Principal Engineer / Head of Engineering

Principal Engineer / Head of Engineering

This range is provided by Aegistech. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

$150,000.00/yr – $200,000.00/yr

Direct message the job poster from Aegistech

We are migrating our backend from Flask to Django to improve our API structure, maintainability, and scalability. As our Principal Engineer , you will be responsible for building out new APIs and services while ensuring a smooth transition to Django. You’ll work closely with the founding team and product leaders to design, implement, and scale backend systems that support high-volume enterprise use cases.

Responsibilities:

• Develop and maintain backend services using Django, PostgreSQL, and Redis.
• Design and implement RESTful APIs , ensuring clean architecture and maintainability.
• Collaborate with frontend engineers and product teams to define API contracts .
• Work on database modeling and optimization to support large-scale data interactions.
• Assist in migrating existing Flask services to Django , ensuring a smooth transition.
• Deploy, monitor, and optimize services using AWS (EC2, S3, CloudFormation, ECS) .
• Implement CI/CD pipelines and DevOps best practices for automated deployments.
• Troubleshoot performance bottlenecks and improve system reliability .

Requirements:

• 5+ years of backend engineering experience , ideally working with Django or Flask.
• Experience designing and maintaining APIs , following best practices for scalability and security.
• Strong database skills (PostgreSQL preferred) and experience with query optimization.
• Hands-on experience with AWS services (EC2, S3, CloudFormation, ECS).
• Familiarity with Docker, Kubernetes, or other DevOps tools is a plus.
• Strong problem-solving skills and the ability to work in a fast-moving environment.

Bonus Points:

• Experience with Flask-to-Django migrations or building Django-based APIs from scratch.
• AI API Integrations.
• Familiarity with Stripe, Google Pay for Passes, Apple Wallet, and APNS .
• Experience setting up CI/CD pipelines (GitHub Actions, etc.) .
• 25 days of holiday + bank holidays.
• 1 fully paid volunteering day per year.
• Flexible remote work — work from anywhere or join us in our Marylebone, London office.
• Personal development budget to support your learning.
• Regular team outings in central London and abroad.
• Opportunity for equity reward .

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology

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