Senior Backend Engineer · Augsburg, Germany

Khaled Jallouli I design and build software systems where architecture, scalability, and product impact intersect.

Backend engineer and former technical lead. I work on distributed and multi-tenant platforms, event-driven architecture, and the product decisions they support.

Portrait of Khaled Jallouli smiling in a warm-lit office
now Senior Backend Engineer @ Makersite
5+ yrs
at PreciTaste, engineer to tech lead
3
products led technically
15
people in the cross-functional team
2
iOS products built end-to-end

01 · About

Architecture, grounded in product

I'm a Senior Backend Engineer at Makersite, where I work on large-scale backend systems and infrastructure. Before that I spent 5+ years at PreciTaste, growing from Software Engineer to Technical Lead and helping evolve AI-powered products used in production.

My work goes beyond backend implementation. I like knowing why a requirement exists before I design the solution. I also plan technical work around business priorities, and I work closely with Product, Design, QA and Customer teams to get systems that last into production.

Outside my main role I'm building FitBond and Keikoo, two iOS products where I own the product vision, architecture, backend and deployment pipelines end-to-end.

next → Product Architecture · Staff Engineering · systems with measurable business impact

  • Distributed & multi-tenant architecture

    Architecture decisions for systems that serve many customers from shared, isolated platforms.

  • APIs & event-driven platforms

    Scalable APIs, service integrations and Kafka streaming pipelines.

  • Product-aligned planning

    Technical roadmaps that balance business needs, team capacity and long-term health.

  • Cloud-native reliability

    Kubernetes, CI/CD, blue-green deploys, observability with Grafana, Prometheus and Sentry.

  • Cross-functional leadership

    Aligning Engineering, Product, Design, QA and Customer Success around one plan.

  • Mentoring & standards

    Code reviews, technical interviews, and engineering practices a team can share.

02 · Experience

Where I've built

  1. May 2026 — now Stuttgart, DE

    Senior Backend Engineer

    Makersite

    • Part of the AI team, integrating AI-powered services into the core platform, including RAG-based solutions and Chemical AI.
    • Work on complex data importers and learned the product's data flows in depth, so customer data is processed correctly and reliably.
    • Made importers faster by profiling Python code and fixing the bottlenecks it found.
    • Work with Customer Success and domain experts to match technical implementations to customer requirements.
    • Help investigate and resolve P1 production incidents.
    • Python
    • Flask
    • REST APIs
    • RAG
    • LLM services
    • Graph databases
    • Profiling
    • pytest
    • OpenCode
  2. Apr 2021 — May 2026 Munich, DE

    Senior Software Engineer / Technical Lead

    PreciTaste · AI-powered products used in production

    Monolith→Microservices
    Dedicated deploys→Multi-tenant
    Stateful→Stateless, replicated

    Architecture & platform

    • Led technical discussions and architecture decisions across three products with a cross-functional team of 15.
    • Led the shift from dedicated customer deployments to multi-tenant platforms with isolated databases. This included tenant isolation, deployment and caching strategies.
    • Redesigned services to be stateless so they could run as multiple replicas and workers.
    • Designed APIs and integrations across distributed services, and built event-driven workflows with Kafka and Faust.

    Delivery & reliability

    • Built and ran Python microservices (FastAPI, Django) on Kubernetes.
    • Defined deployment approaches: Docker, Podman, trunk-based development and blue-green deployments.
    • Monitored and debugged production with Grafana, Prometheus and Sentry.
    • Took part in security reviews, software audits and ISO 27001 processes.

