Senior Streaming Data Engineer

InnoTech; Porto; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Mental health support

25 days vacation including birthdays

Team events and company parties

Sustainability and social initiatives

Job summary

InnoTech in Porto seeks a Senior Streaming Data Engineer to design and deliver real-time data products, from ingestion to APIs. You will build scalable pipelines with Apache Flink and Kafka, and develop REST APIs and microservices.

Requirements: 7+ years in data engineering, strong Flink/Kafka, AWS services, CI/CD, observability tools, fluent English, and EU work eligibility. Join a growth-focused team in a people-first environment.

Qualifications

• 7+ years in data engineering, real-time data products in production.
• Strong experience with Flink and Kafka, streaming architectures.
• REST APIs, OpenAPI specs, microservices; AWS services (MSK, Kinesis, Lambda, S3, ECS/EKS)
• CI/CD, automated testing, monitoring and observability tools (CloudWatch, OpenTelemetry, Prometheus, Grafana)
• Fluent English required; EU work permit or CPLP nationality.

Responsibilities

• Design end-to-end real-time data products from ingestion to consumer-facing APIs.
• Build and operate scalable streaming and batch pipelines using Flink and Kafka.
• Develop APIs, microservices, and streaming interfaces for data access.
• Ensure production readiness with data quality, observability and performance improvements.
• Lead engineering discussions, set standards, and mentor teammates.

Skills

Apache Flink

Apache Kafka

REST APIs

OpenAPI

Microservices

AWS services (MSK, Kinesis, Lambda, S3

CI/CD

Observability tools (CloudWatch, OpenC

Fluent English

Education

BSc or MSc in Computer Science/Engineering/Information Technology

Tools

Apache Flink

Apache Kafka

OpenAPI

REST API

AWS (MSK, Kinesis, Lambda, S3, ECS/EKS, API Gateway)

CI/CD tooling

CloudWatch/OpenTelemetry/Prometheus/Grafana

Job description

A Company you will be happy to grow with!

At InnoTech, it´s all about connecting people with business through technology.

We truly care about you, your happiness, and your well-being. We look for passionate people who are eager to learn, evolve, and grow with us - because growth is in our DNA. This commitment has been consistently recognized: we are proud to be a Great Place to Work for five consecutive years, to be one of the Best IT Companies in Portugal, and to be recognized as a Best Workplace Wellbeing. We are also proud to hold ISO 27001 and ISO 9001 certifications, reinforcing our commitment to information security, quality, and continuous improvement. For us, sustainability is not just a buzzword. Integrity, social responsibility, and people-first values guide everything we do. Join our team of 180+ InnoTechers and bring your talent as a Senior Streaming Data Engineer.

Your Mission Will Be:

• Designing and delivering end-to-end real-time data products, from data ingestion and stream processing to consumer-facing APIs;
• Building and operating scalable, resilient streaming and batch pipelines using Apache Flink, Apache Kafka, and event-driven architectures;
• Developing APIs, microservices, and streaming interfaces to ensure reliable and secure access to data products;
• Ensuring production readiness through data quality controls, observability, performance optimisation, and continuous service improvement;
• Driving technical excellence by defining engineering standards, reviewing solutions, leading technical discussions, and mentoring team members.

You Will Need:

• At least 7 years of professional experience in Data Engineering, including proven experience delivering real-time data products in production environments;
• Strong hands-on experience with Apache Flink, Apache Kafka, streaming architectures, and schema management;
• Experience developing REST APIs, OpenAPI specifications, and microservices, alongside solid knowledge of AWS services such as MSK, Kinesis, Lambda, S3, ECS or EKS, and API Gateway;
• Knowledge of CI/CD practices, automated testing, monitoring, and observability tools such as CloudWatch, OpenTelemetry, Prometheus, and Grafana;
• Fluent English is mandatory;
• CPLP nationality or an EU work permit is required to facilitate employment.

Would Be Awesome If You Have:

• Experience implementing data governance practices, data models, validation processes, and quality controls across streaming and batch workloads;
• Familiarity with production operations, including SLA management, incident response, root-cause analysis, and performance optimisation;
• Knowledge of security practices, including OAuth2/OIDC, encryption, secrets management, and least-privilege access;
• Experience producing technical documentation, architecture designs, API specifications, and operational runbooks;
• BSc or MSc in Computer Science/Engineering, Information Technology, or related fields.

What we offer:

• Health-focused partnerships, including free mental health support;
• 25 days of vacation, including your birthday, Carnival, and a bridging day between Christmas and New Year;
• Half a vacation day on your children's birthday and a school supplies voucher;
• Petsitting partnerships and a pet bereavement day;
• Regular team buildings, four annual company parties, game nights, and social events;
• InnoSports initiatives (football, marathons, and more);
• Events focused on sustainability and social responsibility actions.

Are you convinced? Come see it for yourself.