


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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About Astra:
Astra is a cyber security SaaS company that makes otherwise chaotic pentests a breeze with its one of a kind Pentest Platform. Astra's continuous vulnerability scanner emulates hacker behavior to scan applications for 9300+ security tests. CTOs & CISOs love Astra because it helps them fix vulnerabilities in record time and move from DevOps to DevSecOps with Astra's CI/CD integrations.
Astra is loved by 650+ companies across the globe. In 2023 Astra uncovered 2 million+ vulnerabilities for its customers, saving customers $69M+ in potential losses due to security vulnerabilities.
We've been awarded by the President of France Mr. François Hollande at the La French Tech program and Prime Minister of India Shri Narendra Modi at the Global Conference on Cyber Security. Loom, MamaEarth, Muthoot Finance, Canara Robeco, ScripBox etc. are a few of Astra’s customers.
Role Overview:
As a back-end engineer you will be responsible for developing and maintaining the platform/dashboard backend. This would involve developing & maintaining RESTful services for vulnerability management, scan orchestration, inventory management and platform features such as on-boarding, trust centers, certificates, payment integrations, vulnerability ingestion, authentication etc.
You should have a strong background in backend programming (Symfony preferred, or Laravel) and have experience with an event driven, async & distributed architecture.
During the first 6 months of your role, you will be involved in the 0->1 journey of two of our upcoming products in our platform along with the respective product owners.
Love solving hard problems? Want to build high impact products rooted in first principles? Is coding your poetry? Join us in shaping the future of cyber security.
Roles & Responsibilities
- Design, develop, and maintain backend services and APIs using Symfony PHP framework. What you create is also what you own.
- Collaborate with front-end developers to integrate user-facing elements with server-side logic.
- Collaborate with scanner teams to orchestrate scans, ingest vulnerabilities, configure scanners etc.
- Write clean, well-documented, and efficient code.
- Optimize and refactor existing code to improve performance and reliability.
- Implement security and data protection measures.
- Triage, troubleshoot and upgrade existing systems.
- Ship code to production multiple times a day/week.
- Ensure timely delivery of the features.
- Test your own features, and write test cases for continuous automated testing.
- Participate in code reviews and contribute to best practices and standards.
What we are looking for:
- 3 years experience in a similar role or similar working experience.
- Strong background in PHP backend programming. Symfony preferred, or Laravel.
- Strong understanding of software architecture principles and design patterns.
- Experience with an event driven (subscribers/listeners), async (MessageHandlers & job queues) & distributed (load-balanced) architecture.
- Experience with PostgreSQL database and data modeling.
- Understanding of concepts such as Dependency Injection, ORM, data validation, error handling etc.
- Experience with Docker, Kubernetes, GitHub Actions (good to have).
- Experience with Agile methodologies.
- Excellent problem-solving skills and the ability to think strategically about technical solutions.
- Strong communication and interpersonal skills, with the ability to collaborate effectively with cross-functional remote teams.
- Demonstrated track record of delivering high-quality software products on schedule.
- Knowledge of industry best practices in software development, security, and compliance.
- Knowledge of application & infrastructure security - helps you stand out.
What We offer:
- Adrenalin rush of being a part of a fast-growing company, and working on hard problems that matter.
- Fully remote, agile working environment.
- Good engineering culture with full ownership in design, development, release lifecycle.
- A wholesome opportunity where you get to build things from scratch, improve and ship code to production in hours, not weeks.
- Holistic understanding of SaaS and enterprise security business.
- Experience with the security side of things.
- Annual trips to beaches or mountains (next one is to Wayanad).
- Open and supportive culture.
- Health insurance & other benefits for you and your spouse. Maternity benefits included.

We are seeking a highly skilled Backend Developer to join our team and contribute to the development and improvement of both our customer-centric SaaS platform and internal systems. As a Backend Developer, you will be responsible for designing, implementing, and maintaining the server-side logic of our application, ensuring high performance, scalability, and security.
As a Backend Developer with expertise in Java, and PostgreSQL, you will play a critical role in developing and maintaining the backend infrastructure of our SaaS and internal platforms, ensuring its reliability, scalability, and performance. Join our team and be a part of building cutting-edge software solutions that empower our customers and drive business growth.
Responsibilities:
- Collaborate with cross-functional teams, including front-end developers, product managers, and designers, to understand project requirements and translate them into technical specifications.
- Design and develop server-side logic, APIs, and database schema to support the functionality and performance requirements of our SaaS platform.
- Write clean, modular, and well-documented code using any relevant programming language preferably Java with SpringBoot.
- Optimize the backend systems for maximum speed and scalability, ensuring high performance and responsiveness of the application.
- Implement data storage solutions using PostgreSQL or other relational databases, ensuring data integrity and security.
- Conduct thorough testing and debugging to identify and resolve any issues or bugs in the backend code.
- Stay up-to-date with emerging technologies, industry trends, and best practices in backend development and contribute to the continuous improvement of our development processes.
Requirements:
- Proven work experience as a Backend Developer or similar role, with a focus on server-side development.
- Proficiency in working with relational databases, particularly PostgreSQL, and writing efficient SQL queries.
- Familiarity with SaaS concepts and architecture.
- Experience with API design and development, including RESTful APIs.
- Solid understanding of software development principles, including object-oriented programming, design patterns, and data structures.
- Experience with version control systems, such as Git.
- Strong problem-solving and analytical skills, with keen attention to detail.
- Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.
- Bachelor's degree in Computer Science, Engineering, or a related field is preferred, but not mandatory.

