Backend Developer Jobs in Kraków

Backend Developer jobs in Kraków hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $79,317/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Kraków
AI/ML
Data Science
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Frontend
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Quantum

Oscilar

oscilar.com
Oscilar is a risk management platform that focuses on fraud defense, credit underwriting, onboarding risk, and AML compliance for financial institutions. Through its advanced AI Risk Decisioning™, Oscilar enables organizations to make faster and more intelligent risk decisions, monitor customer journeys, and ensure regulatory compliance seamlessly. Oscilar's platform provides comprehensive analytics and proactive detection capabilities, tailored to meet the unique risk needs of banks, fintechs, and credit unions.
oscilar.com • HQ: Palo Alto, United States • Financial Services • FinTech • Fraud Detection • Est. 2021
HQ: Palo Alto, United States • Financial Services • FinTech • Fraud Detection • Est. 2021
$108k – $158k per year • Equity • Staff+ • 5+ years exp • Remote (Poland) • Bachelor's Degree • Full-Time • Staff
Java
Java
Gradle
Maven
Databases
Apache Kafka
ClickHouse
DevOps
AWS
CI/CD
Docker
Git
Jenkins
Kubernetes
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Flosum

flosum.com
Flosum is a Salesforce-native DevOps and deployment platform built for enterprise teams. Automate releases, improve governance, and deploy faster with confidence.
flosum.com • HQ: San Ramon, United States • Software • Information Technology • DevOps
HQ: San Ramon, United States • Software • Information Technology • DevOps
Verified live · 1 day ago 5 months ago

Senior Node.js Developer (Poland)

$63k – $98k per year (Estimated) • Senior • 5+ years exp • Remote (Poland) • Senior
Apex
Node JS
SQL
TypeScript
JavaScript
Apex
Lightning Web Components
Visualforce
Frontend
Vue.js
DevOps
AWS
Azure
CI/CD
Docker
GCP
Git
Cybersecurity
FedRAMP
GDPR
HIPAA
SOC 2
Marketing
Salesforce
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Fuse Energy

fuseenergy.com
Fuse Energy is a British household energy supplier headquartered in London, founded by former Revolut executives. It was the first new domestic energy supplier in Great Britain since the 2021 energy crisis and operates its own renewable generation assets.
fuseenergy.com • HQ: London, United Kingdom • Solar Energy • Energy & Utilities • 501-1000 employees • Est. 2022
HQ: London, United Kingdom • Solar Energy • Energy & Utilities • 501-1000 employees • Est. 2022
Open 144 daysVerified live · 7 hours ago 5 months ago

Senior/Lead Backend Engineer (Remote)

$139k – $278k per year (Estimated) • Lead • Remote (United States, Germany, France, Netherlands, Poland) • Full-Time • Staff
AWS
AWS CDK
Robotics
Digital Twin
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Supabase

supabase.io
Supabase is an open-source backend-as-a-service company headquartered in San Francisco, California, and founded in 2020. The company provides a suite of development tools built on top of PostgreSQL, including database management, user authentication, edge functions, real-time data synchronization, and vector storage for machine learning applications. Operating as a remote-first organization, it serves a global community of developers and enterprises by offering a scalable alternative to proprietary cloud platforms through its integrated suite of open-source technologies.
supabase.io • HQ: San Francisco, United States • Machine Learning • Artificial Intelligence • Cloud Computing • Mobile App Development • Software • Web Development • Information Technology • Database Management • 201-500 employees • Est. 2020
HQ: San Francisco, United States • Machine Learning • Artificial Intelligence • Cloud Computing • Mobile App Development • Software • Web Development • Information Technology • Database Management • 201-500 employees • Est. 2020
Verified live · 1 hour ago 5 months ago

Software Engineer - Auth

$69k – $194k per year (Estimated) • Equity • Middle • 4+ years exp • Remote • Full-Time • Middle
Go
TypeScript
Python
PHP
JavaScript
Ruby
Ruby
Ruby on Rails
Python
Django
PHP
Laravel
Databases
MySQL
PostgreSQL
Supabase
Frontend
Next.js
React.js
DevOps
Vector
GitHub
AWS
Grafana
Kubernetes
OpenTelemetry
Prometheus
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Verified live · 1 hour ago 7 months ago

Postgres Engineer

Equity • Remote • Full-Time
Rust
Databases
PostgreSQL
Supabase
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Morpho

morpho.org
Morpho is a decentralised lending protocol founded in 2021 by a team based in Paris. It replaces monolithic lending pools with minimal, immutable markets that anyone can configure, layering curated vaults on top for passive depositors. The protocol is used by fintech applications and exchanges to embed crypto-backed lending without operating their own credit infrastructure.
morpho.org • HQ: Paris, France • Creative Agencies • Design & Creative • Branding • Est. 2021
HQ: Paris, France • Creative Agencies • Design & Creative • Branding • Est. 2021
Open 151 dayVerified live · 18 min ago 5 months ago

