Lead Integration Engineer

Optiveum; Warszawa; Híbrido; PLN 230.000 - 328.000; Jornada completa

Descripción de la vacante

Optiveum is seeking a Lead Integration Engineer in Warsaw, Poland, offering a hybrid, full-time role with a strong emphasis on API-first integration leadership. You will design scalable integration architectures, drive event-driven patterns with Kafka, and lead platform initiatives using Terraform and AKS, while shaping governance and standards across R&D systems.

The role requires deep experience in Python, REST APIs, and distributed systems, with English proficiency and a based-in-Poland

Formación

• 15+ years of software engineering experience.
• Educational background in Computer Science, Software Development or Engineering.
• Fluent English.
• Based in Poland.
• Proficient in Python / FastAPI.
• Experience with REST APIs and microservices.
• Experience with Kafka and event-driven architectures.
• Experience with Kubernetes (Azure Kubernetes Service).
• Infra as Code using Terraform.
• Azure Platform Services experience.
• CI/CD with GitHub Actions.
• Distributed systems design.
• SDLC best practices.

Responsabilidades

• Design and lead API-first architectures and integration patterns.
• Build reusable integration capabilities and governance for contracts and schemas.
• Drive platform engineering: IaC (Terraform), AKS, CI/CD, observability and deployment automation.
• Mentor engineers and steer technology modernization and roadmap execution.
• Ensure alignment with security and enterprise standards.

Conocimientos

Python / FastAPI

REST APIs

Kafka

Kubernetes

Terraform

Azure Kubernetes Service

GitHub Actions

Distributed systems

English

Poland based

Educación

Computer Science / Software Engineering degree

Herramientas

Databricks

Databricks Apps

Lakebase

Azure Platform Services

API Management

Delta Tables

Delta Sharing

Apache Flink

Data Mesh concepts

Descripción del empleo

Lead Integration Engineer

About the Offer

We are currently looking for a Lead Integration Engineer to join the central integration team of our global client, a pharmaceutical company. For this role, Optiveum is the recruitment and contracting party, which means you will sign the cooperation agreement directly with us.

Are you an experienced Python Backend Engineer looking for the right place to build integrations that matter? You will help modernise how Research and Development systems exchange data and support scientific work across the organisation, driving the work on a modern integration layer for R&D systems. Working closely with architects, technical and business stakeholders, you will create scalable, secure and maintainable integration solutions. The role offers significant ownership and the opportunity to shape architecture, integration patterns, engineering practices and technology direction.

Key Details:

• Rate: up to 46 EUR/h (B2B)

• Work Model: Hybrid (office presence frequency to be agreed with the client during interviews), full-time (40h/week)

• Location: Warsaw, Poland

Responsibilities:

Integration & API Leadership

• Design and implement API-first architectures

• Build reusable integration capabilities

• Drive standardisation of API contracts, schemas and governance

Event-Driven Architecture

• Lead adoption of event-based integrations using Kafka

• Define event standards and integration patterns

Platform Engineering

• Implement Infrastructure as Code using Terraform

• Build cloud-native services running on Azure Kubernetes Service

• Define CI/CD standards using GitHub Actions

• Improve observability, monitoring and deployment automation

Architecture & Technical Governance

• Participate in architecture and design reviews

• Mentor engineers and establish engineering best practices

• Drive technology modernisation and technical roadmap execution

• Ensure alignment with enterprise standards, security and compliance requirements

Requirements:

• 15+ years of experience in software engineering

• Educational background in Computer Science, Software Development or Engineering

• Python / FastAPI

• Databricks / Databricks Apps / Lakebase

• REST APIs and microservices

• Kafka and Event-Driven Architecture

• Kubernetes (Azure Kubernetes Service)

• Terraform / Infrastructure as Code

• Azure Platform Services

• GitHub Actions and CI/CD pipelines

• Distributed systems design

• SDLC best practices

• Fluent English

• Based in Poland

Nice to have:

• API Management

• Databricks Zerobus / Delta Tables / Delta Sharing

• Event Sourcing

• Apache Flink

• Data Mesh concepts