Headline

Senior Software Engineer @ Avis Budget Group | Backend • Node.js • Java • Spring Boot • AWS | Distributed systems | AI-augmented dev (Claude, MCP, Agents) | Ex-CRED, Biofourmis

About

Backend engineer (6+ yrs) designing and operating distributed systems at scale — across travel-tech, fintech, payments, and digital health. I turn messy business problems into simple, reliable services, and keep them simple as they scale. Selected impact: - Avis Budget Group — Backend services powering a global mobile app for 10M+ active users across NAM, EMEA and APAC. Independently delivered 5+ high-impact features driving ~15% growth in revenue streams, while mentoring teammates end-to-end and enabling 100% on-time feature delivery across multiple releases. - CRED — Designed microservices for lender integrations, KYC, and repayment journeys inside CRED Cash. Revamped the CKYC onboarding path for a 25% MoM lift in the loan-disbursal funnel, integrated a new lender for an additional 10% lift, and re-architected loan foreclosure to close loans in real-time — cutting support tickets by ~25,000/month. Owned SOPs, runbooks, and Datadog alerting/metrics for operational excellence. - Biofourmis — Worked on "Hospital@Home," a remote patient-monitoring platform. Redesigned APIs to cut server load by 30%, built the inventory-management module for devices and health trackers across hospitals, and shipped multilingual support for global rollout. How I work today: I pair-program with Claude (Sonnet/Opus), Amazon Q, and Kiro — augmented with custom MCP servers — to accelerate module scaffolding, DTO/mapper generation, test authoring, code review, and debugging across a services, while enforcing strict architectural guardrails. Stack: Node.js, Java, Spring Boot, Python Scripting, AWS, Redis, SQL, Datadog, Grafana, ReTool, CI/CD. Domains: Travel & Mobility, Payments, Lending, KYC, Digital Health, IoT data pipelines. Interests: system design, observability, scaling backends, AI-assisted engineering. Outside work I write, mentor engineers on Topmate, and love deep conversations about backends. Always open to connect with engineers solving similar problems.

Location

Bengaluru

AI stack

claude

gemini

hermes agent

kiro

mcp

Amazon Q Developer

Work experience

Senior Software Engineer at Avis Budget Group, Aug 2024 - Present · 2 y 3 mo, Bengaluru, Working on backend services that power Avis Budget Group's global mobile/web services, serving users across NAM, EMEA and APAC. - Designed, developed and optimised multiple backend services powering a global mobile app with 10M+ active users across NAM, EMEA and APAC — ensuring seamless cross-region performance. - Independently delivered 5+ high-impact features contributing to ~15% growth in revenue streams, accelerating market expansion and enhancing customer experience. - Mentored and guided team members through their end-to-end development journey — from onboarding and technical delivery to performance reviews and long-term career growth — enabling the team to achieve 100% on-time feature delivery across multiple releases. - Collaborated with cross-functional teams (Product, QA, Architects) to design scalable backend solutions, reducing system flaws and increasing operational efficiency. - AI-augmented development workflow (Claude, Amazon Q, Kiro + custom MCP servers) for our NestJS + SpringBoot monorepo — cutting scaffolding, DTO/mapper, and test authoring time from hours to minutes while enforcing strict architectural guardrails. - Led team in building AI solution, an AWS Bedrock-powered multi-agent vehicle inspection platform that automated damage detection, repair-cost estimation, and disposal recommendations through a cloud-native architecture leveraging Lambda, API Gateway, S3, and CloudFront, showcasing applied AI, distributed systems, and backend engineering expertise.

Back End Developer at CRED, Jul 2022 - Jul 2024 · 2 yrs 1 mo, Bengaluru, Designed and implemented microservices powering CRED Cash — lender integrations, KYC and repayment journeys. - Designed and implemented microservices to enable seamless lender integration, manage user KYC processes, and enhance the repayment journey within CRED Cash. - Contributed to loan onboarding for CKYC users (addressing reliability issues in OKYC) and authored comprehensive solution documentation — resulting in a 25% month-over-month improvement in the loan disbursal funnel. - Planned and integrated a new lender end-to-end — handling compliance, LMS challenges and system limitations — raising loan disbursements by 10%. - Re-architected the loan foreclosure flow to close loans in real-time instead of waiting for the next billing date, cutting monthly support ticket volume by ~25,000 and improving reliability and user experience. - Implemented multiple operational dashboards and authored Standard Operating Procedures (SOPs) for the Operations team — reducing human error and speeding up resolution of on-call tickets and pagers. - Enhanced incident alerting and built metric-management dashboards on Datadog for services and APIs, improving monitoring and analysis efficiency. - Contributed to the core microservices handling loan disbursement and repayments.

Software Engineer - MTS 2 at Biofourmis, Oct 2020 - Jul 2022 · 1 yr 10 mos, Bengaluru, Core backend engineer on "Hospital@Home" — a platform for monitoring patients remotely across hospital and home settings. - Redesigned core APIs to improve efficiency and reduce server load by 30%. - Built the inventory-management feature to eliminate human error and track medical devices and health trackers across multiple hospitals. - Implemented multilingual support in the application to serve customers across different countries. - Planned, built and architected backend APIs and microservices, owning multiple features end-to-end — from design through deployment and on-call support. - Integrated new medical devices and third-party systems into the existing platform and served as the direct point of contact for QA and other dev teams on fixes and changes.

Software Engineer at INFINO, Apr 2020 - Oct 2020 · 7 mos, Pune District, Backend engineer on "Donut" — a finance-linked card product helping users maximise merchant offers on their linked finances. - Designed and implemented modular data pipelines (ETLs) to sync valid vendor coupons and gift cards on the platform, and to track customer cashback through affiliate marketing links. - Implemented the authorization service, session management and user verification for Donut. - Developed multiple web-scraping scripts to extract offers from different financial services — up to 30% of users benefitted from the best-offer displays. - Wrote testable code to address and handle edge cases, reducing common development mistakes. Role ended as the company wound down due to regulatory changes.

Software Developer at KonnectShift, Aug 2019 - Mar 2020 · 8 mos, Greater Hyderabad Area, Backend engineer on the Product team, working on server-side APIs and IoT-based data pipelines. - Revamped a stalled project by resolving structural issues at both the database and API level. - Followed test-driven development to design, build and architect server-side APIs. - Built and maintained IoT-based data pipelines and developer environments. - Ran POCs to evaluate new technologies and recommend the best fit for specific use cases. - Optimised code and database queries through peer reviews; supported hiring for backend roles.

SDE Intern at Smart Joules Pvt. Ltd., Jan 2019 - Jul 2019 · 6 mo, New Delhi

Education

Bachelor’s Degree, Information Technology, DIT University

High School / Senior High School, Science, kendriya vidyalaya

Public links

github: https://github.com/Tanmay17

medium: https://medium.com/@tanmays321