Senior Backend Engineer

Senior Backend Engineer Contract (Remote - USA) Kotlin · Spring Boot · Kafka · PL/SQL · DataDog · Superblocks A fintech client is modernizing their platform with a low-code architecture. You'll design and build scalable backend APIs from the ground up, own code quality and observability, and mentor a team of junior engineers. This is a senior, hands-on role. You'll work with limited direction — accountability and ownership are non-negotiable. ✅ 8–15 years backend experience ✅ Hands-on Kotlin API development ✅ Kafka integration experience ✅ Agile/Scrum team experience ✅ Bachelor's in CS or equivalent Bonus: Superblocks or prompt engineering experience