
Key Responsibilities
- Develop and maintain Python-based applications.
- Design and optimize SQL queries and databases.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Write clean, maintainable, and efficient code.
- Troubleshoot and debug applications.
- Participate in code reviews and contribute to team knowledge sharing.
Qualifications and Required Skills
- Strong proficiency in Python programming.
- Experience with SQL and database management.
- Experience with web frameworks such as Django or Flask.
- Knowledge of front-end technologies like HTML, CSS, and JavaScript.
- Familiarity with version control systems like Git.
- Strong problem-solving skills and attention to detail.
- Excellent communication and teamwork skills.
Good to Have Skills
- Experience with cloud platforms like AWS or Azure.
- Knowledge of containerization technologies like Docker.
- Familiarity with continuous integration and continuous deployment (CI/CD) pipelines

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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Summary:
We are seeking a highly skilled Python Backend Developer with proven expertise in FastAPI to join our team as a full-time contractor for 12 months. The ideal candidate will have 5+ years of experience in backend development, a strong understanding of API design, and the ability to deliver scalable, secure solutions. Knowledge of front-end technologies is an added advantage. Immediate joiners are preferred. This role requires full-time commitment—please apply only if you are not engaged in other projects.
Job Type:
Full-Time Contractor (12 months)
Location:
Remote
Experience:
3+ years in backend development
Key Responsibilities:
- Design, develop, and maintain robust backend services using Python and FastAPI.
- Implement and manage Prisma ORM for database operations.
- Build scalable APIs and integrate with SQL databases and third-party services.
- Deploy and manage backend services using Azure Function Apps and Microsoft Azure Cloud.
- Collaborate with front-end developers and other team members to deliver high-quality web applications.
- Ensure application performance, security, and reliability.
- Participate in code reviews, testing, and deployment processes.
Required Skills:
- Expertise in Python backend development with strong experience in FastAPI.
- Solid understanding of RESTful API design and implementation.
- Proficiency in SQL databases and ORM tools (preferably Prisma)
- Hands-on experience with Microsoft Azure Cloud and Azure Function Apps.
- Familiarity with CI/CD pipelines and containerization (Docker).
- Knowledge of cloud architecture best practices.
Added Advantage:
- Front-end development knowledge (React, Angular, or similar frameworks).
- Exposure to AWS/GCP cloud platforms.
- Experience with NoSQL databases.
Eligibility:
- Minimum 3 years of professional experience in backend development.
- Available for full-time engagement.
- Please excuse if you are currently engaged in other projects—we require dedicated availability.
About the Role
We are seeking a highly skilled Tech Lead who can drive the development of high-performance, scalable products while contributing hands-on to coding, architecture, and system design. You will work closely with a small engineering team, guiding them in technology decisions, quality delivery, and best practices while also taking ownership of key modules yourself.
Key Responsibilities
- Lead end-to-end product development from design to deployment.
- Act as both a technical contributor and mentor within a small, agile team.
- Architect scalable, robust, and secure backend and frontend systems.
- Participate in and guide:
- System design & architecture decisions
- Algorithmic analysis and performance optimization
- Database modeling and API design
- Write clean, maintainable, high-quality code.
- Own deployment pipelines and ensure reliable production releases.
- Collaborate with cross-functional stakeholders to translate requirements into actionable technical plans.
- Conduct code reviews, enforce coding standards, and ensure engineering excellence.
- Troubleshoot and solve complex technical challenges in production environments.
Required Technical Skills
- Strong expertise in Node.js and/or Python.
- Hands-on experience with TypeScript and React.js for frontend development.
- Knowledge of Go (Golang) is a strong advantage.
- Deep understanding of:
- Data Structures & Algorithms
- System Design
- Distributed systems concepts
- Microservices architecture
- Experience with deployment using:
- Docker, Kubernetes, or similar orchestration tools
- CI/CD pipelines
- Cloud platforms (AWS / GCP / Azure)
- Strong understanding of databases (SQL and NoSQL).
Soft Skills
- Strong leadership and ability to guide a small development team.
- Clear communication with technical and non-technical stakeholders.
- Ownership mindset with focus on delivering quality, on time.
- Problem-solver with the ability to make quick and correct technical decisions.
Preferred Qualifications
- 4–10 years of experience in software development.
- Prior experience in a startup or fast-moving product environment.
- Experience deploying and managing real-world products at scale.
What We Offer
- Opportunity to build and influence real products end-to-end.
- A collaborative, high-ownership environment.
- Freedom to experiment and drive product and engineering decisions.
The key aspects of this role include:
• Design, build, and maintain scalable applications using Python.
• Contribute to the entire implementation process including driving the definition of improvements based on business need and architectural improvements.
• Act as a subject matter expert for Application Software developers and Engineers.
• Handle server-side code for a production platform and contribute to new features
To be the right fit, you'll need:
• More than 4+ years of experience as a software developer in Python, with knowledge of at least one Python web framework such as Django, Flask, etc.
• Good understanding of common design patterns and architecture principles to design reliable and Scalable applications
• Strong communication skills
• Knowledge of databases line NoSQL or MongoDB
• Good to have AWS and Docker or Web services
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS
- Solid understanding of Data structures and Algorithms.
