Technology Executive Driving Enterprise Transformation

SANKAR THANGARAJ

Technology Executive Enterprise Architecture Engineering Transformation

Building High-Performance Technology Organizations and Billion-Scale Platforms That Drive Business Growth

******.*************@*****.*** 425-***-**** www.linkedin.com/in/sankar-thangaraj-725b8351 Seattle, WA Remote

EXECUTIVE SUMMARY

Results driven Technology Executive with global leadership, architecting cloud-native platforms and leading high- performance engineering organizations across Fortune 500 and global enterprises. Spearheaded architecture and engineering team for a $5B+ broadband business, supporting 9M+ customers, $30M budget, 1B+ API requests annually.

Partners with C-suite to drive multi-year technology investment strategy, drives OKR based planning across cross-functional teams, and leads enterprise Agentic AI and platform modernization as the next frontier of competitive advantage.

CORE COMPETENCIES

Product & Engineering Leadership • Product strategy • API/Microservice • DevOps/DevSecOps • Governance

• Enterprise Architecture • Solution Architecture • Cloud Strategy • IT Strategic Planning

Digital Transformation • Agile/Scrum • TOGAF • ITIL/ITSM • Vendor Management • Budget Management

Executive Stakeholder Management • OKR based planning • Telco OSS/BSS • 5G Broadband • Fiber

Agentic AI • RAG • AI Governance •

TECHNOLOGY SKILLS

AWS • Kubernetes • Lambda • Salesforce • Databricks • Mulesoft

Kafka • GitLab • Redis • Snowflake • MongoDB • Aurora • Java Spring Boot

PROFESSIONAL EXPERIENCE

Head of Architecture & Engineering T-Mobile · Bellevue, WA Nov 2021 – Jul 2026

Senior technology executive accountable for architecture strategy, engineering direction, software delivery, and organizational leadership for T-Mobile's Broadband Innovation, Technology & Engineering division a $5B+ business within

T-Mobile's $81B+ portfolio supporting 9M+ broadband customers nationwide.

Technology Leadership & Business Impact

Spearheaded architecture and engineering strategy for T-Mobile's $5B+ Broadband division directing a solution architecture organization and delivering the cloud-native platform infrastructure that powers digital experiences for 9M+ broadband customers across Consumer, SMB, and Enterprise segments.

Architected and scaled an enterprise API platform processing 1B+ requests annually establishing the foundational digital infrastructure that eliminated channel fragmentation, accelerated time-to-market, and became the reusable backbone for T-Mobile's broadband portfolio.

Drove a high-throughput data platform transformation delivering 80M+ address records processed monthly converting raw network data into real-time customer serviceability intelligence that directly improved acquisition conversion and decisioning accuracy at scale.

Led end-to-end CRM transformation on Salesforce consolidating 10M+ prospects, leads, and marketing campaigns into a unified platform that compressed the sales funnel, improved pipeline visibility, and increased acquisition efficiency across customer segments.

Elevated platform reliability to 99.9% uptime and 90% end-to-end automation eliminating manual operational risk, reducing incident response burden, and redirecting engineering capacity from firefighting to innovation.

Led strategic vendor selection and RFP lifecycle, defining evaluation frameworks, leading build-vs-buy analysis, and securing technology partnerships that aligned platform investment with long-term business & architecture goals.

IT Strategy & Executive Alignment

Shaped T-Mobile's multi-year technology investment strategy for 5G Home Internet and fiber platforms advising VP+ and C-suite leadership on architectural trade-offs, platform funding priorities, and capability sequencing to align technology spend with revenue growth objectives.

Drove org-wide PI planning discipline across engineering and product organizations translating business strategy into quarterly OKRs and committed delivery roadmaps, aligning cross-functional teams across IT, Product, Marketing and Network around shared outcome, optimizing capital allocation, and establishing the operating model.

