Company Overview

We are seeking an experienced engineering professional to support the performance, reliability, and technical efficiency of payment gateway infrastructure within a modern fintech environment.

Our financial technology operations depend on secure and consistently available payment systems that connect merchants, acquiring institutions, payment processors, and digital financial platforms. Maintaining transaction speed, processing stability, and dependable payment routing is essential to delivering reliable financial services.

Role Summary

The Payment Gateway Performance Engineer will focus on optimizing payment processing infrastructure, investigating transaction failures, improving system performance, and supporting the technical reliability of payment gateway services.

The successful candidate will work across payment routing, transaction processing, system monitoring, and performance engineering to ensure that payment services operate efficiently under varying transaction volumes.

Key Responsibilities

• Monitor payment gateway performance, transaction throughput, response times, and processing reliability.

• Investigate failed payment requests, authorization declines, processing delays, and connectivity interruptions.

• Analyse transaction routing performance across acquiring banks and external payment processors.

• Identify infrastructure bottlenecks affecting payment authorization and transaction completion rates.

• Develop technical improvements that enhance gateway availability, scalability, and processing efficiency.

• Collaborate with backend developers to improve payment processing workflows and transaction handling.

• Implement monitoring procedures for payment service availability and transaction performance.

• Investigate API communication errors and integration-related payment failures.

• Support load testing, performance benchmarking, and production readiness assessments.

• Maintain technical documentation covering gateway configurations, system performance, and incident resolution.

• Work with security and infrastructure teams to maintain reliable and secure payment processing environments.

Requirements and Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related technical field.

• Professional experience in payment systems engineering, backend development, or financial technology infrastructure.

• Strong understanding of payment gateway architecture and electronic transaction processing.

• Experience with APIs, distributed systems, and service-to-service communication.

• Proficiency in programming languages such as Java, Python, Go, or JavaScript.

• Familiarity with databases, caching systems, and message queues.

• Knowledge of system observability, application monitoring, and performance testing.

• Understanding of payment authorization, settlement workflows, and transaction lifecycle management.

• Strong troubleshooting and analytical problem-solving skills.

Benefits

• Fully remote working opportunity within Estonia.

• Opportunity to work on high-performance payment infrastructure.

• Exposure to international payment processing technologies.

• Continuous technical development and engineering collaboration.

• Opportunity to influence payment system reliability and scalability.

Application Instructions

Applicants should submit an updated CV outlining their experience in payment infrastructure, gateway engineering, backend systems, or performance optimization. Relevant technical projects involving transaction processing and financial integrations should be included.

Are you interested in this position?

Apply by clicking on the “Apply Now” Button below!

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