Python Fullstack developer at Wissen Technology · Bengaluru (Bangalore) · 5 - 7 years · Profitable · Posted 23 Sep 2025

Position Summary: Senior Software Engineer (Full Stack) We are seeking a highly skilled Senior Software Engineer to execute our strategy preferably experienced in Financial Services/Procurement domain, to build a modern SaaS platform using latest technologies like ReactJS, Angular, Django, Python with Postgres and AWS as the platform. Athena, Lambda, Python, Spark and PowerBI. As a Full Stack Engineer, you’ll be responsible for designing, developing, and maintaining key features of our cloud-based SaaS product. You’ll work across the stack — from building rich client-side applications in ReactJS to crafting performant and secure APIs in Django. You will also play a key role in architectural decisions, DevOps integration, and driving engineering best practices across the team.
Technical Skills: Must Have: Expert – ReactJS, Django, Python, Shell Script, AWS, S3, Lambda, Postgres Significant work Experience – Jenkins, Power BI
Responsibilities:
• Design and develop end-to-end web applications using ReactJS (frontend) and Python/Django (backend)
• Build and maintain RESTful APIs and integrate third-party services
• Work with PostgreSQL to model data and write efficient queries
• Implement scalable, secure, and maintainable backend services on AWS
• Collaborate with product managers, designers, and fellow engineers to deliver new features
• Write unit, integration, and end-to-end tests to ensure code quality and reliability
• Conduct code reviews, debug issues, and optimize performance across the stack
• Contribute to DevOps workflows including CI/CD pipelines, containerization, and monitoring Internal Use Only Qualifications/Experience:
Must have - 5–7 years of full stack development experience, preferably in a SaaS or product-first environment
- Strong proficiency with JavaScript, ReactJS, and component-based architecture
- Hands-on experience with Python and the Django web framework
- Solid understanding of PostgreSQL (or similar relational databases)
- Practical knowledge of AWS services (EC2, S3, RDS, Lambda, etc.)
- Familiarity with Git, CI/CD pipelines, Docker, and Linux-based environments
- Clear communication skills and a collaborative mindset
Good to have
- Experience with performance tuning in Django or PostgreSQL - Exposure to Infrastructure-as-Code (e.g., Terraform, CloudFormation) Nice to have
- Understanding of frontend testing tools (Jest, Cypress) and backend testing strategies - Knowledge of security best practices for SaaS apps
Location: Bangalore

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 Summary
We are looking for an experienced Senior Python Full Stack Developer with 5+ years of hands-on experience in Python, Django, Flask, and React.js. The ideal candidate should have strong expertise in developing scalable web applications, building RESTful APIs, and working across both backend and frontend technologies.
The candidate will be responsible for designing, developing, testing, and maintaining high-quality applications while collaborating closely with product, design, QA, and other engineering teams.
Key Responsibilities
- Design, develop, and maintain scalable web applications using Python, Django, and Flask.
- Develop responsive and user-friendly frontend applications using React.js.
- Build and integrate RESTful APIs and third-party services.
- Design efficient database structures and write optimized queries.
- Work with databases such as PostgreSQL, MySQL, or MongoDB.
- Write clean, reusable, maintainable, and well-documented code.
- Perform code reviews and ensure adherence to development best practices.
- Identify and resolve application performance and production issues.
- Collaborate with cross-functional teams to understand requirements and deliver solutions.
- Participate in architecture and technical design discussions.
- Develop unit and integration tests to ensure application reliability.
- Troubleshoot, debug, and optimize existing applications.
- Follow Agile/Scrum development practices and contribute to sprint planning and estimation.
Required Skills
- 5+ years of professional experience in software development.
- Strong proficiency in Python.
- Hands-on experience with Django and Flask.
- Strong experience with React.js and modern frontend development.
- Good understanding of HTML, CSS, JavaScript, and TypeScript.
- Strong experience in developing and consuming REST APIs.
- Good knowledge of SQL and relational databases.
- Experience with Git/GitHub/GitLab.
- Strong understanding of object-oriented programming and software design principles.
- Experience with debugging, performance optimization, and application security.
- Good understanding of Agile/Scrum methodologies.
Good to Have
- Experience with AWS, Azure, or GCP.
- Knowledge of Docker and Kubernetes.
- Experience with CI/CD pipelines.
- Familiarity with Redis, Celery, or message queues.
- Experience working with microservices architecture.
- Knowledge of automated testing frameworks such as PyTest.
- Experience working in cloud-based production environments.
