29.10.2026 aktualisiert

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Streaming & Distributed Systems Engineer | Kafka · Flink · Kubernetes | LLM & Agentic Systems

Puchheim, Deutschland
Puchheim +25 km
Master's degree in informatics
Puchheim, Deutschland
Puchheim +25 km
Master's degree in informatics

Profilanlagen

kanstantsin_kamkou.pdf

Über mich

Senior Engineer · Tech Lead · Architect (20+ J. Erfahrung). Echtzeit-Streaming, verteilte Systeme & KI-Integration: Java, Kafka, Flink, K8s, Python, SQL/NoSQL, LLM/RAG (AWS/Azure/GCP). Regulierte Hochlast-Systeme (Automotive, Banking, B2B). CKAD · CCDAK · OCP. Raum München/Remote, EN/DE (B2).

Skills

OAuth 2.0RAGGitHub ActionsOpenTelemetryLLMOpenAIHelmLangChainJavaJavaScriptAmazon Web ServicesMicrosoft AzureGoogle BigQueryElasticsearchApache HadoopHazelcastSpring FrameworkPythonPostgreSQLMachine LearningMongoDBMySQLNGINXNode.jsRabbitMQRedisOpenid ConnectDropwizardAnsiblePrometheusJson Web TokenTypeScriptOpenapiGoogle CloudApache CassandraIstioFlaskGrafanaPrompt EngineeringApache SparkSpring BootGitLabGitFastAPIKotlinKubernetesApache FlinkApache KafkaTerraformgRPCDockerJenkinsConfluent
LANGUAGES & FRAMEWORKS
Java (Oracle Certified Professional), Dropwizard, Spring, Spring Boot, Micronaut, Quarkus, Reactor, Mutiny
Python, Flask, FastAPI
JavaScript, TypeScript, Node.js, RxJS
Shell Scripting (Bash, POSIX), AWK

DATA & STREAMING
Apache Kafka (Confluent Certified Developer, CCDAK), Kafka Streams, Kafka Connect
Confluent Schema Registry, Avro, Protobuf, Schema Evolution
Apache Flink, Apache Spark, Google BigQuery
PostgreSQL, Oracle, MySQL (Oracle Certified Developer), MongoDB, Cassandra, DynamoDB, Couchbase

AI & INTELLIGENT SYSTEMS INTEGRATION
LLM Integration (APIs, Backend), Agentic Workflows (Tool Use, MCP, Agent Skills)
AI Coding Agents (Claude Code, OpenCode), Multi-Agent Orchestration
RAG (Architecture, Retrieval Workflows), Embeddings, Semantic Search
Prompt & Context Engineering, AI-Powered Backend Services (REST/gRPC)

APIs & INTEGRATION
REST, gRPC
OpenAPI, JSON:API, API Blueprint

CLOUD, DEVOPS & PLATFORM
Kubernetes (Certified Application Developer, CKAD), Docker, Helm, Ansible
Terraform (IaC), CI/CD (GitHub Actions, Jenkins, GitLab CI)
AWS (EMR, ECS, Lambda, S3, CloudWatch, CodeBuild), Azure (Blob, ADLS Gen2), GCP
Traefik, Istio, Nginx

SEARCH & ANALYTICS
Elasticsearch, OpenSearch, Solr, Apache Lucene, Sphinx
Apache Druid, Google BigQuery
Redis/Valkey, RocksDB, Hazelcast

OBSERVABILITY & OPERATIONS
Prometheus, Grafana, OpenTelemetry, Logstash, Kibana, Graylog
Monitoring, Alerting, Incident Response (L3)

SECURITY & IDENTITY
OAuth2, OpenID Connect, JWT, Azure Active Directory, GDPR

LEGACY & MIGRATION
PHP & Zend Framework (Zend Certified Engineer), AngularJS, Angular, Ember.js, Vue.js, ExtJS, RxJava
SOAP/WSDL/XML-RPC, Hadoop ecosystem (YARN, HDFS, Flume, Drill)

ENGINEERING PRACTICES
System Architecture, High-Load Distributed Systems, Microservices
Tech Leadership, Clean Architecture, Code Reviews, Mentoring

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2020

Sprachen

DeutschgutEnglischverhandlungssicherRussischMuttersprache

Projekthistorie

Senior Data Transformation Consultant

NDA

Internet und Informationstechnologie

5000-10.000 Mitarbeiter

I help data-heavy organisations cut the cost of AI-heavy data pipelines by tuning and moving high-volume transformation into Apache Flink and Flink SQL, so streaming does the heavy lifting and the AI layer only handles what genuinely needs it - cutting infrastructure spend and rebalancing production costs. Pipelines perform the transformation and feed RAG systems for LLMs directly.

