


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: Senior Python Developer – Product Engineering
Location: Pune, India
Experience Required: 3 to 7 Years
Employment Type: Full-time
Employment Agreement: Minimum 3 years (At the completion of 3 years, One Time Commitment Bonus will be applicable based on performance)
🏢 About Our Client
Our client is a leading enterprise cybersecurity company offering an integrated platform for Digital Rights Management (DRM), Enterprise File Sync and Share (EFSS), and Content-Aware Data Protection (CDP). With patented technologies for secure file sharing, endpoint encryption, and real-time policy enforcement, helps organizations maintain control over sensitive data — even after it leaves the enterprise perimeter.
🎯 Role Overview
We are looking for a skilled Python Developer with a strong product mindset and experience building scalable, secure, and performance-critical systems. You will join our core engineering team to enhance backend services powering DRM enforcement, file tracking, audit logging, and file sync engines.
This is a hands-on role for someone who thrives in a product-first, security-driven environment and wants to build technologies that handle terabytes of enterprise data across thousands of endpoints.
🛠️ Key Responsibilities
● Develop and enhance server-side services for DRM policy enforcement, file synchronization, data leak protection, and endpoint telemetry.
● Build Python-based backend APIs and services that interact with file systems, agent software, and enterprise infrastructure.
● Work on delta sync, file versioning, audit trails, and secure content preview/rendering services.
● Implement secure file handling, encryption workflows, and token-based access controls across modules.
● Collaborate with DevOps to optimize scalability, performance, and availability of core services across hybrid deployments (on-prem/cloud).
● Debug and maintain production-level services; drive incident resolution and performance optimization.
● Integrate with 3rd-party platforms such as LDAP, AD, DLP, CASB, and SIEM systems.
● Participate in code reviews, architecture planning, and mentoring junior developers.
📌 Required Skills & Experience
● 3+ years of professional experience with Python 3.x, preferably in enterprise or security domains.
● Strong understanding of multithreading, file I/O, inter-process communication, and low-level system APIs.
● Expertise in building RESTful APIs, schedulers, workers (Celery), and microservices.
● Solid experience with encryption libraries (OpenSSL, cryptography.io) and secure coding practices.
● Hands-on experience with PostgreSQL, Redis, SQLite, or other transactional and cache stores.
● Familiarity with Linux internals, filesystem hooks, journaling/logging systems, and OS-level operations.
● Experience with source control (Git), containerization (Docker/K8s), and CI/CD.
● Proven ability to write clean, modular, testable, and scalable code for production environments.
➕ Preferred/Bonus Skills
● Experience in EFSS, DRM, endpoint DLP, or enterprise content security platforms.
● Knowledge of file diffing algorithms (rsync, delta encoding) or document watermarking.
● Prior experience with agent-based software (Windows/Linux), desktop sync tools, or version control systems.
● Exposure to compliance frameworks (e.g., DPDP Act, GDPR, RBI-CSF) is a plus.
🌟 What We Offer
● Work on a patented and mission-critical enterprise cybersecurity platform
● Join a fast-paced team focused on innovation, security, and customer success
● Hybrid work flexibility with competitive compensation and growth opportunities
● Direct impact on product roadmap, architecture, and IP development

