Lead Backend Developer

Work mode	HYBRID
Location	Budapest, Budapest
Compensation	None
Contact	Orsolya Rozgonyi
Contact Email	orsolya.rozgonyi@today-experts.com
Contact Phone	+36705559258
Start date	None
English Proficiency	C1-C2/Native

Introduction

We are looking for a Lead Backend Developer to join our expert team for a long-term project.

Take ownership of backend integration and migration efforts within the Platform Integration Team.
Deliver well-defined development stories independently, with a strong understanding of architecture, frameworks, and tools.
Design, build, and operate cloud infrastructure and backend microservices powering the platform.
Develop secure, scalable, high-performing services primarily in PHP, with supporting components in Node.js/TypeScript.
Build and maintain infrastructure using AWS CDK constructs, supporting automation across environments.
Contribute actively to code reviews, testing practices, and overall service stability.
Implement monitoring, logging, and alerting solutions to ensure observability and reliability.
Apply cloud security best practices, including IAM policies, secrets management, and safe handling of sensitive data.
Support and mentor junior engineers, fostering collaboration, knowledge sharing, and constructive feedback.
Promote healthy development flow through Agile processes and iterative improvements.
Leverage AI tools to accelerate development, debugging, testing, and research while validating outputs responsibly.
Understand core LLM concepts (tokens, context length, hallucinations) and recognize safe vs. unsafe AI use cases.

Experience with SQL databases (e.g., PostgreSQL), schema design, and performance optimization.
2–3+ years of hands-on experience working in AWS environments, including CI/CD pipelines and AWS CDK development.
Familiarity with Infrastructure as Code practices (Terraform or CloudFormation is a plus).
Practical containerization experience using Docker.
Experience with CI/CD workflows (GitHub Actions or equivalent).
Hands-on knowledge of monitoring and observability tools (CloudWatch, Datadog, Prometheus, ELK, etc.).
Strong understanding of security best practices in backend and cloud development.
Familiarity with AI-assisted engineering practices, prompt engineering, and ethical AI usage.
Excellent collaboration and communication skills, with experience documenting and discussing technical trade-offs.