


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
About
Connect with the team
Similar jobs
Job Title: Backend Developer (Kotlin/Java)
Experience: 5-7 Years
Location: Remote (Candidates from Pune/Mumbai preferred for training-related travel)
Salary: ₹15-25 LPA CTC (1L up to 1.5L In hand Per Month)
Job Description:
We are seeking a highly skilled Backend Developer with expertise in Kotlin/Java (not Android) to join our dynamic team. The ideal candidate will have experience building scalable backend solutions, working with relational databases, and utilizing modern frameworks like Spring and Webflux.
This is a remote role, but candidates based in Pune/Mumbai who can travel for training purposes will be preferred.
- Must-Have Skills:Kotlin/Java backend development (5+ years)
- Spring Boot/Webflux (Reactor) (1+ year)
- Relational Databases (PostgreSQL preferred) (2+ years)
- Strong problem-solving skills and attention to detail
- Excellent communication skills and professionalism
- Key Responsibilities:Develop and maintain backend services using Kotlin/Java.
- Design and implement scalable microservices with Spring Boot/Webflux (Reactor).
- Work with relational databases (PostgreSQL preferred) and ensure optimal data handling.
- Optimize backend performance and ensure system reliability.
- Collaborate with frontend, DevOps, and product teams to deliver high-quality software solutions.
- Ensure best practices in coding, security, and system design.
- Nice to Have:Experience with NoSQL databases (Cassandra/MongoDB)
- Knowledge of Kafka for event-driven architecture
- Familiarity with AWS, Docker for cloud-based deployments
- Exposure to full-stack development with React
- Understanding of ClickHouse for analytics
Company:
The client is a technology company specializing in custom software development, mobile app creation, cloud services, data analytics, applied AI, cybersecurity, web design, and UX/UI design. They emphasize building robust, scalable, and world-class software products and applications. Their expertise spans various technology stacks, including MERN, MEAN, applied AI, Oracle, AWS, GCP, Microsoft Azure, and PAAS. They have developed products such as Digirestro, Task Manager, and Attendance Management. The company operates from multiple locations, including Pune and Nagpur in India, and Kendall Park, New Jersey, USA.
- Why Join Us?Competitive salary (₹15-25 LPA)
- Remote work flexibility (with occasional travel to Pune/Mumbai for training)
- Opportunity to work on modern tech stacks
- Collaborative and professional work environment


Roles:
- Developing core infrastructure in Python, Django.
- Developing models and business logic (e. g. transactions, payments, diet plan, search, etc).
- Architecting servers and services that enable new product features.
- Building out newly enabled product features
- Minimum 4 years of industry or open-source experience.
- Proficient in at least one OO language: Python(preferred)/Golang/Java.
- Writing high-performance, reliable and maintainable code.
- Good knowledge of database structures, theories, principles, and practices.
- Experience working with AWS components [EC2, S3, RDS, SQS, ECS, Lambda].

