
JD:
As a Staff Software Engineer, you will be responsible for the design, implementation and maintenance of software modules owned by a team. You will guide and mentor junior team members by reviewing their code and designs to ensure that they are writing well designed and high quality code. This role requires excellent communication skills as you will need to collaborate across teams.
Key Skills:
- 3 to 6 years of experience
- Extensive experience on C/C++/Python
- Experience on OS - Unix/Linux and Windows
- Hands on experience in Networking and Multi-threading
Desirable Skills:
- Experience in Cloud Technologies, system programming is a plus
Roles and responsibilities:
- Play key role in design/development of security product.
- Responsible for the complete software development cycle.
- Gathering & understanding requirements.
- Design, development & implementation independently.
- Responsible for ensuring timely and quality delivery.
- Will be able to work in end to end features.
Qualification:
- B.Tech / B.E / M.E./ M.Tech (Computer Science) or equivalent.

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Job Description: Python Backend Developer
Experience: 7-12 years
Job Type: Full-time
Job Overview:
Wissen Technology is looking for a highly experienced Python Backend Developer with 7-12 years of experience to join our team. The ideal candidate will have deep expertise in backend development using Python, with a strong focus on Django and Flask frameworks.
Key Responsibilities:
- Develop and maintain robust backend services and APIs using Python, Django, and Flask.
- Design scalable and efficient database schemas, integrating with both relational and NoSQL databases.
- Collaborate with front-end developers and other team members to establish objectives and design functional, cohesive code.
- Optimize applications for maximum speed and scalability.
- Ensure security and data protection protocols are implemented effectively.
- Troubleshoot and debug applications to ensure a seamless user experience.
- Participate in code reviews, testing, and quality assurance processes.
Required Skills:
Python: Extensive experience in backend development using Python.
Django & Flask: Proficiency in Django and Flask frameworks.
Database Management: Strong knowledge of databases such as PostgreSQL, MySQL, and MongoDB.
API Development: Expertise in building and maintaining RESTful APIs.
Security: Understanding of security best practices and data protection measures.
Version Control: Experience with Git for collaboration and version control.
Problem-Solving: Strong analytical skills with a focus on writing clean, efficient code.
Communication: Excellent communication and teamwork skills.
Preferred Qualifications:
- Experience with cloud services like AWS, Azure, or GCP.
- Familiarity with Docker and containerization.
- Knowledge of CI/CD practices.
Why Join Wissen Technology?
- Opportunity to work on innovative projects with a cutting-edge technology stack.
- Competitive compensation and benefits package.
- A supportive environment that fosters professional growth and learning.
- Proficient experience of minimum 3 years into C++ & experience using MFC library.
- Good experience into C# programming.
- Working experience into COM.
- Good Communication skills.
Card91 is simplifying business payments by providing a plug and play issuance infrastructure
to businesses for domestic and cross-border payments. Our full stack platform enables
businesses to gain control and visibility into their payment flows, controlling the entire payment
lifecycle from onboarding, to issuance, to transaction and data reconciliation. The platform
aims to provide holistic solutions around payment issuance and distribution management. Our
deep focus in payments will help us in bringing new issuance formats as well as technologies
to businesses.
The company has been founded by seasoned technology entrepreneurs who have founded
successful companies like Myntra, Mastiff Technologies earlier. Headquartered in Bangalore,
with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space
in the issuer-processor segment.
Position: Python Developer
We are building our core team which will be responsible for a highly scalable, always available
microservices based backend for payment processing. The developer will be involved with the
design, implementation, and execution from day one and build a robust, secure, and scalable
payment processing engine.
