
Job Title: Lead Backend Engineer
Company: DoubleTick.io (Conversational CRM powered by Meta WhatsApp's API)
Location: Mumbai (on-site)
About the Role
We're looking for a hands-on QA leader to own quality across our products. You'll set the QA strategy, build and scale our automation and testing infrastructure, and lead a growing team — while staying close enough to the work to dig into a tricky bug yourself. This is a high-ownership role for someone who wants to define how quality is done, not just execute test cases.
Key Responsibilities
- Lead and mentor a team of 5-6 backend engineers, ensuring high-quality code delivery, adherence to best practices, and timely project completion.
- Hands-on development using TypeScript, Node.Js, and NestJs to build robust and scalable backend systems.
- Proficient in managing databases PostgreSQL and MongoDB. Implement efficient data storage and retrieval strategies.
- Expertise in Elasticsearch
- Work with Neptune and Gremlin to handle complex data structures and relationships.
- Conduct code reviews, enforce coding standards, and maintain high-quality software.
- Work closely with frontend teams, designers, and product managers to ensure seamless integration and alignment with business goals.
- Plan, track, and report on project progress. Manage resources effectively to meet deadlines.
Required Skills and Qualifications
- Bachelor’s degree in Computer Science or related field.
- Minimum 5 years of experience in backend development.
- Strong proficiency in Node.Js, PostgreSQL and JavaScript
- Strong experience in architecture and database design.
- Proven experience leading a team of engineers.
- Excellent problem-solving skills and attention to detail.
- Proven experience in scaling backend.
- Strong communication and collaboration skills.
- Experience in a fast-paced, agile environment.
- Prior experience in a similar lead role.
Good to have
- Experience with Gremlin, Neptune, MongoDB, Elasticsearch, TypeScript, and BigQuery
- Familiarity with AWS and its cloud-based services
What We Offer
- Competitive salary and benefits package.
- A dynamic and inclusive work environment.
- Opportunities for professional growth and development.
- A chance to work on cutting-edge technologies.
About Us:
DoubleTick is a mobile-first conversational CRM built on the official WhatsApp Business API, designed to unlock WhatsApp-led sales, marketing, and customer engagement at scale.It enables businesses to manage conversations through a centralized team inbox, automate workflows with chatbots and bot studio, and drive growth via bulk broadcasting and analytics. With features like WhatsApp Calling, commerce & cataloging, and role-based access, DoubleTick helps teams streamline operations and improve conversion efficiency.
Backed by Info Edge Ventures and BeeNext, the platform serves 10,000+ businesses across India and UAE in 100+ industries. Leading brands such as MakeMyTrip, Royal Enfield, CoinDCX, Tarun Tahiliani, Times Media, GRT Jewellers, Malabar Gold and Diamonds, Jaro Education, Sabyasachi, and DarGlobal trust DoubleTick to power their customer conversations.

About DoubleTick
About
About DoubleTick App:
DoubleTick is a mobile-first conversational CRM built on top of WhatsApp Business API to unlock WhatsApp's marketing and sales capabilities. It offers top-notch features, including a central team inbox, bulk broadcasting and analytics, bot studio, commerce and cataloging, chatbots, and role-based access. For more details, check out our website: [https://doubletick.io].
Some of the brands powered by DoubleTick include DG Sharaf UAE, GRT Jewellers, D-Link, Raheja Developers, Sabyasachi, Tarun Tahiliani, ICRA, BVC Logistics, RS Brothers, Tupperware, Birla Brainiacs KGK Group, Walking Tree, CKC Group, Malabar Diamonds and Gold, BVC Logistics, Emerald India, Siroya, SabyaSachi, etc.
About Us:
Apport Software Solutions Private Limited is a conversational commerce company empowering global brands with scalable personal commerce and relationship-led sales on WhatsApp, with solutions like DoubleTick (an official Meta Tech Partner) and QuickSell app. Started in 2017, we are on a mission to help global Small and Medium Businesses with a comprehensive end-to-end Business Operating System. We aim to provide all high-quality technology and tools necessary for global SMBs to grow, engage, retain, and monetize their customer base effectively on mobile. Backed by investors from Silicon Valley, Info Edge Ventures, BeeNext Asia, and Upekkha, QuickSell powers more than 10,000 businesses (paid subscribers) across 145+ countries, including brands like GRT Jewellers, Raheja Developers, TATA Aig, AdmitKard, Sabyasachi, Tarun Tahiliani, ICRA, BVC Logistics, RS Brothers, Tupperware, Birla Brainiacs, KGK Group, Malabar Diamonds and Gold, etc.
Candid answers by the company
Empowering SME with scalable personal commerce and relationship-led sales on WhatsApp, with solutions like DoubleTick (an official Meta Tech Partner) and QuickSell app.
Product showcase
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5–10 years of experience in backend or full-stack development (Java, C#, Python, or Node.js preferred).
