Senior Backend Engineer

About Herontower Security:

Based in Fort Collins, Herontower Security also trains client staff and runs simulated phishing campaigns. Incident response is a big part of the work: ransomware recovery, business email compromise and forensic investigations. We write internal post-mortems after every major engagement, including what went wrong.

What this job is:

Herontower Security is hiring for the Senior Backend Engineer position to build and run the APIs and services behind our web and mobile apps. Employment is through our payroll partner in Bangladesh. Salary is paid monthly in taka. Core hours overlap with US Central time, 9:00 AM to 1:00 PM CT. Reliable internet and a power backup are a must.

What you'll work on:

• Write integration and contract tests so API changes don't break consumers
• Add caching with Redis where it actually helps, and remove it where it doesn't
• Document APIs in OpenAPI and keep the docs current
• Reduce cloud costs by right-sizing services and cleaning up unused resources
• Handle on-call for services the team owns and lead incident follow-ups
• Secure endpoints with OAuth 2.0, JWT validation and proper input checks
• Containerize services with Docker and deploy them to Kubernetes or ECS

Requirements:

• 5+ years of backend development experience in a production environment
• Understanding of concurrency, transactions, idempotency and retries
• Working knowledge of message queues or streaming platforms
• Proficiency in at least one of Go, Java, Kotlin, Python, C# or Node.js
• Clear written communication, including design docs
• Familiarity with Docker and CI/CD pipelines

What we offer:

Salary range: BDT 220,000 - BDT 290,000 per month

• Performance bonus
• Flexible hours
• Co-working space stipend
• Company laptop

Please submit your CV in English.

Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Herontower Security, LLC.