{"id":2241295,"url":"https://alion.io/job/symphony-principal-aiml-engineer","title":"Principal AI/ML Engineer","company":{"id":1804571,"name":"Symphony","domain":"symphony.is","url":"https://alion.io/company/symphony-is","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":75,"open_postings":7,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-12T06:55:09Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"lead","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bosnia and Herzegovina","North Macedonia","Serbia","Colombia"],"countries":["BA","MK","RS"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":61000,"max_usd":148000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":1041},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon SageMaker","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Diffusion Models","optional":false},{"name":"Docker","optional":false},{"name":"Fine-tuning","optional":false},{"name":"GCP","optional":false},{"name":"Kubernetes","optional":false},{"name":"Llama","optional":false},{"name":"LoRA","optional":false},{"name":"Multimodal AI","optional":false},{"name":"NLP","optional":false},{"name":"PEFT","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"QLoRA","optional":false},{"name":"TensorFlow","optional":false},{"name":"Transformers","optional":false},{"name":"Vertex AI","optional":false}],"status":"live","first_seen_at":"2025-12-05T10:55:34Z","employer_posted_date":"2025-12-05","last_verified_at":"2026-10-13T01:38:24Z","board_verified":true,"closed_at":null,"days_open":311,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":310},"description":"Symphony is a global design and development software company headquartered in San Francisco with 700+ technologists located across engineering offices in Southeast Europe and Latin America, along with business development offices in the US and Western Europe, and a Remote hub engaging employees from Latin America to Africa and Asia. In the last 19 years, we have launched over 300 products for the world’s leading startups, enterprises, Private Equity companies, and Fortune 500 companies.\nOur team has a proven track record in helping clients increase revenue, reduce time-to-market, improve end-user experiences, and achieve scalability. We have domain expertise spanning financial services, banking, retail, technology, healthcare, as well as the VC and PE ecosystem, among others.\nWe are on the lookout for a Principal AI/ML Engineer!\nAs a Principal AI/ML Engineer at Symphony, you’ll lead AI initiatives for global enterprise clients-shaping solutions, building PoCs, and architecting production-ready ML systems across domains from creative audio/video to complex business workflows. This is a hands-on technical leadership role where you define strategy, design end-to-end architectures, build core components, and set the technical standards for each engagement.\nWhat would be your responsibilities if you join us?\nTranslate business challenges into AI/ML solutions; lead discovery workshops.\nBuild and present PoCs to validate feasibility and value.\nContribute technical input to proposals, scoping, and estimations.\nDevelop models across NLP, CV, audio, and generative AI.\nLead fine-tuning and PEFT methods (LoRA, QLoRA, instruction tuning).\nAssess architectural trade-offs: fine-tuning vs. prompting vs. off-the-shelf.\nArchitect scalable deployments (APIs, batch, real-time).\nImplement CI/CD for ML: automated training, evaluation, versioning, deployment.\nDefine monitoring, drift detection, and optimization standards.\nCollaborate with data engineers on pipelines and feature engineering.\nStay current with foundation models and multimodal innovations.\nSet coding standards and lead design/architecture reviews.\nMentor engineers and guide research-to-production workflows.\nCommunicate technical decisions to both engineering and executive audiences.\nThere are some requirements that will make you stand out:\nBachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.\nMinimum 10+ years in software engineering or ML, with 5+ years focused on production ML systems\nStrong background in consulting, professional services, or client-facing technical leadership.\nTrack record of delivering ML solutions across multiple domains or industries.\nExpert Python; strong software engineering fundamentals.\nDeep experience with PyTorch or TensorFlow and modern architectures (Transformers, Diffusion models).\nHands-on with LLMs: fine-tuning open-source models (Llama, Mistral), parameter-efficient methods, and evaluation strategies.\nModel serving, containerisation (Docker/Kubernetes), and CI/CD pipelines.\nProficiency with AWS SageMaker, GCP Vertex AI, or Azure ML.\nYou will easily fit into Symphony culture if you:\nAre proactive and enthusiastic about your own continuous learning and improvement\nHave the ability to analyze and understand the business context and logic behind your job responsibilities\nEnjoy working in a pleasant and cooperative atmosphere\nExcited about working in international teams and using well-written and spoken English daily","description_format":"text","description_chars":3515,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":["Continuous learning","Equity"],"hiring_locations":[{"name":"Bosnia and Herzegovina","iso":"BA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-11T01:06:41Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.274,"p_room":0.28,"age_days":310,"expected_fill_days":32,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/symphony-principal-aiml-engineer","json_url":"https://alion.io/job/symphony-principal-aiml-engineer.json","meta":{"generated_at":"2026-10-13T03:35:18Z","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":5638,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"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":1804571},"rest":"https://alion.io/mcp/rest/get_company?id=1804571"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsymphony-principal-aiml-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%2Fsymphony-principal-aiml-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%2Fsymphony-principal-aiml-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/symphony-principal-aiml-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsymphony-principal-aiml-engineer"}]}