Principal Developer / Architect

We're recruiting on behalf of a financial-technology client seeking a Principal Developer with strong architectural capability. This role sits within a senior Architecture function and will shape the technical direction of a complex, data-driven product suite.

This role directly influences the long-term architecture, resilience, and scalability of a major financial-technology platform. You'll play a key part in shaping future technical strategy and ensuring the platform remains robust and fit for growth.

You'll act as a hands-on technical authority, defining architecture standards, validating solution designs, and guiding engineering teams toward scalable, secure, cloud-native systems.

Key Focus: Architecture leadership + AWS expertise

What You'll Do

• Define and govern architecture, development, and data standards.
• Design and review solution architectures, assessing risks and trade-offs.
• Build PoCs and technical spikes to validate decisions and technologies.
• Provide architectural leadership across multiple products and teams.
• Improve system performance, reliability, scalability, and resilience.
• Lead data modelling and contribute to data architecture standards.
• Collaborate with senior architects, engineering leads, product teams, and external partners.
• Ensure designs meet SLAs, security, compliance, and operational requirements.

• 8-10+ years in software engineering and/or solution architecture.
• Experience operating at Senior/Principal level in enterprise environments.
• Strong background in distributed, cloud-native, and data-intensive systems.
• Deep AWS experience (essential).
• Strong data modelling and data architecture skills.
• Expertise in Java, Spring Boot, REST/event-driven services; good knowledge of Angular/Node.js.
• Solid understanding of CI/CD, IaC (Terraform/CloudFormation), containers (Docker/Kubernetes), and modern DevOps practices.
• Experience with observability, security-by-design, and high-availability systems.
• Excellent communication and stakeholder-management skills.

This role directly influences the long-term architecture, resilience, and scalability of a major financial-technology platform. You'll play a key part in shaping future technical strategy and ensuring the platform remains robust and fit for growth.