SAMUJJAL KALITA

• Lead enterprise automation and analytics initiatives by setting strategic direction across AI/ML, RPA, Data Science, and Analytics teams, ensuring all technical roadmaps align with business priorities and measurable outcomes.
• Serve as the primary interface between executives, customers, technical delivery teams and recipients of use cases, translating business needs into actionable use cases, driving alignment, and securing stakeholder buy-in through clear communication and structured governance.
• Own portfolio-level automation governance by designing and maintaining centralized dashboards and use-case trackers that provide real-time visibility into delivery status, risk, and ROI for executive decision-making.
• Manage and mentor a team of automation/data analytics engineers by defining KPIs, enforcing delivery standards, maintaining aggressive timelines, and ensuring platform stability and system uptime.
• Guide cross-functional teams through the transition from manual to automated reporting and operations, driving user adoption while minimizing operational disruption.
• Oversee end-to-end analytics delivery by collaborating on RAN data ingestion design in BigQuery and leading downstream data transformation, automation, and executive reporting in Tableau and Power BI.
• Maintain disciplined execution by tracking actions, dependencies, and delivery milestones, ensuring AI/ML and RPA initiatives move efficiently from development into production.
• Champion a data-driven culture by communicating automation outcomes, highlighting wins, and educating stakeholders on new capabilities and emerging opportunities.

• Facilitate seamless retrieval of network-level reports.
• Engineer dynamic Tableau and Power BI Dashboards, enhancing operational efficiency across diverse teams.
• Pioneering Python coding to streamline the organization of extensive datasets.
• Applying SQL scripting expertise for precise and effective data querying.
• Prepare automation for other team to reduce their work effort.
• Produce of use cases and reports
• Execute testing and record test case results.
• Gather and document client specifications.

DTAC_TRUE Consolidation

• Founded a RF Consolidation team from its inception, overseeing the entire process of conducting interviews and recruiting 55 new engineers for the project.
• Executed proof of concept (POC) among various drive test tool vendors
• Automated True's laborious stationary and Single-Site verification drive tests using the Azenqos tool.
• Established processes and fostered collaboration with regional teams and the Global Delivery team.
• Brought significant and critical issues to the attention of top management and presented effective solutions.
• Managed a local MIS team independently.
• Participated in all crucial discussions across all departments of the project on a daily basis
• Detected issues during project deployment and offered improvement solutions to planning and integration teams, leading to a substantial reduction in rollout errors.

Special Route Optimization

• Led Special Route Optimization team, ensuring implementation of effective strategies for network enhancement.
• Highlight: Formulated and implemented Virtual Drive Test (VDT) solution within DTAC Network, resulting in a substantial decrease in need for physical drive tests. This initiative significantly contributed to cost-reduction measure by 20%,
• Drive Testing Reduction
  10-15% reduced carbon footprint estimated for trouble shooting interference issues (external/internal
• Collaborated with cross-functional teams to optimize special routes, including Metro, BTS, and Airport Sky train, Expressways, and Main Roads of Bangkok City.
• Conducted coverage/capacity gap analysis and proposed fill-ins to address network performance issues.
• Successfully resolved call drop issues for VIP customers, demonstrating a commitment to delivering high-quality service.
• Provided weekly and monthly reports to customers, showcasing performance analysis and improvement measures.

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NR Sites Rollout Monitoring (Add On Sales)

• Initiated a team dedicated to RF optimization following a deployment of NR (5G) nodes in the DTAC network
• Developed procedures for end-to-end service deliveries in collaboration with customers
• Led the team in optimizing NR systems while ensuring the Key Performance Indicators (KPIs) across interlayer.
• Major optimization activities guided our team for Over 500 CTR analyses done, thousands of missing anchor detections and additions, NR to NR inter-node relations creation. Carried out ENDC SR audits, which improved ENDC failures by 43% in the network. Our optimization also improved network's NR Inter node HO improved by 8%
• Strictly adhered to KPI Service Level Agreement (SLA) from the site's activation until the completion of FAC, following specified steps (CP1, CP2, PAC, Traffic Balancing, FAC).
• During the course, we created new automated solutions for CP1, CP2, and FAC, incorporating NR Accessibility Handover optimization, leading to enhanced efficiency in man-hours.
• This project was delivered on time with no escalations

Optimization Support

• Swiftly supported Spectrum Refarm project for the operator Robi
• Delivered initial reports to both customer and internal stakeholders
• Conducted thorough analyses to identify potential Key Performance Indicator (KPI) deviations.
• Provided timely and efficient solutions.
• Completed this project task within 2 Months.

