

COMPANY- LIGHTWAVE CONSULTANTS
Position: Ruby on Rails Developer
Experience : 3-7yrs
Location : Lower Parel, Mumbai (Hybrid Work Model)
Job Overview:
We are seeking a proficient Ruby on Rails Developer who brings strong object-oriented programming (OOP) principles, an API-first approach, and experience building scalable applications. The ideal candidate should be comfortable working with modern frontend frameworks, integrating APIs, and contributing to robust, maintainable, and performant backend systems. Familiarity with containerization technologies such as Docker and Kubernetes is a plus. Exposure to other backend languages like Python, Go, or Elixir is an added advantage.
Key Responsibilities:
● Design, build, and maintain scalable web applications using Ruby on Rails.
● Apply OOP principles and design patterns to ensure maintainable and modular codebases.
● Build and maintain RESTful and GraphǪL APIs to support frontend and external integrations.
● Collaborate with frontend teams to ensure seamless integration with modern JavaScript frameworks (React, Vue, etc.).
● Write clean, efficient, and secure code following best practices in performance, testing, and documentation.
● Ensure the system is scalable and performant, capable of handling large-scale data and user interactions.
● Participate in code reviews, system architecture discussions, and continuous improvement processes.
● Work in agile teams, using CI/CD pipelines and version control effectively.
● Implement containerized services and deployments using Docker and optionally Kubernetes.
● Actively contribute to technical decision-making, mentoring junior developers, and maintaining high engineering standards.
Required Skills & Ǫualifications:
●Strong hands-on experience with Ruby on Rails and solid understanding of Ruby language constructs.
● Sound knowledge of OOPs concepts, SOLID principles, and design patterns.
• Proven experience building and maintaining APIs (RESTful and/or GraphǪL).
● Comfortable working with frontend developers and integrating with modern frameworks (React, Vue, etc.).
● Experience working on scalable, production-grade systems.
● Familiarity with SǪL and ActiveRecord, performance tuning, and caching strategies.
● Version control expertise using Git and experience with code review workflows.
● Strong hands-on experience with TDD using RSpec and a clear understanding of testing strategies.
● Comfortable with debugging, profiling, and monitoring production systems.
Preferred Qualifications:
● Exposure to Docker and basic container orchestration with Kubernetes.
● Experience with background job processing (Sidekiq, Resque).
● Knowledge of CI/CD pipelines, deployment strategies, and infrastructure-as-code practices.
● Familiarity with monitoring and alerting tools for backend services.
● Experience working in a microservices or service-oriented architecture (SOA) setup.
● Working knowledge of additional backend languages such as Python, Go (Golang), or Elixir.
● Understanding of security best practices in web development and API design.
● Familiarity with service observability, logs, metrics, and tracing tools

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Job description
- Coding and creating functional web applications and optimizing code for increasing response time and efficiency.
- Coordinating with front-end developers and providing server-side algorithms of user-facing web application elements.
- Analyzing the goals and requirements, handling bugs and errors and providing solutions for the same.
- Interacting with the database for storing data and ensuring that every user has access to what they search.
- Accomplishing the projects and goals within the deadline.
- Managing APIs that are executed across the devices.
- Participating in defining the architecture of the system.
Required skills
- Proven knowledge of front-end technologies, such as Angular, React, HTML, CSS, and JavaScript will be preferred.
- In-depth knowledge of PHP and related frameworks. Knowledge of Ruby, Python, NodeJs, and Java will be an added advantage.
- Good Communication, Analytical, Logical, and Leadership skills.
- Knowledge of front-end technologies such as Angular, React, HTML, CSS, and JavaScript will be preferred.
- Ability to manage a hosting environment along with database administration such as MySQL, Oracle.
- Excellent knowledge of APIs (REST, SOAP) and Web services.
- Capable of scaling applications to handle the load changes.
- Knowledge of version control, such as GIT.
- Knowledge of accessibility and security compliance.


