Senior Software Engineer
Core
Design, develop, and maintain backend services and API integrations for the eSim product offering in the FinTech/telecom sector.
Role type
Senior Software Engineer (Backend)
Builds
eSim product features and core platform services for telecom operators and end-users
Domain
FinTech / Telecommunications
Deliverable
production ML models | product features
Required skills
Spring Boot, Java, Kotlin, REST APIs, SQL, distributed systems, asynchronous/event-driven patterns, CI/CD, Git, AWS
Preferred skills
Telecommunications protocols (Gx/Gy/DIAMETER, SMPP), OAuth2/OIDC, OpenAPI/Swagger, MariaDB, JPA/Hibernate, Docker, Kubernetes, GoLang, Python, Perl, GCP
Technologies
Spring Boot, Java, Kotlin, AWS, MariaDB, Docker, Kubernetes, GoLang, Python, Perl, GCP
Responsibilities
Design and develop Spring Boot services; Build and support API integrations across telecom systems; Work with asynchronous/event-driven flows; Improve reliability, performance, and observability of backend services; Collaborate with product and engineering teams to ship features
Seniority
Senior, hands-on IC