Tech Jobs in Cardiff

Cardiff jobs in Cardiff hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $172,698/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Cardiff
AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Executive
Networking
Product
Design
Analytics
Support
Enterprise Apps
Quantum

Travelers

travelers.com
The Travelers Companies, Inc. is an American insurance provider headquartered in New York City and founded in 1853. The company offers a comprehensive suite of property and casualty insurance products, including coverage for automobiles, homes, and diverse commercial risks such as workers compensation and general liability. It operates as a major component of the Dow Jones Industrial Average and serves customers through thousands of independent agents and brokers across the United States, Canada, the United Kingdom, and Ireland.
travelers.com • HQ: New York, United States • Risk Management • Financial Services • Insurance • 1001-5000 employees
HQ: New York, United States • Risk Management • Financial Services • Insurance • 1001-5000 employees
$104k – $212k per year (Estimated) • Senior • 5+ years exp • Remote (United Kingdom, United States, Ireland) • Visa sponsorship • Bachelor's Degree • Staff
Python
DevOps
CI/CD
Splunk
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$109k – $245k per year (Estimated) • Lead • 5+ years exp • Remote (United Kingdom, United States, Ireland) • Visa sponsorship • Bachelor's Degree • Staff
C#
Python
SQL
TypeScript
JavaScript
Databases
Amazon DocumentDB
MongoDB
AI/ML
AI Agents
Claude
LangGraph
LLM
LangChain
Anthropic
AWS Bedrock AgentCore
Function Calling
OpenAI
OpenAI Agents SDK
Frontend
Angular
DevOps
AWS
CI/CD
GitHub
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GraphAware

graphaware.com
GraphAware specializes in providing graph database technology and consulting services. They focus on leveraging graph-based data models to solve complex data challenges for businesses, enabling enhanced data insights and performance.
graphaware.com • Prague • Data & Analytics • Information Technology • Database Management
Prague • Data & Analytics • Information Technology • Database Management
$80k – $92k per year • Senior • 8+ years expPrague • Remote (United Kingdom) • Full-Time • Senior
Java
Databases
Neo4j
PostgreSQL
Apache Kafka
AI/ML
Knowledge Graph
Mobile
Clean Architecture
DevOps
CI/CD
Docker
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NEC Software Solutions is a UK-based software and IT services provider dedicated to serving public sector organizations. The company develops specialized digital solutions across core domains including local government, healthcare, housing, and public safety. Operating as a subsidiary of Japan's NEC Corporation, it delivers mission-critical applications and software to government agencies, emergency services, and healthcare bodies globally.
necsws.com • Tokyo • Mumbai • Birmingham • Bengaluru • London • Law Enforcement • Government • Software • Est. 1969
Tokyo • Mumbai • Birmingham • Bengaluru • London • Law Enforcement • Government • Software • Est. 1969
$27k – $90k per year (Estimated) • Equity • Senior • Tokyo • Remote (Japan, India, United Kingdom, Ireland) • Relocation • Visa sponsorship • Master's Degree • Senior
Node JS
JavaScript
Node JS
Helmet
Frontend
npm
DevOps
Docker
QA
Cypress
Mocha
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Unmind

unmind.com
Unmind provides a B2B mental health platform that delivers clinically-backed tools and training for organisations. Unmind is based out of London, United Kingdom.
unmind.com • London • Health Care • Mental Health
London • Health Care • Mental Health
2 months ago

Technical Lead

$95k – $190k per year (Estimated) • Lead • London • Remote (United Kingdom) • Visa sponsorship • Bachelor's Degree • Staff
Go
Node JS
Python
SQL
TypeScript
JavaScript
AI/ML
Claude
Claude Code
Frontend
GraphQL
React.js
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Brave

brave.com
Brave Software is an internet browser that is focused in on being privacy-oriented and is combined with its blockchain-based digital advertising platform. The company is based out of San Francisco, California.
brave.com • London • Search Engines • Artificial Intelligence • 501-1000 employees
London • Search Engines • Artificial Intelligence • 501-1000 employees
Open 202 daysVerified live · 2 hours ago 7 months ago

Product Marketing Manager - Brave Search APIs

$150k – $175k per year • Senior • 5+ years exp • Remote (Europe, United States) • Bachelor's Degree • Full-Time • Senior
Go
AI/ML
LLM
RAG
AI Agents
DevOps
GitHub
Rest API
Marketing
HubSpot
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Top 25% payVerified live · 2 hours ago 2 months ago

