Sphera is an environmental, health, safety, and sustainability software company headquartered in Chicago, Illinois, and established in 2016 when Genstar Capital carved the business out of IHS. The company sells software and consulting for operational risk management, product stewardship and chemical compliance, and corporate sustainability reporting including life cycle assessment. It serves heavy industry customers in chemicals, oil and gas, manufacturing, and utilities, and has been owned by Blackstone since 2021.
HQ: Chicago, United States • Environmental Science • Science & Engineering • Security Compliance • Cybersecurity • Energy Management • Energy & Utilities • Enterprise Resource Planning (ERP) • Software • 501-1000 employees • Est. 2016
≈ $25k – $58k per year (Estimated) • Junior • 2+ years exp • Poland • Remote (Poland) • Full-Time • Junior • Polish: C2
≈ $86k – $149k per year (Estimated) • Lead • 5+ years exp • Poland • Remote (Poland) • Full-Time • Staff
Shift-Left
Azure
Azure DevOps
Cybersecurity
Shift-Left Security
≈ $71k – $118k per year (Estimated) • Staff+ • 7+ years exp • Poland • Remote (Poland) • Full-Time • Architect
C#
Node JS
JavaScript
SQL
C#
.NET
Databases
Azure SQL Database
AI/ML
Claude
Claude Code
Function Calling
Hallucination
AI Agents
Human-in-the-Loop
LLM Guardrails
RAG
LLM
Model Context Protocol
DevOps
AWS
Azure
MLabs is a global software engineering consultancy specializing in high-assurance software engineering, formal verification, and mission-critical systems. Founded in 2018, the company focuses on functional programming languages like Haskell and Rust to build secure, high-performance infrastructure for blockchain, Web3, fintech, and AI projects.
HQ: London, United Kingdom • Information Technology • Blockchain & Crypto • Software
$69k – $93k per year • Remote (Europe)
$120k – $200k per year • Senior • 8+ years exp • Poland • Remote (Poland) • Full-Time • Senior
C++
Rust
Databases
Apache Kafka
PostgreSQL
RabbitMQ
Redis
DevOps
AWS
Azure
Docker
GCP
Kubernetes
WebSockets
Web3
DeFi
Smart Contracts
Focus Group is a leading independent provider of essential business technology solutions in the UK, established in 2003. The company specializes in offering a comprehensive range of services including IT, telecommunications, and connectivity services, all designed to keep businesses connected and efficient. Focus Group is renowned for its innovative solutions and exceptional customer service, ensuring businesses run smoothly, whether they are small enterprises or large corporations.
HQ: London, United Kingdom • Government • Cybersecurity • Information Technology • Est. 2003
≈ $101k – $224k per year (Estimated) • Executive • Remote • Contractor • Architect
RemotePass is a comprehensive platform designed to streamline HR and payroll management for global and local teams. It allows companies to onboard, manage, and pay contractors and employees across more than 150 countries with full compliance. RemotePass offers an all-in-one solution for HR operations, including Employer of Record services, visa and work permit sponsorship, time off management, and benefits customization to suit different countries.
Sales & Marketing • Media & Entertainment • Financial Services • Insurance • Influencers • Advertising
Equity • Senior • 5+ years exp • Remote (United Arab Emirates, United Kingdom, Poland, Romania, Spain) • Senior
Netguru is a digital consultancy and software development company headquartered in Poznan, Poland, and founded in 2008. The firm provides a wide range of services including custom software engineering, product design, artificial intelligence development, and cloud infrastructure management. Operating globally with a team of over 600 specialists, the company serves clients across various sectors such as finance, healthcare, and retail, focusing on digital transformation and AI-native commerce solutions.
