Hrittik Bhattacharjee

Co-Founder

Lisbon, Portugal6 yrs 6 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Led the development of a scalable LMS for over 5k students.
  • Expanded e-commerce business into SE Asia and UAE markets.
  • Architected event-driven services for high-availability applications.
Stackforce AI infers this person is a Fullstack Developer with strong expertise in EdTech and Cloud Infrastructure.

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Skills

Core Skills

Google Cloud Platform (gcp)React.jsAwsJuceFfmpegNestjsDockerJavascriptWeb Application SecurityNetwork SecurityEthical HackingInformation Security

Other Skills

AlgorithmsAmazon Web Services (AWS)AnsibleApache KafkaBack-End Web DevelopmentBig DataC++Cascading Style Sheets (CSS)DRMExpress.jsFirewallsFront-end DevelopmentGatsbyJSGitHub ActionsGraphQL

About

I work as a dev and procrastinate over redundant startup ideas, I listen to an unhealthy quantity of music (·•᷄‎ࡇ•᷅ ) 👨‍💻 Programming: Typescript, Python, Rust, C++ 🕸️ Web Frontend: React, Next.js, SC, React Query, Redux, RTK, Jotai, MobX, Recoil, Webpack, Tailwind, CSS, MUI, Ant, NextUI, Framer Motion, Storybook 🌐 Backend: Node, Express, NestJS, GraphQL, Apollo, TypeORM, Mongoose, FastAPI, Flask, Actix 🗃️ Database & Serverless SDKs: PostgreSQL, MongoDB, Redis, Prisma, Firebase, Hasura, Vercel, Supabase 🍊 AWS: Lambda, S3, EC2, ECS, IAM, VPC, ELB, RDS, CodePipeline, Fargate, SQS, CF, Glue, Redshift, DynamoDB, ElastiCache, CFn, OpenSearch, Bedrock 🌈 GCP: Cloud Functions, GCE, GKE, App Engine, Dataflow, Maps API, Text-to-Speech, Vertex AI 💽 Media Server: Ffmpeg, FFT, Opus, JUCE, LAME, GStreamer 📊 DS, MLOps, LLMs: Numpy, Pandas, Polars, ndarray, Matplotlib, SciPy, OpenAI, HuggingFace, Weviate, LangChain, LangGraph, LlamaIndex, Pinecone, Modal, Ragas, promptfoo, LangKit 🚚 Infra & Ops: Docker, K8s, Jenkins, Terraform, Helm, Ansible, GH Actions 💬 Message Queues: Kafka, RabbitMQ 🏁 Testing & Scraping: Playwright, Puppeteer, Cypress, BeautifulSoup, Jest, Mocha & Chai 🔒 Security: Web & Network Security, VA & PT, Purple Team Assessments

Experience

Xeo360

Lead Engineer

May 2025Present · 10 mos · United Kingdom

  • Delivering 360° AEO and GEO a-ha! for industry leading consumer and retail brands.

Tiiny host

Lead Software Engineer

Aug 2023Aug 2025 · 2 yrs · London Area, United Kingdom · Remote

  • Enabling 3M+ pageviews per month on hosted websites, multimedia content and code for 400k+ monthly active users, simplifying static site and file hosting of (almost) any kind, from anywhere, at scale!
  • Architecture redesign and and scale-up infrastructure to enable the platform to serve 20% MoM growth - Code quality and maintainability, low level redesign, integration and e2e test suite and infra setup, error handling, CI/CD pipelines, infrastructure automation, LB, autoscaling and orchestration setup, IGW WAF & DDoS protection, aligning with well-architected framework.
  • Complete analytics and telemetry stack setup to enable optimizing of growth KPIs and metrics, standardized error handling to lower uncaught exceptions by 90%, support tickets by over 70% and infra downtime to ~non-existent.
  • Built malicious upload scanning layer using vector similarity and LLMs reinforcing brand reputation and trust against bad actors. Built a classification engine for hosted content for targeted marketing campaigns. This is in near real-time q-based for 25k DAUs.
  • TB+ fast concurrent multipart resumable file uploads, media encoding & streaming, enterprise API for the film industry. Rewrite of tablestakes and core codebase to zero-bug tolerance, enhanced DX, improved design patterns & eliminate tech bloat.
  • We have an amazingly talented dev team, keeping each other motivated, driven and growing as individuals and as a team. Mental health is extremely important to us and we do our best to cultivate care, empathy and an all-star attitude within our team.
  • Cross-functional collaboration with product and growth to translate product objectives and features to ‘shortest-extensible-path-to-prod’ engineering decisions. We take pride in shipping fast whilst ensuring strict quality standards of our codebase and infra.

