Fullstack Engineer

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 where you'll work across modern frontend technologies such as React, TypeScript, and JavaScript, alongside backend technologies including Python, Java, Node.js, and C#. You'll also work closely with AWS cloud services 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, TypeScript, and JavaScript

Design scalable, maintainable UI architectures and reusable component libraries

Develop and maintain backend services using technologies such as Python, Java, Node.js, and C#

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

Commercial experience building modern web applications using React, TypeScript, and/or JavaScript

Experience developing backend services using one or more of Python, Java, Node.js, or C#

Strong full-stack engineering experience across frontend and backend technologies

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.

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