Job offers 10 277 offers

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Senior .Net Engineer
56 - 69 USD/h
56 - 69 USD/h
Caspian One
Wrocław
19d left
1-click Apply
Azure
.Net
Microservice Architecture
Azure
.Net
Microservice Architecture
1-click Apply
19d left
Product Architect
7 227 - 8 895 USD/month
7 227 - 8 895 USD/month
SPEEDNET
Gdańsk
17d left
Bash
WebSocket
Linux / Unix
Bash
WebSocket
Linux / Unix
17d left
Fullstack Software Engineer
3 058 - 4 170 USD/month
3 058 - 4 170 USD/month
Just Join IT
21d left
C#
ASP.NET
RabbitMQ
C#
ASP.NET
RabbitMQ
21d left
Java Developer - Trading Platform, Investment Bank
6 671 - 8 339 USD/month
6 671 - 8 339 USD/month
Caspian One
Kraków
19d left
1-click Apply
Apache Kafka
Java
Spring Boot
Apache Kafka
Java
Spring Boot
1-click Apply
19d left
Senior Frontend Developer - React, JavaScript, TypeScript (Financial Services)
8 339 - 11 119 USD/month
8 339 - 11 119 USD/month
Caspian One
Kraków
13d left
1-click Apply
TypeScript
React
JavaScript
TypeScript
React
JavaScript
1-click Apply
13d left
Snowflake Engineer / Architect
347 - 639 USD/day
347 - 639 USD/day
Upvanta sp. z o.o.
10d left
Cloud
ETL
Data
Cloud
ETL
Data
10d left
Tech Lead/Lead Data Engineer 0.5 FTE
334 - 375 USD/day
334 - 375 USD/day
RITS Professional Services
Warszawa
28d left
Snowflake
Python
AWS
Snowflake
Python
AWS
28d left
Data Scientist
278 - 334 USD/day
278 - 334 USD/day
RITS Professional Services
28d left
Machine Learning
Python
Data Science
Machine Learning
Python
Data Science
28d left
Korepetytor online - Math
822 - 940 USD/month
822 - 940 USD/month
KODLAND
26d left
math
Tutoring
Algorithms
math
Tutoring
Algorithms
26d left
Korepetytor online - Math
822 - 940 USD/month
822 - 940 USD/month
KODLAND
26d left
math
Tutoring
Algorithms
math
Tutoring
Algorithms
26d left
Senior Cloud AI Engineer - RAG Platform
42 - 49 USD/h
42 - 49 USD/h
RITS Professional Services
Warszawa
28d left
Python
Langchain
AWS
Python
Langchain
AWS
28d left
Senior DevOps Engineer (AdTech/VOD) – 100% zdalnie 🌎
36 - 47 USD/day
36 - 47 USD/day
Ness Solution
20d left
AWS
DevOps
Docker
AWS
DevOps
Docker
20d left
Senior Python (Web development) Engineer
7 634 USD/month
7 634 USD/month
Ciklum
18d left
Data Lake
Pydantic
Service Bus
Data Lake
Pydantic
Service Bus
18d left
Data Engineer
3 892 - 5 837 USD/month
3 892 - 5 837 USD/month
Bayer Sp. z o.o.
Warszawa
29d left
Python
ETL
Snowflake
Python
ETL
Snowflake
29d left
Product Lead, Product Foundations
16 123 - 17 095 USD/month
16 123 - 17 095 USD/month
monday.com
Warszawa
29d left
Product Management
Agile
Product Management
Agile
29d left
IT Platforms Director
9 729 - 11 397 USD/month
9 729 - 11 397 USD/month
Connectis
Warszawa
18d left
CRM
ERP
CRM
ERP
18d left
Data Engineer - Spark, Pyspark, Databricks (Financial Services)
8 339 - 11 119 USD/month
8 339 - 11 119 USD/month
Caspian One
Kraków
12d left
1-click Apply
Apache Spark
Cloud
PySpark
Apache Spark
Cloud
PySpark
1-click Apply
12d left
MID Full Stack Developer (Python + Django + React.js)
222 - 311 USD/day
222 - 311 USD/day
RITS Professional Services
Warszawa
28d left
Django
React Native
JavaScript
Django
React Native
JavaScript
28d left
FullStack Developer (Vue/Laravel)
4 003 - 5 782 USD/month
