SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
Allica Bank is the UK's fastest-growing fintech firm, focused on serving established SMEs—a major underserved segment representing over a third of the UK economy. The Technology department sits at the centre of the organisation, designing and building platforms that power the bank with minimal legacy constraints.
As Staff Full Stack Engineer, you will set technical direction across 2–3 squads, line-managing 3–5 Full Stack Engineers. You are responsible for shaping architecture, ensuring squad success, and driving consistent, secure, and compliant delivery across Allica's digital products.
Key Responsibilities:
• Define and evolve cross-squad technical patterns and guardrails for backend services (Kotlin/Java Spring Boot microservices, REST/OpenAPI, messaging, integrations) and frontend architectures (React/TypeScript, shared design system, Nx, micro frontends).
• Own platform-level technical initiatives that reduce complexity and duplication, including shared libraries, design system tokens, infrastructure templates, observability frameworks, and code scaffolding templates.
• Define and maintain organisation-wide standards for performance, reliability, security, accessibility, and operational excellence in partnership with Architecture, InfoSec, Risk, and Compliance.
• Establish and improve SLOs, error budget policies, and incident management practices across key services; lead post-incident reviews and drive structural fixes.
• Lead cross-squad system design for complex initiatives, ensuring coherent architectures, well-managed dependencies, clear domain boundaries, and effective service/frontend interactions.
• Shape and continuously improve cloud-native deployment patterns on Azure (Container Apps, Static Web Apps, networking, configuration, scaling), working closely with Platform Engineering.
• Drive improvements to developer experience (CI/CD, local development workflows, test strategy, release processes) across multiple squads using GitHub, Azure DevOps, and approved tools.
• Define and champion responsible AI-assisted engineering practices, including standards for Claude Code, Codex, GitHub Copilot, and other GenAI tools; establish expectations for code review and validation; measure and optimise productivity gains.
• Mentor and line-manage Senior Full Stack Engineers, supporting their growth in technical leadership, people leadership, and cross-squad impact.
• Foster a culture of learning and continuous improvement through communities of practice, architecture forums, and knowledge-sharing.
• Influence and communicate effectively with senior stakeholders (Product, Design, Operations, Risk, Compliance), aligning technical strategies with product and business roadmaps.
You are hands-on: you design and review architectures, pair with engineers, and contribute code to high-impact initiatives. You work without the weight of legacy systems, enabling focus on building for the future. Everyone contributes ideas and helps shape how the organisation operates.
Requirements:
• Extensive experience designing and delivering distributed systems at scale using Spring Boot (Kotlin/Java) and modern web technologies (React/TypeScript).
• Proven track record of simplifying complex architectures and defining cross-team patterns and platforms in a multi-squad environment.
• Solid experience with containerised workloads and cloud platforms (Azure preferred; AWS or Google Cloud also valuable), including deployment, monitoring, and scaling of microservices and web applications.
• Deep understanding of secure coding practices (e.g. OWASP), privacy, auditability, and regulatory expectations in financial services or similarly regulated environments.
• Strong experience with observability, SLOs, incident management, and operational excellence (logging, tracing, metrics, dashboards, on-call practices).
• Strong understanding of CI/CD and DevOps practices, ideally using GitHub Actions or Azure DevOps Pipelines, infrastructure-as-code, and automated testing at multiple levels.
• Experience designing and governing APIs at scale (REST, OpenAPI, API gateways, versioning, backwards compatibility, service contracts).
• Demonstrated ability to lead technical programmes or initiatives that span multiple teams and systems, delivering measurable improvements to reliability, performance, or developer productivity.
• Experience introducing and scaling the use of new tools and standards across organisations, including GenAI technologies (e.g. GitHub Copilot) with appropriate guardrails.
• Proven people leadership experience: line-managing senior engineers, coaching technical leaders, and building high-performing, inclusive teams.
• Excellent communication and influencing skills, with the ability to work effectively with technical and non-technical stakeholders, communicate trade-offs clearly, and build consensus.
