
Data Engineer
Experience: 4–6 years
Key Responsibilities
- Design, build, and maintain scalable data pipelines and workflows.
- Manage and optimize cloud-native data platforms on Azure with Databricks and Apache Spark (1–2 years).
- Implement CI/CD workflows and monitor data pipelines for performance, reliability, and accuracy.
- Work with relational databases (Sybase, DB2, Snowflake, PostgreSQL, SQL Server) and ensure efficient SQL query performance.
- Apply data warehousing concepts including dimensional modelling, star schema, data vault modelling, Kimball and Inmon methodologies, and data lake design.
- Develop and maintain ETL/ELT pipelines using open-source frameworks such as Apache Spark and Apache Airflow.
- Integrate and process data streams from message queues and streaming platforms (Kafka, RabbitMQ).
- Collaborate with cross-functional teams in a geographically distributed setup.
- Leverage Jupyter notebooks for data exploration, analysis, and visualization.
Required Skills
- 4+ years of experience in data engineering or a related field.
- Strong programming skills in Python with experience in Pandas, NumPy, Flask.
- Hands-on experience with pipeline monitoring and CI/CD workflows.
- Proficiency in SQL and relational databases.
- Familiarity with Git for version control.
- Strong communication and collaboration skills with ability to work independently.

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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- Application
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Experience: 8–15 Years
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- Strong communication and client-facing skills.
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- Passionate about clean code and quality deliverables.
- Prior experience in building and deploying multiple products in production.
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Development:
- Develop and maintain the front-end and back-end of web applications.
- Ensure the performance, quality, and responsiveness of applications.
- Collaborate with a team to define, design, and ship new features.
Maintenance and Optimization:
- Maintain code integrity and organization.
- Identify and correct bottlenecks and fix bugs.
- Continually work on optimizing the performance of different applications.
Security: Ensure the security of the web applications by integrating security best practices.
- Regularly update the system to protect against vulnerabilities.
Innovation:
- Research and implement new technologies and frameworks that can improve the performance and user experience of the platform.
- Stay informed on emerging technologies and trends that can potentially impact the company's products and services.
Collaboration and Communication:
- Work closely with other departments to understand their needs and translate them into technical solutions.
- Communicate technology strategy to partners, management, investors, and employees.
Project Management:
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Mentoring and Team Building:
- Foster a culture of innovation and excellence within the technology team.
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Back-End Development:
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- Node.js: JavaScript runtime environment for building scalable network applications.
- Ruby on Rails: A server-side web application framework written in Ruby.
Database Management:
- SQL Databases: MySQL, PostgreSQL for structured data storage.
- NoSQL Databases: MongoDB, Cassandra for unstructured data or specific use cases.
Server Management:
- Nginx or Apache: For server and reverse proxy functionalities.
- Docker: For containerizing applications and ensuring consistency across multiple development and release cycles.
- Kubernetes: For automating deployment, scaling, and operations of application containers.
DevOps and Continuous Integration/Continuous Deployment (CI/CD):
- Git: For version control.
- Jenkins, Travis CI, or CircleCI: For continuous integration and deployment.
- Ansible, Chef, or Puppet: For configuration management.
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- AWS: For various cloud services like computing, database storage, content delivery, etc.
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- OAuth, JWT: For secure authentication mechanisms.
- SSL/TLS: For secure data transmission.
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Performance Monitoring and Testing:
- Selenium, Jest, or Mocha: For automated testing.
- New Relic or Datadog: For performance monitoring.
Data Science and Analytics:
- Python Libraries: NumPy, Pandas, or SciPy for data manipulation and analysis.
- Machine Learning Frameworks: TensorFlow, PyTorch for implementing machine learning models.
Other Technologies:
- GraphQL: For querying and manipulating data efficiently.
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Responsibilities :
1) Design and develop robust, scalable, and efficient software applications, APIs, and web services using modern technologies.
2) Collaborate with product managers, designers, and other developers to understand project requirements, user stories, and technical specifications.
3) Write clean, maintainable, and well-documented code following best practices and coding standards.
4) Perform thorough testing and debugging to ensure software quality and reliability.
5) Optimize application performance and implement security measures.
6) Stay up-to-date with industry trends and emerging technologies, and continuously improve technical skills.
7) Participate in code reviews to provide and receive constructive feedback.
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9) Work in an agile development environment, actively participating in sprint planning, stand-ups, and retrospectives.
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Requirements :
1) Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent work experience).
2) Proven experience as a Full Stack Developer or similar role, with a strong portfolio of completed projects.
3) Proficiency in front-end technologies such as HTML, CSS, JavaScript, and modern frameworks like React, Angular, or Vue.js.
4) Strong knowledge of back-end technologies such as Node.js, Python, Ruby, or Java.
