Sr. Web Developer ( React.js+ Nodejs )

About The Role

We are seeking a Full Stack Cloud Engineer with strong hands-on experience in Python (FastAPI), React.js, and AWS Serverless architecture to lead and contribute to the design and development of scalable, modern web applications. The ideal candidate will bring both technical depth and leadership skills, mentoring a small team of developers while remaining actively involved in coding, architectural decisions, and deployment.

You will play a key role in building and optimizing cloud-native, serverless applications using AWS services, integrating front-end and back-end components, and ensuring reliability, scalability, and performance.

Responsibilities

Technical Leadership

• Lead and mentor a small team of engineers, ensuring adherence to coding standards and best practices.
• Drive architectural and design decisions aligned with scalability, performance, and maintainability.
• Conduct code reviews, guide junior developers, and foster a collaborative engineering culture.

Backend Development

• Design, build, and maintain RESTful APIs using FastAPI or Flask.
• Develop and deploy serverless microservices on AWS Lambda using AWS SAM.
• Work with relational databases (PostgreSQL/MySQL) and optimize SQL queries.
• Manage asynchronous task queues with Celery and Redis/SQS.

Frontend Development

• Build and maintain responsive, scalable front-end applications using React.js.
• Implement reusable components using Redux, Hooks, and TypeScript.
• Integrate APIs and optimize front-end performance, accessibility, and security.

AWS Cloud & DevOps

• Architect and deploy applications using AWS SAM, Lambda, Glue, Cognito, AppSync, and Amplify.
• Good-to-have) Experience designing and consuming GraphQL APIs via AWS AppSync.
• Implement CI/CD pipelines and manage deployments via Amplify, CodePipeline, or equivalent.
• Ensure proper authentication, authorization, and identity management with Cognito.
• Use Gitlabs/Devops, Docker and AWS ECS/EKS for containerized deployments where required.

Preferred Skills

• Experience with GraphQL (AppSync) and data integrations.
• Exposure to container orchestration (ECS/EKS).
• AWS Certification (e.g., AWS Developer or Architect Associate) is a plus.

Soft Skills

• Strong communication and leadership abilities.
• Ability to mentor and motivate team members.
• Problem-solving mindset with attention to detail and scalability.
• Passion for continuous learning and improvement.

About Oneture Technologies

Founded in 2016, Oneture is a cloud-first, full-service digital solutions company, helping clients harness the power of Digital Technologies and Data to drive transformations and turning ideas into business realities.

Our team is full of curious, full-stack, innovative thought leaders who are dedicated to providing outstanding customer experiences and building authentic relationships. We are compelled by our core values to drive transformational results from Ideas to Reality for clients across all company sizes, geographies, and industries. The Oneture team delivers full lifecycle solutions - from ideation,

project inception, planning through deployment to ongoing support and maintenance.

Our core competencies and technical expertise includes Cloud powered: Product Engineering, Big Data and AI ML. Our deep commitment to value creation for our clients and partners and “Startups-like agility with Enterprises-like maturity” philosophy has helped us establish long-term relationships with our clients and enabled us to build and manage mission-critical platforms for

them.

• Hands-on expertise in managing technical teams and work closely with business stakeholders
• Should be familiar with card testing and POS ecosystem.
• Experience with designing APIs and building platform integrations in Commerce, POS, FinTech and Payments
• Payment’s domain experience.
• Extensive experience on Base24 & SWITCH part for payment format.
• Exposure on ISO8583 Messaging system.
• API understanding and creation.
• Working knowledge on cryptographic algorithms (RSA, EC, AES, SHA variants), TLS/SSL protocols. C Symetric and A symetrics, K.M.S.
• Digital Payments technical knowledge - QR/ POS/ UPI/ BQR
• Understanding of CI/CD pipelines, Kubernetes, containerization, Docker
• Must have strong technical skills in Android APK and iOS development Concept and Web services.
• Supportability, monitoring, ops in general.
• Accurate cost models to deploy and operate
• Extensive experience in TLOG’s, data integration with downstream applications, and impact of POS changes on different financial, legal, compliance, loss prevention, etc. applications.
• Extensive experience with payment systems 7861 (EMV, payment middleware, encryption, tokenization, settlement, offline scenarios,).
• Extensive experience with different types of payment methods including credit, debit, gift cards (Both closed loop and open loop), PLCC, PayPal, AliPay, checks, etc. as well as different payment form factors like Tap N Go, contactless, swipe, EMV, Mobile, etc.
• Extensive experience with payment devices (pin pads, printers, registers, scanners).
• Experience in Node.js / Java / Python, building REST APIs, with experience/exposure to front end stack like JavaScript & React / Angular. 
• Experience with Storage systems - RDBMS, NoSQL (Cassandra/MongoDB), Redis/Memcache/Aerospike.
• Experience in messaging tools like Kafka/AWS Kinesis etc...
• Design expertise for performance, scalability, fault tolerance and high availability

