[Hiring] Workflow & Provisioning Lead @Webbing

Role Description

• Deploy and configure Temporal/Camunda or similar Workflow Engine on Kubernetes (self-hosted, production-grade).
• Design and implement SIM Activation workflow: activities for HSS, OCS, PCRF, Inventory update.
• Implement SIM Deactivation workflow with compensation and rollback logic.
• Implement Plan Change workflow (OCS quota update + PCRF policy change).
• Design Inventory Management Database schema: ICCID, IMSI, MSISDN — 30M+ record scale.
• Define workflow versioning strategy (Temporal GetVersion API or similar) — foundational for long-term stability.
• Lead another developer on development tasks and code reviews from week one.
• Order-triggered workflows: Order DB → Temporal/similar signal handler.
• Network trigger handling: location updates → workflow signals via Kong API Gateway.
• Retry policies, dead-letter handling, and alerting per workflow type.
• Temporal production cluster operations and HPA configuration.
• End-to-end integration testing, load testing, runbook authoring.
• Post go-live hypercare and continuous improvement.

Qualifications

• 4–6 years backend software development experience.
• Hands-on experience with a workflow orchestration engine.
• Go or Java — must be comfortable building production services in at least one.
• REST API design and implementation (designing APIs consumed by Kong API Gateway).
• PostgreSQL — schema design, indexes, query optimisation for large datasets (10M+ rows).
• BSS/OSS domain knowledge: provisioning flows, SIM lifecycle, telecom service activation.
• Kubernetes — deploying and operating workloads on K8s (not just writing YAML).
• Experience with event-driven architectures using RabbitMQ, Kafka, or Redis Pub/Sub.
• Experience designing for failure: retry policies, idempotency, compensation logic, DLQ.
• Ability to lead a junior/mid developer day-to-day.
• Fluent English.

Requirements

• Direct Temporal.io production experience (SDK, worker configuration, namespace management).
• Telecom network element experience: HSS, OCS, PCRF, SMSC interfaces.
• Diameter protocol (Ro/Gy/Gx) — even basic familiarity is valuable.
• Experience with mock-first development and contract testing.
• Prometheus + Grafana — instrumenting and monitoring workflow engines.

Benefits

• Fully remote.
• The opportunity for professional development within a reputable international innovative and growing company.
• An exciting and challenging greenfield platform with great skill and knowledge development opportunities.
• The opportunity to join a team of highly professional specialists in an international environment.