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 optimization 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

Job Overview
We are looking for a talented Senior Backend Developer to join our team in developing backend servicing. As a key member of our development team, you will be responsible for cross-functional teams to design, develop, and maintain backend services and APIs using Node.js. The ideal candidate is passionate about distributed systems, has experience with backend services and is excited about optimising applications for performance, scalability, and reliability.
Responsibilities:
- Design, develop, and maintain backend services and APIs using Node.js.
- Collaborate with cross-functional teams to define requirements, architect solutions, and implement features.
- Write clean, modular, and maintainable code following best practices and coding standards.
- Optimise applications for performance, scalability, and reliability.
- Implement security measures to ensure data privacy and integrity in backend systems.
- Troubleshoot and debug issues to ensure smooth operation of production systems.
- Perform code reviews to maintain code quality, consistency, and adherence to coding standards.
- Stay updated with the latest trends and technologies in backend development, Node.js, and related ecosystems
Requirements:
- Bachelor's degree in Computer Science, Engineering, or related field.
- Proven experience in backend development, with at least 4 years of experience using Node.js.
- Strong understanding of data structures, algorithms, and software design principles.
- Experience with web frameworks such as Express.js.
- Proficiency in building RESTful APIs and microservices architecture.
- Familiarity with relational and NoSQL databases (e.g., MongoDB, PostgreSQL).
- Solid understanding of asynchronous programming and event-driven architectures.
- Experience with version control systems (e.g., Git) and collaborative development workflows.
- Excellent problem-solving, analytical, and troubleshooting skills.
- Ability to work independently and in a team environment, with excellent communication skills.


Responsibilities
- Develop, deploy, and maintain scalable products
- Participate in code reviews, and design discussions to ensure code quality and distribute knowledge
- Pair with team members for functional and non-functional requirements to write well-crafted, well-tested, readable, and maintainable code.
- Help to define roadmap and architecture based on technology and business needs
- Understand business requirements and work closely with the business to provide solutions
Eligibility
- Strong expertise in Backend Python Development with skills to create APIs, integrate the functions into UI, and store and retrieve data from a variety of databases.
- Strong experience with Django/Flask.
- Strong experience in writing unit tests.
- B.Tech/B.E (Preferred CSE)


Python Developer
6-8 Years
Mumbai
N.p only immediate or who is serving LwD is 1st week of july.
- Python knowledge: object-oriented programming: inheritance, abstract classes, dataclass, dependency injection, design patterns: comand-query, repository, adapter, hexagonal architecture, swagger/Open API, flask, connexion
- Experience on AWS services: lambda, ecs, sqs, s3, dynamodb, auroradb
- Experience with following libraries boto3, behave, pytest, moto, localstack, docker
- Basic knowledge about terraform, gitlab ci
- Experience with SQL DB


technical solutions implementation, architecture design, evaluation
and investigation in a cloud environment (specifically AWS and/or
Azure), preferably with IoT products.
● Working with smaller startups or mid-sized companies
Experience in one of following programming languages:
Python/Node.js
● Python and restful API frameworks. Experience of
working/integrating with cloud services providers like AWS
(preferred) / Azure / GCP
● Good understanding of HTML, CSS, Javascript & jQuery. Hands
on experience with React.js/React.native Experience in REST APIs,
SSO.
● Experience with server-side programming in a high volume
large system / application environment including the availability,
scalability, resiliency, and performance design patterns
● Management of hosting environment, including database
administration (preferably relational databases MySQL, Postgres etc.)
● Familiarity with software configuration management tools,
defect tracking tools, peer review tools and source control systems
(like git). Create and maintain good quality software documentation.
● Experience & willingness to work with overseas (e.g. USA)
customers and product management teams
● Experience building, leading, managing and mentoring highperformance engineering teams of 3-10 engineers
● Good verbal & written communication skills in English

