Sigma Software Vertex

Software Engineer

Posted Yesterday

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Dearborn, MI, USA

In-Office

Senior level

Information Technology • Software • Consulting

The Role

Design and deliver cloud-native Java 17 / Spring Boot 3 microservices and APIs. Build event-driven systems integrating IoT devices and third-party platforms using Kafka/RabbitMQ, implement security (OAuth2/JWT), write unit and integration tests, and collaborate on CI/CD with Docker, Kubernetes, and Helm.

Summary Generated by Built In

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

RequirementsRequired 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

Skills Required

5+ years with Java and the Spring Boot ecosystem (Java 17+ preferred)
Experience with Spring Cloud, Spring Security, and Spring Data JPA
Experience building RESTful and event-driven microservices (Spring Boot 3)
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 experience with Docker and Kubernetes in cloud environments (AWS, GCP, or Azure)
Experience writing tests and test suites using JUnit, Mockito, and integration testing
Contributions to open-source Java or Spring Boot projects
Experience with MQTT, AMQP, or CoAP for IoT device communication
Knowledge of OpenAPI / Swagger specification and contract-first design
Exposure to service mesh technologies (Istio, Linkerd) and observability tooling

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The Company

HQ: Winston Salem, NC

22 Employees

Year Founded: 2011

What We Do

Sigma Software Vertex is where engineering excellence meets human connection. As part of Sigma Software Group, a global tech powerhouse with 2,000+ experts across 20 countries, we bring 22+ years of award-winning IT consulting into a bold, fresh context. We believe in loyalty, real relationships, and helping both talent and companies grow to their full potential. With roots in Swedish values and a global reach, we specialize in connecting ambitious engineers with forward-thinking companies across industries. Our name says it all: Vertex is the peak, and we’re here to climb it with you. Whether you're a client or a consultant, this is a place to build, evolve, and thrive.