HQ: Palo Alto, United States · AI for Science · Est. 2023 · Startup · Trust B · Hiring 8
Harmonic is a research laboratory building mathematical superintelligence with verifiable reasoning at its core. Its Aristotle system generates proofs in the Lean formal language so that every claim it makes can be checked mechanically rather than trusted, an approach aimed directly at eliminating hallucination in reasoning. The company was co-founded by the Robinhood founder Vlad Tenev and reached gold medal level performance on international mathematical olympiad problems; its long term aim is a system whose mathematical output requires no human verification.
No named decision-maker yet.
No careers mailbox known
≈ $92k – $179k per year (Estimated) · Senior · 5+ years exp · In office (London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
C++
Python
AI/ML
Reinforcement Learning
DevOps
GCP
Kubernetes
Azure
AWS
HQ: London, United Kingdom · IT Consulting & Digital Transformation · Est. 2015 · Hiring 5
Tecknuovo builds technology alongside your teams, transferring skills and capability so you own your systems, decisions, and future.
No named decision-maker yet.
Careers mailbox is known
≈ $72k – $175k per year (Estimated) · In office (London, United Kingdom) · Full-Time
Node JS
TypeScript
Python
JavaScript
Frontend
React.js
DevOps
Azure
CI/CD
AWS
Management
Agile
+1
HQ: San Francisco, United States · Software · Recruiting Software & ATS · 1001-5000 employees · Est. 2018 · Startup · Trust C · Hiring 67, 3 new
Headquartered in San Francisco, California, Ashby is a provider of an all-in-one talent acquisition and recruiting platform. The enterprise offers a unified suite of HR technology tools - combining applicant tracking (ATS), candidate relationship management (CRM), automated interview scheduling, and advanced hiring analytics - enhanced by embedded AI features. By streamlining talent operations, eliminating workflow friction, and delivering actionable data insights, the organization enables high-growth companies and global enterprises to optimize their recruitment pipelines and make efficient, high-quality hiring decisions.
No named decision-maker yet.
No careers mailbox known
$201k – $327k per year · Equity · Staff+ · Manchester · London · Cambridge · Remote (United Kingdom) · Full-Time · Staff
SQL
Swift
Kotlin
Node JS
TypeScript
JavaScript
Databases
Snowflake
Redis
PostgreSQL
AI/ML
OpenAI Codex
Cursor
Claude
Frontend
GraphQL
React.js
DevOps
CI/CD
Windows
Management
Linear
Notion
Agile
+11
$152k – $198k per year · Equity · Senior · Manchester · London · Cambridge · Remote (United Kingdom) · Full-Time · Senior
SQL
Swift
Kotlin
Node JS
TypeScript
JavaScript
Databases
Snowflake
Redis
PostgreSQL
AI/ML
OpenAI Codex
Cursor
Claude
Frontend
GraphQL
React.js
DevOps
CI/CD
Windows
Management
Linear
Notion
Agile
+11
HQ: Cambridge, United Kingdom · Telemedicine & Virtual Care · Medical AI · Est. 2022 · Likely startup · Hiring 18, 16 new
About Heim We are a team of technologists, clinicians and operators who care deeply about rooting clinical care back into our communities View open positions Meet the team Our mission is to expand access to healthcare by bringing it home.
No named decision-maker yet.
Careers mailbox is known
$126k – $160k per year · Senior · 6+ years exp · In office (London, United Kingdom) · Senior
TypeScript
AI/ML
Agentic Workflows
Cursor
Claude Code
Copilot
AI Agents
DevOps
CI/CD
GCP
MedTech
FHIR
+1
HQ: London, United Kingdom · Stock Exchanges & Market Infrastructure · Financial Software & Embedded Finance · Est. 2016 · Trust A · Hiring 6, 1 new
Headquartered in London, United Kingdom, TransFICC is a financial technology firm specializing in eTrading infrastructure and low-latency API connectivity for fixed income and derivatives markets. The company provides a unified platform ("One API") that connects banks, asset managers, and brokers to global trading venues across Rates, Credit, Interest Rate Swaps (IRS), Repo, and Municipal bonds. By combining hosted co-location infrastructure with automated execution workflows and normalized market data feeds, it enables financial institutions to lower technology costs, reduce execution latency, and scale multi-venue trading operations.
No named decision-maker yet.
Careers mailbox is known
up to $80k per year · Junior · London · Remote (United Kingdom) · Full-Time · Junior
Java
DevOps
Trunk-Based Development
CI/CD
up to $120k per year · London · Remote (United Kingdom) · Full-Time
Java
DevOps
Trunk-Based Development
CI/CD
HQ: London, United Kingdom · Est. 2022 · Startup · Hiring 1
Paace is a social impact company on a mission to motivate people to be more active while supporting local businesses. Paace converts movement into points which can be spent with a range of partners across London.
