Parvez Hassan

CEO

Delhi, India9 yrs 5 mos experience

Most Likely To SwitchAI ML Practitioner

Key Highlights

Led a team of 20+ backend engineers.
Built scalable systems handling billions of requests.
Contributed to impactful open-source projects.

Stackforce AI infers this person is a Backend Technical Architect with expertise in SaaS and Open-Source Development.

Contact

parvez.hassan@olx.in LinkedIn

Skills

Core Skills

Back-end Web DevelopmentProject ManagementMicroservicesOpen-source DevelopmentFull-stack DevelopmentStand-up Comedy

Other Skills

AI AgentsAWSAWS LambdaAgileAirflowAmazon BedrockAmazon Web Services (AWS)AnalyticsAndroidAndroid DevelopmentAngularJSApache KafkaApache SparkArtificial Intelligence (AI)BFF Service

About

Hands-on Backend Technical Architect at OLX | 8+ Years Building Scalable Distributed Systems Experienced polyglot developer building scalable, high-performance backend systems with Golang, Java, SpringBoot, Postgres, MongoDB, REST APIs, AWS, and Kubernetes. Passionate about applying XP, TDD, DDD, Clean Code, and Agile practices. Leading AI initiatives at OLX India — focusing on GenAI ecosystems, agentic workflows, and prompt engineering. Beyond coding, I contribute actively to: * Project RoadMaps & OKR Plannings * Team Management * Infrastructure & CI/CD * Open Source Projects * Testing & Automation * Hiring, Training & Mentoring * AI & Data Engineering * Tech Workshops * Blockchain Projects --------------------------------------- For Standup Comedy Related Information - YouTube - https://youtube.com/@ParvezHassan Instagram - https://www.instagram.com/_parvezhassan/

Experience

9 yrs 5 mos

Total Experience

3 yrs 11 mos

Average Tenure

6 yrs 5 mos

Current Experience

Olx india

3 roles

Technical Architect - Backend

Promoted

Apr 2024 – Present · 2 yrs 2 mos

Working as a part of the OLX India team as a Technical Architect -Backend (Chapter Lead).
► Hands-on Backend Architect, leading a team of 20+ backend engineers, managing 70+ microservices serving over 33 million MAU.
► Planning the Backend Roadmap and OKRs focused on Innovations, Cost optimisation, Quality & Operational improvements. Crafting engineering strategies to solve design challenges and drive sustainable growth.
► Building AI systems at OLX India, with a focus on designing & developing efficient
LLM-powered services, multi-agent ecosystems, prompt engineering frameworks, &
foundational components for scalable AI infrastructure.
► Built a highly scalable Media Server from scratch, handling over 30+ billion requests monthly. Providing real-time, dynamic image processing like watermarking, and resizing. Saving over $150,000/yearly.
► Built an in-house event analytics system from scratch, with highly performant, scalable, innovative & cost-effective architecture, providing savings of over $150,000/yearly.
► Developed an In-House Logging Platform built from Scratch with ClickHouse & Grafana. Migrated from NewRelic to in-house platform, providing total savings of over $250,000/yearly.
► Created and executed training programmes for Technology Interns.
► Built OLX India Technology Blog, to contribute to the tech community & build the OLX Tech Brand.

Amazon Web Services (AWS)GrafanaClickHouseProject ManagementBack-End Web DevelopmentSystems Design+2

Lead Software Engineer

Promoted

Apr 2022 – Mar 2024 · 1 yr 11 mos

Working as a Lead Backend Engineer at OLX Autos.
► Built a highly scalable Media Server from scratch, handling over 30+ billion requests monthly. Providing real-time, dynamic image processing like watermarking and resizing. Saving over $150,000/yearly.
► Supported in the massive migration of 200+ OLX Services, Cloud Components, Configurations & Data from the OLX Group ecosystem to separate business entities like OLX India, OLX Indonesia.
Inventory Management System -
► Led a team to build OLX’s Inventory Management System (IMS), enabling the shift from ad-based to inventory-based transactions.
► Integrated with legacy systems using ACL and Gateway layers.
► Applied TDD, DDD, and Clean Code principles throughout.
Other Contributions -
► Maintained and enhanced OLX Monetisation systems (ad packages, auto-boost, featured ads, payments, invoicing).
► Improved time-to-market by streamlining development processes.
► Mentored junior engineers and collaborated across teams for faster feature delivery.

