Oussema Miled
Oussema Miled

Senior Backend Engineer

Open to offers · Member since 26 Jul 2026
Message
Location
Leipzig, Germany
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Part Time
Experience level
Senior

About

Professional summary

I am a backend engineer with five years of experience building TypeScript services on AWS, mainly for data-heavy products.

My work has focused on third-party API integration, database design, query performance, and the CI and observability tooling that supports reliable delivery.

I am based in Leipzig and have been working remotely since 2021. I have experience delivering production systems in distributed teams and collaborating across engineering, product, and customer success.

I have built serverless architectures, implemented policy-based authorization, and improved performance across backend and frontend systems. I also enjoy working on systems that need to scale predictably and remain maintainable over time.

In recent roles, I have owned major technical initiatives end to end, including smart-metering integrations, audit systems, and performance optimization work. I value clear engineering documentation and practical tooling that helps teams move faster.

I am open to opportunities where I can continue working on backend platforms, cloud infrastructure, and high-impact product engineering.

Skills

31 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Software Engineer Predium GmbH

I built the smart-metering integration solo, connecting the platform to more than 10 third-party provider APIs with different authentication models, rate limits, and failure modes.

I designed and shipped the platform's audit system, giving teams and customers a reliable record of who changed what and when. I also added Grafana dashboards to identify performance bottlenecks and then fixed them, cutting query times by up to 17x, including a slow data-export path.

I halved CI runtime on two separate occasions by restructuring GitHub Actions pipelines. I also coordinated projects across engineering, product, and customer success, and wrote engineering documentation used as a team reference and as context for AI coding tools.

Software Engineer demicon GmbH

I designed a serverless AWS architecture around DynamoDB single-table design, modeling partition and sort keys to application access patterns for predictable scaling.

I built policy-based authorization with Rego and OPA over sensitive automotive data to enforce TISAX compliance requirements. I also led an end-to-end frontend rebuild from Next.js to Angular, improving load performance by 80% and raising Jest test coverage above 90%.

Full Stack Developer Ikraa en ligne (almourabi.com)

I built and maintained the company web platform, which served a user base of over 50,000.

I led the migration from self-hosted infrastructure to the cloud, raising system availability to near 100%. I also owned deployment and monitoring of the production stack, supporting stable operations for the platform.

Education

Learning history

National Institute of Applied Science and Technology (INSAT)

5-year National Engineering Diploma, Computer Science Engineering

I completed a five-year engineering diploma in Computer Science Engineering.

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