{"id":3194723,"url":"https://alion.io/job/tensorx-senior-full-stack-engineer","title":"Senior Full Stack Engineer","company":{"id":2153149,"name":"TensorX","domain":"tensorx.ai","url":"https://alion.io/company/tensorx","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"HireHive","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dublin, Ireland"],"countries":["IE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":80000,"max_usd":166000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":38},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"CI/CD","optional":false},{"name":"Claude Code","optional":false},{"name":"Docker","optional":false},{"name":"Next.js","optional":false},{"name":"Node JS","optional":false},{"name":"OpenAI","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Radix UI","optional":false},{"name":"React.js","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"shadcn/ui","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"Amazon EC2","optional":true},{"name":"Amazon ECS","optional":true},{"name":"Amazon S3","optional":true},{"name":"AWS","optional":true},{"name":"AWS Lambda","optional":true},{"name":"Context Engineering","optional":true},{"name":"Fine-tuning","optional":true},{"name":"Go","optional":true},{"name":"JavaScript","optional":true},{"name":"Prompt Engineering","optional":true},{"name":"Python","optional":true},{"name":"RAG","optional":true},{"name":"Tailwind CSS","optional":true}],"status":"live","first_seen_at":"2026-09-10T11:45:53Z","employer_posted_date":"2026-09-10","last_verified_at":"2026-10-25T22:26:15Z","board_verified":true,"closed_at":null,"days_open":45,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":45},"description":"Overview\nTensorX is a sovereign AI infrastructure platform headquartered in Dublin. We run frontier open-weight large language models on our own NVIDIA Blackwell GPUs in European datacentres, under EU jurisdiction. Customers reach them through a drop-in OpenAI-compatible API. Nothing they send is retained after the request completes. We serve regulated enterprises in finance, healthcare and government as well as developers and AI platforms. We help them adopt AI without compromising on data privacy, compliance or performance.\nWe are looking for Full-Stack Engineers at various levels to join our growing engineering team. You will take ownership of features across the entire product surface, from our customer-facing dashboard and billing systems through to our backend API services and infrastructure tooling. This is a hands-on, high-impact role in a fast-moving scaleup where your work will directly shape the platform our customers rely on.\nYou will work across multiple projects, primarily in TypeScript, spanning a React/Next.js frontend and a Node.js/Express API layer backed by PostgreSQL and Redis/Valkey. Frontend development is a key part of this role, and you will be responsible for building the interfaces our customers and their agents interact with daily. We are an AI-native team. Tools such as Claude Code and Codex are part of our daily workflow and materially accelerate how we build and operate systems. We value engineers who can deliver polished, accessible user experiences while also contributing to robust backend services.\nResponsibilities\nFeature Delivery - Design, build and ship end-to-end features spanning the frontend dashboard, REST API and database layers, taking work from specification through to production deployment.\n\nFrontend Development - Build responsive, accessible and performant interfaces using React and Next.js with server-side rendering, middleware and modern routing patterns. Implement design systems using headless component primitives and utility-first CSS.\n\nBackend & API Development - Develop and maintain RESTful API services in Node.js/Express with full TypeScript type safety. Design relational database schemas and write performant SQL. Implement caching, rate limiting and background job processing.\n\nTesting & Reliability - Write and maintain automated tests across the stack, including unit, integration and end-to-end tests. Champion testing best practices and help build a culture of confidence in deployments.\n\nAuthentication & Security - Own and evolve our authentication and authorisation systems, including JWT-based auth flows, role-based access control and security hardening throughout the platform.\n\nPayments & Integrations - Build and maintain third-party integrations including payment processing, cryptocurrency payment flows, transactional email, bot protection and customer messaging.\n\nInfrastructure & DevOps - Manage containerised development and deployment workflows using Docker within a cloud-native environment. Maintain CI/CD pipelines and contribute to platform reliability.\n\nCode Quality & Collaboration - Participate in code reviews, contribute to architectural decisions and help establish best practices. Share knowledge and support your teammates across the engineering team.\n\nSkills & Experience\n5+ years of professional experience building full-stack web applications\n\nAdvanced proficiency in TypeScript across frontend and backend codebases\n\nStrong frontend skills with React and Next.js (SSR, App Router, middleware), headless component libraries (e.g. Radix UI, shadcn/ui) and utility-first CSS frameworks\n\nSolid backend experience with Node.js, Express, PostgreSQL (schema design, raw SQL) and Redis/Valkey\n\nPractical experience with authentication systems, role-based access control and web security practices\n\nFamiliarity with payment platform integration (e.g. Stripe). Experience with cryptocurrency payment protocols is desirable\n\nExperience with Docker and containerised deployment workflows\n\nComfortable using AI-assisted development tools (e.g. Claude Code, Codex) as part of your daily workflow\n\nA clear and concise communicator who thrives in ambiguity and can articulate technical decisions to both technical and non-technical audiences\n\nNice to Have\nExperience working with large language models, including areas such as prompt engineering, context engineering, fine-tuning, RAG, evaluation and model deployment\n\nExperience with AWS and related services (e.g. EC2, ECS, S3, Lambda, CloudFront)\n\nExposure to Python and Golang\n\nEducation & Qualifications\nBSc/MSc in Computer Science, Software Engineering or a related technical discipline OR equivalent practical experience\n\nRemuneration\nHighly competitive package, dependent on experience\n\n25 days paid annual leave\n\nHybrid working from our centrally located Dublin office\n\nFree inference tokens!\n******* NO AGENCY ASSISTANCE REQUIRED *******","description_format":"text","description_chars":4907,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Annual leave","Hybrid work"],"hiring_locations":[{"name":"Ireland","iso":"IE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Compute & Inference","AI Chips & Accelerators"],"lifecycle":[{"event":"open","at":"2026-10-24T03:54:25Z"}],"visa":[],"liveness":{"score":34,"band":"fade","label":"Fading","p_open":1,"p_active":0.622,"p_room":0.55,"age_days":44,"expected_fill_days":30,"reasons":["conf:2","win:tail"],"computed_at":"2026-10-25T05:49:26Z"},"pay":null,"html_url":"https://alion.io/job/tensorx-senior-full-stack-engineer","json_url":"https://alion.io/job/tensorx-senior-full-stack-engineer.json","meta":{"generated_at":"2026-10-25T23:28:32Z","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":33133,"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":2153149},"rest":"https://alion.io/mcp/rest/get_company?id=2153149"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftensorx-senior-full-stack-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%2Ftensorx-senior-full-stack-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%2Ftensorx-senior-full-stack-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/tensorx-senior-full-stack-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftensorx-senior-full-stack-engineer"}]}