Roles & Responsibilities
● Individual Contributors talking full ownership of the micro services
● Design and Implement the micro services from scratch
● Be creative and always try to evaluate new strategies to execute faster
● Team player and always eager to teach new team members about the code,
● structure and design
● Not afraid of bringing new designs (even languages) which will make the system
execute faster
Experience and Qualifications
● Having 2 - 5 years of experience
● Degree from a premier institute like IIT/NIT/BITS is desirable
● A strong expertise in Python framework (like Django, Flask or Pyramid)
● Experience in creating APIs with design standards, patterns and best-practices
● Knowledge of object-relational mapping (ORM)
● GoLang experience is a big plus
● Experience building web services in REST
● knowledge and hands-on experience in API security standards and implementation
(Oauth, OpenId)
● Experience in developing highly scalable and reliable web applications, including
integration with internal and external systems.
● Experience in databases like MySQL and NoSQL db like Cassandra, etc.
● Experience with Cloud computing AWS & Microservices architecture
● Exposure to front end technologies like VueJS, ReactJS etc is an advantage
● Docker & Kubernetes experience is a big plus
● Previous experience of Fintech company is an added advantage
What’s on offer
● Vibrant, fun and rewarding culture that nurtures and promotes excellence
● Opportunities to learn and interact with payment industry leaders
● Competitive remuneration, group health insurance & PF
● Other office perks of being part of an early-stage startup
Location: HSR Layout, Bangalore
We are hiring for Backend Developer for Pune Kharadi.
Experience: Min 2+ Years with Python/Django.
Must have Skills:
- Excellent knowledge of Python/Django code structure.
- Good understanding of Design patterns and OOPS concepts.
- Good understanding of ORM.
- Good understanding of PostgreSQL.
- Better to have code optimization techniques.
- Implementing integrated technology-based solutions and identifying integration opportunities for a similar package of services.
- Excellent knowledge of Linux, Nginx.
- Excellent knowledge of celery, RabbitMQ
- Excellent Knowledge of Git.
Additional skills:
- Knowledge in Docker and Kubernetes is a plus.
- Good to have some knowledge of Angular and some frontend technologies like Html, CSS, Java script.
- Should take responsibility and ownership of delivery.
Education & Qualifications:
- Must have a Graduate/Master’s degree in any vertical or global equivalent from a reputed university.
- Certification in Python/data science would be added advantage.
Software Development Engineer
Bengaluru/Hyderabad/Gurgaon/Chennai
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.
About Amazon.com
“Many of the problems we face have no textbook solution, and so we-happily-invent new ones.” – Jeff Bezos
Amazon.com – a place where builders can build. We hire the world's brightest minds and offer them an environment in which they can invent and innovate to improve the experience for our customers. A Fortune 100 company based in Seattle, Washington, Amazon is the global leader in e-commerce. Amazon offers everything from books and electronics to apparel and diamond jewelry. We operate sites in Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Netherlands, Spain, United Kingdom and United States, and maintain dozens of fulfillment centers around the world which encompass more than 26 million square feet.
Technological innovation drives the growth of Amazon, offering our customers more selection, convenient shopping, and low prices. Amazon Web Services provides developers and small to large businesses access to the horizontally scalable state of the art cloud infrastructure like S3, EC2, AMI, CloudFront and SimpleDB, that powers Amazon.com. Developers can build any type of business on Amazon Web Services and scale their application with growing business needs.
We want you to help share and shape our mission to be Earth's most customer-centric company. Amazon's evolution from Web site to e-commerce partner to development platform is driven by the spirit of invention that is part of our DNA. We do this every day by inventing elegant and simple solutions to complex technical and business problems. We're making history and the good news is that we've only just begun.
About Amazon India
Amazon teams in India work on complex business challenges to innovate and create efficient solutions that enable various Amazon businesses, including Amazon websites across the world as well as support Payments, Transportation, and Digital products and services like the Kindle family of tablets, e-readers and the store. We are proud to have some of the finest talent and strong leaders with proven experience working to make Amazon the Earth’s most customer-centric company.
