Support Engineer
unlimit· Technical Support
About this role
About Unlimit
Unlimit is a global fintech ecosystem built to eliminate financial borders holding businesses back. The company provides the extensive infrastructure needed to scale globally, integrating payment processing, multi-currency business accounts, BaaS and crypto gateways into a single, intelligent platform.
Across 17 offices globally, Unlimit bridges hyper-local expertise with a high-capacity financial network, giving companies the agility to expand across regions with operational confidence and speed. Driving the evolution of payments, Unlimit is transforming its infrastructure from human-operated fintech into AI-native financial infrastructure — where APIs are consumed by machines, integrations are negotiated by agents, and systems evolve continuously through intelligent automation. Our next users are not only humans. They are AI agents acting on behalf of humans and businesses.
Unlimit serves more than the needs of businesses today; we are building the nervous system for a borderless global economy.
Requirements:
Experience in supporting card processing systems at least 1 year or 2 years of any payment processing systems
Knowledge of the principles of Card Processing Operations of the authorization and clearing part
Hands-on experience with any logging system (Splunk, CloudWatch, DataDog, etc.)
Knowledge of the HTTP protocol of the application layer, experience with the API-browsers (Postman, Swagger, etc.)
PL/SQL - writing simple CRUD queries
Nice to have:
Experience with Core Banking System, (experience with Temenos would be your benifit)
Experience with KYC/KYB (like SumSub, etc.)
Experience with SmartVista
Any experience with Banking as a Service products
Hands-on with SalesForce
Responsibilities:
Communication with client's support representatives in Slack chats
Escalation of tickets to Engineers of the Card Processing Team
Online monitoring of the in-house card-processing system
Analysis of system events - system logs, etc.
Reception and processing of reverse tasks from internal teams
Performing and automation of routine procedures (including AI automation tools): file exchange, running of system scheduled tasks
Setting up emulators of payment systems (setting up test/pre-prod environments)
Frequently Asked Questions
Is the salary disclosed for the Support Engineer position at unlimit?
The salary for this Support Engineer role at unlimit is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Support Engineer position at unlimit located?
This Support Engineer role at unlimit is based in Belgrade. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Support Engineer role at unlimit full-time or part-time?
This is listed as a Full Time position. It is posted as a Support Engineer role in the Technical Support department at unlimit.
Which team or department does the Support Engineer at unlimit belong to?
This Support Engineer position is part of the Technical Support department at unlimit. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Support Engineer position at unlimit?
Click the "Apply Now" button on this page. You will be redirected to unlimit's official application portal hosted on lever where you can submit your application directly.
When was the Support Engineer job at unlimit posted?
This Support Engineer position at unlimit was posted on May 12, 2026. Apply as soon as possible — early applications are often reviewed first.
Support Engineer
unlimit
You'll be redirected to unlimit's official application page on Lever.