Senior AI Engineer with semantic web tech
EPAM Systems, Inc.
We are seeking a Senior AI Engineer with deep expertise in semantic web technologies to act as the strategic bridge between business stakeholders (Data Governance, Enterprise Architecture, AI/Analytics teams) and technical implementation teams. In this role, you will design, build, and operationalize enterprise semantic and data foundations, translating complex business terminology, metadata requirements, and domain concepts into structured ontologies, knowledge graphs, and scalable data pipelines that power Analytics, AI, Agentic AI, Knowledge Management, and digital solutions. Responsibilities Lead workshops and discovery sessions with business and technical stakeholders to elicit, define, and document business entities, relationships, attributes, hierarchies, and competency questions Develop and maintain enterprise ontologies, taxonomies, controlled vocabularies, and semantic models Map source systems and business concepts into canonical semantic representations Design, develop, and maintain scalable ELT/ETL frameworks, graph-loading processes, and semantic transformations supporting structured, semi-structured, and unstructured data Implement and optimize graph databases, semantic layers, and metadata repositories to directly support RAG (Retrieval-Augmented Generation), Knowledge Graph, and Agentic AI solutions Establish ontology governance frameworks and manage the business glossary and semantic versioning Automate data quality validation, monitoring, lineage, and observability processes Partner with Data Architects, Solution Architects, Data Stewards, and AI Engineers to ensure semantic consistency, discoverability, and high data quality across all enterprise data products Requirements Bachelor's or Master's degree in Computer Science, Information Systems, Data Science, Engineering, or a related field 5+ years of combined professional experience in Data Engineering, Data Architecture, Knowledge Engineering, or Semantic Technologies Expertise in semantic web technologies (RDF, OWL, SPARQL), along with SKOS and SHACL, ontology development, taxonomy creation, and knowledge graph architecture Proficiency in building enterprise-scale ELT/ETL pipelines and data integration frameworks Familiarity with cloud data platforms (Databricks, Snowflake, Azure, or AWS) Advanced coding skills in Python and SQL, alongside graph querying and reasoning capabilities Understanding of modern AI patterns, including RAG architectures, vector databases, and LLM integrations, as well as agentic AI systems Knowledge of metadata management, data quality, and lineage, along with governance principles and semantic versioning Exceptional verbal and written communication skills, with the ability to articulate complex semantic and data concepts clearly to diverse technical and non-technical stakeholders English proficiency at an Upper-Intermediate level (B2) or higher Nice to have Background in semantic tech (RDF, OWL, SPARQL), SKOS, SHACL, and Knowledge Graphs Familiarity with AWS, Neo4j, and Amazon Neptune Skills in vector databases, semantic layer platforms, and RAG integrations
$120.1k - $214.5k
...UnitedHealth GroupOptum Tech is a global leader... ...data analytics and AI to cybersecurity,... .... Our AI/ML engineering team develops production... ...responsible AI solutions with appropriate... ...engineering experience with web services, RESTful... ...databases, and semantic search patterns 1+...SeniorWebMinimum wageFull timeWork experience placementWork at officeLocal areaRemote work3 days per week$123k - $215.25k
...benefitsJob Function: Engineering & ArchitectureSchedule:... ...ExpressDescriptionJoining Amex Tech means discovering and... ...build a unique career with the Powerful Backing of... ...a highly skilled Senior AI Engineer to design, develop... ...4 network traffic, Web Application Firewall (WAF...SeniorWebVisa sponsorship- ...About the job Senior AI Engineer Senior AI Engineer Location:... ...Company Overview Glint Tech Solutions is a women-owned global... ...top technical talent with leading enterprise clients across... ...LlamaIndex, Amazon Bedrock ~ Web development proficiency in Next...SeniorWebRemote work
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$120.1k - $214.5k