• Experience with POS systems and Payments domain.
• Demonstrated experience for systems architecture, design, and integration for POS systems
• Java and/or Node.js. Experience building micro services (REST APIs) using Node.js
• Experience with one or more RDBMS databases like MySql, PostGreSQL
• Experience with one or more NoSQL databses like MongoDB, Cassandra, DynamoDB, Aerospike, Elastic Search, Redis, neo4j etc.,
• Caching technologies like: Redis, Elasticache,
• Cloud Providers like: AWS/ Google Cloud / Azure
• CI / CD : Jenkins, Docker, Kubernete
  

• 2 years of strong development background building complex applications.
• Proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Experience building applications using NodeJS and frameworks such as Express.
• Thorough understanding of React.js and NodeJS including its core principles.
• Ability to understand business requirements and translate them into technical requirements.
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial).
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Strong experience with MongoDB, Postgres
• Developing new user-facing features using React.js
• Thorough understanding of React.js & popular Workflows (such as Flux or Redux)
• Building reusable components and front-end libraries for future use

Role

We are looking for a  Senior Software Engineer - Python, React to join our engineering team and help us develop and maintain various software products.

You should be comfortable around front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.

Ultimately, you’ll build highly responsive web applications that align with our business needs.

Responsibilities

• Write effective, scalable code
• Develop front-end and back-end components to improve responsiveness and overall performance
• Integrate user-facing elements into applications
• Test and debug programs
• Improve functionality of existing systems
• Implement security and data protection solutions
• Assess and prioritize feature requests
• Coordinate with internal teams to understand user requirements and provide technical solutions

Qualifications

• BSc/BE/BTech in Computer Science, Engineering or a related field
• Must have 4+ years of work experience as a Python/Django (Back-end) and React (Front-end) developer
• Expertise in Django Framework. Other frameworks like Flask Pyramid knowledge are good to have
• Strong experience with Linux-based infrastructures, Linux/Unix administration, and AWS.
• Proficient in Terraform which allows migration to Kubernetes 
• Experience with DevOps toolchains such as Docker, Travis CI, Jenkins, Git.,
• Understanding of fundamental design principles behind a scalable application
• Able to create database schemas that represent and support business processes
• Knowledge of object-relational mapping (ORM)
• Able to implement automated testing platforms and unit tests
• Proficient understanding of code versioning tools (Git) 
• React experience is good to have
• Team spirit
• Good problem-solving skills

Required a full stack Senior SDE with focus on Backend microservices/ modular monolith with 3-4+ years of experience on the following:

• Bachelor’s or Master’s degree in Computer Science or equivalent industry technical skills
• Mandatory In-depth knowledge and strong experience in Python programming language.
• Expertise and significant work experience in Python with Fastapi and Async frameworks. 
• Prior experience building Microservice and/or modular monolith.
• Should be an expert Object Oriented Programming and Design Patterns.
• Has knowledge and experience with SQLAlchemy/ORM, Celery, Flower, etc.
• Has knowledge and experience with Kafka / RabbitMQ, Redis.
• Experience in Postgres/ Cockroachdb.
• Experience in MongoDB/DynamoDB and/or Cassandra are added advantages.
• Strong experience in either AWS services (e.g, EC2, ECS, Lambda, StepFunction, S3, SQS, Cognito). and/or equivalent Azure services preferred.
• Experience working with Docker required.
• Experience in socket.io added advantage
• Experience with CI/CD e.g. git actions preferred. 
• Experience in version control tools Git etc.

This is one of the early positions for scaling up the Technology team. So culture-fit is really important.

• The role will require serious commitment, and someone with a similar mindset with the team would be a good fit. It's going to be a tremendous growth opportunity. There will be challenging tasks. A lot of these tasks would involve working closely with our AI & Data Science Team.
• We are looking for someone who has considerable expertise and experience on a low latency highly scaled backend / fullstack engineering stack. The role is ideal for someone who's willing to take such challenges.
• Coding Expectation – 70-80% of time.
• Has worked with enterprise solution company / client or, worked with growth/scaled startup earlier.
• Skills to work effectively in a distributed and remote team environment.