No named decision-maker yet.
Careers mailbox is known
$93k – $100k per year · Hybrid (London, United Kingdom) · Full-Time
Node JS
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
React.js
Mobile
React Native
HQ: Zug, Switzerland · RegTech, AML & Compliance · Financial Data & Market Intelligence · Est. 2022 · Startup · Trust B · Hiring 3
Built for finance, risk, and operations teams. Range unifies wallets, custodians, and bank accounts, and enforces your policies on every transaction.
No named decision-maker yet.
Careers mailbox is known
$75k – $130k per year · Senior · London · Remote (likely Switzerland) · Full-Time · Senior · Polish
TypeScript
JavaScript
Databases
PostgreSQL
Frontend
React.js
HQ: Palo Alto, United States · AI Research Labs · Foundation Models · LLM & Generative AI · 1001-5000 employees · Est. 2023 · Trust A · Hiring 236, 9 new
xAI is an American artificial intelligence company founded by Elon Musk in 2023 with the stated goal of building models that help humans understand the universe. It develops the Grok family of large language models, distributes them through a consumer assistant, a developer API and deep integration with the X social platform, and adds image and video generation through Grok Imagine. The company runs its own Colossus supercomputer clusters in Memphis, Tennessee, is headquartered in Palo Alto, California, and merged with X Corp in 2025 to combine model development with a large consumer distribution channel.
Elon Musk · Founder & Chief Executive Officer · decision-maker
Toby Pohlen · Co-Founder · founder
Jimmy Ba · Co-Founder · founder
Igor Babuschkin · Co-Founder · founder
No careers mailbox known
$349k per year · In office (London, United Kingdom)
Rust
Go
C++
Databases
ClickHouse
PostgreSQL
AI/ML
Grok
vLLM
SGLang
TensorRT
LLM
DevOps
gRPC
Rest API
Docker
Kubernetes
+6
$142k – $349k per year · Senior · 5+ years exp · In office (London, United Kingdom) · Senior
$142k – $349k per year · In office (London, United Kingdom)
Rust
C++
Python
AI/ML
Reinforcement Learning
DevOps
KVM
QEMU
Windows
HQ: London, United Kingdom · AI Governance & Compliance · AI Research Labs · AI Safety & Alignment · Est. 2023 · Hiring 4, 1 new
The AI Security Institute is the United Kingdom government body that tests advanced artificial intelligence models for risks relevant to national security and public safety. Its researchers run pre deployment evaluations together with frontier laboratories, covering cyber offence capability, chemical and biological uplift, autonomous replication and the robustness of model safeguards. The institute publishes its evaluation methodology and the Inspect open source testing framework, and it funds external alignment research through a dedicated grant programme.
No named decision-maker yet.
No careers mailbox known
≈ $90k – $182k per year (Estimated) · Senior · London · Remote (United Kingdom) · Senior
Python
AI/ML
OpenAI
PyTorch
LLM
Machine Learning
DevOps
SLURM
Kubernetes
CI/CD
AWS
+1
London · Salt Lake City · Livermore · Data Warehouses & Lakehouses · Startup · Hiring 1
Yellowbrick is a SQL data platform built on Kubernetes for enterprise data warehousing, ad-hoc and streaming analytics, AI and BI workloads.
No named decision-maker yet.
Careers mailbox is known
≈ $52k – $120k per year (Estimated) · Junior · 1+ year exp · In office (London, United Kingdom) · Junior
C++
Java
SQL
AI/ML
Claude
Machine Learning
DevOps
Helm
Docker
Linux
Kubernetes
+1
HQ: San Francisco, United States · Cinema · Travel Technology · 201-500 employees · Trust A · Hiring 13
Cloud-based hotel revenue management system and revenue strategy solutions that deliver powerful insights on pricing and demand.
No named decision-maker yet.
Careers mailbox is known
≈ $63k – $135k per year (Estimated) · Staff+ · 7+ years exp · In office (Croatia, Spain, United Kingdom) · Staff
Java
Python
Java
Spring Framework
Spring Cloud
Gradle
Databases
Redis
Apache Kafka
PostgreSQL
AI/ML
Prompt Engineering
Model Context Protocol
Claude Code
Claude
LLM
Frontend
GraphQL
DevOps
OpenTelemetry
Datadog
Amazon EKS
Amazon ECS
Amazon Kinesis
Platform Engineering
Amazon S3
Prometheus
Grafana
IAM
Terraform
AWS
Kubernetes
QA
Sentry
+20
HQ: San Francisco, United States · Operating Systems · Cybersecurity · Commerce · CMS & Digital Experience Platforms · 201-500 employees · Est. 2018 · Startup · Trust A · Hiring 33, 1 new
Sanity is a software company that provides a structured content platform used as a headless content management system for websites, mobile apps and AI applications. Its products include the Content Lake hosted content store, the open-source Sanity Studio editing environment and the GROQ query language, and it serves developer and content teams from offices in San Francisco, London and Oslo, where the company originated. The company is headquartered in San Francisco, California, United States.
