Merlin - Full Stack Developer - Java/Kotlin/React.js

Role : Java/Kotlin - Full Stack Developer (React.js/Next.js)

• Location : Bangalore, India (Onsite from Day 1)
• Experience : 2 Years
• Employment : Full-Time | Permanent
• Working Hours : Flexible - PST overlap required (~5 : 30 PM 2 : 30 AM IST)
• Target Profile : IIT | IIIT | NIT | BITS | Unicorn / Tier-1 Company Alumni

About the Role :

We are hiring a high-caliber Full Stack Engineer to join our core engineering team in Bangalore. You will work on large-scale, distributed systems and own features end-to-end from architecture to production. This is a highly selective role targeting engineers with strong computer science fundamentals, hands-on full-stack expertise, and a proven track record at unicorn startups or tier-1 product companies.

Candidates from premier institutions (IIT, IIIT, NIT, BITS) are strongly preferred.

What You'll Do :

• Design and build high-performance backend services in Java, Python, Kotlin, or Go
• Develop modern, responsive frontends using React / Next.js with TypeScript
• Architect distributed systems with clear HLD and LLD thinking
• Own AWS infrastructure design, provision, and optimise for scale and reliability
• Build and maintain CI/CD pipelines; manage containerised workloads with Docker and Kubernetes
• Model and manage data across relational, NoSQL, and in-memory stores
• Design event-driven architectures using Kafka and RabbitMQ
• Solve complex algorithmic and system design problems from first principles
• Participate in design reviews, code reviews, and cross-team technical discussions
• Mentor junior engineers and contribute to engineering culture

Technical Requirements :

Languages &

• Backend :
• Proficiency in one or more : Java, Kotlin
• Strong grasp of concurrency, memory management, and performance tuning
• Experience designing RESTful APIs and/or gRPC services

Frontend :

• React and Next.js with TypeScript production-grade experience required
• Familiarity with SSR/SSG, state management, and frontend performance optimisation

Cloud, DevOps &

• Infrastructure :
• AWS - EC2, ECS, Lambda, S3, RDS, CloudWatch, IAM, VPC, and more
• Docker for containerisation
• Kubernetes (EKS or self-managed) for orchestration
• CI/CD pipelines - GitHub Actions, Jenkins, ArgoCD, or equivalent
• Infrastructure-as-Code (Terraform, CDK, or CloudFormation) is a plus

Databases &

• Caching :
• Relational : MySQL, PostgreSQL - schema design, indexing, query optimisation
• NoSQL : MongoDB document modeling, aggregation pipelines
• Redis - caching strategies, pub/sub, distributed locks

Messaging &

• Streaming :
• Apache Kafka producers, consumers, partitioning, offset management
• RabbitMQ exchange types, routing, dead-letter queues

Problem Solving &

• System Design :
• Strong DSA skills like
• LeetCode Medium/Hard level comfort
• HLD : distributed systems, CAP theorem, consistency models, load balancing, sharding
• LLD : SOLID principles, design patterns, class modeling, API contracts
• Ability to estimate scale, identify bottlenecks, and articulate trade-offs clearly

What We're Looking For :

• 2 years of software engineering experience in a product-driven environment
• B.Tech / B.E. / M.Tech from IIT, IIIT, NIT, BITS, or equivalent premier institution
• Prior or current experience at a unicorn startup, FAANG, or tier-1 technology company
• Exceptional problem-solving ability strong CS fundamentals are non-negotiable
• Open to flexible working hours with PST overlap (firm requirement)
• Excellent communication able to articulate design decisions to technical and non-technical stakeholders
• Ownership mindset takes problems from ambiguity to production independently