

If you were looking for a rocket-ship, this is it!
* 1+ years of experience with web development building good quality production software
* Proficiency in at least one of: Ruby/Rails or Elixir/Phoenix (Good working knowledge of Elixir, OTP or OO programming)
* Gained good knowledge of working with APIs and performance optimisation to identify bottlenecks and bugs, and devise solutions to these problems
* Familiar with data stores like PostgreSQL & Redis
* You write clean code, automate and continuously deploy it in fast development cycles.
* Experience in designing and building scalable and distributed systems
* Experience with CICD using Gitlab or AWS CodePipeline/CodeDeploy (Exposure to AWS is highly desirable)
* You are proactive and pay attention to the security, scalability, performance, availability and usability of systems.

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We are looking for engineers who love to build SaaS products to join our team.
This position is for a product we have been building for 4 years now, for a long term customer of ours. The Codebase is well maintained, with a rails backend and a react frontend.
If you are someone who has invested time into writing reusable rails or nodejs modules, who has written ruby gems or npm packages, you feel at home working with us.
Required Knowledge:
- How Web backends or Rails works
- Mastery over ORMs or Active Record Migrations, Validations
- Good knowledge of writing encapsulated business logic
Great to Have
- Open source npm packages or ruby gems
- Performance tuning for Apps
- Ruby Metaprogramming knowledge
- Functional JS
Interview Format
Two coding rounds of 45 mins each.
If you crack both the rounds, you get the job, and incase you decline the offer any reason we will give you a gift voucher for spenidng your valuable time with us.
In case you dont crack the question, we will tell you what to learn so that next time you will have a good chance :)



and Rails framework along with PostgreSQL database. Someone who is passionate
about coding and loves to work in an ongoing challenging environment. You will be part
of a talented software team. You have to consistently deliver in a fast paced
environment and should be more than willing to build software that people love to use.
Key Responsibilities
The individual role that you’ll play in our team:
● Developing large multi-tenant applications in Rails.
● Understanding Rails best practices and religiously introducing those to our
codebase.
● Knowledge on how to do effective Refactoring.
● Ability to write unit tests and following those practices religiously.
● Working closely with the Product managers and UX team.
● Helping QAs to write automated integration tests.
● Staying up-to-date with current and future Backend technologies and
architectures.
Read the ‘Skills and Experience’ section, it is not the usual yada yada, you’ll be
asked specific questions on these.
Skills and Experience
● Ruby on Rails architecture best practices
● Knowledge on the latest versions on ROR
● Strong OOP knowledge in Ruby.
● Asynchronous Networking in Ruby
● Designing RESTFul HTTP APIs using JSON-Schema or JSON API (jsonapi.org).
● Ability to architect and develop API only backend
● Experience in using ActiveRecordSerializer
● Understanding O-Auth2 or JWT (Json Web Token) authentication mechanisms.
● How to use RSpec
● Rails Security Best Practices
● PostgreSQL and Rails.
● SQL concepts like Joins, Relationships etc.
● Understanding DB Partition strategies.
● Knowledge about refactoring ActiveRecord Models (read this - “7 Patterns to
Refactor Fat ActiveRecord Models”).
● Understanding scaling strategies for a high-traffic Rails applications (2 million+
requests a day).
● Background Job processing using Redis and Sidekiq
● Experience in using Amazon Web Services (AWS) tools.
● Writing automated Deployment Scripts using Capistrano, Ansible etc.
● Sending emails in Rails
● Knowledge in Linux and Git is mandatory



Job Requirements:
· Bachelor’s degree (minimum) in Computer Science or Engineering.
· Minimum 5 years of experience working as a senior–level Software Engineer
· Excellent programming and debugging skills in RoR and Python
· Experience in web development and automation
· Experience developing on Windows and Linux systems
Although not required, the following are a plus:
· Experience working with Build scripts, Shell scripts, Makefiles
· Experience with Jenkins and other CI/CD tools
· Knowledge of RESTful web services and docker




- You solve problems at their root, stepping back to understand the broader context.
- You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
- You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
- You recognize and use design patterns to solve business problems.
- You understand how operating systems work, perform and scale.
- You continually align your work with Amazon’s business objectives and seek to deliver business value.
- You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
- You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
- You communicate clearly with your team and with other groups and listen effectively.

Years of Exp : 4 - 8yrs
Job Location: Mumbai/Bangalore
Job description:
We are looking for a Sr. Back end web developer/Lead passionate towards building high
performance web applications which can scale for B2C businesses. We are looking for
self-driven individuals who love to find innovative solutions and can perform under pressure. An eye for details and being proud of produced code are the must have attributes for this job.
Responsibilities.
●You will be responsible for converting Product team requirements to modular, testable and efficient code.
●You will be required to design and implement data storage solutions (Databases, caching
layers etc).
●You will also be required to cater to NFRs related to security and performance.
Skills
●At least 5 years of experience in working on NodeJS/Java/Ruby
●Proficiency in RDBMS such as MySQL/PostgreSQL.
●Experience of building/deploying applications on AWS is a definite advantage.
●Familiarity with some ORM (Object Relational Mapper) libraries like Sequelize is required.
●Experience in some NoSQL databases (e.g. DynamoDB/Elasticsearch/Redis Cache etc) is a definite plus.
●Good understanding on architectural patterns (e.g. MVC) is required.
●Good communication and analytical skills are the basic needs for this role.
●An urge to create awesome applications that people will enjoy using is a must.
●Other technologies : MySQL , Redis, AWS, Microservices, REST API .
●Knowledge of Javascript is preferable.
●AWS or some cloud experience.
●Should have built web application technology.
●Should have understanding of DevOps and Database.
●Should have done application performance tuning.
Qualification:
●Engineering graduates from Tier I or II institutes.
●B.E/ B.Tech/ MCA/ ME/ M.Tech










