Remote Backend Software Engineer with Ownership and Impact

Addition Solutions is seeking an experienced Software Developer to join its engineering team fully remotely. You will design, develop and maintain the core SaaS platform, with emphasis on reliable backend services, APIs and multi‑party integrations.

You’ll also engage with frontend code when needed and own production systems to ensure resilience. Ideal candidates bring 4–6 years of commercial software experience, strong backend skills in C#, Go, or Java, and a pragmatic, ownership‑driven