OCS/PCRF Deployment & Operation Lead


Job Description

We have an opening for an OCS/PCRF Deployment & Operations Lead who wants to gain valuable experience and exposure in a hyper-growth environment in Singapore.

Do you want to get first-hand insights on how a hyper-growth company operates?

Are you interested in being part of a fun, energetic team that thrives in an entrepreneurial tech environment?

If the answer is YES, read on to find out more about the role at Circles.Life!

Job Description

As our OCS/PCRF Deployment & Operation Lead, you will be responsible for the design, deployment, integration, IOT, UAT and operations/maintenance of Circles.Life charging and policy systems. Your responsibilities are as per below:

  • Integration design & architecture finalisation with circles.life SCP/OCS/PCRF suppliers and mobile operator.
  • Coordinate HW deployment with HW supplier and data-centre team.
  • IOT & UAT test creation, execution and management.
  • Create and manage design & architecture documentation of SCP/OCS/PCRF.
  • Create and manage product configuration documentation on SCP/OCS/PCRF.
  • Product configuration on SCP/OCS/PCRF.
  • Troubleshoot interworking issues with PS/CS core systems and analyse traces
  • Participate in solution design and development for expansion and rollout.
  • Perform analyse and review applications being released into production.
  • Create, test and deploy rate plans and products on OCS platform
  • Install, patch and maintain OCS and PCRF Applications
  • Define and execute Backup/Restoration procedures for disaster management
  • Support QA and Customer Support Teams for operations, testing, and customer escalations.
  • Analyse and improve performance of OCS with oracle database
  • Provisioning of customers on HLR through API gateway.
  • Handle daily operations support tasks in a 24*7 environment.


- 7+ years Operations Experience in a large-scale Mobile Network Operator in a multivendor environment.
- Experience in all aspects of project implementation lifecycle charging/policy.
- Minimum of Five (5) years' hands on experience supporting OCS/PCRF applications with Tier-1 Telco/Vendor Experience.
- Minimum 2 e2e project implementation & delivery experience of SCP/OCS/PCRF.
- Hands on experience on OCS/PCRF/SCP systems (Oracle ECE experience will be preferred)
- Experience with Diameter GX, GY, RO, SP, RX interfaces, signalling flows and AAA protocol.
- SQL/plSQL statements (create, select, insert, delete)
- Basic knowledge of shell/Perl scripting.
- Knowledge of GSM, INAP, CAP, SS7, SIGTRAN and IP networking protocols.
- Understanding of signalling flows for voice, data, SMS.
- Wireshark tracing and packet capture
- Hands on experience of core networks (GGSN/SGSN) is desirable.
- Knowledge and experience Project Management, Change Management, Fault management, Incident Management.
- ITIL & Prince 2 foundation certification will be a plus.


1.5M ~ 3M TWD/year

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About us

Circles.Life is World’s first and most successful digital telco. We have a mission: to re-imagine the mobile experience for the digital consumer through our customer-centric mobile platform and disrupt the multi-trillion dollar global telco industry.

We launched our services in Singapore in 2016 and have since gained market share quickly while delivering best-in-class customer experience. Currently, Circles.Life beats all other telcos on metrics like NPS, subscriber growth, average data used per subscriber and overall customer satisfaction.
Circles.Life 是全球第一間也是目前最成功的數位通訊公司。我們致力於改變傳統對於電信通訊的想法以及經驗,藉由整合以及利用網路雲端數據提供全新的通訊平台,讓消費者對於電信有新的一層體驗。




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