About us
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 8300+ 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 an SDE 2 Back-end Engineer at Astra, you will play a crucial role in the development of a new vulnerability scanner from scratch. You will be architecting & engineering a scalable technical solution from the ground-up.
You will have the opportunity to work alongside talented individuals, collaborating to deliver innovative solutions and pushing the boundaries of what's possible in vulnerability scanning. The role requires deep collaboration with the founders, product, engineering & security teams.
Join our team and contribute to the development of a cutting-edge SaaS security platform, where high-quality engineering and continuous learning are at the core of everything we do.
Roles & Responsibilities:
- You will be joining our Vulnerability Scanner team which builds a security engine to identify vulnerabilities in technical infrastructure.
- You will be the technical product owner of the scanner, which would involve managing a lean team of backend engineers to ensure smooth implementation of the technical product roadmap.
- Research about security vulnerabilities, CVEs, and zero-days affecting cloud/web/API infrastructure.
- Work in an agile environment of engineers to architect, design, develop and build our microservice infrastructure.
- You will research, design, code, troubleshoot and support (on-call). What you create is also what you own.
- Writing secure, high quality, modular, testable & well documented code for features outlined in every sprint.
- Design and implement APIs in support of other services with a highly scalable, flexible, and secure backend using GoLang
- Hands-on experience with creating production-ready code & optimizing it by identifying and correcting bottlenecks.
- Driving strict code review standards among the team.
- Ensuring timely delivery of the features/products
- Working with product managers to ensure product delivery status is transparent & the end product always looks like how it was imagined
- Work closely with Security & Product teams in writing vulnerability detection rules, APIs etc.
Required Qualifications & Skills:
- Strong 2-4 years relevant development experience in GoLang
- Experience in building a technical product from idea to production.
- Design and build highly scalable and maintainable systems in Golang
- Expertise in Goroutines and Channels to write efficient code utilizing multi-core CPU optimally
- Must have hands-on experience with managing AWS/Google Cloud infrastructure
- Hands on experience in creating low latency high throughput REST APIs
- Write test suites and maintain code coverage above 80%
- Working knowledge of PostgreSQL, Redis, Kafka
- Good to have experience in Docker, Kubernetes, Kafka
- Good understanding of Data Structures, Algorithms and Operating Systems.
- Understanding of cloud/web security concepts would be an added advantage
What We Offer:
- Adrenalin rush of being a part of a fast-growing company
- Fully remote & agile working environment
- A wholesome opportunity in a fast-paced environment where you get to build things from scratch, improve and influence product design decisions
- Holistic understanding of SaaS and enterprise security business
- Opportunity to engage and collaborate with developers globally
- Experience with security side of things
- Annual trips to beaches or mountains (last one was Chikmangaluru)
- Open and supportive culture

About Us:
MyOperator and Heyo are India’s leading conversational platforms empowering 40,000+ businesses with Call and WhatsApp-based engagement. We’re a product-led SaaS company scaling rapidly, and we’re looking for a skilled Software Developer to help build the next generation of scalable backend systems.
Role Overview:
We’re seeking a passionate Python Developer with strong experience in backend development and cloud infrastructure. This role involves building scalable microservices, integrating AI tools like LangChain/LLMs, and optimizing backend performance for high-growth B2B products.
Key Responsibilities:
- Develop robust backend services using Python, Django, and FastAPI
- Design and maintain scalable microservices architecture
- Integrate LangChain/LLMs into AI-powered features
- Write clean, tested, and maintainable code with pytest
- Manage and optimize databases (MySQL/Postgres)
- Deploy and monitor services on AWS
- Collaborate across teams to define APIs, data flows, and system architecture
Must-Have Skills:
- Python and Django
- MySQL or Postgres
- Microservices architecture
- AWS (EC2, RDS, Lambda, etc.)
- Unit testing using pytest
- LangChain or Large Language Models (LLM)
- Strong grasp of Data Structures & Algorithms
- AI coding assistant tools (e.g., Chat GPT & Gemini)
Good to Have:
- MongoDB or ElasticSearch
- Go or PHP
- FastAPI
- React, Bootstrap (basic frontend support)
- ETL pipelines, Jenkins, Terraform
Why Join Us?
- 100% Remote role with a collaborative team
- Work on AI-first, high-scale SaaS products
- Drive real impact in a fast-growing tech company
- Ownership and growth from day one

- Deployment and production support.
- Strong knowledge of SQL database and experience in writing queries with and without ORM.
- Designing and creating RESTful APIs for internal and partner consumption
- Experience of code versioning tools, such as Git, Bitbucket, Github


