SUBEX Placement Papers - SUBEX Interview Questions and Answers updated on Jun 2024

Category: Candidate-Experiences

Category: Candidate-Experiences

Subex Limited is a leading global provider of Business Support Systems (BSS) that empowers communications service providers (CSPs) to achieve competitive advantage through Business Optimization - thereby enabling them to improve their operational efficiency to deliver enhanced service experiences to subscribers.

The company pioneered the concept of a Revenue Operations Center (ROC®) – a centralized approach that sustains profitable growth and financial health through coordinated operational control. Subex's product portfolio powers the ROC and its best-in-class solutions such as revenue assurance, fraud management, credit risk management, cost management, route optimization, data integrity management and interconnect / inter-party settlement.

Subex also offers a scalable Managed Services program and has been the market leader in Revenue Assurance and Fraud Management according to Gartner (2010 & 2011). Subex has also been declared market leader in Business optimization for four consecutive years by Analysys Mason (2007, 2008, 2009 & 2010). Business Optimisation includes fraud, revenue assurance, analytics, cost management and credit risk management. Subex has been awarded the Global Telecoms Business Innovation Award 2011 along with Swisscom for the industry’s first successful Risk Reward Sharing model for Fraud Management.

Subex's customers include 16 of top 20 wireless operators worldwide* and 26 of the world’s 50 biggest# telecommunications service providers. The company has more than 300 installations across 70 countries.


Deliver Value to Excel and Lead
Subex and Subexians will deliver value to all the stakeholders (customers, shareholders, vendors, and Subexians) and will attain excellence and leadership through such delivery of value. We will strive to support the stakeholders in all activities related to us. We will endeavor to improve their business models and to enhance their revenues and profits. In short, we will do our best to meet the expectations of all the stakeholders and to further their value proposition.


Subexians will be fair in their engagements with all stakeholders at all points in time. We will not take advantage of anybody or mislead anyone. In any situation where we need to decide based on the merits of a case, we will be fair to all parties irrespective of the entities/individuals involved. For ease of illustration, some manifestations of this would be:

  • Trust in each other
  • Respect for each other
  • Openness in communication
  • Issue-based decisions and not people-based
  • Focus on "what is being said" instead of "who is saying"


Subex and Subexians will walk the extra mile and go beyond the call of duty to make things happen. We will try our best to achieve the objectives set and will not leave any stone unturned in that process. Our motto is, "Subex will do whatever it takes for Subexians and Subexians will do whatever it takes for customers." For ease of illustration, some manifestations of this would be:

  • Determination to succeed
  • Focus on long-term
  • Good work-life balance
  • Perseverance


In today's competitive world, innovation is a critical element. This innovation must happen in all areas of operation: the way we identify products for our portfolio, the way we develop them, the way we sell them, the way we implement and support them, the way we run our operational processes, and in everything that touches the organization. Subexians will strive towards innovation in all these aspects as that then becomes the defining edge for us and for all stakeholders who are associated with us. Some practices that support an innovative attitude are given below:

It is okay to make mistakes
There is always more than one path to the solution
It is not mandatory to follow convention


Ensuring quality in Subex is an obsession and the high quality standards set by us are achieved through a rigorous quality assurance process. Quality assurance is performed by an independent team of trained experts for each project.

Subex has been following a systematic, structured, concurrent and standardized approach to software development. The engineers at Subex are well trained in the quality processes so that they adhere to these processes when working on their projects. They are also well equipped to adapt to the clients' quality processes whenever required.

Quality Statement
"Subexians are committed to achieve total customer satisfaction by delivering high-quality products that meet the needs and expectations of our customers." We are committed to adhere to quality management system requirements and to continually improve them.

Subex History

  • 1992-Subex is Born
  • 1999
    Public Listing Indian SE MCAP US$5M
    First non-BT Interconnect Implementation - Telenor
  • 2000- Acquired IV Generation, Telecom Software Consulting
  • 2001
    First International Installation of FMS
    Acquired Magardi Inc., Canada
  • 2002-First installation of RA for BT
  • 2004
    Acquired Lightbridge Inc, Fraud Management Business Assets
    Acquired Alcatel Fraud Management Group, Fraud Management Business Assets
  • 2006
    Acquired Azure Solutions, Revenue Assurance Company
    Acquired Sotas, Fraud Management Business
  • 2007
    Listing on London-Stock Exchange MCAP US$600M
    Acquired Syndesis, Canada
  • 2009-Launch of Managed Services
  • 2010-Launch of RocCloud SaaS model

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