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Senior Full Stack Engineer

Method Recruitment Group — Australia · Posted ~3 hours ago

Senior Full-time

Skills

React Next.js .NET C# Node.js Full-stack web development Legacy application modernization SaaS development Migration strategy Responsive UI development SaaS Cloud

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Summary ✨ AI‑Generated

A growing product team is seeking a Senior Full Stack Engineer to modernize a core manufacturing platform and transform a legacy application into a browser-based SaaS product. You will shape migration strategies, build responsive interfaces with modern JavaScript frameworks, develop backend services with .NET and Node.js, and work closely with senior technical and product stakeholders.

Highlights

Senior engineering opportunity with significant ownership over a major platform modernization, close collaboration with technical leadership, product, design, and engineering teams, and the chance to shape a scalable browser-based SaaS product.

Description

Senior Full Stack Developer The Opportunity I am looking for a Senior Full Stack Developer to join a growing product team and play a key role in modernising a core manufacturing platform. You’ll be working on a new browser-based product that brings together complex workflows, visualisation and cloud technology to create a more streamlined experience for customers and partners. You’ll work closely with senior technical leadership, product, design and engineering to shape the product and make decisions around how it is built and scaled. What You'll Be Doing Owning the modernisation of a legacy .NET Framework application and transitioning it into a modern, browser-based SaaS product.Plan and implement migration strategies while maintaining backward compatibility and production stability.Design and develop web applications using React and Next.js, with .NET/C# and Node.js across the backend.Build responsive interfaces that provide a strong user experience across devices.Make key backend architecture decisions covering APIs, server-side logic and system integrations.Design and implement integrations with third-party APIs and external systems.Contribute to cloud and infrastructure design across AWS Lambda, EC2 and RDS.Champion clean, reusable and maintainable code.Participate in code reviews and help maintain strong engineering standards.Build systems that are observable, fault-tolerant and straightforward to maintain. What We're Looking For 5+ years' experience developing and maintaining full stack web applications.Strong commercial experience with .NET / C#, including both legacy .NET Framework and modern .NET.Proven experience migrating legacy .NET Framework applications to modern .NET.Strong knowledge of React and Next.js.Working experience with Node.js, ideally with Express, NestJS or a similar framework.Strong experience working with relational databases, particularly MSSQL.Experience designing and consuming REST APIs and third-party integrations.Strong understanding of application security, performance and scalable development practices.Solid experience with AWS, particularly Lambda, EC2 and RDS.Experience with the Serverless Framework.Experience with CI/CD, ideally including GitHub Actions. The Tech Stack C# / .NET Framework / Modern .NET | React | Next.js | Node.js | Three.js | MSSQL | AWS Lambda | AWS EC2 | AWS RDS | Serverless Framework | GitHub Actions AI tooling: Codex | Claude Code | Cursor | AI coding agents