Full stack developer Jobs in New York, NY

Job Description

We are seeking a highly skilled Full Stack Developer to design, develop, and deploy AI-driven digital solutions for Life Insurance business applications. The ideal candidate will possess strong full-stack development expertise along with hands-on experience in AI technologies, agentic workflows, prompt engineering, and Large Language Model (LLM) integrations.

This role will focus on building real-time AI-powered applications that enhance customer experience, underwriting, servicing, claims processing, agent productivity, knowledge management, and operational efficiency.

The successful candidate will work closely with business stakeholders, solution architects, data engineers, and digital product teams to deliver enterprise-grade AI solutions.

This role is for someone who is based in the NYC Metro Area, passionate about building real-world GenAI applications and bringing them into production, while continuously improving performance, reliability, and user outcomes.

Qualifications

Responsibilities

AI & Prompt Engineering

• Design, develop, and optimize prompts for Large Language Models (LLMs) including OpenAI Codex, GPT, Claude, Gemini, and other enterprise AI platforms.
• Build AI-powered workflows, copilots, virtual assistants, and intelligent agents for insurance business processes.
• Develop Retrieval-Augmented Generation (RAG) solutions using enterprise knowledge repositories and policy documentation.
• Implement prompt testing, evaluation, and optimization frameworks to improve accuracy, consistency, and reliability.
• Design agent-based solutions using tools, skills, plugins, function calling, workflows, and orchestration frameworks.
• Create reusable prompt libraries and AI solution accelerators.
• Monitor AI performance metrics and continuously improve model outcomes.

Application Development

• Design and develop modern web applications using React.js and related frontend technologies.
• Build RESTful APIs and microservices using Python Flask.
• Integrate AI services into enterprise digital applications.
• Develop real-time applications supporting customer service, underwriting, policy servicing, and claims workflows.
• Implement authentication, security, and scalability best practices.

Data & Integration

• Connect AI applications to enterprise systems through APIs and service layers.
• Work with structured and unstructured data sources supporting AI use cases.

Architecture & Delivery

• Participate in AI solution architecture and technology selection.
• Conduct proof-of-concepts and rapid prototypes.
• Collaborate with cloud, data, and application teams.
• Follow DevOps, CI/CD, and Agile development practices.
• Maintain documentation, technical specifications, and AI governance controls.

Education

• Bachelor's Degree in Computer Science, Information Technology, Engineering, Data Science, or related discipline.

Experience

• Minimum 4+ years of software engineering experience.
• Minimum 2+ years developing AI-powered applications or Generative AI solutions.
• Experience in Life Insurance, Financial Services, or regulated industries is highly preferred.

Technical Skills / Exposure

Front-End Development

• React.js
• JavaScript / TypeScript
• HTML5 / CSS3
• Responsive UI development

Backend Development

• Python
• Flask API Development
• REST APIs
• Microservices Architecture

Database Technologies

• SQL Server, PostgreSQL, MySQL, or Oracle
• Database design and optimization
• Query performance tuning

AI & Generative AI

• Prompt Engineering
• Large Language Models (LLMs)
• OpenAI GPT/Codex
• Anthropic Claude
• Google Gemini
• AI Agents and Agentic Workflows
• RAG (Retrieval Augmented Generation)
• Vector Databases
• Embeddings
• Fine-Tuning Concepts
• Model Evaluation Techniques
• Tool Calling and Function Calling

AI Frameworks & Tools

• Claude (co-work, code and design)
• Microsoft Copilot Studio
• AI Skills and Plugin Development
• Workflow Orchestration Frameworks

Cloud & DevOps

• Git/GitHub
• Azure DevOps
• CI/CD Pipelines

Desired Competencies

• Strong analytical and problem-solving abilities.
• Ability to quickly learn emerging AI technologies.
• Excellent communication and stakeholder engagement skills.
• Strong understanding of responsible AI practices.
• Ability to work independently in a fast-paced environment.
• Strong focus on solution quality, scalability, and business outcomes.

Additional Information

Success Criteria

Within the first 6 months, the candidate will:

• Deliver production-ready AI-powered digital applications.
• Build reusable prompt engineering frameworks and AI accelerators.
• Develop real-time AI agents supporting insurance operations.
• Improve operational efficiency and customer experience through Generative AI solutions.
• Establish best practices for AI application development, governance, and monitoring.

Benefits

• Competitive salary with equity options
• Robust health, dental, and vision benefits for employee and dependents
• 401k matching contributions
• Generous PTO policy
• Provided work-from-home equipment

Afficiency is an Equal Opportunity Employer. All your information will be kept confidential according to EEO guidelines.