Senior Software Engineer (Backend / Platform)
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Key skills for this role
About the Role
Hoxton Wealth is hiring a Senior Software Engineer to own backend and platform architecture, lead technical decision-making, and raise engineering standards across mission-critical fintech systems.
Key Skills for This Role
Responsibilities
- Design, evolve, and govern backend and service architectures using Node.js, PHP/Laravel, and Python/FastAPI
- Own REST API architecture including domain modelling, versioning, idempotency, and security controls
- Actively code on complex workflows, financial logic, and core platform services
- Lead incident remediation through structured RCA and systemic fixes
- Establish AI assisted engineering practices for development, testing, and documentation
- Lead and mentor a small backend/platform team
Requirements
- Experience operating at architect level while remaining hands on
- Expertise in Node.js, PHP/Laravel, and Python/FastAPI
- Strong understanding of REST API architecture, domain modelling, versioning, idempotency, and security controls
- Experience with MySQL and PostgreSQL data modelling
- Ability to lead and mentor a small backend/platform team
Full Job Posting
Role Overview
- We are hiring a Senior Engineer who operates at architect level while remaining hands on. This role owns backend and platform architecture, leads technical decision making, and raises engineering standards across mission critical fintech systems.
Key Responsibilities
- Architecture & Platform Ownership: Design, evolve, and govern backend and service architectures using Node.js, PHP/Laravel, and Python/FastAPI.
- Own REST API architecture including domain modelling, versioning, idempotency, and security controls.
- Define and review HLDs/LLDs ensuring scalability, auditability, and resilience.
- Drive decisions around data consistency, transactions, and fault tolerance.
- Hands on Engineering: Actively code on complex workflows, financial logic, and core platform services.
- Review critical code paths for correctness, performance, and security.
- Lead incident remediation through structured RCA and systemic fixes.
- Own technical debt prioritisation aligned with business and risk impact.
- Gen AI & Engineering Excellence: Establish AI assisted engineering practices for development, testing, and documentation.
- Define responsible AI usage standards with strict data protection controls.
- Coach engineers on effective AI assisted workflows without compromising rigor.
- Data & Compliance: Own data modelling strategies using MySQL and PostgreSQL.
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