No named decision-maker yet.
No careers mailbox known
≈ $90k – $174k per year (Estimated) · Equity · Senior · Hybrid (London, United Kingdom, Oslo, Norway) · Full-Time · Senior
TypeScript
JavaScript
AI/ML
Anthropic
Model Context Protocol
LLM
Frontend
React.js
DevOps
Netlify
Heroku
Vercel
Design
Figma
+2
London · Miami · Higher Education · 51-200 employees · Startup · Hiring 1
Built for higher ed colleges, schools, institutions, and universities, Unibuddy is a scalable recruitment platform that helps you engage more students, increase admissions, and transform marketing efforts.
No named decision-maker yet.
Careers mailbox is known
≈ $65k – $147k per year (Estimated) · Middle · In office (London, United Kingdom) · Full-Time · Middle
Python
Node JS
TypeScript
JavaScript
Python
Flask
Django
Node JS
Nest.JS
Databases
RabbitMQ
Apache Kafka
AI/ML
AI Agents
Frontend
GraphQL
React.js
Mobile
React Native
DevOps
AWS
Amazon Kinesis
+7
HQ: Broomfield, United States · Quantum Science & Computing · Quantum Computing Hardware · 501-1000 employees · Est. 2021 · NASDAQ: QNT · Trust B · Hiring 118, 9 new
Headquartered in Broomfield, Colorado, Quantinuum is a full-stack quantum computing company formed through the merger of Honeywell Quantum Solutions and Cambridge Quantum. The firm develops trapped-ion quantum hardware alongside specialized software platforms, including quantum chemistry engines, compiler toolkits, and quantum-cybersecurity applications.
Brian Sereda · Executive Officer · decision-maker
Waseem Shiraz · Executive Officer · decision-maker
Susan Schwamberger · Executive Officer · decision-maker
Jennifer Strabley · Executive Officer · decision-maker
Careers mailbox is known
$179k – $241k per year · Head+ · 25+ years exp · Hybrid (Broomfield, United States, London, United Kingdom) · Bachelor's Degree · Full-Time · Architect
Backstage
GCP
Azure
CI/CD
AWS
HQ: London, United Kingdom · Commerce · Financial Services · Business & SME Lending · POS Systems · Payment Processing & Gateways · Est. 2019 · Startup · Trust B · Hiring 92, 9 new
Founded in 2019 (originally launched as SaltPay), Teya is a financial technology and payment services company headquartered in London, United Kingdom. The company specializes in merchant payment acquiring, integrated point-of-sale (POS) solutions, and business management tools tailored for small and medium-sized enterprises (SMEs). Its offering includes physical card terminals, online payment gateways, business accounts, customer loyalty software, and revenue-based business financing.
No named decision-maker yet.
No careers mailbox known
≈ $141k – $283k per year (Estimated) · Lead · 8+ years exp · In office (London, United Kingdom) · Full-Time · Principal
Kotlin
Java
Java
Spring Boot
Databases
Apache Kafka
Mobile
Clean Architecture
DevOps
gRPC
Rest API
Docker
Kubernetes
CI/CD
AWS
+3
≈ $46k – $118k per year (Estimated) · Senior · 5+ years exp · Hybrid (Porto, Portugal, London, United Kingdom) · Bachelor's Degree · Full-Time · Senior
Java
PHP
Java
Spring Boot
PHP
Laravel
Databases
Apache Kafka
DevOps
CI/CD
Helm
Kubernetes
AWS
Management
Scrum
Agile
+3
HQ: Manchester, United Kingdom · Custom Software Development · IT Consulting & Digital Transformation · Est. 2016 · Trust B · Hiring 4
A leading technology consultancy that accelerates your journey from idea to impact. We fast-track success, helping you achieve a shorter time to value.
No named decision-maker yet.