JOB OPENING FOR MNC COMPANY
Job Description for Ruby on Rails Developer:-
Experience: 1 - 4 Years
Job Description:-
- 1 - 4 years of experience with Ruby and web development with Rails
- Experience with Test-Driven Development
- MySQL/PostgreSQL or other relational databases
- Experience with job processing queue (resque, etc.)
- Excellent communication and analytical skills
- Strong requirements gathering, analysis and questions skills
- Ability to contextualize a problem, and understand who the stakeholders are and how it fits in the system before diving into a problem
- Agile, Continuous Delivery and software release methodologies
- Bachelor’s degree or equivalent industry experience
- OS X or *nix Command Line Proficiency
- Ability to manage own work
Nice to have skills:
- Familiarity with OOP principles
- Elixir / Phoenix and familiarity with FP principles
- Docker, Kubernetes or other virtualization infrastructure
- Ability to manage a project
- Other: JavaScript, Rspec, Git, Redis, REST APIs, GraphQL, Domain-Driven Design


Roles/Responsibilities
- Own the coding/design of a sub-module
- Review the requirements and provide simple solutions
- Design the sub-module working with the tech-lead
- Hands-on code the critical parts of the module
- Ensure coding standards, proper design patterns, writing test cases and project mgmt processes are followed
- Mentor the junior programmers
- Peer and junior programmers code review
- Work independently and proactively to deliver production-ready code with minimal guidance
Jobs Skills required
- Strong experience in developing either backend or front end systems
- Backend Exp: RoR, NodeJS, Java, Go, MySQL, Mongo
- Ability to work in a team structure and deliver projects
- Very strong analytical and problem solving skills in super changing environment
- Understanding of algorithms and data structures

Please find below the required skill set
Skillsets:
- Strong Experience in Ruby on Rails
- Solid understanding of Ruby principles and core concepts.
- Good understanding of Object Oriented Concepts and principles.
- Understanding of RESTful/ SOAP APIs.
- Good understanding of front-end technologies including HTML5, CSS3, JavaScript, jQuery, ReactJS and Bootstrap framework.
- Knowledge/ Experience in SQL and PL/SQL programming.
- Excellent communication Skill.

SleepyCat is India's First Mattress-In-A-Box brand! We deliver luxury mattresses, at a fraction of the usual cost, straight from our factory to your doorstep in an easy-to-carry package.
In sleepycat we constantly thrive to make our products and customer experience better using technology.
About Role
We are currently looking out for a Ruby on Rails developer who is motivated to learn and work on challenging projects. You should have a product mindset with great technical skills. In sleepycat we promote new and fresh ideas which can directly or indirectly help customer experience and sales. Sleepycat provides to you platform to bring your thoughts into action and implement them.
Technical skills required: Ruby on Rails
You should be willing to work as a full stack going forward.
Personal and Domain Growth Initiatives
1. In SleepyCat we promote career growth. Once you are settled and have completely owned the system you are hired for, you have the freedom to pick some other technologies inside SC. You will be given time to learn and contribute. Right now we have Web Development (PHP/JS), ReactJS and Ruby on Rails. So you have the freedom to utilize 30% of your time on any of these languages if you wish to and remaining 70% on your primary domain.
2. We also promote self-growth. You can utilize 10% of your time to learn any skill you want and we will help you with that. It is not restricted to the tech domain, could be anything from marketing to sales to personality development.
Interview Process Details
Technical Round 1: Development Knowledge Round
We will test your skills in 3 domains
- understanding an existing written code and ability to make changes
- coding a logical question to test basic coding skills
- ability to think of test cases to write a full proof code
Technical Round 2: Coding Round
45 minutes coding round where you will be required to code live sharing your screen. On the spot problem will be given.
Additional details
Website: https://sleepycat.in/
Work Culture: 6 days(All Saturday half day)
Office Location: 91Springboard, Kalina, Mumbai
Employee Strength: 40+ Employees
Founded: 2017
Funding: $1.6 Million
Read about Sleepycat and funding on Crunchbase: https://www.crunchbase.com/organization/sleepycat
Learn what employees say about SleepyCat on Glassdoor: https://tinyurl.com/r9oqfkl
Checkout what people say about SleepyCat products on Google: https://tinyurl.com/rco3nqr













