
Company Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Work Location - Senior Backend Developer – Java (with Python Exposure)- Mumbai
Experience - 4 to 10 years
Kindly revert over mail if you are interested.
Java Developer – Job Description
We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.
Key Responsibilities
- Design and develop robust backend services and APIs primarily using Java (Spring Boot)
- Contribute to Python-based components where needed for automation, scripting, or lightweight services
- Build, integrate, and optimize RESTful APIs and microservices
- Work with relational and NoSQL databases
- Write unit and integration tests (JUnit, PyTest)
- Collaborate closely with DevOps, QA, and product teams
- Participate in architecture reviews and design discussions
- Help maintain code quality, organization, and automation
Required Skills & Qualifications
- 4 to 10 years of hands-on Java development experience
- Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
- At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
- Familiarity with Python frameworks like Flask or FastAPI is a plus
- Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
- Good understanding of OOP, design patterns, and software engineering best practices
- Familiarity with Docker, Git, and CI/CD pipelines

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Exp: 4 - 7 Years
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Key Responsibilities
- Design, develop, and maintain scalable applications using Java (Spring Boot) and Python (Flask).
- Build RESTful APIs and microservices following best practices.
- Implement event-driven architecture leveraging NATS messaging server.
- Deploy, manage, and optimize applications in Kubernetes and containerized environments.
- Develop and manage CI/CD pipelines, ensuring smooth deployment and delivery.
- Collaborate with cross-functional teams to deliver high-quality solutions.
- Write clean, maintainable, and well-documented code.
- Participate in code reviews and contribute to architectural decisions.
- Troubleshoot, debug, and optimize application performance.
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. - 4 to 7 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 client facing 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. 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 has successfully 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.
About TensorIoT
TensorIoT is an AWS Advanced Consulting Partner. We help companies realize the value and efficiency of the AWS ecosystem. From building PoCs and MVPs to production-ready applications, we are tackling. complex business problems every day and developing solutions to drive customer success.
TensorIoT's founders helped build world-class IoT and AI platforms at AWS and Google and are now creating solutions to simplify the way enterprises incorporate edge devices and their data into their day-to-day operations. Our mission is to help connect devices and make them intelligent. Our founders firmly believe in the transformative potential of smarter devices to enhance our quality of life, and we're just getting started!
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Job description
As a Mid-Level Python Developer, you will:
- Analyze user needs and develop software solutions.
- Work with project managers and product owners to meet specification needs.
- Recommend software upgrades to optimize operational efficiency.
- Deliver scalable and responsive software using TypeScript and Python.
- Collaborate with other developers to design and optimize code.
- Create flowcharts and user guides for new and existing programs.
- Document all programming tasks and procedures.
- Perform routine software maintenance.
- Deploy and maintain CI/CD pipelines.
- Develop and maintain data pipelines. This includes scaling the pipeline to accommodate anticipated volume and complexity.
- Collaborate with external clients and internal team members to meet product deadlines.
We're looking for someone who has:
- Experience with AWS Services(must)
- A bachelor’s degree in computer science, Engineering, or related fields
- 4 - 8 years of experience in software development, computer engineering, or other related fields
- Expert-level experience with Python and Node.JS
- Familiarity and comfort with REST APIs
- A deadline and detail-oriented mindframe
- Strong analytical and critical thinking skills
- Familiarity with DevOps tools and best practices
- Experience developing scalable data processing systems
Bonus points for someone with:
- Experience with IoT, ML, AI, or VR
- Amazon Web Services (AWS) certification(s) (preferred)
- Experience with microcomputers and microcontrollers
- Experience with the following DevOps services: AWS
- CodePipeline, CodeBuild or CodeCommit
- Experience with the following Data Engineering services: AWS Lake Formation, Glue, Redshift, EMR, or QuickSight.
- Developing chatbots and voice assistants on various platforms for diverse business use-cases
- Work on a chatbot framework/architecture using an open-source tool or library
- Implement Natural Language Processing (NLP) for chatbots
- Integration of chatbots with Management Dashboards and CRMs
- Resolve complex technical design issues by analyzing the logs, debugging code, and identifying technical issues/challenges/bugs in the process
- Deploy applications using CI/CD tools
- Designing and building highly scalable AI and ML solutions
- Ability to understand business requirements and translate them into technical requirements
- Open-minded, flexible, and willing to adapt to changing situations
- Ability to work independently as well as on a team and learn from colleagues
- High adaptability in a dynamic start-up environment.
- Experience with bot multi-lingual utilization (preferred)
- Experience with bot human escalation
- Ability to optimize applications for maximum speed and scalability
- Come up with new approaches and ideas to improve the current performance of Chatbots across multiple domains and build a highly personalized user experience.
