Aug 2021 – Nov 2023 · 2 yrs 3 mos · Hyderabad · Hybrid

• Rearchitected a central view to track invoice states, achieving a 90% SLA for invoice payments, improving
• payment accuracy and identifying and resolving bottlenecks.
• Developed a rule engine to automate defect tagging in disputed invoices, converting ETL queries into a
• domain-specific language (DSL). Introduced a self-serve UI allowing customers to configure rules independently enhancing efficiency and standardization resulting in 30% increase in auto resolution.
• Took ownership of the entire Rule Engine project from concept clarification to HLD, LLD, and implementation. Collaborated closely with customers to understand pain points, scheduled regular demos to gain early feedback, ensuring timely delivery, trust-building, and effective communication.
• Recognizing the need for efficient resource management, introduced logic to auto-terminate idle EMR clusters reducing 23% of costs.
• Dedicated time to mentor junior developers, conducting code reviews, actively participating in engineering excellence tasks to maintain high code quality standards and promote professional growth within the team.

Nov 2020 – Jul 2021 · 8 mos · Noida, Uttar Pradesh, India

• Authored an integration framework to seamlessly integrate APIs with multiple insurance partners. Reduced development time by 60% and on-boarded 12+ insurance partners within a span of 2 Months.
• Developed an on-boarding engine to streamline the merchant on-boarding process, allowing merchants to continue their journey from where they left off resulting in improved merchant adoption on the Paytm for Business platform.

Sep 2018 – Nov 2020 · 2 yrs 2 mos · Noida, Uttar Pradesh, India

• Led efforts to enhance CP ( Cancellation Protect ) for movies and flight with a logic to block and limit instances of CP, saving Paytm significant costs on fraud claims and reducing fraudulent activity by 25%. Also implemented demand-driven pricing strategy for CP based on travel/movie and booking time, resulting enhancing user convenience and justifiably.

Jun 2016 – Aug 2018 · 2 yrs 2 mos · Okhla

• Created a robust 2-Factor Authentication (2FA) system for B2B, spanning CLI terminal and web Auth. Created an SDK for seamless web login integration, reducing unauthorized access attempts by 40%.
• Led the creation of a adaptive Payment Gateway with PayPal and CCAvenue integrations. This resulted 20% increase in successful transactions through automatic gateway selection based on the user's country.

Aug 2015 – Mar 2016 · 7 mos

• Back end development in CodeIgniter.

May 2015 – Jun 2015 · 1 mo · Kolkata

• Assisted team in formulating proposals and gained understanding of business analytics.

May 2014 – Jul 2014 · 2 mos · Kolkata, West Bengal, India

• Study and implementation of WEP and WPA attacks and their variants.