Wissen Technology

We are looking for an exceptional Python Backend Developer to join our engineering team. You will be responsible for managing the interchange of data between the server and the users, developing server-side logic, and ensuring high performance and responsiveness to requests from the front end. The ideal candidate must have a rock-solid foundation in core computer science concepts, specifically Object-Oriented Programming (OOP) and Data Structures and Algorithms (DSA), to design and implement highly scalable and optimised backend systems.

Responsibilities:

• Design, build, and maintain efficient, reusable, and reliable Python code.
• Develop robust, highly scalable, and low-latency backend architectures and APIs.
• Apply strong OOPS principles to build modular and maintainable software systems.
• Utilise advanced Data Structures and Algorithms (DSA) to solve complex computational problems and optimise application performance.
• Integrate user-facing elements developed by front-end developers with server-side logic.
• Implement security and data protection measures.
• Identify bottlenecks, troubleshoot bugs, and devise elegant solutions to mitigate these issues.
• Collaborate cross-functionally with product managers, front-end developers, and QA engineers to deliver high-quality features.

Requirements:

• Core Python: Strong proficiency in Python programming with a deep understanding of its quirks, ecosystem, and best practices.
• OOPs Expertise: Excellent command over Object-Oriented Programming concepts (Inheritance, Polymorphism, Encapsulation, Abstraction) and design patterns.
• DSA Proficiency: Strong problem-solving skills with a deep understanding of Data Structures (Arrays, Trees, Graphs, Hash Tables, etc. ) and Algorithms (Sorting, Searching, Dynamic Programming, etc. ).
• Frameworks: Hands-on experience with popular Python web frameworks such as Django, FastAPI, or Flask.
• Database Management: Solid understanding of relational databases (e. g., PostgreSQL, MySQL) and ORM (Object-Relational Mapper) libraries.
• API Development: Experience in designing and developing RESTful APIs.
• Version Control: Proficient understanding of code versioning tools, such as Git.
• Clean Code: A strong commitment to writing clean, readable, and properly documented code.

Good to Have (Optional):

• Experience with NoSQL databases (e. g., MongoDB, Redis).
• Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization tools (Docker, Kubernetes).
• Knowledge of asynchronous programming in Python (asyncio).

JOB DESCRIPTION

Experience: 6-10 years

Wissen Technology is now hiring for a Senior 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. - 6-10 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.

We are seeking a Java Engineer (6- 10 year's experience) in Bangalore/Gurgaon to drive modernization of enterprise financial platforms. You will lead cloud migration (AWS), integrate AI, and develop high-performance backend systems focusing on cleared derivatives, risk management, and margin optimization.

•Experience: 6 to 10 Years

•Location: Bangalore / Gurgaon

•Mode of Work: Full-Time

•Key Responsibilities

Backend Development: Build high-performance, low-latency services using Java 8/11/17+ and Spring Boot.

•Cloud Migration: Execute on premises to AWS cloud migration initiatives.

•Derivatives Focus: Implement complex business logic for cleared derivatives, covering trade matching and regulatory reporting.

•AI Integration: Implement AI pipelines for automated financial data processing.

•Architecture: Utilize AWS services (Lambda, ECS, S3, RDS, Kafka).

Required Technical Skills

•Java & Spring: Advanced Core Java, Spring Boot, Spring Security, JPA/Hibernate.

•AWS: Strong experience in AWS cloud infrastructure and security.

•Databases: Expert-level SQL (Oracle/PostgreSQL).

•DevOps: Experience with Docker, Kubernetes, and migration patterns.

Must-Have Qualifications

•Domain expertise in Cleared Derivatives (Futures & Options, Clearing Houses).

•Experience designing scalable microservices.

Nice-to-Have Skills

•Experience with Generative AI or Agent builders.

•Knowledge of Infrastructure as Code (Terraform).

Soft Skills

•Strong analytical, problem-solving, and communication skills.

📝 Job Description: Full Stack Java Developer (4.5+ Years)

📌 Position Overview

We are seeking a highly motivated Full Stack Java Developer with 4+ years of professional experience to join our dynamic team. The ideal candidate will be responsible for designing, developing, and maintaining scalable web applications, working across both backend and frontend technologies.

🔑 Key Responsibilities

• Develop and maintain Java-based backend services using Spring Boot, Hibernate/JPA, and RESTful APIs.
• Build responsive and interactive frontend applications using React.
• Experience with AI tools 
• Collaborate with cross-functional teams to define, design, and ship new features.
• Optimize application performance and ensure scalability.
• Write clean, maintainable, and testable code with unit testing frameworks (JUnit, Mockito).
• Participate in code reviews, troubleshooting, and debugging across the stack.
• Work with CI/CD pipelines, Docker/Kubernetes, and cloud platforms (AWS/Azure/GCP).

