Lead/Principal Backend Developer - Full Stack

Job Title: Backend Engineer – Python / Golang / Rust

Location: Bangalore, India

Experience Required: Minimum 2–3 years

About the Role

We are looking for a passionate Backend Engineer to join our growing engineering team. The ideal candidate should have hands-on experience in building enterprise-grade, scalable backend systems using microservices architecture. You will work closely with product, frontend, and DevOps teams to design, develop, and optimize robust backend solutions that can handle high traffic and ensure system reliability.

Key Responsibilities

• Design, develop, and maintain scalable backend services and APIs.

• Architect and implement microservices-based systems ensuring modularity and resilience.

• Optimize application performance, database queries, and service scalability.

• Collaborate with frontend engineers, product managers, and DevOps teams for seamless delivery.

• Implement security best practices and ensure data protection compliance.

• Write and maintain unit tests, integration tests, and documentation.

• Participate in code reviews, technical discussions, and architecture design sessions.

• Monitor, debug, and improve system performance in production environments.

Required Skills & Experience

• Programming Expertise:

• Advanced proficiency in Python (Django, FastAPI, or Flask), OR

• Strong experience in Golang or Rust for backend development.

• Microservices Architecture: Hands-on experience in designing and maintaining distributed systems.

• Database Management: Expertise in PostgreSQL, MySQL, MongoDB, including schema design and optimization.

• API Development: Strong experience in RESTful APIs and GraphQL.

• Cloud Platforms: Proficiency with AWS, GCP, or Azure for deployment and scaling.

• Containerization & Orchestration: Solid knowledge of Docker and Kubernetes.

• Messaging & Caching: Experience with Redis, RabbitMQ, Kafka, and caching strategies (Redis, Memcached).

• Version Control: Strong Git workflows and collaboration in team environments.

• Familiarity with CI/CD pipelines, DevOps practices, and cloud-native deployments.

• Proven experience working on production-grade, high-traffic applications.

Preferred Qualifications

• Understanding of software architecture patterns (event-driven, CQRS, hexagonal, etc.).

• Experience with Agile/Scrum methodologies.

• Contributions to open-source projects or strong personal backend projects.

• Experience with observability tools (Prometheus, Grafana, ELK, Jaeger).

Why Join Us?

• Work on cutting-edge backend systems that power enterprise-grade applications.

• Opportunity to learn and grow with a fast-paced engineering team.

• Exposure to cloud-native, microservices-based architectures.

• Collaborative culture that values innovation, ownership, and technical excellence.

About Team:

CaratLane's mission is to help customers express their emotions through jewellery. Consumer Experience Technology team is an enabler to deliver the exceptional Consumer Experience and WoW business features in large scale website, apps and backend systems.

What do we want:

* 5 to 8 years of experience in Java and Spring Boot working with large scale backend applications

* Expertise in PostgreSQL and any of caching databases

* Experience in developing RESTful/GraphQL APIs and microservices based applications

* Good problem solving and debugging skills.

* Exposure on event-driven, asynchronous I/O

* Good knowledge of engineering excellence: Unit Testing/TDD, Code quality, Documentation, CI&CD

* Experience in non-functional requirements (Scalability, Performance optimisation, Security)

* Experience is Linux development and AWS ecosystem tools

Please find below updated JD for Java requirement.

-Work with a performance-oriented team driven by ownership and open to experiment.

• -6+ years of Java advanced software development experience, with concurrent (multi-threaded) programming highly desirable.
• -Strong experience on Core Java 8, Java EE, Spring Boot, Maven and Docker including Multi-threading.

.          -Strong problem solving skills, computer science fundamentals, data structures and algorithms.

• -Hands on experience with any SQL Database.
• -Ability to learn new technologies like ELK, stack, redis etc.
• -Must have expert level knowledge in Java, Springboot.
• -Must have knowledge or hands on experience in microservices, apache kafka and distributed caching.

.           -Experience in distributed/scalable systems

• -Strong knowledge of design patterns and software engineering best practices.
• -Familiarity with standard development tools and processes: Git, Eclipse, JUnit test, debugging, profiling, etc.

.           -Familiarity with CI/CD and DevOps

.           -Strong knowledge and previous experience in end-to-end design, development and subsequent

             support of large-scale data processing systems

.           - Familiarity and confidence working in an agile development environment.

.           - Good Problem solving skills

• - Good oral and written communication skills.
• - Strong debugging skills.

Java

Mandatory:

1. Strong expertize in Java/J2EE(4-7 years of experience)
2. Strong  expertize in Microservices, SpringBoot
3. Java including multithreading and concurrency

Preferred skills :

1. Experience in  Virtualization, SDN, NFV, Yang, Netconf
2. Good Knowledge on Networking
3. Multithreading and concurrency

Kunato.AI is a NY-based IT firm helping to create the first marketplace that monetizes digital content on the internet (i-commerce). We have a patented technology - a quantitative deep tech system that predicts, assigns and updates the value of any digital content in real-time without the need for human intervention.

Our system has the potential to create a new digital goods marketplace that will revolutionize the way we consume, create and search for content on the Internet.

We are at an exciting juncture of our growth journey and are looking for Software Developers to join us in making this vision a reality. We are looking for Nodejs Developers (with 2-6years of experience) to join our cutting-edge development team as it grows. The candidate must be comfortable working in an agile environment and can take the lead when necessary. If you are keen on being part of an early-stage start-up with an emphasis on innovation and best development practices, we are the right place for you!

What will you be working on?

• We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users.
• Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front end.
• You will be responsible for developing the product as per the product specification defined by the product managers
• Perform research on the best methods of implementing the requirements. Author and curate technical documentation to support delivery, maintenance, and adoption
• Work with programmers, engineers, and management heads to identify process improvement opportunities, propose system modifications, and devise governance strategies to optimize the overall performance
• Design and develop automated deployment and maintenance mechanisms
• Solving development challenges and making architectural decisions by understanding the larger picture of the projects goals
• Confidently communicating and collaborating with your fellow developers in a remote team environment.
• Maintain high standards of software quality within the team by establishing good coding practices.

What are we looking for?

• Must have experience in Nodejs.
• Have excellent knowledge of different data structures and algorithms
• Working knowledge of any other programming languages is good to have
• Experience with, or understanding of, Kafka or Redis, Cloud infrastructure services, Docker is an added advantage
• Experience with SQL or NoSQL databases, MySQL, MongoDB, Elasticsearch, etc.
• Experience in Backend and APIs development
• Experience in analyzing and optimizing the platform’s performance

We look forward to hear from you:)

1. Should be very strong Scala development(Coding)
2. With Any combination of Java/Python/Spark/Bigdata
3. 3+ years experience in Core Java/Scala with good understanding of multithreading
4. The candidate must be good with Computer Science fundamentals
5. Exposure to python/perl and Unix / K-Shell scripting
6. Code management tools such as Git/Perforce.
7. Experience with large batch-oriented systems 
8. DB2/Sybase or any RDBMS
9. Prior experience with financial products, particularly OTC Derivatives
10. Exposure to counterparty risk, margining, collateral or confirmation systems