Senior Software Engineer

Company: Instil
Apply for the Senior Software Engineer
Location: Belfast
Job Description:

The Role

We’re looking for experienced Senior Software Engineers who enjoy building scalable systems, working with cloud infrastructure, and delivering high-quality software in production environments. This role sits at the intersection of software engineering and cloud/platform work. You’ll be designing and building backend services using technologies like C#, TypeScript, or Java, while working closely with modern cloud platforms. It’s a strong fit for someone who takes ownership, is comfortable leading on technical decisions, and enjoys improving how systems are designed, built, and operated.

What You’ll Be Doing

  • Design, build, and maintain backend services using C#, TypeScript (Node.js), or Java
  • Develop cloud-native applications across AWS, Azure, or GCP
  • Contribute to system architecture and make key technical decisions
  • Work with distributed systems, APIs, and event-driven architectures
  • Collaborate with platform teams to ensure reliable, scalable deployments
  • Contribute to CI/CD pipelines and improve engineering workflows
  • Troubleshoot issues across application and infrastructure layers
  • Mentor engineers and contribute to a strong engineering culture
  • Work closely with cross-functional teams to deliver production-ready systems

Required

  • Strong experience building production systems using C#, TypeScript, or Java
  • Solid experience working with cloud platforms (AWS, Azure, or GCP)
  • Good understanding of system design and scalable architectures
  • Experience building and consuming APIs (REST / event-based systems)
  • Comfortable working across the full delivery lifecycle (build, deploy, operate)
  • Strong grasp of software engineering fundamentals and best practices
  • Ability to take ownership and drive technical solutions

Nice to Have

  • Frontend development experience using React, Angular, or Vue
  • Experience with infrastructure-as-code (e.g., Terraform, CloudFormation)
  • Exposure to containerisation (Docker, Kubernetes)
  • Familiarity with CI/CD tooling (GitLab CI, GitHub Actions, etc.)
  • Experience working in cross-functional or product-focused teams
  • Interest in improving engineering standards, tooling, and ways of working

Benefits

  • 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.

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Posted: May 24th, 2026