🎯 Required Skills & Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field.
• 4+ years of experience in Java development and full stack application design.
• Strong knowledge of Spring Boot, Hibernate/JPA, REST APIs.
• Hands-on experience with frontend frameworks (React/Angular/Vue.js).
• Proficiency in SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB).
• Familiarity with DevOps tools (Git, Jenkins, Docker, Kubernetes).
• Strong problem-solving skills and ability to work independently.

🌟 Preferred Qualifications

• Experience with microservices architecture.
• Exposure to cloud-native applications (AWS/Azure/GCP).
• Knowledge of Agile/Scrum methodologies.
• Good communication and teamwork skills.

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

While you may already know about Wissen and the company history, here is a quick rundown for you.

About Wissen Technology:

·        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. We help clients build world class products.

·        Our workforce has 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 has grown its revenues by 400% in these five years without any external funding or investments.

·        Globally present with offices 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.

·        Wissen Technology has been certified as a Great Place to Work®.

·        Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.

·        Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.

·        We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, Goldman Sachs, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.

Job Title: Software Developer

Experience: 4–6 Years

Location: Pune / 3 days' work from Office.

Employment Type: Full-Time

Job Summary

We are looking for a highly skilled Java Developer with strong experience in Java application development, Kubernetes, and CI/CD pipelines. The ideal candidate should have hands-on experience in building scalable backend applications, working with microservices architecture, and deploying applications in containerized cloud environments.

Key Responsibilities

• Design, develop, test, and maintain scalable Java-based applications.
• Develop RESTful APIs and microservices using Java frameworks.
• Build and deploy containerized applications using Docker and Kubernetes.
• Design, implement, and maintain CI/CD pipelines for automated build, testing, and deployment.
• Collaborate with DevOps, QA, and product teams to ensure smooth software delivery.
• Monitor application performance and troubleshoot production issues.
• Write clean, maintainable, and reusable code following coding standards and best practices.
• Participate in code reviews, technical discussions, and architecture decisions.
• Optimize application performance, security, and scalability.

Required Skills

• Strong experience in Java development
• Hands-on experience with Spring / Spring Boot
• Good understanding of Microservices Architecture
• Strong knowledge of Kubernetes (K8s) and container orchestration
• Experience with CI/CD tools such as Jenkins, GitHub Actions, GitLab CI, or Bamboo
• Experience with Docker / Containerization
• Strong knowledge of REST APIs
• Good understanding of SQL / Databases
• Experience with Git version control
• Strong debugging and problem-solving skills

Good to Have

• Cloud platform exposure: AWS / Azure / GCP
• Monitoring tools: Grafana, Prometheus, Datadog
• Messaging systems: Kafka / RabbitMQ
• Scripting knowledge: Shell / Python
• Exposure to Agile / Scrum environment

Preferred Background

• Experience working in BFSI, FinTech, Credit Risk, Lending, or Enterprise Product Development environments.
• Ability to work independently and mentor junior developers.

Work Model: Hybrid (3–4 days from Pune office)

Key Responsibilities

• Design, develop, test, and deploy robust Java-based applications.
• Build and maintain scalable RESTful APIs and Microservices.
• Collaborate with cross-functional teams including Product, QA, DevOps, and Business stakeholders.
• Optimize application performance and troubleshoot production issues.
• Participate in code reviews and ensure adherence to coding standards and best practices.
• Develop secure and high-performance applications.
• Contribute to CI/CD pipeline implementation and automation.

Required Skills

• 5+ years of experience in Java development.
• Strong knowledge of Java 8/11/17 and Object-Oriented Programming concepts.
• Experience with Spring Boot, Spring MVC, Spring Data JPA, Hibernate.
• Hands-on experience in Microservices Architecture.
• Strong expertise in designing and consuming REST APIs.
• Experience with SQL databases (Oracle, MySQL, PostgreSQL).
• Knowledge of Git, Maven/Gradle, and version control practices.
• Experience with Kafka/RabbitMQ or other messaging platforms.
• Understanding of design patterns and software development best practices.
• Familiarity with Agile/Scrum methodologies.

8–12 years of experience in Java application development.

Strong hands-on experience with Java, Spring, Spring Boot, and Hibernate/JPA.

Proficiency in SQL and relational databases (Oracle, SQL Server, PostgreSQL, or MySQL).

Experience in SQL query optimization, indexing, execution plan analysis, and database performance tuning.

Knowledge of REST APIs, Microservices, Maven/Gradle, Git, and JUnit.

Familiarity with CI/CD tools and Agile methodologies.

About Wissen Technology:

·         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. We help clients build world class products.

·         Our workforce consists of 550+ 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 has grown its revenues by 400% in these five years without any external funding or investments.

·         Globally present with offices 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.

·         Wissen Technology has been certified as a Great Place to Work®.

·         Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.

·         Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.

·         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.

We have served clients across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include the likes of Morgan Stanley, MSCI, State Street Corporation, Flipkart, Swiggy, Trafigura, GE to name a few.

