Vertex Sigma Software
Vertex Sigma Software

Software Engineer

TLDR

Build cloud-native microservices, APIs, and event-driven systems integrating IoT devices and real-time data through Kafka or RabbitMQ.

Overview

We are looking for a skilled Software Engineer to design and deliver scalable, cloud-native microservices within our Connected Services platform. You will own the full software lifecycle — from architecture through deployment — building robust APIs and event-driven systems that power real-time device and data integrations.

Responsibilities

  • Design and develop RESTful and event-driven microservices using Java 17+ and Spring Boot 3
  • Build and maintain integrations with IoT devices, third-party APIs, and connected platforms
  • Implement messaging pipelines with Kafka or RabbitMQ for real-time data streaming
  • Write clean, testable code with JUnit, Mockito, and integration test suites
  • Collaborate with product and DevOps on CI/CD pipelines using Docker, Kubernetes, and Helm
  • Participate in architecture reviews and define best practices for the team

Requirements

Required Skills

  • 5+ years with Java and the Spring Boot ecosystem; Java 17+ preferred
  • Strong knowledge of Spring Cloud, Spring Security, and Spring Data JPA
  • Experience with Kafka, RabbitMQ, or similar messaging technologies
  • Familiarity with OAuth 2.0, JWT, and API security patterns
  • Proficient with SQL/NoSQL databases, including PostgreSQL, MongoDB, and Redis
  • Hands-on with Docker and Kubernetes in cloud environments (AWS, GCP, or Azure)
  • Contributions to open-source Java or Spring Boot projects

Nice to Have

  • Experience with MQTT, AMQP, or CoAP for IoT device communication
  • Knowledge of OpenAPI / Swagger specification and contract-first design
  • Exposure to service mesh technologies, including Istio and Linkerd, and observability tooling

Vertex Sigma Software specializes in connecting highly skilled technology consultants with significant and challenging assignments across diverse industries. We cater to the upper echelon of independent professionals in the gig economy, facilitating a flexible work environment that empowers both consultants and companies to thrive together.

Founded
Founded 2017
Employees
51-200 employees
Industry
information technology and services
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