Sahil Singla

CEO

West Delhi, Delhi, India16 yrs 8 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Led a team of 200+ engineers at Amazon.
  • Redefined External Fulfillment processes globally.
  • Mentored 300 engineers across multiple teams.
Stackforce AI infers this person is a Backend-heavy Fullstack Engineer with expertise in E-commerce and Fintech.

Contact

Skills

Core Skills

System ArchitectureApi DevelopmentBig DataBack-end Web DevelopmentTeam ManagementReact.jsRuby On RailsVisual C#Asp.net

Other Skills

.NETAJAXAlgorithmsAmazon Web Services (AWS)B2C e-commerceC++Code ReviewCore JavaCouchbaseCross-functional Team LeadershipData StructuresDatabasesDesign PatternsDistributed SystemsDropwizard

About

Experienced Engineering Leader with a proven track record in building scalable systems across e-commerce, event management, and travel domains. My expertise includes re-architecting critical platforms, driving automation, and enhancing personalization to deliver impactful business outcomes. Skilled in leading cross-functional teams, optimizing processes, and developing high-performance solutions, I contribute to operational efficiency, customer engagement, and revenue growth. Currently, I am a Principal Engineer at Amazon, redefining External Fulfillment @ Amazon globally with a team of 200+ engineers. Additionally, I am an innovator, investor, and startup mentor, passionate about leveraging my expertise, creativity, and technology to drive innovation and create value.

Experience

Amazon

2 roles

Principal Engineer

Promoted

Mar 2023Present · 3 yrs · Gurgaon, Haryana, India · On-site

  • As a Principal Engineer at Amazon, I am currently redefining External Fulfillment globally, focusing on Amazon's EasyShip and MFN (Merchant Fulfilled Network) programs globally. Leading a team of 200+ engineers, I am driving the design and implementation of scalable solutions that empower sellers and improve the customer experience across fulfillment channels both locally and globally (export). This involves integrating various systems, streamlining cataloging, discovery, fulfillment, and creating efficient pathways for third-party vendors to fulfill orders seamlessly at Amazon scale.
PaymentsSystem ArchitectureAPI DevelopmentStrategic PlanningCross-functional Team LeadershipB2C e-commerce+19

SDE3

Sep 2018Mar 2023 · 4 yrs 6 mos · Gurgaon, Haryana, India · On-site

  • I envisioned and led consensus on the funding and delivery of Veritas, Amazon's operational data store (ODS) for global finance back-office systems processing invoices worth $200B+. By integrating 40+ legacy finance systems spanning 20+ years across organizations and enabling near real-time collection of lifecycle events into an immutable ledger, I streamlined reporting, auditing, and provided a consistent backend for both internal and external customers. This initiative paved the way for securing funding for a 30+ engineer team over 5 years, focused on converging multiple siloed, duplicate systems by decoupling operational use cases from transactional systems. Additionally, it contributed to a 50% reduction in reconciliation efforts and the delivery of operational tooling with GraphQL-backed Veritas endpoints.
  • In addition to leading the Veritas initiative, I mentored 300 engineers across 10+ cross-functional teams within the organization, spanning Payroll, GREF, Accounts Receivables, and Payables. Through this mentorship, I helped guide teams in developing scalable solutions, promoting best practices, and driving collaboration across various finance and operational systems, further ensuring the success and alignment of Veritas with broader business goals.
PaymentsBig DataSystem ArchitectureAPI DevelopmentStrategic PlanningCross-functional Team Leadership+18

Makemytrip.com

Senior Principal Software Engineer

Apr 2016Sep 2018 · 2 yrs 5 mos · New Delhi Area, India · On-site

  • At MakeMyTrip, I spearheaded the re-architecture of the Common Connector Module to integrate with Global Distribution Systems, tackling challenges in managing content, availability, pricing, and booking across multiple hotel suppliers. This re-architecture streamlined the integration process, reducing supplier onboarding time from 2 weeks to just 3 days and significantly enhancing system scalability. Additionally, I designed and implemented orchestrator services to optimize backend operations, ensuring high availability and reliability for the hotel booking ecosystem. These advancements boosted operational efficiency and accelerated supplier integration timelines.
  • To enhance customer experience beyond static landing pages, I designed and developed "Cosmos," MakeMyTrip's personalization engine. Cosmos became the core of MMT's ecosystem in 2017, driving sales, personalized recommendations, upselling, and cross-selling across all lines of business, contributing to a 3% increase in GMS. The system was extended to deliver personalized notifications via SMS, app alerts, and emails, ensuring consistent communication across channels. This architecture leveraged multi-layered user, cohort, and source-destination caches to achieve low latency (P99: 450ms) despite relying on high-latency APIs for hotels, flights, and holiday packages (P95: 7 seconds).
Back-End Web DevelopmentSpring BootSystem ArchitectureAPI DevelopmentStrategic PlanningProduct Road Mapping+11

Studypad

Engineering Manager

Aug 2015Apr 2016 · 8 mos · Delhi · On-site

  • In this role, I managed a team of 20 (10 developers, 5 QA professionals, and 5 web developers), ensuring seamless collaboration and delivery of projects. I took ownership of the architecture and scaling needs for both production and staging environments, addressing performance challenges by implementing caching for static resources and optimizing database interactions to eliminate redundant calls. This significantly improved system efficiency and user experience.
  • A key achievement was the development and launch of a Classroom Teacher Dashboard, enabling educators to track and analyze student progress effectively. Additionally, I automated the elastic scaling and downscaling of AWS servers by analyzing historical trends, which reduced operating costs and minimized manual overhead. To streamline server management, I integrated Slack-based scripts, allowing commands like "add x servers" or "remove x servers" with validation for capacity limits.
  • To enhance operational visibility, I worked with the team to delivery ELK stack, simplifying issue tracking and resolution processes.
API DevelopmentStrategic PlanningProduct Road MappingTeam ManagementProblem SolvingUX Research+7

Cvent

Senior Software Engineer

Feb 2014Aug 2015 · 1 yr 6 mos · Delhi · On-site

  • Designed and developed a self-service survey reporting platform, utilizing React JS, Java, SQL Server, and Couchbase, enabling clients to generate reports autonomously.
  • Created and launched a DIY eventing platform to streamline event lifecycle management, empowering users to manage and customize event websites with landing page, ticketing, invitation emails and reporting end-to-end.
Spring BootAPI DevelopmentReact.jsJavaCouchbaseUser Experience (UX)+1

Limeroad.com

Senior Software Engineer

Nov 2013Feb 2014 · 3 mos · Delhi · On-site

  • Joined LimeRoad, a discovery-based apparel e-commerce startup, where the team was working with multiple technologies (Java, Ruby on Rails, and PHP). In just two months, I redefined the team’s strategy from an open-ended discovery platform to a category-based discovery platform. This strategic shift streamlined product discovery and improved user engagement, leading to a 50% growth in sales. I worked closely with cross-functional teams to implement this change, optimizing system integration and performance across diverse technologies.
API DevelopmentPHPJavaUser Experience (UX)Ruby on Rails

Infibeam.com

Senior Software Engineer

May 2010Nov 2013 · 3 yrs 6 mos · Greater Delhi Area · On-site

  • Joined Infibeam, an e-commerce startup, to automate manual processes across catalog feed processing, inventory management, and warehouse operations. With no product managers, I independently developed a deep understanding of existing systems (Java and Ruby on Rails) and business requirements. My contributions led to the creation of critical systems that significantly improved operational efficiency (details below). I played a key role in scaling the engineering team from 1 (myself) to 15+ developers.
  • Warehouse Management Systems:
  • Designed and developed inbound scanning, racking, picking, and packing systems, improving goods reconciliation accuracy from 93% to 99%.
  • Procurement & Finance Optimization:
  • Built a procurement tool integrated with catalog and ordering systems to track supplier price variances and performance. Added finance functionalities to track payments against invoices, improving payment accuracy by 2% and resolving 7% of pricing issues.
  • Logistics Platform Development:
  • Developed a Logistics Platform as a Service (PaaS), onboarding Infibeam.com as a client and reducing logistics costs by 18%. Integrated features like automatic routing, shipment tracking, and Google Maps for optimized routes, with performance-based package allocation and external logistics partner integration.
  • E-commerce Automation:
  • Created an automatic feed parser, reducing processing time from 2 days to 10 minutes and feed processing errors by 90%. Developed a real-time order distribution system to optimize allocations across warehouses. Improved search engine relevance by enhancing SOLR with click-through rates and conversions.
  • Designed an inventory management system and launched a next-day delivery program in 10 cities, driving a 9% growth in orders. Implemented a price comparison engine for dynamic pricing, contributing to a 7% growth in orders.
API DevelopmentTeam ManagementCore JavaJavaUser Experience (UX)Elasticsearch+3

Indus valley partners

Associate Software Engineer

Jul 2009Apr 2010 · 9 mos · Greater Delhi Area · On-site

  • Developed a multithreaded workflow based reporting system for a US based Hedge Fund to analyze trading activities for business reporting.
Visual C#SRSSSQL ServerASP.NETMultithreadingSISS

B-core software pvt. ltd.

2 roles

Intern

Dec 2008Jan 2009 · 1 mo · Greater Delhi Area · On-site

  • Researched, Developed and Published Panoramic Image Stitching Algorithm of static and dynamic images/scenes from a video.
  • Details: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&isnumber=5273826&arnumber=5273843&count=156&index=144

Intern

Jun 2008Jul 2008 · 1 mo · Greater Delhi Area · On-site

  • Contributed in optimizing image (Colored QR Code) to text extracting solution for Auto Recognition of employee barcodes from live streams.
  • Details: http://www.colorbit.jp/en/colorbit

Education

Netaji Subhas Institute of Technology

B.E.

Jan 2005Jan 2009

V.V.D.A.V. Public School

10+2 — Science

Jan 1991Jan 2005

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