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Backend Developer

in 53111, Bonn, Nordrhein-Westfalen, Deutschland
Unternehmen: kiresult
Vollzeit, Praktikum/Lehre position
Verfasst am 2026-01-15
Berufliche Spezialisierung:
  • Software Entwicklung
    Backend Entwicklung, DevOps Ingenieur, Cloud-Ingenieur - Software, Full Stack Entwickler
Stellenbeschreibung
Stellenbezeichnung: Backend Developer - Full-Time (all genders)

About us

At kiresult, we’re reshaping the procurement analytics landscape with our advanced SaaS solution, helping companies to unlock the power of data for smarter decision-making. Our platform transforms procurement data into valuable insights, providing companies with strategic advantages and cost-saving opportunities.

Tasks

Who We're Looking For

You're a backend engineer passionate about building robust, scalable systems that power data-driven applications. Python micro-services, Docker containers, Mongo

DB, and CI/CD pipelines are your daily toolkit. Here, your contributions matter and can influence enterprise customers directly —and if you want to grow into a full-stack role, you’ll have the chance to do so.

Role Overview

As a Backend Developer at kiresult, you'll be central to our development team—building and maintaining the services that power our procurement analytics platform. You'll own backend feature delivery end-to-end, from database schema design to REST API endpoints and background job orchestration.

Key Responsibilities

1. Feature Development

  • Build new API endpoints and background jobs using Python and FastAPI
  • Design and implement scalable data processing jobs (Celery, asyncio)
  • Develop features that power decisions on billions in procurement spend

2. Code Quality & Testing

  • Drive test-driven development with pytest and maintain healthy test coverage
  • Conduct peer code reviews and uphold internal coding standards
  • Write unit and integration tests that ensure service reliability

3. Performance & Reliability

  • Profile services, optimize Mongo

    DB queries, and implement caching strategies
  • Introduce async patterns and fine-tune database aggregation pipelines
  • Implement robust logging, monitoring, and alerting to ensure system health, uptime, and quick incident response

4. Dev Ops & Containerization

  • Define, build, and run Docker images and containers for development, testing, and production
  • Contribute to CI/CD pipelines (Git Hub Actions, Git Lab CI/CD)
  • Support infrastructure-as-code and container orchestration basics

5. Collaboration & Leadership

  • Engage actively in sprint planning, architecture sessions, and demos
  • Mentor junior engineers and working students; share knowledge through pair programming and internal talks.
  • Partner with frontend engineers and cross-functional teams to deliver complete features
Requirements

Must-Haves

  • At least 1+ years professional experience in backend or full-stack engineering
  • Strong proficiency in Python 3.x with production experience in at least three of:
    1. FastAPI / Flask
    2. Pydantic
    3. Celery or other async task queue
    4. asyncio
    5. pytest
  • Practical experience with MongoDB schema design, indexing, and aggregation pipelines
  • Solid understanding of Docker (Docker file authoring, image management, container orchestration basics)
  • Strong problem-solving skills and appetite for troubleshooting complex issues
  • Proven track record writing unit and integration tests and operating services in production
  • Excellent English communication skills (German a plus)

Nice-to-Haves

  • Experience with Kubernetes or similar orchestration platforms
  • Comfortable with Git-based workflows and familiarity with CI/CD tools (Git Hub Actions, Git Lab CI/CD)
  • Exposure to cloud services (AWS, GCP, Azure, OTC)
  • Basic frontend knowledge (React, Vue.js, Type Script) to better collaborate across teams
  • Ambition to become a Full-Stack developer
  • Experience mentoring junior engineers or working students
Benefits

Why Join Us?

  • Real Impact – Your code powers decisions on billions in procurement spend.
  • Ownership & Growth – Small, senior team where every engineer shape architecture and product direction.
  • Learning Culture – Personal development budget, conference tickets, and mentorship‑pairing.
  • Flexible Work – Remote‑first processes and core hours.

Ready to push the boundaries of procurement analytics?

Apply with your CV
, Git Hub/portfolio links
, and a short note on a project you’re proud of. We review every application personally and aim to reply within a week.

Join kiresult and build the technology that redefines how enterprises see their data!

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