DTAC 3G/4G/NR Rollout

• Team Management and KPI Achievement: Managed task distributions among teams on a daily and weekly basis. Directed team to achieve and surpass targeted Key Performance Indicators (KPIs) for Rollout sites.
• Customer Engagement and Service Delivery: Facilitated customer engagement for site handover to DTAC, including feature trials, rollout, and new solution testing. Served as a Customer Unit Team Lead for service delivery, engaging Global Service Delivery Team.
• RF Project Management: Conducted weekly customer project reviews and internal project progress reviews. Managed resource dimensioning, project process setup and improvement, and handled escalations.
• Single Point of Contact (SPOC) and Product Team Liaison: Functioned as Single Point of Contact (SPOC) among Ericsson product team and customer care team for product-related issue escalation and Root Cause Analysis (RCA).
• Network Optimization and Audits: Conducted routine network audits to address inconsistencies. Performed baseline audits and implemented baseline changes. Embraced new techniques and features in network optimization, significantly enhancing quality of experience for mobile data. Led regular network capacity exercises to alleviate 3G and LTE congestion.

Special Route Optimization and Benchmarking delivery

• Overall performance optimization of special VIP routes (Metro and Airport Sky Train, Expressways, Main Roads of Bangkok City)
• Coverage/capacity cell gap analysis and proposals for fill-ins
• Solving call drop issues for VIP customers
• Study drive logs for performance analysis of dual compress mode IRAT handovers, EcNo, RSRQ, RSRP, and abnormal events in different CS and PS services
• Weekly/monthly reports to customers
• Layer 3 message analysis from DT logs and Cell Traces/DCGM logs
• Played critical role in successfully solving robotic voice (Noise) issue in DTAC 3G network
• Handled DTAC benchmark results, report submission, and targets by maintaining synergy among various cluster owners and their leads
• Verification and scrutiny for integrity in “Quarterly Competitor Benchmark Drive Test” result for entire nation's clusters provided by ASP, before sharing the results with operator radio team
• Headed a team for1800 Spectrum Re-farm and mid-band antenna swap

Huawei Post optimization Cluster owner

• Conducting daily KPI analysis to ensure optimal network performance, meeting defined thresholds, and consistently maintaining and enhancing them in the 3G spectrum (850/2100 MHz)
• Monitoring KPIs of sites. Load Balancing, Accessibility, Retainability, Integrity, and Multi-Carrier Multi-RAT Mobility
• Present performance reports to customer technology team on a daily and weekly basis.
• Handling all RF optimization-related activities at the cluster level within the DTAC Central and East Cluster
• Customer complaint reduction to ensure optimization is rewarded with good end-user perception
• Capacity parameter tunings for events for large crowd gatherings (Event preparation and Monitoring)
• Lead a team of four junior RF engineers.
• Ericsson sites FAC/SSOA review and approval on behalf of DTAC.

Team Lead DT & RF Survey

• Lead and distribute work among the DT optimization and RF survey teams (team size = 35).
• Study carefully the problems faced by the DT and Survey teams and provide support and solutions.
• Nominal planning over GSM data usage and predicting coverage with TCPU to attain negotiated targets.
• CCR preparation for WCDMA site. Neighbor Planning, PSC, LAC, RAC, SAC, BCCH, and BSIC Plan for GSM and Preparing CDD before site integration.
• Preparation, checking, and submission of single site verification and final acceptance of sites with customers
• Work closely with the other operational teams (BSS, O&M, and Project) and customers; utilize relationships to ensure that all network-related problems are solved.
• Analysis of EC/Io, RSCP, Different HO Mechanisms, Pilot Pollution, HSPA Test, and Neighbor Cell Audit
• Played critical roles in Maxis AOP-09, AOP-10, and AOP-12 new site rollouts and the 3G launch phase in Assam and in the North East India circle.
• I gained very good experience with TenXc bi-section array antenna systems and their frequency reuse plan.
• I attended trainings organized by the company Andrew Antenna System.

RF Survey and Drive Test Engineer

Kerala/Hyderabad/Assam/Manipur/Arunachal Pradesh/Meghalaya/Nagaland

• Performing drive tests and analyzing RF drive test data to determine network problems, poor coverage areas, interference, call drops, and handover problems
• Manage KPIs for the entire network according to customer requirements from the RF side.
• Propose and conduct surveys of sites to ensure GOS and coverage maintenance
• Conduct city, highway, benchmark, migration, and new site drive tests for analysis.
• Utilize post-processing tools such as MAP INFO, MCOM, and TEMS Route Analysis to prepare drive plots, create various query tabs, and generate presentations based on customer requirements.
• Site survey for RF and TND and nominal proposals in Kerala, India
  Operators have acknowledged swift and effective troubleshooting of customer complaints multiple times for prompt issue resolution and problem-solving.