Advertising Measurement
Attribution, conversion signals, optimization and privacy-aware measurement systems.
Engineering & Technology Leadership
Arjun Mullick
I’m an engineering leader with more than 15 years of experience building and leading high-scale systems across Meta, Amazon, Audible and A9. My work spans advertising measurement, distributed systems, digital commerce, personalization and privacy-aware infrastructure.
About
Engineering leadership grounded in scale, reliability and trust.
I lead engineering teams working across advertising technology, digital commerce, personalization, search and cloud infrastructure. At Meta, my current focus is advertising measurement, attribution and privacy-aware systems.
Before Meta, I spent more than a decade at Amazon, Audible and A9, progressing from hands-on engineering to multi-team leadership. I write about resilient storage, sustainable software, cloud optimization and the engineering decisions behind dependable systems.
Industry Impact
Areas of expertise
My work connects data signals and infrastructure with reliable customer experiences and measurable business outcomes.
Digital Commerce
Ordering, subscriptions and dependable customer experiences for global demand.
Personalization
Real-time targeting, recommendations, search and experimentation.
Distributed Systems
Storage, event processing, availability and resilient platform architecture.
Experience
From hands-on engineering to multi-team leadership
I have built and led systems across advertising, commerce, personalization, search and enterprise software.
Meta
Engineering ManagerI lead engineering work across advertising attribution, experimentation, optimization, events infrastructure and privacy-aware measurement.
Amazon
Engineering ManagerI led teams responsible for digital ordering, subscriptions, event messaging, privacy compliance and service reliability.
Audible & Amazon
Director / Senior EngineerI worked across digital shopping, search and discovery, real-time targeting, recommendations and experimentation.
Amazon
Software Development EngineerI built digital commerce, personalization and platform capabilities for content experiences and devices.
Infosys
Systems EngineerI began my career building enterprise software using social networking, digital coaching and rules-based platforms.
Publications
Selected practitioner publications
I write about storage, cloud infrastructure, sustainability, experimentation and dependable systems for engineering audiences.
InfoQ and DZone
InfoQ
Ransomware-Resilient Storage: The New Frontline Defense in a High-Stakes Cyber Battle
Read article ↗DZoneAI/ML-Based Storage Optimization: Training a Model to Predict Costs and Recommend Configurations
Read article ↗DZoneAutomating Storage Tiering and Lifecycle Policies in AWS S3 Using Python (Boto3)
Read article ↗DZoneBenchmarking Storage Performance (Latency, Throughput) Using Python
Read article ↗DZoneDesigning for Sustainability: The Rise of Green Software
Read article ↗Scholarly authorship
Journal of Physics: Conference Series 755 (2016)
View publication ↗Nonlinear Dynamics of Bimodality
arXiv:1205.2314 (2012)
View publication ↗Dynamics of Bimodality in Vehicular Traffic Flows
DEV Community
DEV Community
Automating Storage Tiering and Lifecycle Policies in AWS S3 Using Python Boto3
↗ Read articleDEV CommunityScaling and Monetizing Amazon Through Experimentation
↗ Read articleDEV CommunityMonitoring and Analyzing Cloud Storage Costs
↗ Read articleDEV CommunityDesigning for Sustainability: The Rise of Green Software
↗ Read articleDEV CommunityAI/ML-Based Storage Optimization
↗ Read articleDEV CommunitySecurely Accessing and Managing AWS S3
↗ Read articleDEV CommunityBenchmarking Storage Performance: Latency & Throughput Using Python
↗ Read articleDEV CommunityWhat Startups Can Learn from Hackathons — Lessons from ReverieHacks
↗ Read articleDEV CommunityFive Trends I Saw Judging the NovaSpark Pitch Competition
↗ Read articleDEV CommunityEmpower Hacks 3.0: Why Social Impact Drives Innovation
↗ Read articleMedium
Professional Service & Memberships
Peer Reviews
I contribute to engineering and research communities through conference peer review, technical manuscript review and professional membership.
2025 IEEE 1st International Conference on Materials, Robotics & Automation, Computer and Control (ICMRACC 2025)
3rd International Conference on Intelligent Systems, Advanced Computing and Communication (ISACC 2025)
Latency by Pekka Enberg — Manning Publications
Systems Programming with Zig by Garrison Hinson-Hasty — Manning Publications
I was elevated to Senior Member grade in 2025.
I was elected Fellow of the Institution of Electronics and Telecommunication Engineers in 2025.
Speaking & Judging
Industry and community engagement
I share my experience through invited talks, workshops, hackathon judging and technical evaluation.
View my Sessionize speaker profile ↗NovaSpark Pitch Competition
Selected to evaluate startup pitches from young innovators based on innovation, impact, creativity and feasibility.
View event ↗NovaSpark Pitch Competition
Hackathon judging and a session on distributed cloud storage.
Cornell University — ACERT and Signal Science Lab
Presented Distributed Storage and Cloud Computing at the National Biomedical Resource for Advanced ESR Spectroscopy.
Watch full seminar ↗DragonHacks 2025
Reviewed submissions for technical execution, innovation and potential impact.
Empower Hacks 3.0
Led an accessible AI workshop during the opening session and evaluated social-impact projects.
Watch opening session ↗Tech Innovation for Good Hackathon
Evaluated technology-for-good projects and presented a session on AI vector databases.
AlgoFest Hackathon
Evaluated algorithm-focused projects across real-world technology applications.
View event ↗ReverieHacks 2025
Reviewed student projects across AI/ML, software, applications, embedded systems and social-impact innovation.
View event ↗Telsem Hack 2025
Evaluated high-school technology projects for creativity, originality, design, practical value and social impact.
View event ↗Coaching & Mentorship
Helping peers and industry leaders move forward
I offer free coaching to engineers, peers and industry leaders because mentorship is a personal passion and one of the ways I give back to the professional community.
Volunteer coaching · No fee100sof professionals supported in earning interview opportunities
I do not provide this as a paid service. I volunteer my time to help people communicate their impact clearly, approach system design with structure and prepare for engineering and leadership interviews with confidence. My guidance draws on years of building teams, evaluating engineering talent and supporting the growth of other technology professionals.
Engineering leadershipSystem designInterview strategyCareer storytelling
Connect with me about mentorship ↗Professional, editorial and speaking inquiries
Connect with me to discuss distributed systems, advertising measurement, digital commerce, personalization or engineering leadership.
Connect on LinkedIn ↗