

About Dhwani Rural Information Systems
About
Dhwani Rural Information Systems is a development-focused technology firm with a mission to equip organizations operating at the BoP level with information and communications technology (ICT) solutions that are smart, integrated, and inexpensive. They are a social impact initiative that is technology-driven. They provide organizations in the development sector and social entrepreneurs with the ability to successfully manage and monitor their programs by utilizing ICT and tech solutions.
Dhwani RIS was established in 2012 as a result of the underlying enthusiasm of the founders to harness the power of technology for the sake of social change. During one of Sunandan Madan and Swapnil Agarwal's internships at the Institute of Rural Management in Anand, the two founders of Dhwani came up with the concept that would eventually become the company. In the course of their close collaboration with rural NGOs and organizations functioning at the BoP level, they saw that these groups were still falling behind in terms of their technological adoption; hence, they identified a need.
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Who You Are:
- You’ve built scalable, production-ready APIs in fast-paced environments, and are comfortable with the challenges that come with a growing startup.
- You understand event-driven architectures and have hands-on experience building real-time applications.
- You are fully capable of taking ownership of backend systems, from designing the database schema to writing efficient, maintainable code.
- You think beyond the code: optimizing performance, scalability, and security are as important as building new features.
- You’re comfortable troubleshooting complex issues, whether that’s API bottlenecks, database performance, or production issues.
Responsibilities:
- Design, implement, and manage a NestJS backend with a modular, scalable architecture that can easily handle real-time events and communication.
- Develop and maintain WebSocket services for real-time event-driven updates and ensure seamless communication across the system.
- Integrate RabbitMQ for reliable internal messaging, handling queues and ensuring event-driven workflows are efficient and fault-tolerant.
- Implement database management strategies using MongoDB, Redis, and Elasticsearch, ensuring efficient data handling, indexing, and optimization.
- Integrate with external APIs (JSON-RPC, XML-RPC, REST) to enhance system capabilities.
- Ensure high performance of the system by optimizing database queries, implementing caching strategies using Redis, and ensuring optimal indexing and data flow.
- Implement role-based authentication and authorization mechanisms using JWT, OAuth, and RBAC patterns within NestJS.
- Follow security best practices to ensure sensitive data is protected, credentials are stored securely, and the system is resilient to common vulnerabilities.
- Work collaboratively with cross-functional teams to ensure seamless integration between different services and technologies.
Must-Have Skills:
- Strong proficiency in Node.js and NestJS with TypeScript.
- Solid experience with MongoDB, Redis, and Elasticsearch for data storage and real-time data handling.
- In-depth knowledge of WebSockets and Socket.IO in NestJS Gateways, enabling real-time communication and updates.
- Experience with RabbitMQ for message queuing and asynchronous task handling.
- Strong understanding of authentication & authorization systems using JWT, OAuth, and RBAC (Role-Based Access Control).
- Expertise in optimizing APIs, including techniques for caching, improving database performance, and reducing latency.
- Familiar with API security best practices, including secure storage of credentials, encryption, and safeguarding sensitive data.
Key Skills:
- TypeScript, NestJS, WebSockets, Socket.io
- Redis, MongoDB, Elasticsearch, RabbitMQ
- API Optimization, JWT, OAuth, RBAC
- Real-time communication, Event-driven architecture


according to our company’s needs. You will be responsible for planning, developing,
testing, improving and maintaining new and existing databases to help users retrieve
data effectively. As part of our IT team, you will work closely with developers to ensure
system consistency. You will also collaborate with administrators and clients to
provide technical support and identify new requirements. Communication and
organization skills are keys for this position, along with a problem-solution attitude.
You get to work with some of the best minds in the industry at a place where
opportunity lurks everywhere and in everything.
Your responsibilities are as follows.
• Working cross functional teams to develop robust solutions aligned with the
business needs
• Maintaining communication, providing regular updates to the development
team ensuring solutions provided are fit for purpose
• Training other developers in the team on best practices and technologies
• Troubleshooting issues in the production environment understanding the root
cause and developing robust solutions
• Developing, implement, maintain and solutions that are both reliable and
scalable
• Capture data analysis requirements effectively and represent them formerly
and visually through our data models.