Staff Backend Engineer

$75k – $157k per year (Estimated) • Staff+ • 10+ years expParis • Remote (Europe) • Full-Time • Staff
TypeScript
Databases
PostgreSQL
Frontend
GraphQL
Web3
DeFi
Morpho
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CaptivateIQ

captivateiq.com
CaptivateIQ is a software company headquartered in San Francisco, California, and was founded in 2017. The company provides a sales performance management platform that automates incentive compensation calculations, sales capacity planning, and territory management. It serves over 1,000 customers globally, ranging from mid-market firms to large enterprises, and utilizes a proprietary calculation engine to process complex commission data.
captivateiq.com • HQ: San Francisco, United States • Analytics Platforms • FinTech • Financial Services • Business Process Automation (BPA) • Software • Sales Enablement • Sales & Marketing • Data & Analytics • Est. 2017
HQ: San Francisco, United States • Analytics Platforms • FinTech • Financial Services • Business Process Automation (BPA) • Software • Sales Enablement • Sales & Marketing • Data & Analytics • Est. 2017
Open 153 daysVerified live · 1 day ago 6 months ago

Staff Software Engineer - AI Platform

$95k – $166k per year (Estimated) • Staff+ • 8+ years exp • Remote (Poland) • Full-Time • Staff
Python
TypeScript
Python
Django
AI/ML
LLM
AI Agents
Model Context Protocol
LangChain
LangGraph
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Open 310 daysVerified live · 1 day ago 11 months ago

Fullstack Software Engineer - Poland

$44k – $91k per year (Estimated) • Middle • 4+ years exp • Remote (Poland) • Full-Time • Middle
JavaScript
Python
TypeScript
Python
Django
Databases
MySQL
PostgreSQL
Frontend
React.js
Chakra UI
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Stermedia

stermedia.ai
98% of clients recommend us | Take advantage of our experience in creating artificial intelligence and software development for your project. | Focus: React, Python, AI, Mobile ReactNative, Cloud, DevOps, design. Let's talk!
stermedia.ai • DevOps • Software • Artificial Intelligence • Est. 2009
DevOps • Software • Artificial Intelligence • Est. 2009
Open 156 daysVerified live · 1 day ago 6 months ago

Senior Technical Expert Java

$71k – $106k per year • Senior • Remote (Poland) • Contractor • Senior
Java
TypeScript
JavaScript
Java
Spring Boot
Databases
PostgreSQL
AI/ML
LLM
Semantic Search
Frontend
Angular
DevOps
Amazon EC2
Amazon EKS
AWS
AWS Lambda
CI/CD
Terraform
Kubernetes
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Open 1669 daysVerified live · 1 day ago 4 years ago

Python Developer

$53k – $96k per year (Estimated) • Remote (Poland) • Full-Time • English
Python
Python
Django
Celery
FastAPI
Databases
Apache Kafka
Dgraph
MinIO
MySQL
DevOps
Docker
Amazon EC2
AWS
Kubernetes
TeamCity
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Mimica

mimica.ai
Mimica watches you work and learns to automate your most repetitive tasks. Its research and tech are backed by Entrepreneur First, Europe's most successful accelerator and seed fund.
mimica.ai • HQ: London, United Kingdom • AI Agents • Software • Business Process Automation (BPA) • 201-500 employees
HQ: London, United Kingdom • AI Agents • Software • Business Process Automation (BPA) • 201-500 employees
Open 158 daysVerified live · 1 day ago 6 months ago

Staff/Lead Fullstack Engineer (Frontend-focused)

$95k – $191k per year (Estimated) • Equity • Lead • 8+ years expBuenos AiresBerlinAmsterdamPragueBarcelona • Remote (Germany, United Kingdom, Argentina, Brazil, Czech Republic) • Full-Time • Staff • English: C1
JavaScript
AI/ML
LLM
AI Agents
Frontend
React.js
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Restream

restream.io
Restream is #1 solution that helps to broadcast live video to all social networks simultaneously. Millions of people around the world use Restream to reach, engage, and monetize their audiences. We're a small and diverse group of dreamers who mak...
restream.io • Austin • Tallinn • Software • Video Production • Media & Entertainment
Austin • Tallinn • Software • Video Production • Media & Entertainment
Open 158 daysVerified live · 1 day ago 6 months ago

