
Job Title: Data Engineer
Location: Pune, India
Experience: 5 to 9 years
Job Description:
We are seeking a talented and experienced Data Engineer to join our team in Pune. The ideal candidate will have a strong background in data engineering with expertise in Python, AWS, Spark, and Scala. This role is critical to our data infrastructure, ensuring that our data pipelines are robust, efficient, and scalable.
Required Skills:
- Python: Advanced proficiency with extensive experience in building data pipelines.
- AWS: Hands-on experience with AWS services such as S3, Lambda, Redshift, Glue, and EMR.
- Spark: Proficient in using Apache Spark for large-scale data processing.
- Scala: Working knowledge of Scala for Spark programming.
- Strong understanding of data warehousing concepts and ETL processes.
- Experience with SQL and relational databases.
- Familiarity with data governance and security best practices.
- Excellent problem-solving skills and attention to detail.
- Strong communication and collaboration skills.

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 Title : Python Backend Lead / Senior Python Developer
Experience : 6 to 10 Years
Location : Bangalore (CV Raman Nagar)
Openings : 8
Interview Rounds : 1 Virtual + 1 In-Person (Face-to-Face with Client)
Note : Only local Bangalore candidates will be considered
About the Role :
We are seeking an experienced Python Backend Lead / Senior Python Developer to design, develop, and optimize scalable backend solutions.
The role involves working with large-scale data, building efficient APIs, integrating middleware solutions, and ensuring high performance and reliability.
You will lead a team of developers while also contributing hands-on to coding, design, and architecture.
Mandatory Skills : Python (Pandas, NumPy, Matplotlib, Plotly), FastAPI/FlaskAPI, SQL & NoSQL (MongoDB, CRDB, Postgres), Middleware tools (Mulesoft/BizTalk), CI/CD, RESTful APIs, OOP, OOD, DS & Algo, Design Patterns.
Key Responsibilities :
- Lead backend development projects using Python (FastAPI/FlaskAPI).
- Design, build, and maintain scalable APIs and microservices.
- Work with SQL and NoSQL databases (MongoDB, CRDB, Postgres).
- Implement and optimize middleware integrations (Mulesoft, BizTalk).
- Ensure smooth deployment using CI/CD pipelines.
- Apply Object-Oriented Programming (OOP), Design Patterns, and Data Structures & Algorithms to deliver high-quality solutions.
- Collaborate with cross-functional teams (frontend, DevOps, product) to deliver business objectives.
- Mentor and guide junior developers, ensuring adherence to best practices and coding standards.
Required Skills :
- Strong proficiency in Python with hands-on experience in Pandas, NumPy, Matplotlib, Plotly.
- Expertise in FastAPI / FlaskAPI frameworks.
- Solid knowledge of SQL & NoSQL databases (MongoDB, CRDB, Postgres).
- Experience with middleware tools such as Mulesoft or BizTalk.
- Proficiency in RESTful APIs, Web Services, and CI/CD pipelines.
- Strong understanding of OOP, OOD, Design Patterns, and DS & Algo.
- Excellent problem-solving, debugging, and optimization skills.
- Prior experience in leading teams is highly desirable.
Company has a math-learning platform with a meticulously designed curriculum that helps students become 4x quicker and better at math by nurturing their cognitive abilities and building their core math acumen.
The vision of the company is to build the most thought through math curriculum using personalised AI-aided methodology, which builds confidence in students, by enabling them to apply math in the real world.
Responsibilities:
- Design, develop, test, deploy and maintain software
- Delivering high quality and well-structured code
- Manage individual project priorities and deadlines
- Participate in enhancing tools and processes
- Participate in production observance and technical incident management
- Ability to quickly learn and adapt to keep up in a fast-paced environment
Must haves:
- Strong data structure concepts
- Great problem-solving skills
- Working knowledge of at least one or more of Java / JavaScript / C / C++ / Golang / Python
- Exposure to RDBMS and/or NoSQL databases
- Working knowledge of GitHub, CI/CD, Devops
Good to have:
- Any cloud exposure like AWS, GCP or Azure
- Hands-on experience with Docker containers, Kubernetes etc
Qualifications:
Bachelor’s or Master’s degree in computer science or related field with a minimum of 2 years of experience.
A zeal to learn and ability to enjoy the journey more than the destination is a must
Job Responsibilities:
● Design, test, and build scalable backend python services
● Closely collaborate with marketing and product teams to build innovative, robust, and easy-to-use features that serve.
● Developing high-quality code based on detailed designs that cater to the product requirements.
● Responsible for troubleshooting, testing, and maintaining the core product software and databases to ensure strong optimization and functionality
Required Skills:
● Degree in Computer Science, Software Engineering or equivalent.
● Minimum 3+ years experience in software development.
● Expertise in Python 3.7, Django 2.2+, and REST APIs.
