Fullstack Engineer, Thema

Python

£60-80k

React

Docker

CSS

TypeScript

Python

GraphQL

Terraform

D3.js

Next.js

Semantic

REST API

FastAPI

Tailwind CSS

WebGL

Mid and Senior level

London

2-5 days a week in office (Brick Lane, London)

The AI platform that maps any market, instantly

Be an early applicant

The AI platform that maps any market, instantly

1-20 employees

B2BArtificial IntelligenceDeep TechBusiness IntelligenceMachine Learning

Be an early applicant

£60-80k

React

Docker

CSS

TypeScript

Python

GraphQL

Terraform

D3.js

Next.js

Semantic

REST API

FastAPI

Tailwind CSS

WebGL

Mid and Senior level

London

2-5 days a week in office (Brick Lane, London)

1-20 employees

B2BArtificial IntelligenceDeep TechBusiness IntelligenceMachine Learning

Company mission

To be the world leading source for understanding markets.

Job

Company

Role

Who you are

Frontend: 3+ years of TypeScript development in modern web or mobile apps, including React or Next.js
Backend & DevOps: Solid Python skills (type hints, async) and knowledge of Docker, CI, and Infrastructure as Code (e.g., Terraform)
APIs: Skilled at consuming REST/GraphQL services for seamless data integration
Styling & Accessibility: Deep knowledge of CSS, semantic markup, and building accessible interfaces
Code Quality: Proven ability to write clean, testable, and maintainable code with Git version control
Communication & Autonomy: Strong English skills and the ability to manage your own workload effectively
Open source contributions: We value open-source contributions over academic accolades—half our team was discovered through their exceptional open-source work

What the job involves

Build and maintain our web applications
Collaborate with team members and clients to define, scope, and plan new features
Innovate on user interfaces and data visualisations (using tools like D3.js or Three.js)
Contribute to architecture discussions and help shape our engineering roadmap
Develop your skills continuously by learning new techniques, technologies, and methods
Implement best practices in coding, testing, and deployment

Application process

1. Interview with the CEO
2. Interview with the CTO
3. Technical task
4. Lunch with the Founders (Cultural fit)

Salary benchmarks

Our take

Thema is a deep-tech AI company building the foundational infrastructure to understand how the economy is connected.

It does this by processing hundreds of terabytes of data and develops novel embedding techniques to crack the problem of company similarity and track how markets evolve over time.

With backing from top investors, support from the UK government, and partnerships with world-class institutions like Cambridge and Sanford, Thema sure is making a name for itself.

Freddie

Company Specialist at Welcome to the Jungle

Company

Employee endorsements

Intelligent people

"Working with genuine experts in their fields across commercial, AI research and engineering has had a huge impact on me whilst at Thema. It's hugely..."

Browse all endorsements

Funding (2 rounds)

Jun 2024

$1.4m

Grant

Mar 2024

$3.3m

Seed

Total funding: $4.7m

Company benefits

Early-Stage: Join pre-Series A with meaningful equity and amazing opportunity for growth
Real Ownership: Take on core systems and have a tangible impact
Start-of-the-art AI native stack: Work with leading AI researchers, helping to engineer a world-class product with genuine innovation
High-Spec Equipment: We’ll kit you out with a top of the range development laptop, and any tools you need to succeed
Hybrid & Flexible: Work from London & remotely, with quarterly off-sites in different locations (e.g. Lisbon)

Company values

Operate at the Frontier - Build at the edge of what’s possible in AI and engineering
You Ain’t Gonna Need It (YAGNI) - Use what already exists. Only build what’s needed
Unblock Each Other - Step in. Step up. Success is a team sport
No Room for Ego - Decide on merit. The best idea wins - always
Honest Conversations Early - Say it early. Say it straight. Candour clears the path

Company HQ

Spitalfields, London, UK

Leadership

Finn MacCabe

(CEO)

Founded Zero 1, raising £20M+ from FTSE 100 Corporates and VCs. Board Member at Lifted (Series A VC-backed).

Jonathan Lifschutz

(CTO)

Ex-Head of Engineering at msk.ai (exited). MSc in Computer Science & Cambridge University alumni.

Dimo Angelov

(Chief Data Scientist)

PhD in AI, ex-Senior Data Scientist for the Canadian Government. Creator of Top2Vec (https://github.com/ddangelov/Top2Vec) 3k+ GitHub stars.

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