Hi, I'm

Maria Pallarés

Full Stack Developer

Building scalable web applications with modern technologies

5+

Years Experience

20+

Technologies

Maria Pallarés

About Me

I'm a passionate Full Stack Developer with 3+ years of experience building innovative web applications in the Web3 and fintech sectors. I specialize in React, Next.js, and TypeScript, with a strong focus on creating intuitive user experiences and implementing robust testing strategies.

Throughout my career, I've worked with dynamic startups and established companies, delivering high-quality software solutions that drive user engagement and business growth. My experience spans from blockchain staking platforms to corporate governance tools and crypto fintech applications.

Email

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Location

Lisbon, Portugal

Skills & Technologies

Frontend

JavaScriptReactReact NativeNext.jsTypeScriptTailwind CSSReduxZustandWagmiEthers.js

Backend

Node.jsSolidityExpressGraphQLREST APIsViemWeb3

Database

PostgreSQLMongoDBRedisMySQL

Tools & DevOps

GitCI/CDVitestJestCypressFoundry

Featured Projects

Here are some of my recent projects that showcase my skills and experience in building modern web applications.

E

ERC1155 NFT Claim App

Web3 application for claiming ERC1155 NFTs with wallet integration and real-time updates.

Next.js 15React 19TypeScriptwagmi v2+2 more
Frontend
E

ERC-4626 Vault Deposit Library

TypeScript library for secure ERC-4626 vault deposit transactions with comprehensive validation.

TypeScriptViemFoundryBun+2 more
Backend
S

Staking Rewards

App to find the best yield opportunities across verified providers.

ReactNext.jsTypeScriptGraphQL+1 more
Frontend

Work Experience

My professional journey and the companies I've had the privilege to work with.

Frontend Engineer

Current

Staking Rewards

1 year and 6 months

Leading frontend development for Web3 staking platform, focusing on multi-chain integration and user experience optimization.

Key Achievements

  • Integrated multiple crypto assets into the staking app by interfacing with internal Web3 SDK and smart contract methods, significantly expanding protocol coverage
  • Successfully migrated entire frontend architecture from Next.js 13 to Next.js 15, improving performance and aligning with latest framework standards
  • Took full ownership of core app sections including the Reward Options Table, improving user engagement and strengthening VSP value proposition
  • Built and maintained comprehensive E2E test coverage using Cypress, leading frontend testing strategy and ensuring long-term stability
  • Technologies: React, Next.js 15, GraphQL, Tailwind CSS, Google Cloud, Jest, Cypress

Software Engineer

Fides Technology

2 years

Full-stack development for corporate governance platform, delivering features that increased customer satisfaction and development efficiency.

Key Achievements

  • Delivered key features including shareholder import, secret voting, and German commercial register integration, increasing customer satisfaction by 20%
  • Designed and implemented maintainable, reusable components for in-house UI library, saving 100+ hours of development time across teams
  • Created CI/CD pipelines and automation workflows, streamlining deployment processes and reducing manual intervention
  • Led frontend testing initiatives, contributing 40% of company's total frontend and E2E test coverage
  • Technologies: TypeScript, Redux, Node.js, TypeORM, PostgreSQL, AWS, Jest

Software Engineer

Nuri GmbH

1 year

Full-stack development for fintech mobile and web applications, implementing new features and improving user experience.

Key Achievements

  • Maintained and enhanced native mobile app and web application, delivering consistent feature updates and bug fixes
  • Applied AGILE principles and provided solutions for customer-facing applications and internal tools
  • Collaborated with marketing and design teams to redesign Crypto section in native app, increasing user experience metrics by 20%
  • Implemented automated testing strategies and conducted manual testing to ensure application quality
  • Technologies: TypeScript, React Native, GraphQL, Apollo Client, MongoDB, SQL, Jest, Redis, AWS

Get In Touch

Have a project in mind or want to collaborate? Feel free to reach out!

Let's Connect

I'm always interested in hearing about new projects and opportunities. Whether you have a question or just want to say hi, feel free to get in touch!

Email

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Location

Lisbon, Portugal

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