Senior CRM Consultant in London

Massive Rocket is a rapidly scaling Braze and Snowflake agency on a mission to transform how digital marketing, product, and engineering teams connect. In just five years, we have grown at speed and are now gearing up for our next big milestone: hitting $100M in revenue. We build human experiences at scale, powered by cutting-edge web, mobile, cloud, data, and AI technologies. If you are excited by innovation, love solving complex challenges, and want to help shape the future of digital experiences, you will feel right at home here.

Every role at Massive Rocket is entrepreneurial. The people who thrive here do not just focus on their own remit — they understand the goals of the teams around them and actively contribute to the success of their colleagues, customers, and partners. We are building a culture of ownership, collaboration, and growth, and we are looking for people who want to make a real impact.

As a Senior CRM Consultant at Massive Rocket, you will be a key delivery partner responsible for turning CRM strategies into high-quality, high-impact campaigns across multiple channels. You will focus on planning, executing, and optimising CRM initiatives using platforms such as Braze, ensuring strategies are activated accurately, efficiently, and to the highest standard.

While you won’t be responsible for owning CRM strategy, you will work closely with clients and internal strategy teams to translate agreed plans into executable campaigns. You will play a hands-on role in guiding day-to-day delivery, ensuring smooth operations, strong attention to detail, and consistently excellent client experiences. This role is critical to the success of our CRM engagements — ensuring campaigns are executed flawlessly, data is used effectively, and clients see tangible results from their CRM investments.

What Will You Do?

• Lead the execution of CRM campaigns across multiple channels, including email, SMS, push notifications, content cards, and WhatsApp.
• Configure and customise CRM platforms (primarily Braze) to implement agreed strategies and campaign plans.
• Build, launch, and optimise targeted campaigns using segmentation and personalisation capabilities.
• Partner with CRM Strategists, delivery teams, and other stakeholders to ensure strong alignment between strategy and execution.
• Work directly with clients to understand requirements, manage expectations, and deliver effective, tailored solutions.
• Manage, analyse, and interpret customer data to inform campaign execution and optimisation.
• Ensure high standards of QA across campaigns, integrations, documentation, and reporting.
• Track, measure, and report on campaign performance against defined metrics and KPIs.
• Contribute to continuous improvement by applying best practices and platform innovations to client work.

What Makes You a Great Fit

• 5+ years of experience in CRM, marketing automation, or lifecycle marketing roles.
• Strong hands-on experience with CRM platforms such as Braze, Salesforce Marketing Cloud, or HubSpot.
• Excellent attention to detail, with proven experience QA'ing CRM campaigns, integrations, and documentation.
• Solid understanding of digital marketing and customer lifecycle concepts.
• Working knowledge of relational databases and data structures.
• Experience working in an agency or client-facing environment.
• Strong communication and collaboration skills, with the ability to work effectively in cross-functional teams.
• Proactive, delivery-focused mindset with the ability to manage multiple priorities.
• Comfortable managing multiple priorities in a fast-paced, client-driven environment.
• English proficiency at C1 level and willingness to travel when required.

What Will Make You Stand Out

• Braze certifications (Practitioner, Marketer, or equivalent).
• Deep, hands-on experience with the Braze platform, confidently using its full feature set to deliver high-impact campaigns.
• Experience analysing data using SQL.

Why You Will Love Working Here

• Rocket-Fuelled Growth – Big challenges, fast learning, and the chance to level up quicker than anywhere else.
• A Culture That Actually Gives a Damn – Supportive, positive, and built around people who want to see you win.
• A Global Crew – Collaborate with brilliant teammates across Europe, the US, and beyond.
• Remote-First for Life – Work from wherever you feel your best.
• Real Career Momentum – Clear progression, real ownership, and space to grow into your next chapter.
• Moments That Matter – Meetups, events, and team experiences that make the journey unforgettable.

A Few Things to Know Before We Get Started

• Bring Your Own Device – We operate a BYOD policy, so you will use your own kit for work.
• Right to Work – You will need a valid work visa; we are not able to offer sponsorship at the moment.
• ID Checks – We may ask for proof of identity (passport, ID card, or a recent utility bill).
• References – We may request two references, so have names, relationships, and contact details ready.
• For Contractors – Proof of incorporation and up-to-date insurance is required.

A Quick Note on Applications

We receive a high volume of applications, and while we would love to reply to everyone personally, it is not always possible. If you haven’t heard from us within two weeks, it sadly means you haven’t been successful this time. But don’t let that stop you—we are growing fast, and new opportunities open up all the time.

Please ensure that your qualifications closely match the criteria outlined in the job description. Applications not meeting the specified criteria may not be processed or considered for this position.