
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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Hey there! We are seeking a highly skilled and passionate Ruby on Rails developer to join our team. As a key member of our development team, you will be responsible for enhancing our product offerings and ensuring smooth operations and scalability of our existing infrastructure. If you have a strong foundation in RoR development, possess a knack for writing clean code, and are excited about building and scaling innovative products, we would love to hear from you.
To provide you with a brief overview of the job role, we are sharing the specific requirements that we expect from you. Please have a look:
Requirements:
- Proven experience working as a Ruby on Rails developer in a production environment.
- Strong knowledge of Ruby, Ruby on Rails framework, and PostgreSQL.
- Extensive experience with hosting and maintaining production applications on AWS, Google Cloud Platform (GCP) services.
- Solid understanding of real-time communication and experience with socket programming.
- Experience in implementing AI in real-world applications is a solid plus.
- Experience in front-end technologies, particularly Vue.js would be a plus
- Strong problem-solving skills and ability to analyze and debug complex issues.
- Experience leading a development team or mentoring junior developers.
- Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment.
- Self-motivated and able to work independently with minimal supervision.
Responsibilities:
- Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions.
- Architect and implement scalable solutions using RoR, PostgreSQL, and AWS.
- Develop and maintain APIs, web services, and integrations with various third-party systems.
- Lead and collaborate with a team of developers to design, develop, and maintain high-quality scalable applications.
- Recruit and provide technical leadership and guidance to developers.
- Optimise and ensure the reliability of the backend infrastructure.
- Optimise application performance and ensure the scalability and security of the software.
- Stay up-to-date and passionate about the latest technologies, trends, and best practices in software development.
- Optimize the monthly spending on cloud infrastructure.
About Foaps:
We are an innovative startup empowering restaurants to excel in the online food delivery business. Our platform aggregates all online food delivery orders into a single consolidated dashboard, improving the efficiency of order management and aiding restaurant growth. With a strong presence in the Indian market and partnerships with major delivery services like Zomato, Swiggy, Dunzo, Thrive, and magicpin, we are making a significant impact in the restaurant industry. Backed by flat6labs Bahrain, our mission is to revolutionize how restaurants conduct their online food delivery business.
For more details visit our website www.foaps.co
Why Join Foaps?:
At Foaps, we offer compelling reasons for you to join our team:
- Collaborate directly with the founders: As a part of our team, you'll have the opportunity to work closely with the founders and actively participate in the decision-making processes of our early-stage startup. Your contributions will have a direct impact on shaping the direction and success of our business.
- Stock options: We believe in recognizing and rewarding the hard work and dedication of our team members. As a valued team member, you will be eligible for stock options based on your performance and contributions. This allows you to share in the growth and success of the company.
- Performance-based salary increments: We value your efforts and believe in fostering a culture of growth. Individuals’ performance, dedication, contribution, and achievements will be acknowledged and rewarded accordingly.
- Team-oriented environment: At Foaps, we prioritize collaboration and teamwork. Our company culture is not based on hierarchy but rather on creating an environment that fits the needs and strengths of our team. We foster a supportive and inclusive atmosphere where everyone's voice is heard and contributions are valued.
- Make a difference in the Restaurant industry: Foaps is revolutionizing the online food delivery business, making it easier for restaurants to do online delivery business. By joining our team, you'll have the opportunity to contribute to this transformation and play a vital role in shaping the future of the restaurant industry.
Interested? Join us and become a vital part of our startup journey. Together, we'll build an exciting future and make a real impact.
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
● Design, build, and maintain efficient, reusable, and reliable Ruby code.
● Integration of data storage solutions (may include databases, key-value stores, blob stores,
etc.).
● Integration of user-facing elements developed by front-end developers with server side logic
● Identify bottlenecks and bugs, and devise solutions to these problems.
● Help maintain code quality, organization and automatization.
Skills:
● Experience with Ruby on Rails, along with other common libraries such as RSpec and Resque.
● Good understanding of the syntax of Ruby and its nuances.
● Solid understanding of object-oriented programming.
● Good understanding of server-side templating languages (such as Liquid, Slim, etc depending on
your technology stack).
● Good understanding of server-side CSS preprocessors (such as Sass, based on project
requirements).
● Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3.
● Familiarity with concepts of MVC, Mocking, ORM, and RESTful.
● A knack for writing clean, readable Ruby code.
● Ability to integrate multiple data sources and databases into one system.
● Understanding of fundamental design principles behind a scalable application.
● Able to create database schemas that represent and support business processes.
● Able to implement automated testing platforms and unit tests.
● Proficient understanding of code versioning tools (e.g. Git, Mercurial or SVN)
● Familiarity with development aiding tools (such as Bower, Bundler, Rake, etc).
● Familiarity with continuous integration.
Responsibilities:
- Hand on experience in Golang/Python/Ruby on Rails /Node.Js
- Must have at least 1+ years of experience in Team Handling
Role- Software Development Engineer-2
As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward.
Top Skills
- You write high quality, maintainable, and robust code, often in Java or C++ or C#
- You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.