Sr. Solutions Engineer - API and Developer Platform

$150k – $200k per year • Senior • Remote (Europe, United States) • Full-Time • Senior
JavaScript
Python
Databases
Supabase
AI/ML
LangChain
LlamaIndex
LLM
RAG
Semantic Search
AI Agents
Semantic Search
DevOps
Vercel
GitHub
QA
Postman
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Verified live · 2 hours ago 2 months ago

Sr. Security Engineer

$106k – $215k per year (Estimated) • Senior • 5+ years exp • Remote (United Kingdom) • Internship • Senior
C++
JavaScript
Rust
DevOps
AWS
Git
GitHub
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Circuithub

circuithub.com
CircuitHub Inc. is a Web-based contract manufacturer and design hosting service. The company specializes in rapid, turn-key assembly for prototyping and short-run production of electronic goods.
circuithub.com • Cambridge • Deerfield • PCB & Assembly • Manufacturing • Electronics Manufacturing • 51-200 employees
Cambridge • Deerfield • PCB & Assembly • Manufacturing • Electronics Manufacturing • 51-200 employees
Verified live · 1 day ago 2 months ago

Haskell Engineer

$95k – $176k per year • Remote (United States, United Kingdom) • Full-Time
Haskell
Databases
PostgreSQL
AI/ML
Computer Vision
OpenCV
PyTorch
DevOps
AWS
Robotics
Path Planning
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Percona

percona.com
Percona is a leading global open-source database software, enterprise support, and managed services company co-headquartered in Raleigh, North Carolina, USA, and Durham, UK. Founded in 2006 by Peter Zaitsev and Vadim Tkachenko, the company operates on a B2B open-core, enterprise software support subscription, managed database operations (ExpertOps), and IT consulting model under CEO Ann Schlemmer.
percona.com • HQ: Raleigh, United States • HQ: Durham, United Kingdom • DevOps • Information Technology • Database Management • Est. 2006
HQ: Raleigh, United States • HQ: Durham, United Kingdom • DevOps • Information Technology • Database Management • Est. 2006
Verified live · 8 hours ago 2 months ago

PostgreSQL Database Support Engineer - EMEA (Remote)

Equity • Junior • ParisWarsawLisbonBucharestFrankfurt am Main • Remote (EMEA) • Full-Time
SQL
Databases
PostgreSQL
MariaDB
MySQL
DevOps
Ansible
AWS
Azure
Chef
Configuration Management
GCP
Kubernetes
Puppet
SLI/SLO/SLA
Cybersecurity
Tcpdump
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Allica Bank

allica.bank
Allica Bank is a UK challenger bank and digital fintech platform headquartered in London and Milton Keynes, specifically tailored to serve established small and medium-sized enterprises (SMEs with 5–250 employees). Founded in 2019, the bank offers commercial mortgages, asset finance, business growth loans, rewards current accounts, and high-yield savings products. By combining modern digital banking infrastructure with dedicated local relationship managers, Allica addresses the underserved mid-market business sector across the United Kingdom.
allica.bank • HQ: London, Milton Keynes, United Kingdom • FinTech • Financial Services • Banking • Est. 2019
HQ: London, Milton Keynes, United Kingdom • FinTech • Financial Services • Banking • Est. 2019
2 months ago

Sr. Fullstack Engineer

$89k – $216k per year (Estimated) • Senior • Remote (United Kingdom, India, United States) • Senior
JavaScript
Kotlin
TypeScript
Java
Java
Spring Boot
AI/ML
Copilot
Frontend
React.js
DevOps
AWS
Azure
Azure DevOps
CI/CD
GCP
Rest API
GitHub
Apply
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Qualdoc

qualdoc.com
Qualdoc offers quality documentation review for capital equipment suppliers and integrators in the oil & gas, power, water, microelectronic, chemical, pharma and other EPC EP industries. Supply chain quality management
qualdoc.com • Richmond • Baltimore • Hanover • York • Marietta • Professional Services • Audit • Supply Chain
Richmond • Baltimore • Hanover • York • Marietta • Professional Services • Audit • Supply Chain
$90k per year • Executive • 10+ years exp • Remote (United States, Germany, United Kingdom) • Visa sponsorship • Bachelor's Degree • Internship • Secret • Architect
SolidWorks
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Tiger Analytics

tigeranalytics.com
Tiger Analytics is a global data science and AI consulting firm headquartered in Silicon Valley, California. The company specializes in building customized data engineering, machine learning, and advanced analytics solutions for major enterprises across industries such as financial services, healthcare, retail, and manufacturing. With a global presence spanning the US, India, the UK, and Singapore, it helps Fortune 1000 companies transform complex data into actionable business value at scale.
tigeranalytics.com • HQ: Santa Clara, United States • Data & Analytics • Artificial Intelligence • Data Science • 1001-5000 employees
HQ: Santa Clara, United States • Data & Analytics • Artificial Intelligence • Data Science • 1001-5000 employees
Verified live · 3 hours ago 2 months ago

