Java Engineer - Contractor

CoinMarketCap; Hong Kong; On-site; HKD 900,000 - 1,300,000; Full time

Job summary

CoinMarketCap is seeking an experienced senior Java engineer in Hong Kong to design, build, and maintain scalable applications. You will optimize performance and ensure service stability while translating business requirements into robust Java solutions.

The role requires strong core Java expertise, Spring frameworks, and experience with microservices, REST, and middleware. Fluency in English is expected, and familiarity with Redis/MongoDB/MySQL/Kafka/Kubernetes is advantageous.

Qualifications

• 8+ years of online troubleshooting experience with full lifecycle of project development for Java applications from similar industry.
• Understand the underlying principles of commonly used middleware.
• Familiar with Redis/MongoDB/MySQL/Kafka/xxl-job/K8s/SpringBoot/localCache/Prometheus.
• Strong skills in core Java, server-side Java technologies, and Spring frameworks.
• Extensive experience in software design, architecture, development integration.
• Solid knowledge of event processing models, multi-threading, enterprise integration pattern, Web Service and REST.
• Experience in Reactor and Microservice would be an added value.
• Basic or fluent English level.

Responsibilities

• Independently investigate and design relatively complex systems
• Optimize system performance and ensure the stability of system services
• Translate business requirements and use cases into functional applications
• Design, build, and maintain efficient, reusable, and reliable Java code
• Review, test, and verify code for adherence to quality and security standards
• Ensure the best possible performance, quality, and responsiveness of the applications
• Identify bottlenecks and bugs, and devise solutions to these problems
• Help maintain code quality and organization

Skills

Core Java

Spring Framework

REST

Multi-threading

Middleware

Redis

MongoDB

MySQL

Kafka

Kubernetes

Prometheus

Reactor

Microservices

Tools

Redis

MongoDB

MySQL

Kafka

Kubernetes

Prometheus

SpringBoot

Job description

POWERING CRYPTO WITH DATA

CoinMarketCap is the world’s most trusted and accurate source of data for cryptocurrencies. Used by millions of individuals, organizations, and exchanges, CoinMarketCap brings the most up-to-date market capitalizations, pricing, and cryptocurrency information to our users.

Company Description

Pulling data from multiple exchanges and combining our robust research allows us to provide the most realistic representation of each cryptocurrency. As we grow, we will continue to provide access to our data wherever, whenever, and however is most helpful to our users.

CREATING AN OPEN WORLD

Our mission is to be the world’s authority on cryptocurrency data. We believe in an open and decentralized world, where we play a pivotal role in powering decisions and insights to drive greater understanding and adoption of cryptocurrencies. We want to achieve this mission with people who truly believe in the value and potential of empowering individuals.

Job Description

• Independently investigate and design relatively complex systems
• Optimize system performance and ensure the stability of system services
• Translate business requirements and use cases into functional applications
• Design, build, and maintain efficient, reusable, and reliable Java code
• Review, test, and verify code for adherence to quality and security standards
• Ensure the best possible performance, quality, and responsiveness of the applications
• Identify bottlenecks and bugs, and devise solutions to these problems
• Help maintain code quality and organization

Qualifications

• 8+ years of online troubleshooting experience with full lifecycle of project development for Java applications from similar industry
• Understand the underlying principles of commonly used middleware
• Familiar with Redis/MongoDB/MySQL/Kafka/xxl-job/K8s/SpringBoot/localCache/Prometheus
• Strong skills in core Java, server-side Java technologies, and Spring frameworks
• Extensive experience in software design, architecture, development integration
• Solid knowledge of event processing models, multi-threading, enterprise integration pattern, Web Service and REST
• Experience in Reactor and Microservice would be an added value
• Basic or fluent English level