Senior Python Engineer (Embedded project)

N-iX is seeking an experienced Backend Developer / Test Developer with strong Python skills to join their team in Lviv, Ukraine. You will contribute to the development of a common web-based project layer for roadside measurement systems, focusing on a reusable HMI and API architecture. Apply now to join a global technology partner working with Fortune 500 companies.

Looking for a Senior Python Engineer (Embedded project) at N-iX in Lviv, Lviv, Ukraine? This role focuses on the day-to-day work of a Senior Python Engineer (Embedded project).

We are looking for an experienced Backend Developer / Test Developer with strong Python skills to join the team and contribute to the development of a common web-based project layer for roadside measurement systems. The goal of the stream is to develop a reusable HMI and API arch

Company Overview

N-iX is a global technology partner for Pragmatic AI Software Engineering, with over 2,400 engineers across Europe, the Americas, and APAC. They work with Fortune 500 companies and enterprise technology leaders in finance, manufacturing, supply chain, and retail, building and measuring software that runs in production for over two decades. Their services include software engineering, AI consulting, cloud migration, data platform engineering, application modernization, and cybersecurity.

Quick Details

• Job Type: Full-time
• Experience: Mid-Senior level

Key Responsibilities

• Develop and maintain backend modules, utilities, and automated testing solutions using Python.
• Develop and maintain automated API and integration test suites covering application-layer endpoints.
• Test and validate GraphQL and RESTful/gRPC APIs, including schemas, queries, mutations, subscriptions, and service interactions.
• Verify end-to-end data flow from HMI user interactions through the API Gateway / Service Layer to ROS2 services.
• Validate API contracts, data structures, and schema consistency across system components.
• Develop integration, regression, and contract tests to ensure reliable communication between HMI and backend services.
• Integrate automated tests into CI/CD pipelines, working closely with DevOps and development teams.
• Perform root-cause analysis of system failures at the protocol, logging, and container levels.
• Work with embedded systems and target hardware in client office/lab environments.
• Investigate communication and integration issues involving ROS middleware, embedded systems, and roadside hardware.
• Work closely with Lead Frontend Developers to ensure reliable integration between the web-based HMI and backend services.
• Collaborate with DevOps to integrate API sanity checks, regression testing, and automated validation into Jenkins / GitLab CI pipelines.
• Support the development of a modular architecture that can be reused across multiple measurement systems with minimal adaptations.
• Contribute to troubleshooting and continuous improvement of the overall HMI/API solution.

Requirements

• Strong professional experience with Python.
• Experience developing backend modules, utilities, and automation frameworks.
• Good understanding of backend application architecture and service-based systems.
• Strong experience with GraphQL (Schemas, Queries, Mutations, Subscriptions).
• Experience with RESTful and/or gRPC APIs.
• Understanding of API contracts, data structures, and service-to-service communication.
• Strong experience with PyTest.
• Experience developing integration and API tests.
• Experience with contract testing and end-to-end testing.
• Experience integrating automated tests into CI/CD pipelines.
• Practical experience with GitLab CI and/or Jenkins.
• Working knowledge of ROS / Robot Operating System and middleware protocols.
• Good understanding of Linux, including shell scripting and system troubleshooting.
• Experience working with Docker containers.
• Ability to troubleshoot issues across multiple system layers.
• Ability to understand the system holistically from end to end.
• Ability to analyze dependencies and data flows across different application layers.
• Understanding of modular and reusable software architectures.

Benefits

• Flexible working format - remote, office-based or flexible.
• A competitive salary and good compensation package.
• Personalized career growth.
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more).
• Active tech communities with regular knowledge sharing.
• Education reimbursement.
• Memorable anniversary presents.
• Corporate events and team buildings.
• Other location-specific benefits.