Harsh Gaglani

Senior Software Engineer

London, England, United Kingdom7 yrs 11 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Led development of Messenger's encrypted backups user experience.
  • Increased feature adoption from 20% to 80% through strategic experimentation.
  • Built scalable backend services for high-volume logistics operations.
Stackforce AI infers this person is a Backend-focused engineer with extensive experience in B2C messaging and logistics systems.

Contact

LinkedIn

Skills

Core Skills

Messaging And Privacy InfrastructureExperimentation Strategy & Metrics FrameworksDistributed Systems At Billion-user ScaleBackend Engineering

Other Skills

PythonSystem ArchitectureGraphQLMicroservicesLarge Scale DevelopmentTechnical LeadershipUser JourneysA/B TestingSystems DesignExperimentation StrategyFeature AdoptionProduct EngineeringJavaData StructuresAlgorithms

About

Senior Software Engineer with 8+ years building large-scale user-facing product features, privacy-preserving messaging systems used by billions of users globally. At Meta, I lead development of encrypted backups user experience for Messenger, improving feature adoption from 20% to 80% across global user journeys and shaping rollout strategy through experimentation insights and product metrics. My work sits at the intersection of product engineering, distributed systems, and privacy-focused infrastructure across Android, Web, and backend services. I regularly collaborate with product, design, and data science teams to ship adoption-driving experiences at global scale. Core strengths: • Product feature adoption & retention • Messaging and privacy infrastructure • Experimentation strategy & metrics frameworks • Android and backend platform engineering • Distributed systems at billion-user scale • Cross-functional technical leadership Interested in building agent-driven developer workflows, evaluation systems, and experimentation infrastructure for AI-native products.

Experience

7 yrs 11 mos
Total Experience
2 yrs 7 mos
Average Tenure
5 yrs 10 mos
Current Experience

Meta

2 roles

Senior Software Engineer

Promoted

Jul 2021 – Present · 4 yrs 10 mos · Greater London

  • Technical lead for Messenger encrypted backups user experience team, delivering privacy-preserving messaging capabilities and experimentation-driven rollout strategy across global user surfaces to ensure smooth transiotion to e2ee messaging.
  • Tech Lead for Messenger Encrypted Backups, scaling a 13-engineer team and directing execution strategy across privacy infrastructure serving 3.7B users
  • Built experimentation planning and reporting workflows enabling hypothesis-driven launches and telemetry-informed rollout decisions
  • Designed intelligent onboarding flows improving encrypted-backup adoption at planetary scale
  • Increased encrypted-backup retention from 20% → 80% through experimentation-driven lifecycle optimization
  • Migrated network architecture from MSYS to GraphQL improving reliability from 95% → 98%
  • Defined product metrics, OKRs, and technical strategy across eight planning cycles
  • Applied AI-assisted engineering workflows improving execution velocity across encrypted messaging initiatives
  • Influenced roadmap direction using experimentation telemetry and adoption-trend analysis
  • Established structured experimentation planning workflows allowing engineers to design clear experiment plans and publish weekly evaluation insights guiding product behavior and adoption strategy
  • Scaled the Messenger Android encrypted backups team from 0 → 13 engineers, mentoring across performance levels and supporting technical delivery continuity during leadership transitions
  • Conducted 100+ engineering interviews and onboarded new engineers into Meta’s messaging infrastructure ecosystem
PythonSystem ArchitectureMessaging and privacy infrastructureExperimentation strategy & metrics frameworks

Software Engineer

Jul 2020 – Nov 2021 · 1 yr 4 mos · Greater London

  • Delivered web migration flows enabling cross-platform encrypted messaging adoption
  • Led experimentation across five UI variants with zero reliability regressions
  • Built proof-of-concept encrypted backups for Instagram validating infra portability
  • Mentored engineers during high-priority encryption launches and promoted to IC5
System ArchitectureGraphQLMessaging and privacy infrastructureExperimentation strategy & metrics frameworks

Flipkart

Software Development Engineer 1

Mar 2019 – Jun 2020 · 1 yr 3 mos · Bangalore

  • Built distributed backend services powering delivery-time estimation, vendor allocation, and warehouse sourcing
  • Improved fulfilment accuracy across large-scale commerce logistics pipelines
  • Optimised routing infrastructure supporting high-volume vendor decision systems
  • Increased resilience of warehouse sourcing services supporting last-mile delivery operations
  • Strengthened scalability of allocation workflows across national logistics infrastructure
Backend EngineeringMicroservicesDistributed systems at billion-user scale

Morgan stanley

3 roles

Associate Technology

Jan 2019 – Mar 2019 · 2 mos

  • Built observability platform for Sybase and DB2 trading databases improving infrastructure monitoring across financial systems
  • Completed Technology Analyst Program focused on enterprise-scale financial platform engineering
Backend Engineering

Technology Analyst

Aug 2018 – Dec 2018 · 4 mos

Backend Engineering

Technology Analyst Intern

Jan 2018 – Jul 2018 · 6 mos

Backend Engineering

Sprinklr

Software Development Intern

May 2017 – Jul 2017 · 2 mos · Gurugram

  • Worked on back-end(Java) of the Sprinklr app to integrate Zendesk into their system.
  • Using OAuth 2.0 protocol, designed a program to add a Zendesk account into Sprinklr app.
  • Also, designed a program so that tickets and their comments generated on Zendesk account are then shown in Sprinklr account so the user doesn't need to switch the app.
Backend Engineering

Education

Dhirubhai Ambani University

Bachelor of Technology (B.Tech.) — Information and Communication Technology

Jan 2014 – Jan 2018

Shakti Higher Secondary School

High School

Jan 2012 – Jan 2014