A recently acquired Sales Engagement platform with a micro-service architecture, written in a heterogenous mix of Golang, Rust, NodeJS and PHP, with a React UI and running on AWS.

I have been coordinating multiple parallel tracks including: replacing parts of the system with SaaS offerings, lifting and shifting some of the servers from their data center to AWS, fixing high priority defects, stabilizing and monitoring the product, etc.

A Spring Boot application with a Semantic UI React frontend for managing which colleagues are coming at the office in which days and in which room / place.

Currently, this product is being sold using a SaaS model, with the option of on-premise deployment on request. The SaaS version runs on AWS (CloudFront, Load Balancer, ECS, RDS).

A series of technical trainings primarily for entry level developers and colleagues that wanted to shift technologies. The target technologies are: Spring Boot, NodeJS, React, Angular and AWS.

I was responsible for preparing the training materials, presenting them, doing live demos, regularly checking in with the trainees and finally reviewing their work.

I built from scratch a couple of static websites for my wife: a personal travel blog and an interior design presentation site. They are hosted using serverless AWS services.

The content of the sites can be maintained by her using Netlify CMS.

Guided a small development team to enhance our customer feedback platform with SSO (Single Sign On) capabilities, by adding OAuth and SAML2 support.

I analyzed the existing code base, derived the architecture, designed the solution and organized the engineering work to ensure the project's success.

My main responsibility is to write detailed technical architecture specifications for a portfolio 200+ products. I write about three specs per week, each requiring up to a few hundred man-days to implement.

Most specs extensively use AWS (AppSync, Lambda, DynamoDB, Cognito, etc.) but sometimes we also tackle changes to legacy, monolithic, on-premise products.

I've performed extensive analysis on more than 500 AWS accounts to find cost reduction opportunities.

This involved writing a suite of Lambdas that periodically queried the target accounts for metrics and even executed some strategies (resource deletion, installing agents, etc.).

I was initially the architect and lead developer for building a cloud-based, multi-tenant SaaS platform for managing municipal services. In 2021, I served as an occasional consultant for the team.

We implemented a modular NodeJS core, communicating with several serverless micro-services and a monolithic Angular frontend application.

We've set up and consumed the AWS Cost and Usage reports to break down and scrutinize the cost structure for an AWS organization generating over 20M USD in yearly costs.

The insights that we found were then implemented as automation and pushed into QuickSight and Google Sheets to be consumed by top executives.

A YouTube series dedicated to teaching basic web application programming for students.

I am showcasing step-by-step how to build a typical Spring Boot application, backed by an embedded H2 database and fronted by a React user interface.

msg.CareerStart is the de-facto flagship internship programme of the company's local branch. It was primarily based on an idea of mine.

I was the main organizer, a technical mentor and an interviewer for the first edition. We mentored eight students that built a three tier application using ABAP, Spring Boot, and Angular. Afterward, most of these students were offered permanent positions at the company.

A micro-service architecture web application built for the Service oriented architecture master course.

It is a re-implementation of the older invoice generator it using Spring, Mithril, NodeJS and Docker.

A micro-service architecture web application built for the Service oriented architecture master course.

It consisted of several NodeJS micro-services, a Zuul API Gateway, a simplified OAuth 2.0 authorization server and a React user interface.

I've hosted the Software Design laboratory for a group of students at T.U. Cluj Napoca.

I prepared my own learning resources and recorded our sessions in which we explored various architectural styles, design patterns and technologies (mostly Spring and React).

Co-founder for a Romanian startup, KickIT, targeting the amateur soccer scene.

I was responsible for architecture, design, implementation and operations for the cloud-native solution, consisting of a Spring Boot backend, Lambdas and a React PWA deployed on AWS.

A small integration project on AWS for parsing XML exports from a legacy system. It consisted of a micro-service and a Lambda triggered by the S3 events.

I played the role of solution architect, designing and aligning the interfaces of the components, whilst the implementation itself was tackled by other developers.

Architect and lead developer for building a suite of reusable micro-services supporting business applications for a market-leading manufacturing company.

I've had a major role in guiding our customer through various architectural decisions, whilst also implementing the most technically challenging components.

This very website, which is meant to showcase my experience and projects.

Initially built with vanilla UI5, then re-built with custom controls using JSX, finally re-built again using React.

A small application for submitting feedback after or during the IT Conference on SAP Technologies Cluj.

Later on, I have also hosted a small training about cloud native development using this application as an example.

A small integration project on AWS for handling newsletter subscription and un-subscription actions to conform to GDPR.

I designed and fully implemented this solution directly on the customer's AWS account.

A simple story-like game for kindergarten children based on the "La Polul Nord" story by Marin Sorescu.

I built it for the Design of interactive software systems master course, the challenge being that the UI must be suitable for usage by four-year-olds.

SAP API Manager command line interface which can be used to deploy, create and remove API Proxies.

I built this CLI in my spare time to help the development process in SCP projects.

A project for our internal finance department to help them manage travel expense reports, calculate allowances and track business trips for our colleagues.

I acted as technical mentor and product owner for the fairly large team of developers assigned to this project.

