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BGTS

Back End Developer

BGTS
Turkey · Contract · Mid-Senior

BGTS International Business Unit is looking for Backend Developers to join our team and work on core banking and credit card systems. This is a great opportunity to build scalable, high-performance solutions in the financial domain.


📌 Project Timeline


4 - 8 months


📌 What we’re looking for


Experience: 2+ years in the Credit Card domain

Bank Core System knowledge

Strong Java (17/21) expertise with Spring Boot 3.x & Spring Framework


Experience with:


APIs: REST, gRPC, Spring Cloud Gateway

Databases: PostgreSQL, Oracle, MongoDB, Redis

Messaging: Apache Kafka, Saga patterns, Outbox/Inbox

Transactions: ACID, distributed transactions, query optimization

Security: Spring Security, mTLS, JWT, PCI-DSS best practices

Monitoring & Logging: OpenTelemetry, Prometheus, Grafana, ELK

Testing & DevOps: JUnit 5, Testcontainers, k6/Gatling, CI/CD, Docker, Kubernetes

Key Skills

Ranked by relevance

spring boot postgresql prometheus grafana docker devops oracle kafka cloud java grpc cicd dss
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Posted
Aug 27, 2025
Type
Contract
Level
Mid-Senior
Location
Türkiye
Company
BGTS

Industries

Banking Financial Services

Categories

Finance

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