We made our foray into the Indian market with the launch of Junglee.com, enabling retailers in India to advertise their products to millions of Indian shoppers and drive targeted traffic to their stores. In June 2013, we launched http://www.amazon.in">www.amazon.in for shoppers in India. With www.amazon.in, we endeavor to give customers more of what they want – low prices, vast selection, fast and reliable delivery, and a trusted and convenient online shopping experience. In just over a year of launching our India operations, we have expanded our offering to over 18 million products across 36 departments and 100s of categories! Our philosophy of working backwards from the customers is what drives our growth and success.
We will continue to strive to become a trusted and meaningful sales and logistics channel for retailers of all sizes across India and a fast, reliable and convenient online shopping destination for consumers. For us, it is always “Day 1” and we are committed to aggressively invest over the long-term and relentlessly focus on raising the bar for customer experience in India.
Amazon India offers opportunities where you can dive right in, work with smart people on challenging problems and make an impact that contributes to the lives of millions. Join us so you can - Work Hard, Have Fun and Make History.
Responsibilities:
- Writing reusable, testable, and efficient
- Design and implementation of low-latency, high-availability, and performant
- Integration of user-facing elements developed by front-end developers with server side
- Implementation of security and data
- Integration of data storage solutions may include databases, key-value stores, blob stores, etc. Experience administering innovation with methodologies such as design
- Experience working on Agile Scrum and DevOps aligned delivery
- Interest and ability to learn other coding languages as
- Strong communication skills and great product
- Proficient communication skills verbal and
- Understanding of accessibility and security compliance depending on the specific
- Knowledge of user authentication and authorization between multiple systems, servers, and environments.
- Understanding of fundamental design principles behind a scalable
- Familiarity with event-driven programming in
- Understanding of the differences between multiple delivery platforms, such as mobile vs desktop, and optimizing output to match the specific
- Able to create database schemas that represent and support business
- Strong unit test and debugging
Skills:
- Expert in Python, with knowledge of at least one Python web framework such as Django, Flask, etc depending on your technology
- Familiarity with some ORM (Object Relational Mapper)
- Able to integrate multiple data sources and databases into one
- Understanding of the threading limitations of Python, and multi-process
- Good understanding of server-side templating languages such as Jinja 2, Mako, etc depending on your technology
- Basic understanding of front-end technologies, such as JavaScript, HTML5, and
- Proficient understanding of code versioning tools such as Git, Mercurial or

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Total of 3-5 years of experience building cutting-edge products.
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Must have a degree in Computer Science or a related field. Strong understanding of object-oriented programming, concurrency, and fundamentals of computer science.
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Technically Hands-on, prior experience with scalable Architecture.
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Bring 3-5 years of software engineering and product delivery experience, with a strong background in algorithms.
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Excellent command over Data Structures and Algorithm Proficiency in implementation of algorithms and use of advanced data structures to solve problems in computing
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Exceptional coding skills in an Object-Oriented programming language (Python preferred with Django framework).
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Strong problem-solving and analytical skills.
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Experience with web technologies Java/Python, Linux, Apache, MySQL, solr, memcache, redis.
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Experience in architecting & building real-time, large-scale e-commerce applications.
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Experience with high-performance websites catering to millions of daily traffic is a plus.
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Java/ Python, MySQL, Redis, ElasticSearch, Problem Solving, Scalability, Design Patterns, Distributed System
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Develop complex software products that include scale, algorithmic complexity, and a huge amount of data.
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Build cutting-edge scalable systems by writing simple and efficient code.
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Code, develop, design, and architect features related to the existing application. We expect you to own modules end to end and take pride in the work products you ship
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Contribute to all aspects of an agile software development lifecycle including design, architecture, development, documentation, testing, and operations.
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Design, implement, and maintain highly scalable, multi-tier, distributed server software applications
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Deliver across the entire app life cycle, design, build, deploy, test, release to app stores, and support
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Working directly with developers and product managers to conceptualize, build, test, and release products
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Take responsibility for performance and stability for all server functions
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Continuously discover, evaluate, and implement new technologies to maximize development efficiency