If you love to work in a fast-paced startup environment and desire to solve some very
challenging problems using technology, we want to hear from you.
We are looking for an enthusiastic and energetic individual to work as a Senior Software
Developer. You will be involved in working on multiple products for the scaling and growth
stage of the lifecycle.
We work closely with the real world,. If you are interested to grow and learn in your career
and at the same time work on products for the 1Bn user market, we encourage you to apply.
Responsibilities
● Managing and guiding a team of junior developers for timely delivery of product and
milestones
● Optimization of the application for maximum speed and scalability
● Implementation of security and data protection
● Design and implementation of data storage solutions
● Design & Build: Designing and developing high-volume, low-latency applications for
mission-critical systems, and delivering high-availability and performance.
● Collaborate - Collaborating within your product streams and team to bring best
practices and leverage a world-class tech stack.
● Measurable Outcome - You will need to set quantifiable objectives that encapsulate
the quality attributes of a system. The fitness of the application is measured against
set marks.
● DevOps - You will need to set up every essential (tracking/alerting) to make sure the
infrastructure/software you built is working as expected.
● Design and development of our REST APIs
● Help maintain code quality, architecture, and automation
Required Knowledge and Skills
● 3 - 5 years of experience working in backend development technologies and DevOps
● Highly curious and ready to dive into complex technical challenges.
● Proficiency in development and scripting in Python, Django/Flask framework.
● Database design and management, including being up on the latest practices -
bonus points for MySQL and MongoDB
● User authentication and authorization between multiple systems, servers, and
environments
● Integration of multiple data sources and databases into one system
● Management of hosting environment, including database administration and scaling
an application to support load changes
● Setup and administration of backups
● Understanding differences between multiple delivery platforms such as mobile vs
desktop, and optimizing output to match the specific platform
● Creating database schemas that represent and support business processes
● Implementing automated testing platforms and unit tests
● Understanding of “session management” in a distributed server environment
● Server management and deployment for the relevant environment
● Appreciation for clean and well-documented code
● Hands-on experience with architecture and structural design patterns
● Expertise in designing, developing, deploying, and integrating RESTful APIs
● Ability to understand business requirements and translate them into technical
requirements
● A knack for benchmarking and optimization
● Proficient understanding of code versioning tools, such as Git
Personality
● Requires excellent communication skills – written, verbal, and presentation.
● You should be a team player.
● You should be positive towards problem-solving, have a very structural thought
process to solve problems
● Interest to work in a high paced start-up environment with a large amount of learning.
● Good understanding of different frameworks, and be able to pick up new
technologies at ease.
● You should be agile enough to figure out a need for new technologies/frameworks
and learn new technology for better product performance
ABOUT US.
Established in 2009, Ashnik is a leading open-source solutions and consulting company in South East Asia and India, headquartered in Singapore. We enable digital transformation for large enterprises through our design, architecting, and solution skills. Over 100 large enterprises in the region have acknowledged our expertise in delivering solutions using key open-source technologies. Our offerings form critical part of Digital transformation, Big Data platform, Cloud and Web acceleration and IT modernization. We represent EDB, Pentaho, Docker, Couchbase, MongoDB, Elastic, NGINX, Sysdig, Redis Labs, Confluent, and HashiCorp as their key partners in the region. Our team members bring decades of experience in delivering confidence to enterprises in adopting open source software and are known for their thought leadership.
As a team culture, Ashnik is a family for its team members. Each member brings in different perspective, new ideas and diverse background. Yet we all together strive for one goal – to deliver best solutions to our customers using open source software. We passionately believe in the power of collaboration. Through an open platform of idea exchange, we create vibrant environment for growth and excellence.
THE POSITION
Ashnik is looking for talented and passionate people to be part of the team for an upcoming project at client location.
QUALIFICATION AND EXPERIENCE
- Preferably have a working experience of 4 Years and more , on production PostgreSQL DBs.
- Experience of working in a production support environment
- Engineering or Equivalent degree
- Passion for open-source technologies is desired
ADDITIONAL SKILLS
- Install & Configure PostgreSQL, Enterprise DB
- Technical capabilities PostgreSQL 9.x, 10.x, 11.x
- Server tuning
- Troubleshooting of Database issues
- Linux Shell Scripting
- Install, Configure and maintain Fail Over mechanism
- Backup - Restoration, Point in time database recovery
- A demonstrable ability to articulate and sell the benefits of modern platforms, software and technologies.
- A real passion for being curious and a continuous learner. You are someone that invests in yourself as much as you invest in your professional relationships.
RESPONSIBILITIES
- Monitoring database performance
- Optimizing Queries and handle escalations
- Analyse and assess the impact and risk of low to medium risk changes on high profile production databases
- Implement security features
- DR implementation and switch over
LOCATION: Bangalore
Experience: 4 yrs plus
Package: upto 12 LPA

