E2E BSS Principal Solution Architect

About this role

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.

Role - E2E BSS Solution Architect / Field CTO / Principal Field Architect / Forward Deployment Principal Architect / Principal Enterprise Architect

Standard Title - Principal Architect   Roles & Responsibilities: • Act as the trusted technical advisor to customer CIOs, CTOs, Enterprise Architects and Senior leadership, driving technology strategy and enterprise architecture for large-scale Telecom BSS transformation programs.

• Lead end-to-end business, solution and enterprise architecture across Telecom Business Support Systems (BSS), including CRM, Billing, Real-Time Charging, Order Management, Enterprise Product Catalogue, Digital Channels, OSS/BSS and enterprise integrations.

• Own the overall technical vision, target architecture, transformation roadmap and implementation strategy from solution design through production launch and operational excellence.

• Drive customer technology strategy, architecture governance and roadmap planning aligned with business objectives, operational transformation and long-term platform evolution.

• Lead technical discovery workshops, architecture reviews, design sessions and executive steering committees to drive key business and technology decisions.

• Provide architectural leadership across multiple technical workstreams, ensuring alignment between product engineering, delivery, operations and customer IT organizations.

• Own solution architecture for functional and non-functional requirements, including scalability, availability, resiliency, security, observability, performance and disaster recovery.

• Define architecture principles, technology standards, integration patterns and application roadmaps to ensure scalable and future-ready platforms.

• Lead end-to-end integration architecture across CRM, Billing, Charging, Product Catalogue, Order Management, Provisioning, Digital Channels, OSS, Enterprise Applications and third-party ecosystems.

• Drive cloud-native architecture, API-first design, event-driven architecture, microservices and platform modernization initiatives.

• Own technical governance throughout the delivery lifecycle, ensuring architecture compliance, quality assurance and successful execution across all workstreams.

• Lead production readiness, go-live planning, cutover strategy, hypercare and transition to operations while ensuring service stability and business continuity.

• Partner closely with Product Management, Engineering, Delivery, Infrastructure, Cloud, Security, QA, SRE and Operations teams to accelerate customer deployments and resolve complex technical challenges.

• Act as the primary technical escalation point for customer-facing issues, delivery risks and cross-functional technical decisions.

• Build strong executive relationships with customer stakeholders and act as the single technical point of contact for architecture, technology and delivery governance.

• Support business development, pre-sales and account growth by defining transformation strategies, technology roadmaps and solution proposals for new and existing customers.

• Drive continuous platform optimization, operational excellence and technology innovation throughout the customer lifecycle from strategy through launch and operate.

• Mentor solution architects, engineering teams and technical leaders while promoting architecture best practices and engineering excellence.

Preferred Qualifications & Experience Requirements: • 15+ years of experience in Telecom BSS/OSS with deep expertise in CRM, Real-Time Charging, Billing, Enterprise Product Catalogue, Order Management, Provisioning, Fulfilment, Digital Channels and Telecom System Integration.

• Proven experience leading enterprise architecture, technology strategy and delivery for large-scale Telecom BSS transformation, modernization and greenfield deployment programs.

• Extensive experience serving as a customer-facing technology leader, trusted advisor or enterprise architect engaging directly with CIO, CTO and executive stakeholders.

• Strong consulting background with demonstrated experience driving business transformation, technology consulting and architecture governance engagements.

• Proven experience leading cross-functional engineering, architecture, delivery and

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