Senior Python Engineer: AI‑Driven FinTech SaaS on AWS

TalentHawk; Greater London; Hybrid; GBP 48,000 - 80,000; Part time

Job summary

TalentHawk is seeking a Senior Python Engineer to design and scale Python microservices within a fintech SaaS context. The role emphasizes AWS operations, AI tooling integration, and collaboration with product teams in a 2‑day‑per‑week London hybrid setup.

You will mentor junior engineers, drive end‑to‑end ownership, and shape the architecture of multi‑tenant SaaS systems using modern AI assistant tools to accelerate delivery and maintain high code quality.

Qualifications

• Senior Python Engineer with proven B2B SaaS experience.
• Experience building scalable microservices and REST APIs.
• Experience AWS services and IaC (Terraform).
• Ability to mentor junior engineers and take end-to-end ownership.

Responsibilities

• SaaS Design & Build: design, implement, and scale Python microservices.
• AI Productivity: adopt AI engineering tools and automations.
• Cloud Operations: manage AWS infra with observability and security.
• Product Collaboration: translate data requirements to engineering tasks.
• Mentorship: support growth of junior engineers.

Skills

Leadership

End-to-end ownership

Mentorship

Tools

Python

AWS

Terraform

PostgreSQL

REST APIs

SaaS Architecture

TypeScript

LangChain

Job description

TalentHawk is seeking a Senior Python Engineer to design and scale Python microservices within a fintech SaaS context. The role emphasizes AWS operations, AI tooling integration, and collaboration with product teams in a 2‑day‑per‑week London hybrid setup.

You will mentor junior engineers, drive end‑to‑end ownership, and shape the architecture of multi‑tenant SaaS systems using modern AI assistant tools to accelerate delivery and maintain high code quality.