You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Malt Strategy
Gentian D.GD

Gentian D.

Senior Software Engineer | Python | Node.js | AWS

€275/day
Berlin, DE
8-15 years
Python
Node.js
Backend Service Development
Microservices Architecture
Amazon Web Services

Average response time: 1 hour

About Gentian

Experienced Senior Software Engineer specialized in building robust stream and batch processing ETL data pipelines for data extraction, reporting, BI solutions, and near real-time analytics. Proven track record of maintaining high-performance systems and driving efficiency. Bachelor's degree in Computer Science from the University of Prishtina "Hasan Prishtina".
Banking and Financial Services
Digital and IT Services
E-commerce
Software Publishing

  • Albanian

    Native or bilingual

  • English

    Fluent

  • German

    Basic

Remote only
Primarily works remotely

Experience

  • Klarna
    Senior Software Engineer - Card & Banking
    April 2022 - Today (4 years and 2 months)
    Berlin, Germany
    Klarna is a fintech company that provides a range of services primarily focused on simplifying the shopping and payment experience making it as smoooth and convenient as possible for both consumers and merchants.
    - Led the architectural design and implementation of a high-performance risk and fraud banking decisioning engine, handling tens of thousands of requests per second with an SLA/SLO adherence under 300/100 ms.
    - Designed and implemented an ETL data pipeline for banking deposits data, supporting regulatory reporting with 30M+ records spanning over the past 10 years.
    - Optimized Lakehouse architecture integration, transitioning from a queue based to a file-based approach, reducing data processing time from 24-48 hours to 1-2 hours, significantly improving overall efficiency, data quality, and reconciliation processes. Tech Stack:
    - Languages: TypeScript, Python, Java, SQL
    - Frameworks: AWS CDK, Node.js, NestJS, FastAPI
    - Cloud (AWS): Lambda, DynamoDB, S3, Glue, Athena, EventBridge, SNS, SQS, EC2, IAM, Redshift, RDS, Aurora, CloudFormation, Managed Flink Service, CloudWatch
    - Monitoring: Datadog, Splunk, Sentry, Prometheus
    - Tools: Docker, Kafka, Airflow, Jenkins, Bash, Git
  • Mobivate
    Senior Back-End Developer
    November 2021 - March 2022 (4 months)
    London, UK

    - Migrated legacy Python project from v2 to v3, transforming into a modern distributed system utilizing asynchronous architecture; resulting in a 50% reduction in server response time.
    - Led initiatives to refine data quality measures, resulting in 99.9% data accuracy rates; implemented rigorous validation checks that enhanced the reliability of business intelligence outputs.
    - Revamped back-end systems and APIs, adding monitoring, observability tools, introducing real-time performance tracking, reducing system downtime by 15% and increasing operational reliability. Tech Stack:
    - Languages: Python, JavaScript, SQL
    - Frameworks: FastAPI, Flask, Django
    - Databases: MySQL, MongoDB
    - Tools: Docker, Portainer, Redis, RabbitMQ, Kafka, Celery, SQLAlchemy, Bash, Git
  • StarLabs
    (Senior) Back-End Developer
    September 2020 - November 2021 (1 year and 2 months)
    Pristina District, Kosovo

    - Migrated a Django monolithic application into asynchronous FastAPI microservices, resulting in a 20% improvement in API response time.
    - Achieved 98% test coverage across seven different microservices by implementing automated testing frameworks and integration tests.
    - Supported system integration of diverse data sources and technologies used in the design, construction, testing, deployment, and operations of BI solutions.
    - Developed comprehensive platform for data extraction, visualization and analysis.
    - Worked together with UI/UX designers and product owners to conceptualize and build new features end-to-end. Tech Stack:
    - Languages: Python, SQL, PL/pgSQL
    - Frameworks: Django, FastAPI
    - Databases: PostgreSQL, MySQL
    - Tools: Airflow, Puppeteer/Pyppeteer, Docker, Kubernetes, Celery, SQLAlchemy, S3, dbt, Ansible, Bash, Git, Linux
Check out Gentian's experience

Recommendations

Be the first to recommend Gentian

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Signup to reveal

Education

  • Bachelor of Science in Computer Science
    University of Prishtina "Hasan Prishtina"
    2018
    The curriculum covered a comprehensive range of topics: Fundamentals of Programming, Algorithms and Data Structures, Computer Architecture, Operating Systems, Software Engineering, Web Programming, Computer Networks, Data Security, Distributed Systems, Data Mining, Internet Security, and Cloud Computing among others

Skill set

Software Architecture
CI/CD Management
Cloud Platforms and Infrastructure
Batch Processing
Web scraping
Django
FastAPI
Typescript
Data integration (ETL, ELT and data warehousing)

Categories