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Senior Full Stack Developer with 11+ years of experience designing, developing, and delivering scalable digital solutions across finance, healthcare, eCommerce, insurance, and public sector. Extensive expertise in backend architecture, API development, distributed systems, and modern frontend technologies. Builds secure APIs and microservices, automates business processes, integrates third-party services, and develops user-centric applications to improve operational efficiency and customer experience. Strong proficiency across Node.js, NestJS, C#, .NET, React, Next.js, PHP, Laravel, and Microsoft Azure.…Senior Full Stack Developer with 11+ years of experience designing, developing, and delivering scalable digital solutions across finance, healthcare, eCommerce, insurance, and public sector. Extensive expertise in backend architecture, API development, distributed systems, and modern frontend technologies. Builds secure APIs and microservices, automates business processes, integrates third-party services, and develops user-centric applications to improve operational efficiency and customer experience. Strong proficiency across Node.js, NestJS, C#, .NET, React, Next.js, PHP, Laravel, and Microsoft Azure.

Stanisław Jeremicz

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

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Senior Full Stack Developer with 11+ years of experience designing, developing, and delivering scalable digital solutions across finance, healthcare, eCommerce, insurance, and public sector. Extensive expertise in backend architecture, API development, distributed systems, and modern frontend technologies. Builds secure APIs and microservices, automates business processes, integrates third-party services, and develops user-centric applications to improve operational efficiency and customer experience. Strong proficiency across Node.js, NestJS, C#, .NET, React, Next.js, PHP, Laravel, and Microsoft Azure.…Senior Full Stack Developer with 11+ years of experience designing, developing, and delivering scalable digital solutions across finance, healthcare, eCommerce, insurance, and public sector. Extensive expertise in backend architecture, API development, distributed systems, and modern frontend technologies. Builds secure APIs and microservices, automates business processes, integrates third-party services, and develops user-centric applications to improve operational efficiency and customer experience. Strong proficiency across Node.js, NestJS, C#, .NET, React, Next.js, PHP, Laravel, and Microsoft Azure.

Available to hire

Senior Full Stack Developer with 11+ years of experience designing, developing, and delivering scalable digital solutions across finance, healthcare, eCommerce, insurance, and public sector. Extensive expertise in backend architecture, API development, distributed systems, and modern frontend technologies.

Builds secure APIs and microservices, automates business processes, integrates third-party services, and develops user-centric applications to improve operational efficiency and customer experience. Strong proficiency across Node.js, NestJS, C#, .NET, React, Next.js, PHP, Laravel, and Microsoft Azure.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Beginner

Beginner

Beginner

Language

Polish

Advanced

English

Advanced

Work Experience

Senior Full Stack Developer at EXperience (Tetra/TSH) (The Software House) - TS H

January 1, 2020 - January 1, 2024

Built and maintained 70+ secure REST APIs and microservices integrated with banking systems, payment providers, and third-party fintech services. Developed cloud-native applications using .NET Core, Azure, and microservice architecture to improve reliability and maintainability. Created customer-facing and administrative web applications with React, Next.js, and TypeScript, improving user experience and operational efficiency. Implemented CI/CD pipelines and infrastructure automation using Azure, Docker, and Terraform to streamline deployments and standardize cloud environments. Developed backend services and data-processing applications using Python and Node.js. Built GraphQL and REST APIs for analytics workflows and enterprise data platforms, including AI/ML services to automate data processing and business insights. Optimized backend systems and data pipelines for performance and scalability; collaborated with product and engineering teams to deliver enterprise analytics solutions.

Developer (Digital Banking Solutions) at Warsaw / Earlier role in Poland

January 1, 2015 - December 31, 2019

Developed digital banking solutions using C#, .NET Core, Node.js, and Azure supporting mobile banking, payments, customer onboarding, and self-service features. Built backend services and data-processing pipelines for enterprise use cases. Worked on API endpoints and database integrations using PostgreSQL and MongoDB. Built GraphQL and REST APIs supporting data ingestion, reporting, and analytics workflows, and integrated AI/ML services for automated insights. Contributed to code reviews, sprint planning, and feature delivery in Agile teams, improving application performance and responsiveness across multiple client projects.