What I build
- Go microservices integrating internal + vendor systems
- Internal web apps for operational workflows
- Automation that removes manual toil (Bash/Python)
Go · Systems Development · Systems Integration · Identity Systems
Turning complexity into reliability.
I build Go services and internal tooling for reliable systems.
📍 Location
Belgrade, Serbia
🎯 Focus
Go services, Systems Integration, IAM, Reliability
🧠 Core
Go, Okta, Linux, Docker, Bash/Python
About
I’m a systems developer specializing in Go-based services and systems integration. I build internal platforms that connect tools, automate workflows, and keep organizations running smoothly.
More details
I design and maintain Go microservices and internal web applications that integrate internal and third-party systems, with a focus on reliability, data consistency, and low-maintenance operation. My work spans systems integration, background services, and internal tooling that abstracts complexity away from users and teams.
I operate the infrastructure that supports these services, including Linux hosts, containerized deployments, automated TLS and certificate lifecycle management (ACME/autocert), and secure network segmentation with firewalls and VLANs in UniFi environments across global offices.
I also own identity and access integrations, designing and maintaining SSO, SCIM, and OIDC flows with Okta, and build automation in Bash, Python, and Jamf Pro to eliminate manual operational work across macOS fleets.
What I run
- Go services on Linux (DigitalOcean)
- Containerized deployments (Docker)
- TLS operations (ACME/autocert, renewals)
- Okta IAM (SSO, SCIM, OIDC)
- Networks: VPN, firewall, VLANs (UniFi) across global offices
How I work
- Secure-by-default, observable-by-design
- Clear ownership, explicit interfaces, predictable behavior
- Docs that stay alive (and short)
Skills
Go
Microservices
Systems integration
API integrations
Identity & Access Management
Okta (SSO/SCIM/OIDC)
Automation
Observability
Linux
Docker
TLS (ACME/autocert)
Python
Bash
Jamf Pro
UniFi
Strengths
- Go services that integrate real-world systems
- Failure-aware workflows: safe retries, idempotency, and clear error handling
- Identity lifecycle automation (Okta SSO/SCIM/OIDC)
What teams get
Calm operations, fewer repeated incidents, better data consistency, and tooling that people actually use.
Experience
Systems Developer · LearnUpon Ltd.
Oct 2025 — Present
- Designed and built Go services integrating internal systems and third-party vendors
- Built internal web apps in Go to streamline operational workflows and reduce manual toil
- Developed and operated data sync and comparison services using vendor APIs to ensure data integrity across systems
- Automated error-prone processes with Bash and Python to increase reliability and consistency
- Supported global office platform foundations (network, firewall, macOS environment) as part of overall reliability
Senior IT System Administrator · LearnUpon Ltd.
Mar 2023 — Oct 2025
- Owned daily operations for network, endpoints, and core cloud services across global offices
- Improved onboarding workflows to standardize access, reduce wait time, and reduce support load
- Maintained secure configuration and operational sanity for core services (IAM, endpoints, collaboration)
- Built automation and internal tooling to reduce repeated incidents and manual work
IT Administrator · LearnUpon Ltd.
Feb 2021 — Mar 2023
- Managed macOS fleet via Jamf Pro with Bash automation and hardened baselines
- Handled provisioning, onboarding, and troubleshooting across endpoints and office networks
- Improved documentation and operational workflows to keep support efficient and predictable
IT Support Engineer · Hyperoptic Ltd.
Jul 2020 — Feb 2021
- Investigated incidents with root-cause focus and consistent ticket hygiene
- Supported Windows/Azure AD/Intune operations and device lifecycle processes
- Improved processes and trained users to reduce repeat issues
Education
University of Belgrade
BA — English Linguistics and Literature
University of Belgrade
MA — English Literature
Languages
- English — Native/Bilingual
- Serbian — Native/Bilingual
Certifications & Volunteering
Jamf Certified Associate
Issued Jul 2021
macOS for IT Administrators
Issued Feb 2021
Volunteering
English Translator — The Ministry of Foreign Affairs of the Republic of Serbia · Dec 2014 — Dec 2015
TL;DR
The “just tell me” version.
What do you do?
I design and own Go-based services and internal platforms that integrate real-world systems, improve data consistency, and keep operations reliable as they scale.
What are you strongest at?
Go services and systems integration—especially identity (Okta SSO/SCIM/OIDC), automation, and internal tooling.
I’m strong at taking ambiguous operational problems and turning them into stable, maintainable systems.
What problems do you enjoy?
The messy ones: cross-system integrations, reliability issues, data consistency problems, and any process that makes people ask “why is this still manual?”
What’s your working style?
Practical and calm: secure-by-default systems, good observability, clear ownership, and documentation that actually gets read.
How should I reach you?
The easiest way is the contact form.
You can also email me directly at mijicm1@gmail.com.