
Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a senior software engineer, you will work on our python based ORM and applications that scales to handle millions of transactions every hour. This is mission critical software and your primary focus will be building robust and scalable solutions that are easy to maintain.
In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product are important.
What You’ll Do:
- Own definition and implementation of API interfaces (REST and GraphQL). We take pride in our 100% open API with over 600 endpoints.
- Implement simple solutions to complex business logic that enables our merchants to manage financials, orders and shipments across millions of transactions.
- Build reusable components and packages for future use.
- Translate specs and user stories into reviewable, test covered patches.
- Peer review code and refactor existing code.
- Integrate with our eCommerce partners (Shopify, BigCommerce, Amazon), shipping partners (UPS, USPS, FedEx, DHL) and EDI.
- Manage Kubernetes and Docker based global deployment of our infrastructure.
Requirements
We’re Looking for Someone With:
- Experience working with ORMs like SQLAlchemy or Django (2-3 years)
- Experience with SQL and databases (Postgres preferred)
- Experience in developing large server side applications and microservices
- Ability to create high quality code
- Experience with python testing tools (pytest) and test automation
- Familiarity with code versioning tools like GIT
- Strong sense of ownership and leadership quality
- Experienced in the tools of our web stack- Python, Celery, Postgres, Redis, RabbitMQ
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Experience with ReactJS, Google Cloud, Heroku
- Cloud deployment and scaling experience

About Fulfil.IO
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Company Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Work Location - Senior Backend Developer – Java (with Python Exposure)- Mumbai
Experience - 4 to 10 years
Kindly revert over mail if you are interested.
Java Developer – Job Description
We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.
Key Responsibilities
- Design and develop robust backend services and APIs primarily using Java (Spring Boot)
- Contribute to Python-based components where needed for automation, scripting, or lightweight services
- Build, integrate, and optimize RESTful APIs and microservices
- Work with relational and NoSQL databases
- Write unit and integration tests (JUnit, PyTest)
- Collaborate closely with DevOps, QA, and product teams
- Participate in architecture reviews and design discussions
- Help maintain code quality, organization, and automation
Required Skills & Qualifications
- 4 to 10 years of hands-on Java development experience
- Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
- At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
- Familiarity with Python frameworks like Flask or FastAPI is a plus
- Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
- Good understanding of OOP, design patterns, and software engineering best practices
- Familiarity with Docker, Git, and CI/CD pipelines
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 optimisation 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
We are seeking a talented and motivated Backend Developer to join our dynamic team. As a senior Backend Developer, you will play a crucial role in enhancing and expanding our AI productivity tool, working on the intersection of natural language understanding (NLU), event-condition-action (ECA) frameworks.
Key Responsibilities:
- Collaborate with cross-functional teams to design and implement advanced features for our AI productivity tool.
- Innovate and propose creative solutions to enhance the functionality and user experience of the platform.
- Develop back-end components of the AI productivity tool, ensuring performance and scalability.
- Design and implement robust backend services and APIs using Python- Django.
Requirements:
- Bachelor's/Master's degree in Computer Science or a related field.
- Proven experience (3-4 years) as a Software Development Engineer, with a focus on Python- Django
- Strong problem-solving skills and the ability to think creatively.
- Ability to take up different tech stacks.
- Mathematical experience preferred.
- Proficiency in Backend Technologies as well as a basic understanding of Frontend technologies.
Nice-to-Haves:
- Experience with cloud platforms and services.
- Experience with Frontend Technologies.
- Track record of contributing to open-source projects.
- Passion for staying updated on the latest trends in AI and technology.
grow online businesses across multiple channels and global markets. They use data-driven tools to optimize how products are advertised and listed across marketplaces – and handle all associated shipping, logistics, taxes, and compliance.
Their business model is built on aligned incentives with no initial costs. They only makes
money if and when customers’ products sell.
They are expanding their Engineering team to India and building a stellar and diverse team
composed of owners. They are looking for a backend engineer with a demonstrated track record of developing and maintaining production services, innovative thinking, and technical excellence.
As a backend engineer, you will be responsible for building out the service layer that powers our frontend applications. You should have a solid understanding of software development lifecycle and software design principles. This is a great opportunity if you are looking for a huge impact at a small start-up with immense growth potential.
What you will do?
Create technical plans of projects assigned to you.
Come up with well-structured solutions to ambiguous problems and implement them.
Ship high-quality, well-tested, secure, and maintainable backend code.
Provide technical direction on our various products and upcoming projects.
Champion reliability and quality by using best practices in software engineering and modular
design.
Ensure all components are scalable, maintainable, and have in-built metrics instrumentation
and monitoring
Deliver an exceptional user experience to our customers. Put the customer first and have
quality in mind.
Own the full release cycle from development to deployment.
What you will need?
3+ Years of experience as a software engineer working on backend applications.
Advanced knowledge of Python (preferably, the Django framework) and relational databases.
Experience with agile, test-driven development, continuous integration, and automated testing.
Experience with building, modifying, and extending API endpoints (REST or GraphQL) for
data retrieval and persistence.
Experience with the full software development life cycle, including requirements collection,
design, implementation, testing, and operational support.
Excellent verbal and written communication, teamwork, decision making and influencing
skills.
Experience with scrum or other agile software development methodology.
Hustle. Thrives in an evolving, fast paced, ambiguous work environment.
Bonus if you have
Experience working in the eCommerce domain.
Experience with AWS technologies like Elastic Beanstalk, Amplify, etc.
