Workflow & Provisioning Lead

Webbing; Finland; On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Fully remote

Professional development opportunities

Challenging greenfield platform

International team of specialists

Job summary

Webbing is seeking a skilled backend software developer focused on workflow orchestration and Kubernetes. In this role, you will deploy and manage production-grade Workflows on Kubernetes and lead development efforts for SIM activation and deactivation workflows. Candidates should have 4-6 years of backend development experience and are preferably proficient in Go or Java, as well as having strong skills in PostgreSQL database management and REST API design. This fully remote position offers opportunities for professional growth in an international setting.

Qualifications

• 4–6 years backend software development experience.
• Hands-on experience with a workflow orchestration engine.
• Go or Java experience for building production services.
• Experience with PostgreSQL schema design.
• Knowledge in telecommunications provisioning flows.
• Kubernetes operational skills.
• Fluent in English.

Responsibilities

• Deploy and configure Workflow Engine on Kubernetes.
• Design and implement SIM Activation workflow.
• Lead a developer in tasks and code reviews.
• Implement Plan Change workflow.
• Conduct end-to-end integration testing.

Skills

Backend software development

Workflow orchestration engine

Kubernetes

REST API design

PostgreSQL

Leadership

Event-driven architectures

English proficiency

Tools

Temporal.io

RabbitMQ

Kafka

Redis

Prometheus

Grafana

Job description

Responsibilities

• 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 hyper‑care and continuous improvement.

Requirements

Must Have

• 4–6 years backend software development experience.
• Hands‑on experience with a workflow orchestration engine. Temporal.io strongly preferred — production experience with workers, activities, signals, timers.
• 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.

Strong Advantage

• 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.

Nice to Have

• Experience at a telecom operator, MVNO, or telecom vendor (Ericsson, Nokia, Huawei, etc.).
• Knowledge of eSIM / GSMA SGP.22 standard.
• Python — for tooling, scripting, test automation.

About Webbing

Founded in early 2010, Webbing is a global data MVNO that delivers enterprise grade, global connectivity and IoT services across more than 200 countries and 600+ mobile carriers' networks. Webbing's secured network delivers network protection and web content intelligence. Enterprise customers can manage, monitor, and optimize data usage in real‑time with Webbing's powerful software platform. Gain visibility by application type and have the power to white list applications and limit non‑business applications with the click of a button, saving money and improving compliance.

What we offer

• 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.
• The opportunity for professional development within a reputable international innovative and growing company.