Software Engineer

Besides its SaaS business, Circles operates three other distinct businesses:

• Life: A wholly-owned digital lifestyle telco brand based in Singapore, Circles.Life is powered by Circles’ SaaS platform and pioneering go-to-market strategies. It is the digital market leader in Singapore and has won numerous awards for marketing, customer service, and innovative product offerings beyond connectivity.
• Circles Aspire: A global provider of Communications Platform-as-a-Service (CPaaS) solutions. Its cloud-based Experience Cloud platform enables enterprises, service providers and developers to deliver and scale mobile, messaging, IoT, and connectivity services worldwide.
• Jetpac: Specializing in travel tech solutions, Jetpac provides seamless eSIM roaming for over 200 destinations and innovative travel lifestyle products, redefining connectivity for digital travelers. Jetpac was awarded Travel eSIM of the Year.
  
  

Circles is backed by renowned global investors, including Peak XV Partners (formerly Sequoia), Warburg Pincus, Founders Fund, and EDBI (the investment arm of the Singapore Economic Development Board), with a track record of backing industry challengers.

Job Description

Key Responsibilities:

• Contribute to the design and implementation of scalable, distributed systems that meet the demands of millions of consumers globally.
• Take ownership of critical services within microservices architecture, delivering features and projects while ensuring timelines, quality, and performance metrics are consistently met.
• Partner with Product Managers, Designers, and other stakeholders to deeply understand business requirements and ensure alignment between engineering and product outcomes.
• Define and promote engineering best practices for software development, CI/CD, and DevOps, ensuring systems are reliable, secure, and maintainable.
• Actively participate in post-production support processes, ensuring robust monitoring, incident response, and continuous improvement.
• Actively support other engineers by contributing to a culture of learning and innovation through technical guidance and mentorship.
  
  

Job Requirements

• Bachelor’s Computer Science, Software Engineering, or equivalent.
• 0-1 years of programming experience with a strong command of Java, including a proven ability to ship production-ready code. Exposure to Go (Golang) is a plus.
• Strong foundational understanding of object-oriented programming, data structures, and algorithms.
• Strong proficiency in SQL and relational databases, with a solid understanding of NoSQL databases.
• Employs a proactive, analytical approach to solving problems. Demonstrates proficient debugging abilities across the technology stack.
• Experience with backend technologies, including RESTful APIs, microservices, distributed systems, and asynchronous event-driven architectures.
• Development experience in building scalable and highly available products and services (millions of consumers) is a plus.
• Knowledge of backend technology stacks, including HTTP protocols, API design, Linux systems, and containerization technologies (e.g., Docker, Kubernetes).
• Familiarity with all SDLC activities, including analysis, design, development, testing, deployment, and support.
• Experience working in Agile delivery environments, with a focus on iterative, incremental development.
• Exposure to cloud platforms such as AWS/GCP and CI/CD practices is a plus
• Excellent verbal and written communication skills, with the ability to effectively convey technical concepts to technical and non-technical stakeholders.
  
  

What’s On Offer

We provide a great environment and platform for employees to build their career. In this role, you can expect:

• Unique opportunity to be a part of innovating the telecommunications industry.
• Once in a lifetime chance to help shape a brand from the ground up.
• Autonomy in the role and in managing your own portfolio.
• Exposure to the fast-paced world of high-tech start-ups.
• Attractive experience and compensation.
• Working with passionate, smart and driven colleagues in a vibrant environment.
• Get continuous mentoring to fast-track your career.

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