4 003 - 5 782 USD/month
Kyotu Technology
Wrocław
14d left
PHP
Pest
Vue
PHP
Pest
Vue
14d left
Fullstack Developer (React.JS / Vue.JS / .NET / PHP)
4 448 - 6 227 USD/month
4 448 - 6 227 USD/month
Kyotu Technology
Wrocław
14d left
.Net
PHP
Vue.js
.Net
PHP
Vue.js
14d left
ML Engineer / Data Scientist
6 906 - 8 287 USD/month
6 906 - 8 287 USD/month
emagine Polska
Warszawa
4d left
Python
scikit-learn
TensorFlow
Python
scikit-learn
TensorFlow
4d left
Database Reliability Engineer (OpenSearch)
11 675 - 16 679 USD/month
11 675 - 16 679 USD/month
monday.com
Warszawa
29d left
PostgreSQL
MySQL
OpenSearch
PostgreSQL
MySQL
OpenSearch
29d left
MLOps Engineer
389 - 445 USD/day
389 - 445 USD/day
RITS Professional Services
28d left
Machine Learning
DevOps
Cloud
Machine Learning
DevOps
Cloud
28d left
Data Engineer
306 - 345 USD/day
306 - 345 USD/day
RITS Professional Services
28d left
Data
SQL
Data
SQL
28d left
Sr ML Engineer (computer vision)
6 949 - 8 895 USD/month
6 949 - 8 895 USD/month
Harvey Nash Technology
Warszawa
24d left
1-click Apply
Machine Learning
Python
Computer Vision
Machine Learning
Python
Computer Vision
1-click Apply
24d left
Senior Java Developer
5 837 - 7 227 USD/month
5 837 - 7 227 USD/month
Locon Sp. z o.o.
Szczecin
25d left
Java
Spring Boot
PostgreSQL
Java
Spring Boot
PostgreSQL
25d left
Java Developer
4 448 - 5 837 USD/month
4 448 - 5 837 USD/month
Locon Sp. z o.o.
Szczecin
26d left
Java
Spring Boot
PostgreSQL
Java
Spring Boot
PostgreSQL
26d left
CEPH Administrator
25 - 31 USD/h
25 - 31 USD/h
ITLT
24d left
Ceph
Linux
Bash
Ceph
Linux
Bash
24d left
Senior Cloud Data Engineer
44 - 53 USD/h
44 - 53 USD/h
j-labs
Kraków
21d left
1-click Apply
Python
PostgreSQL
XGBoost
Python
PostgreSQL
XGBoost
1-click Apply
21d left
Java Software Engineer
3 058 - 4 726 USD/month
3 058 - 4 726 USD/month
Motorola Solutions
Kraków
15d left
1-click Apply
REST API
Java
REST API
Java
1-click Apply
15d left
Senior Full-stack Dev/Project Lead (Python + React) | Greenfield E-commerce Platform
28 - 42 USD/h
28 - 42 USD/h
Polcode
19d left
Python
React
PostgreSQL
Python
React
PostgreSQL
19d left
Senior Full Stack (Node.js) Engineer
6 577 - 7 400 USD/month
6 577 - 7 400 USD/month
Ciklum
Gdańsk
18d left
AWS
TypeScript
Node.js
AWS
TypeScript
Node.js
18d left
Senior Full Stack (TypeScript, Node.js) Engineer
6 577 - 7 400 USD/month
6 577 - 7 400 USD/month
Ciklum
Gdańsk
18d left
AWS
TypeScript
Node.js
AWS
TypeScript
Node.js
18d left
IT Operator
1 946 - 2 224 USD/month
1 946 - 2 224 USD/month
OChK
Warszawa
29d left
Windows
monitoring
wysoka dostępność
Windows
monitoring
wysoka dostępność
29d left
QA Lead
42 - 47 USD/month
42 - 47 USD/month
emagine Polska
Kraków
14d left
1-click Apply
C#
Playwright
TypeScript
C#
Playwright
TypeScript
1-click Apply
14d left
SAP Integration Suite Specialist (for Ecosystem Integration Team)
56 USD/h
56 USD/h
emagine Polska
14d left
1-click Apply
SAP Integration Suite
CI/CD
REST
SAP Integration Suite
CI/CD
REST
1-click Apply
14d left
Tester manualny (mid)
15 - 17 USD/h
15 - 17 USD/h
Lumicode Sp. z o.o. (Pentacomp Group)
Warszawa
29d left
Manual Testing
Jira
scum
Manual Testing
Jira
scum
29d left
Airtable Engineer
7 783 - 8 895 USD/month
7 783 - 8 895 USD/month
Connectis
Warszawa
