{"id":4167961,"url":"https://alion.io/job/massive-rocket-software-development-engineer-in-test-sdet","title":"Software Development Engineer in Test (SDET)","company":{"id":7946,"name":"Massive Rocket","domain":"massiverocket.com","url":"https://alion.io/company/massive-rocket","size_band":"11-50","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":83,"open_postings":6,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":35,"computed_at":"2026-11-12T10:38:37Z"}},"role":"QA","role_family":"QA","seniority":null,"employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":true,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Braze","optional":false},{"name":"Databricks","optional":false},{"name":"dbt","optional":false},{"name":"Delta Lake","optional":false},{"name":"GDPR","optional":false},{"name":"Jira","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"Snowflake","optional":false},{"name":"SQL","optional":false},{"name":"CI/CD","optional":true},{"name":"GitHub Actions","optional":true},{"name":"GitLab CI","optional":true}],"status":"live","first_seen_at":"2026-11-12T10:39:06Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T13:57:19Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Who Are Massive Rocket?\nMassive 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.\nEvery 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.\nWho Are We Looking to Add to Our Team?\nAs an SDET (Martech & Data) at Massive Rocket, you’ll design, build and maintain the automated testing architecture that protects the integrity, reliability and velocity of a customer data ecosystem. This is a fixed-term contract role. Working within an embedded team, you’ll be the engineering gatekeeper of the “Golden Record” as the core stack is optimised, including Databricks, mParticle, Braze, OneTrust and ThoughtSpot.\nRather than checking files by hand, your focus is writing code that tests code. You’ll build automated validation frameworks for complex data pipelines, simulate user behaviour across web and app SDKs, mock cross-platform API integrations, and make sure automated personalisation and experimentation frameworks scale without regression. You’ll work closely with Data Engineers to triage anomalies, resolve pipeline failures quickly and stop issues coming back.\nYou’ll thrive here if you enjoy building test automation frameworks from scratch, owning defects end to end, and keeping data accurate, compliant and ready for activation.\nWhat Will You Do?\nDesign and implement automated validation frameworks that test data contracts, schema compliance and identity resolution/stitching logic in Databricks before data reaches downstream activation channels\nBuild and maintain automated UI and behavioural test scripts that simulate real-world customer journeys across web and app\nVerify programmatically that behavioural events, mParticle tags and OneTrust consent tokens fire accurately at the application layer\nValidate high-criticality data flows across the Databricks > mParticle > Braze > OneTrust ecosystem\nWrite automated integration scripts and mock API payloads to confirm actions propagate and correctly suppress or activate users across platforms\nDesign and run end-to-end tests for data collection pipelines (POS, Web, App, CRM), making sure data is cleaned, standardised and transformed accurately for downstream use\nValidate data freshness and latency against near real-time SLAs\nEstablish and maintain automated data validation and hygiene rules that detect corrupted records and schema drift in near real-time\nAudit data flows to make sure consent and preference management is strictly followed across every system, in line with global privacy regulations such as GDPR and UK GDPR\nWhat Makes You a Great Fit\nMastery of SQL for complex data validation, including writing scripts that identify anomalies across millions of records\nProficiency in Python for building automated test suites and interacting with APIs\nProven experience establishing data test automation frameworks from scratch\nHands-on experience testing within Databricks (or an equivalent cloud lakehouse/warehouse), with a deep understanding of Delta Lake or similar architectures\nProven experience validating complex data transformations across near real-time/streaming and batch pipelines, with familiarity with orchestration tools such as Airflow or dbt\nExperience validating data flows through a Customer Data Platform, particularly mParticle, including event ingestion, identity resolution and audience syncs into downstream engagement platforms\nSkill in triaging data anomalies, tracking pipeline failures in tools like Jira and working closely with Data Engineers to resolve issues quickly and prevent regression\nExperience testing REST APIs and validating data payloads between systems (for example, checking that a POS event correctly triggers a Braze data point)\nA Bachelor’s degree in Computer Science, Data Engineering or a related technical field\nBonus points if you have:\nFamiliarity with how data is ingested into Braze via the Data Track API or Cloud Data Ingestion (CDI)\nExperience testing CDP-to-engagement data flows, such as mParticle audience syncs and event forwarding into Braze\nExperience testing privacy compliance and consent frameworks using tools like OneTrust\nExperience embedding data quality checks into CI/CD pipelines (GitHub Actions, GitLab CI)\nWhy You’ll Love Working Here\nRocket-Fuelled Growth - Big challenges, fast learning, and the chance to level up quicker than anywhere else\nA Culture That Actually Gives a Damn - Supportive, positive, and built around people who want to see you win\nA Global Crew - Collaborate with brilliant teammates across Europe, the US, and beyond\nRemote-First for Life - Work from wherever you feel your best\nReal Career Momentum - Clear progression, real ownership, and space to grow into your next chapter\nMoments That Matter - Meetups, events, and team experiences that make the journey unforgettable\nA Few Things to Know Before We Get Started\nBring Your Own Device - We operate a BYOD policy, so you’ll use your own kit for work\nRight to Work - You’ll need a valid work visa; we’re not able to offer sponsorship at the moment\nID Checks - We may ask for proof of identity (passport, ID card, or a recent utility bill)\nReferences - We may request two references, so have names, relationships, and contact details ready\nA Quick Note on Applications\nWe receive a high volume of applications, and while we’d love to reply to everyone personally, it’s 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’re growing fast, and new opportunities open up all the time.","description_format":"text","description_chars":6306,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Marketing Automation","IT Consulting & Digital Transformation","Digital Marketing","Data Engineering & Migration Services"],"lifecycle":[{"event":"open","at":"2026-11-12T13:57:19Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"Licensed UK visa sponsor (Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker","cap_exempt":false,"checked_at":"2026-11-12T09:37:45+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":35,"reasons":["conf:2","win:early"],"computed_at":"2026-11-12T16:04:57Z"},"pay":null,"html_url":"https://alion.io/job/massive-rocket-software-development-engineer-in-test-sdet","json_url":"https://alion.io/job/massive-rocket-software-development-engineer-in-test-sdet.json","meta":{"generated_at":"2026-11-12T16:04:57Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":33630,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":7946},"rest":"https://alion.io/mcp/rest/get_company?id=7946"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmassive-rocket-software-development-engineer-in-test-sdet"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fmassive-rocket-software-development-engineer-in-test-sdet"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fmassive-rocket-software-development-engineer-in-test-sdet"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/massive-rocket-software-development-engineer-in-test-sdet\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmassive-rocket-software-development-engineer-in-test-sdet"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4167961}},{"tool":"search_jobs","arguments":{"company":"massiverocket.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4167961},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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