{"id":3098736,"url":"https://alion.io/job/moneyhub-principal-engineer","title":"Principal Engineer","company":{"id":51385,"name":"Moneyhub","domain":"moneyhub.com","url":"https://alion.io/company/moneyhub","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["London, United Kingdom","Bristol, United Kingdom","Ljubljana, Slovenia"],"countries":["GB","SI"],"hiring_countries":["GB","SI"],"hiring_countries_total":2,"salary":null,"salary_estimate":{"min_usd":96000,"max_usd":190000,"period":"year","method":"role_seniority_country_cell","sample_n":53},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"Apache Kafka","optional":true},{"name":"AWS","optional":true},{"name":"ISO 27001","optional":true},{"name":"Kubernetes","optional":true},{"name":"Machine Learning","optional":true},{"name":"PostgreSQL","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-22T16:57:22Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-22T16:57:22Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About us\nMoneyhub empowers leading financial services organisations to understand their clients’ needs better. We provide the data services and embedded technologies required to deliver highly personalised, lifelong financial relationships.\nWe are a data and payments company building ISO 27001-certified software for Open Banking, Open Finance, and Open Data. Our FCA-regulated platform lets organisations turn financial data into personalised digital experiences and initiate payments and hundreds of organisations across finance, media and retail rely on it.\nThe role\nWe are seeking an experienced engineer who has built things people actually use and still wants to write the code.\nYou will have taken products from nothing to real users, more than once and seen what happens to them afterwards. We will ask what you shipped, who used it and what you did yourself. We mean end users, not just other engineers.\nScale and performance matter here - clients notice when things are slow. You know how to find the bottleneck rather than guess at it. You are comfortable reading a flame chart and you will follow a problem down as far as it goes, whether that is a React component re-rendering because of a misused useEffect or cache locality in the hot path of an algorithm.\nYou will have seen approaches fail in different companies and codebases and you know why. People will want your view before they start something and you will have influenced what a team builds without being their manager.\nYou also need to be using agentic engineering already and treating it as a multiplier. One good engineer can now take on work that used to need a team. We want to hear your opinions and your approach.\nWhat you would work on\nIn your first 6-12 months, you might:\nShip a committed piece of work to production in your first three months, and come out of it with two or three platform improvements you think we should take on next.\nTake a project of your own from prototype to production, such as redesigning part of an event processing or data pipeline so it handles more load, more reliably.\nSet the standard for agentic engineering: show the team the workflows that work for you, and turn them into patterns other teams adopt.\nSuccess in this role looks like a steady record of shipped work, with at least two of your architectural patterns or AI standards in use across engineering.\nHow you would work\nYou would join our experienced engineering team - we are about 40 software/platform/data engineers and data scientists. We use Shape Up, and you would work within it: shaping bets, delivering committed work, and getting things over the line with the teams.\nOur culture is based on trust, and we empower people to deliver in the way that suits them best. For this role, that means real say over how you solve problems and some latitude over what you pick up, alongside the expectation that your work is visible, shared with your colleagues and pointed at what the business needs. In practice, you might have a committed bet, something you are improving because it needs it, and something you are exploring for a future cycle. Judging which deserves your time, and being open about it, is a big part of the job.\nThis is an individual contributor role. No line management, and no moving away from the code.\nOur stack\nMost of our platform is TypeScript on Node. Python is used across data science and machine learning. We use Kafka for events, Postgres for most of our data, and Kubernetes on AWS to run it all.\nWe want someone comfortable across data science, Python, Node, React and Rust. You do not need to be an expert in each, but none of them should put you off. If you have not used a language before, we expect you to pick it up.\nRequirements\nWhat we’re looking for\nExperience at several startups and on systems at real scale, shipping software that people actually used\nA track record of building and running software in production across different companies and codebases, including the unglamorous years after launch\nThe person others turn to when something is hard or has gone wrong, with experience setting technical direction without authority over the people doing the work\nA habit of finding where a system slows down under real load, working out why and fixing it, using profilers and flame charts rather than guesswork. Equally at home with a front-end rendering problem or the memory behaviour of a tight loop\n Comfort across Python, Node, React, Rust and data science. Not an expert in each, but none of them a worry\nThe ability to work properly with data scientists. No need to be one, but an understanding of how to judge a model (precision, recall and F1 score) and what the numbers mean for the product and for clients\nStill hands-on, with every intention of staying that way\nAlready using agentic tools day to day and getting more done because of them\nAn eye for work worth doing and the drive to make the case for it rather than wait for a brief\nSound judgement on security, privacy and client trust. This is regulated financial software\nClear communication, whether with engineers, senior stakeholders or clients\nNice to have: experience with open banking, connections or identity systems.\nProbably not a fit if\nYou cannot point to software that end users used, or to technical decisions of yours that people followed.\nYou want to stay in one language, or only the front end or the back end.\nYou are unsure about agentic engineering, or see it as a shortcut.\nYou only want a defined set of tickets.\nYou would rather work outside a team process than within one.\nYou want a management role, or architecture at a distance from the codebase.\nHow to apply\nApply via the link below.\nQuestions about the role? Please contact Dilshan Rukunayake, Principal TA Partner, \nRight to work and screening\nYou must have the right to work in the UK. As an FCA-regulated firm, offers are subject to pre-employment screening, including reference, credit and criminal record checks.\nBenefits\n5% employer pension contribution from your first day, with a 3% employee contribution\n25 days’ holiday plus bank holidays, rising to 30 days after two years\nOption to take UK bank holidays at other times, on days of significance to you\nHoliday purchase scheme\nPrivate medical insurance, including cover for pre-existing conditions, plus dental and optical benefit\nThree months’ Moneyhubber Family Pay when you become a new parent\nPermanent health insurance and life cover well above the industry standard\nEmployee assistance programme\nLife event leave\nProfessional development support, with a dedicated allowance of time and money\n£750 towards professional memberships\nRemote working support, including access to co-working spaces and help setting up your home office\nHigh-spec laptop\nCycle to work scheme\nEV car scheme","description_format":"text","description_chars":6841,"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":["Health insurance","Home office","Professional development"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"},{"name":"Slovenia","iso":"SI","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Software & Embedded Finance","Investing Apps & Robo-Advisors"],"lifecycle":[{"event":"open","at":"2026-10-22T16:57:22Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":28,"reasons":["conf:8","win:early"],"computed_at":"2026-10-23T01:28:11Z"},"pay":null,"html_url":"https://alion.io/job/moneyhub-principal-engineer","json_url":"https://alion.io/job/moneyhub-principal-engineer.json","meta":{"generated_at":"2026-10-23T01:28:11Z","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":2414,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-24T00:00:00Z"}},"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":51385},"rest":"https://alion.io/mcp/rest/get_company?id=51385"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fmoneyhub-principal-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%2Fmoneyhub-principal-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%2Fmoneyhub-principal-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/moneyhub-principal-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fmoneyhub-principal-engineer"}]}