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Job Title: Ruby on Rails Developer
Location: Chennai (Work From Office, yes, we love seeing your face!)
Experience: 2-3 years (You’ve got some experience, and we’re here to help you grow even more!)
About the Company:
F22 Labs is a startup software studio based out of Chennai. We are the rocket fuel for other startups across the world, powering them with extremely high-quality software. We help entrepreneurs build their vision into beautiful software products (web/mobile). If you're into creating beautiful software and solving real problems, you’ll fit right in with us. Let’s make cool things happen!
Position Overview:
As a Ruby on Rails Developer at F22 Labs, you’ll be doing more than just coding—you’ll be shaping the future of software. We’re looking for someone who’s passionate about building high-performance, scalable apps and loves solving tricky problems. You’ll work alongside a team of super smart engineers, contributing to innovative web applications that make a difference to the startups we support. With the experience under your belt, you’ll hit the ground running and make an impact right away. Oh, and we like to have fun while we’re at it!
Key Responsibilities:
- Develop and maintain elegant, scalable, and efficient web applications using Ruby on Rails (because clean code is the best code).
- Write code that’s as smooth as butter—maintainable, scalable, testable, and efficient (we all love a tidy codebase).
- Handle background jobs and multi-threading like a pro, making sure the app performs like a rockstar.
- Integrate third-party services and APIs, and make everything work like magic behind the scenes.
- Optimize and manage databases—you’ll be the DBMS guru ensuring queries are sharp and snappy.
- Speed up our apps using Redis caching (because nobody likes waiting for slow apps!).
- Deploy and manage applications on AWS S3—we love our cloud!
- Troubleshoot and fix production issues faster than a speeding bullet (or at least faster than the user can notice!).
- Collaborate with the product team to craft features that are both powerful and user-friendly.
- Bring your creative ideas to the table and help us improve our projects. We love fresh perspectives!
Qualifications and Requirements:
- 2-3 years of experience working with Ruby on Rails (you’ve already mastered the basics, now let’s level up!).
- A strong understanding of DBMS and building efficient databases (you know the database world inside out).
- Hands-on experience with background jobs and multi-threading to make apps run faster than a cheetah on energy drinks.
- Solid knowledge of Redis (Caching) to make sure our apps don’t break a sweat.
- Experience deploying applications on AWS S3 (cloud is life!).
- Comfortable with Git and collaborating with a team (no lone wolves here!).
- Great debugging, problem-solving, and analytical skills—basically, you can fix any bug like a superhero.
- Understanding of RESTful APIs and how they make everything click together.
- Excellent communication skills—because we want to hear your ideas, loud and clear!
Good to Have Skills (Extra Cool Points!):
- Experience with Node.js or Django (extra frameworks, extra cool).
- Familiarity with NoSQL databases (flexible data storage for the win).
- A significant knowledge of DevOps knowledge (help us deploy like the pros we are).
Why Join Us (Perks & Benefits):
- Health insurance (because we want you at your best, inside and out).
- Flexible work timings (get your work done, but do it your way).
- Better-than-market compensation (we know you’re worth it!).
- A supercharged learning culture—grow your skills fast.
- Rapid career growth opportunities—move up faster than a rocket in the sky.
- Work with interesting, fun, and quirky colleagues who make every day feel like an adventure.
- Learn from the best in the industry (and maybe teach us something cool too).
Selection Process:
- Online Assessment
- 1-2 rounds of interviews (no need to stress, we’re all about getting to know you).


Job Responsibilities:
- Design, develop, test, and maintain high-performance web applications and backend services using Python.
- Build scalable, secure, and reliable backend systems and APIs.
- Optimize and debug existing codebases to enhance performance and maintainability.
- Collaborate closely with cross-functional teams to gather requirements and deliver high-quality solutions.
- Mentor junior developers, conduct code reviews, and uphold best coding practices.
- Write clear, comprehensive technical documentation for internal and external use.
- Stay current with emerging technologies, tools, and industry trends to continually improve development processes.
Qualifications:
- Bachelor's degree in Computer Science, Engineering, or a related field.
