Senior Python Developer

Cactus Communications

Jaipur

On-site

INR 1,000,000 - 1,500,000

Full time

14 days+

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Job summary

A software development leader is seeking a skilled individual to join their R&D team. This role involves designing scalable systems using AWS and building applications with Large Language Models. Ideal candidates will have over 4 years of software development experience, command of Python, and a strong grasp of microservices architecture. The job offers an opportunity to work in a dynamic, multicultural environment on complex problems that matter, contributing to cutting-edge AI/ML solutions.

Qualifications

4+ years of hands-on software development experience.
Experience building applications powered by LLMs.
Practical experience with AWS services.
Strong understanding of RESTful API design.
Experience with Docker or Kubernetes.
Solid grasp of microservices architecture.
Strong problem-solving skills.
Excellent communication skills.

Responsibilities

Design and architect systems with AWS cloud services.
Build applications using Large Language Models.
Own end-to-end technical delivery of projects.
Collaborate with cross-functional teams.
Contribute to technical discussions and long-term planning.
Stay updated with emerging tools and technologies.

Skills

Software development

Python

Large Language Models

AWS services

RESTful API design

Docker

Kubernetes

Microservices architecture

Problem-solving

Collaboration

Job description

You will be part of Cactus Labs, the R&D cell of Cactus Communications. Cactus Labs is a high‑impact team that works to solve complex technical and business problems, helping keep us strategically competitive. We are a multicultural team spread across multiple countries, working in AI/ML domains such as Generative AI (Text, Images, Audio), Language Understanding, Explainable AI, Big Data, and Operations (MLOps, DevOps).

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