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Backend Jobs in London
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Senior Blockchain Engineer
MoonPay
Barcelona +6
Barcelona
Bucharest
Lisbon
Krakow
London
New York City
Remote
Employment contract
Senior
Web3
DeFi
NFTs
Blockchain Engineer
MoonPay
Barcelona +6
Barcelona
Bucharest
Cape-town
Lisbon
Krakow
London
Remote
Other
Mid/Regular
Web3
DeFi
NFTs
Senior Backend Engineer
MoonPay
London +6
London
Bucharest
Cape-town
Krakow
Lisbon
Barcelona
Remote
Employment contract
Senior
TypeScript
React
NextJS
Senior Backend Engineer - Tech Lead
Pleo
Madrid +3
Madrid
London
Lisbon
Remote
Employment contract
Lead / Principal
Od 6 500 GBP
AWS
Google Cloud
Kubernetes
Senior Backend Engineer
Pleo
Madrid +3
Madrid
London
Lisbon
Remote
Employment contract
Senior
6 600 - 7 000 GBP
microservices
distributed systems
AWS
Senior Python Engineer
emagine Polska
Remote
Contractor
Senior
AI
Backend
RAG
Developer Relations Engineer
Telnyx
Amsterdam +4
Amsterdam
Denver
Krakow
Dublin
Remote
Other
Mid/Regular
SDK automation
Developer experience
API
Senior AWS Python Backend Engineer (MedTech)
Holisticon Connect Sp. z o.o.
Remote
B2B contract
Senior
20 800 - 24 000 PLN
Python
Django
SQL
Senior Software Engineer (Java)
Solvd
Remote
Other
Senior
Spring
MariaDB
REST API
Senior Java Engineer
Provectus
Warsaw +2
Warsaw
Belgrade
Remote
B2B contract
Senior
Kubernetes
Docker
Maven
Senior Robotics & Software Engineer
Nomagic
Warsaw +1
Warsaw
Remote
Employment contract
Senior
Od 25 000 PLN
Python
ABB
AI
Software Engineer
Truv
Remote
Other
Mid/Regular
DevOps
AWS
Docker
Senior Ruby on Rails Engineer
Keyloop
Reading +1
Reading
Remote
Employment contract
Senior
Ruby
RSpec
JavaScript
Ruby on Rails Developer
Keyloop
Reading +1
Reading
Remote
Employment contract
Mid/Regular
Ruby
RSpec
JavaScript
Engineering Manager - Gateway - EMEA
Kong
Remote
Employment contract
Senior
Rust
Linux
distributed systems
C# (Aspose) Developer
Civitta
Remote
Other
Junior
Od 800 EUR
Aspose
LINQ
Staff Software Engineer - Protocols
Okta
Remote
Employment contract
Senior
JavaScript
TypeScript
MongoDB
Senior Full Stack Engineer
Readdle
Remote
Other
Senior
Go
HTML
CSS
Backend Software Engineer
Capital on Tap
Remote
Contractor
Mid/Regular
C#
.Net Core
SQL Server
DevOps Engineer
Datapeople
Lisbon +2
Lisbon
Sofia
Remote
Part-time
Senior
DevOps
SRE
Python
Senior Software Engineer, Ecosystem Integrations
Redis
Remote
Employment contract
Senior
Java
Python
JavaScript
Backend Software Engineer - AI
Redis
Remote
Employment contract
Senior
AI
Backend
Cloud Services
Sr. Developer Advocate
Hashicorp
Remote
Contractor
Senior
Infrastructure as Code
DevOps
HashiCorp
Backend Engineer (PHP)
TransferGo
Remote
Employment contract
Mid/Regular
PHP
Symfony
AWS
Backend Engineer
Wrike
Tallinn +1
Tallinn
Remote
Other
Mid/Regular
Spring
REST APIs
SQL
Mainframe (z/
OS, Assembler) Developer
TeamQuest
Lodz +1
Lodz
Remote
B2B contract/Employment contract
Senior
28 000 - 38 000 PLN
