Jobs in London

Contract Software Engineer

Contract Software Engineer | Up to £400 per day | Outside IR35 | London/Hybrid or Remote | 3 Month Rolling   About the Role:   We are seeking a Mid to Senior Software Engineer to join a fast-paced, dynamic project. This role offers hands-on involvement across the full development lifecycle, from requirements...

Langham Recruitment

London

Principal Platform Engineer

Principal Platform Engineer, Observability £150,000–170,000 + bonus Join a high-performance trading platform and take ownership of their Observability and SRE evolution. You’ll work at scale, shaping data ingestion and monitoring pipelines that handle huge real-time trading flows. What you’ll work with Python or Go in a DevOps/SRE setting Linux, Kubernetes,...

Ncounter Limited

London

Blockchain Architect - Contract - UK (Primarily REMOTE)

Role: Blockchain Architect Type: Contract (6 Months) Location: UK, Hybrid Working (Primarily remote, Client Travel always agreed in advance if needed and cost's covered by client) Payrate: £435 - £522 per day Inside IR35 on UMB £327 - £393 per day on PAYE Description: Core Objective: Design and build the...

Randstad Technologies Recruitment

London

Contract Solidity Developer

Contract Solidity Developer Location: 5 Days p/w in London Duration: 12 Month Contract IR35: Outside IR35 Rate: £500p/d - £700p/dOpus is partnering with a leading investment bank on an exciting new venture, which is due to kick off in 2026.They're building a Digital Assets Division focused on Blockchain, Ethereum, and...

Opus Recruitment Solutions Ltd

London

Blockchain Architect - Contract - UK Primarily REMOTE

Role: Blockchain ArchitectType:Contract (6 Months)Location: UK, Hybrid Working (Primarily remote, Client Travel always agreed in advance if needed and cost's covered by client)Payrate: £435 - £522 per day Inside IR35 on UMB£327 - £393 per day on PAYE Description: Core Objective: Design and build the architecture for a blockchain-based digital...

Randstad Technologies

London

Blockchain Architect - Contract - UK (Primarily REMOTE)

Role: Blockchain ArchitectType: Contract (6 Months)Location: UK, Hybrid Working (Primarily remote, Client Travel always agreed in advance if needed and cost's covered by client)Payrate: £435 - £522 per day Inside IR35 on UMB£327 - £393 per day on PAYE Description: Core Objective: Design and build the architecture for a blockchain-based...

Randstad Digital

London

Blockchain Architect - Contract - UK (Primarily REMOTE)

Role: Blockchain ArchitectType: Contract (6 Months)Location: UK, Hybrid Working (Primarily remote, Client Travel always agreed in advance if needed and cost's covered by client)Payrate: £435 - £522 per day Inside IR35 on UMB£327 - £393 per day on PAYE Description: Core Objective: Design and build the architecture for a blockchain-based...

Randstad Digital Careers

London

Blockchain Engineer

Blockchain Engineer 🌍 Location: Central London 📆 Duration: 12-18 Months Contract with the option to go permanent after. ✅ IR35: Outside IR35 💰 Rate: £500pd - £700pd - (Open depending on experience) Opus is partnering with a leading investment bank on an exciting new venture, which is due to kick...

Opus Recruitment Solutions

London

Head of Protocol Liquidity - Defi / Lending

Head of Protocol Liquidity - DeFi / Lending Protocol / Capital Markets Remote | Full-Time Contractor - TradFi turned Defi Guru - Crypto natives please :-) A pioneering DeFi protocol is seeking a Head of Capital Formation to drive growth and shape the future of decentralized fixed-income markets. The team...

Austin Werner

London

Product Development Manager - Blockchain/Digital Assets/Payments

Job Title Product Development Manager - Blockchain/Digital Assets/Payments Location London, UK Job Description At BNY, our culture allows us to run our company better and enables employees’ growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of...

BNY

London

MEV Defi Quant Researcher/Trader (300K - 800k)

▸ Company: One of the top research based Crypto/TradFi HFTs in Europe is rapidly expanding their Defi strategies. They are currently Top 3 on major crypto exchanges and are seeking a qualified Defi Researcher/Trader to scale their position.Overview▸ Overview: Looking for Defi Quant Researchers/Traders who have experience building and expanding...

Fionics

London

Founding Blockchain Data Engineer for Real-Time Analytics

A blockchain technology firm in London is seeking a founding blockchain data engineer to build and architect infrastructure for their data platform. Key responsibilities include designing multi-chain indexing systems, managing complex data pipelines, and ensuring data quality in this innovative environment. Candidates should have production experience in blockchain data infrastructure....

jobs.jerseyeveningpost.com-job boards

London

Head of Protocol Liquidity - Defi / Lending...

Job Description Head of Protocol Liquidity - DeFi / Lending Protocol / Capital Markets Remote | Full-Time Contractor - TradFi turned Defi Guru - Crypto natives please :-) A pioneering DeFi protocol is seeking a Head of Capital Formation to drive growth and shape the future of decentralized fixed-income markets....

Austin Werner

London

UNPAID VOLUNTEER - PR & Media Officer UNPAID VOLUNTEER - PR & Media Officer Blockchain & Climat[...]

The PR & Media Officer plays a hands‑on role within BCI’s communications team, supporting media outreach, storytelling, and the day‑to‑day implementation of BCI’s communications strategy. This role is ideal for someone with strong writing skills, a nose for news, and a desire to build meaningful media relationships in the climate...

Seeds Renewables

London

Python Software Engineer - Web3, DeFi

Senior Python Software Engineer - Web3, DeFi ABOUT CLEARMATICSClearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today. ABOUT CLEARMATICSClearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures...

Clearmatics

London