
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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We are looking for a Python Backend Developer to design, build, and maintain scalable backend services and APIs. The role involves working with modern Python frameworks, databases (SQL and NoSQL), and building well-tested, production-grade systems.
You will collaborate closely with frontend developers, AI/ML engineers, and system architects to deliver reliable and high-performance backend solutions.
Key Responsibilities
- Design, develop, and maintain backend services using Python
- Build and maintain RESTful APIs using FastAPI
- Design efficient data models and queries using MongoDB and SQL databases (PostgreSQL/MySQL)
- Ensure high performance, security, and scalability of backend systems
- Write unit tests, integration tests, and API tests to ensure code reliability
- Debug, troubleshoot, and resolve production issues
- Follow clean code practices, documentation, and version control workflows
- Participate in code reviews and contribute to technical discussions
- Work closely with cross-functional teams to translate requirements into technical solutions
Required Skills & Qualifications
Technical Skills
- Strong proficiency in Python
- Hands-on experience with FastAPI
- Experience with MongoDB (schema design, indexing, aggregation)
- Solid understanding of SQL databases and relational data modelling
- Experience writing and maintaining automated tests
- Unit testing (e.g., pytest)
- API testing
- Understanding of REST API design principles
- Familiarity with Git and collaborative development workflows
Good to Have
- Experience with async programming in Python (async/await)
- Knowledge of ORMs/ODMs (SQLAlchemy, Tortoise, Motor, etc.)
- Basic understanding of authentication & authorisation (JWT, OAuth)
- Exposure to Docker / containerised environments
- Experience working in Agile/Scrum teams
What We Value
- Strong problem-solving and debugging skills
- Attention to detail and commitment to quality
- Ability to write testable, maintainable, and well-documented code
- Ownership mindset and willingness to learn
- Teamwork
What We Offer
- Opportunity to work on real-world, production systems
- Technically challenging problems and ownership of components
- Collaborative engineering culture
Position: Python Developer – Flask
Experience: 3+ Years
Location: Bangalore
Joining: Immediate Joiner Preferred
Employment Type: Full-Time
About the Role
We are looking for a skilled and passionate Python Developer with strong experience in Flask framework to join our growing development team. The ideal candidate should have hands-on experience in developing scalable backend applications, REST APIs, and integrating databases/services in a fast-paced environment.
Key Responsibilities
Develop, test, and maintain backend applications using Python and Flask.
Design and build RESTful APIs for web and mobile applications.
Collaborate with frontend developers, QA teams, and product stakeholders.
Write reusable, scalable, and efficient code.
Integrate third-party APIs and services.
Optimize application performance and troubleshoot issues.
Work with databases and ensure data security and integrity.
Participate in code reviews and technical discussions.
Maintain proper documentation for development activities.
Required Skills
3+ years of experience in Python development.
Strong hands-on experience with Flask framework.
Good understanding of REST API development.
Experience with MySQL/PostgreSQL/MongoDB databases.
Familiarity with ORM libraries such as SQLAlchemy.
Knowledge of Git/version control systems.
Understanding of software development lifecycle and agile methodologies.
Basic understanding of Docker and deployment processes is an added advantage.
Good debugging and problem-solving skills.
Preferred Skills
Experience with AWS/Azure or cloud platforms.
Exposure to microservices architecture.
Familiarity with CI/CD pipelines.
Knowledge of frontend technologies like React or Angular is a plus.
Educational Qualification
Bachelor’s degree in Computer Science, Information Technology, or related field.
What We’re Looking For
Immediate joiner or candidates with short notice period.
Strong communication and teamwork skills.
Self-driven and proactive mindset.
About Techjays
At Techjays, we build production-grade AI platforms for global clients. We operate at the intersection of backend engineering, distributed systems, and applied AI — delivering secure, scalable, and enterprise-ready intelligent systems. Our team has built and scaled products at Google, Akamai, NetApp, ADP, Cognizant, and Capgemini.
About the Role
This is not a feature-delivery role. We are looking for an AI Lead who can architect, own, and scale intelligent backend systems end-to-end. You will drive both technical direction and execution — working across LLM integrations, RAG pipelines, agentic AI workflows, and cloud-native backend systems for global clients.
