Fullstack AI Harness Engineer (Python/React)

4 538 - 6 464 USDNet per month - B2B
Python

Fullstack AI Harness Engineer (Python/React)

Python
Kraków, Kraków +2 Locations

Anitech Solutions

Full-time
B2B
Senior
Remote
4 538 - 6 464 USDNet per month - B2B

Job description

Role Description

We're looking for a Full Stack Engineer!

Anitech Solutions Ltd is a dynamic IT services provider delivering innovative and unique AI technology solutions to businesses across multiple sectors. Alongside our core IT services, we are proud to offer tapybl, our flagship education-focused software product designed to enhance learning and engagement.

We are looking for a highly capable Full Stack Engineer with a strong background in harness engineering. In this role, you will move fluidly between building user-facing features and creating the tooling, automation, and orchestration layers required to run complex systems reliably at scale.

Responsibilities

  • Build and maintain full stack applications using Python on the backend and React on the frontend.

  • Design and implement APIs, services, and orchestration layers for product workflows and internal tools.

  • Develop harnesses for testing, simulation, validation, execution, and monitoring of complex workflows, agents, or integrations.

  • Create reusable frameworks for workflow execution, automated test runs, sandboxed environments, synthetic data generation, scenario replay, regression validation.

  • Build developer-facing tools to improve engineering velocity, quality, and repeatability.

  • Integrate external services, APIs, and third-party tools into internal platforms.

  • Implement logging, tracing, observability, and error-handling across systems.

  • Collaborate with product, design, and platform stakeholders to turn business needs into scalable technical solutions.

  • Help define engineering standards for reliability, maintainability, and deployment readiness.


Required Qualifications

  • Strong hands-on experience building production systems with Python and modern frontend apps with React and/or Angular.

  • Experience building tooling for testing, validation, simulation, automation, or execution environments.

  • Solid understanding of software design, REST APIs, async service architectures, and databases (PostgreSQL/MySQL).

  • Comfortable working across both application code and engineering infrastructure (CI/CD pipelines, Git-based workflows).

  • Ability to move fast and make smart engineering tradeoffs in an autonomous environment.


Preferred Qualifications

  • Experience with workflow orchestration, event-driven architectures, or agent-based (AI/LLM) systems.

  • Familiarity with Docker and cloud infrastructure.

  • Background in building internal platforms, developer productivity tools, or QA frameworks.

What Success Looks Like

  • You can ship polished frontend and backend features end-to-end.

  • You can build robust harnesses that make systems easier to test, measure, debug, and scale.

  • You improve both product delivery and engineering leverage.

  • You help the team move faster by making complex workflows repeatable and reliable.

Working conditions
Fully-remote
B2B

Tech stack

    English

    B2

    Python

    advanced

    React

    advanced

    Docker

    advanced

    Cloud

    advanced

    REST API

    advanced

    CI/CD

    advanced

    Git

    advanced

    PostgreSQL

    advanced

    LLM

    regular

    AI harnessing

    regular

Office location

Fullstack AI Harness Engineer (Python/React)

4 538 - 6 464 USDNet per month - B2B
Summary of the offer

Fullstack AI Harness Engineer (Python/React)

Kraków, Kraków
Anitech Solutions
4 538 - 6 464 USDNet per month - B2B
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