Backend Developer Jobs in Warsaw

Backend Developer jobs in Warsaw hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $92,171/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Warsaw
AI/ML
Software
Data
Security
DevOps & Cloud
Leadership
Product
Design
Fintech
Hardware & Chips
Defense
Aerospace
Biotech
Energy
Robotics
Automotive
MedTech
Science

Digital Forms

digitalforms.io
digitalforms.io · Warsaw · 5000+ employees · Est. 2015 · Trust D · Hiring 32
Warsaw · 5000+ employees · Est. 2015 · Trust D · Hiring 32
Turn operational drag into measurable margin. Service firms of 200–1,000 staff start with a Profit Leak Diagnostic — costed leaks, CFO-ready, no build.
No named decision-maker yet.
Careers mailbox is known
Likely inactiveVerified live · 3 hours ago 1 year ago Long shot · 1%

Senior Back-End Engineer (Python/AWS)

$76k – $116k per year · Senior · Warsaw · Remote (Poland) · Contractor · Senior
Python
Python
FastAPI
Django
Celery
Databases
MySQL
PostgreSQL
RabbitMQ
Redis
Apache Kafka
DevOps
GitLab CI
GitHub Actions
Jenkins
Git
CI/CD
AWS
Prometheus
Grafana
Terraform
Docker
+11
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Likely inactiveVerified live · 3 hours ago 1 year ago Long shot · 1%

Lead Back-End Engineer (Python/AWS)

$76k – $116k per year · Lead · Warsaw · Remote (Poland) · Contractor · Staff
Python
Rust
Node JS
Java
JavaScript
Python
FastAPI
Django
Databases
RabbitMQ
Redis
MySQL
Apache Kafka
PostgreSQL
DevOps
AWS CDK
Amazon EKS
AWS Lambda
Amazon ECS
Terraform
Docker
AWS
GitLab CI
Prometheus
GitHub Actions
Grafana
Jenkins
Kubernetes
CI/CD
+18
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RTB House

rtbhouse.com
rtbhouse.com · HQ: Warsaw, Poland · Machine Learning · Marketing & Sales AI · Advertising · 1001-5000 employees · Est. 2010 · Trust B · Hiring 62, 2 new
HQ: Warsaw, Poland · Machine Learning · Marketing & Sales AI · Advertising · 1001-5000 employees · Est. 2010 · Trust B · Hiring 62, 2 new
RTB House is a global advertising technology company that provides a demand-side platform (DSP) powered entirely by proprietary deep learning algorithms. The company specializes in personalized retargeting, brand advertising, and full-funnel performance marketing for e-commerce and enterprise advertisers across global markets. By leveraging advanced AI to analyze user behavior in real time, RTB House delivers highly tailored display, video, and programmatic ad campaigns to optimize conversion rates and ROI.
No named decision-maker yet.
Careers mailbox is known
Open 371 daysVerified live · 2 hours ago 1 year ago Long shot · 8%

Senior Software Engineer / Tech Lead

≈ $88k – $150k per year (Estimated) · Lead · Warsaw · Remote (Poland) · Staff · English
Java
Python
Databases
ClickHouse
Aerospike
MinIO
Memcached
ElasticSearch
Google BigQuery
Apache Kafka
PostgreSQL
DevOps
gRPC
DNS
Prometheus
Jenkins
GCP
Kubernetes
+8
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Dialo

dialo.ai
dialo.ai · HQ: Wilmington, United States · Custom Software Development · 11-50 employees · Est. 2018 · Likely startup · Trust B · Hiring 3
HQ: Wilmington, United States · Custom Software Development · 11-50 employees · Est. 2018 · Likely startup · Trust B · Hiring 3
We build and run voice AI agents that handle millions of real calls [noisy lines, heavy accents, unpredictable customers] and plug into complex enterprise systems.
No named decision-maker yet.
Careers mailbox is known
Open 381 daysVerified live · 2 hours ago 1 year ago Long shot · 5%

UI Engineer (Fullstack)

$37k – $107k per year · In office (Warsaw, Poland) · Full-Time
Apply

Velocity

velocity.xyz
velocity.xyz · HQ: London, United Kingdom · Stablecoins · Cryptocurrencies · Blockchain & Crypto · 51-200 employees · Est. 2025 · Startup · Trust B · Hiring 11
HQ: London, United Kingdom · Stablecoins · Cryptocurrencies · Blockchain & Crypto · 51-200 employees · Est. 2025 · Startup · Trust B · Hiring 11
The new global standard for moving capital. Move and manage funds seamlessly across banks, blockchains, and borders. Seamless. Secure. Stablecoin-powered.
No named decision-maker yet.
No careers mailbox known
Open 381 daysVerified live · 2 hours ago 1 year ago Long shot · 6%

