
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.
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What you'll do:
· Perform complex application programming activities with an emphasis on mobile development: Node.js, TypeScript, JavaScript, RESTful APIs and related backend frameworks
· Assist in the definition of system architecture and detailed solution design that are scalable and extensible
· Collaborate with Product Owners, Designers, and other engineers on different permutations to find the best solution possible
· Own the quality of code and do your own testing. Write unit test and improve test coverage.
· Deliver amazing solutions to production that knock everyone’s socks off
· Mentor junior developers on the team
What we’re looking for:
· Amazing technical instincts. You know how to evaluate and choose the right technology and approach for the job. You have stories you could share about what problem you thought you were solving at first, but through testing and iteration, came to solve a much bigger and better problem that resulted in positive outcomes all-around.
· A love for learning. Technology is continually evolving around us, and you want to keep up to date to ensure we are using the right tech at the right time.
· A love for working in ambiguity—and making sense of it. You can take in a lot of disparate information and find common themes, recommend clear paths forward and iterate along the way. You don’t form an opinion and sell it as if it’s gospel; this is all about being flexible, agile, dependable, and responsive in the face of many moving parts.
· Flexible and willing to accept change in priorities, as necessary
· Demonstrable passion for technology (e.g., personal projects, open-source involvement)
· Enthusiastic embrace of DevOps culture and collaborative software engineering
· Ability and desire to work in a dynamic, fast paced, and agile team environment
· Enthusiasm for cloud computing platforms such as AWS or Azure
· Excellent written and verbal communications skills
We are looking for a Node.js 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.
Location Preferences
- Candidates located in Kerala are preferred.
Skills and Qualifications
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Strong proficiency with JavaScript, React, and Redux
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Knowledge of Node.js and frameworks available for it(particularly Express,Loopback)
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Understanding the nature of asynchronous programming and its quirks and workarounds
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Good understanding of server-side templating languages
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Good understanding of server-side CSS preprocessors
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Basic understanding of front-end technologies, such as HTML5, and CSS3
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User authentication and authorization between multiple systems, servers, and environments
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Integration of multiple data sources and databases into one system
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Understanding Cloud based application deployment.
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Understanding fundamental design principles behind a scalable application
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Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
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Creating database schemas that represent and support business processes
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Implementing automated testing platforms and unit tests
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Proficient understanding of code versioning tools, such as Git
• 3+ Years of experience as a Go Developer
• Experience in ReactJS (most preferred) or AngularJS similar front end frameworks
• Experience with the Python or/and Golang (preferably both), SQL, and design/architectural
patterns
• Experience in Java or dotnet or other opensource technologies is an added advantage
• Hands-on experience on SQL, Query optimization, DB server migration
• Preferably experience in Postgre SQL or MySQL
• Knowledge of NOSQL databases will be an added advantage
• Experience in Cloud platforms like AWS, Azure with knowledge of containerization, Kubernetes is an
added advantage
• Knowledge of one or more programming languages along with HTML5/CSS3,Bootstrap
• Familiarity with architecture styles/APIs (REST, RPC)
• Understanding of Agile methodologies
• Experience with Threading, Multithreading and pipelines
• Experience in creating RESTful API’s With Golang or Python or Java in JSON, XMLs
• Experience with GitHub, Tortoise SVN Version Control
• Strong attention to detail
• Strong knowledge of asynchronous programming with the latest frameworks
• Excellent troubleshooting and communication skills
• Strong knowledge of unit testing frameworks
• Proven knowledge of ORM techniques
• Skill for writing reusable libraries Understanding of fundamental design principles for building a scalable
applicatio
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Roles and Responsibilities |
● Leads more than one projects end-to-end and collaborates across functions. Drives planning, estimation and execution. ● Manages stakeholder expectations and offers scalable, reliable, performant and easy to maintain solutions ● Consistently delivers complex, well backed and bug-free products in time ● Consistently takes well thought technical/design decisions ● Develops expertise in more than one area and shares knowledge with others. able to mentor/train in areas which are new to them. ● Drives people to solve engineering challenges ● Enjoys high respect of Tech and other cross functional teams ● Demonstrates effective communication with project team, management and internal/external clients as necessary. ● Surfaces both technical and non-technical team challenges and helps resolve them ● Champion for SDLC best practices and high quality standards ● Significantly contributes in hiring high performance candidates |
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Experience &
Skills |
● Expert at in RoR, Golang, NodeJS or Python. Good to have exposure to ML. ● Must have experience in cloud computing ● Operates independently with almost no oversight ● Is able to apply domain expertise to think critically and make wise decisions for the team, taking into account tradeoffs and constraints. ● Communicates tech decisions through design docs and tech talks ● Has delivered multiple projects with end-to-end engineering ownership ● Keeps track of new technology/tools and embraces them as necessary ● 12+ years of experience in product driven organization ● A Bachelors or Masters degree in engineering from a reputed institute (preferably IITs, NITs, or other top engineering institutes) |
- In-depth knowledge of Node.js and frameworks available for it.
- Understanding the nature of asynchronous programming and its quirks and workarounds.
- Good understanding of server-side templating languages.
- Good understanding of server-side CSS pre-processors.
- Basic understanding of front-end technologies, such as HTML5, and CSS3.
- Understanding of accessibility and security compliance.
- User authentication and authorization between multiple systems, servers, and environments.
- Integration of multiple data sources and databases into one system.
- Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.
- Proficient understanding of code versioning tools, such as Git.
Benefits :
- Become one of the early members of a fast-growing, exciting startup.
- Have a real impact on the company's growth and evolution.
- Work on a wide variety of projects which are often ground upbuilds.
About Us
We help our customers to Go Digital at 3x Less Cost and 3x Less Time!
appZUI nGage, our App-as-Service platform, accelerates the digital idea to profit journey. Serving more than 250K consumers in US, UK, Switzerland, Australia, India and other geographies with several exciting digital transformations.
Know more:https://bit.ly/az-godigital">http://bit.ly/az-godigital
Role & Responsibilities
We are looking for a Senior developer/Architect to be part of our growing team. In this role you will be handling
- Design and architecture of various core platform components
- Develop and deliver various products for our customers
- Mentor and develop various team members
Skills & Capabilities
- System design for function, scale, security and maintenance
- Data engineering concepts and practice
- Test driven development
- Server-side skills: Nodejs/.Net/Java, Devops, SQL, microservices
- DevOps & SRE skills: Jenkins, Prometheus, Grafana
- System modelling and visualization skills
- Written & oral communication skills
- Front-end skills: (nice to have) Ionic, Angular/React, Javascript, HTML, CSS
What you can expect from us
- Product engineering culture: hypothesis-develop-test-evolve
- Failures are part of learning and growing
- Organization structure and processes to maximize creativity and openness
- Success is about 5 WINS: Customer, Employee, Supplier, Society and Investor















