Backend Developer

Role Overview:

As a Backend Developer at LearnTube.ai, you will ship the backbone that powers 2.3 million learners in 64 countries—owning APIs that crunch 1 billion learning events & the AI that supports it with <200 ms latency.

What You'll Do:

At LearnTube, we’re pushing the boundaries of Generative AI to revolutionize how the world learns. As a Backend Engineer, your roles and responsibilities will include:

• Ship Micro-services – Build FastAPI services that handle ≈ 800 req/s today and will triple within a year (sub-200 ms p95).
• Power Real-Time Learning – Drive the quiz-scoring & AI-tutor engines that crunch millions of events daily.
• Design for Scale & Safety – Model data (Postgres, Mongo, Redis, SQS) and craft modular, secure back-end components from scratch.
• Deploy Globally – Roll out Dockerised services behind NGINX on AWS (EC2, S3, SQS) and GCP (GKE) via Kubernetes.
• Automate Releases – GitLab CI/CD + blue-green / canary = multiple safe prod deploys each week.
• Own Reliability – Instrument with Prometheus / Grafana, chase 99.9 % uptime, trim infra spend.
• Expose Gen-AI at Scale – Publish LLM inference & vector-search endpoints in partnership with the AI team.
• Ship Fast, Learn Fast – Work with founders, PMs, and designers in weekly ship rooms; take a feature from Figma to prod in < 2 weeks.

What makes you a great fit?

Must-Haves:

• 2+ yrs Python back-end experience (FastAPI)
• Strong with Docker & container orchestration
• Hands-on with GitLab CI/CD, AWS (EC2, S3, SQS) or GCP (GKE / Compute) in production
• SQL/NoSQL (Postgres, MongoDB) + You’ve built systems from scratch & have solid system-design fundamentals

Nice-to-Haves

• k8s at scale, Terraform,
• Experience with AI/ML inference services (LLMs, vector DBs)
• Go / Rust for high-perf services
• Observability: Prometheus, Grafana, OpenTelemetry

About Us: 

At LearnTube, we’re on a mission to make learning accessible, affordable, and engaging for millions of learners globally. Using Generative AI, we transform scattered internet content into dynamic, goal-driven courses with:

• AI-powered tutors that teach live, solve doubts in real time, and provide instant feedback.
• Seamless delivery through WhatsApp, mobile apps, and the web, with over 1.4 million learners across 64 countries.

Meet the Founders: 

LearnTube was founded by Shronit Ladhani and Gargi Ruparelia, who bring deep expertise in product development and ed-tech innovation. Shronit, a TEDx speaker, is an advocate for disrupting traditional learning, while Gargi’s focus on scalable AI solutions drives our mission to build an AI-first company that empowers learners to achieve career outcomes. We’re proud to be recognised by Google as a Top 20 AI Startup and are part of their 2024 Startups Accelerator: AI First Program, giving us access to cutting-edge technology, credits, and mentorship from industry leaders.

Why Work With Us? 

At LearnTube, we believe in creating a work environment that’s as transformative as the products we build. Here’s why this role is an incredible opportunity:

• Cutting-Edge Technology: You’ll work on state-of-the-art generative AI applications, leveraging the latest advancements in LLMs, multimodal AI, and real-time systems.
• Autonomy and Ownership: Experience unparalleled flexibility and independence in a role where you’ll own high-impact projects from ideation to deployment.
• Rapid Growth: Accelerate your career by working on impactful projects that pack three years of learning and growth into one.
• Founder and Advisor Access: Collaborate directly with founders and industry experts, including the CTO of Inflection AI, to build transformative solutions.
• Team Culture: Join a close-knit team of high-performing engineers and innovators, where every voice matters, and Monday morning meetings are something to look forward to.
• Mission-Driven Impact: Be part of a company that’s redefining education for millions of learners and making AI accessible to everyone.

Location: Hyderabad

Work Mode: Hybrid (2 days WFO)

Experience Required: 4.5+ years

Notice Period: Immediate Joiners Preferred

Employment Type: Full-Time

Mandatory Requirements:

• 4.5+ years of experience in Java Development
• Hands-on experience with AWS in a production environment
• Must be available to join immediately
• Must be willing to work in Hybrid mode from Hyderabad

Technical Skill Requirements:

• Strong hands-on experience in Core Java, Spring Boot, and Microservices
• Solid understanding of OOP concepts, Multithreading, and REST APIs
• Practical knowledge and experience working with AWS services like EC2, Lambda, S3, RDS, SNS, etc.
• Familiarity with CI/CD tools and version control systems (Git)
• Good knowledge of SQL and NoSQL databases
• Ability to write clean, efficient, and well-documented code

Key Responsibilities:

• Design, develop, and maintain scalable Java-based backend applications
• Implement and integrate AWS services to ensure scalability and reliability
• Collaborate with cross-functional teams including QA, DevOps, and Front-end developers
• Optimize application performance and troubleshoot issues in a timely manner
• Participate in code reviews, sprint planning, and team discussions
• Ensure best practices in code quality, security, and documentation
• Handle deployments and production support if needed

• Develop new functionalities on the Company platform, in close collaboration with the Product team
• Analyse and correct anomalies across the various environments
• Propose and participate in the platform evolution
• Contribute to the platform architecture, ensure strong code quality (tests & code reviews) and adherence to best practices
• Mentor and support junior developers

• Writing back-end code and building efficient PHP modules.
• Write clean, well-designed code.
• Updating and altering application features to enhance performance.
• Conducting analysis of website and application requirements.
• Developing back-end portals with an optimized database.
• Integrating data storage solutions.
• Troubleshoot and fix any issues relating to PHP programs.
• Ensure smooth operations of web processes and infrastructure.