
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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work with international teams to ensure successful product development and delivery; and
own the overall architecture and systems engineering for your products.
About the Company
F22 Labs is a startup software studio based in Chennai. We power startups worldwide by building high-quality software products. From web apps to mobile platforms, we help entrepreneurs turn their ideas into beautifully crafted solutions. If you're passionate about software development and eager to build real products that solve real problems, you’ll fit right in.
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the core library/language constructs.
• Knowledge of processor, memory, network and storage internals. Familiarity with I/O optimized
algorithms.
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• Familiarity with binary serialization protocols like thrift/protobuf/flatbuffers etc
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• Troubleshooting memory issues, GC tuning, resource leaks etc.
• Strong problem-solving skills, algorithmic skills and data structures.
• Productionizing machine learning pipelines using Spark/Flink/TensorFlow etc
• Familiarity with big data concepts - HDFS, hive, presto, spark, oozie, ambari, airflow, atlas,
ranger, etc. Familiarity with formats like avro, parquet, orc, arrow etc
• Good understanding of branching, build, deployment, continuous integration methodologies
• Experience in leading a team and mentoring engineers
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| Job Description | Roles and Responsibilities Researching, designing, implementing and managing software programs Testing and evaluating new programs Write high quality source code to program complete applications within deadlines Perform unit and integration testing before launch Working closely with other developers, UX designers, business, Testing Team and systems analysts Find bugs and offer timely solutions Integration of user-facing elements developed by front-end developers Build efficient, testable, and reusable PHP modules Solve complex performance problems and architectural challenges Produce detailed specifications Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality Contribute in all phases of the development lifecycle Follow industry best practices Good understanding of RESTful API development. Good knowledge of TDD (Test Driven Development). Good understanding of jQuery, Bootstrap. Knowledge of OOPS preferred. Develop and deploy new features to facilitate related procedures and tools if necessary |
|---|---|
| Ideal Candidate | Strong knowledge of PHP web frameworks like Laravel, CI, etc Knowledge of programming language such as Python/NodeJs will be preferred Understanding the fully synchronous behavior of PHP Understanding of MVC design patterns Understanding of front-end technologies, such as JavaScript, HTML5, and CSS3 Knowledge of object oriented PHP programming Understanding accessibility and security compliance Strong knowledge of the common PHP or web server exploits and their solutions Understanding fundamental design principles behind a scalable application User authentication and authorization between multiple systems, servers, and environments Integration of multiple data sources and databases into one system Familiarity with limitations of PHP as a platform and its workarounds Creating database schemas that represent and support business processes Familiarity with MySQL/Mongo DB databases and their declarative query languages Proficient understanding of code versioning tools, such as Git Cross-browser/platform experience. Ability to adapt to changing priorities and to thrive in a fast-paced work environment. Good analytical and debugging skills. Team-oriented and Self-motivated. |

















