
Location: Pune
Required Skills : Scala, Python, Data Engineering, AWS, Cassandra/AstraDB, Athena, EMR, Spark/Snowflake

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.
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Job Description
We are seeking a highly skilled and experienced Backend Engineer to join our dynamic and fast-paced development team in Bangalore. The ideal candidate will have expertise in Java development, particularly in Java 8 or above, and extensive hands-on experience with Apache Spark, Spark Streaming, and Spring Boot for developing scalable and high-performance microservices. The candidate must also have strong problem-solving skills, a deep understanding of distributed computing, and experience with cloud technologies (Azure).
Key Responsibilities
- Design, develop, and maintain highly scalable microservices and optimized RESTful APIs using Spring Boot in Java 8 or above.
- Write efficient and maintainable Spark and Spark Streaming code for processing large-scale data in real-time.
- Implement Java 8 advanced features such as Functional Interfaces, Lambda Expressions, Streams, Parallel Streams, Completable Futures, and Concurrency API improvements.
- Work with relational (SQL) and non-relational (Cosmos DB) databases for data modeling and optimization.
- Utilize Maven for building and deploying artifacts to the snapshot repository.
- Collaborate with cross-functional teams, including Product, Business, Automation, and other stakeholders, to define, design, and deliver new features.
- Follow Agile SCRUM methodologies for software development and actively participate in sprint planning and retrospective meetings.
- Maintain version control using Git and ensure best practices for code collaboration and peer code reviews.
- Implement CI/CD pipelines using tools such as Jenkins and GitHub Actions to automate build and deployment processes.
- Work with Azure Cloud Technologies to build and deploy cloud-based applications.
- Apply software design patterns and best practices in backend development to enhance system architecture and scalability.
- Troubleshoot and debug applications, ensuring high performance, security, and scalability.
- Keep up to date with the latest industry trends, tools, and technologies to continuously improve development processes.
Minimum Qualifications
- BS/MS in Computer Science or equivalent.
- 4+ years of industry experience in developing highly scalable microservices and optimized RESTful APIs using Spring Boot in Java 8 or above.
- 3+ years of experience in version control tools like Git.
- 3+ years of experience working in an Agile SCRUM environment.
- Strong understanding of software design patterns and distributed computing concepts.
- Solid experience in relational and non-relational databases (SQL and Cosmos DB).
- Experience with Maven for building and managing dependencies.
- Knowledge of CI/CD workflows and experience with Jenkins and GitHub Actions.
- Prior enterprise experience in working with Azure Cloud Technologies.
- Proven ability to work collaboratively with cross-functional teams to deliver high-quality product features.
- Strong problem-solving skills, debugging techniques, and ability to troubleshoot complex issues efficiently.
Preferred Qualifications
- Experience with Kafka or other messaging queues for real-time data processing.
- Exposure to Docker, Kubernetes, and container orchestration tools.
- Hands-on experience with NoSQL databases like MongoDB, Cassandra, or DynamoDB.
- Experience with performance optimization techniques for backend applications.
- Knowledge of test-driven development (TDD) and unit testing frameworks like JUnit.
Roles and Responsibilities
2. Design software and make technology choices across the stack (from data storage to application to front-end)
3. Understand a range of tier-1 systems/services that power our product to make scalable changes to critical path code
4. Own the design and delivery of an integral piece of a tier-1 system or application
5. Work closely with product managers, UX designers, and end users and integrate software components into a fully functional system
6. Work on the management and execution of project plans and delivery commitments
7. Take ownership of product/feature end-to-end for all phases from the development to the production
8. Ensure the developed features are scalable and highly available with no quality concerns
9. Work closely with senior engineers for refining and implementation
10. Manage and execute project plans and delivery commitments
11. Create and execute appropriate quality plans, project plans, test strategies, and processes for development activities in concert with business and project management efforts
Bachelor’s degree in computer science or other technical/scientific discipline
● Solid experience with cloud environments like Azure, GCP, AWS
● Proficient with CI/CD tools such as CircleCI, Travis, Jenkins, Ansible, Terraform, Puppet, Chef
● Strong expertise in Serverless architecture, Kubernetes cluster, and service mesh.
● Strong hands-on experience with monitoring tools such as Prometheus
● Ability to program with one or more high-level languages, such as Python, Java, Ruby, and JavaScript
● Familiar with Git
● Experience with performance monitoring and optimization. Ideally worked on large scale e-commerce projects
Experience:
The candidate should have about 2+ years of experience with design and development in Java/Scala. Experience in algorithm, data-structure, database and distributed System is mandatory.
Required Skills:
Mandatory: -
- Core Java or Scala
- Experience in Big Data, Spark
- Extensive experience in developing spark job. Should possess good Oops knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complexity of spark job.
- Working knowledge of Unix/Linux.
- Hands on experience in Spark, creating RDD, applying operation - transformation-action
Good To have: -
- Python
- Spark streaming
- Py Spark
- Azure/AWS Cloud Knowledge of Data Storage and Compute side
Your Opportunity
- Own and drive business features into tech requirements
- Design & develop large scale real time server side systems
- Quickly create quality prototypes
- Staying updated on emerging technologies
- Ensuring that all deliverables adhere to our world class standards
- Promote coding best practices
- Mentor and develop junior developers in the team
Required Experience:
- 4+ years of relevant experience as described below
- Excellent grasp of Core Java, Multi Threading and OO design patterns
- Experience with Scala, functional, reactive programming and Akka/Play is a plus
- Excellent understanding of data structures and algorithms
- Solid grasp of large scale distributed real time systems
- Prior experience on building a scalable and resilient micro service
- Solid understanding of relational databases, NoSQL databases and Caching systems
- Good understanding of Big Data technologies such as Spark, Hadoop is a plus
- Experience on one of AWS, Azure or GCP
Who you are :
- You have excellent and effective communication and collaborative skills
- You love problem solving
- You stay up to date with the latest technologies and then apply them in real life
- You love paying attention to detail
- You thrive in meeting tight deadlines and prioritising workloads
- Ability to collaborate across multiple functions
Education:
Bachelor’s degree in Engineering or equivalent experience within the field