Careers mailbox is known
≈ $61k – $148k per year (Estimated) · Hybrid (Manchester, United Kingdom) · Full-Time
C#
JavaScript
SQL
TypeScript
C#
.NET
AI/ML
Cursor
Claude
Copilot
Frontend
Vue.js
Angular
React.js
DevOps
Windows
GCP
Azure
AWS
Management
Agile
+8
HQ: London, United Kingdom · Financial Services · Digital Banks & Neobanks · Est. 2015 · Trust B · Hiring 102, 14 new
Tide is a British fintech company headquartered in London that provides business current accounts, credit, invoicing, accounting tools and company registration services for small and medium-sized businesses. Founded in 2015 and launched in 2017, it serves more than 1.5 million SME members in the UK, India, Germany and France and employs teams across the UK, Bulgaria, India, Serbia, Lithuania, Romania and Germany. Its board hires mobile and software engineers, engineering directors, quality assurance analysts, treasury and finance leads, compliance and policy specialists, member success managers, and inside and telesales executives.
No named decision-maker yet.
Careers mailbox is known
≈ $119k – $219k per year (Estimated) · Staff+ · In office (Berlin, Germany, Bengaluru, Delhi, Hyderabad, India) · Staff
TypeScript
Java
JavaScript
Python
Python
Flask
Java
JOOQ
Spring Boot
Databases
Amazon Aurora
Snowflake
MySQL
Apache Kafka
PostgreSQL
AI/ML
LLM
AI Agents
Frontend
NgRx
Angular
DevOps
Datadog
Amazon EKS
GitHub
Terraform
Docker
Kubernetes
CI/CD
AWS
Cybersecurity
Semgrep
Analytics
Fivetran
Looker
+19
≈ $113k – $208k per year (Estimated) · Staff+ · In office (Berlin, Germany, Bengaluru, Delhi, Hyderabad, India) · Staff
Python
TypeScript
Java
JavaScript
Python
Flask
Java
JOOQ
Spring Boot
Databases
Snowflake
Amazon Aurora
MySQL
Apache Kafka
PostgreSQL
AI/ML
AI Agents
Frontend
NgRx
Angular
DevOps
Datadog
Platform Engineering
GitHub
CI/CD
Amazon EKS
Terraform
Docker
Kubernetes
AWS
Cybersecurity
Semgrep
Analytics
Fivetran
Looker
+19
HQ: London, United Kingdom · AI Agents · 1-10 employees · Est. 2020 · Startup · Trust B · Hiring 5, 1 new
Plain is the AI support stack built for B2B teams. Composable infrastructure that gives you complete flexibility to build a support motion that grows with your business — no-code or all-code.
No named decision-maker yet.
No careers mailbox known
$100k – $140k per year · Hybrid (London, United Kingdom) · Full-Time
PostgreSQL
AI/ML
Cursor
DevOps
Vercel
$120k – $186k per year · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
PostgreSQL
AI/ML
Anthropic
Cursor
OpenAI
RAG
LLM
$120k – $186k per year · Senior · Hybrid (London, United Kingdom) · Full-Time · Senior
HQ: Santa Clara, United States · Databases & DBMS · 501-1000 employees · Est. 2011 · Hiring 16, 5 new
Couchbase develops a distributed NoSQL database combining document storage with a query language. Its architecture supports memory-first performance, mobile synchronisation and edge deployments. Enterprises use it for high-throughput interactive applications.
No named decision-maker yet.
Careers mailbox is known
≈ $59k – $134k per year (Estimated) · Middle · 1+ year exp · Hybrid (Manchester, United Kingdom) · Bachelor's Degree · Middle
Go
Python
Databases
Couchbase
DevOps
OpenTelemetry
Fluent Bit
Fluentd
Prometheus
Kubernetes
CI/CD
CloudFormation
Unix
GitHub Actions
Jenkins
GitHub
Terraform
Docker
Linux
GCP
AWS
+11
HQ: San Francisco, United States · Consumer & Utility Software · Office & Productivity Software · 1001-5000 employees · Est. 2017 · Trust A · Hiring 424
Founded in 2017, Air Apps is a prominent mobile software developer specializing in AI-driven utility, productivity, and personal management applications. Headquartered in San Francisco, California, United States, the enterprise operates a remote-first global team that designs and manages a broad portfolio of digital tools. Through its bundled subscription model and suite of user-friendly mobile solutions, it provides millions of consumers worldwide with streamlined options for daily organization, translation, and task automation.
No named decision-maker yet.
No careers mailbox known
$58k – $72k per year · Senior · 5+ years exp · In office (London, United Kingdom) · Relocation · Full-Time · Senior
Node JS
TypeScript
JavaScript
Databases
Supabase
PostgreSQL
Frontend
GraphQL
Mobile
Clean Architecture
DevOps
Google Cloud Run
AWS Lambda
IAM
Rest API
Git
GCP
Azure
CI/CD
AWS
QA
Jest
+9
