Senior Back-End Engineer, Node.js

Miratech

Senior Back-End Engineer developing backend microservices and integrating APIs for a global IT consulting company. Collaborate with teams to enhance B2B communications solutions and maintain high-quality code.

Posted 7/11/2026full-timeRemote • 🇵🇱 PolandSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in backend development with Node.js and TypeScript, focusing on microservices architecture, API design, and integration with third-party systems. Proficient in implementing event-driven workflows and utilizing cloud services, particularly AWS.

Highest-signal resume keywords

Backend Development with Node.jsMicroservices ArchitectureAPI Design (REST and GraphQL)Event-Driven Systems (Kafka)Workflow Orchestration (Temporal.io)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Node.jsTypeScriptMicroservices ArchitectureAPI DesignPostgreSQLKafkaTemporal.ioDockerKubernetesAWS Cloud Services

Soft Skills

CollaborationCommunication

Tools & Technologies

CI/CD PracticesAutomated TestingCode Reviews

Certifications & Qualifications

AWS Certified DeveloperNode.js - Related Certifications

Industry Keywords

Telecom SystemsVoIPSIPSignalingVoice Infrastructure

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.