Espelar.dev

Founder

Jul 2022Present · 3 yrs 8 mos

  • Purpose-driven bespoke product design and development consulting to early/mid stage startups. We're a distributed project-driven team and work with you to see your medium/long term projects through to fruition, with extended support and maintenance.
  • Working with founders on product design and roadmap, cross-platform application development, AI tooling and Cloud Infrastructure.
  • 𝟮𝟬𝟮𝟯: Launched and 0-1 for a LMS for a group of schools in India with over 5k students. 𝟮𝟬𝟮𝟮: We helped an e-commerce business proliferate SE Asia & UAE markets and position itself as a viable Shopify alternative. MVP for an emerging ed-tech startup to gamify student homework tailored via continuous assessments and path building.
  • We're currently mainly focused on building DSP tooling, VST plugin development and building MPEG DASH media streaming systems and infrastructure for independent audio startups.
Google Cloud Platform (GCP)Web ScrapingNext.jsRust (Programming Language)TypeORMPostgreSQL+8

Lightbox tv

Software Engineering Contractor

Jan 2022Aug 2023 · 1 yr 7 mos · London Area, United Kingdom · Remote

  • LightBoxTV is a disruptive AdTech startup, simplifying media planning and monitoring across a fragmented video on demand and linear TV advertising landscape.
  • Played a pivotal role in design and development of features that led to onboarding some of the biggest ad agencies in the world and forging partnerships with renowned demographics and delivery data providers.
  • Built the only one of its kind in the industry, estimator service to measure unique households reached by a campaign, empowering publishers to optimize inventory for intended audiences and demographics and allocate ad spend accordingly.
  • Architected event-driven services to integrate & collate analytics and delivery data feeds from Demand and Supply side platforms solving end-to-end monitoring of impressions & viewership metrics. Built highly available message queue based microservices with API gateway.
  • Created and maintained CI/CD pipelines, configuration management, provisioning of infrastructure & compute resources and container orchestration and SOC2 compliant architecture setup on AWS.
  • Designed identity and access management, Auth'n'Auth, SSO flows, session management & access control.
  • Created ETL jobs for OLAP to map over ad delivery & revenue data from multiple providers and reduce to bespoke insights for our customers. On-the-fly segmentation APIs for generating intelligent targeted consumer cohorts over IP and viewership data.
  • Built a LLM-driven RAG chat application over TBs of ad exposure data allowing planners to target, customize, activate and monitor campaigns across households in the UK through the platform, leveraging agentic workflows to interact with the API.
NestJSNext.jsReact QueryMongoDBPython (Programming Language)Amazon Web Services (AWS)+6

Inavitas

Full Stack Developer

Dec 2019Jan 2022 · 2 yrs 1 mo · Ankara, Turkey

  • Took complete ownership of development and maintenance of core application functionality, designed & wrote new application modules. Our clients are among Turkey’s biggest energy infrastructure developers and numerous renewable energy companies in Brisbane and the APAC.
  • Revamped non-performant code, optimized queries, implemented efficient algorithms and eliminated bottlenecks leading to significant reduction in response times, improving overall performance.
  • Built the core business logic for the system to deliver data from IOT devices to end users for analytics, overview, management and insights, by mapping 500k+ data points to organizational Units for upstream application layer operations.
  • Designed a content management system for storing and serving user assets, images, reports, firmware binaries across the application.
  • Wrote APIs and workers to efficiently calculate periodic electrical consumption & production, tariffs and billing, device health, etc. Improved system-wide data fetching operations by implementing data caching solutions.
  • Built alerting and reporting systems for analytics with customized charts and widgets & scheduled email notifications and real time dashboard updates via SSE.
  • Led Innovation Sprints, conducted technical interviews, mentored junior developers, served as Scrum Master as needed to help streamline process.
  • Created build and deployment jobs and maintained CI/CD pipelines, logging & monitoring and configuration management of microservices.
DockerKubernetesJavaScriptNode.jsSQLReact.js+7

Network intelligence

Cyber Security Analyst - Team Lead

Jul 2019Dec 2019 · 5 mos · Mumbai Area, India

  • Lead and managed the IT Security Vendor Team for a major Bank.
  • Directed and managed the Vulnerability Assessment and Configuration Audit Process.
  • Implemented security assessments and penetration tests, source code reviews, vulnerability management and secure configuration management of infrastructure comprising of Windows Server 2008, 12 and 16, RHEL, Apache Tomcat, Apache HTTP Server, Oracle, MySQL DB, Sybase, DB2 DB, IIS etc. (non-exhaustive list)
  • Formulated and presented Information Systems reports and solutions to management.
FirewallsWeb Application SecurityNetwork SecurityPenetration TestingOWASP

Safe security

Information Security Analyst

Dec 2018Apr 2019 · 4 mos · New Delhi Area, India

  • Imparted classroom and corporate training in web application security, network security and penetration testing tools & methodologies and ethical hacking.
  • Taught Web Application VA/PT - SQL injection, XSS, CSRF, OWASP. Network Hacking - WEP WPA/WPA2 hacking, router pentesting, network protocols. Tools - Burp Suite, OWASP ZAP, Acunetix, Metasploit framework, BeEF, packet capturing tools - Wireshark, hash cracking tools. Organized CTF weekends, taught a final capstone project to build a keylogger in C++.
Ethical HackingInformation Security

Education

Cornell University Graduate School

Graduate Certificate in Applied Machine Learning and AI

Jan 2025Present

SRM IST Chennai

Bachelor of Technology — Computer Science and Engineering

Jan 2019Present

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