- 5+ years of hands-on experience in Python development.
- Strong expertise with Python web frameworks like Django and/or Flask.
- In-depth understanding of software design principles, architecture, and design patterns.
- Proven experience working with both SQL and NoSQL databases.
- Solid debugging and problem-solving capabilities.
- Effective communication and collaboration skills, with a team-first mindset.
Technical Skills:
- Programming: Python (Advanced)
- Web Frameworks: Django, Flask
- Databases: PostgreSQL, MySQL, MongoDB, Redis
- Version Control: Git
- API Development: RESTful APIs
- Containerization & Orchestration: Docker, Kubernetes
- Cloud Platforms: AWS or Azure (hands-on experience preferred)
- DevOps: CI/CD pipelines (e.g., Jenkins, GitHub Actions)
We are hiring a Node.js Developer (1-3 years experience) for a full-time role in Wakad, Pune. The candidate must have expertise in Node.js, Nest.js, and Express.js, along with proficiency in MongoDB, MySQL, and ORM libraries. Experience with AWS services, Docker, Kubernetes, and CI/CD pipelines is required. Strong knowledge of authentication mechanisms (JWT, OAuth, Passport.js) and version control (Git) is essential
Job Overview:
We are looking for Tech Lead to join our Engineering team and lead all stages of the software product development life cycle. This will include analyzing system and user requirements, designing software flowcharts, writing clean Java code, troubleshooting bugs, and running tests to improve system functionality. If you are a person who has proficiency in Java technologies, good analytical skills, the ability to design software systems and anticipate issues, and frame remedial actions with excellent teamwork skills; We would like to speak to you
Responsibilities:
1. Design, develop, scale, and maintain backend services in Java
2. Collaborate with the engineering and product team to discuss project definitions and goals.
3. Work on individual priorities, deadlines, and deliverables.
4. Improve reliability, scalability, observability, and security of the backend systems.
5. Write simple, efficient, and maintainable code
6. Function well in a fast-paced, rapidly changing environment
7. Ensuring best coding standards and practices to improve and maintain quality.
Requirements:
8. Bachelor/Master degree in CS or related field from a reputed college
9. Sound knowledge of Java technologies.
10. Solid grip on the programming basics like DS and algorithms, OOPS.
11. Experience with software design and application programming
12. Understanding & experience with software design patterns, restful APIs, and microservice architecture
13. Experience with software design and application programming
14. Strong debugging skills
15. Exposure to CI/CD and Test-Driven Development
16. Nice to have are Unix / Linux, database SQl / NoSQL, Java Spring, working knowledge on scripting (Perl, Shell Scripting).

Our Client is B2B SaaS Product Co. in the space of HR Technology. They are helping organisations to take informed decisions in the areas like Hiring, Training and Career Succession processes. The company was formed in 2010 and since has become a market leader in HR technology space. The founders are alumni of Stanford University and their employees have experience in working with PWC, McKinsey and other similar leagues of organisations.With a bright vision of the founders, the organisation is in an expansion mode to capture niche markets and become a global leader in this domain.
- Experience in Back-End development using Ruby on Rails or NodeJS
- Experience in working on at least two of MongoDB / Postgres / MySQL & Redis
- Experience on MVC patterns using frameworks like Rails, ExpressJS
- Strong understanding of RESTful APIs and HTTP protocol
- Understanding Security aspects of the applications and can successfully implement OWASP compliant systems
- Strong understanding of Linux OS, File Systems, Firewalls etc
- 3 years Experience in Ruby on Rails
- Minimum 3 years in MongoDB / PostgreSQL
- Must be from Product based companies

The ideal candidate should demonstrate the following:
- Fluency in Ruby on Rails, RDBMS & Nosql and Background Job process management.
- Working experience of JavaScript, HTML5 & CSS3, jQuery (show us what you have created!)
