Role: ServiceNow SOMT Data Modeller

Location: Chennai, Bangalore, Hydrabad or Pune (1 – 2 days on-site per week)

Duration: 12 months

Responsibilities

- Review existing models and define customer-facing service (CFS), resource-facing service (RFS) and resource specifications at the appropriate level of detail for each service journey.
- Distinguish service types, resource types, operational instances, characteristics and fulfilment tasks. Justify modelling choices through lifecycle, identity, ownership and reuse needs.
- Create model diagrams, a data dictionary and characteristic definitions covering types, allowed values, mandatory fields, cardinalities, relationships and validation rules.
- Define catalogue relationships and decomposition mappings with the architect and developers, including characteristic propagation and any required quantity or dependency rules.
- Map incoming TMF641 data, manually captured supplier information and fulfilment results to order records, service inventory and outbound TMF638-style notifications.
- Specify reliable service identifiers, supplier references, source-of-truth ownership and lifecycle changes for Create, Cease, bounded MACDs, amendments and cancellations.
- Align lightweight service inventory and CMDB relationships with assurance needs. Identify the minimum approved resource representation and assess later inventory extensions separately.
- Version models and mappings, assess changes to existing payloads and workflows, and prepare representative data with positive, invalid, missing-value and duplicate cases.
- Support catalogue configuration, model verification and client-led testing. Reconcile data discrepancies and hand over editable models, mapping rules and operational field guidance.

Essential experience and skills

- Practical telecom service-catalogue, fulfilment or inventory modelling experience,



including implementable models rather than only conceptual enterprise diagrams.
- Working knowledge of the TM Forum product, service and resource (PSR) concepts and SID principles, including CFS/RFS specifications, resource specifications and their instances.
- Hands-on familiarity with ServiceNow catalogue and inventory configuration, or demonstrable experience translating telecom service models into a ServiceNow implementation.
- Ability to produce source-to-target mappings, characteristic dictionaries, entity relationships, cardinalities and validation rules that developers and testers can use directly.
- Understanding of TMF641 payloads, TMF638 service representations and the relationship between catalogue definitions, order data, operational inventory and CMDB records.
- Experience modelling identifiers, state transitions, model versions and reconciliation across initial fulfilment and subsequent service changes.
- Ability to run detailed workshops with service designers, architects, business analysts and Build teams, and explain the operational consequences of modelling decisions.

Desirable experience

- ServiceNow CMDB, CSDM or TSOM experience, including identification, reconciliation and service-to-resource relationships.
- Offnet broadband, customer-premises equipment, satellite access or provider-specific service modelling experience.
- TMF633 service-catalogue concepts, schema validation, data profiling or scripts to check model and mapping consistency.

Expected deliverables
- Versioned service/resource specification models, relationship diagrams, a characteristic dictionary and decomposition mappings.
- API and manual-input mapping matrices, inventory identity and lifecycle rules, and reconciliation criteria.
- Representative test data, validated catalogue configuration and model walkthroughs for developers, testers and support teams.

📌 ServiceNow SOMT Data Modeller (Hyderabad)
🏢 TTC Group (Tech Talent Consulting)
📍 Hyderabad