Job description

Copperchips is hiring full-stack spring boot developers with hands-on experience in the underneath

• Spring Boot
• AngularJs 
• Spring Data jpa
• Hibernate
• SQL
• Postgres
• Rest API

Additionally, knowledge on the underneath technologies will be a plus

• Experience in Angular.Js is a big plus
• Cloud Environments preferably AWS. GCP / Azure would also work
• Knowledge of GIT/Bitbucket, and other version management tools is a must
• Queueing frameworks, Webhooks and Event Driven Development
• CI/CD implementation using Jenkins / bamboo
• You will be responsible for
• Designing/architecting application features/modules
• Develop, build, test, and deploy software product features by adopting industry best practices
• Preparing technical documentation. Translating BRDs into FRD's. Decomposing requirements into logical work breakdown structure
• Pro-actively propose solutions and strategies to business challenges

Skills for Success

• A quick learner with good written and oral communication skills
• Should be able to take new initiatives and ownership of tasks
• Must have the ability to work independently with little to no supervision
• Must be flexible to work in a multi-shift environment
• Candidate should be willing to travel onsite for short/long-term assignments

The ideal candidate is a self-motivated, multi-tasker, and demonstrated team-player. You will be a lead developer responsible for the development of new software products and enhancements to existing products. You should excel in working with large-scale applications and frameworks and have outstanding communication and leadership skills. 

Responsibilities

• Writing clean, high-quality, high-performance, maintainable code
• Develop and support software including applications, database integration, interfaces, and new functionality enhancements
• Coordinate cross-functionally to insure project meets business objectives and compliance standards
• Support test and deployment of new products and features
• Participate in code reviews
• Technical Lead experience exploring other open source frameworks and technologies and integrating with project

Qualifications

• 5+ years of development experience at least two or more of the following languages (Python, Ruby, javascript and Java)
• Expertise in object oriented design and design patterns
• Experience releasing highly scalable enterprise products full lifecycle
• Experience mentoring and training others on complex technical issues
• Experience with implementing algorithms to solve complex real world problems
• Solid coding practices including good design documentation, unit testing, peer code reviews
• Excellent verbal and written communication
• A proven ability to learn and adapt to new, complex development environments with deep dive analytical skills
• Strong object-oriented programming skills, knowledge of design patterns, and an uncanny ability to design intuitive module and class-level interfaces
• Experience in algorithm design and problem solving
• Experience leading small teams of engineers
• Experience with technologies like MongoDB, DynamoDB is highly desirable
• Experience developing full stack web applications using Perl, Java, Python or PHP
• Experience in any of the top JavaScript MVC frameworks, like Backbone, Angular, Ember, Spine or Knockout
• Passion for creating efficient, scalable, highly usable web interfaces
• Candidates from  Product Start-up companies would be highly preferred.

• Participate in requirements
• Maintain and improve web Design mobile-based web features.
• Work closely with Scrum team to ensure quality throughout the entire software development
• Maintain high standards of software quality by establishing, adopting and following good practices and processes
• Monitor systems to ensure they meet both customer needs and business goals
• Solve problems by crafting software solutions using maintainable, testable and modular code
• Collaborate within a team by participating in code reviews, pairing sessions, architecture discussions and planning

• Write robust, testable code, along with unit, functional, acceptance and/or user tests to validate every change
• Challenge your fellow team members to grow and enhance our team with new, diverse talent
• Mentor interns and other software engineers to grow their technical skills
• Work closely with Scrum team to ensure quality throughout the entire software development cycle.
• Identify and propose dev toolsets to enhance and extend the dev team’s capabilities & efficiency
• Manage business context and pressures around quality and time to market
• Stay up-to-date on emerging technologies

Job description

Roles and responsibilities:

Platon is looking for a minimum 2 - 3 years experienced and motivated Full Stack professional with SaaS to be an integral part of Web Apps team. The team is an essential part of the Technology team at Platon and works on solving technical challenges related to processing, visualization and presentation of continually scaling data in an easily accessible manner on the Platon platform.

You should have hands on experience with PHP, Laravel, Java, COREJAVA, J2EE, javascript, Bootstrap, HTML, CSS, MYSQL/Oracle, MongoDB, Redis, AWS, Vuejs, Source code management (GitHub/Bitbucket),PWA etc. This role is ideal for you if you have a background in Full Stack development and are looking for the next level of career growth in a fast paced, learning based and merit driven work environment. mind Good to have experience in Native App development

What we are looking for:

• Strong coding and design skills
• Good command over Data Structures & Algorithms
• The ability to produce bug-free and production grade code
• Skills we consider PHP, Laravel, Java, COREJAVA, J2EE, javascript, Bootstrap, HTML, CSS, MYSQL/Oracle, MongoDB, Redis, AWS, Vuejs, Source code management (GitHub/Bitbucket),PWA.

• To Develop Enterprise Applications using PHP, Laravel, Javascript, MySQL, PWA.
• Help in Design of Web Application
• Interaction with Clients
• Quality & Timely Delivery
• Helping Team Members on Technical issue

• Extensive experience in development using PHP, Laravel, Vue.js, MySQL and Javascript
• Eye for Detail & Quality Delivery
• Ability to work in a team environment
• Must meet deadline
• Knowledge of CRM/ERP
• Mind Good to have experience in Android application development, COREJAVA, J2EE, React.js, js, PWA.