Senior Product Engineer(Fullstack)

Senior Software Engineer

• Minimum 5 years in typescript and Total of minimum 8 Years of experience
• Excellent communication skills. English Language fluency is Mandatory.

We are looking for strong backend senior engineers

• 8+ years experience as Senior Software Engineer
• Have worked in medium- to big-sized companies for at least 3 years ( companies with 50+ developers)
• Strong architecture and planning skills
• Strong AI coding skills (being fluent in developing agents and skills) and using them in their development routines
• Distributed programming knowledge
• Typescript, Postgres & Kubernetes knowledge.

Ways of working

The engineers will be lead/managed by a UK Multinational company engineer manager (initially one currently based in Europe), and we are going to work on hiring one in Asia if we succeed in putting the team together

Engineers will have a direct contract with UK Multinational Company as career employees (entitled to company benefits and career progression) and will be trained in the UK Multinational Company product portfolio and work on several different projects.

We work in an environment where each engineer is presented with a business problem (or user story) and must come up with a detailed plan on how to tackle it (and explain and get approval from the team), which we do during the refinement meetings. In summary, we do not tell the engineers what to do, our expectation from a Senior engineer is that he tells us what to do (he will be trained, of course, in the best practices and technical specs of our environment).

Hiring process

• Hiring manager interview
• System Design interview
• Coding (with AI) interview

About the Role

We are hiring an experienced MERN Stack Developer who can independently build and scale full-stack applications from scratch. The ideal candidate must have strong skills in TypeScript, React.js, Node.js, Redux, and REST APIs, along with a solid understanding of microservices architecture, mobile API integrations, and responsive design.

Experience with LLMs, RAG architecture, Kafka, Redis, webhooks, and database systems like PostgreSQL, MySQL, and MongoDB is essential. You’ll be working on scalable systems, enterprise-grade platforms, and AI-integrated products.

Key Responsibilities

• Develop and maintain full-stack web applications using React.js (with TypeScript) and Node.js (Express/NestJS)
• Build and document robust RESTful APIs and mobile-ready endpoints
• Implement and consume webhooks for third-party integrations and internal event-based workflows
• Ensure responsive design principles across devices and screen sizes
• Integrate with mobile applications via secure and scalable APIs
• Work with databases including PostgreSQL, MySQL, and MongoDB
• Integrate Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) pipelines
• Build and deploy microservices architecture using Kafka, Redis, Docker, etc.
• Manage application state using Redux or Redux Toolkit
• Write test cases using Mocha, Chai, Jest, or similar frameworks
• Participate in system design, architecture discussions, and scalability planning
• Follow Agile practices, perform code reviews, and contribute to CI/CD pipelines
• Collaborate with cross-functional teams including UI/UX, DevOps, QA, and Product Management

Required Skills & Experience

• Minimum 4 years of hands-on experience with the MERN stack
• Strong proficiency in TypeScript, React.js, Node.js, and Redux
• Proven experience in building and consuming REST APIs and webhooks
• Deep knowledge of responsive UI/UX development
• Hands-on experience with mobile-first API design and integrations
• Strong knowledge of PostgreSQL, MySQL, and MongoDB
• Experience with Kafka, Redis, Docker, and microservices
• Exposure to LLM, GPT, RAG, or similar AI models
• Solid understanding of software architecture and ability to build systems from the ground up
• Working knowledge of API security, JWT, OAuth, and rate-limiting
• Familiar with test-driven development and QA practices
• Familiarity with Git, version control, and collaborative workflows good to Have
• Experience with GraphQL and gRPC
• Experience in building SaaS or AI-integrated platforms
• Familiarity with ElasticSearch or RabbitMQ
• Experience with AWS, GCP, or Azure
• Understanding of serverless and event-driven architectures
• 
  

Benefits

• Competitive compensation with performance-based hikes
• Flexible remote or hybrid work options
• Opportunity to work on cutting-edge technologies including AI and scalable SaaS platforms
• Strong leadership and learning-driven environment
• Learning budget for courses, certifications, and conferences

The Role

This role is anything but conventional- It is an opportunity to define and execute our plans and make an impact on the development of millions of children.

As our tech lead, you will work closely with the founders to crystallize and own the product roadmap and then, to bring the product vision to life through simple, elegant design & code that delights users.

You will be the key architect of the product and will help the engineering team build and maintain the product across mobile and web. 

You will own development and delivery of the code- including analysis, optimization and debugging.

Key Skills

3-6 years of experience with backend and frontend web-based application development

2+ years of experience with React / Redux + HTML/CSS

2+ years of experience with Python

Have some experience with databases (SQL, MongoDB)

Have created meaningful APIs and models that are flexible and scalable

About You

You will thrive in this role at KinderPass if you:

• Have a passion for our mission to re-imagine child health and development
• Have the drive to be part of building something new - to learn, to work hard, to be your best self and to adapt to the constant change and evolution of a start-up.
• Enjoy autonomy and flexibility but can work well in a team
• Count Ownership and Reliability as your key strengths
• Can communicate effectively

• 1-9 years of overall working experience in the software environment.
• Minimum 3 years of experience in Agile Software Development.
• NET technologies - .NET 5, .NET Core, C#, Web API, Angular, Typescript, Azure and MS SQL.
• Coding and designing skills.
• Knowledge of database, SQL Queries, procedures & functions is must.
• Good knowledge of cloud concepts and CI/CD.
• Ability to assimilate technical and functional solutions.
• Ability to do code review and deliver quality.
• Knowledge of unit testing with mock.
• Cloud experience.
• Experience using TFS/GIT source control.
• Containerization (Docker) plus orchestration (Kubernetes or OpenShift) are good to have.
• Good written and spoken English.
• Excellent service & industry leading solutions development.

Requirements:

- Knowledge of digital ad tech ecosystem

- Minimum 3 years of experience working in a professional environment on full-stack development

- Proven expertise in creating and developing scalable enterprise or B2C web applications

- Experience in REST API development and MVC/MVVM development methodologies

- Deep understanding of the underlying architecture of web servers, load balancing, and browser nuances. Basically, a solid understanding of fundamentals - including execution models, asynchronous programming, object-oriented concepts, relational concepts, etc.

- Proficiency in one or more of Node.js/MEAN stack, Python, Java or other frameworks and willing to be flexible on stack as per the requirement of the project. Most of our current development is on the MEAN stack - expertise in the stack will be a definite plus

- Proficiency in one or more of databases such as MySQL, MongoDB, Cassandra or other equivalent databases and willing to be flexible as per the requirement of the project. Most of our current development is on MongoDB and MySQL - expertise in these will be a definite plus

- Good understanding of developer tools and devops such as Git, Ansible, cloud platforms such as AWS, Docker, etc.