{"id":3082564,"url":"https://alion.io/job/banco-santander-harness-engineer","title":"Harness Engineer","company":{"id":11879,"name":"Banco Santander","domain":"santander.com","url":"https://alion.io/company/banco-santander","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":86,"open_postings":84,"ghost_share":0,"stale_share":0.75,"repost_share":0.012,"time_to_fill_p50_days":20,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Function Calling","optional":false},{"name":"Git","optional":false},{"name":"Human-in-the-Loop","optional":false},{"name":"IAM","optional":false},{"name":"LLM","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-22T12:41:20Z","employer_posted_date":"2026-10-22","last_verified_at":"2026-10-24T10:05:48Z","board_verified":false,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Harness EngineerCountry:IT STARTS HERE\nSantander (www.santander.com) is evolving from a global, high-impact brand into a technology-driven organization, and our people are at the heart of this journey. Together, we are driving a customer-centric transformation that values bold thinking, innovation, and the courage to challenge what’s possible.\nThis is more than a strategic shift. It’s a chance for driven professionals to grow, learn, and make a real difference.\nOur mission is to contribute to help more people and businesses prosper. We embrace a strong risk culture and all our professionals at all levels are expected to take a proactive and responsible approach toward risk management.\nOur Chief Data & Artificial Intelligence Officer (CDAIO) division is building a world-class AI & Data team to make a difference in the lives of over 170 million people worldwide, through one of the largest banks in the world.\nWe are undergoing one of the biggest transformations in our history and technology is at the heart of our strategy. Join our team to play a part in one of the most important technological projects for the financial sector in the world.\nOur mission is to contribute to helping more people and businesses prosper. We embrace a strong risk culture and all our professionals at all levels are expected to take a proactive and responsible approach toward risk management.\nTHE DIFFERENCE YOU MAKE\nCDAIO / AI TECH is looking for a Harness Engineering to design and deliver the secure, observable, and production-grade harness that enables coding agents across the Knowledge Base Platform and related solutions.\nYou will define how agents connect to repositories, developer tools, CI/CD pipelines, enterprise systems, and platform knowledge, accelerating delivery while preserving security, quality, auditability, and human accountability.\nDefine the architecture and delivery of the coding agent harness across engineering teams, repositories, and platform layers.\nDefine safe agent workflows, roles, execution modes, approval points, escalation paths, and human-in-the-loop controls.\nIntegrate agents with Git workflows, IDEs, issue trackers, documentation, CI/CD, test suites, observability, cloud environments, and internal developer platforms.\nDesign MCP-based and API-based tool integrations with scoped permissions, audit trails, and governed access.\nEmbed agents into delivery workflows for coding, testing, refactoring, documentation, dependency upgrades, build analysis, and deployment preparation.\nEstablish secure SDLC guardrails covering source code, secrets, infrastructure, data, prompt injection, tool misuse, and protected resources.\nDefine evaluation frameworks, benchmarks, regression suites, quality gates, and productivity metrics for agent-assisted engineering.\nEnable AWS cloud-native engineering and ensure agent-generated changes meet security, resilience, observability, cost, and operational standards.\nMentor engineering teams and create reusable patterns, playbooks, reference architectures, and adoption standards.\nWHAT YOU'LL BRING\nOur people are our greatest strength. We value diverse perspectives and empower individuals to make an impact.\n\nProfessional Experience\n8+ years in software, platform, DevOps, cloud, AI engineering, developer platforms, or engineering productivity. (Required)\nProven technical leadership delivering developer platforms, CI/CD automation, internal engineering tools, or AI-assisted engineering workflows. (Required)\nHands-on experience with coding agents, LLM-based development tools, agent orchestration, and human-in-the-loop workflows. (Required)\nExperience integrating source control, CI/CD, issue tracking, documentation, observability, cloud environments, and developer portals. (Required)\nExperience in banking, financial services, or another regulated enterprise environment. (Preferred)\nEducation\nBSc or MSc in Computer Science, Software Engineering, or a related field, or equivalent practical experience. (Required)\nLanguages\nSpanish proficiency. (Required)\nHigh level of English. (Preferred)\nHard Skills\nStrong knowledge of coding agents, orchestration, task decomposition, tool use, retrieval grounding, context management, and safety guardrails. (Required)\nStrong Git, pull request, code review, branch protection, repository permission, and release workflow experience. (Required)\nHands-on Python skills for automation, backend services, validation, and agent tooling. (Required)\nStrong CI/CD, automated testing, quality gates, DevSecOps, deployment governance, rollback, and traceability experience. (Required)\nExperience designing APIs, MCP or comparable agent-tool integrations, scoped authorization, and audit logging. (Required)\nStrong AWS, containers, infrastructure-as-code, observability, security, resilience, and cost-management knowledge. (Required)\nKnowledge of secure SDLC, responsible AI, prompt-injection defenses, data protection, policy-as-code, and compliance controls. (Required)\nExperience with Harness Engineering, internal developer platforms, agent evaluation, or enterprise coding assistants. (Preferred)\n\nSoft Skills\nStrong technical leadership, ownership, mentoring, and ability to create standards in ambiguous environments.