...UnitedHealth GroupOptum Tech is a global leader in... ...advanced data analytics and AI to cybersecurity, we... ...AI/ML scientists and engineers with deep expertise in AI/ML... ...development platform.As a Senior AI/ML Software Engineer... ...(or similar Python web frameworks) in a production...SeniorWebMinimum wageFull timeWork experience placementWork at officeLocal areaRemote workFlexible hours$174k - $252k
...or lead design reviews with peers and stakeholders... ...recommendation.Google's software engineers develop the next-... ...and extend well beyond web search. We're looking... ...technology forward. Semantic understanding is the ability... ...is at the forefront of AI innovation, applying...SeniorWeb- ...Cosuno's platform. Generative AI: Build and improve our LLM-... ...API, and the integration into the web app. Collaborate across teams: Work with Product, Engineering, and Data to translate business... ...We are Cosuno – a fast-growing tech startup that is making the construction...SeniorWebPermanent employmentContract workWork at officeRemote workFlexible hours
- ...Title: Senior Agentic AI Engineer Location: NY or Alpharetta, GA with 3 days work from client office. Duration: 12+ months... ...designing and developing complex web applications, using the modern... ...frameworks like langchain, Semantic Kernel, AutoGen • Prompt engineering...SeniorWebWork at office
- ...Digital Workplace platform that connects people with technology—enabling, improving and... ...Our software solutions harness the power of AI and shape the future of digitalization.We believe... ...and evolve TeamViewer’s web client, AI-powered user experiences, and frontend...SeniorWebTemporary workCasual workWorldwide
- ...a skilled, innovation-driven Senior AI Engineer to join our team and spearhead... ...ideal for you. You will work with a dynamic group of... ...proficiency in Python (especially web frameworks like FastAPI) and... ...solid grasp of NLP concepts (semantic similarity, tokenization, text...SeniorWeb
- ...platform that connects people with technology—enabling, improving... ...solutions harness the power of AI and shape the future of... ...solutions that can be adopted across engineering teams.Secure the AI... ...and tooling.Strong knowledge of web applications, distributed systems...SeniorWebTemporary workCasual workWorldwide
$113.84k - $170.76k
...Global FinanceAt Citi, our Tech team doesn’t just... ...From deploying advanced AI to helping shape global... ...Machine Learning Systems Engineer with extensive ML Ops... ...systems.Role OverviewIn this senior tech lead role, you will... ...Technologies:Web Frameworks: FastAPI, FlaskWeb...SeniorWebFull time- ...platform that connects people with technology—enabling, improving... ...solutions harness the power of AI and shape the future of... ...collaborate with product and engineering teams to deliver scalable solutions... ...focused development.Experience with web technologies such as React and...SeniorWebTemporary workCasual workRemote workWorldwide
$123k - $215.25k
...benefitsJob Function: Engineering &... ...ExpressDescriptionJoining Amex Tech means discovering and... ...build a unique career with the Powerful... ...American Express, AI is reshaping the future... ...engineering (Mobile and Web), marketing and... ...company.The RoleAs a Senior AI Engineer II -...SeniorWebWorldwideVisa sponsorship$131k - $218.3k
...highly skilled and experienced Senior AI Full Stack Software Engineer to join our innovative... ...prototyping and iteration with product representatives to... ...tools like Pydantic, Semantic Kernel, LangChain, LlamaIndex... ...Python, Node.js, and modern web frameworks. Preferred...SeniorWebFull time$99.3k - $198.7k
...technologies spans the spectrum of healthcare, with leading businesses and products in... ..., and scientists.THE OPPORTUNITYThis Senior AI Engineer position can work out remotely within the... ...Engineer to work on a Go-based medical device web application and a modern Software as a...SeniorWebRemote work$117k - $234k
...business needs, this team works with Walmart International,... ...prompts and send them to the Gen AI model.• Integrate a safety... ...interfacing with Web Services platforms• Strong... ...what we do at Walmart Global Tech. Were a team of software engineers, data scientists, cybersecurity...SeniorWebFull timeTemporary workPart timeWork at officeFlexible hours$113k - $163k
