
We are seeking a skilled Java Developer with hands-on experience in Java and Spark to build scalable data processing solutions. You'll contribute to high-performance data pipelines and analytics platforms in a dynamic Agile environment.
Key Responsibilities
- Design and develop Java applications integrated with Apache Spark for ETL processes, data transformations, and analytics.
- Build and optimize Spark jobs (Spark SQL, DataFrames, Streaming) for large-scale data processing.
- Collaborate with data engineers and analysts to implement robust data workflows.
- Write clean, maintainable Java code following best practices (Spring Boot, Microservices preferred).
- Perform code reviews, unit testing, and contribute to CI/CD pipelines.
- Troubleshoot and optimize Spark performance for production workloads.
- Document technical solutions and mentor junior developers.
Required Skills & Qualifications
- 4-7 years of hands-on Java development experience.
- Strong expertise in Apache Spark (Spark Core, Spark SQL, PySpark basics).
- Proficiency in Java 8/11+ with multithreading and collections frameworks.
- Experience with data processing (ETL, data pipelines, big data).
- Familiarity with build tools (Maven/Gradle) and version control (Git).
- Strong problem-solving skills and Bangalore location availability.
- Excellent communication skills for cross-team collaboration.
Good to Have
- Experience with Snowflake for cloud data warehousing.
- Knowledge of DBT (Data Build Tool) for analytics engineering.
- Python scripting for data manipulation and automation.
- Exposure to AWS/GCP/Azure cloud platforms.
- Familiarity with Kafka, Airflow, or containerization (Docker/Kubernetes).

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
Similar jobs
Job Title: Python Developer - Django (Full Time)
Location: Gurgaon, Onsite
Interview: Virtual Interview
Experience Required: 3+ Years
About the Role
We are looking for a skilled Python Developer with hands-on experience in building scalable backend systems. The ideal candidate should have strong expertise in Python, Django, distributed task queues using Celery, Redis, RabbitMQ, and experience working with event streaming platforms like Kafka.
Key Responsibilities
- Design, develop, and maintain backend services using Python and Django.
- Implement and optimize task queues using Celery with Redis/RabbitMQ as brokers.
- Develop and integrate event-driven systems using Apache Kafka.
- Write clean, reusable, and efficient code following best practices.
- Build RESTful APIs and integrate with external services.
- Ensure performance, scalability, and security of applications.
- Collaborate with frontend developers, DevOps, and product teams to deliver high-quality solutions.
- Troubleshoot and debug issues in production and staging environments.
Required Skills & Experience
- 2+ years of professional experience in Python backend development.
- Strong knowledge of Django Framework.
- Hands-on experience with Celery, Redis, RabbitMQ, and Kafka.
- Good understanding of REST API design principles.
- Experience with relational databases (PostgreSQL/MySQL).
- Familiarity with version control (Git) and Agile development.
- Strong problem-solving skills and ability to work in a fast-paced environment.
About the Role:
We are seeking a skilled Java Developer to join our team. The ideal candidate will have strong experience in core Java development along with exposure to modern frameworks and tools. You will be responsible for designing, developing, and maintaining scalable applications while ensuring performance, security, and code quality.
Key Responsibilities:
- Design, develop, test, and maintain Java-based applications.
- Write clean, efficient, and reusable code following best practices.
- Collaborate with cross-functional teams (Product, QA, DevOps, etc.) to deliver high-quality software.
- Troubleshoot, debug, and optimize application performance.
- Participate in code reviews and contribute to continuous improvement.
- Stay updated with emerging trends, tools, and technologies in the Java ecosystem.
Required Skills & Qualifications:
- Strong proficiency in Core Java (Java 8/11/17).
- Experience with frameworks such as Spring / Spring Boot / Hibernate.
- Good knowledge of REST APIs, Microservices architecture.
- Familiarity with SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
- Understanding of multithreading, collections, and design patterns.
- Experience with version control systems (Git) and build tools (Maven/Gradle).
- Solid problem-solving skills and ability to work in an Agile environment.
Good to Have:
- Exposure to cloud platforms (AWS, Azure, GCP).
- Knowledge of containerization (Docker, Kubernetes).
- Experience with messaging systems (Kafka, RabbitMQ).