Gen AI Engineer

$108k – $268k per year (Estimated) • Remote (United States, India, United Kingdom, Canada, Singapore) • Full-Time
Python
Databases
PostgreSQL
pgvector
Pinecone
Weaviate
AI/ML
AWS Bedrock
LLM
RAG
OpenAI
AI Agents
CrewAI
Hallucination
LangChain
Semantic Kernel
TruLens
DevOps
AWS
CI/CD
Vector
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BlueOptima

blueoptima.com
BlueOptima provides a "coding effort analytics" platform for developers and managers. It helps create better quality code. Developers can have visibility over their efforts and can receive feedback on it.
blueoptima.com • Bengaluru • London • Belfast • Cambridge • Information Technology • Data & Analytics • Code Intelligence • 51-200 employees • Est. 2006
Bengaluru • London • Belfast • Cambridge • Information Technology • Data & Analytics • Code Intelligence • 51-200 employees • Est. 2006
2 months ago

Full Stack Developer

$88k – $216k per year (Estimated) • Senior • 5+ years exp • Remote (India, United Kingdom) • Visa sponsorship • Bachelor's Degree • Staff
JavaScript
SQL
TypeScript
Java
Java
Spring Boot
Frontend
Angular
React.js
D3.js
DevOps
CI/CD
Jenkins
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$20k – $58k per year (Estimated) • Equity • Junior • 2+ years expBengaluru • Remote (India, United Kingdom) • Bachelor's Degree • Full-Time • Confidential • Junior
Python
Databases
PostgreSQL
AI/ML
AI Agents
Embeddings
Hallucination
LangChain
LangGraph
LLM
Prompt Engineering
Encoder-Decoder
Fine-tuning
Hugging Face
DevOps
Grafana
Analytics
Tableau
Apply
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Reactive Markets

reactivemarkets.com
Reactive Markets is a financial infrastructure company that provides ultra-low-latency connectivity and execution for institutional trading across FX, equities and other asset classes. Its network connects clients to 35+ liquidity providers with deterministic sub-50 microsecond end-to-end latency, accessible via a single API, UI, or integrations with EMS/OMS/pricing engines. The platform is engineered for bilateral trading, systematic and manual strategies, and offers real-time latency reporting, analytics, global deployment (New York, London, Singapore), and FCA-regulated services for professional market participants.
reactivemarkets.com • London • FinTech • Financial Services • Capital Markets • Est. 2019
London • FinTech • Financial Services • Capital Markets • Est. 2019
Verified live · 6 hours ago 2 months ago

Technical Delivery Analyst

$36k – $82k per year (Estimated) • Junior • 2+ years exp • Remote (United Kingdom) • Visa sponsorship • Full-Time • Junior
C#
C#
.NET
Management
Confluence
Jira
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Verified live · 6 hours ago 2 months ago

Senior C++ Software Engineer

$84k – $159k per year (Estimated) • Senior • 5+ years exp • Remote (United Kingdom) • Visa sponsorship • Full-Time • Senior
C++
Python
C#
C#
.NET
AI/ML
Claude
DevOps
AWS
Git
SLI/SLO/SLA
Apply
Verified live · 6 hours ago 2 months ago

C++ Software Engineer

$61k – $145k per year (Estimated) • Middle • 3+ years exp • Remote (United Kingdom) • Visa sponsorship • Full-Time • Middle
C++
Python
C#
C#
.NET
AI/ML
Claude
DevOps
AWS
Git
SLI/SLO/SLA
Apply
Report

