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Senior Python Engineer

IntecSelectLondon🇬🇧United KingdomPosted 4 Sept 2026

Why This Role Stands Out

You'll have the opportunity to build cutting-edge AI-powered microservices and data pipelines with a competitive daily rate of £450 (Outside IR35). This hybrid role is perfect for a pragmatic Python engineer with strong experience in FastAPI and microservices who thrives in dynamic, collaborative environments. Apply now to join an innovative technology partner and make a significant impact!

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
On Site
Location
London, United Kingdom
DockerFastAPIMicroservicesAWSNumPyGenerative AIGitGitHub ActionsHugging FaceJupyterKubernetesLESSPandasPostgreSQLPyTorchPythonStakeholder ManagementTensorFlowTerraformpytest

Job Description

Senior Python Engineer - AI & Microservices

£450 PD (Outside IR35) | 3-to-6-month Contract | 2 days onsite in London (Hybrid) | ASAP Start

Our trusted technology partner is developing innovative products and is looking for an experienced Senior Python Engineer/Back End Developer to join a fast-moving team.

You will develop Python microservices, scalable services, voice chat, and data pipelines, using AI technologies including ASR, TTS, and LLMs.

The ideal candidate will have strong Python skills, a pragmatic delivery-focused approach, and the ability to take ownership in a fast-paced, evolving environment.

Key Responsibilities:
  • Develop and maintain scalable Python services, microservices, voice chat, and data pipelines.
  • Work with the Tech Lead and wider team on architecture, technical decisions, and solution design.
  • Collaborate with product, data science, QA, design, and subject matter experts to deliver new features.
  • Ensure applications meet high standards for performance, scalability, reliability, and quality.
  • Contribute to code reviews, technical discussions, requirements, and user stories.
  • Take ownership of technical issues and support an end-to-end DevOps approach.
  • Mentor less experienced developers and share technical knowledge.
  • Stay current with developments in AI, cloud engineering, and language assessment.

Key Skills & Experience:
  • Strong commercial Python development experience, including object-oriented and functional programming.
  • Strong experience with FastAPI, Pydantic, SQLAlchemy, Alembic, Pytest, and type checking.
  • Experience with Pandas, NumPy, Jupyter, OpenTelemetry, Git/GitHub, GitHub Actions, and Docker.
  • Experience developing microservices and/or Lambda-based solutions.
  • Strong experience with PostgreSQL.
  • Experience working with AI/ML technologies, particularly ASR, TTS, LLMs, or related tooling, is highly desirable.
  • AWS, Terraform, Kubernetes, Hugging Face, PyTorch/TensorFlow, or Generative AI tooling would be advantageous.
  • Strong communication, stakeholder management, analytical, and problem-solving skills.
  • Comfortable taking ownership and working in a fast-paced, constantly evolving environment.

This is an excellent opportunity for a Senior Python Engineer/Back End Developer to work on a cutting-edge product using modern microservices, cloud, and AI technologies within a fast-paced, collaborative team.

One stage MS Teams Interview.

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