Software Engineer, Software Developer and Cyber Security Specialist

6/2022 – 9/2022

Description:

Enhance, optimize, and accelerate the server backend infrastructure, which is built on Debian and Docker, by refining SQL query structures for increased execution speed. Implement advanced caching strategies on the frontend to reduce load times. Upgrade the Golang backend com-ponents to expedite the transformation and processing of images, ensur-ing more efficient and rapid performance.

Products / skills:
▪ PostgreSQL
▪ JavaScript / TypeScript
▪ Jest
▪ Docker

Details:
▪ Planning a database structure
▪ Develop a backend database adapter
▪ Develop test cases in JavaScript with Jest
▪ Speedup connections to an external picture convert process

Docker, JavaScript, PostgreSQL, TypeScript

6/2022 – 7/2022

Description:
Transform the web application into a containerized environment, encap-sulating the backend system within containers to enhance scalability, portability, and efficiency. This process involves creating container images for the web app's services, ensuring seamless deployment and orchestra-tion across various computing environments.

Products / skills:
▪ PostgreSQL
▪ Nginx
▪ Docker
▪ Debian

Details:
▪ Set up a server with Docker
▪ Write Docker files for backend, gateways, webapps
▪ Write environment variable flies for multiple environment
▪ Develop necessary changes on the backend to containerize it

Debian, Docker, NginX, PostgreSQL

8/2021 – 9/2021

Description:
Planning and set up a local network with VPN access.

Products / skills:
▪ Debian
▪ WireGuard
▪ Hetzner
▪ Docker
▪ Grafana
▪ Prometheus

Details:
▪ Planning the network architecture
▪ Set up the local network
▪ Set up the VPN network
▪ Ensuring redundancy and failover strategies
▪ Deploying Network monitoring and logging
▪ Writing technical documentation

Debian, Docker

4/2020 – 7/2021

Description:
The task was to engineer an OAUTH2 authentication service that inte-grates with Google, Apple, and Microsoft accounts, allowing them to serve as login providers for a Software as a Service (SaaS) product, struc-tured as an independent microservice. The project scope also included the creation of APIs designed for GDPR compliance, enabling the ex-traction of personal data from both primary and backup databases, en-capsulated as a separate microservice. Additionally, a graphical inter-face for the data extraction workflow was developed using Svelte. The final phase of the project focused on the advancement of the business platform by developing services aimed at fostering innovation and ideation.

Products / skills:
▪ Golang
▪ Svelte
▪ Docker
▪ PostgreSQL
▪ Apple OAuth service
▪ Google OAuth service
▪ Microsoft Azure / Graph API
▪ GitLab
▪ Nginx

Details:
▪ Development of several microservices in the backend for a web plat-form with Golang and SQL
▪ Development of a new administrative Web-App with TypeScript, Svelte, HTML5, (S)CSS
▪ Development of integration and component tests with Jest in JavaScript and native tests with Golang
▪ Planning and designing the architecture for a PostgreSQL database
▪ Planning and implementing VPN Networks for several in-house DevOps Tools (Jenkins, GitLab, ...)
▪ Build and deploy container for web backend services

Docker, Git, Go (GoLang), Microsoft Azure, NginX, PostgreSQL

2/2020 – 4/2020

Description:
The project entailed developing a Postgres adapter using Golang and Node.js to facilitate the transition from a NoSQL (Tarantool) database to an SQL (Postgres) database. This included the comprehensive transfer of data from NoSQL buckets to a newly established SQL schema.

Products skills:
▪ Golang
▪ PostgreSQL
▪ UML
▪ Tarantool
▪ Nodejs
▪ JavaScript / TypeScript

Details:
▪
▪ Planning a relational database structure and architecture for Post-greSQL
▪ Rewrite from NoSQL scripts to SQL
▪ Develop a backend database adapter in Golang and Nodejs
▪ Develop test cases in Golang and Nodejs

Go (GoLang), JavaScript, Node.js, PostgreSQL, TypeScript, UML