1) Looking for a Senior Python Developer who will be responsible to understand, decode and maintain a pre-coded web application (Platform).
2) Primary focus will be on resolving real-time bugs on the live platform, testing, maintaining it fully functional, and making it live.
3) Work with the team to define, design, and deliver new features.
4) Integration of user-facing elements developed by front-end developers with server-side logic.
5) Implementation of security and data protection.
6) Develop tools and applications by producing clean, efficient, reusable and testable code.
7) Should be able to participate in the requirements gathering and come up with efficient solutions.
8) Ensure platform is up-to-date with the latest technologies.
9) Should be a problem solver to contribute toward the success of the start-up.
10) Develop/Improve the core infrastructure and optimize the platform for high scalability.
11) Should be familiar with startup culture and be comfortable working with early-stage start-up.
Skills and Requirements: -
1) Expert in Python with complete knowledge of Python’s web framework ‘Django’ and related frameworks.
2) Good understanding of AWS and Azure platforms and able to make the platform optimize on the hosting, maintaining workload balancing on server.
3) Stronghold on Nginx, Redis and Celery.
4) A good experience in WebSocket to maintain In-Platform Chats.
5) Basic understanding of front-end technologies like Bootstrap, JavaScript,
JQuery, HTML5, CSS and AJAX while experience in Angular, Node JS, and React will be an added advantage.
6) Good hands-on experience in Creating REST APIs and API Integration with best coding practices.
7) Good knowledge of Relational and Non-Relational Databases.
8) Understanding of online payment gateways and integration knowledge.
9) Good understanding on Web Servers.
10) Experience working in an Agile development environment.
11) Data structure analysis and algorithm design, Solving complex performance problems and challenges.
12) Proficient understanding of code versioning tools like GIT and SVN.
13) Able to work with complex SQL queries and stored procedures.
14) Strong unit testing, integration testing and debugging skills.



Job Type: Full Time
Location: Permanent Remote / Bangalore / Thane
Skills: PYTHON, Django, Reactjs, Vue, Flask
Job Description
Are you passionate enough to be a crucial part of a highly analytical and scalable user engagement platform?
Are you ready learn new technologies and willing to step out of your comfort zone to explore and learn new skills?
If so, this is an opportunity for you to join a high-functioning team and make your mark on our organization!
The Impact you will create in the Job:
- Build campaign generation services which can send app notifications at a speed of 10 million a minute.
- Leverage the power of Kubernetes to maintain clusters running inside VPC's across the world.
- Dashboards to show Real time key performance indicators to clients.
- Develop complex user segmentation engines which creates segments on Terabytes of data within few seconds.
- Use AWS products extensively across our services such as Kinesis Data Streams, Lambda, SQS etc. that form an integral part of our scalable and robust infrastructure.
- As an individual contributor, you will tackle some of our broadest technical challenges that requires deep technical knowledge, hands-on software development, technical leadership, and seamless collaboration with all functions.
- You will envision and develop features that are highly reliable and fault tolerant to deliver a superior customer experience.
- You will get an opportunity to work with some of the best talent in the country while learning from various highly-functional teams in the company.
- Plan and execute the roadmap with the engineering team to build and deliver next-generation systems.
- You will also collaborate with cross-functional teams to meet deliverables throughout the software development lifecycle.
- Identify and improvise areas of improvement through data insights and research.
What we look for?
- 4-7 years’ experience in full stack Python development
- Very strong analytic and problem-solving skills
- Solid understanding of a relevant and globally supported framework- both front-end and back-end, if necessary, for example - Angular, React, Vue, or Django/Flask.
- Solid understanding of engineering best practices, continuous integration, and incremental delivery.
- Proven experience on design and implementation of the overall web and database architecture and updated knowledge on the latest practices and associated versions.
- Ensuring the entire stack is designed and built for speed and scalability.
- Familiarity with RESTful API design.
- Knowledge of continuous integration and deployment.
- Familiarity with Server management and deployment on AWS/GCE.
- Sound knowledge of CSS pre-processors, bundlers, and associated languages/syntaxes/libraries like Sass, Less, and webpack
- Experience implementing testing platforms and unit tests.
What’s in it for you?
- Immense growth, continuous learning and deliver the best to the top-notch brands
- Work with some of the most innovative brains
- Opportunity to explore your entrepreneurial mind-set
- Open culture where your creative bug gets activated.
If this sounds like a company you would like to be a part of, and a role you would thrive in, please don’t hold back from applying! We need your unique perspective for our continued innovation and success!
So let’s converse! Our inquisitive nature is all keen to know more about you.


Designing and developing high-volume, low-latency applications for
critical systems and delivering high-availability and performance
• Contributing in all phases of the development lifecycle
• Writing well designed, testable, efficient code
• Test cases should be upto the mark
• Performance tuning knowledge is a must. Experience is an added advantage.
• In Backend – fundamentals of all languages is a must• Good hands-on software development experience with proven working experience
in Python development
• Expert in Python, with knowledge of at least one Python web framework (such
as Django, Flask)
• Familiarity with some ORM (Object Relational Mapper) libraries
• Able to integrate multiple data sources and databases into one system
• Understanding of the threading limitations of Python, and multi-process
architecture
• Strong unit test and debugging skills
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and
CSS3
• Understanding of memory model/GC from performance point of view.

