{"id":3325004,"url":"https://alion.io/job/persistent-systems-senior-aillm-inference-engineer","title":"Senior AI/LLM Inference Engineer","company":{"id":59479,"name":"Persistent Systems","domain":"persistent.com","url":"https://alion.io/company/persistent-systems","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Zwayam","truth_index":{"grade":"A","score":92,"open_postings":107,"ghost_share":0,"stale_share":0.299,"repost_share":0.037,"time_to_fill_p50_days":46,"computed_at":"2026-10-28T05:59:10Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":24000,"max_usd":49000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":41},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"CMake","optional":false},{"name":"CUDA","optional":false},{"name":"Embeddings","optional":false},{"name":"Fine-tuning","optional":false},{"name":"Gemma","optional":false},{"name":"Git","optional":false},{"name":"Hugging Face","optional":false},{"name":"KV Cache","optional":false},{"name":"Linux","optional":false},{"name":"Llama","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Mistral","optional":false},{"name":"Multimodal AI","optional":false},{"name":"ONNX","optional":false},{"name":"OpenCL","optional":false},{"name":"Platform Engineering","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Quantization","optional":false},{"name":"Qwen","optional":false},{"name":"RAG","optional":false},{"name":"Tokenization","optional":false},{"name":"Transformers","optional":false}],"status":"live","first_seen_at":"2026-10-14T06:53:46Z","employer_posted_date":"2026-10-27","last_verified_at":"2026-10-28T13:40:44Z","board_verified":true,"closed_at":null,"days_open":14,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":14},"description":"About Persistent\nWe are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what's next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.\nOur disruptor's mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We reported $1,654.4M FY26 revenue with 17.4% Y-o-Y growth. We have delivered 24 sequential quarters of growth with $436.0M in Q4 FY26 revenue, up 3.2% Q-o-Q and 16.2% Y-o-Y growth. Our 27,500+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been recognized as the Fastest Growing IT Services Brand Globally in the 2026 Brand Finance IT Services 25 Report. We named a Leader in the Everest Group Private Equity (PE) Services PEAK Matrix Assessment 2026 and Software Product Engineering PEAK Matrix Assessment 2026.\nAbout Position:\nWe are seeking a highly skilled Senior AI/LLM Inference & GPU Optimization Engineer to design, optimize, evaluate, and deploy high-performance Large Language Model (LLM) and multimodal AI inference solutions across CPU, GPU, and edge environments. The ideal candidate will combine strong expertise in LLM architectures with systems programming, SIMD optimization, GPU acceleration, quantization techniques, and inference performance engineering. You will play a key role in building scalable AI systems that deliver low-latency, high-throughput inference while maintaining model accuracy and reliability.\nRole: Senior AI/LLM Inference Engineer\nLocation: Bengaluru\nExperience: 5 to 10 Years\nJob Type: Full-Time Employment\nWhat You'll Do:\nDesign and optimize high-performance inference pipelines for Large Language Models and multimodal foundation models across CPU, GPU, and edge platforms.\nBuild and maintain evaluation frameworks for assessing reasoning, factuality, instruction following, long-context performance, robustness, tool usage, and multimodal capabilities.\nCompare and benchmark foundation models using reproducible datasets, quantitative metrics, qualitative analysis, and failure-mode categorization.\nDesign experiments for prompt engineering, Retrieval-Augmented Generation (RAG), fine-tuning strategies, inference-time scaling, and model behavior analysis.\nDevelop automated evaluation pipelines, including LLM-as-a-Judge methodologies, human validation workflows, and bias assessment mechanisms.\nOptimize model latency, throughput, memory utilization, and operational efficiency across various deployment environments.\nImplement model quantization strategies, mixed-precision inference, weight compression, and memory optimization techniques.\nDevelop and optimize custom operators, inference kernels, and runtime components for AI workloads.\nCreate vectorized CPU implementations leveraging ARM NEON, AVX2, AVX-512, and SSE instruction sets.\nCollaborate with AI researchers, platform engineers, and product teams to productionize cutting-edge LLM capabilities.\nAnalyze inference bottlenecks using advanced profiling and performance engineering methodologies.