HQ: Poznań, Poland • Machine Learning • Artificial Intelligence • Web Development • IT Outsourcing • Information Technology • Design & Creative • Mobile App Development • Software • Est. 2008
≈ $68k – $158k per year (Estimated) • Staff+ • Remote (Poland) • Freelance • Architect • Polish: C1
Kotlin
Swift
Swift
Hero
AI/ML
Tokenization
Mobile
Modularization
PassKit
DevOps
CI/CD
up to $98k per year • Staff+ • Poznań • Remote (Poland) • Freelance • Architect
Node JS
JavaScript
Cybersecurity
OWASP Top 10
PCI DSS
$163k per year • Executive • Remote (Poland) • Freelance • Architect
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
Next.js
Turborepo
React.js
DevOps
CI/CD
Terraform
Cybersecurity
SOC 2
Our core values tell our story:Excellence. Creativity. Integrity. Teamwork. Empathy.
San Diego • Zurich • Artificial Intelligence • Design & Creative • Financial Services • Software • IT Consulting • Information Technology • 201-500 employees
≈ $118k – $260k per year (Estimated) • Staff+ • 10+ years exp • Remote (Europe) • Bachelor's Degree • Architect
Python
SQL
Databases
MySQL
PostgreSQL
Snowflake
AI/ML
AI Agents
Anomaly Detection
Claude
Embeddings
Fine-tuning
Function Calling
Hallucination
LLM
NLP
NumPy
Pandas
Prompt Engineering
PyTorch
RAG
Reranking
Scikit-learn
Sentiment Analysis
Spark
TensorFlow
Vertex AI
Amazon SageMaker
Anthropic
Context Engineering
Hugging Face
Human-in-the-Loop
Structured Outputs
Claude Code
LangChain
LangGraph
LlamaIndex
Model Context Protocol
Semantic Kernel
LLM Guardrails
LLMOps
DevOps
AWS
AWS Lambda
Azure
GCP
Vector
Amazon S3
CI/CD
Docker
Kubernetes
Analytics
Matplotlib
Power BI
Seaborn
Tableau
ETL/ELT
Management
ServiceNow
AeroVect is an autonomous driving technology company headquartered in San Francisco, California, and founded in 2020. The company develops the AeroVect Driver, an AI-powered software platform designed to automate ground support equipment such as baggage tractors and cargo haulers at airports. Its solutions are deployed at major passenger and cargo hubs globally to improve operational safety, reduce labor costs, and enhance reliability in airside environments.
HQ: San Francisco, United States • Logistics & Warehouse Robotics • Robotics • Transportation & Logistics • Ground Systems • Space & Aerospace • Air Transport • Artificial Intelligence • Autonomous Driving • 201-500 employees • Est. 2020
≈ $170k – $283k per year (Estimated) • Staff+ • 5+ years exp • Stockholm • London • Amsterdam • Paris • Toronto • Remote (United States, Germany, France, United Kingdom, Canada) • Bachelor's Degree • Full-Time • Staff
C++
Python
Robotics
Mission Planner
Motion Planning
ROS
ROS2
$160k – $180k per year • Senior • 5+ years exp • South San Francisco • Stockholm • London • Berlin • New York • Remote (United States, Germany, France, United Kingdom, Canada) • Bachelor's Degree • Full-Time • Senior
C++
Python
DevOps
RTOS
Robotics
Motion Planning
ROS
ROS2
≈ $137k – $227k per year (Estimated) • Senior • London • Atlanta • Toronto • Remote (United States, Canada, United Kingdom, Italy, Poland) • Bachelor's Degree • Full-Time • Senior
Python
DevOps
CI/CD
Docker
Robotics
CARLA
Gazebo
Isaac Sim
NVIDIA Omniverse
ROS
ROS2
RunPod is a cloud computing company headquartered in Mount Laurel, New Jersey, and founded in 2022. The company provides a specialized AI developer cloud featuring on-demand GPU instances, serverless GPU endpoints, and multi-node GPU clusters for training and inference. It operates a global infrastructure across more than 30 regions, serving over one million developers with scalable compute resources for machine learning and generative AI workloads.
