Senior Backend Developer

Responsible for developing, enhancing, modifying, and maintaining chatbot applications in the Global Markets environment. The role involves designing, coding, testing, debugging, and documenting conversational AI solutions, along with supporting activities aligned to the corporate systems architecture.

You will work closely with business partners to understand requirements, analyze data, and deliver optimal, market-ready conversational AI and automation solutions.

Key Responsibilities

• Design, develop, test, debug, and maintain chatbot and virtual agent applications
• Collaborate with business stakeholders to define and translate requirements into technical solutions
• Analyze large volumes of conversational data to improve chatbot accuracy and performance
• Develop automation workflows for data handling and refinement
• Train and optimize chatbots using historical chat logs and user-generated content
• Ensure solutions align with enterprise architecture and best practices
• Document solutions, workflows, and technical designs clearly

Required Skills

• Hands-on experience in developing virtual agents (chatbots/voicebots) and Natural Language Processing (NLP)
• Experience with one or more AI/NLP platforms such as:
• Dialogflow, Amazon Lex, Alexa, Rasa, LUIS, Kore.AI
• Microsoft Bot Framework, IBM Watson, Wit.ai, Salesforce Einstein, Converse.ai
• Strong programming knowledge in Python, JavaScript, or Node.js
• Experience training chatbots using historical conversations or large-scale text datasets
• Practical knowledge of:
• Formal syntax and semantics
• Corpus analysis
• Dialogue management
• Strong written communication skills
• Strong problem-solving ability and willingness to learn emerging technologies

Nice-to-Have Skills

• Understanding of conversational UI and voice-based processing (Text-to-Speech, Speech-to-Text)
• Experience building voice apps for Amazon Alexa or Google Home
• Experience with Test-Driven Development (TDD) and Agile methodologies
• Ability to design and implement end-to-end pipelines for AI-based conversational applications
• Experience in text mining, hypothesis generation, and historical data analysis
• Strong knowledge of regular expressions for data cleaning and preprocessing
• Understanding of API integrations, SSO, and token-based authentication
• Experience writing unit test cases as per project standards
• Knowledge of HTTP, REST APIs, sockets, and web services
• Ability to perform keyword and topic extraction from chat logs
• Experience training and tuning topic modeling algorithms such as LDA and NMF
• Understanding of classical Machine Learning algorithms and appropriate evaluation metrics
• Experience with NLP frameworks such as NLTK and spaCy

Oister Global (www.oisterglobal.com) is India’s premier Alternative Assets Manager. We combine robust diligence, deep domain expertise, and an extensive network to create high quality private market opportunities for our investors.

We are seeking a Senior Backend Developer who will be pivotal in architecting and developing scalable, reliable backend systems from scratch. You will work closely with product managers, designers, and other engineers to build new products, design backend architectures, and ensure high performance and responsiveness of the systems. This role requires strong backend fundamentals, cloud experience, a deep understanding of databases, and a passion for system design and architecture.

Key Responsibilities:

● Product Development: Architect, design, develop, test, and deploy new backend products and features from scratch.

● System Design: Take ownership of system design and architecture decisions for new modules, ensuring scalability, reliability, and security. ● API Development: Build efficient and reusable APIs and backend services using Node.js.

● Database Management: Design data models, optimize queries, and manage MongoDB clusters efficiently.

● Cloud Management: Deploy, maintain, and optimize services on AWS, ensuring high availability and performance.

● Best Practices: Maintain coding standards, ensure code reviews, and champion best practices in security, testing, and maintainability.

● Collaboration: Work closely with frontend developers, product managers, QA, and other cross-functional teams to define, design, and ship new features.

● Performance Optimization: Monitor system performance and ensure system uptime and responsiveness.

● Mentorship: Provide guidance and mentorship to junior developers as required.

● Documentation: Maintain thorough documentation of systems, processes, and best practices. Must-Have

Qualifications:

● Education: Bachelor’s degree in computer science, Software Engineering, or a related technical field.

● Experience: 4–5+ years of hands-on backend development experience.