What You'll Do
- Architect and scale backend systems powering AI-driven applications
- Design and implement RAG pipelines, AI agents, and LLM integrations
- Own systems end-to-end — from architecture to deployment and scaling
- Integrate and optimize LLMs (Claude, GPT, Gemini) for real-world production use cases
- Build high-performance distributed systems with observability and cost efficiency
- Lead backend and AI initiatives with strong technical ownership
- Mentor engineers and raise the technical bar across teams
- Collaborate with product and AI teams to deliver AI-native solutions
What We're Looking For
- 6–10 years of strong backend engineering experience
- Hands-on expertise in Python (FastAPI / Django / Flask)
- Deep understanding of Generative AI and LLM-based systems
- Strong experience with RAG pipelines and Vector Databases (Pinecone, FAISS, ChromaDB, Weaviate)
- Solid knowledge of Agentic AI — building autonomous agents and multi-agent workflows
- Proficiency in AWS or GCP in production environments
- Experience with distributed systems, microservices, and system design
- Strong grasp of Data Structures, Algorithms, and Design Patterns
- Familiarity with WebSockets, Git, Linux/Unix, and CI/CD
Nice to Have
- Experience with Anthropic Claude API and Claude Code
- Familiarity with real-time data systems or streaming (Kafka, etc.)
- MLOps and AI system lifecycle experience
- Optimizing AI systems for latency, cost, and scalability
Who You Are
- You think in systems, not just features
- You take full ownership of what you build
- You are comfortable navigating fast-moving, ambiguous environments
- You stay updated with the latest in Generative AI and backend technologies
- Strong communicator who can collaborate across teams and global clients
What We Offer
- Competitive compensation (Best in Industry)
- Work on production-grade AI systems used by global clients
- Exposure to cutting-edge AI tools and frameworks
- A culture that values clarity, integrity, and continuous growth
We are a tech venture which provides Product Engineering, QA Automation, Infrastructure, Data, and Market Research services.
Technical Proficiency :
Must have :
-
Strong development experience in Python in the environment of Unix/Linux/Ubuntu
-
Strong practical knowledge of Python and its libraries.
-
Current working experience with cloud deployment of AWS/Azure/GCP, Microservice architecture, and Docker in Python.
-
Good knowledge of CI/CD and DevOps practices
-
Good Experience of Python with Django/ Scrapy/ Flask frameworks.
-
Good Experience in Jupyter/ Docker/ Elastic Search, etc.
-
Solid understanding of software development principles and best practices.
-
Strong analytical thinking and problem-solving skills.
-
Proven ability to drive large-scale projects with a deep understanding of Agile SDLC, high collaboration, and leadership.
Good to have : -
Expected to have migration experience from one version to the other, as this project is about migration to the latest version.
-
Preferred if had an OpenEdx platform experience or any LMS platform.
About Merito :-
Merito is a curated talent platform where we identify, assess, and connect candidates for matching job opportunities. We are working with the mission to change the way hiring is done. The company is founded by a team consisting of alumni from IIM Ahmedabad, McKinsey with more than 2 decades of experience in recruitment, training, and coaching.
About Our Client :-
Our client is headquartered in California and Y Combinator backed Shopify-like platform for creators & knowledge professionals (coaches, instructors, experts, artists etc.) to launch, manage and grow their business online. Founded by IIT/ IIM/ BITS/ Yale/ BCG Alumni and 3X Entrepreneurs, they are well funded and backed by top Indian VC firms along with start-up veterans like Kunal Shah (CRED). The company is founded by alumni from top IITs, IIMs, BITS, Yale including ex-entrepreneurs and from firms such as BCG, Hike, Dunzo and P&G.
Since the launch of its first version in December 2020 they have grown 25X. Creators have earned more than $1 Million since launch through the platform.
We have just closed our series A (yet to announce) and are looking to build out our leadership team across functions.
Job Description :-
We are looking for Sr. Backend Developers who have the passion to solve complex problems at scale and who will be able to drive the technical architecture and product development
Your responsibilities :-
- Own and drive product development and engineering management in a fast paced, rapidly changing environment.
- Understand business processes and functional requirements and map them to tangible software products using apt, efficient and quality technical solutions.
- Build and lead the technical team with focus on infusing culture resulting in energetic & positive outcomes.
- Review and influence new evolving design, architecture, standards and methods with stability, maintainability and scalability in mind.