    Leadership

    • Worked with Product, Customer Success and Design to understand the “why” behind requirements.
    • Planned releases and technical priorities around business needs, team capacity and long-term improvements.
    • Reviewed code, mentored engineers, ran technical interviews and encouraged knowledge sharing across teams.
    • Python
    • FastAPI
    • Django
    • Kubernetes
    • Kafka
    • Faust
    • MongoDB
    • Celery
    • Docker
    • Podman
    • Grafana
    • Prometheus
    • Sentry
    • JMeter
    • CI/CD
    • mypy
    • Scrum
  3. 2017 — 2021 DE · FR · TN · TR

    Earlier experience

    Master thesis, internships & tutoring
    • 2020 — 21
      Data Science Intern (Master Thesis) · KAMAG Transporttechnik, Ulm
      Optimized yard movements and generated transport orders automatically using constraint programming (IBM ILOG CPLEX), Python and Flask.
    • 2020 — 25
      Private Tutor · Superprof
      Taught mathematics, programming, data science and web development.
    • 2019
      Software Engineer Intern · CP Georges Renault, Nantes
      Built a server and web interface for configuring industrial tightening controllers (C++ Cutelyst, Vue.js, NGINX).
    • 2018
      Web Development Intern · Leads Generation, Concarneau
      Built a B2B events directory with Drupal, PHP and Twig.
    • 2017
      Web Development Intern · BR&T, Tunis
      Built a company website in WordPress.
    • 2017
      Web Development Intern · Arzen Systems, Ankara
      Built a learning management platform with PHP and MySQL.

03 · Building

FitBond & Keikoo

Two iOS products I'm building as Founder / Product Architect (pre-launch). I own them end-to-end: product vision, UX, architecture, backend and release pipeline.

FitBond

Fitness tracking · iOS

A fitness tracker with AI-supported workout recommendations and personalized experiences. It is designed so AI coaching and analytics can grow into it.

View on the App Store

Keikoo

Sports coaching & planning · iOS

A sports coaching and planning app. It shares FitBond's backend and deployment patterns and is built to extend to more sports.

View on the App Store
Shared platform
  1. iOS clientsSwift · DDD
  2. APIFastAPI · REST
  3. DataPostgreSQL
  4. AI layerCoaching · Recommendations
  5. CI/CDGitLab → Google Cloud
  6. ReleaseFastlane · TestFlight

Designed in Figma. Built with AI-assisted development (Claude Code, Codex) for fast prototyping and iteration.

04 · Toolkit

What I work with

  • Software Architecture
  • Distributed Systems
  • Microservices
  • Python
  • Product Development

Backend

Python · FastAPI · Django · Flask · Celery · REST & WebSocket APIs · Swagger / OpenAPI

Architecture

Distributed systems · Event-driven architecture · Microservices · Multi-tenant platforms · API design & system integration · DDD

Streaming & data

Apache Kafka · Faust · MongoDB · PostgreSQL · MySQL · Graph databases · RAG pipelines

Cloud & DevOps

Kubernetes · Docker · Podman · Google Cloud · GitLab CI/CD · Blue-green deploys · Nginx · Ansible · Linux

Reliability & quality

Grafana · Prometheus · Sentry · pytest · JMeter · mypy · Profiling · Integration & performance testing

Security & compliance

ISO 27001 · Security reviews · Software audits · Risk assessment

Also fluent in

Swift · JavaScript · C++ · Java · C# · R · Bash · Vue.js · Node.js

Ways of working

Trunk-based development · Scrum · Code review · Mentoring · Technical specs · AI-assisted development

05 · Education

Foundations

2019 — 2021

M.Sc. Information Systems

Technische Hochschule Ulm, Germany

Final grade 1.9 · Good

2017 — 2021

Master's in Software Engineering

National School of Engineering (ENIB), Brest, France

15.24 / 20 · Good

2016 — 2017

Academic Exchange, Computer Engineering

Middle East Technical University, Ankara, Turkey

3.54 / 4.00 · High Honor

2014 — 2017

B.Sc. Computer Science & Multimedia

Higher Institute of Multimedia Arts, Manouba, Tunisia

Ranked 1st in class

Languages
  • Arabic native
  • English fluent
  • French C1
  • German B1
  • Turkish A2

06 · Contact

Let's build something that matters.

I'm open to conversations about backend architecture, Staff and Product Architecture roles, and interesting product problems.