Backend Developer

We are seeking a highly skilled and motivated Senior Software Engineer (AI/ML) to design, develop, and deploy cutting-edge AI solutions across our organisation. The ideal candidate will possess strong expertise in machine learning, natural language processing (NLP), and generative AI, along with solid experience in software engineering principles. This role requires a hands-on technologist who can collaborate with cross-functional teams to build scalable, high-performance AI systems that deliver measurable business impact.

The core responsibilities for the job include the following:

Technical Leadership:

• Lead end-to-end development and deployment of AI/ML models and applications.
• Design scalable, maintainable AI architectures and data pipelines.
• Provide technical mentorship to junior engineers and peers across data science and software engineering teams.

Solution Design and Development:

• Collaborate with product managers, architects, and business stakeholders to identify and define AI-driven solutions.
• Develop, evaluate, and optimise model training strategies, evaluation metrics, and deployment methods.
• Stay current with emerging AI/ML technologies, frameworks, and tools (e. g., PyTorch, TensorFlow, Hugging Face, and LangChain drive their adoption where relevant.

Project Management:

• Translate business requirements into actionable technical deliverables with defined timelines and milestones.
• Ensure code quality, scalability, and performance in production environments.
• Identify potential risks, implement mitigation strategies, and ensure timely delivery of AI solutions.

Collaboration and Communication:

• Work closely with DevOps, MLOps, and Data Engineering teams for seamless model integration and deployment.
• Effectively communicate complex AI concepts to both technical and non-technical stakeholders.

Requirements:

• Bachelor's or Master's degree in Computer Science, Artificial Intelligence, Data Science, or a related field.
• 3+ years of overall software engineering experience, with a minimum of 3 years in AI/ML development.

Mandatory Technical Skills:

• Proficiency in Python and Generative AI frameworks.
• Strong understanding of Retrieval-Augmented Generation (RAG), PyTorch, Large Language Models (LLMs), and AWS.
• Hands-on experience with AI/ML tools and libraries such as TensorFlow, Hugging Face, and LangChain.

Proven experience in:

• Deep Learning Frameworks: TensorFlow, PyTorch.
• NLP Models: Transformers, BERT, LLMs (GPT, LLaMA, Claude, etc. ).
• ML Lifecycle Tools: MLflow, Kubeflow, Vertex AI, Azure ML.
• Model Deployment: REST APIs, Docker, Kubernetes, Serverless Architectures.
• Cloud Platforms: AWS / Azure.
• Vector Databases: FAISS, Qdrant, Pinecone, and semantic search implementations.
• Strong programming expertise in Python, with familiarity in SQL, Scala, or Java as required.

Preferred Qualifications:

• Experience with Generative AI, LLM fine-tuning, or RAG-based systems.
• Understanding of Responsible AI practices, including bias detection, model explainability, and governance.
• Contributions to open-source AI/ML projects or publications in recognised AI research forums.

Java JD

Exp: -2- 4 Years

Location: - Manyata Tech Park, Bangalore, Karnataka, India

Immediate Joiners-15 Days

Job Responsibilities

• Strong experience with Spring and Spring Boot, Spring MVC, Spring Data, Spring Security
• • Exposure working in microservices and containerization(Docker/Kubernetes)
• • Experience with Web Services (JSON, REST, JAX-RS, Spring based REST services)
• • Strong with Java and J2EE/Java EE (including servlets, JSP, JSF, JDBC)
• • Strong understanding of Java Multithreading
• • Experience working with DB like Mongo, Casandra etc.
• • Experience with at least one of the development tools like Git, Gradle, Maven, Sonar, Jenkins, Artifactory etc
• • Experience with web application servers like Tomcat, Jetty, JBoss etc
• • Experience with TDD, code testability standards, JUnit/Mockito
• • Experience with DevOps practices and CICD model of development
• • Good understanding of OOP, design patterns and industry best practices
• • Agile project experience along with working on Agile tools like JIRA
• • Strong written and verbal communication skills
• Good to have Skills:
• • Strong interpersonal skills and time management skills
• • Strong analytical and troubleshooting skills

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. - 5 to 14 years.

