CrawlJobs Logo

Senior Full Stack Gen AI Engineer

apexsystems.com Logo

Apex Systems

Location Icon

Location:
United States , McLean

Category Icon
Category:
IT - Software Development

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

80.00 - 102.51 USD / Hour
Save Job
Save Icon
Apply Position

Job Description:

We are hiring a Senior Full Stack Gen AI Engineer! Supporting: Large Financial Services Client. Location: McLean, VA (Onsite). Assignment Type: Contract-to-Hire. Duration: 6 Months. Role Overview: This is a hands-on, high-impact engineering role for a senior Full Stack Engineer who thrives at the intersection of modern UI, scalable microservices, and applied Gen AI. You'll be designing and building AI Agents, Agentic Workflows, and Generative AI applications that solve complex, real-world business problems at enterprise scale. The ideal candidate is someone who enjoys owning solutions end to end—from Angular front-end experiences to Python-based orchestration services deployed on AWS Kubernetes, while collaborating closely with Gen AI scientists, UX designers, product managers, and data engineers.

Job Responsibility:

  • Architect, design, and implement scalable Full Stack Gen AI applications, including AI Agents and Agentic Workflows
  • Build and maintain performant, user-friendly Angular front ends
  • Design and develop Python microservices that orchestrate AI workflows and model integrations
  • Deploy and operate services on AWS (EKS/Kubernetes) using cloud-native practices
  • Integrate ML models such as LLMs, RAG pipelines, and multimodal AI into production systems
  • Develop and maintain RESTful APIs to support seamless application communication
  • Apply modern design patterns, secure coding standards, and best practices for microservices and UI development
  • Partner with cross-functional teams (Gen AI scientists, UX, data, product) to deliver end-to-end Gen AI experiences
  • Implement evaluation frameworks, validation strategies, bias mitigation, safety controls, and guardrails for production-ready AI deployments

Requirements:

  • Advanced expertise with Angular (UI development)
  • Strong Python development experience in microservices architectures
  • Hands-on experience with AWS and Kubernetes (EKS)
  • 10+ years of full stack engineering experience
  • 3+ years of applied AI/ML or Gen AI experience
  • Proven experience designing and deploying enterprise-grade applications
  • Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field

Nice to have:

  • Experience building AI-powered or Gen AI-driven applications
  • Familiarity with CI/CD pipelines and DevOps practices
  • Exposure to enterprise AI governance, compliance, and ethical AI frameworks
  • Open-source contributions or published technical work
  • Active GitHub profile demonstrating hands-on engineering skills
What we offer:
  • Medical insurance
  • Dental insurance
  • Vision insurance
  • Life insurance
  • Disability insurance
  • ESPP (employee stock purchase program)
  • 401K program with company match
  • HSA (Health Savings Account)
  • SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions
  • Corporate discount savings program
  • On-demand training program
  • Access to certification prep
  • Library of technical and leadership courses/books/seminars
  • Certification discounts
  • CompTIA and IIBA associations
  • Dedicated customer service team
  • Certified Career Coach

Additional Information:

Job Posted:
April 23, 2026

Employment Type:
Fulltime
Work Type:
On-site work
Icon
Apex Systems - All Job Offers
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Senior Full Stack Gen AI Engineer

Senior Machine Learning Engineering Manager, Gen AI

We're seeking a Senior Machine Learning Manager (M60) to lead a cross-functional...
Location
Location
United States
Salary
Salary:
193500.00 - 303150.00 USD / Year
https://www.atlassian.com Logo
Atlassian
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 8+ years in ML, search, or backend engineering roles, with 3+ years leading teams
  • Strong track record of shipping ML-powered or LLM-integrated user-facing products
  • Experience with RAG systems (vector search, hybrid retrieval, LLM orchestration)
  • Deep experience in either modeling (e.g., LLMs, search, NLP) or engineering (e.g., backend infra, full-stack), with the ability to lead end-to-end
  • Deep understanding of LLM ecosystems (OpenAI, Claude, Mistral, OSS), orchestration frameworks (LangChain, LlamaIndex), and vector databases (Weaviate, Pinecone, FAISS, etc.)
  • Strong product intuition and ability to translate complex tech into valuable user features
  • Familiarity with GenAI evaluation methods: hallucination detection, groundedness scoring, and human-in-the-loop feedback loops
  • Master’s or PhD in Computer Science, Machine Learning, or related field preferred—or equivalent practical experience
Job Responsibility
Job Responsibility
  • Lead the vision, design, and execution of LLM-powered AI products, leveraging advance AI modeling (e.g. SLM post-training/fine-tuning), RAG architectures and hybrid ranking system
  • Define system architecture across retrievers, rankers, orchestration layers, prompt templates, and feedback mechanisms
  • Work closely with product and design teams to ensure delightful, fast, and grounded user experiences
  • Build and manage a cross-disciplinary team including ML engineers, backend/frontend engineers, and applied scientists
  • Foster a culture of E2E ownership — empowering the team to move from prototype to production quickly and iteratively
  • Mentor individuals to grow in both technical depth and product acumen
  • Shape the technical roadmap and long-term strategy for GenAI search across Atlassian’s product suite
  • Partner with platform and infra teams to scale inference, evaluate performance, and integrate usage signals for continuous improvement
  • Champion data quality, grounding, and responsible AI practices in all deployed features
What we offer
What we offer
  • health and wellbeing resources
  • paid volunteer days
  • Fulltime
Read More
Arrow Right