REQUIREMENTS
- 5+ years of non-internship professional software development experience
- 1+ years of exposure to the architecture and design (design patterns, security, reliability and scaling) of new and current systems.
- Bachelors/Masters degree in computer science or other related fields
- Programming experience with at least one modern language such as Java or Python including object-oriented design
- A solid foundation in computer science, with strong competencies in data structures, algorithms, and software design.
- Proven ability to take initiative and dive into new areas of technology.
- Passion for learning, analysing technology trade-offs and shipping products.
- Knowledge on SQL, NOSQL databases and AWS deployments is a plus
- Strong sense of ownership, urgency and drive
- Ability to work well with people and be both highly self motivated and motivating
- Must be independent and comfortable in a fast paced, ambiguous and often multi-directional work environment
JOB RESPONSIBILITIES
- You will build cutting-edge secure and scalable systems by writing simple and efficient code.
- You will push your design and architecture limits for new product development.
- You will be the owner of your feature and work directly with product teams to drive customer impact.
- You will ensure that the systems you oversee are secure, fault-tolerant and are performing reliably at high volumes.
- Constantly look at possibilities to improve the overall functioning of the product.
- You possess a strong desire to learn and contribute solutions and ideas to a broad team
- You are independent and comfortable in a fast paced, ambiguous and often multi-directional work environments
- You will manage multiple tasks and use sound judgment when prioritizing
- You can collaborate with globally-located cross functional team in building customer-centric products
- You will analyze existing software implementations to identify areas of improvement and provide estimates for implementing new features
- Full stack experience is a plus
- Understanding of complete SDLC and Agile methodologies
- Domain expertise in Financial Services, Banking or Payments
- Code Quality –Code Hygiene (Coverage, Complexity, Usability)
- Collaboration –Strong peer review standards



- 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


The person will have the opportunity to design and build an **early stage, rapidly evolving platform from scratch** and carry out these primary responsibilities -
* Optimize components for maximum performance across multiple devices and browsers
* Write performant REST APIs for both internal and external consumption
* Build micro services and their deployment process
* Work with problems of scale, leveraging technologies that are distributed in nature.
* Perform code reviews
### Required qualifications and must have skills
* Excellent analytical and problem-solving skills
* Proven-deep-expertise with Python programming (2+ years of hands-on experience in Python and backend development)
* Building performant and scalable applications from scratch
* Experience in working with frameworks like Django, Flask, etc.
* Experience with building APIs and services using REST, SOAP, etc.
* Experience with any RDBMS and strong SQL knowledge
* Comfortable with Unix / Linux command line
* Object-oriented concepts & design patterns
* Sytem and database desinging skills
### Nice to have Skills
Knowledge of other programming languages beyond Python
Familiarity with managing infrastructure on AWS
Experience with working with/building data analytics pipleline
Familiarity with NoSQL databases
Good understanding of Docker and container platforms (Kubernetes)
Security-first architecture approach
Application benchmarking and optimization
### Interpersonal Attributes
You are driven by the impact your work creates
You can answer the why behind any technological choice you make
You can work independently as well as part of a team
You aren't afraid to roll up your sleeves: This role will evolve over time, and we'll want you to evolve with it!