An internal project for managing our entry-level job candidates. The project was built using Spring Boot and a PostgreSQL database, with React on the front-end.

My role was that of a technical mentor, organizer and product owner.

A continuation of the "Next Generation Underwriting" project, but focused more towards cloud enablement. The project consists of several smaller prototypes or showcases that aim to be deployed on a cloud platform (e.g. AWS).

I had mostly development-related tasks related to building a MEAN stack solution.

Lightweight open-source UI5 library which enables developers to build user interfaces which adapt at runtime to user roles.

The main goal of this library was to decouple the responsibilities of regular UI5 applications: role-based adaptation should be done declaratively and centrally for each app.

Babel plugin for transpiling inline JSX into UI5 render functions. It enables very easy custom control creation by simplifying the render process.

A simple open-source UI5 library for displaying graph data. I built it using a D3 force graph layout.

Project focused on aiding underwriters in their work through predictive analytics and pre-built business rules.

My role in this project was a combination of a solutions architect, development lead and full stack developer.

We were a relatively small team of five developers and we built a series of Java and UI5 MVPs over the span of a year.

A Java standalone application, with an embedded web server and embedded database. The application aims to help small business to store, manage and use their business data.

I have built this project as an exercise in implementing various mechanisms from scratch (user authentication, session management, scheduling, etc.) to enhance my skills.

A customer add-on to FS-RI (Financial Services - Reinsurance) for the General Reinsurance Company.

The add-on consisted of several UI5 applications which pulled various performance indicators calculated by ABAP CDS views and exposed through SAP Gateway OData services.

A shipment tracking application targeted at the transport insurance industry branch, consisting of two tracking device prototypes (Android, Arduino) which communicate with cloud services, which store the data, send out notifications and process the collected figures to expose analytical scenarios.

As this was my bachelor degree project, I've built it completely from scratch by myself.

A SCP, HANA, UI5 project for the human resources industry. The main goal of the project was to automatically parse and classify candidates based on their CVs.

We had a small development team in which I was the technical lead under the guidance of a senior software architect.

A remake of an older project, with MongoDB for storing the document templates, Apache Derby + JDBC for storing the various user, template and field configurations and an UI5 interface. The OpenOffice API was called directly from Java to generate the documents.

A small personal project which realized real-time communication between an ABAP based user interface (classic Dynpro), a UI5 interface hosted on the ABAP system and another UI5 interface hosted on SAP Cloud Platform.

An application which can be used to write imperative Java code by dragging and dropping functional blocks. The generated code can also be displayed inside the application, compiled and run. The front-end is done in UI5 and the back-end is built in Java.

Hospital appointment management cloud application realized with JPA and UI5. Real-time notifications were supported by using WebSocket communication between the clients and the cloud.

A UI-only application for an online, web-based ticketing system. It has three types of users: customers which may open support tickets, employees which must solve the tickets and managers which can oversee the performance of the employees and must solve any customer complaints.

A UI5 app which uses FabricJS to allow the user to draw by drag-and-dropping shapes and import external pictures. The user can also resize, move and change the colors of the shapes, use undo-redo functionality, save or load drawing files and also to export to PNG.

A small bank application on the cloud. Persistency was done with plain JDBC and the user interface with UI5. This application was later remade by using Hibernate, Spring and AngularJS.

Various customer development projects centered on the Life Reinsurance Module.

I was part of the product development team for a few months to get acquainted to the module and the underlying framework. Afterwards, I worked on customization projects for large enterprise customers.

A small customer addition to the Financial Services - Policy Management SAP module.

A small bookstore on the cloud. Is very similar to the bank applications, but the persistency was done in XML files (stored in a Cloud Document Store) and the user also has the possibility of generating reports in various formats (TXT, XML, CSV).

Several primary insurance small UI5 applications. All of them had SAP Gateway backend services, which exposed RFCs from standard modules. Most of the applications targeted the transport insurance segment and two of them targeted small goods primary insurance.

This project was built in my spare time for a land surveyor. Using it, one can keep track of all jobs and related court terms. It offers a calendar for seeing court dates and automatically reads data from the Ministry of Justice Web API and the National Agency for Cadaster website to update the data.

This is an application built on top of OpenOffice which can be used to manage invoices for a small company. It allows the user to define multiple profiles, it keeps track of customer data and generates OpenOffice invoices using a user-defined template. Receipts may also be generated from an existing invoice.

A application for land surveyors built on top of OpenOffice, which takes input values from the user and optionally an XML data file and generates documents using user specified templates. The values given by the user or read from the XML are either filled directly in the templates or are used to build tables and hide / show sections.

A mathematical functions graph plotting application entirely written in assembly. The user is able to enter the mathematical formula in the console and then the program plots the function's graph.

A program specifically designed to manage dedicated servers for Mount and Blade: Warband. It allowed the simultaneous management of several servers, checking the logs, creating reports, scheduling start, stop or restart actions.

A Mount and Blade: Warband mod which aimed to completely change the game concept without forcing players to download anything. For this project, I was the sole developer. It consisted of modified Python scripts which were run by the server, PHP sites, C / C++ log parsers.