We are looking for Java Developers with 5+ years of experience for Bangalore and Mumbai locations.

Key Requirements:

• 5+ years of experience in Java development
• Strong hands-on experience in Core Java
• Strong understanding of Data Structures, Algorithms, and Problem Solving
• Good experience in Multithreading / Concurrency
• Exposure to or awareness of AI / LLM concepts
• Candidate should be an Immediate Joiner
• Must be available for a Face-to-Face interview
• Candidate should be open to attending the interview in Mumbai or Bangalore

Locations:

• Mumbai
• Bangalore

Lead Java Platform Engineer

Build the high-performance platform services behind our core financial applications.

EXPERIENCE

5+ years (core Java)

CORE TECH

Java · REST APIs ·

SQL/NoSQL

DOMAIN

Financial Services

About the role

We’re seeking a highly experienced and passionate Senior Java Platform Engineer to join our

team. You’ll play a crucial role in designing, developing, and maintaining the robust, scalable

platform services that underpin our core financial applications.

This role demands a deep understanding of core Java principles, a proven track record of

building high-performance APIs, and extensive experience in the financial services industry.

What you’ll do

Design & development

– Design, develop, and maintain high-performance, scalable, and reliable platform services in

Java.

– Build and consume RESTful APIs and other web services.

– Write clean, well-documented, testable code, and contribute to code reviews and quality.

Platform engineering

– Contribute to the architecture and design of our platform services.

– Optimize platform performance and scalability and troubleshoot complex technical issues.

– Ensure the security and reliability of the platform.

Data management

– Work across SQL and NoSQL databases.

– Design efficient data access patterns and apply sound data modelling principles.

Financial services expertise

– Apply deep knowledge of financial industry practices, regulations, data, and systems.

– Work with sensitive financial data structures, with the care that requires.

Automation & workflow– Use Python for scripting and automation tasks.

– Apply (or build) exposure to Apache Airflow or similar tools for data pipelines and

scheduling.

Collaboration & communication

– Collaborate with cross-functional teams — product managers, QA engineers, and

developers.

– Communicate clearly with both technical and non-technical stakeholders.

– Mentor junior engineers.

What you’ll bring

– Bachelor’s or Master’s in Computer Science or a related field.

– 8+ years of experience in core Java development.

– Extensive experience building and maintaining platform services.

– Strong grasp of object-oriented programming principles and design patterns.

– Proven experience designing and developing RESTful APIs.

– Deep knowledge of concurrency, multithreading, and performance optimization.

– Hands-on experience with SQL and NoSQL databases.

– Significant experience within the financial services industry.

– Exposure to Python for scripting and automation.

– Exposure to Apache Airflow or similar workflow management tools.

– Excellent problem-solving, analytical, communication, and collaboration skills.

– Experience with Agile development methodologies.

Nice to have

– Cloud platforms (AWS, Azure, or GCP).

– Containerization and orchestration (Docker, Kubernetes).

– Message queues (Kafka, RabbitMQ).

– Knowledge of financial regulations and compliance requirements.

About Wissen Technology

Wissen Technology is a specialized consulting firm that helps organizations in Banking &

Finance, Telecom, and Healthcare build world-class products. Since 2015, we’ve grown to

1,000+ engineers across the US, UK, India, Australia, Mexico, and Canada and we are a

certified Great Place to Work ®.

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Work Location – Whitefield, Bangalore

While you may already know about Wissen and the company history, here is a quick rundown for you.

About Wissen Technology:

·    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. We help clients build world class products.

·    Our workforce has 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 has grown its revenues by 400% in these five years without any external funding or investments.

·    Globally present with offices 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.

·    Wissen Technology has been certified as a Great Place to Work®.

·    Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.

·    Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.

·    We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, Goldman Sachs, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.

Job Title: Azure Fabric Data Engineer / AI Engineer

Experience: 4–8 Years

Location: Pune(Hybrid)

Job Summary

We are seeking Azure Fabric Data Engineers with experience in data engineering, Power BI, and AI to build modern data platforms and AI-driven solutions on Microsoft Fabric.

Key Responsibilities

• Develop ETL/ELT pipelines using Microsoft Fabric.
• Integrate data from multiple enterprise systems into Fabric.
• Build and optimize Lakehouse and Data Warehouse solutions.
• Develop Power BI dashboards and reports.
• Build AI-powered applications, AI Agents, and chatbots using Azure AI Services and Azure OpenAI.
• Collaborate with business and technical teams to deliver scalable analytics solutions.

Required Skills

• Microsoft Fabric
• Data Engineering and ETL/ELT
• SQL, Python, PySpark
• Power BI
• Azure AI Services / Azure OpenAI
• Data Modeling
• Git and Azure DevOps

Preferred: Experience with Financial Services/Capital Markets, Generative AI, RAG, or LLM-based applications.