
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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Responsibilities:
● Collaborate with engineering, design and product teams to design and ship new
features. Identify and solve bottlenecks and fix bugs.
Desirable Qualifications:
● Deep knowledge of Ruby on Rails (RoR) practices and commonly used modules; deep
understanding of RoR internals like databases, API, caching, proxies, web services,
performance and scalability.
● Experience creating self-contained, reusable, and testable modules and components.
● Experience in SQL and NoSql databases in production environments. Experience
working with Git, AWS/GCP.
● Good communication skills
● 4+ years of relevant experience as a software engineer
Job description
Ruby on Rails Developer Responsibilities :
- Designing and developing new web applications.
- Maintaining and troubleshooting existing web applications.
- Writing and maintaining reliable Ruby code.
- Integrating data storage solutions.
- Creating back-end components.
- Identifying and fixing bottlenecks and bugs.
- Integrating user-facing elements designed by the front-end team.
- Connecting applications with additional web servers.
- Maintaining APIs.
Ruby on Rails Developer Requirements :
- Bachelor's degree in Computer Science, Computer Engineering, or related field.
- Experience working with Ruby on Rails as well as libraries like Resque and RSpec.
- Ability to write clean Ruby code.
- Proficiency with code versioning tools including Git, Github, SVN, and Mercurial.
Gurugram, Haryana, India Engineering
https://apply.workable.com/builderai/j/C5C9E7EE52/ Description About Builder.ai Innovation is fueled by the power of possibilities. A few years ago, it was virtually impossible to innovate because building software needed a degree. It was simply too expensive, too complex, too risky, and ultimately, too inefficient. That’s why only 16% of projects were ever completed on budget and worse yet, 78% failed.
We're changing that. We’re flipping software development on its head and kicking out the notion that you need to be an expert or participate in boot camps to learn how to make an app. Builder.ai’s platform lets you order the perfect software app for whatever problem you’re trying to solve. Our AI-powered assembly line brings together Lego-like reusable features and experts from around the world to bring world-class ideas to life – ANYONE’s world-class ideas. Building software needs to be like ordering pizza – pick what you want, get recommendations for the features you need and all you have to do is wait until it's cooked and ready for you. Our human-assisted AI platform helps anyone build, run & scale tailor-made software. Everyone from the bakery in Riyadh and nursery in London, to large fortune 100 companies like the BBC or Pepsi.
Life at Builder.ai It’s a place where everything moves at lightning speed and it’s certainly not for the faint of heart. We celebrate diversity and push everyone to do more with less, while creating and championing a culture that empowers everyone to experiment, push boundaries and learn by doing. Every Builder runs to our core value system of HEARTT (Heart, Entrepreneurship, Accountability, Respect, Trust & Transparency) and we’re always looking for team players with a point of view, a sense of humility and a let’s-get-stuff-done attitude.
Our scale-up is at the intersection of a quirky startup where designers and machine learning specialists work on problems together and savvy commercial teams working with finance folks to invent new business models. #WhatWouldYouBuild We are looking for a Ruby on Rails developer that brings their own ideas to the table. This person must have significant expertise in ROR, as well as be highly detail oriented and self-driven. Furthermore, they must be able to inspire and mentor others when the need arises. We are looking for someone never says “I do not know how”, or “I have never done that before” - rather a person that says how about we try this
• Architecting and designing scalable backend systems • Integration and development of various microservices • Creating unit tests using RSpec • Reviewing other developers code as well as suggesting improvements
• Algorithm development and general optimization • Setting up CI/CD pipelines • Collaborating with various stakeholders including QA, DevOps, PMs and other developers • At Least 4 years solid experience on Ruby on Rails, including at least one start to finish project where you were the lead developer or a primary contributor. • Solid understanding of deploying and maintaining Rails apps within the AWS environment. • Ability to set up workers and deploy across multiple instances. • Git experience, some would say you are a git master. • If I asked your previous co-workers about you, they would say you were a good team player 6 Months Deliverable: • Collaborate with designers, product managers, and other software developers to deliver compelling user-facing products • Lead teams of developers in architecting efficient and reusable systems that drive complex applications across the stack • Create instrumentation, monitoring, and alerting tools to ensure availability/scalability during peak traffic times and implement solutions to maximize uptime • Identify and resolve performance and scalability issues Requirements • A strong drive and sense of ownership of the challenges we take on, coupled with a team-oriented, can-do attitude • Working knowledge of standard CS fundamentals (data structures, algorithms, complexity analysis) • A professional proficiency in English • A systematic debugging and problem solving methodology • Minimum of four years of experience with Rails 4/5
Benefits • Health and wellness benefits • Performance-based bonuses and stock options • Employee friendly policies • Generous vacation and time off benefits, including paid holidays • Generally flexible working hours
1. As a founding backend engineer, design, build and evolve the backend architecture
of our product to support customer-facing and internal features to serve 1000s of
customers and millions of data requests per hour
2. You will engage in technical decisions from choosing the optimal database design to
best-practice infrastructure decisions
3. You will proactively incorporate best practices for security, analytics, and monitoring
4. You will contribute to DevOps by building procedures for deployment,
troubleshooting, and maintenance
5. You will work directly with the CTO to set the tone for the engineering culture
This role is tailor-made for you if
1. You have 4+ years of experience designing, building, and deploying production-level
large-scale web applications
2. You have hands-on experience with Node JS and other programming languages
(Ruby, Go, Python)
3. You have worked previously on PostgreSQL, SQL, and Message Queue 4. Practical
knowledge and experience in deploying and managing big data applications on a cloud
platform like AWS or Google Cloud.
