
Job definition
Working at CAST R&D means being an important part of a highly-talented, fast-paced, multi-cultural and Agile team based in Paris (France) and Bangalore (India). The team builds a sophisticated source code analysis platform leveraging parsing, control flow, data flow and others mechanisms to fully understand the inner structure of the complex IT Systems developed and used by the Fortune 500 companies.
You, working as individual contributor as part of team, will contribute to the core part of our platform: source code analyzers. You will contribute to the evolution of our technology to support the latest evolution of languages and frameworks. You will have the opportunity to work on the different parts of the analysis chain from parsing to developing new quality rules notably the ones related to the emerging CISQ standard. Python or C++ will be your main languages.
About your Team
We develop source code analyzers which are plugins of our platform CAST AIP.
Close to customer needs, we deliver incrementally features and fixes according to priorities. Using Lean approach and eXtreme Programming:
• We write user documentation
• We thank our testers to find bugs which enable us to add more unit test coverage.
Profile
The candidate should have a passion for technology and a flexible, creative approach to problem solving.
• Must have at least 4 years of experience
• Must have expertise in Python or C++ development
• Must be pragmatic
• Must have excellent written, oral and telephone communication skills in English.
• Must have strong analytical and logical skills
• Must accept to follow a framework of rules on how to write/design static analyzers
• Hands on TDD addict: writing unit tests.
• Must accept to do a lot of maintenance
• Eager to learn new languages and frameworks at “high” level

About Cast Software
About
Connect with the team
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Intern (GenAI - Python) - 3 Months Unpaid Internship
Job Title: GenAI Intern (Python) - 3 Months Internship (Unpaid)
Location: Ahmedabad (On-Site)
Duration: 3 Months
Stipend: Unpaid Internship
Company: Softcolon Technologies
About the Internship:
Softcolon Technologies is seeking a dedicated GenAI Intern who is eager to delve into real-world AI applications. This internship provides hands-on experience in Generative AI development, focusing on RAG systems and AI Agents. It is an ideal opportunity for individuals looking to enhance their skills in Python-based AI development through practical project involvement.
Eligibility:
- Freshers or currently pursuing BE (IT/CE) or related field
- Strong interest in Generative AI and real-world AI product development
Required Skills (Must Have):
- Basic knowledge of Python
- Basic understanding of Python frameworks like FastAPI and basic Django
- Familiarity with APIs and JSON
- Submission of resume, GitHub Profile/Project Portfolio, and any AI/Python project links
What You Will Learn (Internship Goals):
You will gain hands-on experience in:
- Fundamentals of Generative AI (GenAI)
- Building RAG (Retrieval-Augmented Generation) applications
- Working with Vector Databases and embeddings
- Creating AI Agents using Python
- Integrating LLMs such as OpenAI (GPT models), Claude, Gemini
- Prompt Engineering + AI workflow automation
- Building production-ready APIs using FastAPI
Responsibilities:
- Assist in developing GenAI-based applications using Python
- Support RAG pipeline implementation (embedding + search + response)
- Work on API integrations with OpenAI/Claude/Gemini
- Assist in building backend services using FastAPI
- Maintain project documentation and GitHub updates
- Collaborate with team members for tasks and daily progress updates
Selection Process:
- Resume + GitHub portfolio screening
- Short technical discussion (Python + basics of APIs)
- Final selection by the team
Why Join Us?
- Practical experience in GenAI through real projects
- Mentorship from experienced developers
- Opportunity to work on portfolio-level projects
- Certificate + recommendation (based on performance)
- Potential for a paid role post-internship (based on performance)
How to Apply:
Share your resume and GitHub portfolio link via:
Job Title : Python Django Developer
Experience : 3+ Years
Location : Gurgaon
Working Days : 6 Days (Monday to Saturday)
Job Summary :
We are looking for a skilled Python Django Developer with strong foundational knowledge in backend development, data structures, and operating system concepts.
The ideal candidate should have experience in Django and PostgreSQL, along with excellent logical thinking and multithreading knowledge.
Technical Skills : Python, Django (or Flask), PostgreSQL/MySQL, SQL & NoSQL ORM, REST API development, JSON/XML, strong knowledge of data structures, multithreading, and OS concepts.
Key Responsibilities :
- Write efficient, reusable, testable, and scalable code using the Django framework.
- Develop backend components, server-side logic, and statistical models.