Established T-Mobile's enterprise AI adoption framework moving AI from an aspiration to an operational discipline by embedding intelligent automation, AI-assisted engineering practices across the broadband technology organization, setting the standard for engineering excellence org-wide.

Engineering Organization & Governance

Built and led a high-performing architecture organization across the Broadband division developing solution and domain architects, establishing clear technical career paths, and creating the cross-functional collaboration model that unified Enterprise IT, Product, and Network Engineering around shared platform outcomes.

Instituted enterprise architecture governance as a strategic function, chairing the Architecture Review Board, defining guardrails and quality gates, and establishing a technology risk framework that ensured security, privacy, and compliance were embedded by design, not added as an afterthought.

Drove measurable improvements in cloud economics and engineering resilience, leading FinOps optimization, DevSecOps transformation, and resilience engineering initiatives across AWS workloads that reduced operational cost over 100K saving and improved system durability across consumer and enterprise platforms.

T-Mobile for Business & Government (TFB)

•Developed the North Star architecture for T-Mobile's B2B and Government segment, designing a highly scalable, available, AWS-native microservice platform with 200+ APIs that enabled enterprise-grade eCommerce and self-service digital journeys for business customers at scale.

•Drove Salesforce platform strategy for TFB's organization leading executive-level architecture assessments to determine platform fit, then designing the end-to-end solution architecture spanning CRM data migration, pre-sales and marketing integration, and customer notification infrastructure, accelerating TFB's go-to-market velocity and seller productivity.

•Led organizational capability uplift across TFB engineering teams instituting reusable API design standards, driving a DevOps transformation that delivered observability and disaster recovery maturity, and governing architecture decisions at VP+ level to ensure alignment with enterprise strategy

Senior Engineering Manager Infosys · Global (North America, Europe, Asia-Pacific) Aug 2009 - Nov 2021

Engineering Organization & Talent Leadership

Built and scaled a global engineering organization of 30+ team members from the ground up establishing hiring standards, career development frameworks, and performance systems that created a pipeline of high-performing engineers and architects capable of delivering digital transformation programs.

Spearheaded $10M+ annual client delivery portfolios owning commercial scope, budget governance, effort estimation, and executive-level negotiations with VP stakeholders when scope, timeline, or investment priorities shifted.

Created the operating model for high-stakes program delivery instituting design governance, risk visibility, and executive reporting cadences that kept $10M+ programs aligned to client business outcomes through weekly, monthly, and quarterly business reviews with Director+ and VP leadership.

Strategic Architecture & Client Executive Leadership

Architected a digital API platform that scaled to 2M+ SMB customers at 99.99% availability a program delivered on time and on budget that became the reference architecture, case study adopted across Infosys's global practice, influencing the technical direction of the business unit.

Won strategic enterprise engagements by leading competitive RFP responses end-to-end translating client business challenges into differentiated architecture blueprints, investment-grade effort estimates, and solution narratives compelling enough to displace incumbent vendors and secure multi-year programs.

Served as Account Chief Architect, led cross-functional go-to-market initiatives with AWS, GCP, MongoDB, and Dynatrace, shaping partner GTM strategy, and representing Infosys as the senior technology authority in executive client conversations with Fortune 500 client leadership.

Established Infosys's architecture thought leadership presence with Fortune 500 clients delivering governance reviews to Enterprise Architecture Councils, developing industry PoVs and reference architectures adopted client-side, and anchoring innovation days that shaped client technology roadmaps and deepened strategic account relationships.

EDUCATION

Bachelor of Engineering (B.E) - Computer Science & Engineering Bharathidasan University

CERTIFICATIONS & CREDENTIALS

TOGAF 9.1 Enterprise Architect The Open Group

Oracle Certified Master Java Enterprise Architect Oracle

Project Management Professional (PMP) PMI

Certified Scrum Master (CSM) Scrum Alliance

Six Sigma Yellow Belt VMEdu Inc

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