Backend - Software Development Engineer III
Experience - 7+ yrs
About Wekan Enterprise Solutions
Wekan Enterprise Solutions is a leading Technology Consulting company and a strategic investment partner of MongoDB. We help companies drive innovation in the cloud by adopting modern technology solutions that help them achieve their performance and availability requirements. With strong capabilities around Mobile, IOT and Cloud environments, we have an extensive track record helping Fortune 500 companies modernize their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies.
Job Description
We are looking for passionate software engineers eager to be a part of our growth journey. The right candidate needs to be interested in working in high-paced and challenging environments leading technical teams, designing system architecture and reviewing peer code. Interested in constantly upskilling, learning new technologies and expanding their domain knowledge to new industries. This candidate needs to be a team player and should be looking to help build a culture of excellence. Do you have what it takes?
You will be working on complex data migrations, modernizing legacy applications and building new applications on the cloud for large enterprise and/or growth stage startups. You will have the opportunity to contribute directly into mission critical projects directly interacting with business stakeholders, customer’s technical teams and MongoDB solutions Architects.
Location - Chennai or Bangalore
- Relevant experience of 7+ years building high-performance back-end applications with at least 3 or more projects delivered using the required technologies
- Good problem solving skills
- Strong mentoring capabilities
- Good understanding of software development life cycle
- Strong experience in system design and architecture
- Strong focus on quality of work delivered
- Excellent verbal and written communication skills
Required Technical Skills
- Extensive hands-on experience building high-performance web back-ends using Node.Js and Javascript/Typescript
- Strong experience with Express.Js framework
- Working experience with Python web app development or python scripting
- Implementation experience in monolithic and microservices architecture
- Hands-on experience with data modeling on MongoDB and any other Relational or NoSQL databases
- Experience integrating with any 3rd party services such as cloud SDKs (AWS, Azure) authentication, etc.
- Hands-on experience with Kafka, RabbitMQ or any similar technologies.
- Exposure into unit testing with frameworks such as Mocha, Chai, Jest or others
- Strong experience writing and maintaining clear documentation
Good to have skills:
- Experience working with common services in any of the major cloud providers - AWS or GCP or Azure
Technical certifications in AWS / Azure / GCP / MongoDB or other relevant technologies
FirstFiling is a FinTech startup that is managed, operated, and driven by Chartered Accountants, Company secretaries, IT engineers, and Lawyers. We provide registration and financial compliance services to businesses and individuals across India.
Our aim is to simplify the lives of people by helping individuals and businesses with mandatory compliances, filings, and statutory requirements while promoting financial literacy among the masses.
Role: Backend Developer (2 openings)
Technology Profile-
The candidate must have experience in the following technologies (the more the better):
Backend:
Languages and Frameworks: PHP, NodeJS, Python, etc.
Database: MySQL, MongoDB, MariaDB, Neo4j, etc.
Extra: OAuth, Firebase
Requirements:
- Ability to reuse components
- Proven experience in working with Git and Github
- Creating and consuming a RESTful API
- You must have clear concepts of client-server architecture
- Familiarity with MVC (Model-View-Controller) design patterns
- Working experience with NoSQL and relational databases
- Understanding of OOP concepts
Furthermore, the candidate must have built or published any web app or project through which they can demonstrate their experience and knowledge of the aforementioned technologies and requirements.
- Must have applied knowledge of Python and trending data libraries.
- Experience on Python Backend Development framework like Flask, Django etc.
- Must have experience working on AWS (Lambda, EC2, S3, API Gateway etc).
- Must have experience working on SQL optimization and performance tuning.
- Nice to have technical knowledge in any ETL/ BI Tools (Datastage, Informatica, Alteryx, Microstrategy, RDM, MDM etc.
Job Location : Mumbai / Bangalore
Expereince : 3 to 8 Years
JD :
Hands on experience in Python in 2.x and 3.x versions
- Developed and deployed services in AWS serverless Architecture
- Developed REST API’s using serverless framework, AWS Lambda, API Gateway
- Developed queue and notification services using AWS components - SQS, SNS
- Implemented authorization and authentication using AWS Cognito pool
- Developed Facial recognition systems using AWS Rekognition
- Hands on experience in Flask, Tornado, Quartz framework
- Hands on experience in designing and working on MicroService & Monolithic architecture
- Basic understanding of front-end technologies HTML, CSS, JavaScript, jQuery
Mongo dB experience is must
Responsibilities
- You will design and develop large scale distributed services
- You will analyse and improve the efficiency, scalability, stability, and security of the platform as a whole.
- You will act as the primary owner of one or more components while driving innovation in your area of ownership
- You will proactively research & evaluate new tools, technologies, and techniques to improve the value of the system.
- You will work with engineering leadership in solving and architecting solutions for challenging or complex development issues.
- You will work independently and handle dependencies with very minimal oversight
- You will take initiatives in developing and maintaining integrations of best practices within the back-end.
- You will help identify systemic issues, performance bottlenecks and work on design/architect improvements.
Requirements
- You have 1 - 9 years of experience in software development.
- You have designed and scaled up the system.
- You have a strong understanding of Data Structures and Algorithms.
- You are an incessant problem solver and tougher the problem gets, more fun you have.
- You have strong command in any one or more of the following languages: Python and Django
- You understand the business impact of your decisions.
Good To Have
- You have prior experience in fintech companies
Traits We Are Looking For
- Experience in a specific tech stack doesn't matter for us.
- The general engineering mindset and aptitude is what matters more.
- Technically strong and curious.
- Should have a hacker mindset and should love exploring new technologies.
Desired Skills and Experience
Java, Python, Data Structures, Algorithms