- Familiarity with CI/CD pipelines.
Job Title: Senior Software Engineer - Backend
About the firm:
Sustainability lies at the core of Stantech AI. Our vision is to empower organizations to derive actionable insights—effectuating a smarter way of working. We operate on the premise that each client is unique and as such requires their own idiosyncratic solutions. Putting this principle into practice, we deliver tailor-made solutions to digitalize, optimize, and strategize fundamental processes underpinning client organizations. For more information, please refer to our website: www.stantech.ai
Job Description:
As a Senior Software Engineer at Stantech AI, you will play a pivotal role in designing, developing, and maintaining enterprise-grade backend services and APIs that cater to the unique needs of our clients. You will be a key member of our engineering team and will contribute to the success of projects by leveraging your expertise in Python, SQL, and modern DevOps practices.
Key Responsibilities:
- Design, develop, and maintain high-performance backend applications and RESTful APIs using Python FastAPI framework.
- Optimize and maintain relational databases with SQL (data modeling, query optimization, and sharding) to ensure data integrity and scalability.
- Create, configure, and manage CI/CD pipelines using GitLab CI for automated build, test, and deployment workflows.
- Collaborate with cross-functional teams (data scientists, frontend engineers, DevOps) to gather requirements and deliver robust, scalable, and user-friendly solutions.
- Participate in architectural and technical decisions to drive innovation, ensure reliability, and improve system performance.
- Conduct code reviews, enforce best practices, and mentor junior engineers.
- Troubleshoot, diagnose, and resolve production issues in a timely manner.
- Stay up-to-date with industry trends, emerging technologies, and best practices.
- Bonus: Hands-on experience with server-level configuration and infrastructure—setting up load balancers, API gateways, and reverse proxies.
Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
- Minimum 3 years of professional experience in backend development, with strong expertise in Python and SQL.
- Proven track record building and maintaining CI/CD pipelines using GitLab CI.
- Familiarity with containerization and orchestration technologies: Docker, Kubernetes.
- Solid understanding of software development lifecycle (SDLC) best practices, design patterns, and version control (Git).
- Excellent problem-solving, debugging, and communication skills.
- Ability to work independently and collaboratively in a fast-paced environment.
- Plus: Experience with front-end technologies (HTML, CSS, JavaScript) and cloud platforms (AWS, GCP, Azure).
Financial Package:
Competitive salary in line with experience: ₹10–20 Lakhs per annum, contingent on qualifications and experience.
Job description – Backend Developer
About Wekan Enterprise Solutions
Wekan Enterprise Solutions helps companies grow by modernizing their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies. With a strong focus on Cloud, Mobile and IoT environments, our solutions help companies reduce TCO and improve their ROI on their technology investments. We are also the #1 MongoDB Global Strategic SI partner for mobile modernization.
Location - Chennai or Bangalore
Who are you ? An individual with...
- Good problem solving skills
- Good understanding of software design patterns.
- Believes in software as an enabler and is not constrained by one language or technology and is willing to scale with the product needs.
- Passion for Quality in the work being done.
- Excellent verbal and written communication skills.
Roles & Responsibilities
- Building and developing products and platforms for both client side as well as server-side scalable applications. These include designing Omni-channel (mobile, tablet & web) applications.
- Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant, and efficient systems.
- Suggest & implement best practices for performance tuning while working on the larger datasets.
- Maintain quality and ensure responsiveness of applications.
- Perform design reviews and code Reviews with the Team
- Provide real time knowledge transfer to the team on the Requirements I UI Design & Development.
- Manage the infrastructure & deployment of the release artefacts by coordinating with respective peoples.
- Work in an agile environment with the defined sprints to deliver the assigned work in the stipulated timelines.
- Adhere to software development best practices and coding standards in all work products and participate in the refinement of those practices and standards to improve quality and productivity.
Skills
- Must have strong 4 to 5 years of hands on experience Web Applications Development with good expertise in Node JS Stack using ORM like mongoose/Typeorm.
- Proven experience building application using micro service environment using Docker/Kubernetes platform.
- Experience in creating node modules and packaging through package manager’s.
- Strong development and coding skills, good analytical and problem-solving skills.
