ROR Developers

Oister Global (www.oisterglobal.com) is India’s premier Alternative Assets Manager. We combine robust diligence, deep domain expertise, and an extensive network to create high quality private market opportunities for our investors.

We are seeking a Senior Backend Developer who will be pivotal in architecting and developing scalable, reliable backend systems from scratch. You will work closely with product managers, designers, and other engineers to build new products, design backend architectures, and ensure high performance and responsiveness of the systems. This role requires strong backend fundamentals, cloud experience, a deep understanding of databases, and a passion for system design and architecture.

Key Responsibilities:

● Product Development: Architect, design, develop, test, and deploy new backend products and features from scratch.

● System Design: Take ownership of system design and architecture decisions for new modules, ensuring scalability, reliability, and security. ● API Development: Build efficient and reusable APIs and backend services using Node.js.

● Database Management: Design data models, optimize queries, and manage MongoDB clusters efficiently.

● Cloud Management: Deploy, maintain, and optimize services on AWS, ensuring high availability and performance.

● Best Practices: Maintain coding standards, ensure code reviews, and champion best practices in security, testing, and maintainability.

● Collaboration: Work closely with frontend developers, product managers, QA, and other cross-functional teams to define, design, and ship new features.

● Performance Optimization: Monitor system performance and ensure system uptime and responsiveness.

● Mentorship: Provide guidance and mentorship to junior developers as required.

● Documentation: Maintain thorough documentation of systems, processes, and best practices. Must-Have

Qualifications:

● Education: Bachelor’s degree in computer science, Software Engineering, or a related technical field.

● Experience: 4–5+ years of hands-on backend development experience.

● Expertise in: Node.js (Express.js, Nest.js or similar frameworks) MongoDB (including indexing, replication, sharding concepts) AWS Services (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, IAM, etc.) Proficient in: System design principles Microservices architecture Event-driven architecture Strong understanding of: RESTful APIs.Authentication and authorization best practices (OAuth, JWT) Experience with: CI/CD pipelines Docker and containerization principles Hands-on experience in: Building scalable, distributed, and fault-tolerant systems Good knowledge of : Logging, monitoring, and debugging distributed applications

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

Tech CoFounder wanted for our startup. We're building a TikTok of dashcam type videos to allow users to capture interesting scenes or moments from across more than 6 crore kms of roads globally. This solution can have a lot of Connected Mobility potential at the back.

It's a short videos app meant for dashcam style videos getting recorded but from the user's smartphone (placed on a holder in a car or on a bike or in the users hands as well)

The individual should have knowledge of Full stack mobile app development preferably in Kotlin and MEAN stack along with the ability to deploy things on cloud (AWS) A plus point if he OR she knows about iOS app development as well. Bigger plus point will be the ability to move quickly with regards to developing and rolling out features for users at lightening speed.

*Salary mentioned is the salary we both can draw once the initial set of investors come on board and we can raise north of US$ 100k in the first round. You will be entitled to 30-35% equity in exchange of your initial tech development efforts.

Salaries will obviously go up as we raise more rounds and so will the value of our equity go up during each fund raise.

Responsibilities 

Design, implementation and delivery of solutions.

Solving new problems and address any issues regarding the architecture and performance. 

Focused on understanding customer needs and anticipate the changing business and technology landscape. 

Collaborate with teams from various verticals within and outside the company.

Qualifications 

2-5 years of Software Engineering experience in Node.js and React. 

Proven experience in architecting performant, complex application on web or mobile applications. 

Knowledge of end to end Software development life cycle.

Ability to work individually or in teams and mentor new developers to the team.

Strong knowledge of computer science, algorithms and design patterns. 

A degree in Computer Science or related field, or equivalent industry experience.