- You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.
- Roles & Responsibilities
- 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.
Skills & Experience
- Bachelors or Masters in Computer Science or relevant technical field.
- Experience in software development and full product life-cycle.
- Excellent programming skills in any object-oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.
- Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.
- Proficiency in SQL and data modeling.
About Amazon.com
“Many of the problems we face have no textbook solution, and so we-happily-invent new ones.” – Jeff Bezos
Amazon.com – a place where builders can build. We hire the world's brightest minds and offer them an environment in which they can invent and innovate to improve the experience for our customers. A Fortune 100 company based in Seattle, Washington, Amazon is the global leader in e-commerce. Amazon offers everything from books and electronics to apparel and diamond jewelry. We operate sites in Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Netherlands, Spain, United Kingdom and United States, and maintain dozens of fulfillment centers around the world which encompass more than 26 million square feet.
Technological innovation drives the growth of Amazon, offering our customers more selection, convenient shopping, and low prices. Amazon Web Services provides developers and small to large businesses access to the horizontally scalable state of the art cloud infrastructure like S3, EC2, AMI, CloudFront and SimpleDB, that powers Amazon.com. Developers can build any type of business on Amazon Web Services and scale their application with growing business needs.
We want you to help share and shape our mission to be Earth's most customer-centric company. Amazon's evolution from Web site to e-commerce partner to development platform is driven by the spirit of invention that is part of our DNA. We do this every day by inventing elegant and simple solutions to complex technical and business problems. We're making history and the good news is that we've only just begun.
About Amazon India
Amazon teams in India work on complex business challenges to innovate and create efficient solutions that enable various Amazon businesses, including Amazon websites across the world as well as support Payments, Transportation, and Digital products and services like the Kindle family of tablets, e-readers and the store. We are proud to have some of the finest talent and strong leaders with proven experience working to make Amazon the Earth’s most customer-centric company.
We made our foray into the Indian market with the launch of Junglee.com, enabling retailers in India to advertise their products to millions of Indian shoppers and drive targeted traffic to their stores. In June 2013, we launched http://www.amazon.in">www.amazon.in for shoppers in India. With http://www.amazon.in">www.amazon.in, we endeavor to give customers more of what they want – low prices, vast selection, fast and reliable delivery, and a trusted and convenient online shopping experience. In just over a year of launching our India operations, we have expanded our offering to over 18 million products across 36 departments and 100s of categories! Our philosophy of working backwards from the customers is what drives our growth and success.
We will continue to strive to become a trusted and meaningful sales and logistics channel for retailers of all sizes across India and a fast, reliable and convenient online shopping destination for consumers. For us, it is always “Day 1” and we are committed to aggressively invest over the long-term and relentlessly focus on raising the bar for customer experience in India.
Amazon India offers opportunities where you can dive right in, work with smart people on challenging problems and make an impact that contributes to the lives of millions. Join us so you can - Work Hard, Have Fun and Make History.
Company profile
We are the pioneering player in the FinTech industry in India in the institutional credit space. We have created a one of a kind online marketplace for institutional credit ‘CredAvenue’, bringing together issuers and lenders, while also participating in the marketplace through their own balance sheet. Within a short span of two years, CredAvenue has gained immense traction and boasts of multiple clients across sectors, 120+ investors across multiple segments and a high volume of credit deal closures. To read about the latest numbers we have clocked, please visit http://www.credavenue.com">www.credavenue.com.
We are backed by two of the leading global Private Equity firms and have also been successful in attracting high quality talent from some of the leading companies and universities globally. With the fundamentals in place, we are now gearing up for our next phase of high growth, and we are further building up our team to take the company to the next level.
Primary Responsibilities
- Responsible for full software life-cycle, system design and development of front-end & back-end systems
- Writing high-quality code, participating in code reviews, designing/architecting systems of varying complexity and scope
- Identify libraries and technologies worth experimentation
- Build innovative solutions from scratch and liaise with architects and engineers to build solutions
- Mentoring other team members
Required Skill
- Degree in Computer Science or relevant experience
- 2-7 years of relevant hands-on software engineering experience doing software design and development
- Proven experience of working on back-end web frameworks like RoR (preferable) or Python/Django or Node.js
- Good command over at least one JavaScript frameworks like React.js, Vue.js or Angular
- Excellent understanding of relational database structures, having knowledge of unstructured databases (NoSQL) will be an added advantage
- Expertise in object-oriented design, unit testing, integration testing, data structures, algorithms, scalable APIs, etc.
- Knowledge of working on cloud technologies and exposure of AWS services (EC2, RDS, S3, etc)
- Work in a fast-paced environment and make pragmatic engineering decisions in a short amount of time
- Experience with Agile Development and Scrum methodologies.
Work Environment Details
- An opportunity to play a formative role in an ambitious financial services marketplace spanning investment banking, debt capital markets, institutional finance, retail lending and asset management
- A journey that will challenge and reward you in a manner few others will










