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
CAST AI is an AI-driven cloud automation and Kubernetes cost optimization platform built to help enterprises manage, scale, and secure their cloud infrastructure. Founded in 2019 and headquartered in Miami, Florida, the company automates cloud operations across major hyper-scalers including Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure.
HQ: Miami, United States • Information Technology • Virtualization • DevOps
Equity • Senior • Remote (EU) • Visa sponsorship • Senior
Go
TypeScript
AI/ML
AI Agents
DeepSeek
MiniMax
Anthropic
Model Context Protocol
OpenAI
DevOps
AWS
Azure
CI/CD
GCP
Grafana
Kubernetes
OpenTelemetry
Prometheus
Cybersecurity
Least Privilege
Equity • Senior • Remote (EU, Europe) • Relocation • Visa sponsorship • Senior
Go
AI/ML
AI Agents
Hugging Face
DevOps
Akamai
Amazon EKS
AWS
Azure
Azure AKS
containerd
CRI-O
GCP
Google GKE
gRPC
Kubernetes
Equity • Senior • Remote (EU, Europe) • Visa sponsorship • Internship • Senior
Hugging Face
DevOps
Akamai
Kubernetes
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
$70k – $93k per year • Remote (Europe)
SupportYourApp is an international customer support outsourcing company headquartered in Wilmington, Delaware, with a strong operational presence in Ukraine and across Europe. Founded in 2010, the company provides 24/7 multi-channel, multilingual customer service, technical support, and desk solutions tailored primarily for tech startups, SaaS providers, and global enterprises. Through secure, ISO-certified practices and AI-enhanced workflows, the firm enables growing businesses to scale their user engagement and retention globally.
HQ: Kyiv, Ukraine • Professional Services • IT Outsourcing • Technical Support • Est. 2010
Remote (Greece) • Contractor • French: B2
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
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
Kaizen Gaming is a global "GameTech" enterprise headquartered in Athens, Greece, that specializes in online sports betting, casino games, and digital entertainment services. Founded in 2012, the company operates two primary consumer-facing brands: Stoiximan (serving Greece and Cyprus) and Betano (serving international markets across Europe, Latin America, North America, and Africa).
HQ: Athens, Greece • HQ: St. Julian's, Malta • Sports • Sports Betting • iGaming & Gambling • 51-200 employees
Senior • In office (Thessaloniki, Greece) • Senior
JavaScript
TypeScript
Frontend
Angular
React.js
Vue.js
Pinia
Tailwind CSS
Vite
Vuex
Web Components
DevOps
Rest API
WebSockets
Junior • 2+ years exp • In office (Thessaloniki, Greece) • Bachelor's Degree • Junior
C#
SQL
QA
Playwright
Selenium
Lead • In office (Thessaloniki, Greece) • Staff
C#
SQL
C#
.NET
Databases
MS SQL
RabbitMQ
DevOps
OpenShift
Rest API
Aylo (formerly known as MindGeek) is a global technology and digital media conglomerate specializing in online adult entertainment, gaming platforms, and tech infrastructure. Headquartered in Luxembourg with major operational hubs in Montreal and Europe, the company develops and operates several of the internet's largest high-traffic media properties.
HQ: Montreal, Canada • Content Management Systems (CMS)
Senior • 3+ years exp • Remote/Hybrid (Thessaloniki, Greece) • Bachelor's Degree • Internship • Senior
Go
Python
Databases
Redis
AI/ML
AI Agents
DevOps
Nginx
Senior • 5+ years exp • Remote/Hybrid (Thessaloniki, Greece) • Full-Time • Senior
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
Athens • Remote (Czech Republic, Italy, Romania, Greece) • 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
Softtek is a Mexican technology company founded in 1982 and headquartered in Monterrey. It provides software development, digital transformation and managed services worldwide. The company pioneered the nearshore delivery model from Latin America.
HQ: Monterrey, Mexico • Information Technology • 1001-5000 employees • Est. 1982
≈ $50k – $106k per year (Estimated) • Junior • 2+ years exp • Remote • Junior • Spanish: C1
PowerShell
DevOps
Azure
Incident Management
SLI/SLO/SLA
Splunk
Vector
Cybersecurity
Darktrace
Microsoft Entra ID
MITRE ATT&CK
OKX is a global cryptocurrency exchange and digital asset platform. It offers spot, margin, futures, and options trading, plus a Web3 wallet, DeFi access, and NFT features. The company has positioned itself as a broad crypto ecosystem for both beginners and advanced traders.
HQ: San Jose, United States • HQ: Dubai, United Arab Emirates • 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
Executive • 10+ years exp • Remote (EMEA) • Architect
SportyBet is an international sports betting, gaming, and digital entertainment platform owned by Sporty Group. Founded by Sudeep Ramnani in 2013, the platform is a market-leading sports betting operator in Africa - with operations across Nigeria, Ghana, Kenya, Zambia, Tanzania, and Uganda - and has expanded internationally into markets like Brazil.