Senior Machine Learning Engineer

The Risk Onboarding team is working on efficiently reviewing customers’ applicat...
Location
Location
United States; Canada , San Francisco; New York; Portland; Remote
Salary
Salary:
200700.00 - 250900.00 USD / Year
mercury.com Logo
Mercury
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ years of experience in roles like machine learning engineering, data engineering, backend software engineering, and/or devops
  • Expertise with: A full modern data stack: Snowflake, dbt, Fivetran, Airbyte, Dagster, Airflow
  • SQL, dbt, Python
  • OLAP / OLTP data modelling and architecture
  • Key-value stores: Redis, dynamoDB, or equivalent
  • Streaming / real-time data pipelines: Kinesis, Kafka, Redpanda
  • API frameworks: FastAPI, Flask, etc.
  • Production ML Service experience
  • Working across full-stack development environment, with experience transferable to Haskell, React, and TypeScript
Job Responsibility
Job Responsibility
  • Partner with data science & engineering teams to design and deploy ML & Gen AI microservices, primarily focusing on automating reviews
  • Work with a full-stack engineering team to embed these services into the overall review experience, including human in the loop, escalations, and feeding human decisions back into the service
  • Implement testing, observability, alerting, and disaster recovery for all services
  • Implement tracing, performance, and regression testing
  • Feel a strong sense of product ownership and actively seek responsibility – we often self-organize on small/medium projects, and we want someone who’s excited to help shape and build Mercury’s future
What we offer
What we offer
  • equity
  • benefits
  • Fulltime
Read More
Arrow Right

Senior Full-Stack Engineer (Data-Aware)

Sunscrapers is a technology consultancy that empowers finance and healthcare lea...
Location
Location
Poland , Warsaw
Salary
Salary:
Not provided
sunscrapers.com Logo
Sunscrapers sp. z o.o.
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • At least 5+ years of professional experience as a software engineer (backend/full-stack)
  • Undergraduate or graduate degree in Computer Science, Engineering, Mathematics, or similar
  • Strong proficiency in Next.js / React for frontend development
  • Solid backend development skills in Python (FastAPI, Flask, or Django)
  • Experience working with data in any capacity - SQL databases, data processing, analytics, working alongside data teams, or building data-driven applications
  • Proven experience building secure, scalable web applications
  • Experience with AWS stack and services, proficiency in using Docker
  • Experience with infrastructure-as-code tools, like Terraform
  • Excellent command in spoken and written English, at least C1
  • Creative problem-solving skills and excellent technical documentation
Job Responsibility
Job Responsibility
  • Owning and evolving Next.js/React frontend with authenticated flows and secure session handling
  • Designing and implementing secure, scalable access patterns (OAuth2/OIDC, authorization boundaries)
  • Building and maintaining FastAPI backend services for agent-driven workflows and data integrations
  • Developing PoCs using latest technologies, experimenting with third party integrations
  • Delivering production grade applications once PoCs are validated
  • Creating solutions that enable data scientists and business analysts to be self-sufficient as much as possible
  • Finding new ways how to leverage Gen AI applications and underlying vector and graph data storages
  • Working with data warehouses, databases, and building data flows for fetching and aggregation
  • Contributing to infrastructure-as-code and AWS-based systems
  • Documenting design decisions before implementation
What we offer
What we offer
  • Working alongside a talented team of software engineers who are changing the image of Poland abroad
  • Culture of teamwork, professional development and knowledge sharing
  • Flexible working hours and remote work possibility
  • Comfortable office in central Warsaw, equipped with all the necessary tools for conquering the universe (Macbook Pro/Dell, external screen, ergonomic chairs)
  • Fulltime
Read More
Arrow Right

