Senior Go-focused Software Developer and Owner with 10 years of
experience,
Linux enthusiast, technical architect, and mentor thriving in complex,
client-facing environments
Skills
Programming: Golang, Ruby, JavaScript,
TypeScript
Databases: PostgreSQL, MongoDB
DevOps & Cloud: Docker, Podman, Terraform, Ansible,
CI/CD, GitHub Actions, Linux, Bash
Monitoring & Observability: Prometheus,
Grafana
Testing & Methodologies: RSpec, Postman,
Test-Driven Development (TDD), Agile
Languages: English, Serbian, Hungarian
Experience
Senior Software Developer, Owner
Osman Emil Kft. – Szeged,
Hungary
December 2022 – Present
Selected projects:
Payments, EU (remote)
- Integrated payment service providers in emerging markets, expanding
market share and increasing revenue
Parking services, EU (remote)
- Built comprehensive test coverage reducing QA-reported regressions,
writing RSpec unit tests in TDD
- Resolved critical bugs improving delivery speed, reducing issue
turnaround time in Jira, collaborating with QAs
Staff management, Belgium (remote)
- Developed backend features for workforce scheduling, leading to
successful feature rollouts and client adoption, contributing to a
Rails-based API
Insurance industry, Spain (remote)
- Integrated insurance APIs, increasing provider coverage and
interoperability with microservices
- Deployed and maintained cloud infrastructure, improving system
reliability and uptime, working with GCP, Kubernetes, and a microservice
architecture
Technical Architect
MentorMate – Sofia, Bulgaria
(remote)
March 2022 – November 2022
- Architected hybrid Azure deployments, mapping on-premise systems,
working closely with DevOps Engineers
- Analyzed software stacks, maintenance, security, encryption,
finances, spending, and regulatory compliance
- Improved knowledge base of development team by conducting deep
interviews with key technical personnel
- Implemented functional and non-functional needs of clients on
greenfield projects
Senior Ruby Developer
MentorMate – Sofia, Bulgaria
(remote)
November 2020 – November 2022
- Developed core application features and custom client enhancements
in a multi-tenant system
- Led and mentored junior developers and bootcampers who successfully
integrated into development teams
Full-stack Web Developer
Sideqik – Atlanta, USA (remote)
November 2018 – March 2020
- Migrated frontend from Rails to Ember.js, improving developer
velocity with a documented component library
- Developed 1-on-1 and bulk messaging features that increased in-app
engagement and reduced reliance on external tools, with merge tag
support across Ember.js frontend and Rails backend
Full-stack Web Developer
aac.digital – Budapest, Hungary
(on-site)
July 2017 – October 2018
- Developed Rails apps for high-profile clients including METRO,
Telenor, Jamie Oliver, BRF S.A., Zsidai Group
- Learned Ember.js in a production environment, completed frontend
features and improved responsive interfaces
Projects
rssr
- Wrote a performant Golang open-source RSS reader for the
terminal
Homelab
- Architected Proxmox services, VMs, and containers with stable uptime
and fast deployments
- Implemented monitoring and observability with Prometheus and Grafana
to control resource usage
- Created ZFS backups on TrueNAS with snapshot replication, tested
recovery processes to reduce data loss
- Configured Linux, macOS, and Windows machines with access controls
and backup scripts, improving reliability