HQ: Mount Laurel, United States • IT Infrastructure • LLM & Generative AI • Machine Learning • Artificial Intelligence • Hardware • AI Infrastructure • Information Technology • Cloud Computing • Est. 2022
$100k – $180k per year • Equity • Middle • 3+ years exp • Remote (EMEA, United States) • Bachelor's Degree • Full-Time • Middle
Go
JavaScript
Node JS
Python
SQL
Python
Django
Flask
Databases
MySQL
PostgreSQL
AI/ML
Fine-tuning
LLM
PyTorch
RunPod
AI Agents
Frontend
React.js
DevOps
Docker
Ubuntu
$81k – $96k per year • Equity • Senior • 5+ years exp • Remote (EMEA) • Bachelor's Degree • Full-Time • Senior
Go
JavaScript
Node JS
Python
SQL
Python
Django
Flask
Databases
MySQL
PostgreSQL
AI/ML
Fine-tuning
LLM
PyTorch
RunPod
AI Agents
Frontend
React.js
DevOps
Datadog
Docker
Grafana
Ubuntu
TigerData is a database company headquartered in New York City, founded in 2017 and known until 2025 as Timescale. The company develops TimescaleDB, a PostgreSQL extension for time-series, events, and real time analytics, and offers a managed cloud service built on it. It serves developers working on IoT telemetry, financial data, observability, and AI applications, and maintains the core project as open source alongside its commercial cloud.
HQ: New York, United States • Software • Big Data • Data Warehousing • Data & Analytics • Database Management • Information Technology • Est. 2017
≈ $64k – $150k per year (Estimated) • Equity • Remote (EMEA, United States) • Bachelor's Degree • Full-Time
Python
Databases
PostgreSQL
TimescaleDB
AI/ML
AI Agents
DevOps
AWS
Azure
GCP
Docker
Kubernetes
Cloudatus is an information technology consulting company in the cloud computing and digital transformation field. It provides cloud architecture design, migration, optimization, and managed services for enterprise workloads.
HQ: Warsaw, Poland • Information Technology • IT Consulting • Cloud Computing
$35k – $58k per year • Rzeszów • Remote (Poland) • Full-Time • German (Optional)
Azure
Hyper-V
Proxmox VE
VMWare
Windows Server
SLI/SLO/SLA
$35k – $58k per year • Gdańsk • Remote (Poland) • Full-Time • German (Optional)
Azure
Hyper-V
Proxmox VE
VMWare
Windows Server
SLI/SLO/SLA
$40k – $63k per year • Rzeszów • Remote (Poland) • Bachelor's Degree • Full-Time • German (Optional)
Java
TypeScript
JavaScript
Frontend
Angular
D3.js
DevOps
Azure
CI/CD
Git
Analytics
Plotly
QA
Swagger
Oszczędzaj czas, zwiększaj sprzedaż dzięki automatyzacji ✔ Welyo to platforma do wielokanałowej komunikacji ✔ Pełna kontrola w jednym systemie Contact Center do obsługi klienta
Poznań • Łódź • Warsaw • Customer Relationship Management (CRM) • Online Communication • Communication & Collaboration
$64k – $77k per year • Senior • Warsaw • Remote (Poland) • Senior • Polish: C1
$51k – $64k per year • Poznań • Remote (Poland) • Full-Time • Polish: C1
PHP
Python
C#
C#
.NET
Databases
Apache Kafka
PostgreSQL
Redis
AI/ML
LLM
RAG
DevOps
Ansible
CI/CD
Docker
Docker Swarm
GitHub Actions
Jenkins
Kubernetes
Prometheus
Zabbix
GitHub
Toloka is a data company founded in 2014 and headquartered in Amsterdam that supplies human-generated training, fine-tuning and evaluation data for artificial intelligence systems. It began as a large-scale crowdsourcing platform and has repositioned around expert work, combining domain specialists, machine learning tooling and quality control pipelines to produce reasoning traces, preference rankings and agentic task data. Operating within the Nebius group and backed by Bezos Expeditions since 2025, the company serves frontier model laboratories and enterprises building their own systems.
