Atlassian

Principal Engineer

GoDaddy

• Brand Data Integration

Working on integrating the data of brands acquired by GoDaddy into the Central Data Platform. During the integration, proposed, architected and building a Python Library to simplify the integration for upcoming similar projects

- Articles
Co authored a blog on "Layered Architecture for a Data Lake"

Ref: https://www.godaddy.com/resources/news/layered-architecture-for-a-data-lake

Principal Data Engineer

Expedia Group

• Re Architecting Streaming Workflows
With an aim of simplifying and modernizing the Streaming tech stack participated in exploring streaming technologies, creating comparison documentation, and a migration plan.
Tech Stack: Java, K Streams, Springboot

• Hotel Confirmation Email Enhancements
Worked on enhancing the Hotel Confirmation Email to provide traveler's information about the health and safety measurements that the hotel has implemented. We further improved the customer experience by providing the information about the money he saved by booking an Hotrate hotel
Tech Stack: Java, Apache Storm

• Same Day Price Drop Notification
Worked on Same Day Push Notification for Car, where we have to trigger the Push Notification when the price of the Car that customer originally looked at has reduced by X% within the same day of their search but customer haven't booked it
Tech Stack: Java, Apache Storm

Senior Data Engineer

• Building Streaming Pipelines
Currently involved in building a streaming Data pipeline using Apache Spark Structured Streaming, Scala, Cassandra, and AWS Technologies like EMR. This will be utilized in running the Pricing algorithms at scale and near real-time.

• Migration between AWS Account
Designed and Lead the migration of apps/resources between AWS accounts. Initially, we had our stack on a common AWS account, and then as per company policy, we have to move it to a different one.

• 3PI Price Algorithm
Design, coded, and delivered the 3PI price algorithm on Apache Spark which increases the pricing competitiveness of 3PI inventory. We are using enhancement techniques on data points, allowing Expedia to propose competitive 3PI rates.

• Pricing Algorithm
Coded the pricing algorithm on Apache Spark, that will make sure consumer will benefit from the cheapest price while not undercutting hotel prices, enforcing the new strategy proposed and developed by Expedia Group

• Multi-Tier Cancellation
Lead the effort to design, build, test and deliver multi-tiered cancellation policy support for suppliers in Booking Stack.  Suppliers can now support multiple windows with different cancellation rules for a booking which improves customer experience and provides more fine-grain control over financials.

• Partner Onboarding
Participated in designing and building booking, post-booking and async notification support for newly onboarded partners. Async Notification support increases booking success percentage which prevents dollar loss and a better customer experience

Software Development Engineer 2 (Big Data Engineer)

Harnessing my potential in breaking monolithic codebase into microservices and containerized cloud deployments.

• Booking Stack Migration
Involved in designing and migration of billion-dollar booking stack from monolithic chunk to microservices. Worked on the design and development of domain service including performance testing, traffic migration, statistical comparisons. The success rate is ~.72% better in new stack and the success rate of post-booking retrieval is 99.98% which constitutes 49% of entire traffic on booking servers.

• Cloud Migration
With the aim of achieving elasticity of servers and granular investment tracking of infrastructure, participated in making domain services cloud-native and their migration from the data center to AWS. Focussing on hybrid stage challenges e.g. latencies between datacenter and cloud.

• Distributed Caching
To avoid fetching static data from Relational DB while booking the hotel. Proposed, Designed, and Delivered production-ready Redis Cluster. TP99 of data retrieval is ~3ms. Currently serving as SME on the solution.

• Fraud Suspect Booking Handling
Designed and delivered a cloud-native solution to clear Fraud Suspect Hotel Bookings. Booking is either canceled or marked as legitimate within a specified duration. Partners are then notified for legitimate bookings.

Software Development Engineer I

As a JAVA backend developer in the largest travel booking company.I've worked on following JAVA Web Services and features:

•     Booking Search:
Provided solution to partners to search for booking in their hotel chain based on customer details through RESTFul API. This feature ranks top based on its usability. Delivered concept-to-completion web service in <7 months getting a live traffic of ~10TPS. Played crucial role in CI-CD pipeline, preparing build script and load testing.

•     Booking confirmation feature:
Extended Booking Search to add confirmation API, which acts as an acknowledgement of booking. Hence enables us to track that partners are aware of booking done in their hotel. Delivered from scratch in two weeks facing live traffic of ~1TPS.

•     Reconciling Bookings:
Reduced call center volumes and manual work by providing RESTFul API enabling partners to edit bookings as per change in customer stay. Finalized the design and delivered MVP in ~2 months facing live traffic of ~5TPS.Later proposed and delivered RESET functionality, which nullify all changes that have been made on a booking. Thus helps in reverting back erroneous updates on the booking.

Associate Software Development Engineer

Samsung R&D Institute India-Delhi

As a C++ developer in Samsung Research India.I've worked on following:

•	Studying life cycle of Samsung Apps on Smart TV.
•	Checked app compatibilities while porting to new display engine
•	Analysed and provided solutions for crashes while studying the underline webkit engine

Software Engineer II

As a C++ developer in Samsung Research India.My roles and responsibilities were:

•	Studying the display of GUI components on smart TV.
•	Analysed performance improvements while porting GUI library under the wrapper 
•	Support to market issues.

Software Engineer

IEEE Student Branch MANIT

Joint Secretary at SCEECS 2012:
Started a initiative to teach underprivileged kids- Aarambh
Multiple workshops were conducted for each branch (Computer Science, Electronics, electrical)

Chairman

Linux Solutions

Training done in Linux System & Network Administration

Software Engineering Intern

Hi, I'm Kamran Ali.

I have ~11.5 years of experience in Designing and Building Transactional / Analytical Systems.

I'm actually getting paid while pursuing my Hobby and its already been a decade.

In my next decade, I'm looking forward to guide and mentor engineers with experience and resources

For FREE engineering advice, resources and opinions visit my blog http://atech.guide and FOLLOW me on LinkedIn

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