Rizwanul Karim
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Rizwanul Karim Email & Phone Number

Country Director at Redlime Solutions
Location: Dhaka, Bangladesh 7 work roles 2 schools
1 work email found @redlimesolutions.com 2 phones found area 181 and 214 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email r****@redlimesolutions.com
Direct phone (181) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Country Director
Location
Dhaka, Bangladesh
Company size

Who is Rizwanul Karim? Overview

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Quick answer

Rizwanul Karim is listed as Country Director at Redlime Solutions, a with 15 employees, based in Dhaka, Bangladesh. AeroLeads shows a work email signal at redlimesolutions.com, phone signal with area code 181, 214, and a matched LinkedIn profile for Rizwanul Karim.

Rizwanul Karim previously worked as Country Manager at Redlime Solutions and Assistant Manager, Carrier Relations at Global A2Z Pte Ltd. Rizwanul Karim holds Bsc In Electronics & Communication Engineering, Telecommunication. from Brac University.

Company email context

Email format at Redlime Solutions

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{first}@redlimesolutions.com
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AeroLeads found 1 current-domain work email signal for Rizwanul Karim. Compare company email patterns before reaching out.

Profile bio

About Rizwanul Karim

An international IT maven with deep-rooted expertise in both technical and commercial spheres of the industry. With a solid 8-year leadership track at RedLime Solutions, a Texas-based global IT consulting giant, I've championed company milestones - from exponential growth and strategic recruitments to adept vendor negotiations. As the Country Manager based in Dhaka, I wear multiple hats: from rigorous market analysis, expansive networking to upholding our brand ethos, while tailoring our approach to resonate with local nuances.Before my current role, I was instrumental at Mos5tel Limited, a forerunner in Bangladesh's VoIP landscape. My journey from a NOC Engineer to Manager of Carrier Relations is a testament to my dedication and prowess. I've also marked my presence at global stages, representing at esteemed telecom conferences like ITW in Chicago, USA and ACC in Cebu, Philippines.Earlier in my career, I honed my technical skills as a Network Engineer at Agni Systems Limited, a vanguard Internet Service Provider in Bangladesh.I'm always open to collaboration, innovations, and discussions that drive the IT realm forward.

Listed skills include Telecommunications, Ip, Cisco Technologies, Network Administration, and 14 others.

Current workplace

Rizwanul Karim's current company

Company context helps verify the profile and gives searchers a useful next step.

Redlime Solutions
Redlime Solutions
Country Director
dallas, texas, united states
Employees
15
AeroLeads page
7 roles

Rizwanul Karim work experience

A career timeline built from the work history available for this profile.

Country Manager

Dhaka, Bangladesh

As the Country Manager for RedLime Solutions in Dhaka, I've been instrumental in:• Spearheading our growing operations in Dhaka and ensuring we set a strong foundation in this tech-savvy market.• Recruiting top-tier talent and ensuring our team is equipped with the best resources.• Skillfully negotiating deals with vendors and local businesses.• Driving comprehensive market research to gain a deep understanding of local dynamics.• Crafting regular reports that showcase our achievements and direction.• Building lasting relationships with both local and international clients.• Ensuring our projects are timely and within budget.• Modifying our business approach to resonate with local culture while preserving our core identity.• Guiding team members and embedding our company values and vision in all endeavors.• Playing a pivotal role in amplifying RedLime's global footprint and success.

Assistant Manager, Carrier Relations

Global A2Z Pte Ltd

Singapore

After working for 6 month as Executive in the Carrier Relations department I was promoted as Assistant Manager in the same department where I was responsible for: Signing up new VoIP/TDM interconnects from Saarc, Europe, Middle East, Africa & US region. Developing productive business case before interconnecting with any carrier analyzing the carrier business status, credit references, company audit reports and previous payment and interconnection behavior. Building the customer loyalty by ensuring the QoS through coordination with the back end support functions viz. Post-Sales Technical support, customer support, billing and other functions. Synchronizing with Egress Carriers for rates update frequently and maintain good margins according to market rates. Observing Carriers profile on daily basis to assure retention and increase business. Reporting to the CEO, providing regular input on all account activity, including status and call reports on a daily and weekly basis. Identifying the opportunities for the new products, services & applications & enhancing the existing infrastructure for additional revenues.I have also successfully attended the following Carrier conferences:1. International Telecoms Week (ITW) 2014, Chicago, USA.2. Asian Carriers Conference (ACC) 2014, Cebu, Philippines.

Mar 2014 - Feb 2015

Executive, Carrier Relations

Global A2Z Pte Ltd

Singapore

After successfully completing a year as NOC Engineer and due to my excellent communication skills with the customers, the management of Mos5 Tel Limited decided to appoint me to work under Carrier Relations department of their Singapore based Off-shore Company GLOBAL A2Z PTE LTD, where I was responsible for: Establishing and maintaining strong business relationships with wholesale carriers (Domestic & International) Negotiating favorable rates with domestic and international carriers Managing the company’s capacity requirements Managing, reviewing and finalizing NDA’s, contracts and commercial agreements associated with wholesale, international and carrier relations business. Managing all necessary studies, analysis and cost calculations. Utilizing cost calculation methods to develop new price offerings for the company clients. Acting as the subject matter expert (SME) on all issues relating to route management; domestic and international. Managing the implementation of new carriers to the company’s network.

