Job Title: Senior OAT Engineer
Location: Onsite (UK Wide) travel 5 days per week (various locations)
Role Type: Contract - Outside IR35
Duration: 6 months + opportunity to extend
Clearance: Active SC is essential
Sponsorship: Please note, we are unable to provide sponsorship for this opportunity
Who we are:
At 2i, we're passionate about making technology work better.
We're the UK's largest pure play Quality Assurance and Software Testing business, helping organisations deliver complex technology change with confidence.
From Quality Engineering and Test Automation to Strategic Consultancy and AI Assurance, we work with organisations across the public and private sectors to solve challenges, reduce risk and deliver real impact.
2026 has been an exciting year for us. With the addition of Planit UK to the 2i family and the continued expansion of our delivery capabilities in India, we're growing our expertise, our reach and the opportunities available to our people.
And it's our people who make it all possible.
Why Join 2i?
Great people. Interesting challenges. Real opportunities to grow.
We're proud to be certified as a Great Place to Work for the fourth consecutive year and to be recognised as one of the UK's Best Workplaces in Tech and Best Workplaces for Wellbeing in 2026.
But what really makes 2i special is our people.
We're a team of curious thinkers, problem solvers and collaborators who enjoy sharing knowledge, challenging ideas and finding better ways to do things.
Whether you're developing your expertise, exploring new technologies or taking the next step in your career, we want you to feel supported, valued and encouraged to succeed.
You'll have opportunities to work on meaningful projects, learn from talented colleagues and contribute to a business that's continuing to evolve and grow.
You'll need to have...
- Commercial experience in Quality Assurance and testing across networks and infrastructure environments.
- Experience testing physical infrastructure and hardware, including installation, configuration and validation.
- Experience with resilience and recovery testing, including backup, restore and disaster recovery processes.
- Commercial experience testing system deployments, migrations and upgrades, with exposure to cloud migration activities.
- Experience working with AWS and cloud-based infrastructure environments.
- Deep understanding of network infrastructure, including routers, access points, networks and associated connectivity.
- Experience working with Linux systems and virtualised environments/VMs.
- Experience with system monitoring, alerting, logging and auditing, with the ability to investigate issues and identify root causes.
- Understanding of system security and the principles of testing secure infrastructure and network environments.
- Experience testing system start-up and shutdown processes, as well as archiving and data/system purging.
- Experience using trends and analytics to identify potential issues, monitor system performance and support continuous improvement.
- Experience planning and executing Operational Acceptance Testing (OAT) and supporting systems through to production readiness.
- Strong understanding of infrastructure quality, reliability and operational resilience, with the ability to identify and manage risks across complex environments.
Our Culture
Our values are simple. We care about our colleagues, continuously develop our expertise, deliver value to our clients and make time to enjoy what we do.
We believe that great work happens when people feel trusted, supported and connected.
As we continue to grow, we're committed to creating an environment where people can build meaningful careers, share ideas and make a genuine contribution.
Ready to Join Team2i?
If you're looking for your next opportunity and want to be part of a business where your ideas, skills and curiosity are valued, we'd love to hear from you.
Explore our opportunities and discover where your career could take you with #Team2i.
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