Software Engineer
Resume:
Sheikh Ali Tasfin
Address: **** **** ****, *****, ** 75025 Tel 832-***-**** email: *******@*****.***
OBJECTIVE:
To obtain a suitable position in the fields of networking and telecommunication software development/testing position where I can use
my 10+ years of experiences of the related areas and can have an opportunity to achieve my professional goals.
TECHNICAL SUMMARY:
o Extensive work experience and knowledge of Distributed / Enterprise / High performance computing using Java, J2EE, Jboss,
Servlets, JDBC, XML Technologies.
o Extensive knowledge in SDLC and experience working on Agile-Scrum development methodology using ALM (Application
lifecycle management) software suites like JIRA.
o Expertise in MVC architecture using Spring-4.1, Struts and Hibernate frameworks.
o Expertise experience deploying software in cloud environment through VMWare ESXi 5.1 and Redhat enterprise software 6.0
o Extensive knowledge in Implementation of Minsat CP3, SDP, AIR and VS
o Profound knowledge in signaling/protocol analysis tools like Wireshark, Tektronix.
o Extensive knowledge in Installation and Integration of SDP over SIGTRAN, SDP with CCN for charging of SMS via CAPV3,
charging of GPRS and content through DIAMETER
o Profound knowledge in Java J2EE application testing in linux environment (Jboss-6.3, Spring-4.1 )
o Excellence in using Shell scripts/AWK/Pearl Scripting
o Excellence in trouble shooting using UNIX/LINUX commands
o Extensive knowledge and experience in Mediation layer software this include billing/charging and translator of NBI/SBI interface
o Extensive database development skills using SQL, Triggers Stored Procedures, Functions for various Relation Databases like
Oracle8i/ 9i/10g, DB2 9.X and MSQL 5.5
o Experience in High Availability (HA) architecture.
o Extensive experience in TL1 (Transaction Language), CLI (Command line Interface) MML (Man Machine Language commands
for Layer2, Layer3 and Circuit switching.
o Extensive work experience on GPON (Gigabit Passive Optical Network) of ADTRAN TA5000 and TA5006
o Extensive knowledge in High Availability (HA) base software like ECIL and AOE with backend database is MySQL
o In depth protocol feature testing for SS7 (MTP, MTP3, SCCP, ISUP, MAP, TCAP) and Sigtran (M3UA, SCTP, BICC CAP) their
failure analysis.
o Extensive test case analysis on GRE tunneling, TCP / SNMP / ARP failover case analysis.
o Extensive Software testing network device like L2 (NMD) and L3 (TA500)
o Call flow automation testing (CM Service request, ACM, ANM etc.)
TECHNICAL SKILLS:
Programming Languages Java, Python, C, C++
IDE Tools Eclipse, Net Beans
Frame Work Java Struts 1/2, Spring 4.1, Hibernate 3.0
J2EE Technologies Servlets, JSP, JDBC,
Application Server Jboss, Apache
Operating Systems Windows 98/NT/2000/XP/vista/7, UNIX, LINUX, Sun Solaris, Ubuntu
Database + Tools Oracle, MySQl, PostgreSQL, Informix, TOAD, SQL tools.
Ericsson MSS (R12.1, APZ212 50, APG40), MGW (R4.1), STP\FNR (R12.1, APZ212 50, AXE810),
HLR (R12.1, APZ212 50). Business Object (BO), ENIQ BO MSC Blade Cluster(R
12.1), CANDI, CAN
Huawei MSC(M800) MSS(Msoftx 3000) MGW(UMG8900), M2000, IP STP (SG700), HLR(M800),
GuHLR, NgHLR(9820), IManager, LMT Tools, SMU Client
Other Telecom Tools Tektronix, Wire Shirk, Mapnifo, Planet, ADTRAN TA5000, TA5006
LAN and Wifi Switches LAN Switch: CISCO Catalyst Series 2960G, 2960, 2950, SMC Tiger switch, Dlink Xstack
Series DES 3526, 3200
AP: Cisco Aironet Ap 1130G, 1142 AK 96 Series
ADTRAN TA5000, TA5006, ECIL, AOE: CLI and TL1 Commands
Data Modeling Tools MySQL Workbench, Oracle SQL Developer Data Modeler
Sheikh Ali Tasfin
Address: 9600 Coit Road, Plano, TX 75025 Tel 832-***-**** email: *******@*****.***
WORK EXPERIENCE
Software Engineer (Service and Software), Infovision Inc@Ericsson, Plano, TX (May 2014 ~ Onwards)
o Deploying, integrating & testing of Ericsson Mediation Layer (EMS) software known as ECIL (Ericsson Converged Integration
Network) based on GPON technology at south east region of AT&T.
