Middle Back-End Engineer (Node.js)

Miratech

16h•Remote

About The Position

We are looking for a Middle Backend Engineer to join our team and contribute to the development of a new unified enterprise platform for a B2B communications provider. The platform consolidates multiple legacy customer portals into a single solution that supports the full commercial lifecycle for telecom customers.

Requirements

3+ years of backend development experience with Node.js and TypeScript
Good understanding of microservices architecture and API design (REST/GraphQL)
Experience with relational databases, including PostgreSQL and basic schema/data modeling
Experience integrating third-party/external APIs
Knowledge of event-driven systems (Kafka) and exposure to workflow orchestration tools (Temporal.io )
Experience with containerization using Docker; Kubernetes (EKS)
Familiarity with AWS cloud services
English proficiency at B2 level or higher

Nice To Haves

AWS certification (e.g., AWS Certified Developer)
Node.js -related certifications
Experience with VoIP / telecom systems (SIP, signaling, voice infrastructure)

Responsibilities

Design and develop backend microservices for the squad’s modules (Identity/RBAC/MFA, number search, purchase and porting, onboarding automation, CDR and billing pipelines)
Integrate with external carrier, telecom, and third-party APIs (Operator Connect, number/porting providers, ServiceNow, payment and billing systems)
Work with event-driven flows and long-running workflows (Kafka, Temporal.io) under guidance or within defined architecture
Write automated tests, participate in code reviews, and follow CI/CD practices
Collaborate with Business Analysts to clarify requirements and acceptance criteria
Work with Frontend Engineers to define and maintain API contracts