Senior Software Engineer - Backend - AI Clips Team

$69k – $196k per year (Estimated) • Equity • Senior • Remote (Europe) • Full-Time • Senior
Node JS
Rust
TypeScript
JavaScript
Databases
Redis
DevOps
AWS
CI/CD
Docker
Kubernetes
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ShopMy

shopmy.us
ShopMy is an industry leading platform used to effortless integrate all aspects of creator marketing, from talent discovery to collaboration and monitoring. We work with a network of 40K+ creators and drive millions in order volume monthly for our brand partners. With ShopMy brands have the resources and tools to build a world-class creator marketing program, all in one place.
shopmy.us • New York • Commerce • Est. 2020
New York • Commerce • Est. 2020
Open 333 daysVerified live · 6 hours ago 11 months ago

Senior Full Stack Engineer

$67k – $190k per year (Estimated) • Senior • 5+ years exp • Remote (Europe) • Bachelor's Degree • Senior
JavaScript
Node JS
Frontend
React.js
Redux
Sass
DevOps
AWS
Amazon CloudWatch
Amazon ECS
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Zendesk

zendesk.com
Zendesk is redefining customer and employee experience. Our AI-powered solutions help over 100,000 companies build better relationships and grow. We push boundaries of what's possible and create tech that brings people closer.
zendesk.com • Mexico City • Pune • Melbourne • San Francisco • London • Artificial Intelligence • Software • Customer Relationship Management (CRM) • 1001-5000 employees
Mexico City • Pune • Melbourne • San Francisco • London • Artificial Intelligence • Software • Customer Relationship Management (CRM) • 1001-5000 employees
Open 178 daysVerified live · 1 day ago 6 months ago

Software Engineer II / Senior Software Engineer - General Consideration

$67k – $107k per year (Estimated) • Senior • 4+ years expRemote/Hybrid (Kraków, Poland) • Bachelor's Degree • Full-Time • Senior
JavaScript
Python
Ruby
Scala
Ruby
Ruby on Rails
DevOps
AWS
Amazon ECS
Amazon S3
Marketing
Zendesk
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OpenProject.org

openproject.org
Achieve great things together We empower project teams to achieve great things together for the good of society. OpenProject is targeted at organizations that want to positively impact the world.
openproject.org • Financial Services • Software • Project Management
Financial Services • Software • Project Management
Open 206 daysVerified live · 1 day ago 7 months ago

Senior Ruby on Rails Developer

$89k – $217k per year (Estimated) • Senior • Remote • PhD • Full-Time • Senior • German • English
JavaScript
Ruby
TypeScript
Ruby
Ruby on Rails
Stimulus
Frontend
Angular
React.js
DevOps
CI/CD
GitHub
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Infakt

infakt.pl
Infakt is a Polish company in the financial technology and accounting services sector. It provides an online platform for invoicing, bookkeeping, and tax management, along with access to professional accountants for businesses and self-employed individuals.
infakt.pl • Kraków • Billing & Invoicing • Financial Services • FinTech
Kraków • Billing & Invoicing • Financial Services • FinTech
Open 209 days 7 months ago

Ruby On Rails Developer

$54k – $97k per year (Estimated)In office (Kraków, Poland) • Full-Time • Intern • Polish: C1
Ruby
JavaScript
Ruby
Capybara
Hotwire
RSpec
Ruby on Rails
Sidekiq
Stimulus
Databases
Apache Kafka
PostgreSQL
RabbitMQ
AI/ML
Claude
Claude Code
Copilot
Cursor
Windsurf
Frontend
React.js
DevOps
AWS
CI/CD
Datadog
GitHub Actions
Kubernetes
Rest API
GitHub
Cybersecurity
Dependabot
QA
Postman
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Sperasoft

sperasoft.com
Sperasoft is a leading games development company with development centers in USA, Poland, Malta, Armenia and Serbia.
sperasoft.com • HQ: Warsaw, Poland • PC Games • Gaming • Game Development
HQ: Warsaw, Poland • PC Games • Gaming • Game Development
Verified live · 1 day ago 8 months ago

C++ Developer / Programista C++

$53k – $96k per year (Estimated)Warsaw • Remote (Poland) • Full-Time • English
C++
C++
STL
DevOps
CI/CD
Game Dev
Unreal Engine
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Attio

attio.com
Attio is a software company headquartered in London, United Kingdom, that was founded in 2019. The company provides an AI-native customer relationship management platform that enables revenue teams to build pipelines, automate sales workflows, and manage deal history through data enrichment and universal context layers. It operates globally as a software-as-a-service provider, catering to startups and enterprise clients looking to replace traditional spreadsheets with automated revenue management systems.
attio.com • HQ: London, United Kingdom • Business Process Automation (BPA) • Sales Enablement • AI Agents • Artificial Intelligence • Customer Relationship Management (CRM) • Software • Sales & Marketing • Est. 2019
HQ: London, United Kingdom • Business Process Automation (BPA) • Sales Enablement • AI Agents • Artificial Intelligence • Customer Relationship Management (CRM) • Software • Sales & Marketing • Est. 2019
Open 262 daysVerified live · 12 hours ago 9 months ago