- Design and implement high-availability, low-latency applications with robust data protection and security.
- Contribute to the development of highly responsive web applications.
- Collaborate with cross-functional teams on system design and integration.
Mandatory Skills :
- Strong programming skills in Python and Django (or similar frameworks like Flask).
- Proficiency with PostgreSQL / MySQL and experience in writing complex queries.
- Strong understanding of SQL and NoSQL ORM.
- Solid grasp of data structures, multithreading, and operating system concepts.
- Experience with RESTful API development and implementation of API security.
- Knowledge of JSON/XML and their use in data exchange.
Good-to-Have Skills :
- Experience with Redis, MQTT, and message queues like RabbitMQ or Kafka
- Understanding of microservice architecture and third-party API integrations (e.g., payment gateways, SMS/email APIs)
- Familiarity with MongoDB and other NoSQL databases
- Exposure to data science libraries such as Pandas, NumPy, Scikit-learn
- Knowledge in building and integrating statistical learning models.
Job Title : Python Developer (Immediate Joiner)
Experience Required : 3+ Years
Employment Type : Full-time
Location : Gurugram, India (Onsite)
Working Days : 6 Days (5 Days WFO + 1 Day WFH)
Job Summary :
We are seeking a talented and experienced Python Developer with a strong background in Django and a proven ability to build scalable, secure, and high-performance web applications. The ideal candidate will have hands-on experience with RabbitMQ, Redis, Celery, and PostgreSQL, and will play a key role in developing and maintaining robust backend systems. This is an onsite opportunity for immediate joiners.
Mandatory Skills : Python, Django, RabbitMQ, Redis, Celery, PostgreSQL, RESTful APIs, Docker.
Key Responsibilities :
- Design, develop, and maintain Django-based web applications and APIs.
- Implement asynchronous task handling using RabbitMQ and Celery.
- Optimize application performance using Redis for caching and session storage.
- Manage database operations, including schema design and query optimization, using PostgreSQL.
- Collaborate with front-end developers, DevOps teams, and stakeholders to deliver full-featured solutions.
- Write clean, modular, and well-documented code aligned with industry best practices.
- Troubleshoot, debug, and resolve issues across the application stack.
- Participate in architecture discussions, code reviews, and sprint planning.
- Ensure the scalability, performance, and security of backend services.
Required Technical Skills :
- Minimum 3 Years of experience in Python development.
- Strong hands-on experience with the Django framework.
- Proficiency in RabbitMQ for message brokering.
- Practical experience with Redis for caching and session management.
- Experience using Celery for background job/task queue management.
- Solid knowledge of PostgreSQL (database design, indexing, and optimization).
- Understanding of RESTful API development and integration.
- Familiarity with Docker and containerization.
Preferred Skills :
- Exposure to CI/CD tools and pipelines.
- Experience working with cloud platforms such as AWS or GCP.
- Knowledge of Django ORM optimization techniques.
- Basic familiarity with front-end technologies like HTML, CSS, and JavaScript.
Soft Skills :
- Strong analytical and problem-solving capabilities.
- Effective communication and interpersonal skills.
- Ability to thrive in an agile, fast-paced development environment.
We are looking for a Technical Lead - GenAI with a strong foundation in Python, Data Analytics, Data Science or Data Engineering, system design, and practical experience in building and deploying Agentic Generative AI systems. The ideal candidate is passionate about solving complex problems using LLMs, understands the architecture of modern AI agent frameworks like LangChain/LangGraph, and can deliver scalable, cloud-native back-end services with a GenAI focus.
Key Responsibilities :
- Design and implement robust, scalable back-end systems for GenAI agent-based platforms.
- Work closely with AI researchers and front-end teams to integrate LLMs and agentic workflows into production services.
- Develop and maintain services using Python (FastAPI/Django/Flask), with best practices in modularity and performance.
- Leverage and extend frameworks like LangChain, LangGraph, and similar to orchestrate tool-augmented AI agents.
- Design and deploy systems in Azure Cloud, including usage of serverless functions, Kubernetes, and scalable data services.
- Build and maintain event-driven / streaming architectures using Kafka, Event Hubs, or other messaging frameworks.
- Implement inter-service communication using gRPC and REST.
- Contribute to architectural discussions, especially around distributed systems, data flow, and fault tolerance.
