Senior API & Integration Engineer (E-Wallet, Cloud & AI)

Emergesoft is a company with 14 years on the market, operating across 3 continents, employing around 100 people with over 90% at senior level. They manage a high-throughput global mobile money platform handling 50 million transactions and 1 billion mobile money accounts daily, with transaction values up to 1 billion USD.

• Deep mastery of backend development with Go, Java, Python, or C# in high-throughput, low-latency financial or telecom systems.
• Proven experience in API Architecture & Enterprise Integration Patterns (EIP) using orchestration tools like Temporal or Camunda or custom mediation layers.
• Strong background in cloud migration with AWS, GCP, Azure, Kubernetes, Docker, and Infrastructure as Code tools like Terraform or OpenTofu.
• Expertise in relational databases (PostgreSQL, MySQL) and event-driven streaming (Kafka, RabbitMQ).
• Exposure to telecom protocols (USSD, SMSC) or enterprise e-wallet engines (Ericsson MFS, Huawei Mobile Money, Telepin) is a major plus.

API Orchestration & Mediation:

• Design and implement intelligent mediation layers connecting modern web/mobile apps, telecom networks (USSD/SMS), and core e-wallet ledger engines.

Cloud Migration & Architecture:

• Lead backend re-architecting of core e-wallet infrastructure, breaking down monolithic systems into scalable, containerized microservices on Kubernetes.

AI & LLM Workflows:

• Build integration endpoints and application logic for AI capabilities, orchestrating LLM workflows, RAG pipelines, and vector databases into the fintech ecosystem.

Fintech Security & Resilience:

• Write highly concurrent code with transaction rollbacks (Saga pattern), circuit breakers, and fintech-grade security protocols (mTLS, OAuth2, PCI-DSS).