Job Description :

9 to 12 years' experience in software engineering

Bachelor's degree in computer science or engineering discipline

• Strong coding and debugging skills with experience in web technologies including one or more of the following: React, Angular, Node, D3 (Java API's Javascript etc.), AJAX, CSS
• Worked with authentication technologies like SAML, OAuth, SSL etc.
• Hands on experience with one or more web and application server technologies such as Apache Tomcat, Nginx, Jersey server, OSGi and other relevant frameworks
• Hands on experience with code control and code review tools like Git, Gerrit
• Good exposure to databases, SQL queries
• Fast executor with a track record of delivering complex projects on time; responds under pressures of time and uncertainty
• Strong written, editing, proofreading and oral communication
• Strong inter-personal communication and collaboration skills.
• The candidate must be able to work independently & must possess strong communication skills.
• A good team player, high level of personal commitment & 'can do' attitude.
• Strong communication skill to communicate at all levels, which includes interaction within the team & with senior management.
• The candidate should have proactive approach towards problem solving.
• Good analysis skills in order to troubleshoot and resolve the problems.

About the Company

InnKey is an integrated Hotel ERP on Cloud. We help mid-upscale Hotel Chains run their entire operations on a single platform completely on cloud. We cater to all the departments of a hotel ranging from Reservations and Front Desk to Housekeeping and Maintenance to Point of Sale and Banquets and Conferencing to Material Management and Purchasing to Financial Accounting and MIS.

Our entire solution is on Cloud making it accessible anytime and anywhere which completely changes the operational landscape for any Hotel Chain.

We aim to become a single point solution for every Hotel Chain whether they have 10 or 1000 hotels. Our goal is to help our customers streamline their operations, increase their topline and maximize their bottomline.

What You’ll Do:

• You’ll work with others to build new product features from start to finish: through conception, research, implementation and maintenance
• Ability to ship code that allows for high availability and good performance are a must in a mission critical software like ours
• Contribute to all phases of software development
• Be adaptable to work in a fast-paced environment

What We Are Looking For:

• Thoughtful problem-solving: For you, problem-solving starts with a clear and accurate understanding of the context. You can decompose tricky problems and work towards a clean solution, by yourself or with teammates. You're comfortable asking for help when you get stuck.
• Shipping quality user interfaces: You can work with others to build and maintain quality user interfaces for a big audience, using Web technologies like HTML, CSS, JavaScript, and a modern UI framework like Angular. If you've experienced the technical challenges of rapid growth, that's a plus.
• Familiarity with the backend: You understand how parts of a system fit together—from the user interface to the data model. Experienced candidates should be familiar with relational database systems like MS SQL and backend technologies like .NET
• Pragmatic and business-oriented: You care about the business impact of what you're building, and you prioritize projects accordingly. You're not just going after cool stuff—you understand the balance between craft, speed, and the bottom line.
• Team player: You understand when work is better, together. You enjoy collaborating cross-functionally to accomplish shared goals, and you care about learning, growing, and helping others to do the same.

Our ideal candidate is comfortable collaborating with Product Owners, UX and UI Designers, Data Scientists and senior technical team members to build sound solutions to complex business challenges. A Self-starter and problem-solver will thrive in this position.

You should be strong JavaScript developer comfortable in all areas of the software development lifecycle and have experience with React, Node, Mongo, MySQL and Express in a scalable production environment. Some Python and familiarity with AWS would be welcomed.

Focus Areas and Core Responsibilities

Accountable for day-to-day implementation and launch of product roadmap features and updates.

Collaborate with Data Science, Tech and UX teams to create systems design and information architecture based off of user stories and requirements. Ensure test cases are properly written.

Maintain and work on the continuous improvement and development of company tools.

Coordinate with dev ops and QA to ensure continuous integration and deployment of production ready code.

Skillset, Qualifications, and Experience

• 5+ years of web application development experience including strong working knowledge of JavaScript, ReactJS, NodeJS, Mongo and Express.
• Familiar with asynchronous programming and object-oriented programming best practices. Must have prior experience with MVC design pattern
• Experience with node and linux commands necessary for debugging installations and deployment locally and on cloud services such as AWS
• Strong familiarity with a variety of APIs and RESTful interfaces
• Familiar with various methods for performance optimization
• Ability to work with UX/UI team to create a frictionless user experience and pixel perfect web components and data visualizations
• Experience integrating security best practices into the SDLC
• Expert level Git, including branching and best practices to resolve merge conflicts
• 1+ years of Agile development experience
• Experience manipulating and working with data in a variety of forms: csv, xml, json, structured and unstructured
• Excellent communicator who can work independently and be a team player
• Passion for Technology: excitement for new technology, bleeding edge applications, and a positive attitude towards solving real world challenges