Full Stack Developer – Next.js / Node.js / AI Systems

AppVault, LLC; Atlanta (GA); On-site; USD 120,000 - 160,000; Full time

Job summary

AppVault is seeking a Full Stack Developer to join a fast-moving team building a cutting-edge recruitment platform. You’ll own features end-to-end using Next.js, Node.js, and PostgreSQL, shipping clean, scalable code and collaborating across product and design.

AI sits at the core—build AI-powered features, integrate LLMs, knowledge graphs, and autonomous workflows, with real-time capabilities via WebSockets, while ensuring robust testing and performance as the product scales.

Qualifications

• 3+ years working with Next.js, Node.js, and PostgreSQL
• Strong grasp of HTML, CSS, and JavaScript fundamentals
• Experience building with LLMs (OpenAI, Anthropic, etc.)
• Familiarity with AI Agents, vector databases, or RAG architectures
• Comfort with Git, code reviews, and collaborative workflows
• Strong problem-solving instincts and good communication
• A genuine curiosity about what's next in AI and a track record of acting on it

Responsibilities

• Own features end-to-end on a small, high-trust engineering team
• Ship regularly, and directly influence how the product evolves
• Explore new tools, patterns, and approaches and share learnings with the team

Skills

Next.js

Node.js

PostgreSQL

Web fundamentals

LLMs experience

AI Agents

Vector databases

RAG architectures

Git & code reviews

Problem solving

Communication

Curiosity about AI

Job description

AppVault is a super fast-moving recruitment technology platform helping enterprise clients hire smarter. We're looking for a Full Stack Developer who's energized by meaningful work, moves quickly, and takes pride in clean, scalable code — and who gets genuinely excited about what's possible at the edge of the stack, especially when AI is involved.

You'll be a core contributor on a small, high-trust engineering team — owning features end-to-end, shipping regularly, and directly influencing how our product evolves. We're looking for someone who doesn't just meet the technical bar but pushes past it, with a habit of exploring new tools, patterns, and approaches and bringing what you learn back to the team.

What You'll Build

• Web applications using Next.js, Node.js, and PostgreSQL

• RESTful APIs and real-time features with WebSockets

• Performant, responsive UIs that hold up at scale

• AI-powered features embedded directly into our recruitment platform

• Clean, well-reviewed code with testing and debugging baked in

Where We're Heading

AI isn't an afterthought here — it's central to our roadmap. You'll have the opportunity to work on:

• Knowledge graph systems that connect candidate, job, and workforce data intelligently

• AI agents that automate and augment recruiter workflows

• LLM integrations that make our product smarter with every interaction

• Autonomous and multi-step reasoning systems that push what recruitment technology can do

What You Bring

• 3+ years working with Next.js, Node.js, and PostgreSQL

• Strong grasp of HTML, CSS, and JavaScript fundamentals

• Experience building with LLMs (OpenAI, Anthropic, etc.)

• Familiarity with AI Agents, vector databases, or RAG architectures

• Comfort with Git, code reviews, and collaborative workflows

• Strong problem-solving instincts and good communication

• A genuine curiosity about what's next in AI and a track record of acting on it

Bonus Points

• Azure DevOps and cloud hosting experience

• Hands-on work with AI agents, autonomous workflows, or multi-step reasoning systems

• Serverless architecture or Docker/Kubernetes familiarity

• Experience with Jest, Mocha, or similar testing frameworks

• Agile/Scrum background

Why AppVault

We're a lean, bootstrapped team building technology that real enterprise clients depend on every day. You won't be a ticket number here — you'll own work that ships, shapes the product, and pushes the boundaries of what recruitment technology can do. Competitive salary, strong benefits, and real room to grow.