Marinos Dakis Portfolio

Work Experience

Jun 2024 – Present

Engineered a scalable system using React JS, MySQL, Node JS, Python, C++, AG Grid, ApexCharts and AWS RDS, enhancing data table efficiency, resulting in an 80% increase in client retention.
Developed an automated reporting system integrated with broker APIs (MetaTrader 4/5, TradeLocker, cTrader, MatchTrader) and email automation with SendGrid, reducing report generation time by 95%.
Deployed financial report generators, trading account lookup, dashboards, and a flagging system (high-impact news, scalping, margin, IP/device history, hedged trades), boosting user engagement by 70%.
Automated CI/CD pipelines with AWS (ECR, ECS, S3, CodePipeline, CloudFront) and Docker, decreasing deployment time by 80% and accelerating release cycles.

Sep 2023 – Present

Built a full-stack application using Next.js, TypeScript, Tailwind CSS, and Redux, hosted on Vercel with Neon PostgreSQL and Redis, reducing page load times by 40%.
Integrated advanced features including Google AdSense, responsive design, API-driven architecture, and multilingual support via i18next, increasing site traffic by 75%.
Streamlined backend performance by optimizing database queries and caching strategies, improving data retrieval speeds by 50% and ensuring seamless performance during peak traffic.

Mar 2023 – May 2024

Architected an analytics dashboard with React JS, PHP, JavaScript, SQLite3, and SCSS, improving statement processing time by 80%.
Optimized a PDF generation process using FPDF, PHP, jQuery, reducing execution time by 74%.
Modernized a legacy system by migrating from PHP, JavaScript, CSS, and SQLite3 to Django, MySQL, and React JS, boosting system speed by 80%.
Led the development of document authentication features, including upload, viewing, validation, and download functionalities, cutting manual processing time by 40%.

Jan 2022 – Feb 2023

Maintained full-stack applications in an agile environment using JavaScript, TypeScript, React JS, jQuery, HTML5, CSS3, C#, ASP.NET MVC, and Sitecore, reducing backlog bugs by 70%.
Implemented feature flag management with LaunchDarkly for ordering and payment systems, enabling real-time updates for over 2.5 million users.
Awarded the Rising Star and Top Talent Appreciation awards for contributions on a 178-person project.

Aug 2020 - Jan 2021 · 6 mos

Boosted website traffic by 500% within two months by optimizing webpages and effectively utilizing WordPress plugins, such as Elementor and Yoast SEO.
Accelerated the project launch timeline by 10 weeks and significantly reduced outsourcing expenses by spearheading a migration to Bluehost.
Conducted training sessions for board members and an intern, covering website editing, security protocols, and maintenance procedures, ensuring a smooth offboarding process and sustained site management.
Received recognition from the organization's CEO, including the Certificate of Excellence, Certificate of Recognition, and Triple C Award due to excellent technical support and volunteering over 100 hours.