[Remote] Full Stack Software Engineer

Location: Remote (New Zealand time zone)Type: Contractor / Full-TimeHours: Flexible, with at least 2–3 hours of overlap with NZT (6–10 PM BRT)Start Date: ImmediateAbout the RoleWe’re supporting one of our international clients on a project that combines green field projects with generative AI. We’re looking for an experienced full stack engineer to help develop autonomous agents that analyse, recommend, and implement real-time improvements. This role is perfect for someone with at least 8+ years of experience as a Software Engineer who, in recent years, has been diving deep into the world of LLMs, GenAI, and applied AI. You’ll have full autonomy to make technical and product decisions, working directly with the founders no product managers or rigid processes.ResponsibilitiesFull Stack DevelopmentDesign and build modern web applications with ReactJS and Node.js (TypeScript)Work closely with the founders to define architecture, technical roadmap, and engineering cultureEnsure quality, security, and scalability from the very first commitAutomate CI/CD pipelines using GitHub Actions, Docker, and DevOps best practicesAI/LLM IntegrationBuild autonomous agents and AI-powered features using LLMs, RAG, and GenAIIntegrate APIs like OpenAI, Claude, etc.Work with frameworks like LangGraph or custom architecturesCreate real-time data ingestion and transformation pipelinesDesign integration protocols like Model Context Protocol (MCP)RequirementsTechnical ExperienceAdvanced English is a must, both written and spoken. You’ll be working directly with international stakeholders and founders.8+ years of experience in software engineering, with strong full stack development background specially with Node.js, C#, Java, etcProficient in ReactJS, Node.js, TypeScriptExperience with Docker, and CI/CDAI/LLM ExperienceRecent transition into GenAI, LLMs, NLP, and RAGMastery of LLM APIs (OpenAI, Claude, etc.)Experience with Python or TypeScript for AI applicationsAbility to build smart integrations and data pipelinesDesirablePrevious experience in startups or high-autonomy environments (no PMs, testers, direct reporting to founders)Experience with rapid prototyping and MVP validationIdeal ProfileExperimental: Enjoys testing new tools and exploring emerging technologiesBuilder: Loves building products from scratch and iterating fastThoughtful: Always considers security and performance from the design stageCollaborative: Communicates well with both technical and non-technical stakeholdersWhat We OfferInternational project with heavy use of generative AISmall, collaborative, and highly autonomous technical teamFlexible, remote work environment built on trustReal opportunity to shape the product and influence company decisionsRole DescriptionThis is a full-time remote role for a Full Stack Software Engineer specializing in React, Node.js, and GenAI. The engineer will be responsible for developing and maintaining web applications, working on both front-end and back-end development tasks. Day-to-day tasks include coding, debugging, and collaborating with the engineering team to ensure high-quality software delivery. The engineer will also participate in code reviews and contribute to technical documentation.QualificationsBack-End Web Development skills, including Node.jsFront-End Development skills, including ReactFull-Stack Development experienceProficiency in Cascading Style Sheets (CSS)Strong understanding of software development principlesExcellent problem-solving abilities and attention to detailAbility to work independently and remotelyExperience with GenAI and AI-driven solutions is a plusBachelor's degree in Computer Science, Engineering, or related fieldCompany DescriptionTechVantage Solutions is a New Zealand-based software consultancy that specialises in software development outsourcing and engineering team augmentation. We empower businesses, from fast-moving startups to global enterprises, to build, scale, and deliver high-quality software with speed and confidence. Our partnerships span the globe, including companies serving Fortune 500 clients, to solve complex technical challenges, accelerate delivery, and strengthen engineering capabilities. At TechVantage, we bridge the gap between business and technology, delivering scalable, world-class solutions from New Zealand.