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Miratech

Senior Back-End Engineer, Node.js

Miratech

Senior Back-End Engineer developing microservices for a B2B communication platform. Joining a global IT company to integrate external APIs and implement event-driven workflows.

Posted 7/9/2026full-timeRemote • 🇺🇦 UkraineSeniorWebsite

Tech Stack

Tools & technologies
AWSCloudDockerGraphQLJavaScriptKafkaKubernetesMicroservicesNode.jsPostgresServiceNowTypeScriptVoIP

About the role

Key responsibilities & impact
  • Design and build 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)
  • Implement event-driven flows and long-running workflows (Kafka, Temporal)
  • Develop automated tests, participate in code reviews, and follow CI/CD practices
  • Collaborate closely with Business Analysts to refine requirements and acceptance criteria
  • Work with Frontend Engineers to define and maintain API contracts

Requirements

What you’ll need
  • 5+ years of backend development experience with Node.js and TypeScript
  • Strong background in microservices architecture and API design (REST and GraphQL)
  • Solid experience with relational databases, including PostgreSQL and schema/data modeling
  • Proven track record of integrating third-party and external APIs
  • Hands-on experience with event-driven systems, including Kafka
  • Experience with workflow orchestration tools such as Temporal.io
  • Proficient in containerization and orchestration using Docker and Kubernetes (EKS)
  • Practical experience working with AWS cloud services
  • English proficiency at B2 level or higher
  • Nice to have: AWS certification (e.g., AWS Certified Developer), Node.js -related certifications, Experience with VoIP / telecom systems (SIP, signaling, voice infrastructure)

Benefits

Comp & perks
  • Culture of relentless performance : join an unstoppable technology development team with a 99% project success rate and more than 30% year-over-year revenue growth.
  • Competitive pay and benefits : enjoy a comprehensive compensation and benefits package, including health insurance, language courses, and a relocation program.
  • ForeverRemote work culture : make the most of the flexibility that comes with remote work.
  • Growth mindset : reap the benefits of a range of professional development opportunities, including certification programs, mentorship and talent investment programs, internal mobility, and internship opportunities.
  • Global impact : collaborate on impactful projects for top global clients and shape the future of industries.
  • Welcoming multicultural environment : be a part of a dynamic, global team and thrive in an inclusive and supportive work environment with open communication and regular team-building company social events.
  • Social sustainability values : join our sustainable business practices focused on five pillars, including IT education, community empowerment, fair operating practices, environmental sustainability, and gender equality.

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Hard Skills & Tools
Node.jsTypeScriptMicroservices ArchitectureAPI DesignPostgreSQLKafkaTemporal.ioDockerKubernetesAWS Cloud Services
Certifications
AWS Certified DeveloperNode.js Certifications