• Experience in Core Java and Spring Boot.

• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.

 • Should have the ability to analyze, design, develop and test complex, low-latency clientfacing applications.

• Good development experience with RDBMS.

 • Good knowledge of multi-threading and high-performance server-side development.

• Basic working knowledge of Unix/Linux.

• Excellent problem solving and coding skills.

• Strong interpersonal, communication and analytical skills.

• Should have the ability to express their design ideas and thoughts.

• Integration of client-side elements developed by a frontend developers with server side logic
• Building reusable code and libraries for future use
• Test and debug programs
• Coordinate with other team members to understand user requirements and provide technical solutions

Skills and Competencies:

• Proficient knowledge of Python with a backend server framework like Flask or Django
• Understanding accessibility and security compliance from the Business statement & implement them accordingly
• Building API endpoints - Project structuring, build reusable components, etc
• Integration of multiple data sources and databases into the application code
• Creating database schemas that represent and support the business use case
• Experience with building the infrastructure for serving the front-end app and assets would be a value-add
• Experience with scripting for task automation and data analysis
• Basic understanding of front-end technologies and platforms, such as JavaScript, HTML, and CSS would be a value-add
• Professional, precise communication skills

Qualification and Experience:

• B.E. / B. Tech. / MCA / PGDCA / M.Sc. (CS) /M.E. / M. Tech
• At least 2 years of experience in Backend Development
• Proficient knowledge of Python or any other back-end programming language
• Demonstrated experience with Object Oriented design and development
• Experience in working with MongoDB or other NoSQL databases would be a value-add
• Knowledge of Microservices, Dockers, Kubernetes
• Exposure to Google Cloud Platform and/or Amazon Web Services

DUKAAN - Create Your Online Store in 30 Seconds

Dukaan is an app that allows offline businesses to sell their products and services online. On our app, the users can make beautiful product catalogues (catalogs) right from a smartphone and share with their customers easily on different social media apps such as Whatsapp Business, Whatsapp, Facebook, Instagram etc. Praised by users all over India, this app has saved declining businesses by helping them transfer their shop online. The journey has just begun and we are on a mission to make India truly Digital.

Dukaan is currently powering over 5M ecommerce stores built by indian small businesses and growing at a crazy rate.  

We are looking for a Backend Engineer to join our team who will be part of our new innovations team.

Requirements:

1. Strong knowledge of Django, Django Rest Framework and their design principles.
2. Strong knowledge of Django ORM, should be able to leverage it to write complex and optimized queries (E.x Q queries, Case, When, Select related, prefetch related, Subqueries, Annotations, Aggregations, Filtering, etc.) .
3. Should be able to override DRF serializers, filters and viewsets completely according to needs.
4. Should have good experience in Class Based Views to write the backend API’s.
5. Sound knowledge of database design patterns and modelling them to Django models.
6. Sound knowledge of how to write test cases for the APIs.
7. Should be able to write optimized pythonic code adhering to python PEP standards.
8. Strong knowledge of python packaging and how to architect a code base that should be easily scalable and not get cluttered.
9. Strong knowledge of REST API design patterns.
10. Ability to write RAW sql queries and further database level coding will be a plus.
11. Good Understanding of python’s asyncio, threading and multiprocessing library, their benefits and limitations along with their appropriate use cases.
12. Hands on knowledge of celery and its corresponding message broker such as RabbitMQ, Redis, etc.
13. Experience with building a CDC(Change Data Capture) pipeline will be a plus.
14. Experience with Apache Kafka, Kafka connect and Debezium will be a plus.
15. Experience with open source will be a plus.
16. Good knowledge of Algorithms and data structures.

Responsibilities:

1. Understand the ins and out of existing codebase and have a good grasp over it.
2. Write clean, stable and scalable code.
3. Write unit test cases for the APIs.
4. Do whitebox and blackbox testing for your own code and as well as others if required.
5. Understand and implement fast prototype solutions for the business needs.

We are seeking a lead Python Developer to lead the backend efforts and, in the process design, develop, and deploy its customer centric applications.