Soft Skills
- Strong analytical and problem-solving abilities.
- Excellent communication and collaboration skills.
- Ability to work independently and take ownership of assigned tasks.
- Ability to mentor junior developers and contribute to technical decisions.
- Strong attention to quality and detail.
We are looking for a skilled Full Stack Developer with 3+ years of experience in Python and React.js to join our engineering team. The ideal candidate should have strong experience building scalable web applications, developing backend APIs, and creating responsive frontend interfaces.
Key Responsibilities
- Develop and maintain full-stack web applications using Python and React.js.
- Build scalable and secure RESTful APIs using Django, Flask, or FastAPI.
- Develop responsive and user-friendly interfaces using React.js.
- Integrate frontend applications with backend APIs and third-party services.
- Work with databases such as PostgreSQL, MySQL, or MongoDB.
- Write clean, reusable, and maintainable code.
- Troubleshoot, debug, and optimize application performance.
- Participate in code reviews and follow software development best practices.
- Collaborate with UI/UX designers, QA engineers, DevOps, and other developers.
- Write unit and integration tests to ensure application reliability.
- Use Git/GitHub/GitLab for version control.
- Contribute to system design, documentation, deployment, and continuous improvement.
Required Skills
- 3+ years of professional experience in Full Stack Development
- Strong hands-on experience with Python
- Strong experience with React.js
- Experience with Django / Flask / FastAPI
- Good understanding of JavaScript, HTML5, and CSS3
- Strong knowledge of REST APIs
- Experience with PostgreSQL / MySQL / MongoDB
- Good understanding of Git and version control
- Strong knowledge of OOP, data structures, and software development concepts
- Experience with debugging and performance optimization
- Good problem-solving and communication skills
Good to Have
- Experience with TypeScript
- Knowledge of Next.js
- Experience with AWS / Azure / GCP
- Knowledge of Docker and Kubernetes
- Understanding of CI/CD pipelines
- Experience with microservices architecture
- Exposure to AI/ML or GenAI applications is a plus
Education
Bachelor’s degree in Computer Science, IT, Engineering, or a related field.
Role: Full Stack Engineer
Location: Hyderabad/Mumbai/Bangalore/Gurgaon
Required Experience: 4-7 years
Role Summary:
We are looking for Software Engineers with deep experience in building highly scalable and reliable enterprise applications. We are looking for engineers who have experience building cloud based/cloud native solutions from scratch. This includes demonstrable expertise in an enterprise friendly backend framework. We expect the engineer to work in a team consisting of Project Managers, Designers, Data Scientists and Software Architects. This is an exciting opportunity to work in a fast paced and innovative environment along with a group of world class and entrepreneurial professionals.
Responsibilities:
• Design and develop user-friendly web interfaces using HTML, CSS, and JavaScript.
• Utilize modern frontend frameworks and libraries such as React, Angular, or Vue.js to build dynamic and responsive web applications.
• Develop and maintain server-side logic using programming languages such as Java, Python, Ruby, Node.js, or PHP.
• Build and manage APIs for seamless communication between the frontend and backend systems.
• Integrate third-party services and APIs to enhance application functionality.
• Implement CI/CD pipelines to automate testing, integration, and deployment processes.
• Monitor and optimize the performance of web applications to ensure a high-quality user experience.
• Stay up-to-date with emerging technologies and industry trends to continuously improve development processes and application performance.
Qualifications:
• Bachelors/Masters in Computer Science or related subjects or hands-on experience demonstrating working understanding of software applications.
• Knowledge of building applications that can be deployed in a cloud environment or are cloud native applications.
• Strong expertise in building backend applications using Java/C#/Python with demonstrable experience in using frameworks such as Spring/Vertx/.Net/FastAPI.
• Deep understanding of enterprise design patterns, API development and integration and Test-Driven Development (TDD)
• Working knowledge in building applications that leverage databases such as PostgreSQL, MySQL, MongoDB, Neo4J or storage technologies such as AWS S3, Azure Blob Storage.
• Hands-on experience in building enterprise applications adhering to their needs of security and reliability.
• Hands-on experience building applications using one of the major cloud providers, preferably GCP.
• Working knowledge of CI/CD tools for application integration and deployment.
• Working knowledge of using reliability tools to monitor the performance of the application.
We’re looking for a hands-on builder who can thrive in a fast-paced startup environment. You’ll own features end-to-end, from designing architecture to writing clean, reusable code, testing, deploying, and iterating fast.
