RoR developer

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

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.

This is a temporary full time/freelancer role.

Requirements: 

• - Write well designed, testable code in popular Javascript frameworks like React, Angular etc. and Ruby/Ruby on Rails.
  - A good exposure to both SQL and NoSQL database architectures.
• - Ability to write well documented and testable scripts to automate some processes, preferably using Javascript and/or Ruby.
• - A strong problem solving mindset.
• - Excellent oral and written communication skills.
  - Ability to work collaboratively in teams, with a self-starting, entrepreneurial and ownership mindset.
• - Experience working on Open Source projects is a big plus

Responsibilities:               

• - You will be responsible to work on key issues for one of our dashboard platforms, and collaborate with other developers and the product team to drive the product development forward.
• - You will be expected to take ownership of the work you do, and the dashboard platform that you will be working on.
• - You will be also responsible to train future developers on the platform you'll be working on, once they join your team.
• - At times you will be required to communicate and collaborate with our dashboard implementation partners on a technical front, to discuss roadblocks, potential future roadmaps and improvements, along with our engineering and product teams.
• - You will be required to attend weekly cadences with the team to discuss updates and future goals, brainstorm on some problems and give key updates on deliverables on behalf of the team you'll be working with.

DeepSource is working on building tools that help developers ship good code. There are over 40 million developers in the world, and all of them write and review code in some form. The Language Engineering team works on the source code analyzers, including both programming languages and configuration-as-code systems. As a member of the Language Engineering team, you will work on building the best, most comprehensive, Ruby analyzer in the world. You will add new rules and Autofixes for finding more issues with code and automatically fixing them. You will be involved with the community to understand the problems with static analysis tools in the Ruby ecosystem.

• Identify bad code practices in Ruby and write new analyzers to detect them.

• Improve the coverage of automatically fixable issues.

• Ensure fewer false-positives are reported by the analyzer.

• Work on the internal tools that support analysis runtimes.

• Contribute to open-source static analysis tools.

• Strong foundational knowledge in Computer Science.

• At least 3 years of professional software development experience in Ruby.

• Understanding of the nuances of execution of the source code (AST, data flow graphs, etc).

• Familiarity with Ruby best practices followed in the industry.

• Native experience with Linux/Unix environment.

• A focus on delivering high-quality code through strong testing practices.

We offer competitive compensation with meaningful stock options, a generous vacation policy, and a workstation of your choice, to name a few of the perks.

Experience: 5+ Years

An  Architect  is a hands-on, talented, innovative, and practical individual with functional experience to design, implement and support the delivery of core products and product components.  

• Capable of working under minimal direction and exercising considerable latitude, they will provide technical expertise in developing solutions to complex software engineering problems, which require frequent use of ingenuity and creativity.
• Experienced in designing application framework solutions, performing architectural analysis, and identifying issues and provide solutions for the business problems.
• Sound functional knowledge of application architecture service architecture, code modularity, data synchronisation, customisable workflow management, partner application integration and API developer frameworks.
• Responsibilities:
• Lead the design and development of new architecture and major functional upgrades for the most advanced capabilities 
• Provide technical guidance and mentorship to engineers, designers, and developers.
• Engage cross-organizational teams such as Product Management, Integrations, Services, Support, and Operations, to ensure the success of overall software development, implementation, and deployment.
• Requirements:

Ideal candidate should have

• 7+ years of system implementation experience 
• Experience with any of the following languages like Java / Nodejs / ROR / Python
• Expertise in micro service / Data modelling / AWS / Messaging
• Expertise in building scalable & reliable systems
• Good Experience in working with technologies like AWS, Redis,
• Experience in messaging systems like SQS/RabbitMQ
• Good knowledge of caching, Databases, distributed systems.
• Strong problem solving and analytical skills
• Good experience with Devops

• Work with product owners, architects, developers, testers, and other stakeholders in the client's organization and in the company to build and maintain software solutions
• Get specifications/wireframes/ mock-ups and translate them into scalable, high-performance, robust web apps!
• Responsible to write and maintain clean, well-written code, as per the best practices.
• Very comfortable with daily stand-up with clients, update daily work progress via Project Management systems, voice/video calls, online collaboration using screen-sharing tools.
• Exposure/experience in agile development practices

Desired Qualification, Skills, and Experience

• Education: B.E. / B.Tech.

Mandatory Skills:

• Expert level skills in OOPS concepts
• Excellent in Ruby, metaprogramming.
• Excellent knowledge of Rails 4.x+
• Experience in using Rails Engine.
• Full-stack web development expertise (HTML, Javascript, CSS/Less, React, Redux)
• Good experience with active accounts on Git, Github/Bitbucket, or similar SCM tools.
• Excellent debugging and troubleshooting skills [Client side, Server side, Database]
• Knowledge and skills in static code analysis and performance management tools [Client side, Server side, Database]
• Databases: Expert level skills in one or more of MySQL, PostgreSQL
• Exposure to Release, Build Management, Deployment steps, and methodologies.

Nice to have Skills:

• MongoDB, Redis, Memcached, RSpec, Enzyme, Jest
• Experience:2-4 year

• 3+ years of experience with Ruby On Rails.
• Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.
• Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
• Experience in fintech domain will be another added advantage
• Bachelor’s degree in computer programming, computer science, or a related field.
• Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.