Freelance Data & Software Engineer (Contract)

NDA / Diconium
Development, stabilization, and enhancement of main streaming data pipelines for a leading Global Mobility Brand:
- Rescued and rebuilt the unstable main pipeline after a year of development, delivering a stable version just before production (processing GBps).
- Delivered full-cycle implementation of cold storage, large message handling, and package merging features in the main pipeline, enabling seamless migration of key features to other pipelines.
- Implemented end-to-end large message streaming ingestion (up to 64 MB) at the API level.
- Boosted DevOps flexibility by decoupling Flink configurations from the Kubernetes Flink Operator, adding DFS support, and defining production upgrade procedures for Flink.
- Major Java backend and REST API changes, including validation layers and integration endpoints, to support new streaming and migration workflows.

Senior Software Engineer

Deutsche Bank / HAYS
Contributed to the «TradeFinder» financial portal by migrating data pipelines, scripts (python, matlab, sh), and web interfaces to newer versions, addressing security issues and supporting ongoing maintenance and improvements.

Senior Software Consultant

HSBC UK / Marionete
As a core team member, responsible for the design, implementation, and maintenance of microservices within HSBC's Payments Orchestration Layer framework, a key part of their high-value, high-volume payments system. The architecture used gRPC, Kafka, Kafka Streams, and Oracle in a resilient, lowlatency mesh optimized for high throughput in a secure, regulated environment. Also provided Level 3 (L3) support.

Senior Software Consultant

ING Deutschland / Lendico Deutschland GmbH
Led an integration segment of the «Working Capital» financial project, focusing on aligning the existing ING flow with Amazon loan programs. Performed initial business analysis, and actively participated in coding, contributing significantly to the improvement and maintenance of related microservices.

Senior Software Engineer

Philips Healthcare / TOMTEC Imaging Systems GmbH
Major migrations and enhancements of both backend and frontend legacy code for the medical application «TOMTEC-ARENA».

Lead Java Developer

ryd GmbH
- The architecture and implementation of ryd.pay, currently in use by Mercedes-Benz and BP, including white-label APIs, payment processing, low-level concurrent socket communication with fuel pumps, and traceability features.
- Developed the initial fleet management web application and a fuel station simulation web tool for business presentations and integration.
- The complete real-time infrastructure for GPS map matching and over-speeding utilizes Apache Flink, Flume, and Kafka.
- The complete Business Intelligence (BI) infrastructure and its interconnections.

Lead Software Engineer

Travian Games GmbH
Solutions department:
- Took over the existing backend/frontend "Mellon" implementation from an outsourcing team
- Led a successful backend refactoring phase for a three-year-old system
- Reorganized deployment and code-quality processes
- Introduced a Single Sign-On (SSO) web-framework, reducing integration time from a quarter to days
- Interconnections between Business Intelligence (BI) and the Single Sign-On (SSO) framework.

Contractor / Freelancer

Developed high-performance crawlers and data aggregation systems for CHIP Digital.
Built scalable messaging-based platforms using RabbitMQ and Node.js.
Modernized large legacy systems in media and e-commerce.
Contributed to ERP, analytics, and backend platforms across multiple international clients.

Employers: CHIP Digital, Bloopark Systems, Meetville, Technopark Corp., Brigade

Web-developer and dev-ops

IBA Group / FE IBA-Gomel
- Presented my own CMS, "S-Motion," at TIBO-2005, the largest exhibition in Belarus in the field of telecommunications, banking, and office technologies.
- Shell scripting on Linux for the detection of obsolete software on IBM servers.
- Developed various web services and websites for large manufacturers and the national bank.

Zertifikate

Certified Kubernetes Application Developer

The Linux Foundation

2026

Data Streaming Engineer - Apache Flink®

Confluent

2026

Confluent Certified Developer for Apache Kafka

Confluent

2024

Oracle Certified Professional Java SE 8 Programmer

Oracle

2019

Oracle Certified Professional, MySQL 5.6 Developer

Oracle

2015

Zend Framework Certified Engineer (ZFCE)

Zend Technologies

2011

Zend Certified Engineer (ZCE)

Zend Technologies

2011

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