Unlimit

Support Engineer

Reposted 7 Days Ago

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Belgrade, Grad Beograd, Centralna Srbija, SRB

In-Office

Junior

Payments • Financial Services

The Role

Support Engineer responsible for card processing systems, client communication, escalation of issues, system monitoring, log analysis, and automation of tasks.

Summary Generated by Built In

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)

Join Unlimit Team now!

Unlimit is an equal opportunity employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We welcome applications from all members of society irrespective of age, sex, disability, sexual orientation, race, religion or belief.

Skills Required

Experience in supporting card processing systems
Knowledge of Card Processing Operations
Hands-on experience with logging systems
Knowledge of HTTP protocol and API-browsers
PL/SQL - writing simple CRUD queries

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The Company

HQ: London

436 Employees

Year Founded: 2009

What We Do

From London to Singapore and from San Francisco to São Paulo, we help businesses enter new markets, explore new industries, and reach new milestones. We are driven by a deep-seated determination to be the best possible partner for our customers – giving you the support you need to capitalize on a world that’s changing at breakneck speed. Our mission is to provide innovators with a convenient and simple financial interface that enables payments to flow freely and invisibly across borders. We offer a wide range of services, including payment gateway, card acquiring, business accounts, card issuing, alternative payment methods, and more. That’s the reason why we are called Unlimit: we provide unlimited growth opportunities for our customers, freeing them from the payment constraints. Unlimit - Borderless Payments