SUNOLLO PTE. LTD. · Singapore, Singapore ·
Senior backend engineer in Singapore who designs, builds, and owns revenue-critical platform systems for a residential clean-energy company. Initial focus is a billing/invoicing engine (subscriptions, milestone payments) with third-party integrations via OAuth2 and webhooks (e.g. Xero), background jobs, and APIs, using PostgreSQL and Supabase.
Sunollo is building a premium residential energy platform that combines high-quality hardware, reliable installation operations, and software to make clean energy simple for homes in Singapore.
We are looking for a Backend Engineer (Platform) to design, build, and own revenue-critical backend systems. The initial focus of this role is to build the foundation of our billing platform, followed by broader platform and internal systems.
This role is suitable for a senior backend engineer who enjoys high ownership, clear scope, and building production systems that are reliable and maintainable.