04/09/2026 updated

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100 % available

Senior Scala Backend Engineer with AI

Oława, Poland
Only remote
Msc in Computer Science
Oława, Poland
Only remote
Msc in Computer Science

Profile attachments

seweryn_hejnowicz_scala_dev_cv_2026.pdf

Akka (Toolkit)Extract Transform Load (ETL)NoSQLAWS CLISQL DatabasesData StreamingApache SparkDistributed CacheEvent Driven ArchitectureMicroservices
Scala Backend Development
Expertise in Scala programming with 20+ years of JVM ecosystem experience, specializing in distributed systems, event-driven architectures, ETL and high-throughput data processing

AI and Machine Learning Integration
Implementation of AI solutions including Intellij AI to boost productivity in backend systems and data processing pipelines

Cloud and DevOps Architecture
Proficiency in AWS, Kubernetes, Docker, CI/CD with GitLab for scalable cloud-native systems and microservices deployment

Functional Programming
Advanced knowledge in functional programming paradigms using ZIO, Cats Effect for robust and maintainable code

Stream Processing
Expertise in real-time data processing using Kafka, Flink, Spark for building scalable streaming applications

Database Technologies
Experience with various database systems including Cassandra, MongoDB, RDS, NoSQL for data storage and retrieval

Microservices Architecture
Design and implementation of microservices, event-driven systems, and distributed systems architecture

Java Development
Strong background in Java programming with frameworks like Spring, Hibernate for enterprise applications

Languages

EnglishFluentPolishNative speaker

Project history

Senior Scala Developer

ICEO (BeOne)
Development of backend systems for a neo-bank platform using Scala 3, ZIO, Akka, PostgreSQL, and AI integration

Senior Scala Developer

Shell Recharge (NewMotion)
Backend systems for e-mobility platform, building stream processing pipelines and microservices using AWS Kinesis Analytics

Senior Scala Developer

Qomplx
Data ingestion and processing platform development with distributed data processing capabilities

Senior Scala Developer

Sgrouples (MeWe)
Backend development for privacy-focused social network at scale with 500k active users and 20M total users

Senior Scala Developer

EPAM (UBS Project)
High-scale data ingestion pipelines development with distributed data systems and microservices architecture

Senior Scala Developer

Huuuge Games
Distributed gaming platform backend development with microservices for multiplayer gaming platform

Consultant (Java/Scala)

Infusion Development
Building complex generic ETL platforms and data service layers for financial institutions including Credit Suisse, Wells Fargo

Java Developer

SMT Software
Web application development for banking and insurance sector with Java technologies

Java Developer

Capgemini Poland
Projects in Cordys technology with JavaScript and Java programming for business process modeling

Java Developer

Siemens Sp. z o. o.
Projects for polish public administration with Java EE and business logic implementation

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