As a Senior AI Engineer, you will be responsible for Full-Stack Software Development... .... The role partners closely with engineers, product owner,... ...-augmented generation (RAG), semantic search, model evaluation,... ...modern frontend and full-stack web applications using React JS.Experience...SeniorWebFull timeTemporary workLocal areaFlexible hours- ...platform that connects people with technology—enabling, improving... ...solutions harness the power of AI and shape the future of... ...impact?Every user who opens our web application lands in the Web Shell... ...work and deep frontend platform engineering, this role sits exactly there....SeniorWebTemporary workCasual workWorldwide
$142.32k - $213.48k
...CitiPosition SummaryWe are seeking a Senior Full-Stack hands-on Engineer to be part of the Banking... ...design and deliver enterprise-grade web applications, leveraging AI development agents (e.g., Claude... ...of strong hands-on experience with Java and Spring Boot for building...SeniorWebFull time$144.25k - $256.25k
...benefitsJob Function: Engineering &... ...ExpressDescriptionJoining Amex Tech means... ...a unique career with the Powerful Backing... ...engineering (Mobile and Web), marketing and... ...Express, AI is reshaping the... ...you.The Role As a Senior Staff AI... ...LangChain, LlamaIndex, Semantic Kernel, or CrewAI...WebVisa sponsorship$141 - $180 per hour
...Discover your opportunity with Mitsubishi UFJ... ...President, Global Red Team & AI Security Operations leads... ...with defensive, engineering, and governance teams.Key... ...ReportingAssist in developing senior and junior red team... ...exploitation techniques, and web/API workflows....SeniorWebFull timeWork at officeLocal areaRemote work1 day per week$144.25k - $256.25k
...benefitsJob Function: Engineering &... ...ExpressDescriptionJoining Amex Tech means... ...a unique career with the Powerful Backing... ...American Express, AI is reshaping the... ...(Mobile and Web), marketing and... ...principles.Mentor senior engineers and raise... ..., LlamaIndex, Semantic Kernel, or CrewAI...WebVisa sponsorship- Job TitleTAMIDS Senior / Lead AI EngineerAgencyTexas A&M UniversityDepartmentTexas... ...of Data Science from engineering, technology, science and the... ...social challenges. In partnership with over 200 research affiliates... ...applications that include web dashboards or portals, backend...SeniorWebFull timeContract workWork at officeFlexible hours
$183.6k - $297k
...solving real-world problems with cutting-edge technology... ...and Inclusion. We weave AI into the fabric of... ...As a Principal Software Engineer, you will own the technical... ...servicesExperience building semantic layers, KV caching, or... ...knowledge of web servers/proxies such as...SeniorWebFull timeWork at office- ...Opportunity for advancement Senior AI / Python Solutions Engineer Location: Dallas, TX (... ...RESTful APIs and SOAP web services. * Integrate enterprise... ...caching. * Collaborate with Data Scientists, Product... ...with vector databases and semantic search. * Strong...SeniorWebWork from homeFlexible hours
$80.31 - $85.31 per hour
...our core technology infrastructure. As a Senior AI Developer, this role will be a leader in... ...microservices,MongoDB,PostgreSQL,prompt engineering,SQL,production deployment,low-level... ...Life Cycle,SDLC,unit testing,AI assistance,Web Services,Communication,Excellent communication...SeniorWebHourly payContract workTemporary workWork experience placement- ...Expertise in LangChain, LlamaIndex, Semantic Kernel, AutoGen, or... ...and orchestrate autonomous AI agents with multi-step reasoning, tool usage... ...+ unstructured). • Context Engineering: Develop prompt strategies,... ...(Streamlit/Dash) or modern web frameworks to enable business...SeniorWeb
$120.1k - $214.5k
...healthier lives. The work you do with our team will directly improve... ...collaborates closely with engineering, platform, and business partners... ...the responsible use of AI, including developing digital... ...models4+ years of experience with Web and API development4+ years of...SeniorWebMinimum wageFull timeWork experience placementH1bWork at officeLocal areaRemote workVisa sponsorshipWork visa
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