Engineering Lead

$140k – $169k per year • Lead • Remote (Poland, Portugal, Ireland, Germany) • Full-Time • Staff
Go
Node JS
TypeScript
JavaScript
AI/ML
AI Agents
Frontend
React.js
DevOps
AWS
GCP
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Flying Bisons

flyingbisons.com
Flying Bisons is a strategic design and implementation firm that provides digital consulting services focused on creating and improving online products and user experiences. The company offers expertise in areas such as digital strategy, research, design, and end to end delivery for organizations undergoing digital transformation.
flyingbisons.com • Warsaw • Professional Services • Design & Creative • UI/UX Design
Warsaw • Professional Services • Design & Creative • UI/UX Design
Open 299 days 10 months ago

Freelance Backend Developer

$28k – $71k per year (Estimated) • Junior • 2+ years exp • Remote (Europe) • Freelance • Junior • English: B2
PHP
SQL
PHP
Symfony
PHPUnit
DevOps
Docker
Git
CI/CD
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Metabase

metabase.com
Metabase is an open source Business Intelligence and Embedded Analytics tool. Connect to your data stack in 5 minutes to make queries, visualizations, and dashboards easy for everyone—no SQL required.
metabase.com • LLM & Generative AI • Information Technology • Data & Analytics • 51-200 employees • Est. 2015
LLM & Generative AI • Information Technology • Data & Analytics • 51-200 employees • Est. 2015
Open 312 daysVerified live · 6 hours ago 11 months ago

Success Engineer (EU)

$63k – $151k per year (Estimated) • Middle • 3+ years exp • Remote (EU, United Kingdom) • Full-Time • Middle
SQL
DevOps
AWS
Docker
GCP
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Hospitable

hospitable.com
Best vacation rental software in 2023 and 2024. Whether you use Airbnb, Vrbo, or Booking.com - Hospitable will help you automate.
hospitable.com • London • New York • Atlanta • Brussels • Amsterdam • Software • Property Management • Vacation Rentals • Est. 2016
London • New York • Atlanta • Brussels • Amsterdam • Software • Property Management • Vacation Rentals • Est. 2016
Open 332 daysVerified live · 1 day ago 11 months ago

Product Engineer, Core & Connectivity (Laravel - Remote)

$121k – $247k per year (Estimated) • Equity • Middle • 3+ years exp • Remote (EU, United States, Australia) • Full-Time • Middle
PHP
TypeScript
JavaScript
PHP
Laravel
Databases
MySQL
Frontend
Angular
DevOps
Kubernetes
Management
Slack
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Telestream

telestream.com
Telestream builds media transcoding, capture and quality monitoring software. Its products move video between formats and verify delivery across broadcast workflows. Studios, broadcasters and streaming services use the tools in production pipelines.
telestream.com • HQ: Grass Valley, United States • Video & Image Processing Software • Software • Business Process Automation (BPA) • Est. 1998
HQ: Grass Valley, United States • Video & Image Processing Software • Software • Business Process Automation (BPA) • Est. 1998
$64k – $102k per year (Estimated) • Senior • 5+ years expRemote/Hybrid (Kraków, Poland) • Bachelor's Degree • Full-Time • Senior
Go
Databases
Cassandra
CockroachDB
ElasticSearch
DevOps
AWS
Azure
GCP
Kubernetes
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Exclusive Networks

exclusive-networks.com
Exclusive Networks is a French company founded in 2003 and a global specialist distributor of cybersecurity technologies. It brings vendors such as Fortinet, Palo Alto Networks and CrowdStrike to resellers in more than forty countries. The group listed on Euronext Paris in 2021 before being taken private again in 2025.
exclusive-networks.com • HQ: Boulogne-Billancourt, France • Internet Security Services • Information Security • Cybersecurity • Est. 2003
HQ: Boulogne-Billancourt, France • Internet Security Services • Information Security • Cybersecurity • Est. 2003
Open 340 daysVerified live · 1 day ago 12 months ago

Global Backend Developer

$54k – $98k per year (Estimated)Remote/Hybrid (Kraków, Poland) • Full-Time • Polish: C1
JavaScript
Node JS
TypeScript
Databases
Apache Kafka
RabbitMQ
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Backend Developer Jobs in Kraków
Frequently asked questions
How many Backend Developer jobs in Kraków are available on Alion?
There are currently 261 active listings from 74 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Kraków pay?
The average salary is around $79,317 per year based on the current listings.
Are remote options available for Backend Developer jobs in Kraków?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in Kraków?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.