helping to train AI with translations, áudio transcription and computer coding.…Hi, I’m Marcus Ferreira, I was a co-founder and Tech Lead at Pirraio Tech, from 2021 to 2023. I led end-to-end development across the stack, helping the startup reach a valuation of around $500k. As a freelancer and builder, I’ve shipped web and mobile apps using HTML, CSS, TypeScript, React.js, Next.js, Nest.js, Java, Spring Boot, AWS, Firebase, and MySQL. I enjoy Agile practices, team leadership, and turning ideas into scalable products. Also, I have experience in data annotation jobs, as I worked evaluating and helping to train AI with translations, áudio transcription and computer coding.

Available to hire

Hi, I’m Marcus Ferreira, I was a co-founder and Tech Lead at Pirraio Tech, from 2021 to 2023. I led end-to-end development across the stack, helping the startup reach a valuation of around $500k.

As a freelancer and builder, I’ve shipped web and mobile apps using HTML, CSS, TypeScript, React.js, Next.js, Nest.js, Java, Spring Boot, AWS, Firebase, and MySQL. I enjoy Agile practices, team leadership, and turning ideas into scalable products.

Also, I have experience in data annotation jobs, as I worked evaluating and helping to train AI with translations, áudio transcription and computer coding.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Portuguese

Fluent

Work Experience

Full Stack Developer (Freelancer) at Freelancer (Self-employed)

April 1, 2021 - December 1, 2023

Led end-to-end development of scalable web applications. Front-End: JavaScript, TypeScript, React.js, Next.js. Back-End: Java, Spring Boot, TypeScript, Nest.js. Infra: AWS, Firebase, MySQL, PostgreSQL. Other: Agile practices, team leadership, GitHub, entrepreneurship.

Co-founder & Tech Lead at Pirraio Tech

January 1, 2023 - Present

Co-founded a technology startup and acted as Tech Lead; main developer across the full stack. Led architecture and delivery of web and mobile applications for clients and internal products.