11+ Drools Jobs in Mumbai | Drools Job openings in Mumbai

Job Description for Drools developer -

• Hands on experience in design and development in Drools rule engine (minimum 1.5 years) and Core Java
• Exceptional ability to communicate with both technical and non-technical people
• Expertise in object oriented programming
• Experience in Deploying and supporting core and advanced features
• Good exposure to SQL and/or Oracle/ MySQL,
• Candidate should be well verse with Agile processes
• Strong ability to work collaboratively across diverse groups of business and technical stakeholders is required.

Python Developer - AI/MLYour Responsibilities

• Develop, train, and optimize ML models using PyTorch, TensorFlow, and Keras.
• Build end-to-end LLM and RAG pipelines using LangChain and LangGraph.
• Work with LLM APIs (OpenAI, Anthropic Claude, Azure OpenAI) and implement prompt engineering strategies.
• Utilize Hugging Face Transformers for model fine-tuning and deployment.
• Integrate embedding models for semantic search and retrieval systems.
• Work with transformer-based architectures (BERT, GPT, LLaMA, Mistral) for production use cases.
• Implement LLM evaluation frameworks (RAGAS, LangSmith) and performance optimization.
• Design and maintain Python microservices using FastAPI with REST/GraphQL APIs.
• Implement real-time communication with FastAPI WebSockets.
• Implement pgvector for embedding storage and similarity search with efficient indexing strategies.
• Integrate vector databases (pgvector, Pinecone, Weaviate, FAISS, Milvus) for retrieval pipelines.
• Containerize AI services with Docker and deploy on Kubernetes (EKS/GKE/AKS).
• Configure AWS infrastructure (EC2, S3, RDS, SageMaker, Lambda, CloudWatch) for AI/ML workloads.
• Version ML experiments using MLflow, Weights & Biases, or Neptune.
• Deploy models using serving frameworks (TorchServe, BentoML, TensorFlow Serving).
• Implement model monitoring, drift detection, and automated retraining pipelines.
• Build CI/CD pipelines for automated testing and deployment with ≥80% test coverage (pytest).
• Follow security best practices for AI systems (prompt injection prevention, data privacy, API key management).
• Participate in code reviews, tech talks, and AI learning sessions.
• Follow Agile/Scrum methodologies and Git best practices.

Required Qualifications

• Bachelor's or Master's degree in Computer Science, AI/ML, or related field.
• 2–5 years of Python development experience (Python 3.9+) with strong AI/ML background.
• Hands-on experience with LangChain and LangGraph for building LLM-powered workflows and RAG systems.
• Deep learning experience with PyTorch or TensorFlow.
• Experience with Hugging Face Transformers and model fine-tuning.
• Proficiency with LLM APIs (OpenAI, Anthropic, Azure OpenAI) and prompt engineering.
• Strong experience with FastAPI frameworks.
• Proficiency in PostgreSQL with pgvector extension for embedding storage and similarity search.
• Experience with vector databases (pgvector, Pinecone, Weaviate, FAISS, or Milvus).
• Experience with model versioning tools (MLflow, Weights & Biases, or Neptune).
• Hands-on with Docker, Kubernetes basics, and AWS cloud services.
• Skilled in Git workflows, automated testing (pytest), and CI/CD practices.
• Understanding of security principles for AI systems.
• Excellent communication and analytical thinking.

Nice to Have

• Experience with multiple vector databases (Pinecone, Weaviate, FAISS, Milvus).
• Knowledge of advanced LLM fine-tuning (LoRA, QLoRA, PEFT) and RLHF.
• Experience with model serving frameworks and distributed training.
• Familiarity with workflow orchestration tools (Airflow, Prefect, Dagster).
• Knowledge of quantization and model compression techniques.
• Experience with infrastructure as code (Terraform, CloudFormation).
• Familiarity with data versioning tools (DVC) and AutoML.
• Experience with Streamlit or Gradio for ML demos.
• Background in statistics, optimization, or applied mathematics.
• Contributions to AI/ML or LangChain/LangGraph open-source projects.

Job Title: Java Developer

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.

 Required Skills: • Exp. - 1 to 3 years.

Wissen Technology is hiring Java + Scala Developers with 1–3 years of experience. We are looking for candidates with strong hands-on skills in Java and Scala, good analytical abilities, and the capability to work in a dynamic environment.

Key Requirements:

• Experience in Java and Scala
• Strong understanding of core programming concepts
• Good problem-solving and debugging skills
• Must be available for immediate joining
• Should be open to face-to-face interviews in Bangalore or Mumbai

About Wissen Technology:

Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen hassuccessfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider.

What we want to accomplish and why we need you?

