
Job title - Python developer
Exp – 4 to 6 years
Location – Pune/Mum/B’lore
PFB JD
Requirements:
- Proven experience as a Python Developer
- Strong knowledge of core Python and Pyspark concepts
- Experience with web frameworks such as Django or Flask
- Good exposure to any cloud platform (GCP Preferred)
- CI/CD exposure required
- Solid understanding of RESTful APIs and how to build them
- Experience working with databases like Oracle DB and MySQL
- Ability to write efficient SQL queries and optimize database performance
- Strong problem-solving skills and attention to detail
- Strong SQL programing (stored procedure, functions)
- Excellent communication and interpersonal skill
Roles and Responsibilities
- Design, develop, and maintain data pipelines and ETL processes using pyspark
- Work closely with data scientists and analysts to provide them with clean, structured data.
- Optimize data storage and retrieval for performance and scalability.
- Collaborate with cross-functional teams to gather data requirements.
- Ensure data quality and integrity through data validation and cleansing processes.
- Monitor and troubleshoot data-related issues to ensure data pipeline reliability.
- Stay up to date with industry best practices and emerging technologies in data engineering.

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
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Shortened version:
- 5+ years experience in Python with strong core concepts (OOP, data structures, exception handling, problem-solving)
- Experience with FastAPI (preferred) or Flask/Django
- Strong REST API development & authentication (JWT/OAuth)
- SQL (MySQL/PostgreSQL) & NoSQL (MongoDB/Firestore) experience
- Basic cloud knowledge (GCP or AWS)
- Git, code reviews, clean coding & performance optimization
- Good communication and teamwork skills
Responsibilities:
- Build and maintain scalable backend apps and REST APIs
- Work with databases, third-party integrations, and cloud deployments
- Write clean, testable, optimized code
- Debug, troubleshoot, and improve performance
- Collaborate with team on technical solutions
Good to have:
- GCP (BigQuery, Dataflow, Cloud Functions)
- Microservices, Redis/Kafka/RabbitMQ
- Docker, CI/CD
- Basic Pandas/Numpy for data handling
Perks & Benefits
- 5 Days Working
- Family Health Insurance
- Relaxation Area
- Affordable Lunch
- Free Snacks & Drinks
- Open Work Culture
- Competitive Salary & Benefits
- Festival Celebrations
- International Exposure Opportunities
- 20 Paid Leaves per Year
- Marriage Leave & Parental Leave Policy
- Deployment and production support.
- Strong knowledge of SQL database and experience in writing queries with and without ORM.
- Designing and creating RESTful APIs for internal and partner consumption
- Experience of code versioning tools, such as Git, Bitbucket, Github
Who we are looking for
A candidate who can design, build and configure applications to meet business process and application requirements.
Key Role Requirements:
- Experience in Java-J2EE Development
- Hands-on experience in Struts (Core Java, JSP, Servlets, EJB) framework.
- Hands-on experience in Oracle SQL, Procedures
- Hands-on experience in Spring boot, Spring batch
- Should have worked on application servers like IBM WAS / Jboss / Web logic.
- Knowledge of basic Linux commands and BIRT reporting tool is an added advantage.
- Knowledge in SVN or any other version control is an added advantage.
- Knowledge in Build tool like ANT, Maven is an added advantage
- Strong problem solving and analytical capabilities.
- Python knowledge: object-oriented programming: inheritance, abstract classes, dataclass, dependency injection, design patterns: comand-query, repository, adapter, hexagonal architecture, swagger/Open API, flask, connexion
- Experience on AWS services: lambda, ecs, sqs, s3, dynamodb, auroradb
- Experience with following libraries boto3, behave, pytest, moto, localstack, docker
- Basic knowledge about terraform, gitlab ci
- Experience with SQL DB
- Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement
- Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience
- Developing ideas for new programs, products, or features by monitoring industry developments and trends
- Recording data and reporting it to proper parties, such as clients or
-
leadership
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- Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members
- Taking lead on projects, as
Job Description
Who are we looking for?
A senior level Java-J2EEE lead to manage a critical project for one of the biggest clients in banking domain. The Individual should be passionate about technology, experienced in developing and managing cutting edge technology applications.
