Key skills
GolangPythonDistributed systemsAPI designAWSData structuresSystem designPerformance optimizationRelational databasesNon-relational databasesSpanishcommunicationAIGraphQLRedisCachingPerformance OptimizationLoad BalancingCommunication
About this role
DEUNA is a rapidly growing startup revolutionizing global commerce with ATHIA, an AI-powered orchestration and payments platform. They are seeking a Backend Staff Engineer to act as a technical expert and architectural leader focused on solving complex engineering challenges and setting backend engineering standards.
Responsibilities:
- Design and evolve scalable, secure, and resilient backend systems
- Architect high-availability APIs and distributed services
- Define best practices for reliability, observability, and performance
- Write high-quality, production-grade backend code
- Lead refactoring efforts and performance improvements
- Identify system bottlenecks and implement scalable solutions
- Design data models, caching strategies, and asynchronous workflows
- Provide technical direction across teams
- Lead complex design discussions and evaluate trade-offs
- Improve backend development standards and documentation practices
- Design systems capable of handling high-traffic and transaction-heavy workloads
- Define strategies for load balancing, scaling, monitoring, and failure handling
- Improve system instrumentation and observability
Requirements:
- Extensive experience as a Senior Backend Engineer, Principal Engineer, or Staff Engineer
- Strong backend expertise in: Golang and/or Python
- Deep experience with: Distributed systems, API design (REST/GraphQL), Event-driven architectures
- Strong knowledge of: Data structures and algorithms, System design and performance optimization, Design patterns
- Experience with AWS and cloud-native infrastructure
- Strong knowledge of relational and non-relational databases
- Experience with caching (e.g., Redis) and messaging systems
- Strong understanding of security best practices
- Excellent communication skills. Native or fluent English. Spanish is a plus
- Experience in payments, fintech, or financial infrastructure
- Experience designing transaction processing systems
- Familiarity with fraud prevention, payment orchestration, or financial compliance systems