Software Developer in Alba Iulia, Romania

A fintech startup platform for merchant onboarding and payment processing with white labeling features and cross-selling and all-around reporting. It consists of a cloud-native application living in AWS with a microservices architecture and excellent scalability.

A merchant acquisition portal for online payment solutions integrating over five systems for a German bank. The mixed solution exposes a rendered interface and a partner API with a built-in white-label system.

An application for private jet availability and reservation, with cost estimations and multi-leg flights. I worked on the initial development prototypes after the first financing round, the patent application in the US, the business planning and market research, the team set up, and the development of the MVP.

A machine learning front-end for internal email categorization and a search app for legal advice in a large enterprise. The front-end connected to a machine learning model that sorted emails automatically and created the pipeline for re-training the model with internal user feedback.

A travel aggregator application for a local travel agency featuring hotel searches across 25,000 hotels from five separate regional feeds, with currency matching, hotel disambiguation, and connected services.

A support chat application deployable on a customer server written in Clojure developed as a proof of concept for the support system of a German bank.
This back-end application consists of ClojureScript with a reactive front-end, a cross-platform mobile app, and plugins for popular CMSs like WordPress and Joomla. The application included invoicing system, subscription management, and software updates. I started the development of the app with Erlang.

A hobby project with Clojure HTTP-kit WebSockets and local IndexedDB storage for experimentation on the early onsets of functional programming into the mainstream industry. The project consists of an Angular front-end with a reactive approach and WebSockets for synchronization.

A Python multiprocessing app that exposes a Sena ProBee sensor reading from a mesh network over a web interface via server-sent events. Utilized Zigbee protocol for device communication and experimentation with displaying a live stream of light and temperature data while storing it in the database.

Contributed to implementing one of my professor's encryption algorithms for file encryption based on equivalent keys and a "zipper" type splitting of a file using the key. Clojure implementation for experimenting with the language and reducers was a very new approach at the time.

A method to generate stronger encryption keys by flipping the bits of a given key after a threshold number. This was part of my professor's algorithm for encryption at the local University. The Clojure software experiment was done over the weekend.

The engine transforms a folder structure with Markdown files into a full site using Go and the Martini web framework for excellent site speed. This project was developed long before static file CMSs were even a thing to use on my blog.

A receipt reading and aggregation app with a Haskell back-end and a Swift mobile app. The application exposed a Servant API for uploading receipt photos, piped them through Google Vision API, and then used custom parser-combinators to parse the resulting text into the company and receipt-related information to expose as both itemized and aggregated data to the iOS mobile app.

A notifications dispatch for a Romanian Government initiative, written in Java. The program was volunteer-based. The hackathon MVP project was done with a team of eight, including a mobile client and presentation website. I participated in the back end using Spring Boot and CouchDB for database and topic queues.

Worked on the ETL process for the platform using Python with Django and extensions. I was in charge of correct calculations using NumPy transforms and reporting the data. I also extracted data from large multi-tab Excel files.

A crypto wallet concept for a German bank. Contributed to the compliance checks with tracking in the blockchain, transactions using Stellar, and the ecosystem developed around it, including merchant payment plugins, the payment gateway, and blockchain integration.

A concept for unifying the existing three portals of a German bank and providing SSO functionality for all three applications while keeping data management and aspect/brand consistency central across different technologies.

The concept for a European multi-acquirer portal for payments routed customers to different acquirers depending on configurable parameters from the platform. The portal would also allow redundant payment acquisition.

A payment plugin for the payment gateway of a Deutsche Payment A1m for all PHP-based shop systems, including the PHP SDK. I managed the maintenance and updating of the payment plugins, automated testing, and integration with the ordering system of the shops.

Developed Joomla extensions for spam registration checks against two separate RBLs and subscription management for downloadable products. JJAntispam was a Joomla system plugin hooked at user registration with configurable actions on RBL detection. JingleSubscriptions handled recurrent payments and cancellations of subscriptions for downloadable products. Contributed to the component for administrative purposes and the content plugin for insertion of the downloads area.

Developed the concept for a video-on-demand (VOD) service for a motor video company with distributed content delivery and signed video URLs over a custom CMS and custom Flowplayer modification. Utilized AWS S3 for storage, CloudFront distributions for edge location delivery, and Python for the back-end.

For a European bank, I developed the concept for an application that would allow merchants to get paid against their invoices through a third-party factoring service and for the integration and payment flows of the app.

For a German bank, we developed a concept for automating purchases of subscriptions for a sizeable digital customer. The bank's internal systems used a convoluted account setup process that needed ironing out into a solid automated process.

For a German-based bank, we developed the concept for a partner portal that included onboarding and account management, contracting and reporting for marketplace and referral payments that respected the bank's branding guidelines and united several disparate technologies.

For a large European bank based in Germany, we architected the software suite for a prepaid card, starting from web and mobile onboarding to expense reporting and categorization and prepaid card benefits.

An automated school bus concept for the local administration with a parent-children monitoring app, in-trip video feeds from the bus for the parents, teacher pick-up for the children, and automated ticket validation tracking for the transportation company.

A complex booking system for the school's language classes, including accommodation for the stay. I worked with the legacy codebase, migration from jQuery to Angular, Drupal back-end, and MySQL, and the credit card payments for the booking.

A shop system for Biokraft, a Romanian wellness provider. The shop system consisted of complete orders, automated products import, invoicing, payments, shipping, multilingual process, currency conversion, taxation, and social integration.

The client was a seat cover provider for large brands in Europe. According to Six Sigma indicators, it needed to be ITIL-based software for quality monitoring and management of incidents. The proposed solution consisted of a functional programming back-end and a NoSQL database.

A configuration and payment platform for a German insurance company and a customer portal featuring product management, support, and contract management. The software concept, technology overview, and development plan are based on UI flows.

A German real-estate developer building customized smart homes in a real-estate project asked for a software concept for an individual building configurator for a smart house, with plans, equipment choice, construction stage monitoring, and customer support.

A large conference website needed a chatbot widget for their website, accessible from both the web and as a web voice request. The chatbot would provide details about the conference, schedule, venue, and tickets.

The concept of a Dapp allows decentralized, secure email exchanges with identity and encryption ensured by Ethereum smart contracts between private participants in the scheme. Clients for all major email clients, including Outlook, Thunderbird, and Gmail extension for iOS and Android apps and the MetaMask-based browser app.

The goal of the project was to create an infrastructure for elderly people to easily keep in touch with their loved ones via chat, and video calls, enable file transfers, and integrate payments. Created the project to have Home Station iPad apps, mobile for iOS and Android, and web access.

I contributed to a project aimed to move a game economics design application from Adobe AIR to the web while keeping the interactions to allow for future monetization and user onboarding integrations.