- Experience with Angular.JS, Node.JS, PWA, AWS, Google Cloud a major plus
- Excellent problem solving skills and ability to break complex problems into simpler tasks
- Hard working, self-starter, proven ability to manage multiple projects to strict deadlines
- Ability to participate in high level strategy discussions, work in areas outside of your comfort zone, and work quickly to get things done
What is expected of you:
Responsible for architecting and implementing optimal development processes, leading the entire development team, making major decisions, conducting code reviews with a hands on approach to the development of all front-end/back-end and/or mobile functionality.
• More than 3+ years of experience developing serverless applications using public
cloud like Google Cloud/ AWS
• Knowledge of Node. js and frameworks available for it.
• Strong proficiency with JavaScript
• Understanding the nature of asynchronous programming and its quirks and workarounds.
• Distributed system development with an understanding of latency, scalability, scheduling, asynchronous programming, and reliability
• Understanding fundamental design principles behind a scalable application
• Experience with services common to serverless architectures, like: AWS Lambda, DynamoDB, IAM, Firebase Real Time Database, Google Cloud SQL, Cloud Tasks.
It’s a bonus if you have worked on Google Cloud Project and Firebase.
• Solid Experience with NoSQL and SQL databases is required with proven experience of creating database schemas that represent and support business processes.
• Integration of multiple data sources and databases into one system.
• Experience with deploying, maintaining, debugging live systems, and end-to-end testing and analysis
• Experienced in creating micro-services based architectures, reusable components
• Experience building REST APIs and other common application architectures on the above services
• Experience building data processing pipelines
• Solid understanding of code, design, and development practices
• General comfort in exploring, assessing, and learning new frameworks
• High levels of integrity and professionalism, and an ability to channel maximum amounts of energy into the role delivering premium customer service at all times
• Adhere to different Project Management methodologies (Agile etc) and leverage different CI/CD tools
Extra Gems for:
• Google, AWS and/or Industry certifications.
• Familiarity with object storage such as AWS S3, Firebase Storage, in-memory caches such as Redis
• Demonstrated performance of threat modeling, risk assessment techniques, code reviews in the context of DevSecOps security
• Knowledge of Application Monitoring using tools like Google Stackdriver
• Broad familiarity with other languages like J2EE, Python as we write some code in these as well.
• Experience with Github and advanced Github features.
• Experience of working in Product industry
• Open source contributions, interesting hobby projects.
Your responsibilities would include:
• Your primary focus will be the development of reliable server-side logic that would be used by millions of users daily.
• Augmenting an in-house authoritative serverless real-time multiplayer gaming backend catering lakhs of events every second.
• Designing, implementing and optimising low-latency, high-availability, secure and performant system for our end-user; ensuring “awesome” user-experience.
• Defining and maintaining the database, keeping in mind high performance and responsiveness to all requests-rate.
• Have the ownership of designing architecture, developing, maintaining,
debugging, scaling live backend services.




the core library/language constructs.
• Knowledge of processor, memory, network and storage internals. Familiarity with I/O optimized
algorithms.
• Deep understanding of distributed systems including fault modeling, concurrency, isolation,
consensus etc.
• Internals of a RDBMS like MySQL
• Conversant with the internals of systems like Kafka, Cassandra/Scylla, Redis, RocksDB etc
• Working knowledge of hosting and network infrastructure (K8s, Envoy, etc)
• Familiarity with binary serialization protocols like thrift/protobuf/flatbuffers etc
• Familiar with gRPC, HTTP/2, QUIC, etc.
• Troubleshooting memory issues, GC tuning, resource leaks etc.
• Strong problem-solving skills, algorithmic skills and data structures.
• Productionizing machine learning pipelines using Spark/Flink/TensorFlow etc
• Familiarity with big data concepts - HDFS, hive, presto, spark, oozie, ambari, airflow, atlas,
ranger, etc. Familiarity with formats like avro, parquet, orc, arrow etc
• Good understanding of branching, build, deployment, continuous integration methodologies
• Experience in leading a team and mentoring engineers
• Attitude to get Stuff Done!
• Ability to make decisions independently.
Desired Background:
• Bachelor’s or Master’s degree in Engineering from premier institutes preferred
• 8+ years of experience in software design, development & architecture