- Experience in writing JUnitest cases & performing code coverage using tools like mocha/sonarcube/hudson.
- Rest API implementation using GraphQL.
- Experience is building Dashboards with any chart library in Angular is a must 5. Experience in writing Restful API’s using Node/Python/Scala/Java, etc.
- Knowledge of modern authorization mechanisms such as JSON Web Token, OAuth2.
- Familiarity with code versioning tools such as Git, Bit bucket
- Experience in working on Build Tools like NPM, Gulp, Bower, and Web pack.
- Understanding of Agile & Scrum development methodology.
- Knowledge of AWS, Azure will be an added advantage.
Tools & Technologies
Web Technologies: 1 NodeJS, HTML5, CSS3, jQuery, Bootstrap, JavaScript, AJAX, Postman, REST API, Express 2. Testing:Jest, Karma 3. Databases: Mongodb, NoSQL, Redis 4. Code Management: Git, Bit bucket 5. Operating System: Mac, Linux, Windows 5. Cloud Technologies: AWS, Azure.
JOB DESCRIPTION:
- Experience range – 4 to 7 years
- Good understanding of software engineering practices, SDLC.
- Strong in analytical, design and problem-solving skills, with a strong desire to create new things, dive in wherever there’s a need and learn new things
- Hands-on experience in Java / J2EE application development using open-source frameworks like Spring.
- Experience in unit test frameworks like JUnit
- Need to optimize code and test programming modules
- Excellent Object-Oriented Analysis & Design skills.
- Must have experience in Software design using design patterns. Exposure to technical solutions will be an advantage
- Must have experience in relational database technologies with experience on databases such as PostgreSQL, MySQL
- Strong proficiency with Java programming - Must have experience on Micro-Services using Spring boot.
- Good to have experience in JavaScript
- Good to have previously worked on distributed systems
- Good to have a working knowledge of Redis
- Good to have exposure to stream processing and functional programming
- Strong sense of ownership and accountability.
- Excellent communication and teamwork skills
ROLES & RESPONSIBILITIES:
- Lead a team of 4- 8 engineers closely with complete authority and accountability to deliver high-quality software products in a fast-paced environment.
- Lead your team to design and develop applications based on Microservices architecture.
- Guide your team members on the latest technologies including Java, Spring, Spring-Boot, Angular, Hibernate, Redis, Hazelcast, Bootstrap, jQuery etc.
- Leverage development tools including AWS, GIT, Nginx, Jira, Confluence, Jenkins etc.
- Collaborate with other technical managers, architects, and product owners to build an integrated enterprise-class software product suite
Skills
- Java, Spring Boot – Must, Spring Data, ReactJS, DevOps, HTML5, CSS3, JavaScript ES6 & above – Good to have
Roles & Responsibilities:
- Excellent problem-solving & analytical skills & OO principles
- Solid understanding of the data structure & algorithms.
- Expert knowledge with any one of the Javascript Framework such as Node Js.
- Any additional experience with Java or python, GoLang would be nice to have.
- Experience working with SQL database like MySQL or PostgreSQL
- Experience working with NoSQL databases like mongoDB, couchbase would be nice to have
- Working experience with cache like redis, mem cached or elasticache would be nice to have
- Working experience with Message Queues would be a great advantage.
- Experience with deployment & AWS would be nice to have
- Ability to do in depth analysis or problem statement or use case & Build robust & scalable architecture
- Logging & monitoring of the production system in real time
- Lead a team of 2-4 team members & make sure team practices defined coding practices across the project.
Role- Software Development Engineer-2
As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward.
Top Skills
You write high quality, maintainable, and robust code, often in Java or C++ or C#
You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.
You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.
Roles & Responsibilities
You solve problems at their root, stepping back to understand the broader context.
You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
You recognize and use design patterns to solve business problems.
You understand how operating systems work, perform and scale.
You continually align your work with Amazon’s business objectives and seek to deliver business value.
You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
You communicate clearly with your team and with other groups and listen effectively.
Skills & Experience
Bachelors or Masters in Computer Science or relevant technical field.
Experience in software development and full product life-cycle.
Excellent programming skills in any object-oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.
Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.
Proficiency in SQL and data modeling.










