Alexandru D.

👉 I work as a consultant/contractor/freelancer and help businesses develop their enterprise products. 💻 My programming language of choice is TypeScript/JavaScript (backend solutions using mainly Node.js) but I have also done PHP and frontend development when needed (using React and Vue). I am continuously looking for new challenges and self-improvement. 🚀 Do you need a web solution for your business? Drop me a message!

Job Posting Progressive Web App ✔️ The client, one of the world’s top 3 retailers of DIY and decoration goods, was wasting a great deal of effort and resources by hiring new people to deal with internal jobs that could be handled by the existing employees, due to the absence of a solution for promoting the internal career opportunities. • 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝘁𝗮𝗹𝗲𝗻𝘁 𝗿𝗲𝘁𝗲𝗻𝘁𝗶𝗼𝗻 𝗿𝗮𝘁𝗲𝘀 𝗯𝘆 𝟰𝟬% by assisting employees in relocating their jobs and/or changing their careers by designing a Progressive Web App for the company’s recruiters to promote internal career opportunities. • 𝗦𝗮𝘃𝗲𝗱 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 $𝟭𝗠 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗼𝗺𝗽𝗮𝗻𝘆’𝘀 𝗯𝘂𝗱𝗴𝗲𝘁 by removing 𝟭𝟬𝟬% 𝗼𝗳 𝘁𝗿𝗮𝗶𝗻𝗶𝗻𝗴 𝗰𝗼𝘀𝘁𝘀 by integrating the application with multiple third-party Applicant Tracking Systems that were already used by the company’s recruiters around the world. ⚙️ Skills: Node.js, Express.js, Vue.js, Vuex, Vuetify, HTML5, SCSS, Material-UI, MongoDB, REST API, Swagger, Jest, Cypress, Cucumber, Docker, Kubernetes, Vault, Scrum.

E-commerce platform ✔️ The client, one of the world's leading manufacturers and marketers of prestige cosmetic products, was facing roadblocks in their plan for global expansion due to their e-commerce platform being built on obsolete technologies that could not handle more traffic and thus generate poor performance and bad user experience. • 𝗗𝗿𝗮𝘀𝘁𝗶𝗰𝗮𝗹𝗹𝘆 𝗿𝗲𝗱𝘂𝗰𝗲𝗱 𝘁𝗵𝗲 𝗹𝗮𝘁𝗲𝗻𝗰𝘆 𝘁𝗼 𝗹𝗼𝘄𝗲𝗿 𝘁𝗵𝗮𝗻 𝟬.𝟱 𝘀𝗲𝗰𝗼𝗻𝗱𝘀 by designing a custom-tailored e-commerce platform using Node.js for lightweight and efficient microservices, Elasticsearch for performant searches, Redis for increased throughput, and GraphQL to optimize data transfers by eliminating over fetching. • 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗲𝗱 𝗮 𝗿𝗲𝗰𝗼𝗿𝗱 𝗼𝗳 𝗼𝘃𝗲𝗿 $𝟯𝗠 𝗶𝗻 𝘀𝗮𝗹𝗲𝘀 during a single holiday event by optimizing the platform resources to allow traffic of 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝟴𝟬𝟬.𝟬𝟬𝟬 𝗵𝗶𝘁𝘀 𝗽𝗲𝗿 𝗵𝗼𝘂𝗿 with blazing-fast loading pages, highly improved user experience, and very low abandon rates. ⚙️ Skills: Node.js, Typescript, Jest, Akamai, GraphQL, Express.js, Swagger, Microservices, AWS (SNS, SQS, Lambda Functions, ApiGateway, S3, ElastiCache, Elasticsearch, CloudWatch), Docker, Kubernetes, Vault, Sumologic, Bitbucket CI/CD, Jenkins, JMeter, SAFe.

Live Guide Chat ✔️ The client, a pioneer in developing market-leading software, was interested in helping other businesses boost their revenue by improving their quality of customer support services with minimum costs. They were missing the software solution to achieve this goal. • 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝘀𝗮𝗹𝗲𝘀 𝗯𝘆 𝘂𝗽 𝘁𝗼 𝟯𝟬% by designing a 𝗵𝗶𝗴𝗵𝗹𝘆 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝘁 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 with 24/7 availability by offering chatbot features and support from anywhere in the world only through the internet and without relying on phone lines. • 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝘁𝗵𝗲 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 𝗳𝗼𝗿 𝗮𝗹𝗹 𝗼𝗽𝗲𝗿𝗮𝘁𝗼𝗿𝘀 𝗯𝘆 𝟯𝟬𝟬% by designing an efficient UI with customizable predefined messages that allowed agents to easily triple the number of simultaneous customer interactions. ⚙️ Skills: Node.js, Express.js, React, Redux, SCSS, HTML5, BEM, MySQL, Redis, WebRTC, Websockets (Socket.io), RabbitMQ, Unit tests (Mocha+Chai), Protractor, Swagger, JWT, JSON:API, Docker, GitLab CI/CD, Jenkins, JMeter, Scrum.