HQ: Amsterdam, Netherlands • Machine Learning • Data & Analytics • Data Collection • LLM & Generative AI • Artificial Intelligence • 51-200 employees • Est. 2014
Remote (Europe, United States) • Freelance
≈ $80k – $182k per year (Estimated) • Senior • 5+ years exp • Remote (Europe, United States) • Freelance • Senior
AI Agents
Anthropic
EU AI Act
Human-in-the-Loop
Cybersecurity
GDPR
Design
Figma
Management
Notion
Slack
Remote (EU, United States, United Kingdom, Serbia) • Master's Degree • Freelance
Python
AI/ML
LLM
LoRA
NumPy
Pandas
PEFT
RAG
RLHF
Synthetic Data
Transformers
Anthropic
DPO
PPO
SFT
AI Agents
Fine-tuning
Testlio is an AI-powered crowdsourced software testing and quality assurance (QA) platform headquartered in Austin, Texas, with operational origins in Tallinn, Estonia. Founded in 2012 by Kristel Kruustük and Marko Kruustük, the Series B enterprise has raised over $19 million in venture backing from investors including Spring Lake Equity Partners and Techstars.
HQ: Austin, United States • Software • Information Technology • Quality Assurance • Est. 2012
Equity • Staff+ • 10+ years exp • Remote (EMEA, United States) • Master's Degree • Freelance • Architect
Equity • Lead • 5+ years exp • Remote (EMEA) • Visa sponsorship • Freelance • Staff
JavaScript
Node JS
TypeScript
Databases
Apache Kafka
AI/ML
AI Agents
Claude
Claude Code
LLM
Function Calling
Frontend
GraphQL
React.js
DevOps
AWS
Datadog
New Relic
QA
Sentry
Equity • Lead • 15+ years exp • Remote (United Kingdom, Poland) • Freelance • Architect • English: C1
LLM
LLM Guardrails
DevOps
AWS
CI/CD
Cybersecurity
ISO 27001
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.
Warsaw • Dubai • São Paulo • Milan • Prague • Artificial Intelligence • Sales & Marketing • Advertising • 51-200 employees • Est. 2010
≈ $56k – $122k per year (Estimated) • Middle • 3+ years exp • Remote (Poland) • Contractor • Middle
JavaScript
PHP
Python
SQL
≈ $39k – $119k per year (Estimated) • Middle • 4+ years exp • Remote (Poland) • Middle
ChatGPT
Claude
Design
Figma
$96k – $118k per year • Senior • Warsaw • Remote (Poland) • Full-Time • Senior
Python
DevOps
Ansible
eBPF
Kubernetes
AWS
Debian
GCP
Git
Grafana
Prometheus
Proxmox VE
Puppet
Ubuntu
Zabbix
Sopra Steria Poland is the Polish subsidiary of the European IT and consulting group Sopra Steria. It delivers information technology services including software development, consulting, and business process support for clients in various economic sectors.
HQ: Warsaw, Poland • Software • Information Technology • IT Consulting • 5000+ employees
≈ $41k – $75k per year (Estimated) • Katowice • Remote (Poland) • Full-Time • French: B1
$54k – $75k per year • Senior • Katowice • Remote (Poland) • Full-Time • Senior • French • German: B2
Java
PowerShell
TypeScript
DevOps
Azure
CI/CD
Docker
Kubernetes
Shift-Left
Cybersecurity
Shift-Left Security
QA
Cypress
JMeter
Playwright
Selenium
$58k – $71k per year • Staff+ • 10+ years exp • Katowice • Remote (Poland) • Full-Time • Architect • French
Red Hat is the world’s leading provider of open source solutions, using a community-powered approach to provide reliable and high-performing cloud, virtualization, storage, Linux, and middleware technologies. Red Hat also offers award-winning support, training, and consulting services.