- Constantly be on the lookout for ways to improve the product and processes built for resolving issues proactively and deliver better value to the customers.
Required Skills :-
- A completed Bachelor`s degree in Computer Science or related field
- 3+ years professional experience in software development
- Proficiency in, at least, one modern programming language; Python would be preferred with knowledge of Django
- Computer Science fundamentals in object-oriented design
- Computer Science fundamentals in data structures
- Computer Science fundamentals in algorithm design, problem solving, and complexity analysis
- Git or other distributed version control system
- Experience in early-stage startup environment and inherent hustle factor would be an advantage
Skills
Pyhton,Postgres,Redis
Regards
Team Merito
As an SSE, you will play a crucial role in designing, developing, and maintaining our backend systems
that power our platform. The ideal candidate will have a solid background in Python Django and a
strong understanding of databases, caching, and distributed systems.
● Design, develop, and maintain robust, scalable, and high-performance backend systems using
Python Django.
● Collaborate with cross-functional teams to understand business requirements and translate
them into technical solutions.
● Optimize application performance and scalability by implementing caching strategies, load
balancing, and distributed computing techniques.
● Ensure data integrity and security by implementing best practices for data storage, retrieval,
and access control.
● Develop and maintain integrations with external APIs and services to support seamless
interactions with third-party systems.
● Identify and address performance bottlenecks and other system issues to improve overall
system efficiency.
● Write clean, maintainable, and testable code following industry-standard coding practices.
● Conduct code reviews and provide constructive feedback to peers to ensure code quality and
adherence to best practices.
● Mentor junior team members and assist in their professional growth.
● Leads a project end-to-end and collaborates across functions. Drives planning,
estimation and execution.
● Understands requirements well and comes up with efficient design
● Develops complex, well backed and bug-free products. Estimates accurately.
● Takes well-reasoned tech decisions keeping in mind goals and trade-offs
● Becomes a go-to person in more than one area. Provide technical mentoring to team
● Communicates clearly, gets clarifications and establishes expectations for all parties
● Helps establish SDLC best practices and high standards of code quality
● Demonstrates excellent problem solving & debugging skills
● Proactively identifies and resolves issues in requirements, design and code
● Contributes in tech recruitment efforts
Ideal Candidate Profile
● Solid experience in RoR, Golang, NodeJS or Python. Good to have exposure to ML.
● Should have experience in cloud computing
● Has an ability to quickly learn and contribute in multiple codebase
● Overcomes roadblocks and requires minimal oversight
● Takes initiatives to fix issues/tech debts before assigned to him/her
● Able to deep dive into codebase and advise QA of possible regression impact
● Communicates tech decisions through design docs and tech talks
● Has delivered projects with end-to-end accountability
● Keeps track of industry trends and introduces right tech/tools for a given job
● Excellent understanding of software engineering practices, Design Patterns, Data
Structures, Algorithms
● 8+ years of experience in product driven organization
● A Bachelors or Masters degree in engineering from a reputed institute (preferably
IITs, NITs, or other top engineering institutes)
Responsibilities for Staff Engineer role:
- Having experience in Java/Python/Golang along with Springboot, Micorservices, RDBMS
- Experience required: 10yrs to 15 yrs.

Job Role – Technical Lead – Back End
Work Location - Bengaluru
Job Description –
Requirements
• 5+ years of experience in product companies
• Experience in software development and coding in multiple languages
• Experience in both front-end and back-end development with mastery in back-
end.
• Excellent knowledge of software and application design and architecture
• Understanding of software quality assurance principles
• Managed at least 4-5 engineers in their experience.
• High quality organisational and leadership skills
• Outstanding communication and presentation abilities
If you think you are one of them then please reply with your interest and we will take your candidature ahead for the next level of evaluation. Below information would be appreciated more:
Current CTC:
Expected CTC:
Notice Period:
Update Resume: please attach
- 0-3 application development experience in solution building on Blockchain technology.
- Solid understanding of and experience in blockchain / distributed ledger technologies familiarity with platforms, such as Ethereum and Hyperledger.
- Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus
- Security Architecture / Cryptography is a plus.
- Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus.
- Experience on development tools such as Hyperledger Fabric/Sawtooth,Geth , Composer, Solidity Remix Functional
- Basic understanding of Web applications architecture and protocols.








