
Company is a remote-first team, looking to scale our Open Source Feature
Flagging, Remote Config and A/B Testing product. With both SaaS and on-premises customers, we are investing into our globally distributed, low latency API and making it simple for customers to deploy on their own infrastructure via Kubernetes and OpenShift.
We are looking for a Lead Server-Side Engineer, who also enjoys working on dev-ops, infrastructure and orchestration, and can help build out our existing API and infrastructure.
We are a really small team right now, and this is our first technical hire outside of the founders, so it’s a great opportunity to be part of something that is looking to scale quickly!
We are looking for someone who loves working with:
- Python. Django Rest Framework experience would be great, but not essential! We prioritise
- quality over quantity.
- Postgres with InfluxDB, Oracle, MySQL and Redis experience a plus.
- Docker, Kubernetes, Helm, OpenShift and associated tooling.
- AWS, especially ECS, Lambda, RDS and DynamoDB. Performance and uptime are super
- important to us.
- The challenge of scaling a global, distributed API to 10,000+ requests per second.
- We have SDKs in a bunch of languages, so the more polyglot you are the better.
- If you like writing JS and React that would be awesome too.
We are a 100% remote team, currently based on the West Coast US and in Europe

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About Us:
Tradelab Technologies Pvt Ltd is not for those seeking comfort—we are for those hungry to make a mark in the trading and fintech industry. If you are looking for just another backend role, this isn’t it. We want risk-takers, relentless learners, and those who find joy in pushing their limits
every day. If you thrive in high-stakes environments and have a deep passion for performance driven backend systems, we want you.
What You Will Do:
• We’re looking for a Backend Developer (Python) with a strong foundation in backend technologies and a deep interest in scalable, low-latency systems.
• You should have 3–4 years of experience in Python-based development and be eager to solve complex performance and scalability challenges in trading and fintech applications.
• You measure success by your own growth, not external validation.
• You thrive on challenges, not on perks or financial rewards.
• Taking calculated risks excites you—you’re here to build, break, and learn.
• You don’t clock in for a paycheck; you clock in to outperform yourself in a high-frequency trading environment.
• You understand the stakes—milliseconds can make or break trades, and precision is everything.
What We Expect:
• Develop and maintain scalable backend systems using Python.
• Design and implement REST APIs and socket-based communication.
• Optimize code for speed, performance, and reliability.
• Collaborate with frontend teams to integrate server-side logic.
• Work with RabbitMQ, Kafka, Redis, and Elasticsearch for robust backend design.
• Build fault-tolerant, multi-producer/consumer systems.
Must-Have Skills:
• 3–4 years of experience in Python and backend development.
• Strong understanding of REST APIs, sockets, and network protocols (TCP/UDP/HTTP).
• Experience with RabbitMQ/Kafka, SQL & NoSQL databases, Redis, and Elasticsearch.
• Bachelor’s degree in Computer Science or related field.
Nice-to-Have Skills:
• Past experience in fintech, trading systems, or algorithmic trading.
• Experience with GoLang, C/C++, Erlang, or Elixir.
• Exposure to trading, fintech, or low-latency systems.
• Familiarity with microservices and CI/CD pipelines.
JD-Backend Developer
Job Location: Andheri, Mumbai
Job Summary:
As a Python based Backend developer, you shall be responsible for software development of greenfield projects -an platform
for automated testing using Python as a main language. You will work with a team of developers, collaborating on projects to
create efficient and effective software solutions that meet the needs of clients or end-users in the testing domain. You will
need to have a strong understanding of Python & other languages with knowledge of test automation frameworks and tools/
libraries.
Responsibilities:
• Develop and maintain an automated testing platform using Python programming language.
• Design and implement software solutions that automate the testing process.
• Collaborate with other developers and cross-functional teams to deliver high-quality software solutions.
• Participate in code reviews, debugging, and troubleshooting to improve software quality.
• Stay up-to-date with the latest developments in Python and JavaScript programming language and related
testing frameworks and tools.
• Ensure software is delivered on-time and meets or exceeds customer expectations.
• Develop and maintain documentation related to software development processes and projects.
Requirements:
• Bachelor's degree in Computer Science, Software Engineering or a related field.
• Proven experience as a Back-end Developer.
• Strong understanding of Python & other programming language along with its ecosystem (libraries, frameworks,
tools, etc.).
• Excellent written and verbal communication skills.
Preferences:
• Preference shall be given to local candidates
• Preference shall be given to candidates having experience in greenfield software development projects related
to automated testing.
