Jobs at Hub71 startups

Are you ready to join a vibrant community of tech startups that are shaping the future of innovation?

The Hub71 careers portal connects you with the leading startups that are transforming industries at the heart of Abu Dhabi's Global Tech Ecosystem. Explore a diverse range of opportunities with high-potential startups that are scaling globally from the UAE capital.

Background Icon
Search 
jobs
Explore 
companies
Join talent network
Talent
My job alerts

Software Engineer II (Ruby on Rails & Java)

BitOasis

BitOasis

Software Engineering
Amman, Jordan
Posted on Jun 25, 2025
Apply now

Company Description

BitOasis, a CoinDCX group company, is the leading regional cryptocurrency trading platform in the Middle East and North Africa. Headquartered in Dubai and established in 2016, BitOasis is a pioneer of the region’s virtual assets ecosystem, serving as the go-to platform for first-time cryptocurrency buyers and professional traders alike. The platform provides a secure and regulated opportunity for1 investors across 15 countries to buy, hold, and sell 70+ virtual assets. Since its launch, BitOasis has processed more than $6.6 billion in trading volume. BitOasis is licensed under Dubai’s Virtual Assets Regulatory Authority and the Central Bank of Bahrain.

Job Description

As a Software Engineer II, you will play a crucial role in designing, developing, and maintaining critical backend systems that power our crypto exchange. You will work within a dynamic, agile environment, collaborating with cross-functional teams including product managers, DevOps engineers, and QA to deliver robust and innovative solutions. Your dual expertise in Ruby on Rails and Java will be instrumental in bridging our existing systems and building out new functionalities.

Key Responsibilities:

  • Design, develop, test, and deploy high-quality, scalable, and secure applications using Ruby on Rails and Java.
  • Contribute to the full software development lifecycle, from concept and design to testing and deployment.
  • Work on both existing Ruby on Rails applications and new Java-based microservices, ensuring seamless integration and data flow.
  • Optimize application performance, scalability, and reliability for high-volume, low-latency financial transactions.
  • Collaborate with product owners to understand requirements and translate them into technical specifications.
  • Participate in code reviews, providing constructive feedback and ensuring adherence to coding standards and best practices.
  • Troubleshoot and resolve complex technical issues in production and development environments.
  • Contribute to architectural discussions and decisions, identifying opportunities for system improvements and modernization.
  • Mentor junior developers and share knowledge within the team.
  • Stay up-to-date with the latest industry trends, technologies, and security best practices in blockchain and fintech.

Qualifications

Required Skills and Experience:

  • 3-5+ years of professional software development experience.
  • Strong proficiency in Ruby on Rails:
  • In-depth understanding of the Rails framework, MVC architecture, ActiveRecord, and RESTful design.
  • Experience with Ruby programming language, its syntax, object-oriented principles, and common libraries.
  • Solid understanding of relational databases (e.g., PostgreSQL, MySQL) and SQL.
  • Strong proficiency in Java:
  • Excellent command of Core Java, including OOP principles, data structures, and algorithms.
  • Experience with Spring Framework (Spring Boot, Spring MVC, Spring Security, etc.).
  • Experience with building and consuming RESTful APIs.
  • Familiarity with Java build tools (Maven, Gradle).
  • Knowledge of Java testing frameworks (JUnit, Mockito).
  • Experience with distributed systems and microservices architecture.
  • Proficiency with version control systems (Git).
  • Understanding of Agile methodologies (Scrum, Kanban).
  • Strong problem-solving, analytical, and debugging skills.
  • Excellent communication and collaboration skills.

Nice to Have:

  • Experience working in the cryptocurrency, blockchain, or fintech industry.
  • Experience with background jobs (Sidekiq, Resque)
  • Familiarity with cloud platforms (AWS, Azure, GCP).
  • Experience with containerization (Docker, Kubernetes).
  • Knowledge of message queues (Kafka, RabbitMQ).
  • Understanding of security best practices in software development (e.g., OWASP Top 10).
  • Experience with front-end technologies (JavaScript, HTML, CSS, React/Vue/Angular) is a plus.

Education:

Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.

Apply now
See more open positions at BitOasis
Privacy policyCookie policy