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Software Development Engineer III - Full Stack

Insight Engines

Insight Engines

Software Engineering
Seattle, WA, USA
USD 137,600-206,400 / year + Equity
Posted on Oct 29, 2025

At F5, we strive to bring a better digital world to life. Our teams empower organizations across the globe to create, secure, and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity, from protecting consumers from fraud to enabling companies to focus on innovation.

Everything we do centers around people. That means we obsess over how to make the lives of our customers, and their customers, better. And it means we prioritize a diverse F5 community where each individual can thrive.

What will you do?

Our Software Development Engineer provides software development support by analyzing business requirements to design and develop appropriate systems solutions according to specifications. They provide technical expertise in evaluating, designing, developing, deploying, monitoring, and supporting systems and procedures that are cost-effective and improve work efficiency. Additionally, the Software Development Engineer partners Solution Architects to ensure that the application meets company service level standards and roadmap requirements.

Your Primary Responsibilities will include:

  • Full-Stack Development: Design, develop, and maintain scalable systems, combining frontend development using React/Next.js with TypeScript and backend development with Java (Spring Boot, Hibernate) and additional backend languages like Node, Python, or Go.

  • Backend Expertise with Java: Build high-performance, scalable backend systems using modern Java frameworks (Spring Boot, Hibernate). Ensure APIs, microservices, and integrations are robust, efficient, and secure.

  • Cloud Services: Implement and maintain cloud-native applications on Azure or AWS, leveraging managed services such as computing, networking, databases (e.g., Postgres, DynamoDB, Cosmos DB), and object storage (e.g., S3, Azure Blob).

  • Proficient in implementing robust testing strategies for Java applications using frameworks such as JUnit, TestNG, Mockito, Selenium, and Cucumber.

  • Event-Driven Architecture: Design and implement event-driven systems using tools such as Solace, Kafka, or AWS SNS/SQS, ensuring real-time communication and asynchronous workflows.

  • DevOps & CI/CD: Create and maintain CI/CD pipelines with tools like GitHub Actions, Azure DevOps, or Jenkins, streamlining deployment processes.

  • Infrastructure as Code (IaC): Utilize IaC tools like Terraform, ARM, or Bicep to manage cloud configurations and provision reliable infrastructure.

  • Containerization & Orchestration: Develop and deploy scalable containerized applications using Docker and Kubernetes (e.g., AKS/EKS).

  • AI-Driven Approaches: Improve products using AI tools, integrating AI-powered features such as predictive analytics or generative workflows into applications.

  • Collaboration & Agile: Collaborate with architects, product owners, and business stakeholders in an Agile/Scrum environment, offering reliable LOE (Level of Effort) estimates and technical recommendations.

  • Production Support & Operations: Monitor, troubleshoot, and resolve issues in production, ensuring solutions meet performance, reliability, and security standards.

  • Analyze and translate business requirements and acceptance criteria into functional and non-function system requirements

  • Design reliable/scalable/reusable/future-proof technical solutions to the business requirements/specifications/acceptance criteria and can effectively present your technical solutions to the review board in the format of POC or flow diagrams.

  • Write technical design documents when needed and document complex solutions to share with your peers

  • Work with solution architects to craft a technical solution that meets the company’s service level standard, security requirement and minimizes the dependency of the upstream teams and the impact to the downstream teams

Other Responsibilities

  • Responsible for upholding F5’s Business Code of Ethics and for promptly reporting violations of the Code or other company policies.

  • Perform other related duties as assigned.

What do you need to be successful in this role?

  • 6+ years building full-stack systems at scale

  • Strong Experience in React.js, Next.js, TypeScript, JavaScript, Node.js, Python, Go, Java

  • Experience with responsive design and UI/UX best practices.

  • Strong object-oriented programming skills.

  • Hands-on experience with AWS (S3, DynamoDB, Aurora, Kinesis) and Azure (Blob Storage, CosmosDB, AKS). Proficient in utilizing compute, networking, and managed database solutions.

  • CI/CD Tools: GitHub Actions, Azure DevOps, Jenkins

  • Infrastructure as Code: Terraform, Bicep, ARM templates

  • Experience automating deployments and streamlining workflows.

  • Expertise in Docker containerization and Kubernetes (EKS, AKS) for deploying and scaling applications.

  • Databases: PostgreSQL, MySQL, CosmosDB

  • Additional Tools: Redis (caching), Elasticsearch (search), Kafka (eventing)

  • Production-ready experience with monitoring, logging, and ensuring security in distributed systems.

  • Tools: Logging/monitoring platforms such as Prometheus, Grafana, and CloudWatch.

  • Excellent communicator who translates product/customer needs into robust technical solutions.

  • Leverages AI tools to boost team productivity — uses AI-assisted development and automation to create multiplier effects across the org.

  • BS/MS in CS or equivalent experience.

  • Strong skills in communicating with different roles in a scrum team.

  • Strong knowledge and working experience in object-oriented programming

  • Excellent analytical, critical thinking, and problem-solving skills

Our values:

At F5 we live and breathe our core values, Excellence, Integrity, Collaboration, Customer Loyalty, Profitable Growth, Innovation, Employee Success, and Diversity. We help each other achieve our goals, value the diversity of ideas different backgrounds can bring, emphasize teamwork over rock-stars, work hard and most of all have fun

The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However, the description may not be all-inclusive, and responsibilities and requirements are subject to change.

The annual base pay for this position is: $137,600.00 - $206,400.00

F5 maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, geographic locations, and market conditions, as well as to reflect F5’s differing products, industries, and lines of business. The pay range referenced is as of the time of the job posting and is subject to change.

You may also be offered incentive compensation, bonus, restricted stock units, and benefits. More details about F5’s benefits can be found at the following link: https://www.f5.com/company/careers/benefits. F5 reserves the right to change or terminate any benefit plan without notice.

Please note that F5 only contacts candidates through F5 email address (ending with @f5.com) or auto email notification from Workday (ending with f5.com or @myworkday.com).

Equal Employment Opportunity

It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race, religion, color, national origin, sex, sexual orientation, gender identity or expression, age, sensory, physical, or mental disability, marital status, veteran or military status, genetic information, or any other classification protected by applicable local, state, or federal laws. This policy applies to all aspects of employment, including, but not limited to, hiring, job assignment, compensation, promotion, benefits, training, discipline, and termination. F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. Request by contacting accommodations@f5.com.