Required Skills & Qualifications :
- Strong hands-on back-end development experience in Python along with Data Analytics or Data Science.
- Strong track record on platforms like LeetCode or in real-world algorithmic/system problem-solving.
- Deep knowledge of at least one Python web framework (e.g., FastAPI, Flask, Django).
- Solid understanding of LangChain, LangGraph, or equivalent LLM agent orchestration tools.
- 2+ years of hands-on experience in Generative AI systems and LLM-based platforms.
- Proven experience with system architecture, distributed systems, and microservices.
- Strong familiarity with Any Cloud infrastructure and deployment practices.
- Should know about any Data Engineering or Analytics expertise (Preferred) e.g. Azure Data Factory, Snowflake, Databricks, ETL tools Talend, Informatica or Power BI, Tableau, Data modelling, Datawarehouse development.
We are seeking an experienced Senior Backend Engineer to join our passionate team. If you have a strong background in backend development, a track record of delivering scalable and reliable solutions, and are eager to contribute to complex projects, we would love to hear from you.
Responsibilities:
- Design and develop robust, high-performance backend solutions using Python and related technologies.
- Lead the architecture and design discussions for major backend components and services.
- Collaborate closely with cross-functional teams to gather and analyze software requirements.
- Mentor and guide junior and mid-level engineers, fostering their technical growth.
- Review code and provide constructive feedback to ensure code quality and adherence to best practices.
- Identify and address performance bottlenecks, scalability challenges, and technical issues.
- Participate in sprint planning, task estimation, and agile development processes.
- Keep up-to-date with industry trends, tools, and best practices to continuously improve our backend systems.
- Drive the adoption of coding standards, design patterns, and engineering best practices.
- Collaborate with frontend engineers to ensure seamless integration between frontend and backend components.
Requirements:
- Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).
- Minimum of 4 years of professional experience in backend development.
- Strong proficiency in Python and backend frameworks like Django and Flask.
- In-depth knowledge of database systems, both relational (MySQL) and NoSQL (MongoDB, etc. ).
- Proven track record of designing and developing scalable and maintainable backend services.
- Experience with RESTful API design and best practices.
- Solid understanding of software architecture, design principles, and software development lifecycle.
- Previous experience leading or mentoring engineers is a strong plus.
- Strong problem-solving skills and a proactive attitude towards challenges.
- Excellent communication skills, both verbal and written.
- Familiarity with cloud platforms (e. g., AWS, Azure, GCP) and containerization (Docker) is a plus.
Enguru is India’s leading destination for online learning English, with over 4 crore learners who have used our products. enguru caters to multiple audiences, including adult and children learners looking to learn English through live group and/or personal classes.
About the role
You will get to lead backend development across the enguru product suite, including our spoken English app for adults and spoken English app for kids amongst others. You will work closely with other engineers and product managers to help optimise the architecture across our apps.
Desired Experiences & Skillsets
- Experience with Python/Django and worked with &
- End-to-end expertise in web application
- Strong understanding of structured & unstructured databases
- Proficient with JS Frameworks
- Dev-ops experience around handling deployments &
- Led and/or collaborated closely with team members
Proficiency with tools such as
- Python
- Django
- Rest APIs (and RESTful API principles)
- Angular
- React
- mongoDB
- AWS
- Docker
Senior Software Engineer - Payments
MishiPay
Competitive salary, bonus and potential share options
Bangalore
Please read our full advert before applying. You MUST have payments experience.
About Mishipay:
MishiPay (https://mishipay.com/" target="_blank">https://mishipay.com/) was founded in 2015 by Mustafa Khanwala (https://t.sidekickopen87.com/s3t/c/5/f18dQhb0S7kv8cW0B4W4V2M7g2zGCwVW8Jbw_83My4KPW4XXYRz3MqbyWW4Xq_Cl16gGDkf34lRCG01?te=W3R5hFj4cm2zwW4mKLS-3ZWVWBW3K2-zv1JxwY5W1Lyz993_-rybW3z9CQ13QZn51f3zd5DJ04&si=6558133869871104&pi=23656670-1dc8-41be-f0fe-f4c7fec4c64c" target="_blank">/in) bringing the best of the online checkout experience to physical stores.
We do this with our Scan, Pay and Go experience. Using our native apps on Android or iOS, or our web app available on Chrome or Safari, customers scan the products they wish to buy in store using their own phone and pay instantly. This eradicates the need to wait in line or touch store hardware.