What you’ll do
- Build and scale web + mobile applications using Python (Django) and React Native/React.
- Design, develop, and deploy cloud-native solutions using AWS services.
- Work with both SQL and NoSQL databases (PostgreSQL, DynamoDB).
- Ensure applications are secure, scalable, and performance-optimized.
- Collaborate closely with product, design, and business teams to ship features at lightning speed.
- Take ownership of problems - from brainstorming and architecture to debugging in production.
- Bring startup energy: move fast, learn fast, and don’t be afraid to get your hands dirty.
What we’re looking for
- 1-3 years of experience in full-stack development.
- Strong experience in Python (Django).
- Proficiency in React Native/React, with solid knowledge of JavaScript.
- Experience with AWS services (serverless, EC2, S3, etc.).
- Experience with docker or kubernetes.
- Hands-on with databases: PostgreSQL, DynamoDB.
- Strong understanding of data structures, design patterns, and microservices architecture.
- Proficiency with Git and version control workflows.
- A product-first mindset, balancing code quality with speed of execution.
- Great communication skills, detail-oriented, and a true team player.
- Bonus - If you are an AI native developer and try to solve problems using AI
About the Role
We are looking for an experienced Python Full-Stack Developer with 5+ years of experience to develop and maintain scalable web applications and SaaS products. The role involves working with Python, FastAPI/Flask/Django, ReactJS, REST APIs, databases, AWS, and Docker, while focusing on performance, scalability, and reliable solutions. The ideal candidate should have strong problem-solving skills and the ability to collaborate effectively with cross-functional teams.
Requirements
- 5+ years of hands-on experience in Python Full-Stack Development.
- Strong experience with Python, FastAPI/Flask/Django, ReactJS, JavaScript, HTML5, CSS3
- Good knowledge of REST APIs, Celery, and Redis.
- Experience with MySQL/PostgreSQL and MongoDB.
- Hands-on experience with AWS (EC2, Secrets Manager, ECR) and Docker.
- Proficiency in Git, NumPy, Pandas, and Matplotlib.
- Strong understanding of Data Structures, Algorithms, debugging, and performance optimisation.
- Knowledge of Machine Learning is an added advantage.
- Strong analytical, problem-solving, and communication skills.
Key Responsibilities
- Develop and maintain scalable full-stack applications using Python, FastAPI/Flask/Django, ReactJS, and JavaScript.
- Build and integrate REST APIs, responsive UI components, and third-party services.
- Implement asynchronous processing using Celery and Redis.
- Work with SQL and NoSQL databases including MySQL, PostgreSQL, MongoDB, and Redis.
- Develop data-driven solutions using NumPy, Pandas, and Matplotlib.
- Deploy and manage applications using AWS (EC2, Secrets Manager, ECR) and Docker.
- Use Git for version control and collaborative development.
- Debug, optimize, and ensure application performance, scalability, and reliability.
- Collaborate with cross-functional teams to deliver high-quality solutions and contribute to technical improvements.
Good to Have
- Experience working on SaaS products or large-scale web applications.
- Experience with AWS deployment and CI/CD pipelines.
- Knowledge of cloud architecture and microservices.
- Experience with machine learning or data-intensive applications.
- Experience with frontend state-management solutions such as Redux or Context API.
- Experience mentoring junior developers or leading technical initiatives.
Full-Stack Engineer (Backend Heavy)
Experience: 4–6 Years | Function: Engineering — Product | Location: On-site
About Us
We’re building the next generation of AI-powered business software, and we’re looking for people who want to shape that future with us. With Lumen, we’re reimagining how users interact with CRM — moving beyond screens, menus and dashboards to an intelligent interface where users can simply ask AI to take actions, retrieve knowledge, generate insights and get work done. With Agent Studio, we’re enabling businesses to build, test and deploy their own AI agents for real-world workflows. And with Invorto, we’re bringing AI to voice, allowing businesses to create intelligent voice agents tailored to their customer and operational use cases.
What makes this especially exciting is the stage and scale of the opportunity. You’ll get to work on genuinely hard problems across LLMs, agents, reasoning, orchestration, voice AI, evaluation, reliability and enterprise security — not as isolated experiments, but as products used in real business workflows. You’ll have the opportunity to build zero-to-one, own meaningful parts of the product end-to-end, work closely with customers, experiment rapidly, and see your work reach production at scale.