18d left
Airtable
Airtable API
Low-code
Airtable
Airtable API
Low-code
18d left
Cloud Engineer (hybrid, 3 days from the office)
2 780 - 6 949 USD/month
2 780 - 6 949 USD/month
Bnewable BV
20d left
1-click Apply
IaC
DevOps
Terraform
IaC
DevOps
Terraform
1-click Apply
20d left
Computational Physiology Engineer (Data Science, Biosignals)
5 560 - 7 505 USD/month
5 560 - 7 505 USD/month
Shen.AI
20d left
1-click Apply
Data Science
Pattern recognition
Python
Data Science
Pattern recognition
Python
1-click Apply
20d left
Full Stack Data Engineer (AWS & BI)
42 - 56 USD/day
42 - 56 USD/day
in4ge sp. z o.o.
4d left
AWS
CI/CD
BI
AWS
CI/CD
BI
4d left
Azure Data Architect
42 - 58 USD/day
42 - 58 USD/day
in4ge sp. z o.o.
4d left
Data
Azure
Data modeling
Data
Azure
Data modeling
4d left
Data Engineer (Azure Cloud)
33 - 42 USD/h
33 - 42 USD/h
in4ge sp. z o.o.
4d left
Data modeling
Databricks
SQL
Data modeling
Databricks
SQL
4d left
Tech Lead (Java & Angular)
33 - 51 USD/h
33 - 51 USD/h
in4ge sp. z o.o.
4d left
Angular
Scrum
Agile
Angular
Scrum
Agile
4d left
Super offer
Middle/Senior Node.js Developer
7 472 - 9 340 USD/month
7 472 - 9 340 USD/month
7N
21d left
1-click Apply
Node.js
Azure
Angular
Node.js
Azure
Angular
1-click Apply
21d left
Tester Manualny
17 - 22 USD/h
17 - 22 USD/h
Ness Solution
30d left
Testing
SQL
Bazy Danych
Testing
SQL
Bazy Danych
30d left
Freelance React Native Developer
14 - 25 USD/h
14 - 25 USD/h
TeaCode S.C.
Warszawa
19d left
React Native
React Native
19d left
Senior Java Backend Developer – Cloud and Banking Solutions 💥
306 - 389 USD/day
306 - 389 USD/day
ITDS
Kraków
19d left
1-click Apply
Java
DevOps
CI/CD
Java
DevOps
CI/CD
1-click Apply
19d left
Architekt rozwiązań IT
4 726 - 5 421 USD/month
4 726 - 5 421 USD/month
TSS
Warszawa
15d left
1-click Apply
XML
UML
JSON
XML
UML
JSON
1-click Apply
15d left
Mobile Automation Tester
19 - 25 USD/h
19 - 25 USD/h
SPEEDNET
30d left
Automated Testing
Test Automation
Android Studio
Automated Testing
Test Automation
Android Studio
30d left
Administrator ds. Systemów Operacyjnych Linux
3 753 - 4 225 USD/month
3 753 - 4 225 USD/month
TSS
Warszawa
15d left
1-click Apply
VMware
Oracle Linux
Linux
VMware
Oracle Linux
Linux
1-click Apply
15d left
Starszy analityk systemowy
4 448 - 5 004 USD/month
4 448 - 5 004 USD/month
TSS
Warszawa
15d left
1-click Apply
UML
Enterprise Architect
Confluence
UML
Enterprise Architect
Confluence
1-click Apply
15d left
Starszy Tester Oprogramowania
3 780 - 4 448 USD/month
3 780 - 4 448 USD/month
TSS
Warszawa
15d left
1-click Apply
JMeter
SQL
Selenium WebDriver
JMeter
SQL
Selenium WebDriver
1-click Apply
15d left
Analityk systemowy
2 780 - 3 614 USD/month
2 780 - 3 614 USD/month
TSS
Warszawa
15d left
1-click Apply
UML
Confluence
Jira
UML
Confluence
Jira
1-click Apply
15d left
Lead Kotlin Multiplatform Developer
6 000 - 7 800 USD/month
6 000 - 7 800 USD/month
N-iX
Kraków
29d left
iOS
Android
Kotlin
iOS
Android
Kotlin
29d left
Senior MLOps
5 000 - 7 000 USD/month
5 000 - 7 000 USD/month
N-iX
Kraków
29d left
DevOps
LLM
PyTorch
DevOps
LLM
PyTorch
29d left
Data Engineer
4 892 - 6 671 USD/month
4 892 - 6 671 USD/month
Kyotu Technology
Wrocław
14d left
Azure Databricks
Azure SQL Server
Data Lake / Data Warehouse
