Mid-Level Software Engineer (.Net)

The Role We're looking for a Mid-Level Software Engineer to join a team building and scaling a modern, enterprise-grade GenAI platform on AWS. This is a full-stack engineering role with a strong frontend focus, where you'll spend much of your time building intuitive, high-quality user experiences using React and TypeScript. You'll also develop backend services using ExpressJS, work with a large PostgreSQL database, and build cloud-native capabilities using AWS services including Lambda and S3. You'll be part of a team bringing AI-powered solutions into real-world enterprise environments, helping to build secure, scalable, and production-ready applications that solve meaningful business problems. What You'll Be Doing * Build modern, responsive web applications using React and TypeScript * Design scalable frontend architectures and reusable component libraries * Develop and maintain backend services using ExpressJS and Node.js * Work with a large PostgreSQL database to design, optimise, and manage data models * Build and integrate APIs across frontend and backend systems * Develop serverless functionality using AWS Lambda * Design and implement storage and data workflows using Amazon S3 * Contribute to the design and evolution of scalable cloud-native applications * Improve application performance, reliability, and maintainability * Implement monitoring, logging, and operational best practices * Troubleshoot issues across the full application stack * Apply secure coding principles and software engineering best practices * Collaborate with engineers, designers, product stakeholders, and AI specialists to deliver high-quality What We're Looking For * Strong experience building applications with React and TypeScript * Experience developing backend applications using Node.js and ExpressJS * Experience working with relational databases, ideally PostgreSQL * Understanding of API design and integration * Experience building and deploying applications in AWS environments * Familiarity with AWS Lambda and serverless architectures * Experience working with object storage services such as Amazon S3 * Strong software engineering fundamentals and problem-solving skills * Understanding of modern web application architecture and design patterns * Experience working within Agile software delivery teams * Strong communication and collaboration skills Nice to Have * Experience developing AI-enabled or data-driven applications * Experience with AWS services beyond Lambda and S3 * Familiarity with Infrastructure as Code approaches * Experience with CI/CD pipelines and automated deployment processes * Experience with monitoring and observability tooling * Understanding of cloud security principles and best practices * Experience working in consulting or client-facing environments * Exposure to event-driven or distributed system architectures Please note: We offer flexible hybrid working, but candidates should be based in Northern Ireland and able to attend our Belfast office when required. Why Join Instil? At Instil, we believe great work starts with happy, motivated people. That’s why we’ve built a benefits package that supports your wellbeing, growth, and life outside of work, because when you thrive, so do we. * Recognition That Matters: A discretionary annual performance bonus that rewards your impact and contribution to our success. * Flexibility Built In: Flexible working arrangements and summer hours, because life isn’t 9 to 5, and balance matters. * Financial Security: A highly competitive pension scheme with generous employer contributions, private healthcare, and life assurance for peace of mind. * Health & Wellbeing: Employee Assistance Programme, mental health support, cycle-to-work scheme, and regular social events to keep our culture vibrant. * Time to Recharge: 35 days holiday, enhanced maternity pay, and family-first policies so you can focus on what matters most. * Learning Never Stops: From courses to certifications, we’ll invest in your development so you can keep growing and shaping what’s next. * Community & Culture: Opportunities to volunteer, give back, and be part of initiatives that make Instil a truly inclusive and connected workplace. And that’s just the start, drop us a note to find out more. Company Description Instil has been delivering world-class software engineering and technology solutions for over 20 years, trusted by global brands to solve complex challenges and drive innovation. From modernising legacy systems to building cutting-edge applications, we help our clients navigate an ever-changing digital landscape with confidence and agility. We’re proud to be an award-winning employer, reflecting how our people are at the heart of everything we do: * Recognised as a Great Place to Work® for three consecutive years, and in 2024 ranked in the Top 20 Best Workplaces in the UK for medium-sized companies. * Winner of Company of the Year at the Digital DNA Awards 2022, celebrating excellence in Northern Ireland’s tech sector. Driven by a love for technology and a commitment to excellence, we bring together people who want to make a difference. We’ll support your journey, because your success is part of ours. #LI-PR1 #InstilCareers

