![Oussema Miled](https://jobicy.com/react/themes/app/images/avatar.jpg) Oussema Miled # Senior Backend Engineer Open to offers · Member since 26 Jul 2026 [Message](https://jobicy.com/dashboard-page.md) ShareLocationLeipzig, GermanyDesired salaryUnspecifiedWork preferenceRemote Only / Full Time, Part TimeExperience levelSenior * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI 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[Angular](https://jobicy.com/talent/angular.md)[API Integration](https://jobicy.com/talent/api-integration.md)[Authorization](https://jobicy.com/talent/authorization.md)[AWS](https://jobicy.com/talent/aws.md)[CI CD](https://jobicy.com/talent/ci-cd.md)[Code Review](https://jobicy.com/talent/code-review.md)[Database Design](https://jobicy.com/talent/database-design.md)[Docker](https://jobicy.com/talent/docker.md)[DynamoDB](https://jobicy.com/talent/dynamodb.md)[GraphQL](https://jobicy.com/talent/graphql.md)[JavaScript](https://jobicy.com/talent/javascript.md)[Jest](https://jobicy.com/talent/jest.md)[Laravel](https://jobicy.com/talent/laravel.md)[Microservices](https://jobicy.com/talent/microservices.md)[NestJS](https://jobicy.com/talent/nestjs.md)[Next.js](https://jobicy.com/talent/next-js.md)[NoSQL](https://jobicy.com/talent/nosql.md)[Observability](https://jobicy.com/talent/observability.md)[Performance Optimization](https://jobicy.com/talent/performance-optimization.md)[PHP](https://jobicy.com/talent/php.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Prisma](https://jobicy.com/talent/prisma.md)[Query Optimization](https://jobicy.com/talent/query-optimization.md)[React](https://jobicy.com/talent/react.md)[Rego](https://jobicy.com/talent/rego.md)[REST APIs](https://jobicy.com/talent/rest-apis.md)[Serverless](https://jobicy.com/talent/serverless.md)[SQL](https://jobicy.com/talent/sql.md)[Technical Documentation](https://jobicy.com/talent/technical-documentation.md)[TypeScript](https://jobicy.com/talent/typescript.md)[Vue.Js](https://jobicy.com/talent/vue-js.md) ## Tech stack & tools Working toolkit ### Analytics [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/grafana/grafana-original.svg) Grafana](https://jobicy.com/talent?tool=grafana.md) ### Data Stores [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/dynamodb/dynamodb-original.svg) Amazon DynamoDB](https://jobicy.com/talent?tool=dynamodb.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/postgresql/postgresql-original.svg) PostgreSQL](https://jobicy.com/talent?tool=postgresql.md) ### Development [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/docker/docker-original.svg) Docker](https://jobicy.com/talent?tool=docker.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/jest/jest-original.svg) Jest](https://jobicy.com/talent?tool=jest.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/prisma/prisma-original.svg) Prisma](https://jobicy.com/talent?tool=prisma.md) ### Languages & Frameworks [![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/angular/angular-original.svg) Angular](https://jobicy.com/talent?tool=angular.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/graphql/graphql-original.svg) GraphQL](https://jobicy.com/talent?tool=graphql.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/laravel/laravel-original.svg) Laravel](https://jobicy.com/talent?tool=laravel.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/nestjs/nestjs-original.svg) NestJS](https://jobicy.com/talent?tool=nestjs.md)[![Image](https://cdn.jsdelivr.net/gh/devicons/devicon@master/icons/react/react-original.svg) React](https://jobicy.com/talent?tool=react.md) ## Experience Career history ### Software Engineer · Predium GmbH Jan 2025 – PresentI 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 Jun 2021 – Dec 2024I 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) Jul 2019 – Jun 2021I 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) Sep 2017 – Jun 20225-year National Engineering Diploma, Computer Science Engineering I completed a five-year engineering diploma in Computer Science Engineering. This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.