{"id":1253808,"url":"https://alion.io/job/vinova-full-stack-engineer","title":"Full Stack Engineer","company":{"id":175396,"name":"Vinova","domain":"vinova.sg","url":"https://alion.io/company/vinova","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":7000,"max":8400,"currency":"SGD","period":"month","gross":true,"usd_annual":78924},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"AWS Bedrock","optional":false},{"name":"FastAPI","optional":false},{"name":"Flowise","optional":false},{"name":"Function Calling","optional":false},{"name":"LangChain","optional":false},{"name":"LangGraph","optional":false},{"name":"Least Privilege","optional":false},{"name":"LlamaIndex","optional":false},{"name":"LLM","optional":false},{"name":"n8n","optional":false},{"name":"OpenSearch","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"RAG","optional":false},{"name":"State Management","optional":false},{"name":"Tool Use","optional":false}],"status":"live","first_seen_at":"2026-09-22T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-09-22T00:00:00Z","board_verified":false,"closed_at":null,"days_open":9,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":9},"description":"Company Overview\nVinova is an award-winning development company specializing in mobile, web, and enterprise applications. Since 2010, it has delivered global projects in IoT, blockchain, fintech, networking, and ecommerce, focusing on quality, flexibility, and speed.\nJob Summary\nYou will lead the design and delivery of AI-enabled backend applications, collaborating closely with business units to build scalable, secure, and maintainable solutions that drive measurable outcomes.\nResponsibilities\nEmbed with business units to analyze operational workflows, identify pain points, and translate needs into prioritized use cases, user stories, and measurable success criteria.\nFacilitate discovery sessions to challenge assumptions and shape solution designs aligned with business goals.\nRapidly prototype AI-enabled applications and workflows, validate with users, and iterate to balance speed with maintainability.\nDesign and implement reliable AI workflows and agents using Python-based frameworks and orchestration tools such as LangGraph, LangChain, or n8n, integrating deterministic steps, LLM reasoning, tool calling, state management, human approvals, and exception handling.\nDevelop custom backend services, APIs, integrations, authentication, workflow logic, and lightweight user interfaces tailored to business use cases.\nDesign and build robust data ingestion, transformation, and retrieval pipelines integrating enterprise systems, databases, document repositories, APIs, and search/vector services while ensuring data quality, lineage, and access controls.\nEngineer secure, scalable backend services and relational data models using Python, FastAPI, and PostgreSQL; diagnose and resolve complex integration, performance, and state-management issues.\nDefine AI solution evaluation datasets and acceptance criteria; test quality, reliability, latency, cost, and tool-call success; implement tracing and monitoring; and continuously improve prompts, retrieval, workflows, and safeguards.\nApply secure engineering practices including least-privilege access, data protection, prompt-injection defenses, output controls, auditability, and human oversight in compliance with government policies and risk profiles.\nManage production readiness, testing, rollout, documentation, user enablement, support, and knowledge transfer; track adoption and business outcomes; and incorporate field learnings into reusable patterns and platform improvements.\nRequired competencies and certifications\n5+ years of software engineering experience.\nStrong proficiency in Python or another modern backend language.\nStrong experience with relational databases, preferably PostgreSQL.\nHands-on experience building LLM-enabled applications, RAG solutions, tool-calling agents, or automated workflows using frameworks such as LangGraph, LangChain, LlamaIndex, n8n, or equivalent.\nPractical experience deploying and operating cloud-native applications.\nPreferred competencies and qualifications\nFamiliarity with AWS and services such as Bedrock and OpenSearch.\nExperience in consulting delivery, solutions engineering, internal product delivery, or roles involving direct collaboration with users and end-to-end implementation.\nExperience with visual workflow builders such as n8n or Flowise, including custom nodes, integrations, credential handling, and operational support.\nExperience with LLM evaluation, tracing, observability, red-teaming, or quality assurance tools and methods.\nExperience delivering applications subject to stringent data privacy, cybersecurity, accessibility, or government requirements, including IM8 policies.\nSkills\nData Ingestion, Generative AI Application Development and Deployment, AI Agents, LangGraph, Cost Management, User Stories, Quality Testing, Application Interfaces, Transformation, AI Evaluation, LangChain, Solution Design, Authentication, Back-End Databases, FastAPI, Operational Workflow","description_format":"text","description_chars":3916,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Mobile App Development Services","Web Development Services","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-09-25T17:56:20Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.864,"p_room":1,"age_days":8,"expected_fill_days":30,"reasons":["seen:8","velocity","win:early"],"computed_at":"2026-09-30T05:45:00Z"},"pay":{"stated_usd_annual":78924,"is_top_pay":false},"html_url":"https://alion.io/job/vinova-full-stack-engineer","json_url":"https://alion.io/job/vinova-full-stack-engineer.json","meta":{"generated_at":"2026-10-01T04:48:40Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":4317,"day_limit":5000,"remaining_today":683,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}