Job Description
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Mando Group’s mission is to help ambitious digital leaders solve complex problems, enabling them to move faster, serve better, and reduce costs.
Over the last few years we have built something rare ... A respected, award winning business with brilliant people and trusted client and partner relationships.
At Mando Group our team demonstrate:
- Purpose and performance
- Warmth and ambition
- Care and commercial confidence
- Thoughtfulness and momentum
About the Role
As an Experimentation Lead at Mando Group, you will lead the design, execution and analysis of experiments that directly shape how our clients' digital products evolve. You will be the go-to authority on testing rigour and statistical best practice - partnering with product, engineering, insights and UX teams to build evidence-based roadmaps that drive measurable outcomes.
This is a senior, client-facing role. You will represent Mando Group in all experimentation-related conversations and govern the quality of work produced by the wider team. You will connect test results to commercial impact, contributing to the profitability of client engagements and the growth of our experimentation practice.
- About You
You are outcome-obsessed, always focusing on delivering tangible value rather than just completing tasks.
- You understand the wider context of your work and make thoughtful decisions that support great outcomes for our clients, our teams, and the business - with an efficiency mindset that looks for ways to streamline, simplify, and automate.
- You thrive in a fast-paced, collaborative environment and remain calm and steady through uncertainty, providing clarity and reassurance to clients, internal customers, and other stakeholders when things feel ambiguous or overwhelming.
- You're a proactive problem-solver: you don't just surface issues, you bring solutions and a clear recommendation so we can move forward with confidence.
- You anticipate needs and go above and beyond to delight customers and colleagues — whether that's supporting existing accounts, helping win new work, or ensuring our operations run smoothly.
Key Responsibilities
- Lead the end-to-end design, execution and analysis of Optimizely Web and Feature experimentation, from hypothesis formation through to stakeholder insight delivery.
- Own the strategic experimentation roadmap, running planning sessions with senior stakeholders to align the test pipeline with business OKRs and product vision.
- Partner with product, UX, engineering and data science teams to define success metrics, instrumentation requirements and experiment integrity standards.
- Translate experiment results into clear, commercially grounded recommendations and present findings confidently to both technical and non-technical audiences.
- Govern the quality of experiment designs and analyses produced by the wider team, providing constructive guidance and raising the bar for statistical rigour.
- Champion a culture of evidence-based decision-making by establishing best practices, documentation standards and experimentation governance processes.
- Represent Mando Group independently in all client-facing experimentation conversations, building trusted relationships with senior stakeholders.
- Mentor and develop junior Analysts and Specialists, providing structured guidance on experimental design, statistical interpretation and tooling.
Essential Skills
- Expert-level knowledge of statistical methods — significance testing, confidence intervals, effect sizes, MDE calculation and power
analysis
- Hands-on experience with Optimizely Web and Feature Experimentation and VWO
- Strong data visualisation skills — ability to build experiment dashboards and communicate results clearly
- Proven ability to manage concurrent tests and avoid interaction effects in complex product environments
- Experience partnering with senior stakeholders to prioritise and sequence experiment roadmaps
- Experience in a consultancy or client-facing agency environment
We have three values that shape how we think, behave and make decisions.
These inform how we hire and invest, and how we work together. They’re never compromised. And everyone here must know, love and live by them.
Alongside these values are core principles of honesty, respect and inclusiveness.
- Growth-minded - We believe in growing, always. Growth comes from supporting each other, staying curious, and being open to change. At Mando Group, growth can be fast, exciting, and sometimes messy – and that’s okay. It turns learning into better outcomes.
- Accountable - We take responsibility seriously. Accountability means delivering on our promises and stepping up when things don’t go to plan. At Mando Group, it’s about owning actions and outcomes, making good decisions, and earning trust through transparency and professionalism.
- Passionate - It’s not just about completing tasks. Passion shows up as energy, intent, and persistence when things get hard. It drives exceptional work and real impact. At Mando Group, passion helps us innovate, be great teammates, and create work that our clients and users value.
Benefits
Flexible working:
- You work a 7.5 hour day, with the flexibility to decide your own start, finish and break times (providing you don't block anyone else). You can chose to work from home, or our Liverpool city centre office.
Competitive package:
- 25 days of holiday increasing with length of service, plus bank holidays and the option to buy / sell holidays.
- Day off on your Birthday.
- A competitive salary.
- Employee pension scheme with Royal London.
- Client and recruitment referral bonus.
Health and wellbeing:
- Private health insurance with access to a full suite of medical, dental and wider wellbeing benefits.
Comprehensive training:
- Structured onboarding process and ongoing professional development programme.
Environmental benefits:
- Cycle-to-work scheme and Electric Vehicle Salary Sacrifice Scheme.
- Personal sustainability allowance.
- Volunteering day and access to the OnHand volunteering app.
- Options for a travel loan and discounted parking.
Inclusion and diversity
We celebrate equality and diversity and strive to provide an environment where everyone can thrive. As an equal opportunities employer, we do not discriminate on the grounds of gender, sexual orientation, marital or civil partner status, gender reassignment, pregnancy, maternity, race, nationality, religion or belief, disability, or age. If you require any adjustments during the recruitment process, please let us know. Join us and be part of a forward-thinking team where you can do some of the most rewarding work of your career!