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•Build responsive, user-friendly UIs using modern JavaScript frameworks (React, Vue, or Angular).
•Develop robust backend services and RESTful or GraphQL APIs using Node.js, Python, Java, or similar technologies.
•Manage and optimize databases (SQL and NoSQL).
•Collaborate with UX/UI designers, product managers, and QA engineers to refine requirements and deliver solutions.
•Implement CI/CD pipelines and support cloud deployments (AWS, Azure, or GCP).
•Write clean, testable, and maintainable code with appropriate documentation.
•Monitor performance, identify bottlenecks, and troubleshoot production issues.
•Stay up to date with emerging technologies and recommend improvements to tools, processes, and architecture.
•Proficiency in front-end technologies: HTML5, CSS3, JavaScript/TypeScript, and frameworks like React, Vue.js, or Angular.
•Strong experience with server-side programming (Node.js, Python/Django, Java/Spring Boot, or .NET).
•Experience with databases: PostgreSQL, MySQL, MongoDB, or similar.
•Familiarity with API design, microservices architecture, and REST/GraphQL best practices.
•Working knowledge of version control (Git/GitHub) and DevOps pipelines.
Understanding of cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).
Good understanding and experience of HTML / CSS / JavaScript.
Hands-on experience with ES6 / ES7 / ES8 features.
Thorough understanding of the Request Lifecycle (including Event Queue, Event Loop,
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Familiarity with security principles including SSL protocols, data encryption, XSS, CSRF.
Expertise in Web Services / REST APIs will be beneficial.
Proficiency in Linux and deployment on Linux are valuable.
Knowledge about ORM like Sequelize and ODM like Mongoose and the ability to handle
DB transactions is a necessity.
Experience with Angular JS / React JS will be an added advantage.
Expertise with RDBMS like MySQL / PostgreSQL will be a plus.
Knowledge of AWS services like S3, EC2 will be helpful.
Understanding of Agile and CI/CD will be of value.
About the Role
We’re looking for energetic, sharp-minded Node.js Developers with incredible algorithmic thinking and real world experience in building scalable systems. If you have 4–6 years of hands-on experience with Node.js and TypeScript, and want to create something meaningful at scale, this is your calling.
- Location: Gurugram (In office)
- Experience: 2–6 years
- Open Roles: 5–10 Developers
- Type: Full time, Permanent
What You'll Do
- Design, build, and maintain efficient and scalable server-side applications using Node.js and TypeScript.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Write clean, modular code with strong test coverage.
- Optimize applications for speed and scalability.
- Participate in code reviews, architecture discussions, and tech brainstorming.
- Strong analytical and problem-solving skills.
- Good verbal and written communication skills.
- Ability to work effectively in a team environment.
- Strong understanding of Agile development methodologies.
- B-Tech in Computer Science, Engineering or a related field.
What We're Looking For
- 4–6 years of experience with Node.js and TypeScript(6 months atleast).
- Strong foundation in data structures, algorithms, and system design.
- Experience working in fast-paced, scalable product environments.
- Solid understanding of RESTful APIs and asynchronous programming.
- Prior experience in a high-growth startup or scalable business is a strong plus.
- Bonus if you come from an IIT or Tier1 engineering background.
Ready to Build the Future?
If you're passionate about backend engineering and want to be part of an ambitious, growing team at Infosec Ventures, we’d love to hear from you.
Apply now and let’s build something extraordinary together!
About the company:
Gigmo Solutions is a fast growing tech. startup with a mission to fundamentally disrupt customer support industry through perfectly tuned symphony of Artificial Intelligence based conversational bots and Gig workers.
With our engineers spread out in 10+ countries across 4 continents, Gigmos is uniquely poised to fundamentally change the technical customers support industry.
Role - Python Developer
Experience 3+ Years
Work Location – Gurugram (Haryana)
Responsibilities
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Integration of user-facing elements developed by front-end developers with server-side logic
- Developing RESTful APIs
- Implementation of security and data protection
- Integration of data storage solutions ( Postgresql,Mysql )
- Design, develop, and maintain web scraping scripts using Python.
- Use web scraping libraries like Beautiful Soup, Scrapy, Selenium and other scraping tools to extract data from websites.
Skills And Qualifications
- Expert in Python, with knowledge of Python web frameworks (Django, Flask, Fast API)
- Familiarity with some ORM libraries -SQL Alchemy /Tortoise
- Able to integrate multiple data sources and databases into one system.
- Understanding of the threading limitations of Python, and multi-process architecture
- Good understanding of REST APIs.
- Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
- Understanding of accessibility and security compliance
- Knowledge of user authentication and authorization between multiple systems, servers, and environments
- Understanding of fundamental design principles behind a scalable application
- Familiarity with event-driven programming in Python
- Understanding of the differences between multiple delivery platforms, such as mobile vs desktop, and optimizing output to match the specific platform.