• Maintaining effective database performance by identifying and resolving
production and application development problems
• Optimise the integration and installation of new releases
• Monitoring system performance, test, troubleshoot and integrating new
features
• Proactively recommending solutions to improve new and existing database
systems
• Providing database support by coding utilities, resolving user questions and
problems
• Ensuring compliance to database implementation procedures
• Performing code and design reviews as per the code review process
• Installing and organising information systems to guarantee company
functionality
• Preparing accurate documentation and reports
• Migration of data from legacy systems to new solutions
• Stakeholders’ analysis of our current clients, company operations and
applications, and programming requirements
• Collaborate with functional teams across the business to deliver end-to-end
products, features enabling enhanced performance
Required Qualifications:
We are looking for individuals who are curious, excited about learning, and navigating
through the uncertainties and complexities that are associated with a growing
company. Some qualifications that we think would help you thrive in this role are:
• Minimum 8 Years of experience as a Database Administrator
• Strong knowledge of data structures and database systems
• In depth expertise and hands on experience with MySQL/MariaDB Database
Management System
• In depth expertise and hands on experience in database design, data
maintenance, database security, data analysis and mining
• Hands-on experience with at least one web-hosting platform such as Microsoft
Azure, AWS (Amazon Web Services) etc.
• Strong understanding of security principles and how they apply to web
applications
• Basic knowledge of networking, Desirable knowledge of business intelligence
• Desirable knowledge of data architectures related to data warehouse
implementations
• Strong interpersonal skills and a desire to work collaboratively to achieve
objectives
• Understanding of Agile methodologies
• Bachelor/Masters of CS/IT Engineering, BCA/MCA, B Sc/M Sc in CS/IT
Preferred Qualifications
• Sense of ownership and pride in your performance and its impact on company’s
success
• Critical thinker, Team player
• Excellent trouble-shooting and problem-solving skills
• Excellent analytical and Strong organisational skills
• Good time-management skills
• Great interpersonal and communication skills

Tagalys provides intelligent merchandising solutions to mid-sized e-commerce brands around the world, like LEGO, Fila, Crocs, Tink, Ana Luisa, Ritu Kumar, EQVVS, Lack of Color, and Apollo 247. Our products include category merchandising tools, search, recommendations, and a full analytics suite. Over the last three years, we have scaled from a two-person founding team to over 15 people. During this time, we’ve received amazing customer reviews on the quality of the product, and our customer support & success.
About the role
We are looking for a backend developer to help us execute our product roadmap faster. You will design, spec, develop, test, and deploy new features that can scale.
Your work could be related to:
- Defining new merchandising or reporting functionality
- Adding more advanced search capabilities
- Improving scoring/recommendation models
- eCommerce platform integrations/API implementations
- Load testing/scaling features as we continuously grow
- Something new. There are always interesting new challenges that come our way. Here are a couple of things we’ve worked on recently:
- Managing background jobs with competing performance goals like quick turnaround while staying within platform API limits
- Embedding and dynamically changing products in an email even after sending it
- Managing and coordinating multi data-center processes
Requirements
- 1-3 years of experience in Ruby On Rails (or a similar MVC framework like Express or Django). You are comfortable with Routes, Migrations, Models, Callbacks, Validations, and so on.
- Ability to design clean, scalable data structures for new features.
- A good understanding of design patterns so that complex processes are written in a maintainable way.
- Knowledge of managing source code with Git.
- Comfortable in a Linux OS.
- Good communication skills, and ability to clearly plan and describe features before building.
Benefits
- Challenging, exciting work, at scale
You get to understand the challenges our customers face first-hand, and collaboratively design and build amazing solutions that will be used by millions of shoppers through billions of API requests. There’s always something new and exciting to build. - Have a direct impact
Seven engineers currently build, refine, and scale the entire product. Working in a small team means you will have a say in the way the product is built, and your performance will have a direct impact on the company’s outcome. - Culture
Tagalys is a place for you to be yourself, enjoy your work, and achieve your potential. We love the energy that comes from working with smart people in a simple and welcoming environment. We design our workflow to make sure you are also able to focus on everything else in life that is important: family, friends, and health. - Benefits
You get great pay, coupled with flexible hours, a hybrid work model, and comprehensive insurance for your and your dependents. For the people contributing significantly, we also offer ESOPs so there is an opportunity to build wealth as you help the company grow.
- Good skill on NodeJS, Angular 4+, MongoDB, and MySQL
- Having Good knowledge of AWS serverless technologies (Lambda) and other services like EC2, S3 SES, and others.
