
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.
• Experience with AngularJS or BackboneJS.
• Familiarity with MVC, Mocking, RESTful, and ORM.
• Good understanding of front-end technologies including HTML5, JavaScript, and CSS3.
• Knowledge of server-side templating languages including Slim and Liquid.
- Databases- MongoDb, Postgres.

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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
You will be working on:
- As a senior backend engineer, you will be expected to execute and deliver large and complex projects end-to-end, with or without the involvement of other team members
- Ensuring timely delivery of all product deliverables
- Play a key role in technical discussions within the team and be the go-to person for the team for guidance and troubleshooting
- Understand key Business and Engineering metrics around performance, quality, and availability and work regularly with the team to push the boundaries and improve them periodically
- Proactively participate in code reviews and architecture and design discussions
- Mentoring junior engineers and setting best practices for coding, code reviews, etc.
- Help the organization in building a top-quality team by participating in hiring initiatives and evangelizing about contributions, accomplishments, and victories
We are looking for:
- Strong and self-motivated individuals, should be able to independently drive decisions
- Solid experience in building web-based products
- Overall of 4+ years of expertise in at least one dynamic programming language and one MVC web framework, preferably Ruby on Rails
- Expertise in Database modeling, preferably relational DB, spotting DB bottlenecks, and writing optimized DB queries
- Expertise in all common Cloud technologies, preferably AWS. Knowledge of CI/CD tools and workflows
- Proven track record in building highly-available and scalable distributed systems
- Willingness to play and explore with new technologies and be a Subject Matter Expert and support them
- Someone who believes in small incremental improvements and is passionate about refactoring
- A keen eye for quality with regards to following and establishing good coding practices, improving code coverage
- Good stakeholder management, ability to build trust and rapport with internal and external stakeholders
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
Company Introduction
Mintifi is a growing Fintech startup and has a presence in pan India. We are moving towards lightning fast business loans using data-driven decision-making.
Job Description
We are looking for a Ruby on Rails developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.
Responsibilities
- Design, build, and maintain efficient, reusable, and reliable Ruby code
- Integration of data storage solutions
- 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
- 3+ years of experience in Ruby / RoR
• Experience with data files processing (xls, csv, json, xls, text: 834, NACHA, segments)
• Experience working with relational databases (PostgreSQL)
• Experience with Git
• Good written and spoken English (Intermediate and higher)
• Experience deploying Rails applications
• RESTful API, JSON API
Will be a plus:
• Experience working with Unit and Integration Testing (Rspec, Capybara)
• Experience of integration with 3rd party systems and services and cloud technologies ( AWS stack: EC2, RDS, S3, etc.)
• Experience with RuboCop, JSHint/JSLint
• Experience with Microservice Architecture
• Knowledge of HTML5, CSS3
• Experience working with modern JavaScript frameworks — Ember.js, Vue.js
THE POSITION:
- 3+ years of relevant experience in designing & implementing scalable, resilient backend microservices
- Expert at any backend programming language (Python/GoLang preferrable) and has exposure to API design and scalable architecture
- Hands-on experience on a couple of RDBMS/NoSQL/In-memory DBs
- Great database modelling skills
- Ability to choose the right algorithm, data-structure, and design pattern for the given problem statement
- Knowledge of any cloud based platform like AWS or GCP and scaling on the go
- Understanding of various application security principles and experience with building applications secure by design
QUALIFICATION:
- We don't care about which college you are from, if you have the power to convert coffee into code, we got you.
Our client is an expert in education financing and counselling related to higher studies abroad. They help students to understand about scholarships in various colleges abroad, whether they are eligible and how to apply for such esteemed institutions. Their dedicated page enlists every scholarship available across the globe, apart from other facilities required by students like visa counselling, forex, accommodation, Peer contacts etc.
They also offer the best resources for exams like IELTS, TOEFL and GRE apart from organising webinars and events to connect with industry experts, alumni and fellow students - which helps to prepare for travels, loans and more. Partnered with the most prominent Banking and non-banking financiers, the team is led by FinTech-experienced IIT Kanpur alumni, passionate about offering sustainable financial offerings.
- Improving customer experience, not only for borrowers but also other partners on the platform
- Ensuring seamless integration with data/ service providers and lending partners
- When not doing any of the above, writing tests to prevent any regressions
What you need to have:
- Must have skills:
- Good Experience in Ruby On Rails
- Experience in Modular Javascript programming
- Self-starter: Someone who can develop independently
- Passionate about problem-solving, ability to see the big picture
- Realizes the value of 80-20
- Good to have skills:
- DevOps experience (Managing web application on AWS)
- Prior experience in the Fintech or Banking industry as a tech role.