5. You are comfortable conducting code reviews and giving feedback to ensure high
standards of code maintainability and extensibility.
6. You are energized by ambiguity and can create structure in a dynamic, fast-paced
environment
7. You’ve high confidence, low ego, and are generally a good human being :)
You earn brownie points if
1. You love Slack (we are a Slack first company)
2. You have been part of an early/mid-stage start-up before
3. You love TechCrunch. We are obsessed with reading and talking about startups
4. You have created some amazing open-source projects
Numerator is a data and technology company reinventing market research. Headquartered in Chicago, IL, Numerator has 1,600 employees worldwide. The company blends proprietary data with advanced technology to create unique insights for the market research industry that has been slow to change. The majority of Fortune 100 companies are Numerator clients.
Job Description
What We Do and How?
We are a market research company, revolutionizing how it's done! We mix fast paced development and unique approaches to bring best practices and strategy to our technology. Our tech stack is deep, leveraging several languages and frameworks including Python, C#, Java, Kotlin, React, Angular, and Django among others. Our engineering hurdles sit at the intersection of technologies ranging from mobile, computer vision and crowdsourcing, to machine learning and big data analytics.
Our Team
From San Francisco to Chicago to Ottawa, our R&D team is comprised of talented individuals spanning across a robust tech stack. The R&D team is comprised of product, data analytics, engineers across Front End, Back End, DevOps, Business Intelligence, ETL, Data Science, Mobile Apps, and much more. Across these different groups we work towards one common goal: To build products into efficient and seamless user experiences that help our clients succeed.
About the Role
We’re looking for a well-rounded and passionate Full Stack Software Developer to join our team in creating an amazing client experience. If you’re interested in working on all layers of a system from developing new UI controls to creating flexible and scalable data architectures with the latest technologies and tools then Numerator is for you.
This person should be self-motivated. We’re not big on constant oversight and micromanagement. We’re looking for software engineers that can take a task, get clarity as needed, and run with it to produce well-designed quality code. You need to love to code and care about quality and design.
We understand that iteration is important to good design and development. We need a person who can take iterative steps toward delivering a solution. Working with the business the entire way to stay on target and deliver amazing results.
Skills & Requirements
- Minimum 4+ years of relevant experience in Ruby
- Demonstrated experience working on application development projects and test-driven development
- A strong engineer with excellent Ruby experience working with Ruby on Rails
- Experience with Javascript and related frameworks -- Backbone, Angular, React, etc
- Experience with SQL databases – Elasticsearch is a plus
- Experience with REST services and API design
- Knowledge of unit & integration testing
- Knowledge of agile development process
- Experience with version control systems (Git, Subversion etc.)
Having experience in any of the following would be a valuable asset:
- Experience working with AWS
- Experience working with Node.js
- Basic understanding of the HTTP protocol
- Knowledge of business rules engines
- Programming experience on Unix based infrastructure
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.
Job Description
Viaan Industries Limited is looking for a Software Developer who is motivated to combine the art of design with the art of programming.The ideal candidate for this position will have a broad technical skill set and extensive experience in this industry. As a result, the candidate should be able to design, develop, test and deploy the products required for the company's needs. Moreover, the candidate should be able to work with other developers in determining product strategy.
Responsibilities
- Own the product : Design, Develop & Deploy
- Ensure Quality & sustainability of the architecture
- Obsess about code quality, automated testing, continuous integration, code reviews, and documentation
- Provide quick & creative solutions for day-to-day operational issues
- Assure that all user input is validated before submitting to back-end.
- Ensure the technical feasibility of UI/UX designs.
Required Skills
- Proficient in Server Side Programming Languages :- PHP (Laravel)
- Proficient in design & architecting scalable products.
- Must have hands on experience in Ajax, Jquery.
- Database knowledge – MongoDb.
- Knowledge of Development Tools Bitbucket, Git, CI/CD with BitBucket and JIRA
- Web Server technologies:- Apache, Nginx
- Solid foundation in data structures, algorithms, and system design
- Expert in HTTP terminologies such as Request/Response cycle, content negotiation, CORS etc
- Management of hosting environment, including database administration and scaling an application to support load changes
- Optimization of the application for maximum speed and scalability
- Implementation of security and data protection
- Setup and administration of backups
- Obsess about code quality, automated testing, continuous integration, code reviews, and documentation.
- Exposure to microservices architecture/ API concepts would be an added advantage.
- Good organizational and time-management skills
Good To Have
- Knowledge of NodeJs, Angular
- Familiarity with AWS products - Beanstalk, Elb, ECS, EC2, SNS, SQS, S3, RDS, etc.
Qualifications
- Bachelor’s degree or equivalent in computer science / engineering
• Very Strong knowledge in PHP, MySQL, Javascript etc.
• Solid understanding in PHP frameworks like: Symfony, Codeigniter, Laravel etc.
• Development experience with Wordpress and other E- Commerce CMS.
• Experience of creating highly scalable, robust web applications.
• A solid understanding of the full web technology stacks (i.e. Lamp, Rest, API integration, Version control- Git,
and authentication schemes.
• Good to have development experience in JS frameworks like: Node JS, Angular JS, React Js etc.
• Good to have development experience in HTML, CSS, LESS, SASS, Grunt etc.
• Rigor in A / B Testing, test coverage and other web best practices.
• Familiar with Jira and Scrum process.
• Good to have knowledge on Ruby on Rails.
• Fluent in English Communication.








