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Backend Developer jobs
Backend Developer
Python
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Senior Software Engineer
Lumilens
Krakow, San-jose +1
Krakow
San-jose
Remote
Employment contract
Senior
.NET
Python
WPF
AI Developer
TechTorch
Remote
Employment contract
Mid/Regular
LangChain
LangGraph
AWS Bedrock
LLM Application Engineer
Klient Bulldogjob
Remote
B2B contract
Mid/Regular
25 000 - 33 000 PLN
PyTorch
JAX
OpenAI API
Backend Software Developer (C#)
Reply Polska
Katowice
Employment contract
Senior
13 000 - 19 000 PLN
.NET
AWS
Terraform
Backend Engineer, AI (Agent Systems)
Klient Bulldogjob
Remote
B2B contract
Mid/Regular
25 000 - 33 000 PLN
Node.js
PyTorch
Kubernetes
Software Engineer
Novanta
Barcelona
Other
Junior
Qt
EtherCAT
Git
Murex Tech Migration Senior SME
Luxoft DXC
Remote
Employment contract
Senior
MxML
Python
Unix
Regular Software Engineer
Luxoft DXC
Krakow, Wroclaw
Employment contract
Mid/Regular
Scala
Spark
Java
Regular Software Engineer
Luxoft DXC
Krakow, Wroclaw
Employment contract
Mid/Regular
Scala
Python
Spark
Senior Python Engineer
Kayak
Vilnius
Employment contract
Senior
From 4 000 EUR
Django
Pandas
SQL
Senior Java/
Python Backend Developer
Luxoft DXC
Krakow, Wroclaw
Employment contract
Senior
Python
Spring Boot
Terraform
Senior SW Engineer (Backend - events)
Luxoft DXC
Remote
Employment contract
Senior
Python
Kafka
Kubernetes
Senior Software Engineer (Backend) - Lingo
Abbott
Barcelona
Other
Senior
Kafka
Kubernetes
Python
Senior Java Developer
Luxoft DXC
Krakow
Employment contract
Senior
ION
Python
Perl
Support Engineer (L3)
Reply Polska
Katowice
Employment contract
Mid/Regular
5 000 - 13 000 PLN
AWS
Azure
APIs
Senior Software Engineer (Python, Rust)
Constructor TECH
Remote
Employment contract
Senior
Python
FastAPI
PostgreSQL
Senior Backend Engineer (Cloud)
Luxoft DXC
Remote
Employment contract
Senior
Go
AWS
Kubernetes
Senior Software Developer
Luxoft DXC
Krakow, Wroclaw
Employment contract
Senior
Linux
C++
SQL
Senior Backend Developer (Python/
Docker)
Luxoft DXC
Remote
Employment contract
Senior
FastAPI
MongoDB
Docker
Back End Tech Lead - Funnel Platform
iwoca
London, Remote
Employment contract
Lead / Principal
7 500 - 10 000 GBP
Django
PostgreSQL
Back-End Engineer - Repeats
iwoca
London
Employment contract
Junior
From 5 000 GBP
Django
PostgreSQL
React
Enterprise Solutions Engineer - Netherlands
Elevenlabs
Amsterdam, Remote
Other
Mid/Regular
Forward Deployed Engineer - Software Engineer - Spain
Elevenlabs
Remote
Other
Mid/Regular
Python Developer
Anyone AI
Remote
Contractor
Senior
From 2 400 USD
JavaScript
TypeScript
Java
Senior AI/
ML Engineer (GenAI, AWS)
Provectus
Kyiv, Odesa +1
Kyiv
Odesa
Remote
B2B contract
Senior
AWS
LLM
TypeScript
Quantitative Developer - AHL
Man Group
London
Other
Senior
C++
Java
NumPy
Principal Engineer
Aleph
Madrid
Other
Lead / Principal
PHP
Python
TypeScript
Senior Software Engineer - Verification Platform
Veriff
Tallinn, Remote
Other
Senior
Kubernetes
SQS
Senior Software Engineer (Trust)
Veriff
Tallinn, Remote
Other
Senior
SQS
RabbitMQ
Kubernetes
Staff Software Engineer, Agentic Platform
Tide
Berlin, Bengaluru +2
Berlin
Bengaluru
Delhi
Hyderabad
Other
Lead / Principal
Spring Boot
Kafka
AWS
Staff Software Engineer, Agentic Platform
Tide
London, Remote
Employment contract
Lead / Principal
Spring Boot
Kafka
Python
Staff/
Lead Python Engineer (FastAPI, Orchestration)
Mimica
Warsaw, Prague +7
Warsaw
Prague
São Paulo
Stockholm
Amsterdam
Berlin
London
Toronto
Remote
Other
Lead / Principal
FastAPI
Grafana
Prometheus
Freelance Backend Developer
.monks
Amsterdam
Freelance
Senior
Java
Python
GCP
Applied AI Engineer
Monq Ltd
Remote
Other
Mid/Regular
SAP
Oracle Database
Coupa
Forward Deployed Engineer (Python, AI/
ML, Generative AI) - UK based
Modus Create
Remote
Other
Senior
TypeScript
AWS
Docker
Senior Back-End Engineer
Preply
Kyiv
Other
Senior
Django
React
TypeScript
Senior Back-End Engineer
Preply
Barcelona
Other
Senior
Django
JavaScript
TypeScript
Data Engineer (Marketing Systems)
Ruby Labs
Remote
Contractor
Mid/Regular
SQL
BigQuery
Airflow
Senior Platform Engineer (x/
f/
m) - Data Retention & Privacy
Alan
Remote
Other
Senior
Flask
React
PostgreSQL
Senior Backend Engineer - Golang
SumUp
Sofia
Employment contract
Senior
Python
Kubernetes
Kafka
Senior Back-end Engineer - Customer Operations Platform
iwoca
London
Employment contract
Senior
From 6 600 GBP
Django
React
TypeScript
Python Engineer
Kayak
Vilnius
Employment contract
Junior
From 3 000 EUR
Django
NumPy
Pandas
Staff AI Software Engineer
Aircall
Madrid
Employment contract
Lead / Principal
6 600 - 10 000 EUR
TypeScript
Python
AWS
Senior Software Engineer
BLP Digital AG
Zurich, Remote
Employment contract
Senior
Python
React
TypeScript
Software Engineer - Backend
Helsing
Berlin, London +4
Berlin
London
Munich
Paris
Stockholm
Tallinn
Other
Mid/Regular
Python
gRPC
Docker
Senior AI/
ML Engineer (GenAI, AWS)
Provectus
Yerevan, Remote
B2B contract
Senior
AWS
TypeScript
Anthropic
Staff Software Engineer
Lyft
Remote
Other
Lead / Principal
Python
Go
Java
AI/
ML Developer
Civitta
Budapest
Employment contract
Mid/Regular
FastAPI
Docker
OpenSearch
Senior Software Engineer - Python & AI
Nearform
Remote
Employment contract
Senior
From 6 200 GBP
Go
React
Kubernetes
Software Engineer Data Platform
NN Group
Amsterdam
Employment contract
Mid/Regular
From 4 600 EUR
PySpark
Delta Lake
Azure
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