Product Engineer

$76k – $107k per year · Middle · 3+ years exp · Hybrid (Warsaw, Poland) · Full-Time · Middle · English: C1
Node JS
Ruby
JavaScript
Python
Python
FastAPI
Django
Ruby
Ruby on Rails
Frontend
React.js
DevOps
GitHub
Rest API
GCP
Azure
CI/CD
AWS
OpenTelemetry
Pulumi
Prometheus
Grafana
Terraform
Cybersecurity
GDPR
+12
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Newcode

newcode.ai
newcode.ai · Oslo · Stockholm · Dublin · New York · Warsaw · Artificial Intelligence · Legal AI · 51-200 employees · Startup · Trust D · Hiring 13, 1 new
Oslo · Stockholm · Dublin · New York · Warsaw · Artificial Intelligence · Legal AI · 51-200 employees · Startup · Trust D · Hiring 13, 1 new
Company Building the future of legal tech. From its Oslo beginnings, Newcode has scaled from a three-person team into a 60+ global organization of world-class engineers, PhDs, lawyers and domain experts shaping the future of legal tech.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 2 hours ago 1 year ago Long shot · 5%

Senior Fullstack Developer

Senior · In office (Oslo, Norway, Stockholm, Sweden, Copenhagen, Denmark, Dublin, Ireland, Warsaw, Poland) · Full-Time · Senior
TypeScript
Python
JavaScript
Python
FastAPI
Celery
Databases
Redis
PostgreSQL
AI/ML
Cursor
Claude Code
Copilot
RAG
LLM
LlamaIndex
LangChain
Frontend
Tailwind CSS
React.js
Zustand
Next.js
React Query
Radix UI
shadcn/ui
DevOps
WebSockets
+14
Apply
Likely inactiveVerified live · 2 hours ago 1 year ago Long shot · 4%

Senior FastAPI Developer

Senior · Oslo · Stockholm · Copenhagen · Dublin · Warsaw · Remote (United States, Denmark, Ireland, Norway, Poland) · Full-Time · Senior · English (Optional)
SQL
Python
Python
FastAPI
Databases
Redis
PostgreSQL
AI/ML
Embeddings
Function Calling
Cursor
Claude Code
Copilot
RAG
LLM
LlamaIndex
LangChain
DevOps
WebSockets
+7
Apply

Tickmill

tickmill.com
tickmill.com · HQ: London, United Kingdom · Online Brokerage & Trading Platforms · Forex & CFD Brokers · 201-500 employees · Est. 2014 · Trust A · Hiring 33, 1 new
HQ: London, United Kingdom · Online Brokerage & Trading Platforms · Forex & CFD Brokers · 201-500 employees · Est. 2014 · Trust A · Hiring 33, 1 new
Tickmill is a global financial brokerage and multi-asset trading platform specializing in foreign exchange, contracts for difference (CFDs), commodities, and index futures. Headquartered in London, United Kingdom, the company operates under multiple international regulatory frameworks to provide retail and institutional clients with high-speed execution and direct access to global markets. Through advanced trading platforms and robust liquidity solutions, the firm delivers competitive spreads, automated trading tools, and comprehensive financial services to traders worldwide.
No named decision-maker yet.
No careers mailbox known
Likely inactiveVerified live · 1 hour ago 1 year ago Long shot · 6%

Backend Developer (.NET) - Poland

≈ $43k – $77k per year (Estimated) · Middle · 3+ years exp · In office (Warsaw, Poland) · Bachelor's Degree · Full-Time · Middle · English: C1
C#
C#
.NET
DevOps
Azure
CI/CD
AWS
Apply

Capital.com

capital.com
capital.com · HQ: Limassol, Cyprus · Online Brokerage & Trading Platforms · Forex & CFD Brokers · 501-1000 employees · Est. 2016 · Trust B · Hiring 47, 1 new
HQ: Limassol, Cyprus · Online Brokerage & Trading Platforms · Forex & CFD Brokers · 501-1000 employees · Est. 2016 · Trust B · Hiring 47, 1 new
Capital.com is a global fintech company and online trading platform headquartered in Limassol, Cyprus, and founded in 2016. The company provides access to over 5,500 financial instruments including contracts for difference (CFDs) on stocks, indices, commodities, forex, and cryptocurrencies. It operates internationally with offices in London, Melbourne, Warsaw, and Dubai, serving over three million registered accounts through its proprietary AI-powered web and mobile platforms.
No named decision-maker yet.
No careers mailbox known
Open 504 daysVerified live · 3 hours ago 1 year ago Long shot · 3%

