Senior Python Developer

Overview

You will be a part of Cactus Labs which is the R&D Cell of Cactus Communications. Cactus Labs is a high impact cell that works to solve complex technical and business problems that help keep us strategically competitive in the industry. We are a multi cultural team spread across multiple countries. We work in the domain of AI/ML especially with Generative AI (Text, Images, Audio), Language Understanding, Explainable AI, Big Data, Operations (MLOps, DevOps) etc.

As a core member of the team, you'll drive the solutioning and delivery of scalable systems. You’ll take ownership of critical projects/features and collaborate closely with product and research teams. If you thrive in ambiguity, enjoy solving high-impact problems, and are motivated by building systems that matter, this role is for you.

Responsibilities

• Design and architect systems that integrate with a wide array of AWS cloud services, ensuring high availability, scalability, and fault tolerance.
• Build applications that incorporate Large Language Models (LLMs) and other generative AI systems, leveraging APIs or fine-tuned models as needed.
• Own end-to-end technical delivery across projects — from design and development to deployment and monitoring.
• Collaborate cross-functionally with Product Managers, Researchers, ML Engineers, and other stakeholders to define and deliver impactful solutions.
• Contribute to technical discussions, architecture decisions, and long-term technology planning.
• Stay up to date with emerging tools, technologies, and development practices, and proactively introduce improvements to elevate engineering quality and team productivity.

Qualifications And Prerequisites

• 4+ years of hands-on software development experience with a strong command of Python.
• Demonstrated experience building applications powered by LLMs (e.g., OpenAI, Anthropic, Google, custom fine-tuned models).
• Practical experience with AWS services (e.g., Lambda, EC2, S3, DynamoDB, SQS, API Gateway, etc.).
• Strong understanding of RESTful API design, backend systems, and service integrations.
• Experience with Docker or Kubernetes in production environments.
• Solid grasp of microservices architecture and distributed systems.
• Comfortable working in fast-paced, ambiguous environments with shifting priorities.
• Strong problem-solving skills and attention to detail.
• Excellent communication and collaboration skills, with experience working in remote and cross-functional teams.

Application Process

For this role, please refer to the following: -

• Technical round with a panel of 2 interviewers for 1 hour (Virtual)
• Techno-functional round for 1 hour (Virtual)
• HR Business partner round for 45 minutes