Backend Developer

·                    Design, develop, and implement AI/ML models and algorithms.

·                    Focus on building Proof of Concept (POC) applications to demonstrate the feasibility and value of AI solutions.

·                    Write clean, efficient, and well-documented code.

·                    Collaborate with data engineers to ensure data quality and availability for model training and evaluation.

·                    Work closely with senior team members to understand project requirements and contribute to technical solutions.

·                    Troubleshoot and debug AI/ML models and applications.

·                    Stay up-to-date with the latest advancements in AI/ML.

·                    Utilize machine learning frameworks (e.g., TensorFlow, PyTorch, Scikit-learn) to develop and deploy models.

·                    Develop and deploy AI solutions on Google Cloud Platform (GCP).

·                    Implement data preprocessing and feature engineering techniques using libraries like Pandas and NumPy.

·                    Utilize Vertex AI for model training, deployment, and management.

·                    Integrate and leverage Google Gemini for specific AI functionalities.

Qualifications:

·                    Bachelor’s degree in computer science, Artificial Intelligence, or a related field.

·                    3+ years of experience in developing and implementing AI/ML models.

·                    Strong programming skills in Python.

·                    Experience with machine learning frameworks such as TensorFlow, PyTorch, or Scikit-learn.

·                    Good understanding of machine learning concepts and techniques.

·                    Ability to work independently and as part of a team.

·                    Strong problem-solving skills.

·                    Good communication skills.

·                    Experience with Google Cloud Platform (GCP) is preferred.

·                    Familiarity with Vertex AI is a plus.

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.

Java back end developer

Chennai  

3+yrs

3 to 5 years Java,

Sprint Boot, Hibernate,

REST API Design Patterns SQL,

Oracle,

Table design

• • At least 3 to 5 years of experience in .Net.
  • The candidate should be a system thinker.
  • Strong knowledge of at least one of the .NET languages (e.g. C#, Visual Basic .NET) and HTML5/CSS3.
  • Enjoy Event-Driven Design Patterns and Event Sourcing.
  • Familiar with Document Store Databases (like Cosmos DB / Mongo DB).
  • Knowledge in Modular Architecture and Microservices.
  • Comfortable leading large technical projects.
  • Knowledge of any cloud services AWS, Azure, Google Cloud.
  • Good understanding of ASP.NET framework, SQL Server and design/architectural patterns (e.g. Model-View-Controller (MVC)).
  • Experience with architecture styles/APIs (REST, RPC).
  • Understanding of Agile methodologies.
  • Strive for continuous improvement and build continuous integration, continuous development, and constant deployment pipeline (CI/CD Pipeline).

• Bachelor’s Degree in Computer Science or Information Technology
  
  

• Excellent writing skills
• Proficient in Web use, Outlook and Microsoft Office
• Travel as needed

Design, develop, and maintain software application following established standards,
procedures, and specifications.

• Strong problem-solving and troubleshooting skills.
• Proactively seeks solutions to improve processes and applications.
• Interfacing with support and other teams for testing, delivery and product dependencies.
• Candidate must have strong and proven experience in C# and .Net Core.

Desired Candidate Profile

We are looking for developers with 2+ years of experience who love challenges and have experience building web applications at scale. Work as a contributing member of a software development team using modern software development techniques to produce best software for Web Applications.

Any Graduate

Key Responsibilities & Requirements

You should primarily be a backend developer or full stack developer, very good at code reviews and code optimization. Our products depend on processing large amounts of data and having fast response times is absolutely essential.

You will have the opportunity to

• Take responsibility of building systems for scale
• Manage our backend systems and database optimizations
• Assist in key decisions and design architecture that drives development across products
• Define processes and help with efficient functioning of the team
• Work with cross-functional teams to ensure the products are scalable, maintainable and secure

What we expect from you:

• We work on Ruby on Rails but you can have 2+ years of experience as backend developer in any language
• Have a solid grasp of OOP, databases and automated testing methodologies.
• Know how to manage sprint and ensure tasks are completed within the timeline
• Design and implementation of low-latency, high-availability, and performant applications
• Strong understanding of SQL databases
• Proficient knowledge of various authentication methods like JWT, OAuth etc..
• Perform peer code reviews and Code audit - Analyze existing code and remediate performance issues within existing applications

Having seen over 10x growth in 2021 alone, we are expanding our scope of products to cater to the fast growing creator economy and help creators monetize in ways beyond influencer marketing. We are also looking at tremendous growth in the next few years, standing at the verge of building something huge!

Come join our team of developers if a fast learning environment in a high growth industry excites you.

About Winkl

Please check out our product before applying to this position -
* Website - https://winkl.co
* Team - https://winkl.co/about
* Android App - https://play.google.com/store/apps/details?id=co.winkl.app&;amp;hl=en
* iOS App - https://www.winkl.co/app

Winkl is a technology company that is changing how influencer marketing is done. From a manual process earlier to an automated and data-driven process with Winkl. More on this here.

Leveraging data & technology helps Winkl scale influencer marketing to a level that wasn't possible earlier. This has helped Winkl power influencer campaigns for top brands in India like Flipkart, Amazon etc.

Culture & Expectations

* At Winkl, no one tells you what to do. We don't micromanage. We don't spoon feed. As long as you're willing to learn new things, are proactive, initiate activities on your own, make mistakes and learn from them, take responsibility, stick to your word of getting things done, we think you'd be a great fit at Winkl.
* On a day to day basis, you'll get to be an important part of a high growth startup as it scales.
* You'll receive all possible support from your team at Winkl to help you succeed. 
* Being highly accountable is a non-negotiable requirement