Tech Lead

Role Description

This is a full-time on-site role for a Python Full Stack Developer located in Pune. You will be responsible for end-to-end development of scalable, AI-driven web applications. Day-to-day tasks involve architecting asynchronous backend services using Python and FastAPI, building dynamic user interfaces with ReactJS, and managing cloud infrastructure on AWS. You will collaborate with data scientists and product teams to integrate AI models into enterprise solutions while ensuring high performance and reliability.

Key Responsibilities

1.      Design and develop high-performance asynchronous APIs using Python and FastAPI.

2.      Build responsive, interactive frontends using ReactJS, HTML, CSS, and Tailwind CSS.

3.      Implement distributed task queues and caching mechanisms using Celery and Redis.

4.      Architect and optimize databases, managing both structured (PostgreSQL) and unstructured (MongoDB) data.

5.      Deploy and manage infrastructure on AWS (EC2, Lambda, S3) and maintain CI/CD pipelines for automated deployment.

6.      Integrate AI/ML models into production workflows and optimize system performance for scalability.

7.      Ensure application security, data privacy, and code quality through best practices and regular testing.

Required Skills & Qualifications

1.      3–5 years of experience in full-stack development with a strong focus on Python.

2.      Proficiency in FastAPI and deep understanding of asynchronous programming (asyncio).

3.      Solid experience with ReactJS, HTML, CSS, JavaScript, and Tailwind CSS.

4.      Hands-on experience with Celery and Redis for background task processing.

5.      Working knowledge of AWS services and containerization tools like Docker.

6.      Proficiency in database management using PostgreSQL and MongoDB.

7.      Experience setting up CI/CD pipelines (Jenkins, GitHub Actions, etc.) and version control (Git).

8.      Strong understanding of RESTful API design, microservices, and security best practices.

Job Description – Senior Software Developer

 Key Responsibilities:

• Architect, develop and maintain web applications using the MERN stack.
• Design RESTful APIs (and possibly GraphQL) in Node.js/Express, integrate with front-end in React.
• Build and enhance the front-end UI in React, ensuring performance, responsiveness and maintainability.
• Design MongoDB schemas, indexes and queries for high-traffic/scale scenarios.
• Deploy, operate and optimise cloud infrastructure on AWS: e.g., EC2, Lambda, S3, RDS/DynamoDB, VPCs, IAM, autoscaling.
• Ensure high availability, fault-tolerance, and scalability of services in production.
• Set up and maintain CI/CD pipelines, infrastructure as code, automated testing, monitoring & alerting.
• Troubleshoot and fix performance bottlenecks across the stack (front-end, back-end, database, cloud).
• Collaborate with cross-functional teams (product, design, QA, DevOps) to deliver features end-to-end.
• Mentor junior/mid-level developers, conduct code-reviews, impart best practices.
• Stay up to date with emerging technologies, propose improvements to architecture and processes.

Required Skills & Qualifications:

• 3-5 years of hands-on experience in full-stack web development using the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Strong front-end skills in React: component architecture, hooks, state management, performance optimisation.
• Solid back-end skills in Node.js/Express: API design, middleware, security, robustness.
• Experience with MongoDB (or equivalent NoSQL) including schema design, query optimisation, indexing.
• Proven experience working with AWS cloud services (compute, storage, database, networking, security, monitoring).
• Experience deploying applications at scale: autoscaling, high availability, disaster recovery.
• Familiarity with CI/CD pipelines, infrastructure‐as‐code (CloudFormation, Terraform or similar), containerisation (Docker) is a plus.
• Good understanding of software engineering best practices: code-quality, testing, documentation, version control (Git).
• Excellent communication skills, self-motivation, ability to work remotely and collaborate across time zones.
• Bachelor’s degree in Computer Science or related field (or equivalent experience).
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Job Description:

We are seeking a skilled MERN Stack Developer to join our team. The ideal candidate will have 3 to 7 years of experience in developing web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js). You will be responsible for designing and implementing innovative solutions to meet our company's needs. If you are passionate about technology and thrive in a fast-paced environment, we want to hear from you.

Responsibilities:

Develop and maintain web applications using the MERN stack.

Collaborate with cross-functional teams to define, design, and ship new features.

Write clean, efficient, and maintainable code.

Implement front-end interfaces using React.js.

Design and develop RESTful APIs using Node.js and Express.js.

Integrate third-party APIs as needed.

Optimize application performance for maximum speed and scalability.

Troubleshoot and debug issues that arise during development and in production.

Stay up-to-date with emerging technologies and best practices in web development.

Requirements:

Bachelor's degree in Computer Science, Engineering, or related field.

3 to 7 years of experience in web development.

Proficiency in the MERN stack (MongoDB, Express.js, React.js, Node.js).

Strong understanding of JavaScript, HTML, CSS, and related web technologies.

Experience with front-end frameworks such as Bootstrap or Material-UI.

Knowledge of state management libraries such as Redux or MobX.

Familiarity with version control systems (e.g., Git).

Excellent problem-solving and communication skills.

Ability to work independently and as part of a team.

Experience with Agile development methodologies is a plus.

Knowledge of GraphQL is a plus.

Candidates serving notice period & immediately available can apply, should join within 7 days  Urgent requirement

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What you need to have:

Xfinito is building a portfolio of  new product innovation, product contribution and infrastructure goals while providing individuals and teams the freedom to emphasize specific types of work.

