Workflow & Provisioning Lead
About this 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.
nd-to-end integration testing, load testing, runbook authoring.
Post go-live hypercare and continuous improvement.
Requirements
- 4-6 years backend software development experience.
- Required: Hands-on experience with a workflow orchestration engine.
- Temporal.io strongly preferred - production experience with workers, activities, signals, timers.
- Camunda, Apache Airflow, or equivalent accepted if strong fundamentals.
- 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