I'm a software engineer with over 8 years of experience building modern, high-performance applications. I specialize in JavaScript and TypeScript, crafting responsive frontends with MERN, Next.js, Vue/Nuxt, Angular, and React Native, and styling with Tailwind CSS, MUI, and Bootstrap. I design scalable back-ends with Node.js and Nest.js, implementing secure RESTful and GraphQL APIs that connect to PostgreSQL, MongoDB, MySQL, Supabase, and Firebase. I deploy using Docker and CI/CD on AWS, GCP, and Azure, and I work with headless CMS platforms like Strapi and Payload CMS to enable flexible content modeling and real-time delivery.

Denvils Janisevs

I'm a software engineer with over 8 years of experience building modern, high-performance applications. I specialize in JavaScript and TypeScript, crafting responsive frontends with MERN, Next.js, Vue/Nuxt, Angular, and React Native, and styling with Tailwind CSS, MUI, and Bootstrap. I design scalable back-ends with Node.js and Nest.js, implementing secure RESTful and GraphQL APIs that connect to PostgreSQL, MongoDB, MySQL, Supabase, and Firebase. I deploy using Docker and CI/CD on AWS, GCP, and Azure, and I work with headless CMS platforms like Strapi and Payload CMS to enable flexible content modeling and real-time delivery.

Available to hire

I’m a software engineer with over 8 years of experience building modern, high-performance applications. I specialize in JavaScript and TypeScript, crafting responsive frontends with MERN, Next.js, Vue/Nuxt, Angular, and React Native, and styling with Tailwind CSS, MUI, and Bootstrap.

I design scalable back-ends with Node.js and Nest.js, implementing secure RESTful and GraphQL APIs that connect to PostgreSQL, MongoDB, MySQL, Supabase, and Firebase. I deploy using Docker and CI/CD on AWS, GCP, and Azure, and I work with headless CMS platforms like Strapi and Payload CMS to enable flexible content modeling and real-time delivery.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Work Experience

Full-Stack Developer at Marino Software
January 1, 2024 - September 1, 2025
Architected and developed high-performance frontend applications using Next.js with Tailwind CSS for pix el-perfect, responsive designs; led backend development with Nest.js and Node.js in TypeScript; built scalable microservices and secure RESTful APIs connected to PostgreSQL; deployed via CI/CD pipelines on AWS EC2 and S3.
Backend Developer at Votiko US
June 1, 2022 - December 1, 2023
Engineered modular TypeScript backends with Nest.js; designed microservices with decorators, providers, and modules; implemented authentication and authorization using JWT, Passport.js, and RBAC; integrated OAuth2 providers; designed GraphQL schemas with Nest.js GraphQL and connected to PostgreSQL via TypeORM.
Front End Developer at Krusche
September 1, 2020 - May 1, 2022
Developed dynamic frontend solutions using Angular and React, styled with MUI and Tailwind CSS; implemented NgRx for state management; built pixel-perfect, accessible UIs with WCAG compliance; integrated Strapi as a headless CMS for configurable dashboards.
Senior JavaScript Developer at MVST
May 1, 2019 - August 1, 2020
Built performant frontends with Nuxt.js and React; leveraged Composition API, Pinia, and Redux Toolkit to manage complex global state, optimistic updates, and real-time data flows.
Junior Web Developer at Black Gate
June 1, 2018 - April 1, 2019
Contributed to frontend development using React and Angular, styled with Bootstrap; supported Strapi CMS configurations for content-driven components; participated in DevOps tasks, including Docker setup and CI/CD on AWS.

Education

Bachelor of Computer Science at University College Dublin
September 1, 2012 - December 1, 2016
Bachelor of Computer Science at University College Dublin
September 1, 2012 - December 1, 2016

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Government, Financial Services, Manufacturing, Media & Entertainment, Non-Profit Organization