SDET (Part-time)

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’ve 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’re excited by innovation, love solving complex challenges, and want to help shape the future of digital experiences, you’ll feel right at home here.

 

Every role at Massive Rocket is entrepreneurial. The people who thrive here don’t 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’re building a culture of ownership, collaboration, and growth, and we’re looking for people who want to make a real impact.

 

As an SDET, you'll build the automated testing frameworks that ensure the quality, reliability, and integrity of our customer data ecosystem.

You'll work across data, Martech, and engineering environments to test everything from customer data pipelines and identity resolution to SDK events, APIs, CDP integrations, and downstream activation in platforms such as Databricks, mParticle, Braze, and OneTrust.

This is a hands-on engineering role focused on automating quality rather than manually testing it. You'll write code that tests code, build scalable validation frameworks, and work closely with Data Engineers and Martech teams to identify issues early, prevent regressions, and ensure customer data is accurate, compliant, and ready for activation.

Please note this role is part time (Monday / Tuesday / Wednesday half day) 

• Build automated testing frameworks to validate customer data, schemas, data contracts, and identity resolution across the data ecosystem

 

• 4+ years of experience in SDET, Data QA, Automation Engineering, or a similar software/data testing role, ideally within Martech, Data, or B2C environments

• Experience with mParticle, particularly event ingestion, identity resolution, audience syncs, and downstream activation

• Familiarity with Braze, including Data Track API, Cloud Data Ingestion, event forwarding, or customer data activation

• Experience testing OneTrust consent and preference management frameworks

• Experience with web/app SDK testing and automated customer journey validation

• Experience integrating automated quality checks into CI/CD pipelines using GitHub Actions, GitLab CI, or similar

• Familiarity with Martech, CRM, CDP, or B2C customer data environments

• Bachelor's degree in Computer Science, Data Engineering, Software Engineering, or a related technical field

 

• 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

 

Bring Your Own Device – We operate a BYOD policy, so you’ll use your own kit for work

Right to Work – You’ll need a valid work visa; we’re 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

 

Please note this role is part time (Monday / Tuesday / Wednesday half day)