Principle Architect - Backend

About Us

Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly launch innovative digital brands or refresh existing ones, accelerating their transformation into techcos.

Today, Circles partners with leading telco operators across multiple countries and continents, including KDDI Corporation, Etisalat Group (e&), AT&T, and Telkomsel, creating blueprints for future telco and digital experiences enjoyed by millions of consumers globally.

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

• Circles.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.

• Gaining in-depth domain knowledge about the bounded contexts, customer experience and operator experience in CirclesX Platform.
• Architect, Design and implement solutions, in alignment with platform and DDD principles adopting organization's architectural standards and best practices.
• Provide technical leadership and guidance to the engineering teams working on the services and mentor engineers in adopting and implementing DDD concepts, best practices, and architectural standards.
• Work closely with the Product Management & Business teams to convert business requirements to tangible capabilities while providing a very hands-on technical leadership to the rest of the engineering team. 
• Bring in best practices and past learnings related to performance, reliability, and scalability to the designs and implementations.
• Collaborate with security and compliance teams to ensure that the designs and implementations are adhered to organizational security policies, industry standards, and any relevant regulations.
• Implement monitoring and observability strategies into the designs, ensuring that the engineering team can effectively identify and address issues in production.
• Maintain up-to-date documentation for the applications, including its design, implementation, APIs, and any relevant domain knowledge.
• Supervise the end-to-end delivery of the capabilities by leading the engineering team.
• Guide, coach and mentor engineers and foster a Platform culture of high performance.

• About 12+ years software industry experience.
• Degree in Computer Science, Software Engineering or equivalent. MSc in Computer Science / Software Engineering will be beneficial.
• Excellent communication skills and ability to lead a team of 6-10 senior engineers.
• In depth passion to get hands dirty with coding.
• In depth understanding in at least one modern backend development framework / language with a focus on Java, Spring Boot and/or Golang.
• In depth understanding in at least one modern frontend development framework with a focus on ReactJS. Experience in Vanilla JS, CSS and JQuery.
• In depth understanding working on SQL & NoSQL Databases such as MongoDB, MySQL, PostgreSQL, Redis etc. Hand-on experience in query optimizations and data modeling for scale and performance.
• In depth understanding of Software Design Patterns and Enterprise Integration Patterns.
• In depth understanding of application performance optimizations both in backend and frontend.
• In depth understanding of DevOps, Observability and Domain Driven Design.
• A very good understanding on containerization and K8s stack.
• Preferred experience in Elasticsearch and Kibana (ELK Stack) or similar.
• Preferred experience with messaging systems like RabbitMQ or similar.
• Deep dive, problem-solving, RCA and systematic thinking to reach to the cause of issues.
• Able to work independently and multi-task effectively.

Circles is committed to a diverse and inclusive workplace. We are an equal opportunity employer and do not discriminate on the basis of race, national origin, gender, disability or age.

To all recruitment agencies: Circles will only acknowledge resumes shared by recruitment agencies if selected in our preferred supplier partnership program.

Please do not forward resumes to our jobs alias, Circles, employees or any other company location. Circles will not be held accountable for any fees related to unsolicited resumes not uploaded via our ATS.