● Willingness to learn and ability to flourish in a dynamic, high-growth, entrepreneurial environment
● Hands-on, self-starter, capable of working independently
● True love for technology and what you do
● Maniacal attention to detail
Must have - Strong python
Roles and Responsibilities:
- Combine excellent abstract reasoning ability to document, architect, develop and test software with the commitment to excellence/defect free before being deployed.
- Write and implement low latency applications & software solutions that integrate with different systems.
- Rapidly incorporate new technologies as required & deliver successfully by self.
- Work closely with mentors, team members, team leads, program managers and stakeholders to investigate, fix, optimize, test and deploy high quality solutions.
- Drive the technical design, implementation and maintenance of larger tech initiatives geared toward improving and scaling of products.
- Accurately schedule & and track progress of self & team members. Create end to end Work Breakdown & estimates for modules being implemented.
- Participate in planning & recognizing inconsistencies (e.g., scope, resources, feasibility, usability, customer value, etc.) in product requirements and alert the Project Mentor. Handle independently or assist the Mentor in building, testing, and documenting product releases.
- Support the team in deploying product functionality & assist the TLs in troubleshooting in the production environment.
- Proactively promote Tech Culture by writing blogs, making presentations which will help you learn & grow.
- Effectively communicate one-on-one with on-shore / off-shore product teams / developers; gather and clarify requirements from technical folks / product managers / business teams.
- Proactively assist and serve as a role model for the team members to follow the team software development process; consistently innovate the team processes to improve team productivity and quality.
Skill Set:
- Strong Analytical, Problem Solving Skills and participates in all activities with urgency, a results orientation, and a strong work ethic.
- Must have technical knowledge of Python.
- Must have hands-on experience in developing Restful APIs and Web Services.
- Knowledge of Django (or any other established Python web frameworks) would be a plus.
- Knowledge of Angular or React or similar technologies would be an added advantage.
- Strong experience with relational (PostgreSQL, MySQL) and/or NoSQL databases.
- Experience with unit testing and test-driven development.
- Experience working with Linux/Unix Operating system & comfortable with command line.
- Experience with modern software engineering workflows and tools (e.g. Agile, JIRA, Git, CI/CD, Amazon Web Services, Observability and Monitoring tools like ELK, Datadog, NewRelic, etc.).
- Experience in all areas of SDLC, including architecture and design, development, and testing.
- Extremely passionate about code reviews, engineering best practices and mentoring/coaching the developers to make them successful.
- Excellent understanding of feature estimation and ability to communicate issues and risks that may impact timelines, budget, or resources.
- Experience with Agile development lifecycle.
- Can gather and clarify requirements from technical folks / product managers / business teams.
- Lead by example & act as a role model for the team.
How will you grow here:
- Work in multiple projects & teams spread across different domains and technologies.
- Work & interact directly with senior directors in an open and flat hierarchical structure.
- You can own all aspects of leading software products and projects.
- You get to work with top-notch engineers and leaders with decades of experience in building and delivering great software.
- Work with CXOs / Senior Directors of various emergent companies in US & India.
- Get involved with the newest products, latest technologies and different methodologies.
- Opportunity to Mentor the Best and Get Mentored by the Best.
How we thank you for your invaluable contribution:
- Events, activities and outings aplenty (We really party hard!).
- A stimulating and energetic work environment which encourages creativity.
- Hackathons, Gaming Evenings, Poker Nights and much more!
- Flexible Timings, Flexible Holiday Calendar, Work from Home Option.
- Competitive salary (best in the industry).
- Beverages and snacks throughout the day, on the house!
- Recreation center to let off some steam.
- Office lunch option (fresh and savoury ghar ka khana).
- Medical Insurance (stay healthy, stay happy)
The B2B manufacturing industry has a lack of digitisation globally. NowPurchase is building layers of technology to help improve the productivity and profits of the manufacturer. For this we are building the OS (Operating System) that will seamlessly connect factory equipment such as furnaces and spectrometers to our software systems that provide real time optimisations.
The end-game is to use this interconnected system to do great production planning and autonomous procurement of their raw materials. The Heart of NowPurchase will be a marketplace consisting of these smart factories and raw material suppliers.
Here a video that explains our product journey:
https://www.loom.com/share/ccd0ed9e7bc349d7bba851d762253c21">https://www.loom.com/share/ccd0ed9e7bc349d7bba851d762253c21
This is fully a remote role, but the employer needs to fly down to the office in Kolkata for 5–6 days every month. Plane tickets and accommodation will be reimbursed by the company.
Role Description
NowPurchase is looking to add an immensely talented Senior Backend Engineer that will help us invent, design, refine and deliver products that will meet the above vision.
- Expect to build a lot of services and APIs in the cloud and stand-alone IoT devices to serve both the browser as well as native IoT enabled terminals that will be placed at the manufacturers' premises.
- Expect designing algorithms that model the metallurgy of the manufacturing processes as well as using tools such as linear programming, machine learning etc.
- You need to lead the backend team to make sure they are delivering high quality code and is constantly inspired to experiment with tools to push out MVPs.
