TRCI-26-04346

Platform Engineer (Kafka/Strimzi & HiveMQ on AKS)

Contract Platform Engineer to build, operate, and continuously improve enterprise messaging/integration platforms used by multiple teams. The focus is platform-level administration and automation of multi-cluster/multi-region Apache Kafka (Strimzi on Kubernetes/AKS) and HiveMQ, including upgrades/patching with zero downtime, security (ACLs, SASL, mTLS, RBAC, OAuth/OIDC integration), observability (Prometheus/Grafana/Splunk/Fluent Bit), DR/replication, and Tier 3 troubleshooting (consumer lag, rebalances, network bottlenecks). You’ll also support developer self-service and CI/CD/IaC practices (GitHub Actions, ArgoCD, Helm, Terraform) and advise Java/Spring Boot teams on Kafka client best practices.

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Position summary

Location: Sweden
Workplace: On-site
Employment: Contract
Experience: Minimum 5 years and Maximum 10 years

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Role overview

Why This Role Matters.

Your Impact

Deliver Enterprise Value

Help organisations solve complex business problems through modern technology, consulting expertise and measurable outcomes.

Collaboration

Work Across Teams

Collaborate with consultants, architects, engineers and client stakeholders throughout the project lifecycle.

Growth

Learn Continuously

Gain exposure to enterprise technologies, certifications, mentoring and real-world project experience.

Career Path

Grow With Ubique

Build a long-term consulting career with opportunities to take on greater responsibility and leadership over time.

Responsibilities

What You'll Be Doing.

Every role at Ubique contributes directly to solving meaningful business challenges for our clients.

As a Platform Engineer within ICC, you are responsible for building, operating, and continuously improving integration and platform capabilities that are used by multiple development teams.

Design, deploy, and maintain multi-cluster, multi-region Apache Kafka environments managed by the Strimzi Operator or similar on Kubernetes, as well as enterprise HiveMQ MQTT brokers.

Drive the platform upgrade lifecycle (minor and major versions) for Kafka, Strimzi, and HiveMQ, coordinating platform patching cadences seamlessly to mitigate CVEs with zero application downtime.

Develop and maintain custom Kafka Connectors (Source/Sink) for seamless data movement between legacy systems and the cloud.

Formulate and implement scaling strategies, node affinity rules, topology spread constraints, and persistent volume management optimized for IOPS-intensive message workloads.

Manage Kafka broker partition layouts, topic compaction configurations, segment retention behaviors, and cluster-wide resource allocation.

Enforce data governance standards through the management of Schema Registries (Avro, Protobuf, JSON Schema).

Architect edge traffic routing to messaging clusters using advanced ingress layers, translating complex routing policies and managing edge capabilities like Envoy Gateway or custom proxies.

Enforce data governance boundaries by implementing Kafka ACLs, SASL authentication structures, and integrating API Managers for authentication intercept handles (e.g., managing OAuth/OIDC validation paths)

Build and maintain deep observability pipelines using Prometheus and Grafana, configuring custom dashboards to monitor critical broker KPIs

Formulate proactive alerting rules to catch cluster anomalies—such as KubeNodeNotReady, JVM memory degradation, disk capacity thresholds, or storage detached states—before they impact production workloads.

Perform Root Cause Analysis (RCA) for platform outages and implement automated guardrails to prevent recurrence.

Technology stack

Tools & Technologies.

The platforms and technologies you'll use to build modern, enterprise-grade solutions.

Apache Kafka

Required

Strimzi

Required

Kafka Connect

Required

KRaft

Required

HiveMQ

Required

MQTT

Required

Kubernetes

Required

AKS

Required

Azure Kubernetes Service

Required

Java

Required

Spring Boot

Required

PostgreSQL

Required

Linux

Required

GitHub Actions

Required

Jenkins

Required

ArgoCD

Required

Helm

Required

Terraform

Required

Prometheus

Required

Grafana

Required

Requirements

Skills & Experience.

We value curiosity, collaboration and continuous learning. If you don't meet every requirement but believe you can make an impact, we'd still love to hear from you.

Essential

Required Qualifications

Apache Kafka (platform operations: clusters, performance, security)

Strimzi Operator (or similar) on Kubernetes

Kafka Connect API; building/maintaining custom source/sink connectors

KRaft (Kafka without ZooKeeper)

HiveMQ (enterprise MQTT broker) administration

Azure Kubernetes Service (AKS)

Kubernetes operations (multi-cluster/multi-region, scheduling/affinity, PV/storage)

Java

Spring Boot

PostgreSQL

Linux

CI/CD (GitHub Actions and/or Jenkins)

ArgoCD

Helm

Infrastructure as Code (Terraform or equivalent)

Observability: Prometheus and Grafana

Logging/telemetry: Splunk; Fluent Bit or OpenTelemetry

Kafka security: ACLs, SASL (incl. SCRAM), SSL/mTLS, RBAC

Schema Registry governance (Avro/Protobuf/JSON Schema)

Troubleshooting Kafka issues (consumer lag, rebalance loops, network bottlenecks) and RCA

Preferred

Nice to Have

API Management (APIM) platforms

Cloud experience beyond AKS (Azure/AWS/Google Cloud)

Cloud cost optimization

Experience in large enterprise integration departments

Swedish language

What you'll gain

More Than Just A Job.

We're committed to helping every team member grow professionally, personally and technically while working on meaningful projects.

Global Exposure

Collaborate with international clients and multicultural teams on enterprise programmes.

Continuous Learning

Expand your expertise through mentoring, certifications and hands-on project experience.

Career Growth

Take ownership, develop leadership skills and grow your consulting career over time.

Flexible Working

Hybrid and remote collaboration designed around trust and delivering exceptional outcomes.

People First

Join a supportive culture where collaboration, respect and long-term relationships come first.

Enterprise Projects

Work on meaningful technology initiatives for leading organisations across industries.

Apply

Apply for Platform Engineer (Kafka/Strimzi & HiveMQ on AKS)

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