Senior Data Engineer (LLM)

Sunscrapers is a technology consultancy that empowers finance and healthcare lea...
Location
Location
Poland , Warsaw
Salary
Salary:
Not provided
sunscrapers.com Logo
Sunscrapers sp. z o.o.
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • At least 5+ years of professional experience in data-related or full-stack engineering role
  • Undergraduate or graduate degree in Computer Science, Engineering, Mathematics, or similar
  • Strong proficiency in Next.js / React for frontend development
  • Expertise in Python and SQL languages
  • Experience with data warehouses (Snowflake) and different database technologies (RDBMS, vector, graphs)
  • Proven experience building secure, scalable web applications
  • Expertise in AWS stack and services, proficiency in using Docker
  • Experience with infrastructure-as-code tools, like Terraform
  • Excellent command in spoken and written English, at least C1
  • Creative problem-solving skills and excellent technical documentation
Job Responsibility
Job Responsibility
  • Developing PoCs using latest technologies, experimenting with third party integrations
  • Owning and evolving Next.js/React frontend with authenticated flows and secure session handling
  • Delivering production grade applications once PoCs are validated
  • Creating solutions that enable data scientists and business analysts to be self-sufficient as much as possible
  • Designing and implementing secure, scalable access patterns (OAuth2/OIDC, authorization boundaries)
  • Finding new ways how to leverage Gen AI applications and underlying vector and graph data storages
  • Contributing across the stack including FastAPI backend services and agent-driven workflows
  • Contributing data technology stacks including data warehouses and ETL pipelines
  • Building data flows for fetching, aggregation and data modeling using batch and streaming pipelines
  • Documenting design decisions before implementation
What we offer
What we offer
  • Working alongside a talented team of software engineers who are changing the image of Poland abroad
  • Culture of teamwork, professional development and knowledge sharing
  • Flexible working hours and remote work possibility
  • Comfortable office in central Warsaw, equipped with all the necessary tools for conquering the universe (Macbook Pro/Dell, external screen, ergonomic chairs)
Read More
Arrow Right

Senior Solution Engineer

Are you insatiably curious, deeply passionate about the realm of AI & applicatio...
Location
Location
South Korea , Seoul
Salary
Salary:
Not provided
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 15+ years technical pre-sales or technical consulting experience OR Bachelor's Degree in Computer Science, Information Technology, or related field AND 15+ years technical pre-sales or technical consulting experience OR Master's Degree in Computer Science, Information Technology, or related field AND 15+ year(s) technical pre-sales or technical consulting experience OR equivalent experience
  • Expert on full stack App architecture design / modernization and cloud native dev (e.g., APIs, containerization, microservices, event-driven, Python, Java, .NET)
  • Expert for AI & ML models (e.g., Agentic AI framework, AI Foundry, Semantic Kernel, Foundry SDK, Responsible AI, fine-tuning/inferencing, etc.)
  • Proven ability to lead technical engagements (e.g., hackathons, PoCs, MVPs) that drive production-scale outcomes
Job Responsibility
Job Responsibility
  • Drive technical sales with decision makers using demos and PoCs to influence solution design and enable production deployments
  • Lead hands-on engagements—hackathons, code-with sessions, and architecture workshops—to accelerate adoption of Microsoft’s developer tools and cloud platforms
  • Build trusted relationships with developers and platform leads, co-designing secure, scalable architectures and solutions
  • Resolve technical blockers and objections, collaborating with engineering to share insights and improve products
  • Maintain deep expertise in AI Foundry & App architecture (Agentic AI framework, Semantic Kernel, Foundry SDK, Responsible AI) and App architecture/cloud native dev (APIs, containerization, microservices, event-driven, Python, Java or .NET)
  • Maintain and grow expertise in AI Management & Security (Gen AI Ops, Sentinel, orchestrator, monitoring)
  • Represent Microsoft through thought leadership in developer communities and customer forums
  • Fulltime
Read More
Arrow Right

