Open to opportunities

Sam Wade

@samwade

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Experienced full stack developer with over 10 years in tech.

Poland

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What I'm looking for

I seek a challenging role in a dynamic environment that fosters innovation and collaboration, allowing me to leverage my full stack expertise while contributing to impactful projects.

I'm Merek Araya, a seasoned full stack developer with over a decade of experience in designing, developing, and deploying scalable applications across various sectors, including finance, investment, and transportation. My expertise lies in backend technologies such as .NET frameworks, NestJS, and FastAPI, complemented by proficiency in modern front-end frameworks like React and React Native. I have a proven track record of building secure, RESTful APIs and managing cloud infrastructure on AWS with Docker and Kubernetes.

Throughout my career, I have successfully collaborated cross-functionally in agile environments, delivering robust, high-performance solutions for both web and mobile platforms. At Mobilise, I developed secure RESTful APIs that significantly reduced access-related incidents and built a cross-platform taxi app that improved user engagement. My commitment to performance optimization and security best practices has consistently resulted in enhanced system responsiveness and user satisfaction.

Experience

Work history, roles, and key accomplishments

Full Stack Developer

Mobilise

May 2022 - Feb 2025 (2 years 9 months)

Developed secure RESTful APIs using Spring Boot and JWT, reducing access-related incidents by 90%. Delivered a cross-platform taxi app in React Native, improving user engagement and reaching 1k+ users. Built responsive, single-page applications using React, React Router, and Axios for API communication.

Spring Boot JWT Firebase React Native React React Router Axios PostgreSQL AWS RDS Docker CI CD azure monitor Application Insights Bitbucket Jira

Backend Developer

Santander Consumer Finance

Jun 2020 - May 2022 (1 year 11 months)

Developed backend services with .NET Core and deployed microservices to Azure using Docker and Azure App Services. Designed and maintained backend services using C# and .NET Core, improving system performance and scalability. Implemented JWT-based authentication with role-based access control to ensure secure and segmented access.

.NET Core Azure Docker Azure Services C#Swagger JWT Microsoft SQL Server CI CD Azure DevOps GitHub Actions GitHub

Junior JavaScript Developer

CD Finance Poland

Oct 2016 - May 2020 (3 years 7 months)

Built and maintained internal financial dashboards and reporting tools using React and Redux, streamlining data visibility for finance teams. Developed 5+ responsive web/mobile apps supporting loan processing and client onboarding across multiple European markets. Integrated real-time features using Firebase and Socket.io to enhance workflow tracking.

React Redux Firebase Socket.IO API Integration UI Components State Management Performance Optimization

Frontend Developer

Dovilo Poland

Sep 2014 - Sep 2016 (2 years)

Developed a user-friendly, mobile-responsive front-end with React.js for seamless identity management. Worked closely with UX designers to deliver pixel-perfect implementations. Optimized frontend performance and assisted in migrating legacy applications to modern React-based architectures.

React UX Design Responsive Design

Education

Degrees, certifications, and relevant coursework

WSEI University

Bachelor’s Degree, Computer Science

Completed a Bachelor's Degree in Computer Science, gaining foundational knowledge in programming, algorithms, and software development. Focused on core computer science principles and their practical applications.