Mid-Level Full Stack Engineer (Kotlin & Ruby on Rails)

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 Mid-Level 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.
• 3–5 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:

1. 30-minute on-demand HireVue screening – Situational and behavioral questions to understand your ownership mindset, adaptability, and approach to collaboration.
2. 10-minute virtual Q&A with our recruiter – A conversation to clarify the role and answer your questions (not an interview).
3. 60-minute live technical interview – Conducted with a member of our engineering team.
4. 15–30 minute chat with the hiring manager – To align on expectations and culture fit.
5. 1 to 2 –30–60 minute client sessions – Final step to ensure alignment with client needs.

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