Senior Java Fullstack GenAI Developer

Senior Java Fullstack GenAI Developer - Vice President is a senior level positio...
Location
Location
India , Pune
Salary
Salary:
Not provided
https://www.citi.com/ Logo
Citi
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 10+ years of progressive experience in software engineering, architecture, Application Development as Java Fullstack engineer
  • Minimum of 3+ year strong working experience in ML/GenAI, and data analytics
  • Advanced knowledge of probability, statistics and linear algebra
  • Expertise in statistical modelling, hypothesis testing and experimental design
  • Hands on experience with LLMs (Google Gemini, Open AI, Llama etc.), LangChain, LlamaIndex, Hugging Face Transformers, Knowledge graph, and Vector Databases
  • Advanced knowledge of RAG techniques is required, including expertise in hybrid search methods, multi-vector retrieval, Hypothetical Document Embeddings (HyDE), self-querying, query expansion, re-ranking, and relevance filtering etc
  • Must Have hands-on experience with GenAI application with Agentic AI, RAG approach, Vector databases, LLM’s
  • Must Have Strong Proficiency in Python, FastAPI/Flask
  • Must have Advanced NLP skills, including Named Entity Recognition (NER), Dependency Parsing, Text Classification, and Topic Modelling
  • Strong Proficiency in deep learning frameworks such as TensorFlow, PyTorch, scikit-learn, Scipy, Pandas and high-level APIs like Keras is essential
Job Responsibility
Job Responsibility
  • Partner with multiple management teams to ensure appropriate integration of functions to meet goals as well as identify and define necessary system enhancements to deploy new products and process improvements
  • Resolve variety of high impact problems/projects through in-depth evaluation of complex business processes, system processes, and industry standards
  • Provide expertise in area and advanced knowledge of applications programming and ensure application design adheres to the overall architecture blueprint
  • Utilize advanced knowledge of system flow and develop standards for coding, testing, debugging, and implementation
  • Develop comprehensive knowledge of how areas of business, such as architecture and infrastructure, integrate to accomplish business goals
  • Provide in-depth analysis with interpretive thinking to define issues and develop innovative solutions
  • Serve as advisor or coach to mid-level developers and analysts, allocating work as necessary
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency
  • Fulltime
Read More
Arrow Right

Senior Data Engineering Manager

The volume and velocity of data at Intercom are exploding, fueled by our growth ...
Location
Location
Ireland , Dublin
Salary
Salary:
Not provided
intercom.com Logo
Intercom
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ Years Experience: You have a proven, full-time career history in the data space, leading teams of 6+ Engineers.
  • Stakeholder Focus: You can communicate complex technical solutions to a business focused audience and vice versa. You are comfortable interacting with stakeholders across the entire breadth of the business.
  • Technical Depth: Your team will be responsible for the majority of execution, but you’re not afraid to get your hands dirty and write code when it’s needed. You lead from the front.
  • A Leader & Mentor: You naturally recognize opportunities to step back and mentor others, understanding when your guidance will multiply the team's output.
Job Responsibility
Job Responsibility
  • Next-Gen Platform Evolution: Partner with product and business teams and lead the architectural design and implementation of the next generation of our data stack, ensuring it can meet the demands of advanced analytics and AI applications.
  • Enablement Through Tooling: Partner closely with Analytics Engineers, Analysts, and Data Scientists to build the self-service tooling and infrastructure they need to move fast and deploy safely.
  • Data Quality Guardianship: Implement advanced monitoring systems to proactively detect, surface, and resolve data quality issues across our high-throughput environment (where dozens of changes can ship daily).
  • Driving Automation: Develop automation and tooling that streamlines the creation and discovery of high-quality analytics data, making the entire data lifecycle more efficient.
  • GTM Data Platform Strategy: Build the data acquisition strategy that will enable us to build the next generation of business focused internal software.
  • Conversational BI Strategy: Lead the charge to shift away from complex, technical reporting toward natural language interaction to make data truly democratized and accessible, users should be able to query information—getting both raw numbers and contextual narratives instantly—without needing a data science degree or waiting on analysts.
  • Platform & Warehousing Strategy: Lead the architectural- and cost review and revamp of our core data infrastructure and to ensure it can scale exponentially for future growth and advanced use cases.
What we offer
What we offer
  • Competitive salary and equity in a fast-growing start-up
  • We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen
  • Regular compensation reviews - we reward great work!
  • Pension scheme & match up to 4%
  • Peace of mind with life assurance, as well as comprehensive health and dental insurance for you and your dependents
  • Open vacation policy and flexible holidays so you can take time off when you need it
  • Paid maternity leave, as well as 6 weeks paternity leave for fathers, to let you spend valuable time with your loved ones
  • If you’re cycling, we’ve got you covered on the Cycle-to-Work Scheme. With secure bike storage too
  • MacBooks are our standard, but we also offer Windows for certain roles when needed.
  • Fulltime
Read More
Arrow Right

