Senior Software Engineer - Kafka, API & UI Innovator

Jobtailor; Denver (CO); On-site; USD 120,000 - 160,000; Full time

Job summary

Gravitee is seeking a senior full-stack engineer to design and deliver features end to end, from discovery and design through implementation, testing, release, and iteration. You will build responsive interfaces with TypeScript and Angular, and design Java-based APIs and services, contributing to the gateway runtime with async, non-blocking patterns.

Collaborate with product managers, designers, engineers, and leaders to review code, validate AI-assisted work, and strengthen reliable delivery

Qualifications

• 5+ years building and operating full-stack production apps.
• Strong Java experience and REST API design.
• Strong TypeScript frontend experience with a component-based framework.
• Experience building data-rich user interfaces.
• Understanding of API design, distributed systems, and asynchronous workflows.
• Experience with automated testing, Git-based development, code review, and iterative delivery.
• Experience with MongoDB or relational databases.
• Experience with Elasticsearch or OpenSearch.
• Hands-on with LLMs or AI coding assistants in engineering workflows.
• Knowledge of OAuth 2.0 and OpenID Connect security.

Responsibilities

• Design and deliver features end to end, from discovery and design through implementation, testing, release, and iteration
• Build responsive interfaces and data visualizations using TypeScript and Angular
• Design and develop Java-based APIs and services
• Contribute to Gravitee's core gateway runtime using asynchronous and non-blocking design patterns
• Help customers configure and observe AI Gateways, MCP tools and servers, agent identity, and agent-to-agent interactions
• Model and transform operational data into understandable and actionable insights
• Contribute to Gravitee's open-source platform and Enterprise Edition
• Use LLMs and AI-assisted development tools for prototyping, implementation, testing, debugging, and exploration
• Validate AI-generated work for correctness, security, maintainability, and performance
• Write automated tests and contribute to reliable delivery practices
• Collaborate with product managers, designers, engineers, and technical leaders through code and design reviews
• Share knowledge and help the team make practical technology and protocol choices

Skills

Java Development

TypeScript Frontend Development

API Design and Development

Automated Testing

Cloud-Native Application Delivery

Tools

Angular

Vert.x

RxJava

Netty

OpenAPI

OAuth 2.0

OpenID Connect

Model Context Protocol

Agent2Agent

Docker

Kubernetes

MongoDB

Elasticsearch

Job description

Gravitee is seeking a senior full-stack engineer to design and deliver features end to end, from discovery and design through implementation, testing, release, and iteration. You will build responsive interfaces with TypeScript and Angular, and design Java-based APIs and services, contributing to the gateway runtime with async, non-blocking patterns.

Collaborate with product managers, designers, engineers, and leaders to review code, validate AI-assisted work, and strengthen reliable delivery