● Expertise in: Node.js (Express.js, Nest.js or similar frameworks) MongoDB (including indexing, replication, sharding concepts) AWS Services (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, IAM, etc.) Proficient in: System design principles Microservices architecture Event-driven architecture Strong understanding of: RESTful APIs.Authentication and authorization best practices (OAuth, JWT) Experience with: CI/CD pipelines Docker and containerization principles Hands-on experience in: Building scalable, distributed, and fault-tolerant systems Good knowledge of : Logging, monitoring, and debugging distributed applications

Requirement:

• Min 2-3 Year Experience. Preferably in the E-commerce domain. 
• Proficient with both MySQL and NoSql Databases (Elastic, Mongo)
• Strong hold on PHP and preferably good knowledge of Python
• Experience with JavaScript/JQuery
• Ability to do software design for a enterprise web application
• Working knowledge of a MVC front-end framework
• Proficient in HTTP protocol, REST APIs, JSON
• Ability to do database design and modeling
• Proficient in OOPS concepts and writing code using classes
• Ability to write modular and clean code

Role:

• Software Development of various product line 
• Creation web-services and optimization for existing and new feature rollouts
• Collaborate with Product Managers and design solutions 
• Develop very high sense of ownership, the zeal to build scalable applications
• Build customer facing technology product 
• Individual Contributor

• Strong proficiency with JavaScript and TypeScript
• Knowledge of Node.js and loopback 4 frameworks
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Basic understanding of front-end technologies, such as React
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Understanding fundamental design principles behind a scalable application
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git

Great opportunity to work in Roots Innovations Pvt.ltd., We simplify the RPA (Robotic Process Automation) platform with AI-powered Bots to manage business processes & compliance for all types of industry sectors.

Profile – Backend Developer (Node JS)

Educational Qualification: BE/B.Tech/BCA/BCS/MSC/MCA/MCS/M.Tech(Certification course will be Advantage)

Experience - Fresher

Job Description:

· Implement a robust set of services and APIs to power the back-end application

· Optimize application for maximum speed and scalability

· Implementation of security and data protection

· Follow and understand architecture design and implementation on
development, testing, implementation, and documentation.

· Conduct reviews and conduct team training on the complex features of NodeJS.

· Analyze business/functional requirements and translate them into
concrete tasks

· Manage Product releases

Skill Set Required:

· Knowledge on NodeJs or any NodeJS frameworks

· Good knowledge of Relational and NoSQL databases (MongoDB)

· Exposure to Cloud Environments like AWS, MS Azure or Google Cloud

· Knowledge of an interest in Agile Methodologies, such as Extreme Programming (XP) and Scrum

· Knowledge of software best practices, like Test-Driven Development (TDD) and Continuous Integration (CI)

We are looking for a Staff Engineer who is an expert in Javascript (Node.js). We are looking for engineers who work like owners as you will be tasked with leading the development of one of our 5 major components of the Hatica platform. You will work with experienced engineers and on a modern cloud-native stack built using Javascript (React and Node) and Golang with an in-house real-time data analytics engine on Postgres and Elasticsearch among others.

Experience - 3 - 7 years
Responsibilities

• Build and maintain our backend microservices powering the core of our software platform
• Help your fellow DevOps and junior engineers working on our cloud infrastructure and other components of our product to ensure high code quality and robust architecture.
• Work with your team members to maintain high uptime and reliability of our core backend and APIs

Requirements and Qualifications

• BE/BTech in Computer Science or Engineering
• Minimum of 4 years of experience with backend development
• 3 years of experience with Node.js
• Familiarity with newer specifications of EcmaScript
• Understanding of GraphQL
• Ability to write and maintain high quality code
• Understanding of web coding patterns
• Solid understanding of microservices architecture
• Understanding of AWS and cloud-native technologies is highly preferred

Benefits

• Work with the best and brightest on a global cutting-edge SaaS product
• Performance oriented culture built on fairness and inclusivity
• Competitive Compensation
• Flexible work hours
• Fully remote team, work from anywhere

Job Type: Full-time

Demonstrated experience in Development, unit test application modules based on specified design using PHP, AngularJS, NodeJS, HMTL5, CSS, J2EE/DB2 technologies using Agile Methods