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Mamata Gelanee

@mamtagelanee

Strategic Lead Engineer shaping high-scale fintech mobile platforms, leading cross-functional teams and applying GenAI to accelerate delivery.

United Kingdom

Message

What I'm looking for

I’m looking to lead fintech/payment product teams building mission-critical mobile systems—owning architecture, security/compliance, and delivery—while using GenAI to streamline the SDLC and help teams ship faster with quality.

I’m a Strategic Lead Engineer with 12 years of experience architecting high scale mobile products and leading cross-functional engineering organisations. I specialize in Fintech & Payment Architecture—especially White Label ecosystems—and I enjoy turning complex domains like Credit, BNPL, and Open Banking into reliable, mission-critical systems.

I’ve led multi-platform teams across Android, iOS, and BFF, owning Payment Modules, Authentication, and Open Banking within large white-label app ecosystems. At NewDayCardsLtd., I introduced an Initiative Framework to decentralize technical discovery, eliminating leadership bottlenecks and speeding time-to-market, while a Total Ownership model helped mobile engineers deliver full-stack features with near-zero defects.

I’m also deeply focused on operational excellence and security/compliance. I’ve managed DAST/SAST workflows (NowSecure) and worked across cryptography and PSD2/SCA/PCI/PII regulations, and I’ve driven measurable outcomes at Curve (scaled to 1M users with 99.9% crash-free rate, improved retention by 6%, and increased developer productivity by 6% through refactoring).

Experience

Work history, roles, and key accomplishments

Current

Lead Engineer

Current

Newdaycards Ltd

Sep 2022 - Present (3 years 9 months)

Introduced an Initiative Framework to decentralize technical discovery and eliminate leadership bottlenecks, significantly reducing time-to-market for a 16-app white-label ecosystem. Architected payments, authentication, and open banking modules (with BFF unification), improved CI scalability to run 45+ modules in parallel, cutting CI costs by 30%, and maintained mobile security posture with zero

Android Kotlin Backend For Frontend (BFF)NowSecure Cryptography & Certificate Pinning

Current

Lead Engineer

Current

New Day Cards Ltd

Sep 2022 - Present (3 years 9 months)

Introduced an Initiative Framework to decentralize technical discovery, eliminating leadership bottlenecks and reducing time-to-market. Architected mission-critical Payments, Authentication, and Open Banking modules for a 16-app white-label platform, moved logic to BFF, and delivered 3+ major full-stack features with near-zero defects.

Authentication BFF Development Android Kotlin Cryptography Mobile Security

Mobile Team Lead

Curve

Apr 2020 - Aug 2022 (2 years 4 months)

Launched Curve Credit (BNPL) and scaled to 1M users with a 99.9% crash-free rate by establishing a standardized architectural blueprint. Drove a 6% retention lift through data-driven features and A/B testing, and increased developer productivity by 6% via legacy refactoring.

Mobile Architecture Android Development Kotlin BNPL Systems A B Testing Refactoring

Android Team Lead

Peaklabs

Oct 2018 - Apr 2020 (1 year 6 months)

Led the development of Rise, a data-driven sleep-health app, managing complex state synchronization and implementing offline-first behavior using Firebase.

Android Kotlin Firebase

Senior Android Engineer

Mastercard

Sep 2016 - Oct 2018 (2 years 1 month)

Engineered a secure Payment SDK for Tap & Pay contactless transactions, implementing hardware-level security with cryptography and digital certificates.

Tap & Pay Cryptography Mobile Security

Education

Degrees, certifications, and relevant coursework

Gujarat Technological University (GTU)

Bachelor of Engineering, Computer Science

2010 - 2014

Grade: 8.6/10 (Distinction) CGPA

Bachelor of Engineering in Computer Science from Gujarat Technological University (GTU), completed from July 2010 to July 2014. Graduated with 8.6/10 (Distinction) CGPA.