What are the expectations from this role?
- Deliver high quality modular code deployed to serve web, mobile and native IoT enabled terminals that leverage REST-based services and real time sockets. This would include algorithms for real time optimizations that are critical for the manufacturing process.
- You are empowered to work directly with leadership and the product team to make decisions about your code and future of the product.
- Have a strong emphasis on shipping features quickly without sacrificing code quality. Be ready to build a lot of MVPs that will go through iteration or be completely scrapped depending on the outcome at the customer end.
- Own your Agile projects and lead the team from software design to implementation and deployment. Maintain sprints, delivery timelines and contribute to better managing the engineering team.
- Collaborate on the end to end design and implementation of the platform, including data modeling, systems architecture, data security, access controls, architecture, user experience, deployment, automation, and monitoring.
- Maintain a high level of data integrity, quality and security checks.
- Develop data pipelines and RESTful services that are distributed, robust and highly performant.
- Build a culture of simplicity and pragmatism, which is reflected in your elegant code that other developers emulate and you ensure through thorough code reviews and processes.
Qualifications and Experience
- 4+ years of demonstrated software engineering experience in an agile environment designing, architecting and implementing robust scalable systems preferably for modern SaaS application
- 1+ years of technical leadership experience
- Experience with modern server-side programming languages such as Python, Scala, Go. Experience with web frameworks such as Django Rest Framework, Flask.
- Experience with architecting asynchronous services with design patters leveraging PostgreSQL, MongoDB, Redis, Celery for storage and multi-tenant servers over AWS Elastic BeanStalk.
Compensation & Benefits
- **Cash Compensation:** As per industry standards & pedigree of candidate
- **ESOPs:** 10% of NowPurchase is dedicated to current & future team members. Your package would entail some ESOPs so that you own a part of the company and grow along with it.
- **Medical Insurance:** Benefits of group insurance of 3 lakhs for family including parents, spouse, children
- **Generous leave structure and WFHs** including Marriage, Maternity & Paternity leaves
- **Complete Relocation Expenses:** We are building a unicorn out of the city of Joy (Kolkata). We will pay for everything you spend to relocate here.
**Possible Growth path**
Senior Backend End Engineer > Engineering Manager > VP of Engineering
**Tech Stack**
- React/Redux
- Python/Django/Celery
- Git, AWS, ELB (Elastic Beanstalk), Netlify
- PostgreSQL/Redis/S3
## **Hiring Process**
1. Screening of applicants & initial telephonic call with Manager -HR
2. F2F/Video Interview with Engineering Manager and Cofounder CTO
3. Take home written assessment
4. F2F/Video Interview with Cofounder CEO
5. Email communication on final feedback
The end to end process shall take less than 10 days. We pride ourselves on being transparent & moving fast.
*Candidates who accept an offer may join within 1 hour, 1 week or up to 45days of signing - though, we have a preference for as short a gap period between signing and joining since we're at the most exciting part of our journey - laying the foundation for the NowPurchase platform!*
Looking Data Enginner for our OWn organization-
Notice Period- 15-30 days
CTC- upto 15 lpa
Preferred Technical Expertise
- Expertise in Python programming.
- Proficient in Pandas/Numpy Libraries.
- Experience with Django framework and API Development.
- Proficient in writing complex queries using SQL
- Hands on experience with Apache Airflow.
- Experience with source code versioning tools such as GIT, Bitbucket etc.
Good to have Skills:
- Create and maintain Optimal Data Pipeline Architecture
- Experienced in handling large structured data.
- Demonstrated ability in solutions covering data ingestion, data cleansing, ETL, Data mart creation and exposing data for consumers.
- Experience with any cloud platform (GCP is a plus)
- Experience with JQuery, HTML, Javascript, CSS is a plus.
We are looking for an experienced individual to join our engineering teams as a python developer.
You would be responsible for developing solutions as per business requirements. Working closely with a global team of developers and product managers and develop the solution according to the business requirements.
Required/ Must have:
• Be passionate about programming
• Understand requirements, validate assumptions, and design and develop solutions independently for users
• Ability to learn new python skills to deliver solutions
• Writing reusable, testable, and efficient code
• Identify and suggest various opportunities to improve efficiency and functionality.
• An ability to perform well in a fast-paced environment
• Review existing python solutions for quality and provide feedback
• Agile methodology experience with able to translate user stories and features into python code
• Knowledge of Pandas and experience of automating Microsoft excel and preferably other office apps
• Be flexible to learn and undertake other responsibilities as required by the team
Preferable/Good to have:
• Good knowledge in writing QA test cases and performing QA is preferable
• Coordinate with internal teams to understand user requirements and provide technical solutions
• Write and implement software solutions that integrate different systems.
• Work experience with libraries: Win32, Openpyxl, Pypdf, Pandas, Selenium
• Hands on experience with Git repository
• SQL experience is preferred
• Good Interpersonal Skills & Ability to work Independently