KubernetesAmazon Web Services (AWS)Domain-Driven Design (DDD)MicroservicesPostgreSQLS3+7

Senior Software Engineer

Jan 2021 – Mar 2022 · 1 yr 2 mos

Working as a Senior Backend Engineer in the OLX Autos team.
Dealer Gateway
► Owned and scaled the BFF (Backend-for-Frontend) service in Go, handling client interactions across Android/iOS/Web for 12+ countries.
► Reduced system-generated traffic by 85%, boosting auction performance by ~90% and saving ~$15K/year.
► Improved code modularity with decoupled components for long-term maintainability.
► Created an open-source Go library to auto-generate API documentation from code.
Value-Added Services (VAS)
► Designed and built a MicroService to manage dynamic VAS products using a real-time rule engine.
► Successfully launched MVP in Mexico and Chile.
Tech Stack: Go, Java, Postgres, MySQL, AWS

WebSocketKubernetesAmazon Web Services (AWS)Domain-Driven Design (DDD)New RelicSpring Boot+8

Thoughtworks

2 roles

Senior Consultant

Sep 2020 – Jan 2021 · 4 mos

► Built the next-gen data platform for a leading US Healthcare Insurance Company. Which is used by different medical providers across the country.
► Build APIs using SpringBoot framework, worked on data aggregation and ingestion using spark data pipelines.
► Implementing Authorization for different sets of data access across users, generating health reports, building dashboards and KPIs, and exporting functionalities.
Tech Stack - Java, SpringBoot, Scala, Angular JS, Microsoft SQL Server

Full-Stack DevelopmentSpring BootApache SparkJavaScalaREST APIs+2

Consultant

Jan 2017 – Sep 2020 · 3 yrs 8 mos

► Built a complex distributed platform for one of the leading out-of-home media companies in the UK. Which included inventory management and optimization aspects.
► The project included micro-services-based architecture, DS algorithms, scheduled jobs, and a pretty-looking frontend.
► Made use of Linear Programming(GLPK Library), Genetic Algorithm, and Go Lang in the backend backed by AWS services and Airflow.
► Worked with a number of AWS services - Lambda, SNS, SQS, ECS, and S3.
► Owned features like Inventory management, asset syncing jobs, order creation, etc
► Contributed across Backend, Frontend, Infra, Testing(Unit, Integration, Contract, Functional, E2E tests).
Tech Stack - Go, MongoDB, Python, AWS, React.js

PythonRedux.jsFull-Stack DevelopmentDockerAmazon Web Services (AWS)New Relic+7

Open source projects

Open Source Developer

Jan 2020 – Present · 6 yrs 5 mos · Remote

As a passionate open-source creator and contributor, I’ve built and actively maintained several impactful projects:
► go-swagger3 – A modern Swagger 3.0 implementation for Go, designed for simplicity and performance. Gained 130+ GitHub stars and 20+ forks in its first year.
► log4error – A lightweight Java library that optimises log verbosity by selectively printing info logs only during error scenarios.
► ai-code-review-gitlab-plugin - A lightweight plugin tool for inline code review in GitLab MRs with AWS bedrock, Gemini or OpenAI Models.
► java-service-template-clean-architecture - Boilerplate project for Java Spring Boot Based on Clean Code Architecture.
► AssertX - A modern and powerful API testing framework built using Cucumber and Java.
I actively maintain these libraries by addressing issues, reviewing pull requests, and shipping new features. I’m also a regular contributor to the broader open-source ecosystem, collaborating with developers and driving improvements across community projects.

Github ActionsJavaGoOpen-Source DevelopmentSoftware Architecture

Self employed

Standup Comedian

Jan 2017 – Jan 2017 · 0 mo · India

Been doing standup for over 4 years now. I started telling jokes on stage back in 2017.
Since then I have regularly performed at comedy clubs like Canvas Laugh Club, The Laugh Store, Playground Comedy Studio, Akshara Theatre, Central Comedy Club, Comedy Store London, etc.
I have also performed at various corporate, and college events. I was also a signed in-house comedian for the Canvas Laugh Club.
In 2019 uploaded my first standup video on YouTube, which collected over 1 million views in just two weeks and currently has more than 3 million views. And the channel has over 45K subscribers just with one video.

Improvisational ComedyStand-up ComedyWriting