Engineering Manager – Backend
Opportunity in this role / Why should you join us?
Series D funded supply chain startup.
Requirements
- Software engineering experience of greater than or equal to 7 years
- Experience managing a technical team of at least 3 people
- Exposure to consumer facing products
- Strong technical background and ability to contribute to design and review
- Familiarity with our tech stack or an analogous tech stack
Technologies Used
- Web application frameworks : Ktor, Spring Boot, Ruby on Rails, Node.js, Java Play, AWS Lambda
- Languages : Kotlin, Java, Ruby, Javascript, Python
- Datastores : PostgreSQL, Aerospike, Redis, DynamoDB, Amazon Redshift
- Communication : HTTP, Amazon SQS, Sidekiq, Amazon SNS
- Server management : Amazon ECS, Docker
- Design frameworks : Domain Driven Design, Clean Architecture, Layered Architecture
Roles and Responsibilities
This role requires a person to drive the engineering of a set of products by aligning with business and product
stakeholders and building and upskilling a team to aid in this. The responsibilities include:
Business and product alignment and planning
- Work closely with business and product stakeholders to understand and align with product initiatives and iterations.
- Help shape the engineering requirement by aligning with the product manager and fleshing out concepts and user flows.
- Formalize business requirements into roadmaps and sprints.
- Product and system development
- Drive high level modeling and design for projects, also focusing on non-functional aspects, including but not limited to database design, communication protocols, deployment systems, etc.
- Drive adoption of design frameworks like domain driven design, clean architecture, etc., resulting in a robust layered architecture.
- Drive good code review practices, using the review process as a mentoring tool to upskill people.
- Ensure test coverage of systems, partly through unit and integration testing, and partly through blackbox testing by collaborating with the Quality Assurance team, via good testing practices.
- Project Management
- Drive the execution of the project by delegating tasks effectively.
- Resolve blockers through technical expertise, negotiation and delegation.
- Estimate timelines and ensure adherence to them through effective sync-ups and course corrections.
- Maintenance
- Formulate SLAs and oversee their adherence for the various systems, effectively tracking issues and performance inefficiencies.
- Performance monitoring and optimization for systems.
- Drive technical re-design, remodeling and refactoring of systems for robustness and sustainability.
- Team Management
- Typically manage a team of 3 - 6 members and a portfolio of 3 - 6 products.
- Do periodic assessment of reportees, chart their career growth paths and train them.
- Recruit members into the team by collaborating effectively with the recruitment team.
Product Overview
You will be contributing to products concerning both customers and partner drivers. Product sectors
include:
- Growth : You’ll build tools to help boost user growth on the platform including our industry bestdriver on-boarding, training and certification system, referral system, and lead managementmmodels.
- Lifecycle Management : Build tools to help users engage with the platform better, which includes rewards and recognition module, subscription service, account management tools, partner and customer wallets and payout modules, and churn detection systems among others.
- Transaction Experience : You’ll help deliver the most delightful booking experience to our customers and drivers. As part of this team, you’ll be responsible for our core booking system, pricing and payment systems, location tracking and filtering services, fraud prevention systems, and in-app ticketing and support among others.
- Fulfilment : As part of the fulfilment team, you’ll work on systems which ensure high degree of ride fulfilment on the platform. Tools including allocation methodologies and system, dynamic pricing, dynamic partner routing, and partner re-activation tools among others.
- Enterprise Solutions : You’ll help Porter’s enterprise customers achieve delivery excellence. You’ll build tools for contract management, fleet management, fleet and route optimisation tools, alerting and monitoring tools, and analytics suite among others.


About TechWeirdo:
Techweirdo delivers secure enterprise solutions from SaaS to On-Premise, anywhere, from Application to AI. We offer consultation, services and products to holistically address the digital transformation goals of the enterprises.
Skills/ Role Requirements:
- Strong hands-on experience of Django REST framework
- Experience in working in a dockerized environment
- Implementation knowledge of scalable microservices architecture
- Experience in using celery
- Domain-driven design principles
- Strong SQL skills
- Ability to deploy a python backend on production in a dockerized environment with Nginx and Gunicorn
- Experience in integrating ML models in Django or Flask is a plus
- Experience with AWS services like S3, API gateway, SES, SQS, SNS, Aurora, Dynamo is plus
- Knowledge of lambda and cloudformation are plus
- Knowledge of React is plus
Working with TechWeirdo be like:
- Surrounded by curious learners: With a Growth Mindset as our core strength, we created a learning environment with curious tech learners.
- New challenges every day: There is no ordinary day at TechWeirdo, if you like solving problems, then this is the right place for you.
- Zero micro-management, limited supervision: We encourage our team to take on challenging tasks and solve complex problems by taking ownership of their tasks. We trust our team to take calculated risks.
- Great networking: You will be connected with c-suite executives of top organizations while working with our winning team.
- Building technology how you want, when you want: We welcome people who see things differently as they are the one who has ability to change the world.
- Being heard in every meeting: At TechWeirdo, suggestions are encouraged, initiatives are supported, and opinions and perspectives are valued.