- Able to create database schemas that represent and support business processes
- Strong unit test and debugging skills.
- Proficient understanding of code versioning tools ( Git )
- Familiarity with real-time databases ( PostgreSQL, MySQL )
- Must have worked in the field for at least 3+ years.
- Requires a bachelor's degree in computer science, Software Engineering or a related field from a good Institute (Tier-1, Tier -2 Colleges)
- Experience with Python development and web scraping techniques.
CTC: As per Industry Standards.
Work Ex 3 - 6 yrs
Qualifications Graduation (BE / B Tech / BCA/MCA/BSC) with specialisation in Computer Science is Preferred or B.E / B Tech
Notice Period - Immediate or max 20 days or candidates with BUY OUT OPTION
Targetted Sector / Industry - IT, Ecommerce / Product startups, Edu Tech companies
Location : Kurla Mumbai, willing to relocate (if your not from Mumbai)
Should have a high performance Laptop + Internet Connection(Currently to start working remotely)
About the Company uFaber is a well-funded EduTech startup, founded by serial entrepreneurs from IIT Bombay. Technology has changed almost every aspect of our life but the way we learn is still the same. We know that we have chosen a very complex and difficult problem to solve but if problem is not challenging, what's the fun! We are building a team of super smart and high IQ people
Skills Required :
1) Hands on experience in python - django / flask / django restful API frameworks
- Having worked as an individual contributor - developing the project / product end to end from scratch
- Having worked as a backed/fullstack developer
- Having worked on high user base products / apps(min 10 - 20k) users
- Having solved or worked on production issues after the product release
- Having lead a team of 2-4 developers(DESIRED, not mandatory)
2) Good understanding of HTML / CSS | SCSS / Javascript / jQuery, responsive web design using bootstrap
3) Basic understanding of MVC, JavaScript development (Angular is a big bonus)
4) Understanding of code versioning tools, such as Git
5) Management of hosting environment, including database administration (preferebly relational databases MySQL, Postgres, etc)
6) Strong theoritical and practical knowledge of the work - the fundamentals must be clear.
7) Smart, confident and good communication skills.
What you are suppose to do :
1. Plan and execute the long term development roadmap.
2. Code high quality web and mobile apps in django and angular.
Max CTC - 15 Lacs fixed
Work Ex 3 - 6 yrs
Qualifications Graduation (BE / B Tech / BCA/MCA/BSC) with specialisation in Computer Science is Preferred or B.E / B Tech
Notice Period - Immediate or max 20 days or candidates with BUY OUT OPTION
Targetted Sector / Industry - IT, Ecommerce / Product startups, Edu Tech companies
Location : Mumbai, willing to relocate
Role and Responsibilities:
- As a backend developer, your primary focus will be the development of all server-side systems
- A basic understanding of front-end technologies is necessary as well. You will test, secure and deploy your code
- Work experience on Node.js is a must along with a server-side framework like Express.js
- Strong proficiency in JavaScript
- Writing reusable, testable, and efficient code
- Experience and proficiency integrating with REST APIs
- Understanding of scalable computing systems, software architecture, data structures, and algorithms
- Experience in working with databases such as MongoDB, Redis, Elasticsearch, etc.
- AgileScrum development cycle understanding.
Skills Required:
- At least 2 years of experience developing backends using NodeJS should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Good knowledge of MongoDB(Must) & any other MySQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience developing and deploying REST APIs.
- Knowledge and working experience in Cloud environment - AWS or Azure
- Good knowledge of Unit Testing and available Test Frameworks.
- Should be a fast learner and a go-getter without any fear of trying out new things
- Design and develop cloud native enterprise applications
- Define and establish conventions, standards and best practices for the SDLC process and ensure that quality control is of paramount importance at each step of the development life cycle
- Develop reusable frameworks and libraries that can drastically accelerate new application development in the future
- Participate in the requirement analysis and gathering process and also perform sit-withs with business teams to ensure there is full clarity of the problem statement
- Actively engage wih infrastructure team and take ownership of DevOps processes to ensure that build and deployment processes are efficient and optimal.
- Actively engage with project stakeholders to ensure all are in sync with the progress, risks and issues
- Quickly learn and adopt cutting edge technologies to help keep the org ahead of the curve
SKILLS WE ARE LOOKING FOR
Build reusable APIs for our client-facing apps in Node.js
Create and maintain scalable infrastructure leveraging modern cloud platforms Write tests and documentation as you implement features with your team Maintain expertise in current and emerging technologies and tools
THE PERSON WE ARE LOOKING FOR
4+ years’ Experience with NodeJS
BS degree or higher in Computer Science or Engineering Experience documenting and testing RESTful APIs
Experience working with databases in PostgreSQL, MongoDB or Redis
Experience and enthusiasm for working collaboratively with others in an Agile environment