Azure Databricks
Azure SQL Server
Data Lake / Data Warehouse
14d left
PL/SQL/ Oracle APEX Developer
33 - 39 USD/h
33 - 39 USD/h
4IT Solutions
Warszawa
3d left
AWR
Git
PLSQL
AWR
Git
PLSQL
3d left
Zdalny Nauczyciel Programowania (Unity/Roblox/Scratch/Python/Blender/Photoshop)
973 - 1 251 USD/month
973 - 1 251 USD/month
Kodland
26d left
Scratch
C++
LUA
Scratch
C++
LUA
26d left
Korepetytor online - Python i Scratch
822 - 940 USD/month
822 - 940 USD/month
KODLAND
26d left
HTML5 / CSS3
Scartch
Unity
HTML5 / CSS3
Scartch
Unity
26d left
Korepetytor online - Python i Scratch
822 - 940 USD/month
822 - 940 USD/month
KODLAND
26d left
HTML5 / CSS3
Scartch
Unity
HTML5 / CSS3
Scartch
Unity
26d left
Korepetytor online - FunTech
822 - 940 USD/month
822 - 940 USD/month
KODLAND
26d left
C++
C++
26d left
Korepetytor online - Python Pro
822 - 940 USD/month
822 - 940 USD/month
KODLAND
26d left
Tutoring
Python
Python PRO
Tutoring
Python
Python PRO
26d left
Projektowanie/ilustracja/grafika
973 - 1 167 USD/month
973 - 1 167 USD/month
Kodland
26d left
Blender
Grafika
ilustracja
Blender
Grafika
ilustracja
26d left
Korepetytor online - Python Pro
822 - 940 USD/month
822 - 940 USD/month
KODLAND
26d left
Tutoring
Python
Python PRO
Tutoring
Python
Python PRO
26d left
Zdalny Nauczyciel Programowania (Unity/Roblox/Scratch/Python/Blender/Photoshop)
973 - 1 251 USD/month
973 - 1 251 USD/month
Kodland
26d left
Scratch
C++
LUA
Scratch
C++
LUA
26d left
Super offer
Senior UX Designer
26 - 39 USD/h
26 - 39 USD/h
Future Processing
Gliwice
27d left
UX
Figma
Scrum
UX
Figma
Scrum
27d left
Super offer
Senior Business Analyst
26 - 40 USD/h
26 - 40 USD/h
Future Processing
Gliwice
27d left
UML
BPMN
SAFe
UML
BPMN
SAFe
27d left
Thales Data Protection Engineer – Mid-Level
44 - 64 USD/h
44 - 64 USD/h
Ness Solution
Warszawa
25d left
Thales
CipherTrust Manager
Safenet Luna HSM
Thales
CipherTrust Manager
Safenet Luna HSM
25d left
Architekt IT / Architekt Korporacyjny
5 560 - 6 671 USD/month
5 560 - 6 671 USD/month
TSS
Warszawa
25d left
1-click Apply
Analiza Biznesowa
BPMN
Kubernetes
Analiza Biznesowa
BPMN
Kubernetes
1-click Apply
25d left
Senior Qt for MCUs Engineer / C++ Expert
47 - 56 USD/h
47 - 56 USD/h
H2B Group
24d left
C++
Qt
MCU
C++
Qt
MCU
24d left
Senior Frontend & Integration Engineer
44 - 58 USD/h
44 - 58 USD/h
Entrada AI
8d left
RESTful API
oauth
integration APIs
RESTful API
oauth
integration APIs
8d left
Data Analyst
31 - 35 USD/h
31 - 35 USD/h
emagine Polska
Warszawa
24d left
1-click Apply
Data
Analytical Thinking
Microsoft Dynamics
Data
Analytical Thinking
Microsoft Dynamics
1-click Apply
24d left
Thales Data Protection Engineer – Junior
28 - 42 USD/h
28 - 42 USD/h
Ness Solution
Warszawa
25d left
CipherTrust
Thales
Luna HSM
CipherTrust
Thales
Luna HSM
25d left
Senior System Analyst
4 448 - 5 837 USD/month
4 448 - 5 837 USD/month
ITDS
Warszawa
21d left
REST
Enterprise Architect
Postman
REST
Enterprise Architect
Postman
21d left
Senior BI Analyst & Automation Specialist (Power BI / No-Code)
3 892 - 5 560 USD/month
3 892 - 5 560 USD/month
Beecommerce.pl
Warszawa
21d left
Power BI
Google Analytics
Power Automate
Power BI
Google Analytics
Power Automate
21d left
AI R&D Engineer (Vertex AI & Open Source)