QUALIFICATIONS : B. Tech/ B.E. /M. Tech or a related technical discipline from reputed universities
SKILLS REQUIRED :
- Minimum 3+ years- of experience in Chatbot Development using the Rasa open-source framework.
- Hands-on experience building and deploying chatbots.
- Experience in Conversational AI platforms for enterprises using ML and Deep Learning.
- Experience with both text to speech and vice versa transformation incorporation.
- Should have a good understanding of various Chatbot frameworks/platforms/libraries.
- Build and evolve/train the NLP platform from natural language text data being gathered from users on a daily basis.
- Code using primarily Python.
- Experience with bots for platforms like Facebook Messenger, Slack, Twitter, WhatsApp, etc.
- Knowledge of digital assistants such as Amazon Alexa, Google Assistant, etc.
- Experience in applying different NLP techniques to problems such as text. classification, text summarization, question & answering, information retrieval, knowledge extraction, and conversational bots design potentially with both traditional & Deep Learning
- Techniques - NLP Skills/Tools: NLP, HMM, MEMM, P/LSA, CRF, LDA, Semantic Hashing, Word2Vec, Seq2Seq, spaCy, Nltk, Gensim, Core NLP, NLU, NLG, etc.
- Should be familiar with these terms: Tokenization, N-Grams, Stemmers, lemmatization, Part of speech tagging, entity resolution, ontology, lexicology, phonetics, intents, entities, and context.
- Knowledge of SQL and NoSQL Databases such as MySQL, MongoDB, Cassandra, Redis, PostgreSQL
- Experience with working on public cloud services such as Digital Ocean, AWS, Azure, or GCP.
- Knowledge of Linux shell commands.
- Integration with Chat/Social software like Facebook Messenger, Twitter, SMS.
- Integration with Enterprise systems like Microsoft Dynamics CRM, Salesforce, Zendesk, Zoho, etc.
MUST HAVE :
- Strong foundation in the python programming language.
- Experience with various chatbot frameworks especially Rasa and Dialogflow.
- Strong understanding of other AI tools and applications like TensorFlow, Spacy, and Google Cloud ML is a BIG plus.
- Experience with RESTful services.
- Good understanding of HTTPS and Enterprise security.
skills required:JAVA,SPRINGBOOT,MICROSERVICES,SPRING,HIBERNATE
- Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
- Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
- Developing ideas for new programs, products, or features by monitoring industry developments and trends.
- Recording data and reporting it to proper parties, such as clients or leadership.
- Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members.
- Taking lead on projects, as needed.
-A premium college gratduate is required.
-Strong experience in Data Structures and Algorithms.
-Should have good understanding of databases and storage fundamentals.
We’re a small team looking for passionate, execution-focused, self-starters to help us build the next generation eCommerce platform and equal the playing field for all. Our success depends on building teams who can challenge each other's assumptions with fresh perspectives. To that end, we don’t just accept differences – we celebrate them. If that sounds exciting to you, let’s talk!
We are expanding our Engineering team to India and building a stellar and diverse team composed of owners. We are looking for a backend engineer with a demonstrated track record of developing and maintaining production services, innovative thinking, and technical excellence. As a backend engineer, you will be responsible for building out the service layer that powers our frontend applications. You should have a solid understanding of software development lifecycle and software design principles. This is a great opportunity if you are looking for a huge impact at a small start-up with immense growth potential.
What you will do?
Create technical plans of projects assigned to you.
Come up with well-structured solutions to ambiguous problems and implement them.
Ship high-quality, well-tested, secure, and maintainable backend code.
Provide technical direction on our various products and upcoming projects.
Champion reliability and quality by using best practices in software engineering and modular design.
Ensure all components are scalable, maintainable, and have in-built metrics instrumentation and monitoring
Deliver an exceptional user experience to our customers. Put the customer first and have quality in mind.
Own the full release cycle from development to deployment.
What you will need?
3+ Years of experience as a software engineer working on backend applications.
Advanced knowledge of Python (preferably, the Django framework) and relational databases.
Experience with agile, test-driven development, continuous integration, and automated testing.
Experience with building, modifying, and extending API endpoints (REST or GraphQL) for data retrieval and persistence.
Experience with the full software development life cycle, including requirements collection, design, implementation, testing, and operational support.
Excellent verbal and written communication, teamwork, decision making and influencing skills.
Experience with scrum or other agile software development methodology.
Hustle. Thrives in an evolving, fast-paced, ambiguous work environment.
Bonus if you have
Experience working in the eCommerce domain.
Experience with AWS technologies like Elastic Beanstalk, Amplify, etc.










