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Senior Java Developer – Acquiring and Payments

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Develop, maintain and enhance high-performance microservices.
Work on resolving Level 2 and Level 3 incidents, performing complex diagnostics involving code, cloud infrastructure and acquiring business rules.
Ensure the integrity of integrations between Payware platforms and the company's other systems.
Propose continuous architectural improvements to reduce incidents, increase scalability and optimize performance in AWS and on-premises environments.
Document technical flows, integrations and business rules, promoting knowledge sharing across the team.
Provide technical support and mentorship to less experienced colleagues through coaching and knowledge sharing.

Requirements

Strong experience in Java development (version 11 or higher).
Proficiency in the Spring ecosystem (Spring Boot, Spring Cloud and Spring Data).
Experience with microservices architecture.
Solid knowledge of acquiring and payments, including:
Transactional flow (authorization, capture and reversal);
ISO 8583 messaging.
Hands-on experience with AWS services, including:
EC2;
Lambda;
SQS;
RDS;
CloudWatch.
Advanced knowledge of SQL databases, preferably PostgreSQL and/or Oracle.
Experience with Payware Acquirer.
Knowledge of Payware Issuer.
Understanding of information security and compliance with PCI-DSS.
Experience with monitoring and observability tools (APM), such as New Relic, Datadog or Dynatrace.
Experience working with agile methodologies, such as Scrum and Kanban.

Core Competencies

Demonstrates strong expertise in Java Development and the Spring Ecosystem, with a focus on Microservices Architecture and AWS Services. Capable of providing technical mentorship while ensuring compliance with information security standards such as PCI-DSS.

Highest-signal resume keywords

Java Development (Version 11 or Higher)
Spring Ecosystem (Spring Boot, Spring Cloud, Spring Data)
Microservices Architecture
AWS Services (EC2, Lambda, SQS, RDS, CloudWatch)
Information Security Compliance (PCI-DSS)

ATS Optimization Keywords

Hard Skills

Java Development
Spring Boot
Spring Cloud
Spring Data
Microservices Architecture
SQL Databases (PostgreSQL, Oracle)
Payware Acquirer
Payware Issuer
ISO 8583 Messaging
Agile Methodologies (Scrum, Kanban)

Soft Skills

Technical Support
Mentorship
Knowledge Sharing
Problem Solving
Collaboration

Industry Keywords

Acquiring and Payments
Transactional Flow
Authorization
Capture
Reversal

Tools & Technologies

AWS EC2
AWS Lambda
AWS SQS
AWS RDS
AWS CloudWatch
New Relic
Datadog
Dynatrace