o Configuring MySql standard database for replication in distributed environment, this include scripting with Perl and using SQL,
Triggers Stored Procedures, Functions for various Relation Databases like MySql
o Writing CROND job for checking CPU, Memory, Disk space Usage and Log file analyzer to keep track of catastrophic failure,
unusual switchover and HA anomaly.
Creating script for user, partitioning, rollback, replication, stored routines, upgrade& business configuration for HA
o
support
High Availability (HA) server configuration, setting up data base and file replication for master and secondary servers,
o
testing switchover Primary to Secondary, log analysis if the switchover doesn’t work in the cloud environment.
o Test bed setup for ECIL (Ericsson Converged Integration Network) and AOE (Advance Operation Environment)) which includes
VM creation (VMWare ESXi 5.1),OS Installation (Redhat Enterprise Linux 6.x), disk partition, memory allocation, CPU
customization and configuration. The hardware and storage use for ECIL and AOE application is hp proliant dl380p Gen8, SAN HP
MSA 2040 for distributed cloud environment
o System verification testing centric to the OSS application (Provisioning Data & Voice application, Alarm checking, AM (Alarm
Monitoring, PM (Performance Monitoring), FM (Fault Mentoring) Report generation .
o Upgrading, administering, backup and recovery of SQL Server Databases.
Creating necessary PLSQL, SQL and MySql script for database backup and necessary table modification, alteration in
o
new release
o Log file checking, debugging to identify the root cause for the issues. Log file are mainly server.log, application.log, jboss.lob,
mysql.log etc are mainly focused.
o Restoring, backup, provisioning and configuring ADTRAN TA5000 and TA5006.
o Writing Perl/AWK,/Bash script for consistency check between primary, standby and monitor server
o Altering Perl script for Active (Primary), Standby (Secondary) and Monitor server and their health status check.
o Setup network environment for the software this include SSH/FTP/SCP in linux environment
o Setup basic firewall configuration for AT&T OSS layer this include IP table alteration port enable etc.
o Setup security Level in software this include JBOSS Vault creation, SQL password change, XML password file creation
Platform: Spring4.1, Jboss, Red hat Enterprise Linux
Jr. Software Engineer (NSS), Customer Care Solution Inc@AT&T, Austin, TX (November 2013 ~ May 2014)
Developed test cases with the help of Robot Framework, Selinium server, Debian router (Wheezy, Squeeze, Lenny) for
o
AT&T Network Management Device known as NMD.
Performed regression testing, alpha testing and black box testing for different distributions of NMD, Bates, VTA by
o
identifying various high severity defects, bugs and troubleshooting network or software related issues for AT&T(AWS).
Wrote test cases for GRE CALEA tunnel for blackhole recovery when BOGOND service is running. Check status for
o
TCP DUMP by using Wireshark and check the status of DHCP using the .pcap file
Performed manual testing for regression like click through, db download in PostgreSQL, Virtual tunnel checking for
o
CALEA, content caching, log view etc for NMD, VTA and Bates.
Fixed bug and troubleshot for networked devices for network-related problems like system failures related to network
o
configurations, network switching / routing, network devices, bridge, VLAN and datacenter equipment.
Developed a reporting system using python, shell scripting and sql backend which is used for test case automation in a
o
Selenium based automation system for web, agile development process. These reports are mainly used for Qos, Log monitoring,
event generation, reporting in routers and servers sides.
Created complex case scenarios for regression and black box testing by SNAT, MASQUERADE, VLAN, Tunneling, GRE
o
Tunneling, VLAN, Bridges, IPSEC in the testbeds.
