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Hi, I'm Carlos Rojas, a passionate software engineer with extensive experience in mobile and web development, specializing in Flutter, blockchain technology, and cloud platforms. I've contributed to building financial products from the ground up and worked on integration projects with a strong focus on scalability, security, and efficiency. Currently, I work at BoFintech as a Full Stack Developer in web3 space, developing smart contracts and serverless backend functions. I enjoy designing innovative tech solutions that bridge traditional finance and blockchain ecosystems while continuously improving my skills in diverse programming environments.…Hi, I'm Carlos Rojas, a passionate software engineer with extensive experience in mobile and web development, specializing in Flutter, blockchain technology, and cloud platforms. I've contributed to building financial products from the ground up and worked on integration projects with a strong focus on scalability, security, and efficiency. Currently, I work at BoFintech as a Full Stack Developer in web3 space, developing smart contracts and serverless backend functions. I enjoy designing innovative tech solutions that bridge traditional finance and blockchain ecosystems while continuously improving my skills in diverse programming environments.

CARLOS ROJAS

Full Stack Developer, Blockchain Developer, DevOps Developer

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Hi, I'm Carlos Rojas, a passionate software engineer with extensive experience in mobile and web development, specializing in Flutter, blockchain technology, and cloud platforms. I've contributed to building financial products from the ground up and worked on integration projects with a strong focus on scalability, security, and efficiency. Currently, I work at BoFintech as a Full Stack Developer in web3 space, developing smart contracts and serverless backend functions. I enjoy designing innovative tech solutions that bridge traditional finance and blockchain ecosystems while continuously improving my skills in diverse programming environments.…Hi, I'm Carlos Rojas, a passionate software engineer with extensive experience in mobile and web development, specializing in Flutter, blockchain technology, and cloud platforms. I've contributed to building financial products from the ground up and worked on integration projects with a strong focus on scalability, security, and efficiency. Currently, I work at BoFintech as a Full Stack Developer in web3 space, developing smart contracts and serverless backend functions. I enjoy designing innovative tech solutions that bridge traditional finance and blockchain ecosystems while continuously improving my skills in diverse programming environments.

Available to hire

Hi, I’m Carlos Rojas, a passionate software engineer with extensive experience in mobile and web development, specializing in Flutter, blockchain technology, and cloud platforms. I’ve contributed to building financial products from the ground up and worked on integration projects with a strong focus on scalability, security, and efficiency.

Currently, I work at BoFintech as a Full Stack Developer in web3 space, developing smart contracts and serverless backend functions. I enjoy designing innovative tech solutions that bridge traditional finance and blockchain ecosystems while continuously improving my skills in diverse programming environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Portuguese

Intermediate

Work Experience

Software Engineer at Nubank

June 1, 2022 - Present

Joined initially as a mobile engineer for the savings-account Colombia team where I contributed to creating the mobile app product from scratch, implementing key features such as transfer-out, transfer-in, dashboard, PSE payments, feed, and statements. Worked on the cajitas product generating monthly yield for savings accounts. Supported the transfer-out global team building the DIMO project integrating with the Bank of Mexico's payment service through the SPEI platform. Currently, working in the Global transfers identifiers team designing and supporting products for Brazil (PIX), Mexico (DIMO), and Colombia building the Interbank Instant Payments project.

Flutter Developer at 57 Blocks

June 30, 2022 - July 23, 2025

Developed the WCP 57blocks mobile app from scratch using Flutter including projects tracking and PTO requests. Contributed to re-architecting the Tokenpad mobile app using clean architecture, dependency injection, and design patterns. Enhanced the app with integrations for crypto exchanges and wallets to view assets, track DeFi projects, monitor liquidation risks, and manage claimable tokens.

Full Stack Developer web3 at BoFintech

March 1, 2024 - Present

Developing and deploying smart contracts on Ethereum blockchain with testnet validations. Ensuring security best practices and optimizing gas efficiency. Designed and implemented AWS Lambda serverless functions to connect backend services with blockchain for improved scalability and cost efficiency. Managed Alchemy as a blockchain node provider enabling reliable access to Ethereum network data for transactions and contract interactions.

Full Stack Developer at Vision Mobile

July 31, 2018 - July 23, 2025

Worked on diverse projects including online course platforms and health web/mobile applications. Utilized Angular, Node.js, TypeScript, and Ionic to develop a mobile app connecting patients with doctors through video calls and chat, enhancing accessibility to healthcare services.

Ruby on Rails Developer at Paycode S.A.S

July 31, 2018 - July 23, 2025

Leveraged AWS services such as S3, SES, and SNS to develop a management panel and retail platform for a leading Colombian brand. Contributed to building high-quality applications that streamlined the retail process for both the brand and customers, enhancing retail efficiency.

Full Stack Developer at Servinformacion S.A.S

May 31, 2021 - July 23, 2025

Worked with Angular, Node.js, Python, and Flutter. Integrated Google Cloud Services with products to enhance efficiency and collaborated with colleagues to develop high-quality solutions exceeding expectations.