We are looking for people from the trading background
Technical Skills:
- An excellent tech Lead or application architect with strong experience in monolithic Java legacy applications, modern cloud-native
- Strong hands-on experience in Spring, Core Java specifically on multi-threading, concurrency, memory management process, and fair understanding on network communication & protocols.
- experience working in software development on low-latency and high performing systems
- Experienced to guide & mentor the offshore team members, validating application deliverables on regular basis
- Ability to work in a collaborative manner with peers across different time zones.
- Passionate about good design and code quality and have strong engineering practices
- Experience working on GCP will be preferred.
Process Skills:
- Experience in analyzing requirements and develop software as per project defined software process
- Develop and review design, code
- Develop and document architecture framework, technical standards, and application roadmap
- Guide development teams to comply with the architecture and development standards and ensure quality application is designed, developed, and delivered
- Must have excellent communication skills.
Behavioral Skills:
- Resolve technical issues of projects and Explore alternate designs
- Effectively collaborates and communicates with the stakeholders and ensure client satisfaction
- Mentor, Train and coach members of project groups to ensure effective knowledge management activity.
Certification:
- Ultimate sun Java and GCP Certified
- Owns team's output and E2E definition and execution of SDLC. Drives sprint planning, estimates & prioritizes tasks, Keeps key stakeholders updated on progress, milestones, and any potential slippages.
- Identifies pitfalls across codebases proactively. Writes model code that is looked up to. Understands internals of programming languages & runtimes. Creates common reusable components/libraries- Uses advanced data structures.
- Designs API contracts between large systems with end-to-end service design and active leadership towards long-term sustainability including versioning, complex migration plans, impact analysis across products.
- Owns NFRs and pushes the envelope on performance, scalability, and high availability with cognizance towards the cost of infra. Drives tech stack selection independently, mentors junior engineers. Evangelises of generic platform building across the organization.
- Troubleshoots unseen issues across codebases. Solves large end-to-end cross-cutting problems with elegant solutions with an eye on long-term sustainability.
- Partners with and influences product managers on “how”. Leads the pack on hiring and evangelizes steeper hiring standards towards building an A+ team. Represents company on external platforms/conferences.
Qualifications:
- Bachelor's Degree in Computer Science or similar discipline
- 7+ years relevant work experience in software engineering while leading teams.
- Proficiency in more than one modern programming language such as Python (preferred) associated tech stack to write maintainable, scalable, unit-tested code
- Experience in building complex software systems that have been successfully delivered
- Should be strong with System Design and Database designing
- Deep understanding of design patterns, optimizations, deployments with Strong object-oriented design skills
- Experience mentoring other software engineers.
- Experience with full life cycle development in any programming language
At Cityflo, we are solving the problem of commuting to the office which affects employees in big, populated Indian cities every day. Cityflo provides a bus experience like no other - we run premium AC buses for daily commuters. We’re changing the way urban Indians commute and enabling everyone to reclaim hours of their time every day. Before the imposed lockdown due to coronavirus, we were serving about 7500 commuters per day. We plan to scale to 5,00,000 per day in the next 4 years in a profitable and sustainable manner.
You can read more about our engineering and culture on our blog: https://blog.cityflo.com/tag/engineering/" target="_blank">https://blog.cityflo.com/tag/engineering/
Role & Requirements
- 2+ year experience in application development
- ability to write efficient SQL queries and design schemas for relational databases
- good knowledge of operating systems and networking concepts
- experience in using and understanding code from Open Source
- experience with implementing best software engineering practices like version control with git, code reviews, writing unit-tests, writing readable code
- experience with Python and Django is a plus.
- inclination towards researching new technologies and adapt them to solve challenges we face
We look for engineers who
- Are committed to their growth and learning
- care about working in and building a strong engineering culture
- want to take significant ownership and decision making power
- want to make an impact in the real world while working with a great team in a hyper-growth environment
- 0-3 application development experience in solution building on Blockchain technology.
- Solid understanding of and experience in blockchain / distributed ledger technologies familiarity with platforms, such as Ethereum and Hyperledger.
- Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus
- Security Architecture / Cryptography is a plus.
- Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus.
- Experience on development tools such as Hyperledger Fabric/Sawtooth,Geth , Composer, Solidity Remix Functional
- Basic understanding of Web applications architecture and protocols.









