Backend DeveloperDerry / HybridAt a GlanceSeasoned Backend Developer with strong Node.js and TypeScript skillsReal-time systems experience: WebSockets, pub/sub, RedisComfortable with AWS infrastructure and networking fundamentalsJoining a fast-scaling product company with a global ambition and genuine ownership cultureHybrid working from Derry, with flexibility for the right candidateWho Youll Work ForOur client is a fast-moving product company building real-time, connected technology at the intersection of IoT, mobile, and cloud. They are entering a significant growth phase, expanding from a UK and Ireland focus into a truly global business. With an established product already in market, this is a rare opportunity to join at exactly the right moment and shape the engineering culture as the company scales.What Youll Be DoingDesigning, building, enhancing, and maintaining scalable backend services and APIsLeading architectural decisions that support rapid growth and increased user demandWorking with real-time communication systems, including WebSockets and Managing Redis for pub/sub messaging, caching, and job queuingBuilding and maintaining robust integrations with third-party APIs, including error handling, rate limit management, retries, and monitoringOwning observability across the stack: structured logging, metrics, and alertingCollaborating on AWS infrastructure (RDS, Lambda, IoT Core) and applying a solid understanding of networking concepts such as VPCs, subnets, NAT gateways, and VPNsMentoring junior developers and contributing to a strong, high-trust engineering cultureIntegrating with third-party software to extend and enhance the product offeringYour ImpactIn this role, you will be one of the key technical voices shaping how the platform scales from a UK and Ireland solution into a globally capable product. Your architectural decisions will directly influence the reliability, performance, and extensibility of systems that sit at the heart of the business. You will help raise the engineering bar, mentor the next generation of developers on the team, and ensure the backend is built to last as the company enters its most ambitious growth phase yet.What Were Looking ForEssential5+ years of professional backend development experienceStrong Node.js and TypeScript skills as your primary development toolsSolid experience with WebSockets and for real-time communicationGood grasp of REST API design: authentication, error handling, and versioningComfortable with Redis for pub/sub, caching, and queuingSQL and relational database experience, with AWS RDS or MySQL preferredExperience with message and job queues such as Bee Queue, SQS, or similarStrong logging and observability practice: structured logs, metrics, and alertingProven experience with AWS services and a solid understanding of AWS networkingComfortable working at pace in a small, high-trust team environmentDesirableExposure to IoT systems, including firmware interaction, physical device constraints, and debugging connectivity issuesExperience with real-time mobile app communicationsA track record of scaling systems through periods of significant growthBackground in building or maintaining monitoring and alerting infrastructureWhats In It For YouGenuine ownership of architectural decisions that matter, made in collaboration with the wider teamA product company environment, not an agency: you will build things that lastA small, highly capable team with no bureaucracy and no hand-holdingHybrid working from Derry, with flexibility for the right personThe chance to join at a pivotal moment as the business targets global growthEquity on offer for successful candidatesIf youre interested or have any further questions on the role, please feel free to reach out to Eve Geddis directly on LinkedIn.Skills:Node JavaScript TypeScript WebSockets AWSBenefits:Pension Fund Medical Aid / Health CareWHJS1_NI