Java Technical Lead

Ethereum Technologies; Iowa; Vor Ort; USD 120.000 - 190.000; Vollzeit

Zusammenfassung

Ethereum Technologies is seeking a senior frontend/backend engineer to design modern, scalable interfaces and robust microservices. You will work across Angular frontend and Java backend, with OAuth2/OIDC security, OpenAPI docs, and cloud-native deployment on GCP.

Ideal candidates bring 4+ years Angular experience and 5+ years Java backend, plus strong database and Kubernetes skills for high-throughput systems.

Qualifikationen

• Frontend: 4+ years with Angular 17+ or 19, TypeScript, RxJS.
• Backend: 5+ years Java backend, Micronaut 4.9.3, OAuth2/OIDC.
• DB: PostgreSQL or AlloyDB with migrations (Flyway).
• Cloud: strong Google Cloud Platform (GCP) expertise.
• Kubernetes: hands-on with GKE, Docker, ingress and autoscaling.
• CI/CD: familiarity with GitHub Actions, GitLab CI, Cloud Build.

Aufgaben

• Design and develop frontend interfaces using Angular; ensure responsiveness.
• Implement state management and API integrations.
• Build and maintain microservices with Java 23 and Micronaut; ensure security and tests.
• Implement OAuth2/OIDC for enterprise access control.
• Model and optimize relational databases (PostgreSQL/AlloyDB).
• Configure Kubernetes, CI/CD pipelines, monitoring, and cloud infra.

Kenntnisse

Angular

TypeScript

RxJS

Microservices

OAuth2/OIDC

OpenAPI/Swagger

GKE / Kubernetes

CI/CD

RESTful APIs

Ausbildung

Bachelor's degree in Computer Science

Tools

Docker

Flyway

JDBI 3

PostgreSQL / AlloyDB

Terraform

OpenAPI tooling

Jobbeschreibung

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Responsibilities:

• Frontend Development Design and develop modern, responsive, and high-performance frontend interfaces using Angular 19.


• Implement state management, reactive programming patterns, and seamless API integrations.


• Backend & Microservices Architect, build, and maintain lightweight, high-throughput microservices using Java 23 and Micronaut 4.9.3 for ultra-fast startup and low memory footprint. Ensure high code quality, security, unit/integration test coverage, and clean RESTful API design with automated, self-documenting APIs using OpenAPI / Swagger.


• Implement robust Authentication & Authorization using OAuth2 and OIDC protocols for enterprise integration and access control across microservices.


• Database Architecture & Management Design, optimize, and manage enterprise relational database models using AlloyDB for PostgreSQL.


• Write efficient SQL queries using JDBI 3 for type-safe database operations, manage version-controlled schema migrations with Flyway, and optimize indexing and throughput for high scale.


• Cloud Infrastructure & DevOps Deploy, manage, and scale applications on GCP using GKE (Google Kubernetes Engine).


• Configure and maintain Kubernetes Orchestration, Load Balancing, and Auto-scaling policies to ensure 99.99% availability and optimal resource utilization.


• Implement CI/CD pipelines, automated testing, container security, and cloud monitoring/logging.

Requirements:

• Frontend: 4+ years of hands-on experience with modern Angular (experience with Angular 17+ or Angular 19 preferred), TypeScript, RxJS, and modern web UI libraries.


• Backend: 5+ years of experience with Java backend engineering (core Java 23), specifically with microservices frameworks like Micronaut 4.9.3 (for ultra-fast startup and low memory usage), along with OAuth2/OIDC security standards.


• Database: Deep experience with PostgreSQL or GCP AlloyDB, including data modeling, type-safe SQL with JDBI 3, version-controlled migrations using Flyway, and performance tuning.


• Cloud & DevOps: Strong expertise with Google Cloud Platform (GCP).


• Hands-on proficiency with Kubernetes (GKE), containerization (Docker), ingress/load balancing, and auto-scaling.


• Core Competencies Deep understanding of microservices architecture, event-driven design, and distributed system trade-offs.


• Experience with RESTful APIs, JSON, automated API documentation using OpenAPI / Swagger specifications, and gRPC.


• Familiarity with CI/CD tools (e.g., GitHub Actions, GitLab CI, Cloud Build) and Infrastructure as Code (e.g., Terraform).


• Strong problem-solving skills, architectural ownership, and passion for building scalable systems.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.