We are looking for a Senior/Lead Full-Stack Engineer with a strong backend and product-integration focus, who will also play a key role in shaping engineering standards and development practices across the team.
This person will take ownership of turning business workflows and early MVPs into reliable, production-ready applications — and will establish the patterns and guidelines others follow, using our agreed engineering stack.
You move comfortably across product UI, backend APIs, database design, integrations, and production readiness — and you take real satisfaction in building not just features, but the foundation others build on.
Work split: ~70% backend/architecture/integrations, ~30% frontend/product workflows. This is not a people management role — impact comes through technical leadership: decisions, standards, and code.
Lead architecture decisions for our Internal Operational Platform and connected tooling, and define the engineering standards and code quality practices the team follows
Build and maintain full-stack applications (Java/Spring Boot + React/TypeScript), turning vibe-coded MVPs and prototypes into clean, production-ready services with typed APIs, proper auth, persistence, and observability
Design PostgreSQL schemas and Liquibase migrations, and integrate BigQuery reads and publish layers
Champion OpenAPI-first development and typed frontend API clients
Own backend observability (Actuator, Prometheus, structured logs)
Partner with business stakeholders to preserve product intent while raising technical quality
Backend: Java 21, Spring Boot 3.x, REST/OpenAPI contract-first development, PostgreSQL + Liquibase, Spring Security, and observability tooling (Actuator, Prometheus). Bonus if you've defined backend architecture standards, worked in multi-module Maven projects, or integrated legacy systems without rewriting them.
Frontend: React + TypeScript, API-driven UI, server-state management (e.g. TanStack Query), and a good instinct for loading/error/empty states and practical workflow UIs.
Data & Integration: Experience with BigQuery or a similar warehouse, and comfort reasoning about versioned data, source-of-truth boundaries, freshness, and cache/fallback behavior. Nice to have: Google APIs (Sheets, Drive, BigQuery), workflow automation tools like n8n.
AI-Assisted Development: Hands-on experience building with LLM tools and APIs (OpenAI, Claude/Anthropic, Cursor, Replit AI, or similar), and the judgment to evaluate, refactor, and productionize AI-generated code into a clean, maintainable stack.
Skills Required
- Java 21
- Spring Boot 3.x
- Maven
- REST API design and OpenAPI contract-first development
- PostgreSQL schema design
- Liquibase migrations
- Spring Security
- Actuator metrics, Prometheus, and structured backend logs (observability)
- React and TypeScript
- Vite
- API-driven UI and typed frontend API clients
- TanStack Query or equivalent server-state management
- Strong handling of loading, error, and empty states in UI
- Ability to build practical workflow UIs (not just static pages)
- BigQuery or similar data warehouse experience
- Understanding of versioned data, published views, source-of-truth boundaries, data freshness and cache rebuilds
- Hands-on experience with AI-assisted development and LLM integrations (e.g., OpenAI, Claude/Anthropic, Cursor, Replit AI)
- Ability to evaluate, refactor, and productionize AI-generated or vibe-coded applications into maintainable stacks
- Experience with multi-module Maven projects
- Experience integrating legacy systems without rewriting them
- Experience defining backend architecture standards and code review practices
- Google APIs such as Sheets and Drive
- Experience with n8n or workflow automation tools
What We Do
AI Digital is a leading end-to-end programmatic consultant and innovation partner, powered by AI and open garden framework. Founded in 2018, our global team of over 400specialists connects clients to audiences through a unique blend of human expertise and advanced technology — empowering brands and agencies with unbiased, AI-enhanced media solutions. We partner with all major advertising platforms to deliver measurable results that align with your business objectives and brand KPIs.
Why Work With Us
At AI Digital, we're a passionate and innovative global team fueled by a shared culture of collaboration and expertise. Our team members are true specialists in their fields, constantly pushing the boundaries of what's possible in programmatic media. We believe in the power of collective thinking and the strength that comes from diverse perspective
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