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Hi, I'm Piotr Bien, a Senior Software Engineer with 10 years of experience designing and building high-performance, secure web applications. I specialize in modern frontend frameworks, backend technologies, database design, and payment integration. I excel at building scalable systems with role-based access control, subscription management, and privacy-compliant features. I optimize performance, implement dynamic search and export functionality, and deliver user-centric solutions for complex business requirements.…Hi, I'm Piotr Bien, a Senior Software Engineer with 10 years of experience designing and building high-performance, secure web applications. I specialize in modern frontend frameworks, backend technologies, database design, and payment integration. I excel at building scalable systems with role-based access control, subscription management, and privacy-compliant features. I optimize performance, implement dynamic search and export functionality, and deliver user-centric solutions for complex business requirements.

Piotr Bien

Web Developer, Full Stack Developer, Front-End Developer, +1

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Hi, I'm Piotr Bien, a Senior Software Engineer with 10 years of experience designing and building high-performance, secure web applications. I specialize in modern frontend frameworks, backend technologies, database design, and payment integration. I excel at building scalable systems with role-based access control, subscription management, and privacy-compliant features. I optimize performance, implement dynamic search and export functionality, and deliver user-centric solutions for complex business requirements.…Hi, I'm Piotr Bien, a Senior Software Engineer with 10 years of experience designing and building high-performance, secure web applications. I specialize in modern frontend frameworks, backend technologies, database design, and payment integration. I excel at building scalable systems with role-based access control, subscription management, and privacy-compliant features. I optimize performance, implement dynamic search and export functionality, and deliver user-centric solutions for complex business requirements.

Available to hire

Hi, I’m Piotr Bien, a Senior Software Engineer with 10 years of experience designing and building high-performance, secure web applications. I specialize in modern frontend frameworks, backend technologies, database design, and payment integration.

I excel at building scalable systems with role-based access control, subscription management, and privacy-compliant features. I optimize performance, implement dynamic search and export functionality, and deliver user-centric solutions for complex business requirements.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Work Experience

Software Engineer at EMPIST

January 1, 2023 - January 1, 2023

Developed user management and subscription systems for clients using Angular, Node.js, and MySQL, improving account administration efficiency by 35%. Integrated payment gateways including Stripe and PayPal to manage recurring subscriptions, discounts, and billing automation. Implemented secure authentication and RBAC for privacy compliance. Built dynamic search and filtering for large datasets, increasing user search efficiency. Developed export functionality for client reports and dashboards. Collaborated with cross-functional teams to deliver scalable web applications and optimized frontend performance. Conducted code reviews, implemented CI/CD pipelines with GitLab and Jenkins, and maintained cloud infrastructure with AWS services to ensure high availability and scalability.

Senior Software Engineer at Devoteam

January 1, 2023 - November 13, 2025

Designed and developed a scalable web application for managing athlete profiles and secure coach evaluations using React, Node.js, and PostgreSQL, ensuring strict privacy for coach notes. Implemented role-based access control and secure authentication across players, coaches, and admin users, improving platform security compliance. Integrated Stripe and PayPal for tiered subscription plans, automated billing, and auto-renewal, increasing monetization efficiency. Developed dynamic search, filtering, and exportable player card features, reducing average query time and improving coach usability. Optimized frontend performance with code-splitting and performance techniques. Architected interconnected databases for players and coaches with secure data handling. Collaborated with UX/UI designers to create responsive interfaces for high school basketball recruiting. Implemented backend RESTful APIs with Node.js/Express and secure data handling middleware. Established automated unit and integr

Junior Software Developer at TRIARE

October 1, 2018 - October 1, 2018

Assisted in development of web applications using JavaScript, HTML, CSS, and PHP, contributing to frontend and backend improvements. Implemented basic authentication, access control, and CRUD operations for client databases. Worked on database design and maintenance with MySQL, improving query efficiency and data integrity. Collaborated on developing dynamic content filtering and search features. Participated in integrating payment solutions and billing automation for small client projects. Performed unit testing, debugging, and documentation to ensure stability and maintainability. Supported senior developers in optimizing page load times and frontend responsiveness.