As the world’s leading Scan and Go provider, we work with 30+ brands across 15 countries, including names like MUJI, Eroski, Flying Tiger Copenhagen, Spar, Londis and many others. The work is challenging, hard and long and requires you to be on top of your game but if the adventure and journey excite you then this is the place for you. We want to make sure that in exchange for this commitment from our team, we offer them the best package possible in terms of options, salary and bonus linked to the success of the business. You’ll also quickly see the impact of your work as we develop our products and customers
Requirements
We are looking for a Backend Engineer who possesses a passion for pushing mobile technologies to the limits and will work with our team of talented engineers to design and build the next generation of our mobile applications. You’ll play a key part in the development of our products, help to evolve and streamline our tech stack to suit our needs as we grow, and you’ll enjoy working in an environment surrounded by like-minded inspirational individuals.
Ideally we would love you to have Python, but we will also look at Java or other languages. It's essential you have worked as a Backend Engineer in a Payments domain.
Qualifications:
- Ideally, deep expertise with Python programming language and Django + DRF framework to build backend services
- Experience with Node.js and Kafka
- Substantial experience in building complex and scalable solutions using SQL databases
- Hands-on experience of database modelling for any NoSQL databases like MongoDB / Cassandra / DynamoDB or other
- Experience with full backend development life cycle in any programming language on a Linux platform
- Comprehensive operational experience including, optimizations & deployments with Kubernetes
- Experience leading multi-engineer projects and mentoring junior engineers
- Strong object oriented design skills, ability to apply design patterns, and an uncanny ability to design intuitive module and class-level interfaces
- BTech, MTech, or higher in Computer Science or related technical discipline (or equivalent)
You will:
- Take ownership of a functional area from product conception to delivery
- Contribute to engineering requirement documents (ERDs) by defining work breakdown, estimating tasks duration & setting milestones
- Take non-functional requirements (Reliability & Availability, Scale, horizontal scalability) and Tech stack decisions
- Participate in daily agile team stand-ups
- Coach and mentor junior team members
- Own code base & documentation quality
- Actively work to clear maintenance debt as we continue improving our tech
Benefits
Why MishiPay?
You’ll work with an inspirational multi-cultural team, based in our central London HQ, the US and Bangalore, who are redefining the retail industry globally. We offer a tight-knit, collaborative and exciting work environment, coupled with the opportunity to see the apps we develop live in action within some of the world’s largest retailers, impacting the lives of millions of shoppers. You’ll also get:
- Yearly Bonuses and Share Options
- Learning and Development Monthly Allowance
- A chance to be recognised in one of our two monthly award schemes (and win various prizes)
- A new MacBook
- Pitch Training
- Online Fitness Sessions
- Quarterly team-building and fun events for our London office and free lunches in Bangalore!
Role Summary: Back-end Developer who would contribute towards building a highly flexible and scalable Back- end by bringing deep core technology expertise.
Job Description:
- Develop modules keeping micro services architecture philosophies in check. - Implement and/or oversee implementation of different modules as part of an integrated development team. - Drive evolution of application performance. - Ensure project scalability by having good project architecture
Skill Requirements:
- Strong Node.js. - Strong database technology skillsets, namely MongoDB, MySQL
- Should have experience of using Rabbit MQ.
- Python (Django) skills are a plus. - A skilled and pragmatic approach.
- Experience with user-centred design, test-driven development, iterative/incremental and agile practices. - Experience with AWS deployment a definite plus.
Individual applying to the role should ideally have the following attributes.
-Passionate about back-end Development and continually follow the platform & innovations
-Strong and innovative approach to problem solving and finding solutions
- Excellent communicator (written and verbal, formal and informal)
- Flexible and proactive/self-motivated working style with strong personal ownership of problem resolution
- Ability to multi-task under pressure and work independently with minimal supervision.
- Ability to prioritize when under pressure.
- At least 2-5 years of working experience in web services, preferably in Python
- Should have built and released APIs in production
- Experience working with RDBMS and NoSQL databases
- Designing thoughtful, extensible data models
- Knowledge of identifying, defining and building micro-services
- Working knowledge of GCS, AWS, Azure or any other cloud provider
- Aggressive problem diagnosis and creative problem-solving skills
- Good communication skills - written and spoken