M3 USA

m3usa.com
M3 USA is a healthcare technology and services company headquartered in Fort Washington, Pennsylvania, and established in 2006. The company provides a suite of digital solutions including healthcare market research, physician recruitment through its MDLinx platform, and clinical trial site management. As a subsidiary of the Tokyo-based M3 Inc., it operates globally to connect life science organizations with a network of millions of healthcare professionals across various medical specialties.
m3usa.com • HQ: Fort Washington, United States • Pharmaceuticals • Clinical Research • Market Research • Sales & Marketing • Health Care • Digital Health • Est. 2006
HQ: Fort Washington, United States • Pharmaceuticals • Clinical Research • Market Research • Sales & Marketing • Health Care • Digital Health • Est. 2006
Verified live · 1 hour ago 2 months ago

Data Scientist – Decision Science & Modelling

$86k – $169k per year (Estimated)London • Remote (United Kingdom) • PhD • Full-Time • Middle
Python
C#
C#
.NET
AI/ML
Synthetic Data
Cybersecurity
ISO 27001
Robotics
Digital Twin
Apply
Verified live · 1 hour ago 3 months ago

Data Product Manager

$81k – $183k per year (Estimated)United Kingdom • Remote (United Kingdom) • Full-Time • Senior
SQL
C#
C#
.NET
Apply
Verified live · 1 hour ago 3 months ago

Associate Director, Qualitative Research

$107k – $239k per year (Estimated) • Executive • 5+ years expLondon • Remote (United Kingdom) • Bachelor's Degree • Full-Time • Senior
C#
C#
.NET
Cybersecurity
ISO 27001
Apply
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Axel Springer

axelspringer.de
Axel Springer is a major international media and technology company headquartered in Berlin, known for its portfolio of influential journalism brands such as BILD, WELT, Business Insider, and POLITICO. Beyond its core publishing business, the organization has aggressively transformed into a digital powerhouse, maintaining a significant footprint in online classifieds and marketing services across numerous countries. Its long-term strategy focuses on driving digital growth and innovation, positioning the group as a leading player in the global information and advertising marketplace.
axelspringer.de • Berlin • Munich • New York • London • Düsseldorf • Publishing • Media & Entertainment • News Agencies
Berlin • Munich • New York • London • Düsseldorf • Publishing • Media & Entertainment • News Agencies
$72k – $147k per year (Estimated) • Senior • Berlin • Remote (United States, Germany, United Kingdom) • Relocation • Visa sponsorship • Master's Degree • Full-Time • Senior
Go
Python
DevOps
AWS
Azure
GCP
Apply
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LiveRamp

liveramp.com
LiveRamp is a data collaboration platform headquartered in San Francisco, California, and founded in 2011. The company provides an AI-powered platform for identity resolution, data onboarding, and secure data sharing through its proprietary RampID technology and clean room solutions. It serves a global network of brands, agencies, and publishers across industries such as retail, healthcare, and financial services, operating as a publicly traded entity on the New York Stock Exchange.
liveramp.com • HQ: San Francisco, United States • Marketing Analytics • Identity Management • Cybersecurity • Advertising • Sales & Marketing • Data Integration • Data Governance • Data & Analytics • 501-1000 employees • Est. 2011
HQ: San Francisco, United States • Marketing Analytics • Identity Management • Cybersecurity • Advertising • Sales & Marketing • Data Integration • Data Governance • Data & Analytics • 501-1000 employees • Est. 2011
2 months ago

Backend Engineer

$88k – $215k per year (Estimated) • Senior • 5+ years exp • Remote (United States, United Kingdom, Australia, Pakistan) • Visa sponsorship • Bachelor's Degree • Senior
Java
Databases
Apache Kafka
AI/ML
Spark
DevOps
AWS
Azure
GCP
Rest API
Apply
Report

Tekion

tekion.com
Tekion is an end-to-end, AI-native automotive retail platform that unifies dealership operations - DMS, CRM, digital retail, service, payments and analytics - on a single cloud-based operating system. Tekion powers 3,000+ dealerships and has processed $43B+ in transactions.
tekion.com • HQ: Pleasanton, United States • Software • Artificial Intelligence • Commerce • Customer Relationship Management (CRM) • 1001-5000 employees • Est. 2016
HQ: Pleasanton, United States • Software • Artificial Intelligence • Commerce • Customer Relationship Management (CRM) • 1001-5000 employees • Est. 2016
Verified live · 7 hours ago 2 months ago

Senior Staff Product Manager - Transformation

$112k – $208k per year (Estimated) • Equity • Staff+ • Remote (United Kingdom) • Full-Time • Staff
Apply
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Chattermill

chattermill.com
Chattermill is the AI-native customer intelligence platform that unifies fragmented feedback, support, reviews and social data to proactively surface the insights you need to act on first.
chattermill.com • London • Ride Hailing • Artificial Intelligence • Data & Analytics
London • Ride Hailing • Artificial Intelligence • Data & Analytics
Verified live · 10 hours ago 2 months ago