- Must be passionate about writing clean, efficient, and maintainable code.
- Self-starter with the ability to cope with sharp learning curves.
- Primary: NodeJS, MySQL, MongoDB, AngularJS, ES6 Additional: Angular 2.x and Angular 4




- Participate in brainstorming and technical ideation for projects with product, growth, and engineering
- You will design Scalable and Fault-Tolerant systems
- You will help Maintain critical and auxiliary systems (databases, cache ...)
- You will build Experiments that help validate hypotheses for the product
Experience:
2+yrs In your first 3 months, you will…
- Successfully onboard and create strong bonds with the current team
- Participate in brainstorming and technical ideation for projects with product, growth, and engineering
- Contribute to existing product features and experimentation
In your first 6 months, you will…
- Develop prototypes of new features or products using rapid iteration and experimentation as we explore new ideas
- Partner across the engineering team to ship features
In your first year, you will...
- Champion best-in-class engineering practices and systems for an emerging engineer team
- Help build a suite of features for the product
Our Ideal Hire:
- Learned best practices and has experienced the challenges and joys working at a startup
- Managed and maintained production code at increasing scales
- Feels strongly motivated by our mission
- Communicates complex problems and proposes solutions, in writing and in conversation
Expertise:
- Proficiency in any one language (ex: NodeJS / Go / Python)
- MySQL (design / indices / optimizing queries)
- Redis (types/ functionality/ use cases)
Hands-on experience:
- Handled scaling issue
- Good at debugging
Good to have:
- Kafka (or other stream-processing software)
- AWS
Do not apply if you are not:
- Ownership driven
- Curious in general
- Able to explain things in simple terms
- Self-motivated
- Use to work in the chaotic environment
- Highly proactive
- Willing to Mentor and humble to ask for collaboration
- Most important, Learn & Grow yourself!
- Hungry to grow anymore
We're looking for Senior Node js backend developers with over 2+ years of experience and strong expertise in Javascript based development using Node js and Express. We are looking for cadidates who are go-getters and are leaning towards leadership positions. Candidates must have a proven history of building, scaling, optimising and securing Node js based backends and APIs using a microservice architecture.
Bonus Skill : Experience with ReactJs, Postgres
We would prefer candidates who can join immediately or are currently serving their notice period.
Key Skills Required
-
A passion for Javascript based solutions and an extremely strong understanding of JavaScript
-
Proficiency in Node js and Express based development
-
Stong experience in building scalable REST APIs
-
Experience in implenting API security using tokens, encryptions keys and other methods
-
A proved history of building scalable and secure web applications and APIs with Node js using a microservice architecture
-
Working experience with API Gateways
-
Experience with Docker
-
Experience in maintaining code via Git workflows
-
Ability to work independantly or as a part of a team
-
Ability to work in an Agile environment
Responsibilities
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Understanding requirement and congributing to engineering solutions at a conceptual stage to provide the best possible solution to the task/challenge
-
Building high quality code using coding standards based on the SRS/Documentation
-
Building component based, maintainable, scalable and reusable backend libraries/modules.
-
Building & documenting scalable APIs on the Open Spec standard
-
Unit testing development modules and APIs
-
Conducting code reviews to ensure that the highest quality standard are maintained
-
Securing backend applications and APIs using industry best practices
-
Troubleshooting issues and fixing bugs raised by the QA team efficiently.
-
Optimizing code
-
Building and deploying the applications
• 3+ years of hands-on software engineering experience in Node.js and Typescript (including
Express, Feathers.js or similar)
• Proficient at programming and interacting with APIs
• Strong understanding of production systems, especially in AWS
• Deep understanding of mobile backend infrastructure including service-oriented or microservice architecture
• Customer-focused, reacts well to changes, work with teams and able to multitask
• Must be a self-starter who can work well with minimal guidance and in fluid environment
Bonus if you have the following:
• Experience in React and/or React Native
• Active contributor to developer communities like Stackoverflow, Topcoder, Github etc.
• Worked with Linux
• Prior startup experience
Node.js and frameworks available for it - Express, StrongLoop, etc
Understanding the nature of asynchronous programming and its quirks and workarounds
Integration of user-facing elements developed by front-end developers
front-end technologies - HTML5, and CSS3
Writing scalable, reusable, testable, and efficient code


