At least 3 years' experience as a Node.js developer.
Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
Mandatory experience in MongoDB and MySql.
Knowledge of front-end technologies such as HTML5 and CSS3.
Superb interpersonal, communication, and collaboration skills.
Exceptional analytical and problem-solving aptitude.

About Matellio India Private Limited
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About the Role
We are looking for a highly skilled and experienced Senior React Native Developer with backend experience to join our team and lead the development of our cross-platform mobile application and its supporting backend services. You'll play a pivotal role in building, launching, and scaling a high-performance app that runs seamlessly on both iOS and Android — all from a single codebase — while also architecting and maintaining robust backend infrastructure in Node.js.
If you're passionate about mobile technologies, experienced in backend systems, and excited about building high-quality products from the ground up, we’d love to hear from you Responsibilities
- Lead the end-to-end development of a cross-platform mobile application using React Native.
- Build and maintain backend services and APIs using Node.js, ensuring scalability and performance.
- Collaborate with product managers, designers, and other engineers to deliver intuitive and seamless user experiences.
- Design and implement secure, reusable, and modular components (both frontend and backend).
- Optimize app and API performance across a wide range of devices and platforms.
- Ensure app and backend compliance with modern security, performance, and design standards.
- Set up and manage CI/CD pipelines for both frontend and backend (e.g., Fastlane, EAS, GitHub Actions).
- Integrate third-party APIs, services, analytics, push notifications, and more.
- Manage app store submissions and backend deployments.
- Mentor junior developers and contribute to establishing mobile and backend development best practices.
Requirements
Must-Have:
- 5+ years of experience in full-stack or mobile application development.
- 3+ years of hands-on experience with React Native.
- 2+ years of experience working with Node.js for backend development.
- Strong understanding of JavaScript (ES6+), TypeScript, and modern React architecture.
- Experience designing and integrating RESTful APIs, managing authentication, and handling network issues.
- Deep knowledge of mobile app development lifecycle for both iOS and Android.
- Familiarity with native build tools (Xcode, Android Studio).
- Solid grasp of mobile UI/UX principles and performance optimization techniques.
- Proficiency with Git, GitHub/GitLab, and agile workflows.
- Experience with features like push notifications, deep linking, in-app purchases, and analytics SDKs.
Preferred:
- Experience with Expo or EAS for managed workflows.
- Knowledge of CI/CD tools (Fastlane, Bitrise, GitHub Actions, etc.).
- Exposure to native modules (Objective-C/Swift and Java/Kotlin).
- Familiarity with automated testing frameworks (Jest, Detox, etc.).
- Experience publishing apps to the App Store and Google Play.
- Prior experience in startups or high-growth product environments.
- Working knowledge of databases (e.g., MongoDB, PostgreSQL) and cloud infrastructure (e.g., AWS, Firebase).
What We Offer
- Opportunity to lead and build a product end-to-end — frontend and backend.
- Work with a dynamic, high-performing team in a fast-paced, collaborative environment.
- Remote-first culture with flexible working hours.
- Competitive salary and equity options (if applicable).
- Dedicated learning and development budget to help you grow.
Job Title: Lead – Application Engineering
Remote | Chennai | Hyderabad | Bangalore
Tiger Analytics is a global AI and analytics consulting firm. With data and technology at the core of our solutions, our 2800+ tribe is solving problems that eventually impact the lives of millions globally. Our culture is modelled around expertise and respect with a team-first mindset. Headquartered in Silicon Valley, you’ll find our delivery centres across the globe and offices in multiple cities across India, the US, the UK, Canada, and Singapore, including a substantial remote global workforce.
We’re Great Place to Work-Certified™. Working at Tiger Analytics, you’ll be at the heart of an AI revolution. You’ll work with teams that push the boundaries of what is possible and build solutions that energize and inspire.
Curious about the role? What your typical day would look like?
We are looking for Tech Leads working with our Application Engineering team, designing, and developing a variety of applications. More specifically, you will:
- Determine the functional, non-functional requirements and scope working with the business analysts and engineering managers
- Design and develop multi-tier, cloud-native, high performance, and scalable solutions
- Apply software engineering principles, design patterns and best practices to build solutions that are testable, secure, and robust
- Lead cross functional agile teams across the software development lifecycle
- Evaluate design alternatives using proof of concepts and collaborate with architects to choose optimal solutions
- Performing design and code reviews
- Collaborate with project/program managers to estimate, plan, and mitigate technical risks at module/project level
- Mentor and groom developers to deliver high quality solutions
What do we expect?
- Years of Experience: 5+ years
- Relevant hands-on experience with one of more of the following:
- Programming Languages – Python with Django / Flask / Java / C#.net
- Web server technologies - Node.js / Nginx
- Database technologies - MySQL / Oracle / PostgreSQL / MongoDB
- Testing frameworks – Junit/ Selenium
- Cloud environments - AWS / Azure / GCP (Good to have)
- Good understanding of API design and development
You are important to us, let’s stay connected!
Every individual comes with a different set of skills and qualities so even if you don’t tick all the boxes for the role today, we urge you to apply as there might be a suitable/unique role for you tomorrow.
We are an equal opportunity employer. Our diverse and inclusive culture and values guide us to listen, trust, respect, and encourage people to grow the way they desire.
• Develop and maintain all server-side network components
• Ensure optimal performance of the central database and responsiveness to front-end requests
• Collaborate with Frontend Developers on the integration of elements
• Working knowledge of socket programming
• Understand Facebook, Google, Twitter APIs
• Design customer-facing UI and backend services for various business processes
• Develop high-performance applications by writing testable, reusable, and efficient code
• Implement effective security protocols, data protection measures, and storage solutions
• Run diagnostic tests, repair defects, and provide technical support
• Document node.js processes, including database schemas, as well as prepare reports
• Recommend and implement improvements to processes and technologies
• Keep informed of advancements in the field of node.js development
• Extracting data from various social media and web via scraping or official API
Profile Requisites
• Bachelor's Degree in Computer Science, Information Science, or similar
• At least 4 years' experience as a node.js developer
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks
• Knowledge of frontend technologies such as HTML5 and CSS3
• Should have extensive experience with MongoDB
• Experience with a caching layer like redis
• Familiarity with Facebook, Google & Twitter APIs
• Familiarity with social media login and extracting data from authentication
• Experience with AWS services like SNS, SQS, EC2 instances, and Lambda
• Experience with Jenkins and Docker
• Familiarity with scraping from web and social media
• Familiarity with creation and working with proxies
• Proficient in unit testing framework like Mocha
• Experience in integrating 3rd party APIs
• Experience with elastic search would be great
• Superb interpersonal, communication, and collaboration skills
• Exceptional analytical and problem-solving aptitude
• Should be able to think of optimized solutions and scalable solution