Java Software Engineer

≈ $50k – $97k per year (Estimated) · Hybrid (Warsaw, Poland, Sofia, Bulgaria, Limassol, Cyprus)
Java
SQL
Java
Spring Framework
Databases
Apache Kafka
DevOps
Kubernetes
CI/CD
Apply

Tradevest

tradevest.ai
tradevest.ai · Munich · Warsaw · Online Brokerage & Trading Platforms · Trust B · Hiring 5
Munich · Warsaw · Online Brokerage & Trading Platforms · Trust B · Hiring 5
Tradevest is a financial technology company with offices in Munich and Warsaw that builds its platform on Go, AWS serverless services, Kafka and PostgreSQL. Its vacancies include backend software engineers, a risk manager, a lawyer, an information security officer and accountants. The company is based in Germany.
No named decision-maker yet.
No careers mailbox known
Open 525 daysVerified live · 3 hours ago 1 year ago Long shot · 6%

Senior or Mid Backend Software Engineer (m/f/d)

≈ $60k – $100k per year (Estimated) · Senior · 3+ years exp · Hybrid (Warsaw, Poland) · Full-Time · Senior
Go
SQL
Databases
DynamoDB
Apache Kafka
PostgreSQL
DevOps
Terraform
CI/CD
AWS
AWS Lambda
API Gateway
+2
Apply

Intent

withintent.com
withintent.com · HQ: Warsaw, Poland · IoT Platforms & Solutions · Mobile App Development Services · 51-200 employees · Est. 2008 · Trust A · Hiring 13, 1 new
HQ: Warsaw, Poland · IoT Platforms & Solutions · Mobile App Development Services · 51-200 employees · Est. 2008 · Trust A · Hiring 13, 1 new
Intent is a software development company that designs and builds mobile apps, embedded firmware and cloud software for connected devices and Internet of Things products. Its teams cover product design, mobile and firmware engineering and project management, and it worked on the app for the Oura smart ring. The company is headquartered in Warsaw, Poland.
No named decision-maker yet.
Careers mailbox is known
Verified live · 27 min ago 1 year ago Fading · 36%

Senior Backend Developer (freelance)

$46k – $96k per year · Senior · 7+ years exp · Warsaw · Remote (Poland, CET hours) · Freelance · Senior · English: B2
Go
Node JS
JavaScript
Databases
DynamoDB
Amazon Aurora
DevOps
Amazon EKS
Amazon S3
AWS
GitLab CI
GitHub Actions
Jenkins
Terraform
Docker
Kubernetes
CI/CD
IoT
MQTT
Management
Jira
+9
Apply

Fakturownia

fakturownia.pl
fakturownia.pl · HQ: Warsaw, Poland · Mobile Games · Est. 2012 · Hiring 3
HQ: Warsaw, Poland · Mobile Games · Est. 2012 · Hiring 3
Fakturownia is a Warsaw software company founded in 2012 that provides online invoicing for small businesses. Its application issues invoices in several languages and currencies and connects to accounting offices and e-commerce platforms. The service is used by hundreds of thousands of Polish companies and freelancers.
No named decision-maker yet.
Careers mailbox is known
Open 920 daysVerified live · 2 hours ago 2 years ago Long shot · 6%

Mid/Senior Backend Developer

≈ $57k – $96k per year (Estimated) · Senior · In office (Warsaw, Poland) · Senior · Polish: C1
Ruby
PHP
JavaScript
SQL
Python
TypeScript
Ruby
Ruby on Rails
Databases
MySQL
PostgreSQL
Frontend
Vue.js
Tailwind CSS
JQuery
Webpack
Vite
Angular
React.js
DevOps
GitHub
AWS
+10
Apply
Machines can read this selection · checked 21:47 UTC
Backend Developer Jobs in Warsaw
Frequently asked questions
How many Backend Developer jobs in Warsaw are available on Alion?
There are currently 402 active listings from 177 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Warsaw pay?
The average salary is around $92,171 per year based on the current listings.
Are remote options available for Backend Developer jobs in Warsaw?
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 Warsaw?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.