HQ: London, United Kingdom • Gaming • Sports • iGaming & Gambling • Sports Betting • Est. 2013
≈ $50k – $123k per year (Estimated) • Middle • 3+ years exp • Remote (Europe) • Middle
JavaScript
Mobile
AppsFlyer SDK
Cybersecurity
GDPR
Analytics
A/B Testing
Marketing
GA4
Google Ads
Meta Ads
TikTok Ads
≈ $77k – $170k per year (Estimated) • Senior • 3+ years exp • Remote (EU) • Bachelor's Degree • Senior
Python
Databases
MongoDB
MySQL
DevOps
CI/CD
Docker
Jenkins
Kubernetes
Rest API
AWS
Management
Jira
QA
Chrome DevTools
Playwright
Postman
Selenium
Appium
≈ $28k – $147k per year (Estimated) • Middle • 4+ years exp • Remote • Middle
Java
Node JS
JavaScript
TypeScript
Frontend
Angular
NgRx
React.js
Redux
Sass
Vue.js
Vuex
Webpack
Vue Router
Mobile
State Management
DevOps
Git
AWS
Jenkins
Kubernetes
QA
Playwright
Synthesia is an AI video generation platform that enables users to create professional, studio-quality videos from plain text scripts without needing traditional cameras or film crews. The platform utilizes hyper-realistic digital avatars and natural synthetic voice models to deliver localized video content across dozens of languages in minutes. Widely adopted by corporate enterprises, Synthesia streamlines corporate training, customer onboarding, and internal communications at scale.
HQ: London, United Kingdom • Software • Artificial Intelligence • Generative Video • Video & Image Processing Software • 51-200 employees • Est. 2017
≈ $93k – $236k per year (Estimated) • Senior • Remote (Europe) • Full-Time • Senior
Python
AI/ML
DeepSpeed
Diffusion Models
PyTorch
FSDP
CUDA
CUDA Toolkit
DevOps
CI/CD
Datadog
AWS
Docker
SLURM
GitHub
Design
Webflow
Management
Miro
Remote (Europe) • Full-Time
Python
AI/ML
AI Agents
LLM
DevOps
Datadog
GitHub Actions
Kubernetes
Terraform
GitHub
Design
Webflow
Management
Miro
≈ $136k – $298k per year (Estimated) • Staff+ • Remote (Europe) • Full-Time • Staff
Fine-tuning
Knowledge Distillation
Multimodal AI
PyTorch
Tokenization
DPO
Post-training
Time Series Forecasting
Diffusion Models
DevOps
Datadog
Design
Webflow
Management
Miro
Speechify is a voice AI productivity company best known for its text-to-speech app. It lets users listen to articles, PDFs, books, and web pages, and also offers voice typing, AI summaries, and AI podcasts. The company was founded in 2017 and is centered on accessibility and productivity.
HQ: Miami, United States • Education • AI Agents • Artificial Intelligence • 5000+ employees
$30k – $55k per year • In office (Thessaloniki, Greece) • PhD
Text-to-Speech
DevOps
AWS
Azure
Docker
GCP
Kubernetes
Vercel
$30k – $55k per year • Senior • 5+ years exp • In office (Thessaloniki, Greece) • Bachelor's Degree • Senior
Python
AI/ML
Text-to-Speech
DevOps
Docker
GCP
Terraform
Vercel
$30k – $55k per year • Senior • In office (Thessaloniki, Greece) • Senior
Kotlin
Java
Mobile
Kotlin Multiplatform
DevOps
GCP
UP Education is a major private dual-sector tertiary education provider operating across New Zealand and Australia. Headquartered in Auckland, the group delivers higher education degrees, vocational education and training (VET), and university preparation pathway programs across a regional network of over 60 campuses alongside online platforms.
HQ: Auckland, New Zealand • Education
New Zealand • Remote • Full-Time • Junior • English
AWS
Kali Linux
Splunk
Cybersecurity
Burp Suite
Microsoft Sentinel
Nmap
Wireshark
NCC Group (LSE: NCC) is a global cyber security, risk mitigation, and technical assurance enterprise headquartered in Manchester, United Kingdom. Founded in 1999, the publicly traded company employs over 2,000 security experts across the UK, Europe, North America, and Asia-Pacific.
HQ: Manchester, United States • Transportation & Logistics • Ride Hailing • Cybersecurity • 51-200 employees • Est. 1999
≈ $102k – $226k per year (Estimated) • Manchester • Remote • Full-Time
Haystack empowers engineering teams with real-time insights into their team’s performance, helping you remove bottlenecks and accelerate delivery.
Decision Intelligence • Project Management • Data Visualization • 11-50 employees
≈ $90k – $219k per year (Estimated) • Senior • 6+ years exp • Remote (Europe, Asia) • Full-Time • Senior
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
React.js
DevOps
Docker
GCP
Git
Management
Jira
≈ $89k – $218k per year (Estimated) • Senior • 6+ years exp • Remote (Europe, Asia) • Full-Time • Senior
TypeScript
JavaScript
Databases
PostgreSQL
DevOps
Docker
GCP
Git
Management
Jira
