Freelancer profile translated to English.

Description

With over 13 years of experience in the IT industry, I specialize in the design and implementation ofmicroservice-based backend systemsusingJavaand **Spring**, particularly in **cloud environments**.

For the past 5 years, I have beenleadingcross-functional teams in digital product development, taking responsibility for **technical architecture**, **resource planning**, **stakeholder management**, and the successful execution of projects.

Recently, I led a SaaS product from concept to market launch for a leading international provider of cloud communication (CPaaS).

I particularly enjoy guiding products and ideas through their entire lifecycle. This includes gathering requirements, designing the technical architecture, creating the product roadmap and breaking it down into actionable tasks, as well as actively participating in development.

Inteam leadership**, I place great importance on an open and inclusive atmosphere where every team member feels valued and can freely contribute their ideas. **My strengthlies in communicating technical complexity in an understandable way and motivating teams to develop innovative solutions.

A brief overview of my experience:

- API development (REST, gRPC, GraphQL) in Java Spring Boot, Scala, SQL

- Solution Architecture, Microservices, RESTFul API Design, IAM, OAuth, DDD, IT Architecture

- Transformative Leadership, Coaching, Psychological Safety

- Microsoft Azure, AWS, Terraform IaC, gitLab CI, Kubernetes, Docker, Grafana

You can book me as a **Solution Architect**, **Interim Tech Lead**, or **CTO**, or as a **technical product manager**. I am not afraid of technical details, nor stakeholder or customer meetings.

Industry field of expertise

Languages

German
Native or bilingual
English
Fluent
Swedish
Conversational

Workplace preferences

Can work on-site

Berlin (up to 50km), Hannover (up to 50km), Hamburg (up to 50km)

Deutsche Vermögensberatung AG
Lead Developer & Architect
BANKING AND INSURANCE
February 2024 - Today (2 years and 4 months)
Frankfurt am Main, Germany
Interim Lead Developer & Architect on a freelance basis for a program to redesign an internal legacy application into a new microservice environment. I took over the first team just before go-live and am currently ramping up teams 2 and 3.
Team 1: Accountable for technical quality and responsible for 7 developers (FE, BE, QA)
Team 1: Reduced bugs in team 1 by 80% within 10 weeks
Teams 2 and 3: Collaborating closely with line management, product managers and project managers for project- and program planning, staffing and requirements analysis
Interviewing stakeholders (tech & business) for requirements analysis and designing the target architecture
Optimizing team-internal and -overarching processes for the new service oriented landscape
Technologies: Kotlin, Spring Boot, Spring Batch, REST APIs, TypeScript, JavaScript, Angular, Docker, Kubernetes, Azure, MySQL, GitHub Actions
Kotlin Spring Spring Boot Spring Batch REST Kubernetes Microsoft Azure MySQL Requirements Analysis Software Architecture
Sinch AB
Tech Lead & Senior Software Engineer
SOFTWARE PUBLISHING
September 2021 - July 2023 (1 year and 11 months)
Malmö, Sweden
I set up a cross-functional team of 7 members from scratch (2 FE, 3 BE, 1 UX, 1 PM). The objective was todevelop and test a SaaS MVP incrementally with a strategic customerand roll it out to the entire customer base (150,000). This was achieved after one year.

My tasks included:
- Accountable for technical quality and responsible for the developers in the team
- Participated in the early business discovery and User-testing for new features with the Product Manager, UX Designer and customer(s)
- Led the technical solution design and requirements-analysis, -breakdown and -estimation
- Set-up and continuously improved the teams’ coding guidelines, ways of working, processes
- Coached each team member through one-to-ones, code reviews, retrospectives which led to a team culture of ownership and trust
- Spearheaded initiatives as the first team in the company and consulted other teams about them (e.g. Scrum and business discovery process)
- Conducted technical interviews for hiring new candidates

Technologies: Java, Kotlin, Spring Boot, gRPC, graphQL, REST APIs, Docker, Kubernetes, Istio, AWS RDS (MySQL), Kafka, Grafana, Prometheus, DataDog, Gitlab CI, JSON schemas
Software Architecture Java REST API gRPC GraphQL Team Leadership Digital Product Development UX Research Microservices MySQL
E.ON SE
Solution Architect and Tech Lead
ENERGY AND UTILITIES
May 2019 - July 2021 (2 years and 2 months)
215 79 Malmo, Sweden
Technical lead for a project to re-design and migrate the API integration platform (middleware for multiple applications) from on-prem to cloud

-Technical Lead for a team of 5 developers, driving the way of working, coding guidelines and unblocking developers in their daily work
- Lead the technical solution design and requirements-analysis, -breakdown and -estimation
- Drove the development of acanonical domain modelas foundation for newAPI designswhich increased the re-usability by eliminating redundant code (no. of APIs from 25 to 16)
- Designed and developedcloud infrastructure (terraform)and API core features (Java), as follows:
- Designed and implemented the authorization concept for customer-facing APIs, using attribute based access control andOAuthbest practices (Curity, Spring Security)
- Implemented, amongst others, a way to provision self-signed root- and client certificates (mTLS) to Azure services (APIM) and APIs using Azure KeyVault and terraform
- Designed acustom secure network architecturefor Azure API Management in collaboration with Microsoft experts in order to comply to the E.ON security standards (Firewalls, VNETs, subnets, NSGs)

Technologies: Java Spring Boot, Maven, Azure (App-service, API Management, KeyVault), OAuth, Docker, Terraform, Gitlab CI, Splunk, Postman
Domain Driven Design Software Architecture Cloud Migration IAM Curity OAuth2 Team Leadership Microsoft Azure Java Spring