- Test case writing
Software Developer: 1 to 4 yrs
Sr. Software Developer: 4 to 8 yrs
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Immedieate joiners are preferred or those who cn join withn 15-20 days. - B.Tech in Computer Science from premier institute (IIT/NIT/IIIT)or equivalent work experience - 2 years’ experience developing Backend systems - Good understanding of algorithms and data structures - Knowledge of Cache, Queues, NoSQL & RDBMS(Mysql) - Proficiency in PHP/Python/Ruby/Java - Experience with MVC architectural pattern / framework like Django, ROR, Node.js - Experience of object-oriented programming / modular programming - Ability to multi-task, work with ambiguity and quickly re-prioritizing responsibilities - Experience with Agile software development - Knowledge of testing performance & stability using tools - Experience with either Github or GitLab, Confluence, & Jira
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Professional experience required: Total experience: 2+ Years
Industry/Role experience: - 2+ years’ experience developing Backend systems - Experience with Agile software development
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Behavioral Attributes: - Must have excellent communication skills - Must be the ability come up with innovative ideas and out-of-the-box solutions - Must be willing to challenge conventional methods to achieve exponential results |
Opportunity in our Product Team?
Our system has over 4 products & 12 modules designed by product managers working with banking & finance experts. The company’s growth from here is based on a multi-product strategy. The way we’re scaling our product team is in-line with the company’s strategy.
Your customers are the CFOs & Finance Teams in mid to large scale enterprise businesses and you will build these products to solve the problems faced by them.
You’ll become familiar with all parts of our stack from end to end. You’ll design and implement features to be scalable and resilient by working with both our infrastructure engineers and our product engineers. You’ll be a driver for positive change to Finly’s engineering culture, processes and technology.
Here are some examples of the projects in the different products:
Payment automation by building a deep integration with multiple banking systems:
- Governance frameworks with policy controlled workflows.
- Core finance document management system.
- Automating reconciliation of transactions across business
- Collaboration tools among finance, vendors & employees.
- Continuous ETL for integrating with CRMs like Salesforce & Accounting Systems like SAP.
WITHIN 1 MONTH, YOU'LL
- Complete Finly’s new-hire training week, and learn Accounts Payable
- Processes & the various partners we work with to make Finly happen.
- Investigate, solve and release a bug fix to production. In order to do this you will ramp up on Finly’s engineering stack by pair-programming with your teammates and attending engineering training sessions designed and presented by the team.
- Meet with cross-functional peers around the company to learn how the product functions.
- Complete your engineering starter project and deploy your first changes to production.
WITHIN 3 MONTHS, YOU'LL
- Individually contribute reliably ship full features to customers.
- Own major product areas and take features from mock to deploy.
- Estimate technical scope and time to complete major features and initiatives.
WITHIN 6 MONTHS, YOU'LL
- Move to new product vertical & initiative and start designing and architecting scalable systems as per the requirements discussed with Product Manager.
- Have made a visible impact on the product for all the users of Finly.
- Work closely with your team to remove roadblocks, educate on best practices and improve how we work.
- Be comfortable navigating most of our stack and infrastructure
- Be responsible for the planning, scoping, design, and implementation of new features
- Participate in interviewing and hiring, as a way to influence team growth and how our values inform our culture
WITHIN 12 MONTHS, YOU'LL
- Individually contribute and lead teams to reliably ship full features to customers.
- Estimate technical scope and time to complete major products and initiatives.
- Define tools and standards for product engineering to measure performance impact of releases
- Help grow other engineers technically by mentoring, pairing and developing other learning opportunities
- Collaborate with engineering and product leadership to define priorities and set delivery goals.
So in this role, you will work with the respective team’s product manager and other engineers in that team. You may work on the front-end or backend or both based on the requirement of the project.
Join us & have the authority and responsibility to make things happen!
We are looking for passionate engineers and researchers that want to contribute in this exciting and fast moving field of Deep Learning and Research.
- Designing, building, and maintaining efficient, reusable, and reliable Ruby and Rails code.
- Helping maintain code quality, organization and automation Identifying bottlenecks and bugs and devising solutions to these problems
- Ensuring Integration of data storage solutions (may include databases, key-value stores, blob stores, etc)
- Need immediate joiners
- B.Tech/ BE in Computer Science, Computer Engineering equivalent Good knowledge of ruby language
- Good knowledge of Rails Framework along with other common libraries such as RSpec and Resque
- Good knowledge of Mysql database Good knowledge of data structures, algorithms, oops
- Good technical knowledge of computer fundamentals
- Excellent knowledge of scrapers/ web spiders Expert-level object-oriented analysis and design skills
- Good understanding of the syntax of Ruby and its nuances
- 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)
- 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)