Biofuel Online Store ✔️ The client, a local seller of bio-fuel in Denmark, was losing customers due to a missing online presence. They needed a software solution to increase their brand awareness, client base, and revenue. • 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝘀𝗮𝗹𝗲𝘀 𝗯𝘆 𝘂𝗽 𝘁𝗼 𝟲𝟬% by creating their online presence designing a custom-tailored solution using the Magento e-commerce platform, and investing in online ad campaigns that attracted customers from a wider market that goes beyond the one they used to sell on. ⚙️ Skills: JavaScript, PHP, Magento, Bootstrap, jQuery, Design Patterns, MySQL, HTML, CSS, Git, Asana.

Animal Food, Toys, and Accessories Online Store ✔️ The client, a small seller from Denmark, had a low customer conversion rate because of their online store being very slow and having an outdated design, making it difficult for customers to find what they need. • 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝗼𝗿𝗱𝗲𝗿𝘀 𝗯𝘆 𝟯𝟬% by migrating the old store to the Magento platform by designing a mobile-friendly UI with high-performance product searches using Solr. • 𝗦𝗮𝘃𝗲𝗱 𝘁𝗵𝗲 𝗰𝗼𝗺𝗽𝗮𝗻𝘆’𝘀 𝘁𝗶𝗺𝗲 𝗯𝘆 𝗮 𝘁𝗼𝘁𝗮𝗹 𝗼𝗳 𝟯 𝗱𝗮𝘆𝘀 and an 𝗮𝗱𝗱𝗶𝘁𝗶𝗼𝗻𝗮𝗹 𝟭𝟱 𝗺𝗶𝗻𝘂𝘁𝗲𝘀 for each new product added for sale by designing a highly efficient algorithm that can transfer all the products from the old store to the new platform in less than 5 seconds. ⚙️ Skills: JavaScript, PHP, Magento, Bootstrap, jQuery, Design Patterns, MySQL, HTML, CSS, Git, Asana, Solr.

Location: Romania

Vehicle Mileage Log Application ✔️ The client, a transport company from Denmark, had legal issues because of not properly reporting and managing the mileage logs after they increased the car fleet due to a missing solution that allows drivers to register logs electronically instead of using paper forms. • 𝗦𝗮𝘃𝗲𝗱 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝟭𝟬.𝟬𝟬𝟬 𝗗𝗞𝗞 𝗶𝗻 𝗳𝗶𝗻𝗲𝘀 by designing a custom-tailored solution, exposing it through a web interface, which the company may use to generate reports based on the mileage logs registered by drivers, using their mobile phones. ⚙️ Skills: JavaScript, PHP, Yii2 Framework, Bootstrap, jQuery, Design Patterns, MySQL, HTML, CSS, Git, Asana.

Location: Romania

Lottery Web App ✔️ The client, one of the largest tobacco companies in the world, was planning to promote their brands by organizing lotteries for close to one million participants. They were missing a solution to reliably pick the campaign winners. • 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗲𝗱 𝘁𝗵𝗲 𝘀𝗲𝗰𝘂𝗿𝗶𝘁𝘆 𝗮𝗻𝗱 𝗿𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝗼𝗳 𝘁𝗵𝗲 𝗰𝗮𝗺𝗽𝗮𝗶𝗴𝗻 𝗯𝘆 𝟭𝟬𝟬% by designing a custom-tailored application that automates the process of picking winners without human intervention. • 𝗜𝗺𝗽𝗿𝗼𝘃𝗲𝗱 𝘁𝗵𝗲 𝗱𝘂𝗿𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝗽𝗶𝗰𝗸𝗶𝗻𝗴 𝘄𝗶𝗻𝗻𝗲𝗿𝘀 from 30 minutes 𝘁𝗼 𝟭 𝘀𝗲𝗰𝗼𝗻𝗱 by designing a custom-tailored application to generate the documents required by the official lottery regulation authority. ⚙️ Skills: JavaScript, PHP, MySQL, HTML, CSS.