{"id":2706952,"url":"https://alion.io/job/xelix-data-engineer","title":"Data Engineer","company":{"id":12258,"name":"Xelix","domain":"xelix.com","url":"https://alion.io/company/xelix","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":74000,"max_usd":167000,"period":"year","method":"role_country_seniority_unknown","sample_n":159},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon DocumentDB","optional":false},{"name":"Amazon Redshift","optional":false},{"name":"AWS","optional":false},{"name":"ClickHouse","optional":false},{"name":"DuckDB","optional":false},{"name":"DynamoDB","optional":false},{"name":"HIPAA","optional":false},{"name":"ISO 27001","optional":false},{"name":"OpenSearch","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prefect","optional":false},{"name":"Python","optional":false},{"name":"SOC 2","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-10-16T12:36:45Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-10-17T19:48:34Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"About us\nAt Xelix, we work with some of the world’s largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows.\nXelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team of over 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together.\nIn this role you’ll grow, be challenged and help shape the future of Xelix. If you’re excited about building something special with us, we’d love to hear from you.\nAbout the role\nWe’re hiring a Data Engineer to join our growing Platform Team and help shape the data foundations behind our products. As our customer base and data volumes grow, you’ll make sure our production data architecture, pipelines and storage remain reliable, scalable and cost-effective.\nThis is a hands-on 1role focused on the systems that power our products, rather than internal BI or building a company-wide data warehouse. You’ll improve data models and database performance, help us choose the right storage and processing tools for each workload, and strengthen data quality and retention practices. Projects could include moving large and non-operational data out of PostgreSQL, improving pipeline orchestration with Prefect, and evolving our search and analytical capabilities with technologies such as OpenSearch and column databases.\nYou’ll bring the experience and judgement to assess our current architecture independently, constructively challenge established practices, identify the most valuable improvements, and take them from proposal through to production. Working closely with product engineers, AI engineers and DevOps, you’ll combine practical delivery with longer-term architectural thinking. Whether you’re an experienced mid-level engineer ready for broader ownership or already operating at senior level, this is an opportunity to take a dedicated data engineering role with a meaningful impact on how Xelix scales. At senior level, you’ll lead data architecture decisions across teams and own the roadmap for improving our production data systems.\nWhat you'll be doing\nImprove our production data architecture.\n\nBuild reliable pipelines with tools such as Prefect.\n\nOptimise PostgreSQL performance and data models.\n\nChoose the right storage, search and processing tools.\n\nImprove data quality and retention practices.\n\nDeliver changes alongside product, AI and DevOps teams.\n\nStrengthen data access, retention and auditability in partnership with security, compliance and engineering teams.\n\nWhat you’ll bring\nProfessional experience owning the architecture of production data systems in AWS and their improvements.\n\nExperience with data access controls, retention and auditability requirements in regulated environments (SOC 1, SOC 2, HIPAA, ISO 27001 or similar).\n\nGood judgement on storage and processing trade-offs.\n\nClear communication and a hands-on, collaborative approach. A focus on reliability, data quality and security.\n\nStrong SQL, PostgreSQL and data modelling skills.\n\nExperience with NoSQL databases (like MongoDB, DocumentDB or DynamoDB) and warehousing solutions (like DuckDB, ClickHouse, Redshift)\n\nSolid Python and data pipeline engineering skills.\n\nConfidence using AI tools for development, investigation and documentation, with sound judgement about their value and limitations.\n\nWhat we offer in return\nCompetitive salary of £50,000-£70,000 depending on experience\n27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days\nHybrid working with one day a week from our dog-friendly Hoxton office and on-site gym\nComprehensive private medical & dental cover with Vitality\nEnhanced parental leave pay\nLearning & development culture - £1,000 personal annual budget\nWe’re carbon-neutral and are working towards ambitious carbon reduction goals\nLots of team socials & activities\nAnnual team retreat\n\nWant to learn more?\nAbout us\n\nXelix blog\n\nXelix news\n\nXelix glassdoor\n\nWe believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate!\nIf you're a recruiting agency - we have an existing list of agencies we work with and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach.\nThis is a full-time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.\nInterview Process\nWhile the exact process may vary slightly depending on the role, our typical interview stages are:\nIntroductory Call - A short Teams conversation with a Talent Partner to discuss your background and the opportunity.\n\nHiring Manager Interview - A 30-45 minute Teams meeting to explore your experience and fit for the team.\n\nTechnical Task or Presentation - A role-relevant exercise to demonstrate your skills and approach.\n\nFinal On-site Interview - An in-person meeting with our senior leadership team and co-founders at our office.\n\nWe strive to make the process clear, efficient, and respectful of your time.\nWe welcome the responsible use of AI for research and interview preparation, but ask that it isn't used to generate answers during live interviews. We also believe in being transparent - we use Metaview's AI note-taker during interviews so our interviewers can stay fully present. If you'd prefer us not to use it, just let your interviewer know. While you may need to answer eligibility questions as part of your application, we do not use AI to review or make decisions on applications - every application is reviewed fairly by a member of our Talent team.","description_format":"text","description_chars":6176,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Annual leave","Hybrid work","Parental leave"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Fraud Detection","Financial AI","Accounting & Tax Software"],"lifecycle":[{"event":"open","at":"2026-10-16T12:56:06Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":27,"reasons":["conf:1","velocity","win:early"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/xelix-data-engineer","json_url":"https://alion.io/job/xelix-data-engineer.json","meta":{"generated_at":"2026-10-17T21:13:46Z","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":5707,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"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":12258},"rest":"https://alion.io/mcp/rest/get_company?id=12258"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fxelix-data-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"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%2Fxelix-data-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"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%2Fxelix-data-engineer"},{"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/xelix-data-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fxelix-data-engineer"}]}