- Exceptional coding skills in an Object-Oriented programming language (Golang/Python)
- Must have basic understanding of AWS (EC2, Lambda, Boto, CI/CD), Celery, RabbitMq and similar task queue management tools/libraries.
- Experience with web technologies Python, Linux, Apache, Solr, Memcache, Redis, grpc
- Experience with high performance services catering to millions of daily traffic is a plus
- Strong understanding of Python and Django.
- Good knowledge of various Python Libraries, APIs, and tool kits.
- Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3.
- Proficient understanding of code versioning tools such as Git.
- Understanding of the threading limitations of Python, and multi-process architecture
- Understanding of databases and MySQL
Responsibilities :
- Comply with coding standards and technical design.
- Adapts structured coding styles for easy review, testing, and maintainability of the code.
- Active participation in troubleshooting and debugging.
- Preparing technical documentation of code.
Job Description for Drools developer -
- Hands on experience in design and development in Drools rule engine (minimum 1.5 years) and Core Java
- Exceptional ability to communicate with both technical and non-technical people
- Expertise in object oriented programming
- Experience in Deploying and supporting core and advanced features
- Good exposure to SQL and/or Oracle/ MySQL,
- Candidate should be well verse with Agile processes
- Strong ability to work collaboratively across diverse groups of business and technical stakeholders is required.
Work as a member of a team responsible for problem resolutions requiring extensive analysis, troubleshooting to product development. You will apply your knowledge of building scalable, distributed applications to provide ideal solutions to solving our clients business problems by driving customer experience outcomes with enhanced technical capabilities. Essential Functions include, but are not limited to the following.
You will be expected to:
- Work closely with a team of highly technical engineers distributed geographically.
- Contribute to all phases in the software lifecycle requirements analysis, solution design, development, and delivery
- Build high quality, efficient & reusable code in server-side programming.
- Troubleshoot & debug applications/products
- Ensure assigned projects are developed in accordance with established engineering processes, adhering to scope, schedule constraints and agile project plans
- Guide/mentor the less experienced team members
- Participate in code reviews
- Document and test the features worked on by you or team
- Explore & Propose to incorporate cutting-edge technologies / plugins etc to improve applications
- In addition, position is responsible for a variety of complex Linux, SQL, networking and coding challenges.
Must Have Skills:
- Strong programming skills in C/C++, Knowledge of PHP would be advantageous.
- Experience in Networking software development and Domain Knowledge
- Experience working with Linux
- Good Understanding of Databases (MySQL) and proficiency in SQL Queries.
Good to Have Skills:
- Knowledge of RESTful APIs
- Exposure to DevOPS practices, Continuous Integration (CI/CD), Containers (Docker).
- Experience with Spark Structured Streaming API, MySQL performance optimization, Linux Kernel experience
- Exposure to Test Driven Development
Role- Software Development Engineer-2
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 http://www.amazon.in">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.
Role- Software Development Engineer-2
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.
Locus is a global decision- making platform in the supply chain that uses deep learning and proprietary algorithms to provide route optimization, real-time tracking, insights and analytics, beat optimization, efficient warehouse management, vehicle allocation and utilization, intuitive 3D packing and measurement of packages. Locus automates human decisions required to transport a package or a person, between any two points on earth, delivering gains along efficiency, consistency, and transparency in operations.
Locus, which has achieved a peak of 1 million orders processed in a day (200,000 orders an hour) and is trained & tested on over 100 million+ order deliveries, works in 75 cities across the globe. Locus works with several large-scale market leaders like Urban Ladder, Tata Group of Companies, Droplet, Licious, Rollick, Lenskart, other global FMCG, pharma, e-commerce, 3PL and logistics conglomerates.
Locus is backed by some of the biggest names in the market and recently raised $22 MN in Series B funding and also $4 Mn in a pre-Series B round. Earlier, In 2016, Locus raised $2.75 Mn (INR 18.3 Cr) in a Series A funding.
Locus was started by Nishith Rastogi and Geet Garg, two ex-Amazon engineers on a mission to democratize logistics intelligence for businesses across industries. Nishith was profiled by Forbes Asia in their ’30 Under 30’ 2018 list. Geet, on the other hand, holds a dual degree (BTech and MTech) in Computer Science and Engineering from the Indian Institute of Technology. Our team constitutes of engineers from Indian Institute of Technology and Birla Institute of Technology & Science- Pilani, and Data Scientists with PhDs from Carnegie Mellon University and Tata Institute of Fundamental Research. Our multifaced product and business team is led by senior members from Barclays, Google & Goldman Sachs with immense operational execution experience.
Job Description
- Design & implement backend APIs at Locus.sh
- Mentor junior developers technically.
- Actively work to reduce tech debt in the Locus backend
- Work towards more stability & scalability of the backend
- Tech stack - Java, AWS, Aurora etc.
Eligibility
- 4-8 years of product company experience
- OOP implementation experience. Programming language does not matter, We use Java internally but have hired folks from non Java background.
- Hands on experience in SQL, Dynamo DB, Postgres etc preferred.
- Prior experience building REST APIs
- Advanced understanding of AWS stack
- Prior knowledge of solving problems at scale.
Perks:
- Healthy catered meals at office
- You decide your own Work From Home (WFH) and Out Of Office (OOO)
- Pet-friendly - bring your pets to the office any day. Locus family already has a Rottweiler and a Beagle









