Solution Architect - 18 Month FTC

Solutions Architect (Payments / Fintech Transformation)

Location: London (Hybrid)

Contract: 18‑month Fixed Term Contract

The Opportunity

We are supporting a newly formed, high‑growth payments business backed by significant strategic investment and operating with a fintech mindset. This is a rare opportunity to join during a foundational phase, helping to design and deliver a clean, modern SaaS‑first enterprise technology landscape as part of a large‑scale transformation.

The organisation is creating a standalone payments acquiring business, combining the stability of an established payments operation with the pace, autonomy, and innovation culture of a fintech. This role is ideal for someone who thrives in fast‑moving, flat organisations and enjoys having genuine influence over architectural decisions.

The Role

We are seeking an experienced Solutions Architect to lead the design and integration of a new enterprise applications estate, replacing a complex legacy environment with a streamlined SaaS architecture across Finance, Risk, HR and corporate functions.

The focus of the role is business application architecture and integration, including connectivity to identity management, data platforms, and shared enterprise services. Infrastructure‑level design (e.g. cloud hosting, data warehouse engineering) will be handled by specialist peer teams.

This is an 18‑month fixed‑term role, created to drive delivery.

Key Responsibilities

Design and deliver end‑to‑end solutions that address complex business problems while balancing technology risk and delivery pace.

Create SaaS‑centric architectures that evolve over time and align with modern engineering and automated delivery practices.

Lead targeted design activities that maximise the value of cloud capabilities such as elasticity, containerisation and serverless.

Produce secure, resilient designs aligned to best‑practice security principles and operational expectations.

Ensure solutions balance risk, control, cost and business value appropriately.

Drive adoption of standardised enterprise solutions, influencing their evolution where gaps exist.

Support operational teams with fault‑finding and performance investigations, using available tooling.

Assess architectural impacts across risk, capacity and cost, including change and ongoing run costs.

Produce architecture artefacts required for governance across architecture, security, privacy and records management forums. About You

You will bring senior‑level architectural experience and be confident operating with autonomy in a transformation environment.

Essential Experience

Proven experience designing SaaS‑focused enterprise architectures spanning multiple business applications.

Background in one or more of the following domains: Finance, Risk, HR, or corporate functions (e.g. Compliance, Legal, Procurement).

Experience onboarding and integrating SaaS vendors within financial services or fintech environments.Highly Valued

Experience working in fintechs or smaller, scale‑appropriate organisations.

A highly proactive, self‑sufficient mindset, comfortable making decisions and driving outcomes.Working Model

Location: London

Hybrid working: 3 days per week in the office

Modern office environment supporting collaborative, cross‑functional deliveryWhy Apply?

Join a once‑in‑a‑career payments carve‑out and transformation

Influence the foundational architecture of a new standalone business

Work in a fintech‑style environment with real autonomy

Play a critical role in a high‑profile, multi‑year investment programmeApply now to avoid disappointment!

To find out more about Huxley, please visit

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales