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Staff Software Engineer & Tech lead for Service Discovery @Meta (in Core Infrastructure)

Apache Zookeeper.

Software Engineer

Microsoft

Shipped Windows 10 Photos app ( C++ )
- Designed and implemented image analysis pipeline. This pipeline brings together various imaging algorithms together and also supports versioning.
- Performance improvements of as much as 4x across various components of the analysis pipeline.
- Solely architected the app to support multiple windows in the Photos app.
- Integrated edit pipeline from windows 8.1 Photo editor into the viewer to show users enhanced version of their photos.
- Created an internal first party API to allow other apps to use the crop control in the Photos app.
- Worked with multiple teams in windows platform to get new features added to improve Photos app. 
- Mentored junior developers.
- Connected OneDrive album experience with Photos app album experience allowing users to manage or publish albums to OneDrive.
- Added album share so that users can share their favorite albums with friends and family.
- Working on getting more features in for the Photos app.

Software Development Engineer II

Shipped windows raw codec as part of windows update on windows 8.
- Performance improvements on arm 
- Deployment schema for windows update.

Photo Editor - Windows 8.1 Photos app. ( C++ 11, Direct2D, SIMD, XAML, PPL)
- Core member for the design of image editing effect pipeline, rending engine and a variety of edit features.
- Added the direct2d rendering engine in the photo editor.
- Performance improvements for edit features using vectorization and multi core programming.
- Ensured 30FPS on most devices.
- Added image straighten, blemish removal + local area pixel fix engine, revamped crop & selective focus and other contributions

Video Trim - Windows 8.1 Photos app. ( C++ 11, XAML, PPL)
- Implemented the complete video trim feature for the photos app.

Camera - Windows 8.1 Camera App ( C++ 11, PPL, XAML)
- Improved startup performance by more than 50%
- Improved performance of other core scenarios by significant amount.
- Feature contributions.

Stood up a TFS + git based build system for the team.

Software Development Engineer

Georgia Institute of Technology

Worked on web applications for marketing studies. (Php, MySQL)

Web Developer

Added Auto Collage in Windows Photo gallery. (C++, COM)

Software Development Intern

I am a Staff Engineer & Techlead at Meta. I have 
- Mentored many senior & staff engineers and managers. 
- Designed & built multiple systems with critical focus on scalability & reliability. 
- Solved many cross team & organization misalignments with my inter-personal skills. 

I love writing about the importance of soft skills combined with stories from my 10+ years of experience. If this interests you, follow me and subscribe to my newsletter Techlead mentor.

If you are looking for guidance on navigating your career ladder, you can reach out to me.

Raviraj Achar

Socure

- Owning ~40 Batch and Streaming pipelines and data models for Transaction, Vendor, Feedback datasets, ranging from few MBs to tens of TBs, serving 10s  of stakeholders company-wide.
- Redesigned the streaming solution to achieve a 1-minute SLA, processing 50K messages per minute, empowering teams for real-time fraud analysis.
- Actively contributing to company-wide cost reduction efforts, saving $25K monthly through infrastructure and pipeline optimization.
- Leading the team’s GovCloud (FedRAMP) projects, building secure and compliant pipelines to ensure data accessibility for stakeholders.
- Taking an active part in Tech Talks and company Tech Blog.

Skills: AWS (Kinesis, S3, Lambda, SFTP, DynamoDB), Kubernetes, Spark, Airflow, Scala, Python, SQL, Terraform, Snowflake, Delta, Databricks

Senior Data Engineer

Data Engineer

K Health

- Took ownership of existing techstack, revamped tools like Airflow, DBT by introducing coding standards and best practices to enhance efficiency and productivity of the team.
- Migrated from open-source Kafka to GCP PubSub, reducing hundreds of engineering hours spent on maintenance.
- Led data pipeline and modeling for the core event driven dataset, enabling access for teams across growth, marketing, finance, and more.
- Leveraged GCP Audit Logs to analyze usage and resource utilization, reducing BigQuery costs by 70% ($50K monthly).

Skills: GCP, Kafka, Beam, Python, Airflow, SQL, DBT, Terraform

Earnest Research

- Migrated ~10k lines of SQL codebase to Spark (Scala) for 5x faster and 2x cheaper processing.
- Developed data pipelines to process billions of transactional records, unlocking value for the company’s core product.
- Migrated the scheduler from Luigi to Airflow resulting in improved dev experience.
- Designed a new data lake structure for better and efficient consumption of data across teams.
- Led and delivered multi million custom projects successfully.

Skills: AWS (EMR, S3, Lambda, Redshift), Spark, Scala, Python, SQL, Luigi, Airflow, Snowflake

FNDtek

Founded the startup during college.

Worked on a variety of projects for multiple clients from web applications to data analytics.

Founder

Football News Guru

- Manage team of writers and technical staff to oversee day-to-day operations.
- Regular column on the latest football stories.
- Responsible for drafting content strategy for site and writers.
- Site promotion - including search engine and social media marketing.
- Ad Sales.

**Learned off the field strategies from Digital Marketing and Content Writing**

Avanza Solutions

Worked on a E-Banking Product "Ambit" as a full stack engineer.
Developed back end functionalities using Java (Spring MVC and Hibernate) while front end using Angular JS 2.0.

Senior Engineer with extensive experience in leading, designing, and implementing large-scale distributed data systems and services, used by hundreds of internal customers.

Core Expertise:
- Batch and Streaming Pipelines
- Data Quality Frameworks
- Data Infrastructure
- Data Platforms

Core Skills:
Python, Scala, Spark, Beam, Hadoop, Amazon Web Services(S3, EC2, EMR, Athena, Redshift, CloudFormation, DynamoDB, DMS, Step Functions, RDS, Kinesis etc), Google Cloud Platform(Cloud Storage, DataFlow, Composer, BigQuery, etc), Luigi, Airflow, DBT, Kubernetes, Docker, Microservices, Terraform, Databricks, Delta.


Sharing knowledge at www.junaideffendi.com

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Raviraj Achar

Junaid Effendi

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