martinopensky

Reduced AI processing costs by ~70% and automated financial document workflows, cutting manual effort from weeks to hours. Implemented CI/CD pipelines that cut deployment times from 90 minutes to 10 minutes and led a portal development team whose work supported at least 300% company revenue growth. Presented technical topics in board meetings with non-technical members to support informed decisions. Led security accreditation (CyberEssentials, CE+, ISO27001) and ensured infrastructure security in Azure.

Designed and built the Kwil DB Admin UI using React, Next.js, Redux Toolkit, Tailwind CSS, and Kwil JS SDK as the primary management interface for decentralised databases. Increased inbound user signups by 500–1000% by developing the Admin UI and Firebird tools, tracked through automated emails. Integrated Firebird into the Admin UI to enable users to deploy and manage Kwil Web3 DB nodes and clusters reducing the time to deploy Kwil DB Nodes by 65%. Contributed to core platform development, including enhancements to the Kwil JS SDK written in TypeScript, and delivered additional front-end projects supporting the Admin UI ecosystem. Developed prize-winning tools during the Arweave Community Hackathon, securing three awards totalling $2,500 and establishing a long-term collaboration with the Kwil team.

Founded and launched a decentralised community platform to empower creatives using blockchain technologies, including Solidity, Polygon, and OpenZeppelin. Led a team of three to deliver the MVP in two months, earning recognition as a top-three project at the Encode x LivePeer Hackathon, securing five prizes totalling over $6,000 for innovation and empowering creators. Built industry connections through hackathon participation that supported further product development and collaboration opportunities.

Led software architecture design for greenfield projects and modernised the interface with Vue.js and Laravel, improving onboarding and retention of key clients and contributing to 400% annual revenue growth. Founded Alph4’s in-house development team as the first internal engineer, collaborating with the CEO and external partners, and mentoring two graduates who advanced to senior roles. Established rigorous code review standards and formalised best practices through documentation, including a Git branching strategy and senior review requirements, reducing production bugs and improving code quality. Drove recruitment, onboarding, and best practices to strengthen team performance and scalability.

Developed a greenfield single-page application with a Laravel REST API back end and Angular UI, contributing across both front-end and back-end. Supported migration of legacy systems to AWS, ensuring reliability, zero downtime, and improved scalability. Guided the transition to a Docker development environment, mentoring team members, conducting code reviews, and maintaining strong code quality standards.

Independent software developer serving UK and international clients across education, healthcare, finance, and technology sectors. Delivered comprehensive solutions from long-term client partnerships to strategic technical leadership roles. Early Career (2010-2019): Built multilingual e-learning platforms, CRM integrations, and online education systems for multinational clients, maintaining repeat engagements through consistent delivery and technical excellence. Senior Full-Stack Development and Leadership (2019-Present): Progressed from Senior Frontend and Full-Stack engineering roles to Head of Engineering and CTO positions. Led development teams in implementing greenfield projects, establishing DevOps practices, and driving technical strategy across diverse technology stacks. Created Whisper Assistant (VS Code extension) achieving 3,500+ downloads, 100+ GitHub stars, and five-star marketplace rating. Specialising in full-stack development, cloud infrastructure, team leadership, and emerging technologies including blockchain and AI implementation.