Senior Python Engineer

Intec Select Ltd; City Of London; Hybrid; GBP 71,000 - 96,000; Part time

Job summary

Intec Select Ltd is seeking a Senior Python Engineer to design and implement high‑quality microservices and data pipelines using Python, FastAPI and AI tooling. The role requires collaboration with product, data science and QA teams in a fast-paced environment.

You will own architecture decisions, mentor peers, and contribute to end‑to‑end DevOps while delivering scalable, reliable services in a hybrid London setting. Immediate start and an interview via MS Teams are expected.

Qualifications

• Strong commercial Python development experience with OO and functional styles.
• Experience building microservices and cloud-based backends.

Responsibilities

• Develop and maintain scalable Python services and data pipelines.

Skills

Python

OO & FP

Communication

Problem solving

Tools

FastAPI

Pydantic

SQLAlchemy

Alembic

Pytest

Type checking

Pandas

NumPy

Jupyter

Git/GitHub

GitHub Actions

Docker

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