Senior Software Engineer

F2Onsite; Fort Worth (TX); Hybrid; USD 120,000 - 180,000; Full time

Job summary

F2OnSite seeks a Senior Software Engineer in Fort Worth, TX, on a hybrid schedule (3 onsite days: Tue–Thu) to build scalable real-time streaming solutions. You’ll work with Java, Flink, Kafka, Spring Boot, and AWS to design event-driven microservices.

The role focuses on production-grade streaming apps, cloud-native deployment in AWS, and Kubernetes environments, collaborating across architecture, DevOps, and QA teams.

Qualifications

• Bachelor's degree in CS, Eng, or related field or equivalent experience.
• 7+ years professional Java development experience.
• 3+ years building production streaming apps with Flink, Kafka Streams, Spark Streaming, or similar.
• Experience deploying cloud-native apps on AWS with Docker and Kubernetes.

Responsibilities

• Design, develop, test, deploy, and maintain Java-based Flink streaming apps.
• Build scalable data pipelines using Kafka/MSK.
• Develop Spring Boot microservices with REST/GraphQL APIs.
• Implement fault-tolerant streaming with state management and checkpointing.
• Deploy and monitor apps using Docker, Kubernetes, AWS MSF/MSK.
• Collaborate with architects, DevOps, QA, and stakeholders; drive production readiness.
• Troubleshoot production issues; improve observability with logs, metrics, dashboards.

Skills

Java

Apache Flink

Kafka

Spring Boot

AWS

Kubernetes

REST/GraphQL

Education

Bachelor's degree in Computer Science

Tools

Docker

Job description

Senior Software Engineer - Fort Worth. TX - Hybrid

• Monday-Friday, Standard Business Hours
  
  
  
  • (Flexible schedules available such as 7:00-3:00, 8:00-4:00, or 9:00-5:00)
  
  
  
  


• Projected Start Date - 8/24/2026 - 6-Month Contract (Extension Possible)


• Fort Worth, TX (Hybrid - 3 days onsite, 2 days remote)
  
  
  
  • Onsite days are Tuesday, Wednesday & Thursay
  
  
  
  

What We Are Looking For

We are looking for a senior-level engineer who thrives in fast-paced environments and enjoys building scalable, real-time streaming solutions. The ideal candidate is collaborative, proactive, and passionate about developing resilient cloud-native applications that power critical business operations.

We are seeking an experienced Senior Software Engineer with a strong background in real-time streaming applications and cloud-native development. This role focuses on designing and delivering highly scalable, event-driven applications using Java, Apache Flink, Kafka, Spring Boot, and AWS technologies.

The ideal candidate has extensive experience building production-grade streaming applications, developing microservices, and deploying cloud-native solutions in AWS and Kubernetes environments.

Key Responsibilities

• Design, develop, test, deploy, and maintain Java-based Apache Flink streaming applications.


• Build scalable, event-driven data pipelines using Kafka/MSK.


• Develop Spring Boot microservices along with REST and GraphQL APIs.


• Implement fault-tolerant streaming applications utilizing Flink state management, checkpointing, and recovery capabilities.


• Deploy, monitor, and support cloud-native applications using Docker, Kubernetes, AWS Managed Service for Apache Flink (MSF), and AWS MSK.


• Participate in architecture discussions, code reviews, performance optimization, and production readiness planning.


• Collaborate with architects, DevOps engineers, QA teams, and business stakeholders to deliver reliable software solutions.


• Troubleshoot production issues and enhance application observability through logging, metrics, dashboards, and alerting.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience).


• 7+ years of professional Java development experience.


• Strong experience with Java 8 or Java 11+.


• 3+ years developing production streaming applications using Apache Flink, Kafka Streams, Spark Streaming, or similar technologies.


• Hands-on experience with:
  
  
  
  • Apache Flink (DataStream API, state management, checkpointing, fault tolerance)
  
  
  • Apache Kafka or AWS MSK
  
  
  • Spring Boot microservices
  
  
  • RESTful APIs and/or GraphQL
  
  
  
  


• Experience deploying applications using AWS, Docker, and Kubernetes.


• Familiarity with schema management using Avro, Protobuf, JSON, or Schema Registry.


• Experience with CI/CD pipelines, Git, automated testing, and deployment automation.


• Strong understanding of application monitoring, logging, metrics, tracing, and production support.

Preferred Qualifications

• AWS Managed Service for Apache Flink (MSF)


• AWS MSK


• GraphQL / Apollo GraphQL


• Flink SQL


• Kafka Streams or similar stream-processing frameworks


• Prometheus, Grafana, CloudWatch, or similar monitoring tools


• API and cloud security best practices


• Experience with SaaS or multi-tenant platforms


• Experience supporting high-volume, low-latency systems


• Background in airline, transportation, logistics, or other mission-critical operational environments

Additional Information

• F2OnSite supports and adheres to all state laws regarding background checks.