Job Description
- Design & implement backend APIs
- Mentor junior developers technically.
- Actively work to reduce tech debt in the backend
- Work towards more stability & scalability of the backend
- Tech stack - Java, AWS, Aurora etc.
Eligibility
- 4-8 years of product company experience
- OOP implementation experience. Programming language does not matter. We use Java internally but have hired folks from non Java background.
- Hands on experience in SQL, Dynamo DB, Postgres etc preferred.
- Prior experience building REST APIs
- Advanced understanding of AWS stack
- Prior knowledge of solving problems at scale.




the core library/language constructs.
• Knowledge of processor, memory, network and storage internals. Familiarity with I/O optimized
algorithms.
• Deep understanding of distributed systems including fault modeling, concurrency, isolation,
consensus etc.
• Internals of a RDBMS like MySQL
• Conversant with the internals of systems like Kafka, Cassandra/Scylla, Redis, RocksDB etc
• Working knowledge of hosting and network infrastructure (K8s, Envoy, etc)
• Familiarity with binary serialization protocols like thrift/protobuf/flatbuffers etc
• Familiar with gRPC, HTTP/2, QUIC, etc.
• 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
• Attitude to get Stuff Done!
• Ability to make decisions independently.
Desired Background:
• Bachelor’s or Master’s degree in Engineering from premier institutes preferred
• 8+ years of experience in software design, development & architecture
Are you passionate about using technology to make people's lives better? Are you interested in becoming a part of one of the hottest trends in the world of start-ups today? Are you excited about joining the online ultra-fast grocery delivery service business pioneer and driving the trend forward? Then this may be the right opportunity for you.
Role and Responsibilities
- Helping lead the software development lifecycle: technical design, implementation, testing, deployment, and support.
- Working with cross-functional teams effectively to enable business growth.
- Proactively identifying engineering bottlenecks and initiating proposals to improve them.
- Writing high-quality, well-tested code in alignment with industry-wide best practices.
- Applying a product mindset to back-end systems.
-
- About five years of experience delivering product-quality code in an agile set-up
- Experience with Node.js (Hapi, Restify, Express, Mongoose, Socket.IO, Mocha)
- Experience with Elasticsearch
- Experience building and deploying Docker containers
- Strong general Linux experience
- Extensive experience with REST APIs
- Experience with microservice architecture
- Experience with MongoDB
- Expert knowledge of Redis and caching strategies
- Strong knowledge of unit/integration testing, including the art of mocking and writing testable code
- Passionate about technology and making an impact.
- A perpetual learner, who stretches their boundaries and enjoys new ideas.
- A doer who takes initiative and works well in a team.
Blok is a technology-first online ultra-fast grocery delivery service business, and we are on our way to revolutionize how millions of people across countries consume groceries. We believe in a world where getting everything you need, when you need it, sustainably, is the new normal. And it takes less than 10 minutes.
We believe we are positioned to lead this revolution. Why? Our founding and early team have held senior positions at Deliveroo, Uber, Glovo, Mercadona, or Unilever. We have done this before, and we believe we can do it again. But this time, even better.
Embark on the journey and help us launch the revolution in one of the highest growth industries of the year. Help us shape the new normal.









