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

• 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

• 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

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. 

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.

• 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.

What you need to have:

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.