Senior Full-Stack Engineer – Mobile & AI

Overview

Position Title: Senior Mobile & AI Engineer (AWS, LLM, RAG)

Location: Capitol Heights Maryland

Position Status: Full Time

Pay Rate: $130K/Annum

We are seeking a Senior Mobile & AI Engineer with a strong foundation in mobile application development, cloud-native architecture, and Generative AI
. This role is ideal for a hands-on engineer who thrives at the intersection of UI/UX, AWS serverless technologies, and LLM-powered applications
.

You will design, build, and deploy scalable, high-performance applications leveraging Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) pipelines. This is an opportunity to work on cutting-edge AI-driven products while owning the full development lifecycle—from concept to production.

• Design and develop scalable mobile and web applications with a strong focus on performance and usability
• Architect and implement cloud-native solutions using AWS serverless technologies (Lambda, API Gateway, Dynamo
  
  DB, etc.)
• Build and optimize LLM-based applications, including RAG pipelines for intelligent data retrieval and generation
• Collaborate cross-functionally with product, design, and engineering teams to deliver intuitive, high-quality user experiences
• Apply strong UI/UX principles to create visually appealing and user-friendly interfaces
• Integrate and leverage AI-assisted development tools to accelerate delivery and innovation
• Ensure code quality through testing, code reviews, and adherence to best practices
• Stay current with emerging trends in Generative AI, cloud computing, and mobile development

• 4–6+ years of experience in mobile or full-stack application development
• 5+ years of hands-on experience with AWS cloud services and serverless architecture
• Proven experience building and deploying applications using Large Language Models (LLMs) and RAG pipelines
• Strong understanding of UI/UX design principles and modern frontend development
• Experience with REST APIs, microservices architecture, and cloud integrations
• Proficiency in one or more modern programming languages (JavaScript/Type Script, Python, etc.)
• Strong problem-solving skills and ability to work in a fast-paced, agile environment

• Experience with React Native and a track record of shipping apps to the App Store or Google Play
• Recent hands-on use of AI-assisted coding tools (e.g., Cursor, Claude, Copilot)
• Experience working with big data technologies (e.g., Spark, Hadoop, data pipelines)
• Familiarity with CI/CD pipelines and Dev Ops practices

Seneca Resources is an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.