4 448 - 6 671 USD/month
4 448 - 6 671 USD/month
Beecommerce.pl
Warszawa
21d left
n8n
AI
MCP
n8n
AI
MCP
21d left
DevOps Engineer - Azure
4 031 - 5 004 USD/month
4 031 - 5 004 USD/month
Hostersi
Rybnik
19d left
Kubernetes
Azure
Grafana
Kubernetes
Azure
Grafana
19d left
Senior Data Engineer
7 783 - 9 451 USD/month
7 783 - 9 451 USD/month
Sigmoidal
3d left
Snowflake
Python
Airflow
Snowflake
Python
Airflow
3d left
AI Consultant
7 783 - 10 007 USD/month
7 783 - 10 007 USD/month
Sigmoidal
3d left
Python
Data Science
AI
Python
Data Science
AI
3d left
Senior Developer (.Net, Azure)
47 - 56 USD/h
47 - 56 USD/h
emagine Polska
19d left
1-click Apply
Software Development
ASP.NET
.Net
Software Development
ASP.NET
.Net
1-click Apply
19d left
Backend-Oriented Fullstack Developer - Service Tribe (Travel industry)
334 - 417 USD/day
334 - 417 USD/day
Cyclad
Poland (Remote)
19d left
AWS
TypeScript
Node.js
AWS
TypeScript
Node.js
19d left
Data & Revenue Operations Lead
6 393 - 8 339 USD/month
6 393 - 8 339 USD/month
Surfer
20d left
Power BI
DBT
HubSpot
Power BI
DBT
HubSpot
20d left
Golang Developer
7 005 - 9 340 USD/month
7 005 - 9 340 USD/month
H2B Group
Gdańsk
19d left
Golang
Kubernetes
CI/CD
Golang
Kubernetes
CI/CD
19d left
Databricks Developer
42 - 53 USD/h
42 - 53 USD/h
Pretius
Warszawa
20d left
Databricks
Big Data
Spark
Databricks
Big Data
Spark
20d left
FullStack (.NET / Angular) Developer
200 - 278 USD/day
200 - 278 USD/day
RITS Professional Services
Warszawa
28d left
.NET Core
Angular
.NET Core
Angular
28d left
Senior Backend Software Engineer (Security Team)
5 421 - 8 172 USD/month
5 421 - 8 172 USD/month
Zendesk
Kraków
26d left
1-click Apply
Go
Python
Java
Go
Python
Java
1-click Apply
26d left
Senior .Net Developer
29 - 33 USD/h
29 - 33 USD/h
Lumicode Sp. z o.o. (Pentacomp Group)
Warszawa
26d left
EF Core
Dapper
.NET Core
EF Core
Dapper
.NET Core
26d left
Open Application (IT Software)
22 - 56 USD/h
22 - 56 USD/h
H2B Group
22d left
Software Development
Software Development
22d left
AI Transformation Consultant
3 892 - 5 560 USD/month
3 892 - 5 560 USD/month
Vstorm
Wrocław
29d left
1-click Apply
AI
AI
1-click Apply
29d left
AI Transformation Consultant
5 004 - 6 949 USD/month
5 004 - 6 949 USD/month
Vstorm
Wrocław
29d left
1-click Apply
AI
AI
1-click Apply
29d left
Architekt Microsoft Dynamics ERP
44 - 58 USD/h
44 - 58 USD/h
in4ge sp. z o.o.
14d left
Microsoft Dynamics 365
ERP
SQL
Microsoft Dynamics 365
ERP
SQL
14d left
Machine Learning Engineer
36 - 40 USD/h
36 - 40 USD/h
TQLO SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Warszawa
15d left
1-click Apply
Machine Learning
Azure
Python
Machine Learning
Azure
Python
1-click Apply
15d left
Senior D365 Technical Consultant
36 - 47 USD/h
36 - 47 USD/h
Ness Solution
15d left
C#
.Net
JavaScript
C#
.Net
JavaScript
15d left
Senior .NET / D365 Integrator & Developer | Zdalnie
36 - 47 USD/h
36 - 47 USD/h
Ness Solution
15d left
C#
.Net
JavaScript
C#
.Net
JavaScript
15d left
Performance Tester
31 - 42 USD/h
31 - 42 USD/h
Spyrosoft
Wrocław
14d left
K6
K6
14d left
React Native Developer/ka (Senior/ Expert)
5 560 - 8 339 USD/month
5 560 - 8 339 USD/month
creativestyle
29d left
React Native
iOS
Android
React Native
iOS
Android
29d left