Jio Haptik is an AI leader having pioneered AI-powered innovation since 2013. Reliance Jio Digital Services acquired Haptik in April 2019. Haptik currently leads India’s AI market having become the first to process 15 billion+ two-way conversations across 10+ channels and in 135 languages. Haptik is also a Category Leader across platforms including Gartner, G2, Opus Research & more. Recently Haptik won the award for “Tech Startup of the Year” in the AI category at Entrepreneur India Awards 2023, and gold medal for “Best Chat & Conversational Bot” at Martequity Awards 2023. Haptik has a headcount of 200+ employees with offices in Mumbai, Delhi, and Bangalore.

What will you do everyday?

As a backend engineer you will be responsible for building the Haptik platform which is used by people across the globe. You will be responsible for developing, architecting and scaling the systems that support all the functions of the Haptik platform. While you know how to work hard, you also know how to have fun at work and make friends with your colleagues. 

Ok, you're sold, but what are we looking for in the perfect candidate?

Develop and maintain expertise in backend systems and API development, ensuring seamless integrations and scalable solutions, including:

• Strong expertise in backend systems, including design principles and adherence to good coding practices.
• Proven ability to enhance or develop complex tools at scale with a thorough understanding of system architecture.
• Capability to work cross-functionally with all teams, ensuring seamless implementation of APIs and solutioning for various tools.
• Skilled in high-level task estimation, scoping, and breaking down complex projects into actionable tasks.
• Proficiency in modeling and optimizing database architecture for enhanced performance and scalability.
• Experience collaborating with product teams to build innovative Proof of Concepts (POCs).
• Ability to respond to data requests and generate reports to support data-driven decision-making.
• Active participation in code reviews, automated testing, and quality assurance processes.
• Experience working in a scrum-based agile development environment.
• Commitment to staying updated with technology standards, emerging trends, and software development best practices.
• Strong verbal and written communication skills to facilitate collaboration and clarity.

Requirements*:

• A minimum of 5 years of experience in developing scalable products and applications.
• Must Have Bachelor's degree in Computer Engineering or related field.
• Proficiency in Python and expertise in at least one backend framework, with a preference for Django.
• Hands-on experience designing normalized database schemas for large-scale applications using technologies such as MySQL, MongoDB, or Elasticsearch.
• Practical knowledge of in-memory data stores like Redis or Memcached.
• Familiarity with working in agile environments and exposure to tools like Jira is highly desirable.
• Proficiency in using version control systems like Git.
• Strong communication skills and the ability to collaborate effectively in team settings.
• Self-motivated with a strong sense of ownership and commitment to delivering results.
• Additional knowledge of RabbitMQ, AWS/Azure services, Docker, MQTT, Lambda functions, Cron jobs, Kibana, and Logstash is an added advantage.
• Knowledge of web servers like Nginx/Apache is considered a valuable asset.
• 
  

* Requirements is such a strong word. We don’t necessarily expect to find a candidate that has done everything listed, but you should be able to make a credible case that you’ve done most of it and are ready for the challenge of adding some new things to your resume. 

Tell me more about Haptik

• On a roll: Announced major strategic partnership with Jio. 
• Great team: You will be working with great leaders who have been listed in Business World 40 Under 40, Forbes 30 Under 30 and MIT 35 Under 35 Innovators. 
• Great culture: The freedom to think and innovate is something that defines the culture of Haptik. Every person is approachable. While we are working hard, it is also important to take breaks to not get too worked up. 
• Huge market: Disrupting a massive, growing chatbot market. The global market is projected to attain a valuation of US $0.94 bn by the end of 2024 progressing from US $0.11 bn earned in 2015. 
• Great customers: Businesses across industries - Samsung, HDFCLife, Times of India are some that have relied on Haptik's Conversational AI solutions to engage, acquire, service and understand customers. 
• Impact: A fun and exciting start-up culture that empowers its people to make a huge impact. 

Working hard for things that we don't care about is stress, but working hard for something we love is called passion! At Haptik we passionately solve problems in order to be able to move faster and don't shy away from breaking things! 

Responsibilities

Build distributed, highly available, and fault-tolerant applications using Java, Spring, Kafka, and other technologies

Build large-scale and highly available APIs, both internal and external

Build, deploy, release, and support applications in the early stages

Skills

Must have

Overall 10+ years of experience as a Java Developer

Core Java 10+ years

Good hands-on coding skills

Must have experience in investment banking-related projects

Should have working experience in Trading life cycle project

Spring framework 5+ years

Kafka or other messaging

Knowledge of key APIs: JPA, JTA, CDI, etc.