5) Experience with databases and ORM frameworks (e.g., MySQL, PostgreSQL, MongoDB, SQLAlchemy, Hibernate).
6) Familiarity with cloud platforms (e.g., AWS, Azure, Google Cloud) and serverless architecture.
7) Knowledge of version control systems (e.g., Git) and collaboration tools (e.g., Jira, Trello).
8) Solid understanding of software development principles, design patterns, and best practices.
9) Excellent problem-solving skills and the ability to analyze and resolve complex technical issues.
10) Strong communication skills and the ability to work effectively in a team environment.
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1) Experience with containerization technologies (e.g., Docker, Kubernetes).
2) Familiarity with DevOps practices and CI/CD pipelines.
3) Experience with Agile/Scrum methodologies.
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- Research, evaluate, analyse and implement technical requirements.
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- Mentor Junior members of the team.
Requirements :
- 3 to 5 yrs of experience building scalable products, distributed applications product/services in JavaScript and one of angular/react.
- Min 2+ experience working on Node.js and its frameworks.
- Knowledge of both SQL and NoSQL database services and related tools with the expertise to create efficient schemas.
- Strong coding and problem solving skills.
- Understanding of multiple delivery platforms, such as mobile vs. web and developing responsive UI.
- Ability to own end-to-end deliveries, right from requirements till release.
- Excellent coding skills and ability to produce high quality, bug free and testable production grade code.
- Designing unit test cases, integrated test cases using Selenium and Protractor.
- Experience working in an Agile/Scrum development process.
-Ability to mentor junior members of the team.
- Ability to review code and continuously push for higher standards of development.
Roles and Responsibility:
• Lead the entire back-end and front-end technology team and act as the go-to resource with in-depth knowledge of technology and product best practices and standards.
• Build scalable backend product architecture that scales through millions of transactions per day.
• Build support systems for monitoring, billing, administration, etc.
• Acting as a single person of contact for the entire product vertical and liaising with the business team to aid the business needs.
• Directly Responsible for the user experience on the platform. Willingness to learn new technologies as required and able to incorporate machine-learning, AI and Big data as the product evolves.
• Responsible for validating the technical feasibility of product ideas, and suggesting likely technical platforms and build-buy options for such ideas.
• Plan and set up a smooth development cycle for getting features from user stories to products.
• Responsible for building deep tech products related to Face Biometrics, Image Forensics, and Risk Analysis.
Skills Required:
Must have:
• Candidate with minimum 5-10 years of solid tech experience, preferably in a growing Start-up.
• Proven Experience in leading the full cycle of mobile (Android/IOS) and web application development processes, from design to implementation.
• Well-versed with tech stacks like Node, Python, Java and/or other latest languages.
• Proven ability to build a solid team and thrive in a dynamic environment.
• Experience with performance testing and optimization of the application for maximum speed and scalability.
• Great analytical skills, data-driven decision making and evolution with technology trends.
• Stronghold in backend development and algorithms.
• Experience with Machine Learning and Data Analysis.
Good to have:
• Exposure to financial risk modeling is a plus.
• Exposure to Image Processing is a plus.
• Exposure to the blockchain is a plus.
The right candidate should be commercially knowledgeable (business acumen) and pragmatic, and have an understanding of a wide range of technologies and methodologies, and should have the ability to choose which fits best. Experience building a technology team or work with a small team from start at a start-up is a plus.
We offer a suite of memberships and subscriptions to spice up your lifestyle. We believe in practicing an ultimate work life balance and satisfaction. Working hard doesn’t mean clocking in extra hours, it means having a zeal to contribute the best of your talents. Our people culture helps us inculcate measures and benefits which help you feel confident and happy each and every day. Whether you’d like to skill up, go off the grid, attend your favourite events or be an epitome of fitness. We have you covered round and about.
- Health Memberships
- Sports Subscriptions
- Entertainment Subscriptions
- Key Conferences and Event Passes
- Learning Stipend
- Team Lunches and Parties
- Travel Reimbursements
- ESOPs
Thast what we think would bloom up your personal life, as a gesture for helping us with your talents.
Join us to be a part of our Exciting journey to Build one Digital Identity Platform!!!
CTC - 12 to 14 LPA
Experience - 3+ Years
Skills:
- Mandatory experience on Angular 2+
- Hands-on experience on MEAN stack
- Proficient with OOPS and design patterns
- Frontend using Angular 2+/ReactJS/VueJS
- Backend using NodeJS (ExpressJS/SailsJS)/Python/Java
- Good understanding of NoSQL & SQL databases
- HTML, CSS(Knowledge of web semantics, CSS Pre-processors preferable)
- Should be able to translate design to HTML, CSS Git
Good to have:
Mobile app experience using react-native, flutter, etc
AWS/Azure/GCP
Experience:
3+ years
At least one application in production











