{"id":21705,"url":"https://alion.io/job/tryzens-global-senior-engineer-ai-systems","title":"Senior Engineer, AI Systems","company":{"id":5399,"name":"Tryzens","domain":"tryzens.com","url":"https://alion.io/company/tryzens-global","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":87,"open_postings":3,"ghost_share":0,"stale_share":0.333,"repost_share":0,"time_to_fill_p50_days":97,"computed_at":"2026-10-16T05:45:00Z"}},"role":"AI/ML","role_family":"AI/ML","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":["Sofia, Bulgaria"],"countries":["BG"],"hiring_countries":["BG"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":42000,"max_usd":107000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2102},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Azure","optional":false},{"name":"Function Calling","optional":false},{"name":"Hybrid Search","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"OpenAI","optional":false},{"name":"Python","optional":false},{"name":"Reranking","optional":false},{"name":"Tool Use","optional":false},{"name":"TypeScript","optional":false},{"name":"Agentforce","optional":true}],"status":"live","first_seen_at":"2026-07-27T00:00:00Z","employer_posted_date":"2026-07-27","last_verified_at":"2026-10-17T00:34:55Z","board_verified":true,"closed_at":null,"days_open":82,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":82},"description":"Tryzens Global is a digital commerce agency that helps the world's most ambitious retailers scale their businesses internationally. We are the only global support partner in digital commerce operating across every time zone, with deep experience solving complex retail integrations around the world.\nWe provide best of breed solutions and services to global businesses within retail, wine & spirits, beauty & cosmetics, automotive, financial services and other industries. We have built our delivery focused reputation upon technical innovation, in-depth business knowledge, and creative vision, all of which supports our objective of helping clients to gain true value from their technology stacks. We have a platform-neutral independent approach working with the world’s leading technology partners like Shopify, Agentforce(Salesforce), SAP & Adobe.\nWe are embedding artificial intelligence across every stage of our delivery lifecycle and are looking to grow our AI Practice in Sofia. We are looking for an experienced , smart and energetic person to join our team of talented professionals as a Senior AI Developer.\nThe AI Developer role is a hands-on engineering role within the Tryzens AI Practice and is focused on building AI-augmented delivery capabilities across our core technology platforms.\nResponsibilities\nDesign, build and operate LLM- and agent-based features in production - architecture through deployment, monitoring and iteration - with cost and latency treated as design constraints, not later optimisation\nIntegrate models with our systems and data: APIs, tool calling, multi-step orchestration, retrieval where the task requires grounding in specific data\nBuild the evaluation and observability that make behaviour changes visible before release rather than after: test sets, automated scoring, tracing, per-task cost\nDesign for non-deterministic failure - output validation, fallbacks, degradation paths, human checkpoints where an error cannot be absorbed\nWork with clients and product owners to turn ambiguous requirements into scoped, testable capabilities, including judging when an LLM is the wrong tool\nRequirements\nSenior-level software engineering in Python/Typescript, with production ownership: you have deployed, monitored and been accountable for systems in live use\nYou have shipped an LLM or agent system that reached production, was used by people outside your team, and was maintained by you afterwards\nYou have a working method for knowing whether a change to a prompt, model or pipeline improved the system\nYou have worked under data security or compliance constraints, including limits on what may be sent to third-party model providers, and you understand the failure modes specific to LLM systems - prompt injection, data leakage across tenants, unsafe tool invocation\nUseful, not required\nRetrieval at scale: hybrid search, reranking, permissioned or fast-changing document sets\nAgent frameworks, MCP\nBedrock / Vertex / Azure OpenAI\nAsynchronous and long-running systems: queues, idempotency, durable state\nClient-facing consulting\nNot required\nAn ML or research background. This is an engineering role: the work is building systems around models, not developing them. No specific commerce platform experience.\nBenefits\nCompetitive remuneration package\nFlexible working hours\nFully remote working policy\nFood and gift vouchers\nAdditional health insurance\nGreat work-life balance and 25 days annual vacation\n1 day Birthday vacation\nA positive and fun environment","description_format":"text","description_chars":3508,"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":["Flexible schedule","Health insurance"],"hiring_locations":[{"name":"Bulgaria","iso":"BG","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Commerce","Web Development Services","Custom Software Development","Enterprise Apps Implementation Partners"],"lifecycle":[{"event":"open","at":"2026-07-27T00:00:00Z"}],"visa":[],"liveness":{"score":46,"band":"ok","label":"Likely open","p_open":1,"p_active":0.765,"p_room":0.6,"age_days":81,"expected_fill_days":97,"reasons":["conf:2","velocity","win:late","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/tryzens-global-senior-engineer-ai-systems","json_url":"https://alion.io/job/tryzens-global-senior-engineer-ai-systems.json","meta":{"generated_at":"2026-10-17T02:21:47Z","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":3321,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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":5399},"rest":"https://alion.io/mcp/rest/get_company?id=5399"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftryzens-global-senior-engineer-ai-systems"},{"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%2Ftryzens-global-senior-engineer-ai-systems"},{"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%2Ftryzens-global-senior-engineer-ai-systems"},{"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/tryzens-global-senior-engineer-ai-systems\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftryzens-global-senior-engineer-ai-systems"}]}