Freelance Blockchain Developers in England
Freelance Blockchain Developers in England
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Sqaleup Inc.
Luton, UK
Specializes in MVPs, SAAS, Web/Mobile Apps & Admin System
14
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Specializes in MVPs, SAAS, Web/Mobile Apps & Admin System
1
WHOTIE! | Browser Game Development
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16
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Workxie Billionaire NFT | Blockchain Development
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13
1
Website Development for BellN Ltd.
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8
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Cross-Platform App Development for Yarddy
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12
Blockchain Developer
(2)
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German Sharabok
Grays, UK
Engineering Dreams Into Reality - Full Stack Developer
6
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Engineering Dreams Into Reality - Full Stack Developer
0
ParallelChain | Mobile Crypto Wallet Development
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17
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Stripe | Cross-Border Payments Development
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37
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JP Morgan | Trading and Analytics Platform Development
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13
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Universities | AI-Powered Resume Platform Design and Development
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10
Blockchain Developer
(1)
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Adeoluwa Adefokun
London, UK
Blockchain & Full-Stack Engineer
9
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Blockchain & Full-Stack Engineer
11
First post here on Contra and I couldn't think of a better way to kick things off than this. Excited to announce. EdenFi is live. It's been a long road but seeing 7,000+ people already in the community makes it worth it. We're building something that makes your financial life simpler and more connected. Still a lot of work ahead, but proud of how far it's come. The app is live. Would love for you to check it out: https://linktr.ee/edenfi_onchain
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WarbleLive – Blockchain-Based Ticketing Infrastructure
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6
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Kaltech Consultancy – Digital Agency Platform
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7
1
Space – NFT Marketplace
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4
Blockchain Developer
(2)
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Aj-juburi Huda
Leicester, UK
Expert Blockchain & NFT Developer 🚀
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Expert Blockchain & NFT Developer 🚀
0
You will get React JS | React Developer | Front End Developer
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12
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Decentralized Marketplace on Ethereum
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7
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Cross-Platform Mobile App with Flutter
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11
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Arnold De Guzman
Birmingham, UK
Brand-first designer. Strategy, identity, and websites.
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Brand-first designer. Strategy, identity, and websites.
0
LYOPAY Brand Guideline
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3
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Cathedral Sessions | Visual Brand Identity
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5
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Battlefront Rebranding
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1
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Experience Laguna Destination Branding
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29
Blockchain Developer
(1)
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Satyawan Singh
Leicester, UK
AI/ML engineer who builds custom models, not wrappers.
New to Contra
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AI/ML engineer who builds custom models, not wrappers.
0
I just launched cargo-vouch, an open-source Rust tool that proves a function can't panic. No tests to write, no annotations to add. Point it at a .rs file, and it builds a Kani proof harness for every function, then checks every input in bounds. Each function comes back with one of four verdicts: 🔴 BUG, with the exact input that triggers the panic 🟡 UNGUARDED, safe except at type extremes like i32::MAX 🟢 VERIFIED, provably panic-free ⏳ INCONCLUSIVE, when it cannot decide Why I built it: AI writes Rust that passes cargo test, then panics on an edge input nobody tried. For example, numbers.iter().sum() looks fine until something hands it [i32::MAX, 1]. I ran it on 11 functions GPT-4o wrote and graded. GPT-4o's own grading got 4 of them wrong: it passed three that overflowed and failed one that was fine. cargo-vouch called all four correctly, with the triggering input for each real panic. The honest limit: it is built for loop-light code. Parsers and loop-heavy functions return INCONCLUSIVE, never a false pass. I would rather say that than oversell it. If you write Rust, I would like your feedback. Repo - https://lnkd.in/eHirVFQq (https://lnkd.in/eHirVFQq)cargo install cargo-vouch #rustlang (https://www.linkedin.com/search/results/all/?keywords=%23rustlang&origin=HASH_TAG_FROM_FEED) #opensource (https://www.linkedin.com/search/results/all/?keywords=%23opensource&origin=HASH_TAG_FROM_FEED) #formalverification (https://www.linkedin.com/search/results/all/?keywords=%23formalverification&origin=HASH_TAG_FROM_FEED)
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Stigmergic consensus for multi-agent / multi-model systems. A learned, stateful alternative to majority vote and self-consistency: agents deposit weighted signals into a shared pool, a short truth-discovery loop converges on consensus, and cross-run pheromone memory teaches the swarm which agents to trust. Pure Python, zero dependencies, provider-agnostic.
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AI/ML Engineering Custom Models, Agents & Systems
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3
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PRAXIS is my MSc dissertation project at the University of Leicester: an end-to-end deep-learning system for voice-based biomarkers, designed and built from scratch. I architected and implemented the full pipeline: a self-supervised speech representation model plus a downstream biomarker system, and contributed multiple novel technical and methodological advances, documented in a 15,000+ word dissertation with full research rigour. What I did: Designed a custom deep-learning architecture for speech/audio (self supervised learning + domain adaptation) Developed several original contributions in [voice-biomarker modelling/representation learning] (kept high-level to protect the method) Built a reproducible, rigorously evaluated pipeline end-to-end: data → model → results
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66
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tec x
London, UK
Tecx All-in-One Service Provider
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Tecx All-in-One Service Provider
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Web development
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6
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Digital marketing
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6
0
Graphics designing
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4
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Pak Cheung
Croft, UK
PakDesign.net: High-impact, building interact web solutions.
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PakDesign.net: High-impact, building interact web solutions.
1
XTM Cryptocurrency Exchange
1
16
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Pacific Hashing Mining Services Platform
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6
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Our Portfolio
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18
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