HQ: Somerville, United States • Software • Artificial Intelligence • Information Technology • 1001-5000 employees • Est. 1993
≈ $109k – $238k per year (Estimated) • Staff+ • 5+ years exp • United Kingdom • Ireland • Remote (EMEA) • Full-Time • Architect • English: C1
Fine-tuning
Edge AI
LLM Guardrails
AI Agents
DevOps
Kubernetes
OpenShift
Red Hat
OnTheGoSystems is a remote team of tech enthusiasts, innovators, creatives, and engineers. Together, we build products that allow businesses of all sizes to go global.
Belgrade • Zagreb • Kyiv • Bucharest • Athens • Translation Services • Web Development • Software
≈ $58k – $117k per year (Estimated) • Barcelona • Remote (Poland, Serbia, Spain, Ukraine) • Full-Time
Ruby
SQL
Ruby
Ruby on Rails
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.
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
≈ $149k – $249k per year (Estimated) • Equity • Lead • Remote • Full-Time • Staff
PostgreSQL
Supabase
DevOps
Grafana
SLI/SLO/SLA
Vector
Management
Notion
Marketing
HubSpot
Equity • Remote • Full-Time
JavaScript
TypeScript
Databases
PostgreSQL
Supabase
Frontend
Next.js
React.js
Svelte
Vue.js
≈ $91k – $208k per year (Estimated) • Equity • Senior • 5+ years exp • Remote • Full-Time • Senior
JavaScript
Rust
TypeScript
Databases
PostgreSQL
Redis
Supabase
AI/ML
Model Context Protocol
Frontend
WebAssembly
DevOps
AWS
Cloudflare
Kubernetes
OpenTelemetry
WebSockets
Management
Slack
Svitla Systems is a global digital solutions and custom software engineering company headquartered in California, with delivery centers across North America, Latin America, Europe, and Asia. Founded in 2003, the company offers end-to-end IT services, including cloud architecture, AI/machine learning integration, data engineering, DevOps, and mobile and web application development.
HQ: Kraków, Poland • Artificial Intelligence • Information Technology • Software • Est. 2003
≈ $63k – $97k per year (Estimated) • Senior • Białystok • Remote (Poland) • Full-Time • Senior
Java
Python
TypeScript
JavaScript
Java
Spring Boot
AI/ML
AI Agents
Copilot
Fine-tuning
Haystack
LangChain
LangGraph
LLM
Model Context Protocol
Prompt Engineering
RAG
Semantic Kernel
OpenAI
Frontend
React.js
DevOps
Azure
Azure AKS
Kubernetes
GitHub
≈ $66k – $109k per year (Estimated) • Senior • Warsaw • Remote (Poland) • Full-Time • Senior
Java
Python
JavaScript
TypeScript
Java
Spring Boot
AI/ML
AI Agents
Copilot
Fine-tuning
Haystack
LangChain
LangGraph
LLM
Model Context Protocol
Prompt Engineering
RAG
Semantic Kernel
OpenAI
Frontend
React.js
DevOps
Azure
Azure AKS
Kubernetes
GitHub
≈ $46k – $84k per year (Estimated) • Senior • Warsaw • Remote (Poland) • Master's Degree • Full-Time • Senior • German: C1
OKX is a global cryptocurrency exchange and Web3 technology company founded in 2017 and among the largest venues by trading volume. It offers spot, margin, futures, options and perpetual swap markets across hundreds of digital assets, alongside earn products, copy trading and institutional custody and prime services. The company also runs one of the most used self-custodial wallets and a decentralised exchange aggregator that connects to dozens of chains, and it operates the OKB token and the X Layer network, with major operational hubs in Singapore, Hong Kong, Dubai and San Jose.
HQ: Singapore • DeFi • Web3 & dApps • Crypto Wallets • Blockchain & Crypto • Cryptocurrencies • Crypto Exchanges • 1001-5000 employees • Est. 2017
Middle • 4+ years exp • Lisbon • Remote (EMEA) • Contractor • Middle • Dutch: C1 • French: C1 • German: C1