z/OS
Mainframe
IBM
Mainframe (z/
OS, Assembler) Developer
TeamQuest
Wroclaw +1
Wroclaw
Remote
B2B contract/Employment contract
Senior
28 000 - 38 000 PLN
z/OS
Mainframe
HLASM
Mainframe (z/
OS, Assembler) Developer
TeamQuest
Poznan +1
Poznan
Remote
B2B contract/Employment contract
Senior
28 000 - 38 000 PLN
z/OS
Mainframe
IBM
Mainframe (z/
OS, Assembler) Developer
TeamQuest
Lublin +1
Lublin
Remote
B2B contract/Employment contract
Senior
28 000 - 38 000 PLN
z/OS
Mainframe
COBOL
Software Engineer .Net
TeamQuest
Bialystok +1
Bialystok
Remote
B2B contract
Senior
21 000 - 28 000 PLN
.NET Core
Microsoft SQL Server
Angular
Software Engineer .Net
TeamQuest
Gdansk +1
Gdansk
Remote
B2B contract
Senior
21 000 - 28 000 PLN
.NET Core
Microsoft SQL Server
Angular
Senior C++ Software Developer (Virtualization)
Acronis
Remote
Other
Senior
Virtualization
VMware
Hyper-V
Software Engineer
Epiq
Remote
B2B contract/Employment contract
Senior
Django
FastAPI
Docker
Python Developer - Backend & CI/
CD Specialist
Astreya
Remote
B2B contract
Mid/Regular
Backend Development
CI/CD
Jenkins
Senior Software Engineer
Astreya
Remote
Employment contract
Senior
Software Development
Troubleshooting
Debugging
Software Engineer – Capacity Planning Tooling
Astreya
Remote
Employment contract
Mid/Regular
Go
automation
capacity planning
Software Engineer – Infrastructure Automation
Astreya
Remote
Employment contract
Mid/Regular
Automation
Infrastructure
Observability
Senior Backend Engineer
Wrike
Tallinn +1
Tallinn
Remote
Employment contract
Senior
Spring
REST APIs
SQL
Senior Back-End Engineer
Veriff
Tallinn +1
Tallinn
Remote
Other
Senior
Python
TypeScript
Node.js
Senior AI Developer
Enavate
Kharkiv +1
Kharkiv
Remote
Other
Senior
Microsoft Fabric
Azure OpenAI
Azure ML
Senior Software Engineer - Go
Innovecs
Remote
B2B contract
Senior
Go
Lead Cloud Developer (Java/
Rust + Javascript/
Typescript)
Holisticon Connect Sp. z o.o.
Remote
B2B contract/Employment contract
Senior
18 000 - 24 000 PLN
Java
Rust
JavaScript
Go Software Engineer
Verkada
Remote
B2B contract/Employment contract
Mid/Regular
Od 14 000 PLN
Python
REST
gRPC
Kotlin Developer
TeamQuest
Katowice +1
Katowice
Remote
B2B contract
Senior
20 000 - 28 000 PLN
Android
backend
PHP
Kotlin Developer
TeamQuest
Krakow +1
Krakow
Remote
B2B contract
Senior
20 000 - 28 000 PLN
Android
backend
PHP
Developer Microsoft Dynamics 365 Finance & Operations (D365 F&O)
TeamQuest
Warsaw +1
Warsaw
Remote
B2B contract
Mid/Regular
22 000 - 27 000 PLN
X++
C#
SQL Server
Senior Platform Engineer
DraftKings
Remote
Employment contract
Senior
C#
Kubernetes
Helm Charts
Senior Software Engineer
DraftKings
Remote
Other
Senior
backend
microservices
Docker
Software Engineer
DraftKings
Sofia +1
Sofia
Remote
Employment contract
Junior
microservices
real-time data pipelines
streaming infrastructure
Senior Software Engineer, Automation
DraftKings
Sofia +1
Sofia
Remote
Employment contract
Senior
Node.js
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