The Role We're looking for a Mid-Level Software Engineer to join a team building and scaling a modern, enterprise-grade GenAI platform on AWS. This is a full-stack engineering role with a strong frontend focus, where you'll spend significant time building high-quality user experiences using React and TypeScript. Equally important, you'll work closely with AWS cloud services, infrastructure, and platform engineering to help design, deploy, and operate scalable, secure, and highly available systems. You'll be part of a team bringing AI capabilities into real-world enterprise workflows, ensuring solutions are production-ready, observable, resilient, and able to scale with demand. What You'll Be Doing * Build modern, responsive web applications using React and TypeScript * Design scalable, maintainable UI architectures and reusable component libraries * Develop backend services, primarily in Python * Integrate with REST and GraphQL APIs * Design, build, and operate cloud-native solutions on AWS * Work with AWS services to deliver secure, scalable, and resilient applications * Deploy and manage applications in containerised environments using Docker and Kubernetes * Contribute to Infrastructure as Code and cloud automation practices * Improve CI/CD pipelines and software delivery processes * Implement monitoring, logging, tracing, and operational best practices * Support cloud reliability, performance optimisation, and incident resolution * Apply secure coding principles and cloud security best practices * Troubleshoot issues across both application and AWS infrastructure layers * Collaborate with engineers, designers, and stakeholders to deliver production-ready systems What We're Looking For * Strong experience building applications with React and TypeScript * Experience developing backend services using Python * Hands-on experience working with AWS in production environments * Understanding of cloud-native architecture and distributed systems principles * Experience deploying and operating applications in cloud environments * Experience with containerisation technologies such as Docker and Kubernetes * Experience with CI/CD pipelines and modern software delivery practices * Familiarity with monitoring, logging, and observability tooling * Experience integrating with REST and/or GraphQL APIs * Strong software engineering fundamentals and system design skills * Understanding of security best practices, particularly within cloud environments Nice to Have * AWS certifications (Developer, Solutions Architect, or similar) * Experience with Infrastructure as Code (Terraform, CloudFormation, CDK) * Experience running Kubernetes workloads in AWS (EKS) * Experience with serverless technologies such as AWS Lambda * Familiarity with AWS services such as ECS, EKS, API Gateway, S3, RDS, DynamoDB, CloudWatch, and IAM * Experience with observability platforms such as Datadog, Prometheus, Grafana, or New Relic * Exposure to distributed and event-driven architectures * Experience working in consulting or client-facing environments * Experience operating systems in security-conscious or regulated environments Please note: We offer flexible hybrid working, but candidates should be based in Northern Ireland and able to attend our Belfast office when required. Why Join Instil? At Instil, we believe great work starts with happy, motivated people. That’s why we’ve built a benefits package that supports your wellbeing, growth, and life outside of work, because when you thrive, so do we. * Recognition That Matters: A discretionary annual performance bonus that rewards your impact and contribution to our success. * Flexibility Built In: Flexible working arrangements and summer hours, because life isn’t 9 to 5, and balance matters. * Financial Security: A highly competitive pension scheme with generous employer contributions, private healthcare, and life assurance for peace of mind. * Health & Wellbeing: Employee Assistance Programme, mental health support, cycle-to-work scheme, and regular social events to keep our culture vibrant. * Time to Recharge: 35 days holiday, enhanced maternity pay, and family-first policies so you can focus on what matters most. * Learning Never Stops: From courses to certifications, we’ll invest in your development so you can keep growing and shaping what’s next. * Community & Culture: Opportunities to volunteer, give back, and be part of initiatives that make Instil a truly inclusive and connected workplace. And that’s just the start, drop us a note to find out more. Company Description Instil has been delivering world-class software engineering and technology solutions for over 20 years, trusted by global brands to solve complex challenges and drive innovation. From modernising legacy systems to building cutting-edge applications, we help our clients navigate an ever-changing digital landscape with confidence and agility. We’re proud to be an award-winning employer, reflecting how our people are at the heart of everything we do: * Recognised as a Great Place to Work® for three consecutive years, and in 2024 ranked in the Top 20 Best Workplaces in the UK for medium-sized companies. * Winner of Company of the Year at the Digital DNA Awards 2022, celebrating excellence in Northern Ireland’s tech sector. Driven by a love for technology and a commitment to excellence, we bring together people who want to make a difference. We’ll support your journey, because your success is part of ours. #LI-PR1 #InstilCareers