Senior Backend Engineer – Payments

Jobtailor; Deutschland; Remote; EUR 90.000 - 130.000; Vollzeit

Zusammenfassung

Jobtailor is seeking a Java Engineer to architect and build scalable Java solutions powering a global social gaming platform reaching up to 150 million customers. You will write well-designed, testable, and scalable code and participate in the full development cycle from sprint planning through release cycles.

You will ensure smooth collaboration between development teams and product owners, build high-load systems, troubleshoot production issues with metrics and monitoring, and contribute to

Qualifikationen

• Extensive experience as a Java Engineer with strong Java Core knowledge (Java 8+)
• Proven expertise in multithreading and high-load systems
• Solid SQL knowledge and database optimization skills
• Strong experience with Docker (Docker Swarm) and containerization ecosystem
• Excellent troubleshooting skills with production monitoring tools, including metrics, alerts, monitoring, and profiling
• Good English communication skills in speaking and writing
• Experience with SPA and modern mobile and web technologies
• AI-driven engineering workflow comfort; willingness to use AI-assisted development as a primary productivity multiplier
• Bonus experience with ClickHouse, GCP, Kafka ecosystem, Elasticsearch, Ebean, Protobuf, InfluxDB/Grafana, Google Services integration, or wallet service maintenance
• Experience with Java 25, Spring Boot 4, Spring 7, Google Cloud Platform, Kubernetes, Kafka, AlloyDB for PostgreSQL, Spanner, Ebean ORM, Flyway, Redis, Quartz, WebSockets, Retool, Testcontainers, Locust, Jenkins/ArgoCD, ELK/Sentry/Grafana, Jira, Confluence, Slack, and Bitbucket

Aufgaben

• Architect and build scalable Java solutions powering a global social gaming platform
• Write well-designed, testable, and scalable code in a timely manner
• Participate in the full development cycle from sprint planning through release cycles
• Ensure smooth development and cooperation between development teams and product owners
• Build and maintain high-load systems handling massive scale
• Troubleshoot production issues using metrics, alerts, monitoring, and profiling
• Contribute to scaling and automation initiatives

Kenntnisse

Java 8+

Multithreading

High-Load Systems

SQL

Docker

Spring Boot

Kubernetes

Kafka

Elasticsearch

GCP

AI-Driven Engineering

Tools

Docker Swarm

Google Cloud Platform

Redis

Grafana

Jenkins

Bitbucket

Jira

Confluence

Testcontainers

WebSockets

Jobbeschreibung

• Architect and build scalable Java solutions powering a global social gaming platform reaching up to 150 million customers


• Write well-designed, testable, and scalable code in a timely manner


• Participate in the full development cycle from sprint planning through release cycles


• Ensure smooth development and cooperation between development teams and product owners


• Build and maintain high-load systems handling massive scale


• Troubleshoot production issues using metrics, alerts, monitoring, and profiling


• Contribute to scaling and automation initiatives

Requirements

• Extensive experience as a Java Engineer with strong Java Core knowledge (Java 8+)


• Proven expertise in multithreading and high-load systems


• Solid SQL knowledge and database optimization skills


• Strong experience with Docker (Docker Swarm) and containerization ecosystem


• Excellent troubleshooting skills with production monitoring tools, including metrics, alerts, monitoring, and profiling


• Good English communication skills in speaking and writing


• Experience with SPA and modern mobile and web technologies


• AI-driven engineering workflow comfort; willingness to use AI-assisted development as a primary productivity multiplier


• Bonus experience with ClickHouse, GCP, Kafka ecosystem, Elasticsearch, Ebean, Protobuf, InfluxDB/Grafana, Google Services integration, or wallet service maintenance


• Experience with Java 25, Spring Boot 4, Spring 7, Google Cloud Platform, Kubernetes, Kafka, AlloyDB for PostgreSQL, Spanner, Ebean ORM, Flyway, Redis, Quartz, WebSockets, Retool, Testcontainers, Locust, Jenkins/ArgoCD, ELK/Sentry/Grafana, Jira, Confluence, Slack, and Bitbucket

Core Competencies

Demonstrates extensive experience in Java Engineering, particularly with Java 8+, and possesses strong skills in multithreading, high-load systems, and database optimization. Proficient in utilizing modern development tools and methodologies to build scalable solutions and troubleshoot production issues effectively.

Highest-signal resume keywords

• Java Engineering


• Multithreading Expertise


• High-Load Systems


• Docker Containerization


• SQL Database Optimization

ATS Optimization Keywords

Hard Skills

• Java 8+


• Multithreading


• SQL


• Docker


• Spring Boot


• Kubernetes


• Kafka


• Elasticsearch


• GCP


• AI-Driven Engineering

Soft Skills

• Good English Communication

Industry Keywords

• Social Gaming Platform


• Scalable Solutions


• Production Monitoring


• Automation Initiatives


• Development Cycle

Tools & Technologies

• Docker Swarm


• Google Cloud Platform


• Redis


• Grafana


• Jenkins


• Bitbucket


• Jira


• Confluence


• Testcontainers


• WebSockets