Job offers 10 277 offers

Senior .Net Engineer

56 - 69 USD/h

Product Architect

7 227 - 8 895 USD/month

Fullstack Software Engineer

3 058 - 4 170 USD/month

Java Developer - Trading Platform, Investment Bank

6 671 - 8 339 USD/month

Senior Frontend Developer - React, JavaScript, TypeScript (Financial Services)

8 339 - 11 119 USD/month

Snowflake Engineer / Architect

347 - 639 USD/day

Tech Lead/Lead Data Engineer 0.5 FTE

334 - 375 USD/day

Data Scientist

278 - 334 USD/day

Korepetytor online - Math

822 - 940 USD/month

Korepetytor online - Math

822 - 940 USD/month

Senior Cloud AI Engineer - RAG Platform

42 - 49 USD/h

Senior DevOps Engineer (AdTech/VOD) – 100% zdalnie 🌎

36 - 47 USD/day

Senior Python (Web development) Engineer

7 634 USD/month

Data Engineer

3 892 - 5 837 USD/month

Product Lead, Product Foundations

16 123 - 17 095 USD/month

IT Platforms Director

9 729 - 11 397 USD/month

Data Engineer - Spark, Pyspark, Databricks (Financial Services)

8 339 - 11 119 USD/month

MID Full Stack Developer (Python + Django + React.js)

222 - 311 USD/day

FullStack Developer (Vue/Laravel)

4 003 - 5 782 USD/month

Fullstack Developer (React.JS / Vue.JS / .NET / PHP)

4 448 - 6 227 USD/month

ML Engineer / Data Scientist

6 906 - 8 287 USD/month

Database Reliability Engineer (OpenSearch)

11 675 - 16 679 USD/month

MLOps Engineer

389 - 445 USD/day

Data Engineer

306 - 345 USD/day

Sr ML Engineer (computer vision)

6 949 - 8 895 USD/month

Senior Java Developer

5 837 - 7 227 USD/month

Java Developer

4 448 - 5 837 USD/month

CEPH Administrator

25 - 31 USD/h

Senior Cloud Data Engineer

44 - 53 USD/h

Java Software Engineer

3 058 - 4 726 USD/month

Senior Full-stack Dev/Project Lead (Python + React) | Greenfield E-commerce Platform

28 - 42 USD/h

Senior Full Stack (Node.js) Engineer

6 577 - 7 400 USD/month

Senior Full Stack (TypeScript, Node.js) Engineer

6 577 - 7 400 USD/month

IT Operator

1 946 - 2 224 USD/month

QA Lead

42 - 47 USD/month

SAP Integration Suite Specialist (for Ecosystem Integration Team)

56 USD/h

Tester manualny (mid)

15 - 17 USD/h

Airtable Engineer

7 783 - 8 895 USD/month

Cloud Engineer (hybrid, 3 days from the office)

2 780 - 6 949 USD/month

Computational Physiology Engineer (Data Science, Biosignals)