Knowledge of various design and architectural patterns

Understanding of microservices architecture

Containerization solutions (e.g. Docker, Kubernetes, OpenShift)

Building tools (e.g. Maven, Gradle)

Version Control (e.g. Git)

Continuous Integration systems (e.g. TeamCity, Jenkins)

Experience in the finance industry and work with the Fintech community

Job Requirements-

Mandatory:

1. 2 - 3 years of J2EE experience

2. Clear understanding and application knowledge of Object-Oriented concepts

3. Experienced in Core Java, Collection Framework, exception handling, logging frameworks

4. Knowledge of Struts/Spring/Springboot framework or any ORM tools like Hibernate, JPA mandatory

5. Knowledge of SQL

Desirable to have:

1. Code review tools like pmd, sonar, Checkstyle

2. Knowledge of writing unit testing using Junit, Jmock, DBUnit etc.,

3. Knowledge to build scripts using ant, maven

4. Exposure to Agile Model

5. Exposure to BFSI domain

Team Handling/Generic skills

1. Self-driven, ready to learn and adapt depending on customer/organization needs

2. Excellent communication skills

Share resumes at ruchika@ netconnectglobal.com

We are hiring for a Software Engineer Team Lead - Backend, to join our education-focused fintech lending startup, GrayQuest. Our core product is a combination of a lending product, a rewards product and an insurance product to redefine the education fees payment across the country.

• Participate in all stages of the Software Development Lifecycle
• Develop back-end components, services, and APIs. Support integration of user-facing elements, and collaborate closely with the design and front-end development team.
• Write elegant, effective, and scalable code while maintaining the highest level of coding standards.
• Take complete ownership of projects and ensure timely deliveries
• Ability to debug, refine, review, and deploy code
• Work closely with the QA team to test, and document project features.
• Ability to interact with all stakeholders. Understand business requirements, and effectively convert them into technical specifications
• Mentor junior developers and participate in peer Review

Requirements:

• Demonstrable experience as a Python Developer (3+ years)
• Strong knowledge of Python frameworks (Django Rest, Flask)
• Experience working on REST APIs
• Strong knowledge of SQL and JavaScript
• Experience with Amazon Web Services (AWS)
• Working knowledge of React
• Familiarity with Agile development methodology
• Good understanding of task breakup, milestone definition, and work delegation.
• Past experience of working in a fintech/financial services domain or a consumer internet startup will be preferable but not required
• Work experience in early-stage startups (0 ->1) is a big plus
• Bachelors or equivalent degree from premier institutes is a plus
• Most importantly, the biggest skill we look for our prospective candidates is "Learnability" - how quickly can you learn. 

Why is this a great opportunity for the right candidate:

1. Work with a young dynamic core team backed by marquee investors from the financial services space
2. Work on a product/business that has achieved product market fit and take it to scale
3. Equity compensation and competitive market salaries
4. Work environment that prioritizes talent, hustle and dedication
   
   

We will also ensure we give a preference to applicants who directly email us with their background/context and why they think they should be a strong candidate for this position at GrayQuest. Email us at work (at the rate) grayquest (dot) com and cc Sonal (at the rate)grayquest (dot) com

• 5+ years of software development experience including 4+ years of deep, hands on experience in building highly scalable web-based backend applications using Java and Spring ecosystem
• BE/BTech in Computer Science or a related field or equivalent practical experience
• Great problem-solving skills with solid data structures and algorithms knowledge
• Has extensively used the Spring ecosystem – Spring Boot, REST API Development, ORM tools like Hibernate
• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
• Profound insight of Java and JEE internals (Class loading, Multi-Threading, Memory Management, Transaction management etc)
• Experience of coaching and mentoring junior developers with good delegation and time-management skills
• Implemented CI/CD in any of the projects done
• Strong understanding of Agile and Lean software development processes and practices
• Excellent knowledge and hands-on experience of Elastic Search
• Has designed relational databases; conversant with SQL
• Knowledge of Jenkins/ Docker and Devops
• Knowledge of Redis or similar technology
• Worked with some or all of these AWS services: EC2; lambda; SQS/SNS; Elastic Search, Transcoder
• Understanding and experience of building services and applications using principles of service-oriented architecture, preferable using REST or SOAP
• Contributed in the creation of end-to-end automation tests (functional or non-functional)
• Worked with WebSocket, Push notifications etc

• Experience in ELK stack
• Knowledge of Video tools like FFMPEG, Wowza / Node Media Streaming
• Understanding of different video formats, streaming, CDN etc
• Understanding of Machine Learning Models, Pipelines etc

1. Perform full life cycle software development
2. Test and evaluate the technical aspects of every decision
3. Review codes and assess code quality
4. Provide timely solutions to issues
5. Develop a server-side code for high-volume web-based applications
6. Create and develop web user interfaces with Web API as back-end
7. Implement analytics and monitoring routines
8. Knows how to SQL queries for the requirements & Stored Procedure / Entity framework
9. 2-3 Experience with and good knowledge of C, C++, C# and database technology .
10. 2+ years of experience with .NET MVC and web-based development
11. Experience with ASP.NET MVC, jQuery, Web API, Restful Service
12. Experience on Angular will be preferred