Sep 2013 - Feb 2014

Engineer, Network Operation (Core Network)

Plot-59, 61, Lotus Kamal Tower-2, Gulshan Avenue, Dhaka-1212

As one of the designated engineer to maintain the Network Operations Center (NOC), I was responsible for: Working on Genband: Session Border Controller SBC-S3, Softswitch C3 & Media Gateway G9. Provisioning international carriers in Genband Session Border Controller and configuring the Routes, Calling plan, Codec profile, Realm for each carrier. Monitoring live traffic, maintenance, live traffic quality management through troubleshooting failed calls log with Cause Code exploration, CDR (Call Detail Record) analysis with ASR (Answer/Seizure Ratio), ACD (Average Call Duration), PDD (Post Dial Delay) Monitoring all Critical, Major, Minor, Warning alarms and take action according the problem severity Working as 1st level interface with carriers / ICX / ANS and providing technical support to carriers / ICX / ANS and fulfillment of SLA. Identifying the faults and timely escalation to concerned group/ department through SMS & voice call. Coordinating with carrier / ICX regarding any test session, change request, work order, maintenance schedule and also Trouble Ticket (TT) escalation. Generating Trouble Ticket (TT), escalating according to the escalation level and follow up by coordinating among the various departments. Preparing all types of network performance report & analysis Blocking, unblocking and resetting the trunk circuit. Monitoring MRTG ( Multi Router Traffic Grapher) for performance analysis of various routes and resolve any queries from carriers Planning & commissioning of new circuits based on capacity requirements Communicating with other teams for the smooth operation of the network Shift handover and proper information sharing process flow among the groups

Sep 2012 - Aug 2013

Project Coordinator

Plot-59, 61, Lotus Kamal Tower-2, Gulshan Avenue, Dhaka-1212

As the Project Coordinator from the time of inception of Mos5 Tel Limited I was involved in the overall implementation of their International Gateway (IGW) Project. My responsibilities included:  Multi-dimensional engagement in all levels including coordination among different Local vendors (Miguns Technologies, Spectrum Engineering Consortium Ltd., Mega Power Engineering, Priceclub, BBS Cables, Electromart), international vendors (Genband, Cisco, Ascade, Tejas, NetApp, Symmetricom, Contrimex, Ortea), vendor selection, purchase order and proforma invoice preparation associated with the project. Coordination with bank regarding all types of local and foreign Letters of Credit (L/Cs) related issues. Coordination with Customs & Freight Forwarding Agents for clearing all the incoming telecommunication equipments in compliance with BTRC regulations. Negotiation with the IPLC vendors including Singtel, Telecom Italia Sparkle (TIS), Bharti Airtel, Netronex,1-Asia and Fiber @ Home. Negotiation with Nationwide Telecommunication Transmission Network (NTTN) service providers such as Fiber@Home and Summit Communications. Preparation and submission of all necessary BTRC Documents in due time and maintaining liaison with BTRC officials.  License response and project documentation preparation, Performing detailed Project Management duties for installation works of Mos5 Tel Power Room, Data Center, Fire Suppressions Systems, CCTV & Access Control Systems, Electrical and Data Cable Wiring. Advising the Managing Director and Marketing Director during their preparation for the Strategic Planning of the Board.

Jan 2012 - Sep 2012

Assistant Network Engineer

Monitoring Network Connectivity between Distribution layer and Access layer.Configuring and maintaining wireless devices, providing technical support for clients. Performing end to end testing with field operations in accordance with existing testing procedures.

Jan 2011 - Dec 2011
Team & coworkers

Colleagues at Redlime Solutions

Other employees you can reach at redlimesolutions.com. View company contacts for 15 employees →

2 education records

Rizwanul Karim education

Bsc In Electronics & Communication Engineering, Telecommunication.

Brac University

Activities and Societies: 1. Active member of IEEE. 2. Active Member of BRAC University Cricket Club (BUCC). 3. Keen interest in research.

Ordinary Level & Advanced Level, Science

Sunshine Grammar School & College
FAQ

Frequently asked questions about Rizwanul Karim

Quick answers generated from the profile data available on this page.

What company does Rizwanul Karim work for?

Rizwanul Karim works for Redlime Solutions.

What is Rizwanul Karim's role at Redlime Solutions?

Rizwanul Karim is listed as Country Director at Redlime Solutions.

What is Rizwanul Karim's email address?

AeroLeads has found 1 work email signal at @redlimesolutions.com for Rizwanul Karim at Redlime Solutions.

What is Rizwanul Karim's phone number?

AeroLeads has found 2 phone signal(s) with area code 181, 214 for Rizwanul Karim at Redlime Solutions.

Where is Rizwanul Karim based?

Rizwanul Karim is based in Dhaka, Bangladesh while working with Redlime Solutions.

What companies has Rizwanul Karim worked for?

Rizwanul Karim has worked for Redlime Solutions, Global A2Z Pte Ltd, Mos5 Tel, and Agni Information Systems Private Limited.

Who are Rizwanul Karim's colleagues at Redlime Solutions?

Rizwanul Karim's colleagues at Redlime Solutions include Apple Mahmood, Sk Shanawaz Ferdous, Md Rayhan Uddin, Rafiul Islam Shohan, and Sabber Hossain.

How can I contact Rizwanul Karim?

You can use AeroLeads to view verified contact signals for Rizwanul Karim at Redlime Solutions, including work email, phone, and LinkedIn data when available.

What schools did Rizwanul Karim attend?

Rizwanul Karim holds Bsc In Electronics & Communication Engineering, Telecommunication. from Brac University.

What skills is Rizwanul Karim known for?

Rizwanul Karim is listed with skills including Telecommunications, Ip, Cisco Technologies, Network Administration, Troubleshooting, Routing, Wireless, and Voip.

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