{"id":461963,"url":"https://alion.io/job/aveni-senior-software-engineer-python","title":"Senior Software Engineer (Python)","company":{"id":177880,"name":"Aveni","domain":"aveni.ai","url":"https://alion.io/company/aveni","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","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":{"min_usd":86000,"max_usd":163000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":28},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"Amazon EventBridge","optional":false},{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"DynamoDB","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Python","optional":false},{"name":"JavaScript","optional":true},{"name":"Node JS","optional":true},{"name":"Terraform","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-07-29T14:25:47Z","employer_posted_date":"2026-07-29","last_verified_at":"2026-10-25T20:10:44Z","board_verified":true,"closed_at":null,"days_open":88,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":88},"description":"Aveni is redefining how financial institutions use AI. We build real, production-ready agentic systems that reshape how banks, advisers and financial services firms operate, replacing fragmented processes with intelligent, end-to-end workflows.\nWe have been recognised as Fintech of the Year for two consecutive years and awarded Best Specialist Technology Service at the Professional Adviser Awards 2025. Backed by leading investors including Puma Private Equity, and commercially supported by Lloyds Banking Group and Nationwide Building Society, we previously completed one of Scotland’s largest Series A rounds. Since then, we’ve continued to grow rapidly as adoption of AI in financial services accelerates, and we’re now scaling our engineering organisation to meet that demand.\nOur engineering team includes experienced software engineers and PhD-level AI specialists, with strong ties to the University of Edinburgh, giving you access to exceptional expertise and opportunities for continuous learning as part of the day-to-day work.\nThe Role\nAveni is building next-generation AI systems for UK financial services, where safety, compliance, and trust are non-negotiable. We're hiring a Senior Software Engineer to work on AI and agentic platform capabilities that power intelligent, automated workflows for financial services. This is a high-impact role building foundational technology that underpins Aveni's AI-first strategy.\nYour work will focus on:\nYou'll work on systems that govern how AI agents behave in regulated financial contexts, designing and implementing policy enforcement, safety controls, behavioural monitoring, and evaluation frameworks. This work sits at the intersection of platform engineering, AI/ML systems, and compliance-by-design architecture. You'll be joining at a pivotal moment as Aveni scales from startup to enterprise-grade AI FinTech, working on problems that matter: making AI safe, auditable, and trustworthy in high-stakes financial environments.\nWhat You’ll Be Doing\nBuild Production-Grade Systems\nDesign and implement scalable Python services powering AI-driven workflows\n\nDevelop resilient, observable systems with strong error handling and compliance traceability\n\nWork within a serverless, event-driven AWS architecture\n\nOwn Delivery End-to-End\nTake ownership of features from design through to production\n\nCollaborate with Product, AI Platform, and Compliance teams\n\nContribute to sprint planning, estimation, and delivery\n\nShape AI & Agentic Systems\nBuild intelligent workflows using LLMs and agentic architectures\n\nIntegrate AI models into production systems\n\nDesign guardrails, policy enforcement, and behavioural monitoring for AI agents\n\nMentor & Elevate the Team\nSupport and guide junior and mid-level engineers\n\nLead code reviews and promote engineering best practices\n\nContribute to documentation, demos, and knowledge sharing\n\nDrive AI-Augmented Engineering\nUse AI coding tools to accelerate development and improve quality\n\nHelp define best practices for AI-assisted software engineering\n\nWhat We’re Looking For\nMust Have\nStrong Python expertise in production environments\n\nExperience building cloud-native systems on AWS (Lambda, DynamoDB, S3, EventBridge)\n\nExperience working with LLMs or AI/ML systems\n\nStrong understanding of APIs, async systems, and scalable architecture\n\nNice to Have\nExperience with AI safety, guardrails, or policy enforcement\n\nBackground in agentic systems or autonomous workflows\n\nExperience in financial services or regulated environments\n\nFamiliarity with Node.js / TypeScript, Terraform or CDK\n\nKnowledge of observability tools and ML fundamentals\n\nYou’ll Thrive If You Are\nPragmatic and able to balance speed with long-term quality\n\nCurious about AI, especially safety and responsible usage\n\nComfortable working in a fast-moving scale-up environment\n\nA strong communicator who can explain complex ideas clearly\n\nPassionate about mentoring and raising team standards\n\nCareer Growth\nThis role offers a clear path into Staff or Lead Engineer positions, where you’ll:\nDrive architectural decisions across multiple teams\n\nOwn complex, cross-cutting AI systems\n\nShape Aveni’s long-term AI platform strategy\n\nJoin Us in Making a Difference\nAt Aveni, we believe that diversity drives innovation. We’ve built our business to ensure an inclusive workplace where everyone feels valued and empowered to contribute their best work. If you’re passionate about technology and its ability to drive positive change for the future of financial services, we’d love to hear from you. Even if you don’t meet 100% of requirements, we’d like to hear from you anyway if you believe you’d fit in. Apply now to join us on our mission to transform the financial services industry through AI.\nBenefits at Aveni. What you’ll love:\nRemote-first working across the UK\n\nWork abroad policy\n\nCo-working spaces available\n\n34 days holiday (including flexible bank holidays) and your birthday off\n\nCompany-wide off-sites\n\nOptional Personal Development Plan\n\nFlexible benefits platform\n\nProtection essentials including Life Insurance, Income Protection, Critical Illness cover, and Pension (up to 5% matched employer contribution with optional increased contributions)\n\nPrivate health and dental care\n\nPotential share options\n\nEnhanced family leave","description_format":"text","description_chars":5304,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Equity","Life insurance","Parental leave","Stock options"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Natural Language Processing","RegTech, AML & Compliance","Financial AI"],"lifecycle":[{"event":"open","at":"2026-09-06T11:22:22Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"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":"2026-10-24T06:24:00+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":16,"band":"cold","label":"Long shot","p_open":1,"p_active":0.581,"p_room":0.28,"age_days":87,"expected_fill_days":42,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-25T05:49:26Z"},"pay":null,"html_url":"https://alion.io/job/aveni-senior-software-engineer-python","json_url":"https://alion.io/job/aveni-senior-software-engineer-python.json","meta":{"generated_at":"2026-10-25T23:34:29Z","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":33294,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"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":177880},"rest":"https://alion.io/mcp/rest/get_company?id=177880"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Faveni-senior-software-engineer-python"},{"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%2Faveni-senior-software-engineer-python"},{"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%2Faveni-senior-software-engineer-python"},{"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/aveni-senior-software-engineer-python\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Faveni-senior-software-engineer-python"}]}