Our work focuses on real –world problems that span the breadth of biomedical engineering, embedded systems, computer science, such as machine and deep learning, data mining, natural language processing, hardware and software performance analysis and much more.

Job Role: FULL STACK DEVELOPER-AWS

Roles And Responsibilities:

• Write well designed, testable, efficient code by using best software development practices.
• Work with agile teams as they perform feature level design, development, testing, performance analysis and document to ensure that software meets business needs
• Contribute to software architecture and design
• Develop the required technical pieces/ end-to-end solutions for multi layered applications on a variety of technology stacks
• Conduct code review to ensure code following the code best practices guidelines
• Support for deployment and maintenance applications
• Ability to lead a module development and take it to completion.

REQUIREMENTS:

• Knowledge of multiple front –end languages and libraries (e.g HTML/CSS, JavaScript, XML, jQuery)
• Familiarity with databases (e.g MySQL, MongoDB), web servers (e.g Apache) and UI/UX design and with common stacks
• Excellent communication, teamwork and organizational skills.
• Knowledge in OOP, design patterns, AWS containers, microservices, serverless implementation

EXPERIENCE:

We as a team are looking for freshers or young professionals with (0-4 years of experience) passion and eagerness to challenge themselves with complex technical projects and provide iterative solutions that provide value each step of the way.

Purpose of the Role

To design and implement the Peak AI System - a new system of intelligence that allows companies to quickly harness the power of AI.

The Opportunity 

Peak is a Decision Intelligence company - we are on a mission to help organisations use AI to make great commercial decisions, all the time. Just as importantly, we are also focused on building an amazing company - one where we truly value our people & culture, and strive to make an amazing and diverse place to work. Our recent Best Companies award & 3 star accreditation for being one of the top companies to work for is a testament to this.

We have ambitious plans over the coming years; to launch and lead a new category of technology (Decision Intelligence), expand our operations and create the best working culture possible. This is a great time to join Peak and the Engineering team, as we start the next stage of our global growth.

The Role

Based in Jaipur or Pune, you will be working in a collaborative team on cutting edge technologies in a supportive and dynamic environment. Ultimately you are responsible for building the CODI and on-boarding new clients - this involves:

• Developing a good understanding of the solutions which Peak delivers, and how these link to Peak’s overall strategy.
• Making suggestions towards shaping the strategy for a feature and engineering design.
• Managing own workload and usually delivering unsupervised. Accountable for their own workstream or the work of a small team.  
• Understanding Engineering priorities and is able to focus on these, helping others to remain focussed too
• Acting as the Lead Engineer on a project. Helps ensure others follow Peak processes, such as release and version control.
• An active member of the team, through useful contributions to projects and in team meetings.
• Supervising others. Deputising for a Lead and/or support them with tasks. Mentoring new joiners/interns and Masters students. Sharing knowledge and learnings with the team.

Required Skills and Experience

We are building a team of world class engineers in Jaipur / Pune, essentially we are looking for bright, talented engineers looking to work at the cutting edge of practical AI.

• Acquired strong proven professional programming experience.
• Strong command of Algorithms, Data structures, Design patterns, and Product Architectural Design.
• Good understanding of DevOps, Cloud technologies, CI/CD, Serverless and Docker, preferable AWS 
• Proven track record and expert in one of the field - DevOps/Frontend/Backend
• Excellent coding and debugging skills in any language with command on any one programming paradigm, preferred Javascript/Python/Go
• Experience with at least one of the Database systems - RDBMS and NoSQL
• Ability to document requirements and specifications.
• A naturally inquisitive and problem-solving mindset.
• Strong experience in using AGILE or SCRUM techniques to build quality software.
• Advantage: experience in React js, AWS, Nodejs, Golang, Apache Spark, ETL tool, data integration system, certification in AWS, worked in a Product company and involved in making it from scratch, Good communication skills, open-source contributions, proven competitive coding pro

As well as doing great work we have created an award-winning, fun and exciting workplace that people love to be, we are looking for people to join us who share our values and are:

• Open - Always up for new ideas and able to take and give feedback in a positive way.
• Driven - sets high goals, doesn’t give up, and make sacrifices to ensure that their job gets done on time and meets/exceeds expectations.
• Curious - Aware of new technologies and uses them to make new improvements in the Engineering ecosystem.
• Smart - Innovative and thinks out of the box, in difficult situations finds a way to succeed no matter what 
• Responsible - takes ownership of tasks given and has a strong work ethic.

About Peak

In an age when becoming AI and data-driven is one of the most important things businesses must do, it can also be one of the most challenging. That’s where Peak comes in; our CODI system sits at the heart of our client’s businesses, enabling the rapid unification, modelling and - most importantly - use of data - helping decision makers make great commercial decisions, powered by AI. All supported by our world-class data science team.

Founded in 2014, Peak has grown rapidly, in line with the world’s fastest growing SaaS companies, winning numerous awards and attracted significant funding to support the company’s ongoing investment in machine learning and AI technologies. All to further our mission to become the world’s leading AI System business.

Headquartered in Manchester, Peak also has offices in London, Edinburgh, Jaipur and Brisbane. Our clients include some of the world's leading retailers, manufacturers and well-known brands alongside highly innovative and tech-savvy businesses. Peak is an Amazon Web Services (AWS) Partner, and holds Machine Learning Competency and Retail Competency status.