Senior Machine Learning Engineer

$98k – $200k per year (Estimated) • Senior • Remote (United Kingdom) • Master's Degree • Full-Time • Senior
DeepSpeed
Embeddings
Fine-tuning
LLM
LoRA
PyTorch
Reranking
Semantic Search
Sentiment Analysis
vLLM
PEFT
Semantic Search
AI Agents
Reinforcement Learning
Apply
Verified live · 10 hours ago 3 months ago

Data Scientist

$92k – $180k per year (Estimated) • Equity • Remote (United Kingdom) • Master's Degree • Full-Time
Embeddings
Fine-tuning
LLM
LoRA
NLP
PyTorch
Reranking
Semantic Search
Sentiment Analysis
PEFT
Semantic Search
AI Agents
Apply
Open 145 daysVerified live · 10 hours ago 5 months ago

Senior Machine Learning Scientist

$98k – $200k per year (Estimated) • Senior • Remote (United Kingdom) • Master's Degree • Full-Time • Senior
DeepSpeed
Embeddings
Fine-tuning
LLM
LoRA
PyTorch
Reranking
Semantic Search
Sentiment Analysis
vLLM
PEFT
Semantic Search
AI Agents
Reinforcement Learning
Apply
Report

Proton

proton.ai
Proton is the AI industry cloud platform built just for distributors. Automate orders, enrich your catalog, grow eCommerce carts, and find sales opportunities.
proton.ai • Cambridge • Data & Analytics • Artificial Intelligence • Cloud Computing
Cambridge • Data & Analytics • Artificial Intelligence • Cloud Computing
Verified live · 3 hours ago 2 months ago

Senior Data Engineer (AI-Native) — Data Layer

Senior • 7+ years exp • Remote (LATAM, Europe) • Senior
SQL
AI/ML
Claude
Claude Code
Cursor
AI Agents
OpenAI Codex
Analytics
ETL/ELT
Apply
Report

The Athletic

theathletic.com
The Athletic is a subscription-based sports news website that provides in-depth coverage of major professional sports leagues, including the NFL, MLB, NBA, NHL, and more. The company's goal is to provide fans with a more comprehensive and engaging sports experience than traditional media outlets. The Athletic was founded in 2016 and has quickly become one of the most popular sports news websites in the world.
theathletic.com • London • Manchester • New York • News Agencies • Sports • Sports Media
London • Manchester • New York • News Agencies • Sports • Sports Media
2 months ago

Devops Engineer (UK)

$29k – $113k per year (Estimated) • Junior • 2+ years expLondon • Remote (United Kingdom) • Full-Time • Junior
AWS
AWS Lambda
CI/CD
Cloudflare
Fastly
Terraform
Amazon ECS
Amazon S3
IAM
Apply
2 months ago

Devops Engineer (UK)

$29k – $113k per year (Estimated) • Junior • 2+ years expUnited Kingdom • Remote (United Kingdom) • Full-Time • Junior
AWS
AWS Lambda
CI/CD
Cloudflare
Fastly
Terraform
Amazon ECS
Amazon S3
IAM
Apply
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Dalet

dalet.com
Dalet is a Paris software company founded in 1990 and specialised in media asset management for broadcasters. Its platforms orchestrate news production, archives, workflow automation and content distribution for television and radio groups. The company works with public broadcasters and media organisations on every continent.
dalet.com • HQ: Paris, France • Sports Media • Media & Entertainment • Professional Services • 51-200 employees • Est. 1990
HQ: Paris, France • Sports Media • Media & Entertainment • Professional Services • 51-200 employees • Est. 1990
Verified live · 1 day ago 2 months ago

Senior Product Designer

$84k – $148k per year (Estimated) • Senior • London • Remote (United Kingdom) • Full-Time • Senior
Figma
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Tech Jobs in Cardiff
Frequently asked questions
How many Cardiff jobs in Cardiff are available on Alion?
There are currently 54 active listings from 14 hiring companies on Alion, refreshed daily.
What salary do Cardiff jobs in Cardiff pay?
The average salary is around $172,698 per year based on the current listings.
Are remote options available for Cardiff jobs in Cardiff?
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 Cardiff jobs in Cardiff?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.