Senior Data Engineering Manager

The Data Engineering team is the critical engine powering Intercom's future. We ...
Location
Location
United Kingdom , London
Salary
Salary:
Not provided
intercom.com Logo
Intercom
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ Years Experience: You have a proven, full-time career history in the data space, leading teams of 6+ Engineers.
  • Stakeholder Focus: You can communicate complex technical solutions to a business focused audience and vice versa. You are comfortable interacting with stakeholders across the entire breadth of the business.
  • Technical Depth: Your team will be responsible for the majority of execution, but you’re not afraid to get your hands dirty and write code when it’s needed. You lead from the front.
  • A Leader & Mentor: You naturally recognize opportunities to step back and mentor others, understanding when your guidance will multiply the team's output.
Job Responsibility
Job Responsibility
  • Next-Gen Platform Evolution: Partner with product and business teams and lead the architectural design and implementation of the next generation of our data stack, ensuring it can meet the demands of advanced analytics and AI applications.
  • Enablement Through Tooling: Partner closely with Analytics Engineers, Analysts, and Data Scientists to build the self-service tooling and infrastructure they need to move fast and deploy safely.
  • Data Quality Guardianship: Implement advanced monitoring systems to proactively detect, surface, and resolve data quality issues across our high-throughput environment (where dozens of changes can ship daily).
  • Driving Automation: Develop automation and tooling that streamlines the creation and discovery of high-quality analytics data, making the entire data lifecycle more efficient.
  • GTM Data Platform Strategy: Build the data acquisition strategy that will enable us to build the next generation of business focused internal software.
  • Conversational BI Strategy: Lead the charge to shift away from complex, technical reporting toward natural language interaction to make data truly democratized and accessible, users should be able to query information—getting both raw numbers and contextual narratives instantly—without needing a data science degree or waiting on analysts.
  • Platform & Warehousing Strategy: Lead the architectural- and cost review and revamp of our core data infrastructure and to ensure it can scale exponentially for future growth and advanced use cases.
What we offer
What we offer
  • Competitive salary and equity in a fast-growing start-up
  • We serve lunch every weekday, plus a variety of snack foods and a fully stocked kitchen
  • Regular compensation reviews - we reward great work!
  • Pension scheme & match up to 4%
  • Peace of mind with life assurance, as well as comprehensive health and dental insurance for you and your dependents
  • Open vacation policy and flexible holidays so you can take time off when you need it
  • Paid maternity leave, as well as 6 weeks paternity leave for fathers, to let you spend valuable time with your loved ones
  • Cycle-to-Work Scheme. With secure bike storage
  • MacBooks are our standard, but we also offer Windows for certain roles when needed.
  • Fulltime
Read More
Arrow Right
Remote jobs Jobs by Category
Art and Entertainment Jobs Banking Jobs Call Center Jobs Construction Jobs Consulting Jobs Customer Service Jobs Education Jobs Energy Jobs Finance Jobs Gastronomy Jobs Health and Beauty Jobs Hospitality and Tourism Jobs Human Resources Jobs Insurance Jobs IT - Administration Jobs IT - Software Development Jobs Legal Jobs Logistics Jobs Manufacturing Jobs Marketing, Digital Marketing, SEO, SEM Jobs Media Jobs Nursing Jobs Office Administration Jobs Pharmacy Jobs Physical Work Jobs Public Relations Jobs Public Sector Jobs Purchasing Jobs Quality Control Jobs Real Estate Jobs Research and Development Jobs Sales Jobs
Job Positions Jobs by Country
United States Jobs United Kingdom Jobs India Jobs Canada Jobs Australia Jobs Germany Jobs Ireland Jobs Poland Jobs
Company
Blog Salaries Tools About Us FAQ Contact
Follow Us
Facebook
X (Twitter)
LinkedIn
Instagram
CrawlJobs Group
ITFlashcards AllDevBlogs
© 2026 CrawlJobs Ltd. All Rights Reserved
Terms & Conditions Privacy Policy