Vytautas Briauka

About

Senior AI-Powered Full-Stack Engineer with 9+ years of experience delivering production-grade, scalable web applications and AI-powered SaaS platforms. Expertise includes Next.js, TypeScript, Node.js, Supabase, and AI systems such as OpenAI, Claude, LangChain, and RAG-based architectures. Proven in system design, backend architecture, cloud scalability, and shipping revenue-generating MVPs and enterprise platforms for UK and global startups.

Experience

• Senior Full-stack Engineer · Norstella01-01-2023

  •Led a full monorepo migration (Nx + Next.js), consolidating multiple frontend applications into a unified architecture, significantly improving scalability and developer velocity •Built automated CMS migration tooling (Contentful → KeystoneJS), reducing manual migration effort by ~60% •Designed and implemented CI/CD pipelines to improve deployment reliability and eliminate redundant builds •Introduced Terraform-based infrastructure-as-code for scalable AWS environment management •Optimized AWS Fargate container infrastructure, improving system reliability and reducing operational downtime •Contributed to security hardening, performance improvements, and platform-wide scalability initiatives •Collaborated with cross-functional teams and provided technical leadership in architecture decisions

• Senior Full-Stack Developer (AI & SaaS) · Freelance01-01-2019 – 12-01-2022

  •Built and shipped 15+ production SaaS platforms and analytics dashboards used by international startup teams Remote •Developed AI-powered systems using OpenAI, Claude, LangChain, and vector databases for chat assistants, automation, and document intelligence •Architected high-performance full-stack systems using Next.js + Supabase + TypeScript with sub-300ms global response times •Improved backend performance by ~40% using Redis caching, database optimization and real-time WebSocket architectures •Implemented secure subscription systems (Stripe, Paddle, Lemon Squeezy) with production-grade webhook handling •Built and deployed serverless and cloud-native applications using AWS Lambda, Vercel and scalable CI/CD pipelines

• Full-Stack Developer · BrightLayer Technologies08-01-2016 – 12-01-2018

  •Built production web applications using React, Node.js, and PostgreSQL Brighton, United Kingdom •Developed backend automation workflows using AWS S3 and microservices architecture •Integrated Stripe payment systems for secure billing and subscriptions •Improved API performance through caching strategies and database query optimization •Delivered responsive frontend systems using React and Tailwind CSS

• Junior Web Developer · PixelWave Solutions06-01-2014 – 07-01-2016

  •Built custom Laravel applications and migrated legacy PHP systems to modern frameworks Middlesbrough, United Kingdom •Implemented secure authentication systems, payment gateways, and administrative dashboards •Applied HTML, CSS, JavaScript best practices to create cross-browser-compatible interfaces •Gained experience with Agile workflows, Git version control, and CI/CD pipelines

Education

• West Herts CollegeBachelor of Science - Computer Software Engineering, Computer Software Engineering (HNC in Computing with a focus on software development)

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