Key Responsibilities
- Design and implement scalable, maintainable, and efficient Python applications
- Lead technical projects from conception to deployment
- Collaborate with cross-functional teams to define and implement new features
- Write clean, testable code with appropriate documentation
- Conduct code reviews and provide constructive feedback to team members
- Mentor junior developers and contribute to their professional growth
- Participate in technical architecture discussions and decision-making
- Troubleshoot and debug complex software issues
- Contribute to continuous improvement of development practices and processes
- Design and implement AI/ML solutions using LLMs and related technologies
- Optimize and maintain AI model deployment pipelines
Required Qualifications
- Bachelor's degree in Computer Science, Software Engineering, or related field
- 5+ years of professional software development experience
- Strong proficiency in Python and its ecosystem (Django/Flask, FastAPI)
- Experience with SQL and NoSQL databases
- Solid understanding of software design patterns and principles
- Experience with version control systems (Git)
- Strong knowledge of RESTful APIs and microservices architecture
- Proficiency in writing unit tests and understanding of TDD practices
- Experience with CI/CD pipelines and deployment automation
- Strong problem-solving and analytical skills
AI/ML Technical Skills
- Experience with LLM frameworks (LangChain, LlamaIndex)
- Knowledge of working with large language models (GPT, Claude, etc.)
- Understanding of prompt engineering and LLM fine-tuning concepts
- Experience with vector databases (Pinecone, Weaviate, or similar)
- Familiarity with AI model deployment and serving (BentoML, Ray Serve)
- Experience with machine learning libraries (PyTorch, TensorFlow, or similar)
- Knowledge of AI/ML observability and monitoring tools
- Understanding of AI safety practices and responsible AI development
- Experience with embedding models and semantic search implementations
- Familiarity with AI application development patterns and best practices
About the job
The Role:
We are looking for an enthusiastic Technology Lead (Python or Node), who adopts a hands-on approach and loves to build scalable, distributed and large web / mobile products. You would be responsible for designing the architecture, reviewing the code, building the technology and deploying web/mobile applications.
Responsibilities:
- Own the product development from scratch.
- Design and implementation of low-latency, high-availability, and performant applications.
- Architect scalable software solutions and mentor a team of high performing developers.
- Participate in code reviews, design reviews, SCRUM ceremonies, and troubleshoot to ensure uptime for live systems etc.
Requirements:
- Bachelor's degree in a technology-related field from a premier college.
- Prior 4+ years of experience in back-end development (Python/ Golang) in a start-up or a dynamic work environment.
- Good exposure in writing and optimizing SQL for high-performance systems.
- Understanding of asyncio and eventloop/ uvloop concepts. Knowledge of frameworks such as Quart/ Fastapi/ Starlette is preferred.
- Knowledge of AWS; Caching technologies like Redis, Memcache; ELK; mySQL Databases, etc.
- Strong understanding of System Design, Microservice Architecture, Kafka, Pub/Sub, Message queues, and in-memory data stores etc.
- Customer oriented, responsive to changes, and able to multi-task in a fast-paced environment.
We offer an innovative, fast paced, and entrepreneurial work environment where you’ll be at the centre of leading change by leveraging technology and creating boundless impact in the FinTech ecosystem.
Must have:
- 8+ years of experience with a significant focus on developing, deploying & supporting AI solutions in production environments.
- Proven experience in building enterprise software products for B2B businesses, particularly in the supply chain domain.
- Good understanding of Generics, OOPs concepts & Design Patterns
- Solid engineering and coding skills. Ability to write high-performance production quality code in Python
- Proficiency with ML libraries and frameworks (e.g., Pandas, TensorFlow, PyTorch, scikit-learn).
- Strong expertise in time series forecasting using stat, ML, DL and foundation models
- Experience of working on processing time series data employing techniques such as decomposition, clustering, outlier detection & treatment
- Exposure to generative AI models and agent architectures on platforms such as AWS Bedrock, Crew AI, Mosaic/Databricks, Azure
- Experience of working with modern data architectures, including data lakes and data warehouses, having leveraged one or more of the frameworks such as Airbyte, Airflow, Dagster, AWS Glue, Snowflake,, DBT
- Hands-on experience with cloud platforms (e.g., AWS, Azure, GCP) and deploying ML models in cloud environments.
- Excellent problem-solving skills and the ability to work independently as well as in a collaborative team environment.
- Effective communication skills, with the ability to convey complex technical concepts to non-technical stakeholders
Good To Have:
- Experience with MLOps tools and practices for continuous integration and deployment of ML models.
- Has familiarity with deploying applications on Kubernetes
- Knowledge of supply chain management principles and challenges.
- A Master's or Ph.D. in Computer Science, Machine Learning, Data Science, or a related field is preferred
As an employee of our company, you will collaborate with each department to create and deploy disruptive products. Come work at a growing company that offers great benefits with opportunities to move forward and learn alongside accomplished leaders. We're seeking an experienced and outstanding member of staff.
This position is both creative and rigorous by nature you need to think outside the box. We expect the candidate to be proactive and have a "get it done" spirit. To be successful, you will have solid solving problem skills.
Responsibilities
- Design & Develop Odoo Apps
- Translate requirements into clean and efficient code
- Analyze, diagnose and resolve errors relate to the applications.
Must Have
- Bachelor's Degree In Computers/MCA
- Object-oriented programming language
- Basics of Python/HTML/CSS/JS
- Highly creative and autonomous
Nice To Have
- Python/Javascript Knowledge
- Linux, Github
- Contribution in open source projects
- Strong communication skills
What's great in the job?