Why join now? Because the playbook for enterprise AI is still being written. You won’t just be implementing someone else’s roadmap — you’ll help define the product, architecture and experiences that become that playbook. Expect high ownership, fast iteration, hard technical and product problems, direct customer impact, and the chance to build AI systems that have to work reliably in the real world — not just in a demo.
About the Role
We are looking for a Full-Stack Engineer with a strong backend bias to help build end-to-end product experiences across Lumen and Agent Studio. You will own features from database and API design through to the front-end experience, working closely with product and design to ship AI-powered experiences that real business users depend on every day.
What You’ll Do
Design and build backend services and APIs in Python that power core product and AI-agent features.
Build front-end interfaces and experiences that let users interact naturally with AI agents, insights and CRM workflows.
Own features end-to-end — from data modeling and backend logic to UI implementation, testing and release.
Work with product managers and designers to translate requirements into well-architected, scalable systems.
Integrate with LLM-based and agentic backend systems built by the AI/ML engineering team.
Optimize application performance, reliability and code quality across the stack.
Engage directly with customers and customer success teams to understand workflows, triage issues and inform roadmap decisions.
What We’re Looking For
4–6 years of professional full-stack engineering experience, with a clear backend-heavy skill set in Python.
Strong experience designing and building REST/GraphQL APIs, data models and scalable backend services.
Working proficiency with modern front-end frameworks (e.g., React) to build and integrate user-facing features.
Experience with relational/NoSQL databases, caching and cloud infrastructure.
Ability to move fast in a zero-to-one environment while maintaining code quality and system reliability.
Strong communication skills — this is a customer-facing role, and you will be expected to clearly articulate technical concepts, decisions and trade-offs to both technical and non-technical stakeholders, including customers.
Good to Have
Experience building features on top of LLM or AI-agent backends.
Prior experience in CRM, SaaS or enterprise business applications.
Exposure to real-time or voice-based product interfaces.
Hiring for Python Full Stack Lead
Exp : 6 - 10 yrs
Edu : BE/B.Tech 60 - 65 %
Work Location Pune WFO
Skills : 4+ years of experience in Python
2+ years of experience in React Js
Rest Framework
Lead Exp must
Job Overview
We are hiring a Senior Full-Stack Engineer to design and scale high-performance web applications. You will drive technical decisions using React, Node.js, and TypeScript while building event-driven cloud architectures.
Key Responsibilities
- Develop scalable frontend features using React and robust backend APIs with Node.js/TypeScript.
- Architect and deploy cloud-native microservices on AWS.
- Implement asynchronous communication using messaging tools like Kafka, RabbitMQ, SQS, or SNS.
- Optimize SQL/NoSQL databases and maintain automated CI/CD pipelines.
- Mentor junior developers and lead code reviews.
Required Skills
- 6+ years in full-stack software development.
- Mastery of TypeScript, React.js, and Node.js.
- Hands-on experience with AWS and modern messaging queues.
- Strong problem-solving and communication skills.
Location: Hyderabad
* Design, develop, and maintain responsive websites and web applications.
* Build reusable frontend components using React.js.
* Develop scalable backend APIs and services using Node.js.
* Integrate third-party services and payment gateways such as Stripe.
* Build RESTful APIs and integrate with modern databases.
* Optimize applications for maximum speed, scalability, and SEO.
* Collaborate with designers to translate Figma/UI designs into pixel-perfect interfaces.
* Implement authentication, authorization, and security best practices.
* Debug production issues and improve application performance.
* Participate in code reviews and mentor junior developers.
* Work within Agile/Scrum development processes.
Role & Responsibilities
We are currently seeking a Senior Engineer to join our Financial Services team, contributing to the design and development of scalable system.
The Ideal Candidate Will Be Able To-
- Take ownership of delivering performant, scalable and high quality cloud based software, both frontend and backend side.
- Mentor team members to develop in line with product requirements.
- Collaborate with Senior Architect for design and technology choices for product development roadmap.
- Do code reviews.
Ideal Candidate
- Strong Software Engineer fullstack profile using NodeJS, Python, and React
- Mandatory (Experience) - Must have 6+ YOE in Software Development using Python and NodeJS (For backend) & React (For frontend)
- Mandatory (Core Skills 1): Must have strong experience in working on Typescript
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- Mandatory (Company) - Product Companies Only
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- Mandatory (Note) : This role is a hybrid role (2 days WFO)
- Preferred (Experience): Experience in Fin-Tech, Payment, POS and Retail products is highly preferred
- Preferred (Mentoring): Experience in mentoring, coaching the team.