\nDeveloper empathy and practical judgment balancing delivery speed, automation, quality, security, governance, and accountability.\nClear communication and effective collaboration across Engineering, Product, Architecture, Security, IAM, Risk, Compliance, and leadership.\nWE VALUE YOUR IMPACT\nYour contribution matters, and it’s recognized. You can expect a fair, competitive reward package that reflects the impact you create and the value you deliver. But we know rewards go beyond numbers.\nWe’reenable our teams to go beyond through global opportunities and broad career paths.\nFlexibility that works. Enjoy a hybrid working models -some days remote, some days onsite with your team-along with flexible hours.\nLearning for life. Access hundreds of courses on our platforms, including exclusive access to our global learning space: Santander Open Academy (www.santanderopenacademy.com)\nCompetitive rewards. Receive a highly competitive salary with performance-based bonuses, motivating you to keep growing with us.\nFinancial advantages. Benefit frompreferential banking terms, special interest rates on loans, life insurance, and more.\nYour health is our priority. ThroughBeHealthy, our global wellness programme, we promote Holistic wellbeing.\nWe know family is everything. That’s why we offer childcare support and family-friendly programmes tailored to each life stage.\nAlways by your side. Get access to Santander Contigo, our program for employees and their families offering legal, emotional, and administrative advisory services.\nExtra benefits. Gym/WellHub membership, medical centers in some of our facilities, meal subsidy, parking, shuttle service from various points in Madrid, as well as exclusive discounts and offers for Santander employees. And that’s only the beginning-we’ll tell you more when you join!\nWe’re here to keep you motivated, help you reach your goals, and celebrate your progress, every step of the way.\nWe make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify, and build.\nThe personal data you provide as well as any data generated during the selection process are confidential and will be processed by Open Digital Services, S.L. with registered office at Plaza de Santa Bárbara 2, 28004 (Madrid), Madrid, Spain for the sole purpose of managing your participation in the selection processes and, where appropriate, to formalise your recruitment.\nFor further information about your rights and data protection, please read the Open Digital Services Privacy Policy applicable to this type of data processing.\nLOCAL COMPLIANCE\nSantander is proud of being an organization where there are equal opportunities regardless of age, gender, disability, civil status, race, religion or sexual orientation. We are committed to providing an inclusive and accessible application process for all candidates.\nWHAT TO DO NEXT\nIf this sounds like a role you are interested in, then please apply.\nREADY TO TAKE THE NEXT STEP IN YOUR JOURNEY?","description_format":"text","description_chars":8256,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"Spanish","level":"Advanced (C1)","optional":false},{"language":"English","level":"All levels","optional":false}]},"benefits":["Hybrid work","Life insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Commercial & Retail Banks"],"lifecycle":[{"event":"open","at":"2026-10-22T12:41:20Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"green card filings: 1","filings_12m":0,"filings_prev_12m":6,"green_card_filings_12m":1,"median_offered_wage_usd":192500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0},{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Graduate Trainee, Senior or Specialist Worker, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Graduate Trainee; Global Business Mobility: Senior or Specialist Worker; 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":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":3,"expected_fill_days":20,"reasons":["conf:43","stale_co","velocity","win:early","comp:brand"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/banco-santander-harness-engineer","json_url":"https://alion.io/job/banco-santander-harness-engineer.json","meta":{"generated_at":"2026-10-26T16:22:29Z","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":21807,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-27T00:00:00Z"}},"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":11879},"rest":"https://alion.io/mcp/rest/get_company?id=11879"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbanco-santander-harness-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%2Fbanco-santander-harness-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%2Fbanco-santander-harness-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/banco-santander-harness-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbanco-santander-harness-engineer"}]}