Workflow & Provisioning Lead

About the role

Webbing, a global data MVNO delivering enterprise-grade connectivity and IoT services, is looking for a Workflow & Provisioning Lead. You will deploy and configure a workflow engine such as Temporal or Camunda on Kubernetes, design and implement SIM lifecycle workflows, and lead another developer from day one. The role is fully remote.

Key responsibilities

• Deploy and configure Temporal/Camunda or a similar workflow engine on Kubernetes (self-hosted, production-grade).
• Design and implement the SIM activation workflow (HSS, OCS, PCRF, inventory update) and the SIM deactivation workflow with compensation and rollback logic.
• Implement the plan change workflow (OCS quota update and PCRF policy change).
• Design an inventory database schema for ICCID, IMSI and MSISDN at 30M+ records, and define a workflow versioning strategy.
• Build order-triggered workflows and handle network triggers via the Kong API Gateway, including retry policies, dead-letter handling and alerting.
• Manage the Temporal production cluster, HPA configuration, end-to-end and load testing, runbooks and post-go-live hypercare.
• Lead another developer on development tasks and code reviews from week one.

Required profile

• 4-6 years of backend software development experience.
• Hands-on experience with a workflow orchestration engine; Temporal.io strongly preferred, with production experience of workers, activities, signals and timers.
• Go or Java, able to build production services in at least one.
• BSS/OSS domain knowledge: provisioning flows, SIM lifecycle, telecom service activation.
• Ability to lead a junior or mid-level developer day to day.
• Fluent English.

Required skills

• REST API design and implementation, consumed by the Kong API Gateway.
• PostgreSQL, with schema design and query optimisation for large datasets.
• Kubernetes deployment and operation of workloads.
• Event-driven architectures with RabbitMQ, Kafka or Redis Pub/Sub.
• Design for failure: retry policies, idempotency, compensation logic, DLQ.
• Nice to have: Diameter protocol, Prometheus + Grafana, mock-first development, contract testing, eSIM / GSMA SGP.22, and experience at a telecom operator, MVNO or vendor.

What we offer

• Fully remote work.
• Professional development within a reputable international, growing company.
• An exciting greenfield platform with strong skill and knowledge growth.
• A team of highly professional specialists in an international environment.