\nDeploy and manage production-grade AI inference systems with reliability, scalability, and observability best practices.\nStay current with advancements in AI acceleration, LLM architectures, inference frameworks, and hardware optimization technologies.\nExpertise You'll Bring:\n5-10 years of experience in AI Systems Engineering, Machine Learning Infrastructure, High-Performance Computing, Systems Programming, or AI Platform Engineering.\nStrong programming expertise in Python and modern C++ with experience in debugging, profiling, memory management, and multithreaded development.\nDeep understanding of Transformer architectures, attention mechanisms, tokenization, embeddings, positional encoding, KV cache optimization, and text generation techniques.\nHands-on experience with PyTorch, Hugging Face Transformers, and modern LLM development ecosystems.\nPractical experience working with LLMs such as Llama, Qwen, Mistral, Gemma, GPT-family models, or equivalent foundation models.\nStrong expertise in LLM evaluation methodologies, benchmarking frameworks, and model performance measurement.\nExperience implementing Retrieval-Augmented Generation (RAG), prompt engineering, and model fine-tuning solutions.\nStrong understanding of quantization techniques, mixed precision inference, calibration methodologies, weight packing, and numerical accuracy validation.\nHands-on experience developing and optimizing SIMD-based kernels using ARM NEON, x86 AVX2, AVX-512, or SSE instruction sets.\nExperience with GPU acceleration technologies including CUDA, Metal, OpenCL, DirectML, or equivalent GPU compute frameworks.\nStrong understanding of GPU architectures, memory hierarchies, parallel computing concepts, and AI acceleration techniques.\nExperience with model deployment, inference runtimes, ONNX, model export workflows, and AI serving platforms.\nProficiency with Linux development environments, Git, CMake, Ninja, compilers, linkers, shared libraries, and ABI compatibility.\nExperience building scalable CI/CD pipelines and production-grade AI platforms.\nStrong analytical, problem-solving, and performance optimization skills.\nBenefits:\nCompetitive salary and benefits package\nCulture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications\nOpportunity to work with cutting-edge technologies\nEmployee engagement initiatives such as project parties, flexible work hours, and Long Service awards\nAnnual health check-ups\nInsurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents\nValues-Driven, People-Centric & Inclusive Work Environment:\nPersistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.\nWe support hybrid work and flexible hours to fit diverse lifestyles.\nOur office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.\nIf you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment\nLet's unleash your full potential at Persistent -persistent.com/careers\n\"Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.\"","description_format":"text","description_chars":7098,"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":["Equity","Flexible schedule","Growth opportunities","Hybrid work","Insurance coverage"],"hiring_locations":[{"name":"India","iso":"IN","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Health Care","Information Technology","IT Outsourcing & Dedicated Teams"],"lifecycle":[{"event":"open","at":"2026-10-27T09:33:19Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":13,"expected_fill_days":46,"reasons":["conf:1","velocity","win:early","comp:brand"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/persistent-systems-senior-aillm-inference-engineer","json_url":"https://alion.io/job/persistent-systems-senior-aillm-inference-engineer.json","meta":{"generated_at":"2026-10-28T17:20:31Z","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":23521,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-29T00:00:00Z"}},"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":59479},"rest":"https://alion.io/mcp/rest/get_company?id=59479"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpersistent-systems-senior-aillm-inference-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%2Fpersistent-systems-senior-aillm-inference-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%2Fpersistent-systems-senior-aillm-inference-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/persistent-systems-senior-aillm-inference-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpersistent-systems-senior-aillm-inference-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3325004}},{"tool":"search_jobs","arguments":{"company":"persistent.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3325004},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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