The person will have the opportunity to design and build an early stage, rapidly evolving platform from scratch and carry out these primary responsibilities -

Optimize components for maximum performance across multiple devices and browsers

Write performant REST APIs for both internal and external consumption

Build micro services and their deployment process

Work with problems of scale, leveraging technologies that are distributed in nature.

Perform code reviews

Required qualifications and must have skills

Excellent analytical and problem-solving skills

Proven-deep-expertise with Python programming (4+ years of hands-on experience in Python and backend development)

Building performant and scalable applications from scratch

Experience in working with frameworks like Django, Flask, etc.

Experience with building APIs and services using REST, SOAP, etc.

Experience with any RDBMS and strong SQL knowledge

Comfortable with Unix / Linux command line

Object-oriented concepts & design patterns

Sytem and database desinging skills

Nice to have Skills

Knowledge of other programming languages beyond Python

Familiarity with managing infrastructure on AWS/GCloud

Experience with working with/building data analytics pipleline

Familiarity with NoSQL databases

Good understanding of Docker and container platforms like Mesos and Kubernetes

Security-first architecture approach

Application benchmarking and optimization

Interpersonal Attributes

You are driven by the impact your work creates

You can answer the why behind any technological choice you make

You can work independently as well as part of a team

Looking for a Java Technical Architect/ Java architect with experience between 10 to 14 years.

Candidate must have experience  in Java technologies along with SpringBoot and Microservices.
Must have experience in Cloud Technology - AWS.
Must have experience in Angular 4 or above version.

Note: 1. Candidate must be ready to work in night shift.
          2. Looking only for Tamilnadu based candidates.

• Have architected /designed at least 2-3 systems/products of enterprise scale from scratch.
• Have banking and Financial service background and preferably worked in Mobile/Digital platform design and development. Payments /OLTP preferred.
• Should have experience of 20+ years with J2ee, REST, Microservice, API, Messaging, Encryption, security, NLP, ML background.
• Have 7+yrs of experience in Architecture field, designing and end to end not from consulting Architecture.
• Responsible for design, architecture, and delivery of a feature or component/product with the highest quality with high-level directions from architects
• Driving innovations in the platform constantly & remaining ahead of the curve
• Development and testing of features/functions delivered via applications and services.
• Prototype ideas quickly using cutting edge technologies.
• Collaborating with peers and Architects both within their team and across the organization to deliver end-to-end products & features
• Working with product managers using agile methodologies to deliver high quality solutions on time
• Provide functional, design, and code reviews in related areas of expertise with-in team and cross-team.
• Working with operations teams to ensure your applications and services are highly available and reliable
• Mentoring junior engineers in the team both in the technical as well as on the product side
• Define and devise processes, tools and methodologies to achieve excellence in software development, testing and deployment, and in the management of the Centre.
• Good experience in working with any of the programming languages like PHP, Python, Django, Golang, Java, C++
• Experience developing applications that use high volume of data along with experience building applications on top of RESTful APIs.
• Solid knowledge of JAVA, J2EE, data stream, processing, big data etc.
• Comfortable with writing unit tests using JUnit
• Worked with Git and are comfortable with Merge/Rebase concepts.
• Worked with tools such as Eclipse, WebStorm, Ant, Maven, Jenkins, Sonar, JSLint, Grunt and App Servers such as Tomcat, Jboss.
• Solid knowledge of algorithms, design patterns, and componentization approaches.
• Experience and knowledge of open source software, frameworks and broader cutting-edge technologies.
• Experience in software design patterns, problem solving and troubleshooting skills.
• Ability to determine impact of architectural solutions and recommendations.
• Must have experience in justification of technology solutions to business leaders.
• Experience in refactoring existing codebase and in understanding existing implementations to decide to refactor or rewrite.
• Know how to identify Performance bottlenecks and use good coding patterns to avoid them in the first place.
• Have strong attention to detail.
• Ability to operate effectively both independently as well and within a team using Agile methodology.
• Proven problem-solving and interpersonal communication skills.
• Knowledge of payment domain will be an added advantage

Qualifications

• BE/BTech/ME/MTech in EE/CS or an equivalent qualification.
• 20+yrs of Experience.
• Minimum 12+years of hands on Java programming experience.