This is a fully remote opportunity
About Us:
We at Ascendeum provide Data and AdTech strategy consultation to businesses worldwide. We started our journey with private funding and has been operating profitably since 2015. We are a lean team of 50+ highly productive and smart people spread across various parts of India who have been consistently delivering intelligent solutions that enable enterprise-level websites and apps to maximize their digital advertising returns.
Job Details:
We are looking for an analytical, results-driven Back-end Engineer who holds a passion to troubleshoot and improve current back-end applications and processes. The Back- end Developer will use his or her understanding of programming languages and tools to analyze current codes and industry developments, formulate more efficient processes, solve problems, and create a more seamless experience for users.
Job Responsibilities:
- 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.
- 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 needed.
Desired Skills and Experience:
- Bachelor’s degree in computer programming, computer science, or a related field.
- Solid experience specializing in developing and managing back-end systems for enterprise-grade applications.
- Strong command on Python and databases such as MySQL.
- Strong understanding of the web development cycle and programming
- techniques and tools.
- Focus on efficiency, user experience, and process improvement.
- Excellent project and time management skills.
- Strong problem solving and verbal and written communication skills.
- Ability to work independently or with a group.


About us:
HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.
We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.
To know more, Visit! - https://www.happyfox.com/
We’re looking for a Lead Backend Engineer with 5+ years of experience in building web services to join our engineering team to help architect, build and run our growing list of products. You should have prior experience being responsible for building sufficiently complex products/services and mentoring software engineers.
Responsibilities:
- Lead a team of engineers working on our product roadmap. You are expected to contribute to feature development with hands-on development tasks
- Oversee software architecture, source control workflows, and CI/CD processes and perform code reviews to ensure exceptional code quality
- Improve the development experience and the quality of the codebase. You will define and uphold best practices and coding standards for the team
- Responsible for architecture and design decisions
- Own stability and performance of the service that you work on
- Work with the Engineering Manager to ship stable software on time
- Contribute to the vision and long-term strategy in your area of expertise
Requirements:
- 2+ years of experience in a technical lead role designing and building complex backend systems
- 5+ years of professional software development experience
- Excellent knowledge of best practices and coding patterns
- Deep knowledge of backend programming languages like Python and web application frameworks like Django
- Solid experience in building web services using relational databases like PostgreSQL or NoSQL databases like MongoDB
- Proficiency with Amazon Web Services (AWS) or Google Cloud Platform or Azure
- Extensive experience with Linux/UNIX production environments
- Strong sense of quality in terms of both program architecture and code style
- Passion to dig into technically complex problems to troubleshoot and figure out a solution
- Desire to continuously improve and ship the best quality product
- Pragmatic approach to make sure technical decisions align with actual business needs.
- Good understanding of the trade-offs when building for product value, reliability, or performance
- Excellent communication skills with the ability to discuss and explain your point of view clearly and effectively
- An engineering degree is a must(B.E. CS preferred)

We are looking for a passionate backend developer with 2-3 years of experience who loves challenges and building something from ground-up. Past track record of building a statistical tool will be an advantage
Responsibilities and Duties
- Design of system and architecture for all features and problems
- Translate high level business problems into scalable design and code
- Maintain existing backend code and infrastructure
- Working with team to solve problems and discuss new ideas
- Smart system design smart having a balance between speed of implementation and scalability
- Ownership of projects or codes written
Qualifications and Skills
- Passion to work for startup and aptitude for fast learning
- In-depth understanding of Django and Django Rest Framework
- Expertise in python
- Basic machine learning knowledge, Company will help the candidate to upskill
- Ability to write clean, scalable, robust code
- Understanding of complete lifecycle of software development
- Basic knowledge of front-end development
- Good understanding of restful api design
- Working knowledge of AWS (EC2, RDS and Postgresql)
- Familiarity deploying SAAS solution with Amazon AWS and Docker (Kubernetes) etc

Responsibilities:
- Ability to work in an existing codebase and collaborate with a diverse team
- Experience in building enterprise-scale backend REST APIs with frameworks such as Nest.js & Express.js using an API-first paradigm
- Intimate knowledge of crafting highly performant database queries
- Hands-on experience implementing relational database structures, including tables, indexes, views, etc.
- A mindset towards building systems for the cloud and DevOps fundamentals
- Working knowledge of cloud infrastructure services is good to have. If not then willingness to learn should be there.
- Focus towards building security, performance, and scalability into services from the beginning
- Experience with debugging code and troubleshooting technical issues in order to craft appropriate solutions



Experience Required -2 years to 6 years
Location -A-45 Atrium of Quark city Mohali
You will be responsible for reviewing requirements, optimizing code, writing documentation,
writing tests with proper coverage, and following all the best standards.
Requirements:
- Django
- Flask
- Django REST Framework
- Pytest
- Docker


