Backend Developer

Opz.io; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

OPZ in Singapore is seeking a Senior Back-end Developer to build high-performance software powering our trading services. You will create scalable APIs, services, and plugins, contributing to robust integration and product quality.

You will mentor peers through code reviews, tackle deployments and testing with TDD, and help us scale with microservices and Docker. The team values curiosity, collaboration, and a commitment to excellence in a fast-growing fintech environment.

Qualifications

• 3+ years of experience in back-end development.
• Knowledge of information security and data protection.
• Expertise in any modern programming languages.
• Excellent spoken and written English communication skills.
• Experience in Docker and familiarity with microservices and scalable systems; ability to produce high-quality, self-documenting code using TDD.

Responsibilities

• Build and test scalable, low-latency applications, APIs, and plugins for customers, internal teams, and third-party developers.
• Craft code that meets internal standards for style, maintainability, and best practices for high scalability.
• Teach, mentor, and grow team members through code reviews or pair programming.
• Troubleshoot applications during development and deployment.
• Build automated unit and integration tests and perform code reviews to improve code quality.
• Participate in deployment of new products and features by collaborating with other teams.
• Make codebases consistent and maintainable.

Skills

Back-end development

Security & data protection

Programming languages

English communication

TDD & code quality

Tools

Docker

Microservices

Relational DBs (MySQL/PostgreSQL)

Job description

Join our dynamic team at OPZ, where you'll be at the forefront of cryptocurrency innovation. With us, you'll have the opportunity to shape the future of digital finance while working in a diverse, collaborative environment. We value curiosity, creativity, and a commitment to excellence. If you're passionate about blockchain technology and ready to make an impact, we want to hear from you. Explore our open positions and start your journey with OPZ today.

Senior Back-end Developer

As a Senior Back-end Developer at OPZ, you’ll create high-performance software that will be the core of our trading services. Your clean code contributes to better integration and leads to engaging products. You will improve the scalability of our suite of tools, from APIs to web and mobile apps to plugins, helping us to meet the needs of our rapidly growing customer base.

• Build and test scalable, low-latency applications, APIs, and plugins for our customers, internal teams, and third-party developers.
• Craft code that meets our internal standards for style, maintainability, and best practices for high scalability.
• Teach, mentor, and grow your team members through code reviews or pair programming.
• Troubleshoot applications during development and deployment.
• Build automated unit and integration tests and perform code reviews to improve the code quality.
• Participate in the deployment of new products and features by collaborating with other teams.
• Make codebases consistent and maintainable.

Skills

• 3+ years of experience in back-end development
• Knowledge of information security and data protection
• Expertise in any modern programming languages
• Excellent spoken and written English communication skills
• Experience in Docker and familiarity with microservices and scalable systemsAbility to produce high-quality, self-documenting code by using test-driven development (TDD) techniques

Bonus Skills

• Extensive experience in Node.js or Perl
• Experience with asynchronous programming and scalable systems
• Experience with relational database design and/or open-source RDBMS systems such as MySQL and PostgreSQL

Soft Skills

• Background in Linux and other open-source platforms

Working with OPZ

• Be a part of the future of finance technology
• Flexible working hours and a team that is driven by strong values and a clear shared vision
• Working with the latest technologies and systems, which will challenge your skills and push your creative limits
• Great career development opportunities in a growing company