Sheikh Ali Tasfin
Address: 9600 Coit Road, Plano, TX 75025 Tel 832-***-**** email: *******@*****.***
Lab Assistant, High Speed Computer Lab, Lamar University, Beaumont, Texas, (September 2011-Auguts 2013)
Designed System for the UNIX and Solaris LAB for distributed system
o
Packet network performance analysis including packet drop, latency and jitter analysis
o
Lead Engineer (Core Network Performance), GrameenPhone Ltd, Dhaka, Bangladesh (Jan 2010 ~ Sept 2011)
Performed software feature testing, Bug identification, test case writing the Reporting tools name AR&D (Automated
o
Report Generation and Dashboard). This is a CXO management level software for Telenor and GrameenPhone for network status,
KPI and performance report.
Performed performance monitoring, testing and escalating voice & data service KPI index.
o
Developed a tools using informatica for performance alarm.
o
Worked on Identification of Voice service parameters related to FCAPS for monitoring and follow-up. FCAPS is the ISO
o
Telecommunications Management Network model and framework for network management
Analyzed and recommended on network initiatives, including feature addition/deletion, on customers’ experience impact.
o
Ensured maximum effectiveness of performance improvement initiative through follow-up.
Identified performance aspects & KPIs/ KQIs in Broader Level and followed-up accordingly.
o
Developed an automated report by with the help of Tektronix/Wire Shark and analyzed all the cause code, failure cause
o
relevant to voice service.
Deputy Superintendent Engineer (Core and Service), GrameenPhone Ltd, Dhaka, Bangladesh (Aug 2006 ~ Jan 2010)
Developed a translator to translate SCP CDR. It is developed along with one of my supervisor by reading some Ericsson
o
provided documents.
Developed an auto rebating system for GrameenPhone which can automatically rebate the customer for overcharging
o
due to some network element timing problems and it got a huge success at GP. This was selected for Best success in the monthly
talent report. This was done using MINSAT CCAP, C socket programming and shell scripting.
Was an active team member of CS 3.0 upgrade and worked closely with Ericsson team.
o
Provided solution to the SDP1 outrage which also a dire need at that time. I successfully restored the users balance
o
before the corruption was made at SDP1.
Worked with Sybase database integrated in Ericsson System.
o
Responsible for the implementation of tariff plan in SDP.
o
Planning for diameter based protocol and implemented it to charge the prepaid GPRS. But the project was not
o
successful because GP couldn’t provide GPRS to the subscriber because there is no charging method available.
Worked with business intelligence systems for CRM department.
o
Performed Ericsson ENIQ Migration project where compiled all the Business Object (BO) reports and universe any
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streamline them according to the counter for ENIQ migration project.
Deployed MSC-S Blade Cluster Integration project in the GrameenPhone network. KPI mapping, threshold setting,
o
continuous analysis, follow-up and feedback to achieve the target KPI level.
Assistant NSS Engineer (Core Network Operation), Huawei Technologies co. Ltd, Dhaka, Bangladesh (Oct 2005 ~ Aug 2006)
Performed Data Migration Project of CityCell which was as end-to-end solution HLR migration from Motorla to
o
Huawiei system using RPG date conversion tools. It includes Data Collection, Feasibility Study, Installation, Commissioning,
Database build of HUAWEI product.
Developed automated script in Perl scripting for HLR subscriber provisioning, MSC configuration, O&M and
o
Performance testing
Developed database in Oracle 8 for OSS of M2000 Huawei OSS system.
o
Information Tech. Executive, Pacific Bangladesh Telecom Limited, CityCell, Dhaka, Bangladesh (Jul 2004 ~ Oct 2005)
Developed billing software for post paid billing service with C++ socket programming.
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Developed a billing mediation system known as medusa core, the system had 1 mediation agent 2 provisioning agents.
o
Sheikh Ali Tasfin
Address: 9600 Coit Road, Plano, TX 75025 Tel 832-***-**** email: *******@*****.***
Developed an interconnect billing automation software (Java, Oracle, HP-UX) to generate bills for the roaming partners
o
of AKTEL.
Developed CDR collectors (Java, Perl, HP-UX) to pull the user call data records from mediation system.
o
EDUCATION:
Lamar University, Texas, USA
Masters of Science Degree in Computer Science, May 2013, GPA: 3.76
Independent University Bangladesh, Dhaka, Bangladesh
Bachelor of Science Degree in Computer Science, December, 2004, GPA: 3.73
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