Senior Engineer - Fintech Platform

Senior Engineer - Fintech Platform at Flisher + Partners

Flisher + Partners is a trusted talent partner to the investment and fintech sectors. Our client, a large-scale fintech platform formed through the merger of two established financial technology businesses, is undertaking a significant digital transformation programme. They are rebuilding internal platforms, automating core processes, and integrating systems across Finance, Operations, Compliance, and HR to create a scalable, resilient, and AI-ready operating model.

They are now looking for a Senior Engineer - Fintech Platform to drive the technical execution of this digital transformation agenda, owning integration, automation, and platform enablement across the organisation.

This is a full-time, permanent role offering a base salary of £100,000 - £130,000 plus a full discretionary bonus package. The position allows for remote or hybrid working with a London HQ.

What You'll Do

• Alongside Head of Engineering, take ownership of the engineering execution behind transformation programmes spanning Finance, HR, Compliance, and Operations.
• Set strong, hands-on technical leadership across systems integration, workflow automation, and internal platform development.
• Architect and guide API-led, event-driven system designs that enable modular, scalable, and loosely connected services.
• Drive the onboarding and connection of external SaaS products and vendors into a sophisticated fintech technology landscape.
• Establish and uphold best practices for integrations, including interface design, access control, version management, fault handling, and service monitoring.
• Work in close partnership with Business Operations and Product Strategy to turn operational challenges into dependable, well-engineered solutions.

What You'll Bring

• Experience leading technical delivery for internal systems, integrations, or change initiatives.
• Strong understanding of building and connecting modern services and platforms, including APIs and asynchronous systems.
• Hands-on experience developing and operating production software (Node.js or similar).
• Familiarity with cloud-native architectures, ideally within AWS-based environments.
• Experience integrating external tools or platforms into complex or regulated organisations.
• Solid appreciation of security, reliability, and operational resilience.
• Ability to communicate technical concepts clearly and work effectively with both technical and non-technical stakeholders.
• Comfortable bringing structure and direction to evolving, ambiguous problem spaces.

Desirable Skills

• Background in regulated industries such as fintech or financial services.
• Exposure to operational automation, data platforms, or workflow tooling.
• Experience supporting system consolidation or post-merger technology change.

Benefits

• Base Salary: £100,000 - £130,000 plus bonus.
• Remote or Hybrid working model with flexibility.
• High-impact role with visibility across senior technology and business leadership.
• Opportunity to shape the technical foundations of a major digital transformation programme.
• Collaborative culture that values ownership, pragmatism, and engineering excellence.

Key skills/competency

• Fintech
• Digital Transformation
• System Integration
• Workflow Automation
• API Design
• Cloud-Native Architecture
• Node.js
• AWS
• Technical Leadership
• Operational Resilience