Pankaj Saini

Senior Software Engineer

Gurgaon, Haryana, India9 yrs 9 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Expert in building scalable distributed systems.
Proven track record in fraud detection and microservices.
Strong background in logistics and food delivery software.

Stackforce AI infers this person is a Backend-heavy Fullstack Engineer with expertise in logistics and fintech solutions.

Contact

pank3992@gmail.com LinkedIn

Skills

Core Skills

Distributed SystemsSoftware DevelopmentBack-end Web Development

Other Skills

AMQPAlgorthimAmazon Web Services (AWS)AngularJSAnimationApache SparkC++DjangoElasticSearchFraud DetectionGitHTMLHadoopJWTJava

About

Experienced Senior Software Engineer with a demonstrated history of working in logistics, telecom and food delivery companies. Skilled in Python, PHP, GoLang, Apache Spark. Strong engineering professional, did bachelors and master from IIT Kanpur.

Experience

Ocrolus

2 roles

Staff Software Engineer

Promoted

Aug 2023 – Present · 2 yrs 7 mos

Built an internal JWT issuer, migrated external API users from Auth0 with zero downtime, and added SSO support with seamless identity linking for enterprise clients via the Ocrolus dashboard.
Improved microservices by standardizing gRPC and Kafka across services, built an event tracer tool for faster debugging, and enabled aggregated webhook support for streamlined integrations.

gRPCKafkaJWTSSOmicroservicesDistributed Systems+1

Senior Software Engineer

Aug 2021 – Aug 2023 · 2 yrs

Fraud Detection Service
Designed and built Fraud Detection V2 from scratch - a core product at Ocrolus.
Integrated with ML service for file tampering detection (FTD) and connected with multiple microservices to fetch capture data and generate native algorithmic signals.
Improved overall performance by pre-computing ML-heavy tasks and boosting parallelism — moved from SQS to Kafka to avoid distributed locks.

ML integrationFraud Detectionmicroservicesperformance optimizationSoftware DevelopmentDistributed Systems

Zomato

SDE 3

Dec 2019 – Aug 2021 · 1 yr 8 mos · Gurgaon, India

Menu Service – managing the restaurant/dishes catalog
Built new features and improved the restaurant menu microservice handling over 500k rpm at peak.
Added support for integrating POS aggregators via REST APIs.
Enabled scheduled ordering and introduced dish templates for better menu flexibility.
Took Dish First View from scratch to go-live within 6 weeks, from ideation to rollout.
Vernacular Service - Enabling Multilingual Experiences
Built the vernacular service from scratch with support for 10+ Indian languages.
Created a pipeline to handle real-time translation/transliteration of app text from multiple sources.

REST APIsmicroservicesreal-time translationmenu serviceSoftware DevelopmentBack-End Web Development

Bharti airtel

Senior Software Engineer

Sep 2018 – Dec 2019 · 1 yr 3 mos · Gurgaon, Haryana, India

Designed a highly scalable distributed system to ingest 20TB+ compressed data (trillion+ records) per day
Build an efficient query engine over a highly scalable distributed object storage (PB scale)
Developed backend to handle regulatory queries and integrated it with querying engine

distributed systemsquery enginedata ingestionSoftware DevelopmentDistributed Systems

Delhivery

Developer

Jul 2016 – Sep 2018 · 2 yrs 2 mos · Gurgaon, India

Visualization and Simulation tool for logistics network (NETPLAN)
Developed a dashboard for strategy/operations team to optimize and reduce the cost of the logistics network
Significantly reduced the time and effort to find out the best possible locality for opening or shifting a facility
Added more than 7 different type of jobs; Package distribution, Facility Planner, Facility finalization for LM and B2B shipments
Wrote a generic framework based on pipes and filter architecture for different kind of jobs; used in 2 other projects
BE: Django, DRF, Redis, PostgreSQL, Elastic Search, Celery, RabbitMq, AWS (S3, SES, Cloudwatch)
FE: AngularJS (v2), jQuery (v1), HTML, CSS, MMI (Map my India, v2), Leaflet (v2), Google Maps (v1), Google Analytics
Shipments Allocation and Routing Tool (FLARE)
Developed a tool to automate the process of allocating shipments between different workers at DC (Van, Bike, 3rd party)
Significantly reduced the time of segregating shipments between different workers; more than 1 hour for large DCs
Formulated the allocation problem into Mixed Integer Linear Programming and implemented it using OR-Tools
Tech: Django, DRF, AngularJS, Redis, PostgreSQL, Elastic Search, Celery, MMI, Leaflet, RabbitMq, OR Tools, AWS (S3, SES)
Customer delivery location (STEER)
Developed an application for customers to mark the delivery location on the map; Implemented using Server-Less Architecture
Wrote a framework in Flask to test lambda function locally; converts client input to API Gateway format before calling the lambda function
Analyzed customer behavior based on the Google Analytics data and published weekly reports to GDrive
Tech: AWS (API Gateway, Lambda, S3, DynamoDB), Flask, JavaScript, jQuery, HTML, CSS, Google Maps, Google Analytics