Senior Full Stack Engineer (Kotlin) About Us Tech9 is shaking up a 20-year-old industry, and we're not slowing down. Recognized by Inc. 5000 as one of the nation's fastest-growing companies, we are dedicated to building innovative, highly complex web applications. Our team is passionate about delivering quality software that meets the highest standards. We offer a 100% remote working environment with a collaborative and supportive team, allowing you to focus on what you do best. Role Overview We are seeking a Senior Full Stack Engineer with a strong background in Kotlin and cloud-native development. You will help design and implement microservices and AWS Lambda functions , while also contributing to our Ruby on Rails codebase. This project involves both modern microservices development and the improvement of legacy systems , offering a unique opportunity to grow across technologies. Responsibilities + Kotlin Development : Build and maintain services and applications using Kotlin , with a focus on scalability and reliability. + Microservices & Cloud : Design and deploy microservices and AWS Lambda functions , leveraging event-driven architecture. + Ruby on Rails Contribution : Work with existing Rails codebases (or be willing to learn) to deliver features and improvements. + Collaboration : Partner with senior engineers, product managers, and designers to deliver high-quality solutions. + Code Quality : Write clean, maintainable code and participate in code reviews to ensure best practices. + Legacy System Support : Assist with maintaining and modernizing legacy components as part of the team’s roadmap. + Problem Solving : Debug and resolve issues quickly while suggesting improvements for future prevention. + Continuous Learning : Stay updated on industry trends and expand your skillset, especially in Rails if it’s new to you.   Minimum Qualifications + Candidate must be located in India . + 5-7 years of professional software engineering experience. + Strong experience with Kotlin and its ecosystem. + Hands-on experience with microservices and AWS Lambda . + Familiarity with (or willingness to learn) Ruby on Rails . + Solid understanding of cloud environments (AWS preferred). + Strong communication and teamwork skills.   Preferred Qualifications + Experience with other backend frameworks in addition to Rails and Kotlin. + Familiarity with event-driven architectures and worker systems (e.g., Sidekiq, Kafka). + Strong database knowledge (PostgreSQL or MySQL). + Experience in Agile/Scrum environments.   Why Join Us? + Challenging Work : Contribute to both cutting-edge microservices and the improvement of legacy systems. + Flexibility : 100% remote role based in India with flexible working hours. + Collaboration : Learn and grow alongside senior engineers in a supportive environment. + Growth : Expand your expertise in Kotlin, AWS, and Rails while working on a high-impact project.   Hiring Process Our hiring process is designed to be thoughtful, efficient, and focused on both technical ability and team fit : + 30-minute on-demand HireVue screening – Situational and behavioral questions to understand your ownership mindset, adaptability, and approach to collaboration. + 10-minute virtual Q&A with our recruiter – A conversation to clarify the role and answer your questions (not an interview). + 60-minute live technical interview – Conducted with a member of our engineering team. + 15–30 minute chat with the hiring manager – To align on expectations and culture fit. + 1 to 2 –30–60 minute client sessions – Final step to ensure alignment with client needs. #India To ensure you've received our notifications, please whitelist the domains jazz.co, jazz.com, and applytojob.com Powered by JazzHR