Unlimit

Implementation Specialist

Reposted 2 Days Ago

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Belgrade, Grad Beograd, Centralna Srbija, SRB

In-Office

Junior

Payments • Financial Services

The Role

As an Implementation Specialist, you will handle API integrations, manage digital wallets and terminals, troubleshoot technical issues, and ensure adherence to project SLAs and SOPs.

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.

We are seeking a technically-adept Implementation Specialist to join our fast-paced Fintech environment. You will be responsible for the technical configuration and integration of merchant terminals and wallets, ensuring flawless execution while maintaining strict adherence to established SLAs and SOPs. This role is designed for a "builder" who isn’t satisfied with manual work and has the drive to automate repetitive tasks using AI principles and modern tooling.

What you will do

Technical Integration & Configuration: Execute complex API integrations (REST) and manage the technical setup of digital wallets and physical terminals.
API & Endpoint Validation: Use tools like Postman to validate endpoints and ensure seamless data flow between merchants and our PSP systems.
Automation & AI Collaboration: Work in parallel with AI-driven workflows to identify manual bottlenecks. Review and analyse automation results to diagnose and fix broken scripts or API callback errors.
Certificate Management: Handle the lifecycle management of digital certificates to ensure secure and uninterrupted gateway configurations.
Technical Troubleshooting: Conduct deep-dive technical analysis into integration errors or configuration mismatches to provide rapid resolutions.
SLA & Quality Adherence: Meet all project deadlines, volume targets, and SLAs while following established SOPs.
Documentation: Maintain clear, concise project documentation in Confluence and track all active work streams via Jira.

Technical Requirements & Experience

Industry Experience: 1+ years in FinTech, specifically with PSP systems, Gateways, and Merchants.
Tooling: Proficiency in Salesforce, Jira, Confluence, and Postman.
Technical Skills: Solid understanding of REST API basics, API endpoints, and troubleshooting callbacks.
Hardware/Soft-pay: Direct experience with Terminal and Wallet configuration and API certificates.
Communication: Exceptional verbal and written English for technical coordination and stakeholder updates.
Mindset: Understanding of AI principles for process optimization and high adaptability to shifting priorities.

Soft Skills & Attributes

Initiative: A self-starter who actively looks for ways to improve system efficiency without being prompted.
Analytical Rigor: A natural problem-solver who enjoys deconstructing complex technical issues.
Deadline Driven: A disciplined approach to meeting timelines and adhering to strict operational standards.
Adaptability: Ability to thrive in a dynamic, high-growth environment where schedules and priorities shift rapidly.

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

1+ years in FinTech experience with PSP systems, gateways, and merchants.
Proficiency in Salesforce, Jira, Confluence, and Postman.
Solid understanding of REST API basics and troubleshooting callbacks.
Direct experience with terminal and wallet configuration and API certificates.
Exceptional verbal and written English communication skills.

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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