Headline

Senior Software Engineer @Mastercard | Cryptographic Security | Identity and Access Management | Key Management + PKI | MFA & Risk-Based Authentication | Distributed Systems

About

Senior Software Engineer at Mastercard working on cryptographic security and identity platforms—key lifecycle management, PKI/PKCS certificate systems, and enterprise authentication/authorization. Specialties: MFA (TOTP, biometrics), risk-based authentication & user risk profiling, secure service design, and distributed data services (replication across relational/non-relational stores). Tech: Java/Spring Boot, Azure/AWS, MongoDB/Cosmos DB/Postgres, Jenkins, Dynatrace. I’m looking to grow into a Lead Software Development Engineer role by owning larger platform initiatives, driving architecture decisions, and influencing engineering practices across teams.

Location

Pune/Pimpri-Chinchwad Area

AI stack

codex

opencode

Work experience

Sr. Software Development Engineer at Mastercard, Aug 2022 - Present · 4 yrs 1 mo, Pune District, Maharashtra, India, • Designed and developed cryptographic security services focused on key lifecycle management and certificate systems (PKI/PKCS). • Built and enhanced organization-level authentication and authorization capabilities with strong reliability and security posture. • Specialized in multi-factor authentication flows including TOTP and biometric authentication, and contributed to risk-based authentication decisioning using user risk profiling. • Developed shared platform services and patterns for distributed data—replication strategies across relational and non-relational databases. • Delivered end-to-end ownership: design, implementation, debugging, and production support; deep-dive troubleshooting using observability and network/protocol analysis (Dynatrace, Wireshark). Tech: Java, Spring Boot, Azure/AWS, MongoDB/Cosmos DB/Postgres, Jenkins, Dynatrace.

Software Development Engineer at Mastercard, Jul 2019 - Aug 2022 · 3 yrs 2 mos, Built backend services in Java/Spring Boot supporting authentication/authorization and platform security capabilities. • Contributed to shared services and reliability improvements, including distributed data patterns and operational hardening. • Collaborated with cross-functional teams to deliver secure, maintainable, production-ready systems. Tech: Java, Spring Boot, (add any older stack you used then).

Visiting Research Assistant at University of Groningen, May 2018 - Jul 2018 · 3 mos, Nihenborgh, Groningen, Netherlands, * Developed and modeled MEMS flow sensors, focusing on accuracy, stability, and robustness under real flow conditions. * Built numerical and computational models to analyze sensor dynamics and flow–structure interaction. * Implemented simulation codes to ensure sensors avoid resonance due to Vortex-Induced Vibrations (VIV). * Applied signal processing and frequency-domain analysis to improve flow characteristic estimation. * Emphasized software-driven sensor modeling, linking physical design, vibrations, and measurable outputs for reliable data extraction.

Visiting Research Assistant at University of Alberta, May 2017 - Aug 2017 · 4 mos, Greater Edmonton Metropolitan Area, * Worked on a Flywheel Energy Storage System (FESS) concept for railway regenerative braking, enabling recovery of kinetic energy instead of dissipation as heat. * Performed vibration analysis of high‑speed rotating masses to assess dynamic behavior and structural stability. * Focused on fracture mechanics, analyzing crack initiation, propagation, and critical failure thresholds in flywheel components. * Analyzed vibration signatures from rotating systems to identify early fault indicators. * Developed approaches for predictive maintenance, enabling early warnings and initiation of safety countermeasures in FESS deployments. * Emphasized a data‑ and sensor‑driven reliability framework for safe operation of high‑energy rotational storage systems.

Visiting Researcher at UNSW Australia, Jun 2016 - Aug 2016 · 3 mos, Greater Sydney Area, * Conducted research on naval ship armouring and crash‑worthiness for freights, warships, aircraft carriers, and submarines as to improvise crashworthiness and armouring. * Studied progressive failure mechanisms in crash‑worthy and impact‑resistant structures under extreme loading conditions. * Focused on energy absorption, structural degradation, and controlled failure modes to enhance survivability and safety. * Developed and optimized crash‑worthy structural designs using predictive Finite Element Analysis (FEA). * Performed high‑fidelity explicit dynamic simulations in LS‑DYNA, modeling impact, blast, and collision scenarios. * Leveraged supercomputing/HPC resources to run large‑scale nonlinear simulations for design validation and optimisation. * Applied simulation insights to improve structural integrity, damage tolerance, and failure predictability in naval platforms.

Autonomous Ground Vehicle Research Group, IIT Kharagpur at Autonomous Ground Vehicle Research Group, Feb 2015 - Aug 2022 · 7 yrs 7 mos, Kharagpur I, India, * Designed and analyzed steering column, chassis, and suspension systems with a focus on vibration behavior and NVH performance. * Integrated inertial and vibration sensors and implemented Python-based FFT and spectral analysis for modal identification and tuning. * Performed structural vibration and vehicle dynamics modeling to study resonance, stability, and system coupling. * Analyzed BLDC motor and controller dynamics, linking torque ripple and excitation sources to vehicle-level noise and vibration. * Developed advanced control strategies for active noise and vibration reduction in autonomous vehicle platforms. * Dynamically calibrated sensor mounting systems to improve observability, data quality, and measurement stability. * Emphasized a coding-driven workflow, connecting mechanical design, signal processing, and control implementation.

Education

Btech and Mtech, Naval Architecture and Marine Engineering, Indian Institute of Technology, Kharagpur

Minor, Mechanical Engineering, Indian Institute of Technology, Kharagpur