At First Orion, we build innovative communication and messaging platforms that help businesses connect with their customers in more trusted and meaningful ways. Our solutions power branded calling and messaging experiences for enterprises and telecom partners, improving transparency and engagement across billions of communications.

We are building cloud-based messaging and communication platforms that enable businesses to connect with their customers at scale. Our systems support platform provisioning, inbound and outbound message processing, webhook integrations, partner onboarding, customer portals, and real-time notifications.

What You'll Do

• Design and evolve scalable microservices for high-volume messaging platforms on AWS

• Build and maintain reactive backend services using Kotlin, Spring Boot, and WebFlux

• Develop secure REST APIs and asynchronous worker services for event-driven processing

• Contribute to Vue 3 / TypeScript frontend applications and customer portals

• Design event-driven systems using SQS, Kinesis, and DynamoDB

• Implement observability, monitoring, and performance optimization

• Lead architectural discussions, mentor engineers, and review code

• Collaborate with Product, QA, and DevOps to deliver reliable cloud services

Technology Stack Team Uses

• Back-end: Kotlin, Spring Boot 3, WebFlux, Coroutines

• Front-end: Vue 3 (Composition API), TypeScript, Tailwind

• Cloud: AWS (DynamoDB, SQS, S3, Kinesis, IAM, KMS)

• DevOps: Docker, Gradle, Bitbucket Pipelines, OpenTelemetry, Terraform, Kubernetes

• Testing: JUnit, MockK, Vitest

What You'll Need

• 3+ years of experience designing and building backend services in cloud-based environments

• Strong experience with Java and Spring Boot (Spring Boot 3 preferred)

• Experience developing and operating applications in AWS cloud environments and using tools like: DynamoDB, SQS, S3, Kinesis, IAM, KMS

• Experience building REST APIs and microservices architectures

• Experience with event-driven systems and asynchronous processing

• Experience with testing frameworks such as JUnit, MockK, Vitest, or equivalent tool

Nice to Have

• Experience with DevOps tooling such as Docker, Terraform, Kubernetes, or CI/CD pipelines

• Experience with messaging or telecommunications platforms

• Event-driven architecture at scale

• AWS certifications or deep AWS platform experience

• Experience with WAF/CloudFront and partner integrations

Company Benefits:

Balancing the work-life flow is key to health and happiness! That is why we offer one of the most competitive packages in our industry with open PTO, company paid holidays, Flex Fridays and flexible work arrangements. We strongly value the health and wellness of our teammates and through our state-of-the-art fitness center we’re helping our teammates reach their wellness goals while at work. Add on generous health and dental/vision options, retirement plans, learning and development programs, career path frameworks, tuition reimbursement, company options and bonus potential you have many ways to take advantage of a comprehensive benefits package that means the most to you!

Learn More About First Orion:

First Orion helps businesses generate more revenue, increase efficiency, and improve the customer experience by empowering them to brand their phone calls with their name, logo and reason for calling. We are the market leader in branded communications technology, and a trusted partner to Fortune 500 companies and the largest U.S. mobile carriers.

• First Orion has been voted a Great Place to Work with top rankings in every category.
• Learn more about what our employees have to say on our First Orion Glassdoor page and watch our People First Diversity Statement/Video.
• First Orion Culture Cornerstones are at the core of everything we do here.

Disclosure:

First Orion is an Affirmative Action and Equal Opportunity Employer. This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Activities, duties, and responsibilities may change at any time with or without notice, based on the changing needs of our business.

This position is not eligible for employment-based immigration visa/status sponsorship. Employees are required to demonstrate proper work authorization as required by I-9 compliance.

First Orion is interested in every qualified candidate who is eligible to work in the United States. First Orion’s immigration sponsorship policy is applied in a nondiscriminatory fashion regardless of race, gender, ethnic origin, or any other classification protected by law.