Principal Software Architect (Infrastructure Platform) - Up to £300k Base + Bonus

Hunter Bond; Greater London; Hybrid; GBP 180,000 - 300,000; Full time

Job summary

Elite FinTech Firm in London is seeking a Principal Software Architect to design and build a centralised infrastructure platform that models the estate and its components. You will own the architecture, develop APIs, and drive automation across physical hardware, cloud, and networks.

Initially hands-on, you will later build and lead a team of 4–6 engineers, working with cutting-edge infrastructure and data models to enable fully provisioned services.

Qualifications

• Experience at Staff or Principal level in software engineering.
• Strong Python programming and production-grade software design.
• Excellent data modeling and schema design for infrastructure components.
• Experience with CMDBs or infrastructure inventory systems.
• Broad understanding of compute, networking, storage and cloud.

Responsibilities

• Designing and building a centralised infrastructure platform / CMDB to model the estate and relationships between components.
• Developing APIs and software to connect infrastructure systems and internal developer platforms.
• Creating automated workflows from physical hardware to provisioned services.
• Designing data models and schemas for compute, networking, storage, dependencies and configuration management.
• Automating provisioning and deployment across physical, cloud and network environments.
• Collaborating across compute, networking, GPU, storage and cloud to ensure cohesive platform behavior.
• Owning the technical architecture and directing platform design, integrations and orchestration.
• Initially contributing to the codebase and then leading a team of 4–6 engineers.

Skills

Staff/Principal level

Python

Data modeling

CMDBs

Platform design

Production-quality code

Job description

Job Title: Principal Software Architect (Infrastructure Platform)

Client: Elite FinTech Firm

Salary: Up to £300k Base + Industry Leading Bonus

Location: London (Hybrid)

Sells: Greenfield platform engineering, architectural ownership, cutting-edge infrastructure, opportunity to build and lead a team, direct exposure to senior leadership!

An Elite FinTech Firm is looking for a highly talented Principal Software Engineer to design and build a centralised infrastructure platform that understands, manages and orchestrates its entire multi-petabyte ultra low-latency infrastructure estate.

This is a genuinely greenfield opportunity to build the software that connects physical infrastructure to fully provisioned services, bringing together compute, networking, storage and cloud through a centralised data model and API-driven automation.

The role will initially be highly hands-on, with ownership of the architecture and core development, before building and leading a team of around 4–6 engineers.

Role:

• Designing and building a centralised infrastructure platform / CMDB to model the organisation's infrastructure estate and the relationships between its components
• Developing APIs and software that connect infrastructure systems, provisioning tools and internal developer platforms
• Building automated workflows to take infrastructure from physical hardware through to fully configured, provisioned and usable services
• Designing data models and schemas covering compute, networking, storage, dependencies and configuration management
• Automating infrastructure provisioning, configuration and deployment across physical hardware, cloud and network environments
• Working across networking, compute, GPU infrastructure, storage and cloud to understand how the different components interact
• Taking ownership of the technical architecture and making key decisions around platform design, integrations and orchestration
• Initially contributing directly to the codebase before building and leading a team of 4–6 engineers

Skills:

• Significant experience in software engineering, ideally at Staff, Principal or equivalent level
• Strong programming skills, ideally in Python, with the ability to design and build production-quality software
• Strong understanding of data modelling, schema design and the relationships between infrastructure components
• Experience with CMDBs, configuration management platforms or infrastructure inventory systems
• Broad understanding of infrastructure across compute, networking, storage and cloud environments
• Experience designing and building platforms from scratch, with the ability to take ownership of architecture and technical direction