- Great team of smart people, in a friendly and open culture
- No dumb managers, no stupid tools to use, no rigid working hours
- No waste of time in enterprise processes, real responsibilities and autonomy
- Expand your knowledge of various business industries
- Create content that will help our users on a daily basis
- Real responsibilities and challenges in a fast evolving company
We are looking for an experienced full-stack engineer to implement both back-end and front-end
software solutions to serve both internal and external customers. The position entails working in
an agile team to develop Java- and React-based projects that support our system.
● 1 - 4 yrs of Odoo development experience.
● Design, implement and test full-stack solutions using Java, Spring and React
● Design robust spring system that can support 2-5mil users.
● Work alongside other team members to integrate various components into finished
product
● Work closely with product owner to create stories
● Continuously create new and interactive features that would help to improve user
experience and user engagement.
● Assist with troubleshooting of issues as needed
● Participate in the design and architecture of software solutions
● Assist in developing and maintaining continuous integration pipelines
Card91 is simplifying business payments by providing a plug and play issuance infrastructure
to businesses for domestic and cross-border payments. Our full stack platform enables
businesses to gain control and visibility into their payment flows, controlling the entire payment
lifecycle from onboarding, to issuance, to transaction and data reconciliation. The platform
aims to provide holistic solutions around payment issuance and distribution management. Our
deep focus in payments will help us in bringing new issuance formats as well as technologies
to businesses.
The company has been founded by seasoned technology entrepreneurs who have founded
successful companies like Myntra, Mastiff Technologies earlier. Headquartered in Bangalore,
with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space
in the issuer-processor segment.
Position: Python Developer
We are building our core team which will be responsible for a highly scalable, always available
microservices based backend for payment processing. The developer will be involved with the
design, implementation, and execution from day one and build a robust, secure, and scalable
payment processing engine.
Roles & Responsibilities
● Individual Contributors talking full ownership of the micro services
● Design and Implement the micro services from scratch
● Be creative and always try to evaluate new strategies to execute faster
● Team player and always eager to teach new team members about the code,
● structure and design
● Not afraid of bringing new designs (even languages) which will make the system
execute faster
Experience and Qualifications
● Having 2 - 5 years of experience
● Degree from a premier institute like IIT/NIT/BITS is desirable
● A strong expertise in Python framework (like Django, Flask or Pyramid)
● Experience in creating APIs with design standards, patterns and best-practices
● Knowledge of object-relational mapping (ORM)
● GoLang experience is a big plus
● Experience building web services in REST
● knowledge and hands-on experience in API security standards and implementation
(Oauth, OpenId)
● Experience in developing highly scalable and reliable web applications, including
integration with internal and external systems.
● Experience in databases like MySQL and NoSQL db like Cassandra, etc.
● Experience with Cloud computing AWS & Microservices architecture
● Exposure to front end technologies like VueJS, ReactJS etc is an advantage
● Docker & Kubernetes experience is a big plus
● Previous experience of Fintech company is an added advantage
What’s on offer
● Vibrant, fun and rewarding culture that nurtures and promotes excellence
● Opportunities to learn and interact with payment industry leaders
● Competitive remuneration, group health insurance & PF
● Other office perks of being part of an early-stage startup
Location: HSR Layout, Bangalore
- Hands-on experience in backend programming languages.
- Experience in Python 3.X & Django is a must. Knowledge of .NET, Java, PHP is an added advantage.
- Hands-on experience in front-end technologies like Angular, jQuery, JavaScript, HTML, CSS, SCSS, etc.
- Experience with leading technical teams and acting as a technical mentor.
- Experience in client communication & reporting to the client-side management team.
- Experience in AWS is an added advantage.
- Writing efficient, reusable, testable, and scalable code
- Understanding, analyzing, and implementing – Business needs, feature modification requests, conversion into software components
- Integration of user-oriented elements into different applications, data storage solutions
- Developing – Backend components to enhance performance and receptiveness, server-side logic, and platform, statistical learning models, highly responsive web applications
- Designing and implementing – High availability and low latency applications, data protection and security features
- Performance tuning and automation of application
- Working with Python libraries like Pandas, NumPy, etc.
- Creating predictive models for AI and ML-based features
- Keeping abreast with the latest technology and trends
- Fine-tune and develop AI/ML-based algorithms based on results
Technical Skills-
Good proficiency in,
- Python frameworks like Django, etc.
- Web frameworks and RESTful APIs
- Core Python fundamentals and programming
- Code packaging, release, and deployment
- Database knowledge
- Circles, conditional and control statements
- Object-relational mapping
- Code versioning tools like Git, Bitbucket
Fundamental understanding of,
- Front-end technologies like JS, CSS3 and HTML5
- AI, ML, Deep Learning, Version Control, Neural networking
- Data visualization, statistics, data analytics
- Design principles that are executable for a scalable app
- Creating predictive models
- Libraries like Tensorflow, Scikit-learn, etc
- Multi-process architecture
- Basic knowledge about Object Relational Mapper libraries
- Ability to integrate databases and various data sources into a unified system
- Basic knowledge about Object Relational Mapper libraries
- Ability to integrate databases and various data sources into a unified system









