Roland Walet

Roland Walet

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ABOUT ME
Java whiz with 7+ years of full-stack professional dev experience
Java whiz with 7+ years of full-stack professional dev experience

I've been leading engineering teams as a dev for about 4 years now. I love mentoring people and upskilling them, sharing my experience with them in as many ways as possible. Out of my current team of 5 (other) engineers, every single one of them has reached a promotion, partly due to my guidance.

I mostly work with Java Spring Boot apps, but have some experience with Python, C#, and I've done a fair bit of front end work using TypeScript for both Angular and React.

I'm a big believer in terse code - code that is succinct yet clear, and in making extensible, clear components that you can re-use as much as possible.

I've worked in a variety of environments, such as finance, transportation, and currently I work in the supply chain of a large retailer. I believe that any challenge can be overcome with the help of good code!

London (+01:00)
Joined April 2025
EXPERTISE
5 years experience
5 years experience
7 years experience
3 years experience

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EMPLOYMENTS
Lead Software Engineer
Holland & Barrett
2022-01-01-Present
Leading a team of 5 other engineers in the Supply Chain area, handling various products such as 3rd party integrations, lightning-fast AP...
Leading a team of 5 other engineers in the Supply Chain area, handling various products such as 3rd party integrations, lightning-fast APIs, event-driven architecture
Java
PostgreSQL
TypeScript
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Java
PostgreSQL
TypeScript
React
Spring Boot
Amazon RDS
DynamoDB
Apache Kafka
Spring webflux
AWS
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Java Developer
Resonate UK
2020-08-01-2022-01-01
Building a live view of all trains in the UK for Network Rail - with extremely tight requirements. Angular UI with reactive Java backend
Building a live view of all trains in the UK for Network Rail - with extremely tight requirements. Angular UI with reactive Java backend
Java
Angular
Redis
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Java
Angular
Redis
TypeScript
Spring Boot
DynamoDB
AWS Lambda
Spring webflux
AWS
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Software Engineer
Santander UK
2018-07-01-2020-08-01
My first professional job as a software engineer - working with Java 8, Spring Boot, Oracle & PostgreSQL databases, mentoring Junior devs...
My first professional job as a software engineer - working with Java 8, Spring Boot, Oracle & PostgreSQL databases, mentoring Junior devs, and doing a lot of DevOps too
Java
Angular
PostgreSQL
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Java
Angular
PostgreSQL
Jenkins
TypeScript
Spring Boot
Oracle SQL
DevOps
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