Senior Software Engineer Location: Belfast - Hybrid Salary: £60,000 - £70,000 + Bonus Engagement: Permanent OCHO is partnering with a scaling, product-led technology business building modern cloud-native platforms at the core of its global growth strategy. This is not a feature-factory role. This is a senior engineering position for someone who wants architectural influence, technical ownership, and the opportunity to shape how a platform evolves as it scales. The Opportunity You will join a high-calibre platform engineering team responsible for systems that directly underpin global product delivery and company growth. These platforms are not peripheral. They are central to revenue, scalability, and long-term strategy. You will work across the full stack using modern tooling, cloud-native infrastructure, and disciplined engineering practices. The expectation at this level is clear: strong fundamentals, clean architecture, and confident decision-making. What You'll Be Doing * Designing and evolving core platform systems with scalability in mind * Delivering full-stack features using TypeScript / Node.js on the backend, and React / on the frontend * Architecting and deploying cloud-native solutions on AWS * Defining and managing infrastructure through Terraform * Taking ownership of CI/CD pipelines and release processes * Applying test-driven development and strong automated testing principles * Contributing to architectural decisions and long-term platform direction * Troubleshooting complex production issues across the stack * Working closely with product and delivery stakeholders to shape solutions You will operate as a senior individual contributor with meaningful influence over design, quality, and technical standards. What We're Looking For * Strong commercial experience as a Software Engineer (senior level) * Deep experience with JavaScript / TypeScript, particularly in Node.js environments * Strong frontend capability using React and * Hands-on AWS experience across application deployment and infrastructure * Experience using Infrastructure as Code, ideally Terraform * Strong database fundamentals (PostgreSQL, DynamoDB or similar) * Proven experience operating within modern CI/CD environments * Clear understanding of scalable system design and cloud architecture Highly Desirable * Experience writing backends in Rust * Exposure to AI-powered developer tooling and agentic workflows * Curiosity around AI, data, and emerging technologies * Experience in platform, SaaS, or product-led businesses At this level, we are looking for engineers who think beyond tickets and understand systems. Why This Role * Senior-level ownership without heavy management layers * Modern tech stack and disciplined engineering practices * Real architectural influence * High-growth environment * £60,000 - £70,000 base salary * Performance-based bonus * Clear pathway toward Lead / Principal progression If you are an engineer who enjoys building clean, scalable systems and influencing platform direction, this will resonate. For a confidential conversation, connect directly with Ryan Quinn on LinkedIn. OCHO. Building Teams. Skills: React TypeScript AWS Benefits: Bonus