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SumUp logo

SumUp

sumup.com
sumup.com • Warsaw
Warsaw
Actively hiring
Financial Services
POS Systems
Payments
View 4 jobs
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Overview
News
Technologies
Salaries
Products
People
Growth
Jobs
Financials

Overview

Millions of small businesses use SumUp for affordable and easy to use mobile payment solutions. Shop our inventory of POS systems or get a demo today.

Technologies

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Tech DNA
Kotlin
Java
Jetpack Compose
Kotlin Multiplatform
Spring Boot
PostgreSQL
AWS
Honeycomb
AI/ML
PostgreSQL
AWS
Kubernetes
CI/CD
Docker
GitHub Actions
Grafana
Honeycomb
GitHub
Mobile
Kotlin
Java
Kotlin Coroutines
Jetpack Compose
Kotlin Multiplatform
MVI
MVVM
Reactive Programming
Other
Apache Kafka
gRPC
Spring Boot
Stack modernity Cutting-edge
75/100
How modern this stack is, based on technology relevance, AI adoption and the share of legacy tools.
In-demand technologies
Kotlin 4 jobs Required
$95k -33% vs market
Java 2 jobs Required
$95k -41% vs market
PostgreSQL 2 jobs Required
$95k -35% vs market
AWS 2 jobs Required
$95k -49% vs market
Kubernetes 2 jobs Required
$95k -47% vs market
Apache Kafka 2 jobs Required
$95k -37% vs market
Jetpack Compose 2 jobs Required
$80k -51% vs market
MVI 2 jobs Required
$80k -16% vs market
Salary medians are calculated from this company's open jobs and compared with the market.
Industry adoption
CI/CD
24%
AWS
22%
Kubernetes
19%
PostgreSQL
17%
Docker
17%
Java
16%
Share of companies in the same industry that use each technology.
Stack changes
GitHub Aug 2026
Technologies recently added to or removed from this company's stack - a signal of tech migrations and new initiatives.
Similar stack
Jobgether 19 shared technologies Motorola Solutions 19 shared technologies Emagine 19 shared technologies B3Group 17 shared technologies Banco Santander 17 shared technologies IDT Corporation 17 shared technologies

Salary insights

Compensation ranges based on this company's open jobs
Median
$95k
Typical range
$64k – $95k
Open positions
4
4 Jobs
Junior 25%
Senior 75%
Level Jobs Median Typical range
Junior 1 $64k $64k
Senior 3 $95k $95k
Highest paying role Senior Backend Engineer - Fiscalization $95k
Normalized to USD per year

Growth

Hiring Momentum
48/100
Stable
Open positions
4
0 opened / 0 closed in 30 days
Hiring Dynamics +100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
50% ▼
Mobile
50% ▲

Jobs

$37k – $65k per year • In office • Full-Time • 2+ years exp • Warsaw
Kotlin
Kotlin Coroutines
Mobile
Jetpack Compose
Kotlin Multiplatform
MVI
MVVM
Reactive Programming
Apply
$61k – $95k per year • In office • Full-Time • 2+ years exp • Warsaw
Kotlin
Kotlin Coroutines
Mobile
Jetpack Compose
Kotlin Multiplatform
MVI
MVVM
Reactive Programming
Apply
$61k – $95k per year • Equity • In office • Full-Time • 5+ years exp • Warsaw
Java
Kotlin
Spring Boot
Databases
Apache Kafka
PostgreSQL
DevOps
AWS
CI/CD
Docker
GitHub Actions
Grafana
gRPC
Honeycomb
Kubernetes
GitHub
Apply
$61k – $95k per year • In office • Full-Time • 5+ years exp • Warsaw
Java
Kotlin
Apache Kafka
PostgreSQL
DevOps
AWS
Kubernetes
Apply