Freelancers using AWS in London
Freelancers using AWS in London
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Rania Benotman
pro
London, UK
Founder · Full-Stack & AI Engineer · 15+ Projects
$1k+
Earned
1x
Hired
5.0
Rating
46
Followers
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Founder · Full-Stack & AI Engineer · 15+ Projects
2
Kinder Enterprise Campaign — PHP · TailwindCSS · AWS
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3
5
Excited to share some of the backend work I've been doing lately with Supabase! 🚀 Here's a look at what went into building a production-ready backend from scratch: 🗄️ Database Schema Design Designed a relational schema with multiple interconnected tables: profiles, notes, reminders, conflicts, and a dedicated user_keys table for encryption key management. Every table has proper foreign key relationships, timestamps, and nullable/non-nullable constraints enforced at the DB level. 🔒 Row Level Security (RLS) Every single table has RLS enabled with two policies: users can only access their own rows, and anonymous access is blocked entirely. No exceptions. Security is enforced at the database layer, not just the application layer. 🔑 Auth & Email Flows Set up Supabase Auth with email + OAuth support, including full PKCE flow for secure token exchange. Configured deep link redirects for email confirmation and password reset flows, all tested end to end. ⚡ Edge Functions Built and deployed multiple Supabase Edge Functions handling AI processing pipelines, including JWT validation at the top of every function before any processing begins. The OpenAI API key lives exclusively in Supabase secrets, never in the app or any config file. 🔄 Merge Pipeline Built a follow-up note merge pipeline as an Edge Function. New facts are appended to existing profiles, duplicates are detected and skipped, conflicts are logged, and resolved reminders are handled gracefully. 📦 Migrations All schema changes go through versioned migration files under source control. No manual dashboard changes. CI/CD triggers migrations automatically on merge to main. 🔐 Encryption Architecture Client-side AES-GCM encryption via CryptoKit. Plaintext never sits in the database. Encryption keys are stored in a dedicated RLS-scoped table, fetched after login, and held in memory only for the session duration. Still a lot more to share about this project. Excited to talk about it publicly when it launches! 👀
5
5
1.3K
2
NeptuneBlue AI SaaS — RAG · Multi-Tenant · FastAPI
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15
3
Nava University — WordPress · Elementor · Figma
3
6
AWS
(1)
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Nazar Mysholivskyi
London, UK
SaaS & AI Product Development & Design | Startups, MVP, SMBs
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SaaS & AI Product Development & Design | Startups, MVP, SMBs
2
AI Mental Health Assistant app
1
2
20
1
Martech AI Lead Management platform
1
1
9
1
SaaS Multi Tenancy Resource Management platform
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1
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AWS
(1)
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Gopinath Parimi
London, UK
22 Yrs Java/React/Angular/Python
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22 Yrs Java/React/Angular/Python
0
Software Architecture for Healthcare App
0
1
0
16% growth in online sales for a telco
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7
0
Full-stack Development for E-commerce Website
0
1
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AWS
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Neil Seymour
London, UK
Cloud Infrastructure Engineer · AWS · Kubernetes · Docker
New to Contra
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Cloud Infrastructure Engineer · AWS · Kubernetes · Docker
0
Production Helm Chart — Kubernetes Deployment A production-grade Helm chart managing a multi-component application on Kubernetes. Includes separate server and worker deployments, HPA and PodDisruptionBudgets for resilience, NetworkPolicies for pod-level traffic control, a pre-deploy migration job, ingress with TLS, and a PostgreSQL dependency. Structured with separate values files for local dev and production environments.
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35
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Cloud Infrastructure — AWS, EKS & CI/CD Pipeline Architecture diagram representing the infrastructure stack I design and manage for clients. Covers a full CI/CD pipeline (GitHub Actions → Docker multi-arch build → Helm deploy), an Amazon EKS cluster with production-hardened pods (HPA, PodDisruptionBudgets, NetworkPolicies), supporting AWS services (RDS, S3, IAM), and observability via Prometheus and OpenTelemetry.
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Preview Environment System · CI-Driven · Full Stack Automated preview environment system triggered by CI pipelines. On every PR tagged for preview, a GitHub Actions pipeline builds and pushes a branch-tagged Docker image, which triggers a Northflank webhook to instantiate a full-stack environment from a template — server, worker, PostgreSQL, migrations, and a unique subdomain URL. Environments are completely isolated per PR with no shared state, spin up in minutes, and are automatically destroyed when the PR is closed or merged. Production releases follow the same pipeline on merge to master, using Helm atomic upgrades with zero-downtime rolling updates.
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Multi-Arch Docker Pipeline — GitHub Actions · GHCR CI/CD pipeline building multi-architecture Docker images (linux/amd64 + linux/arm64) via GitHub Actions and CircleCI. Uses Docker Buildx with QEMU emulation, multi-stage Dockerfiles for minimal production images, and automatic tagging by commit SHA, branch, and latest. Images are published to GitHub Container Registry (GHCR) with a multi-arch manifest. Deployments use Helm with atomic upgrades and automatic rollback, targeting both ephemeral preview environments and production EKS clusters.
0
38
AWS
(2)
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Osman Melih Tolunay
London, UK
Full Stack Web & Mobile Developer
$5k+
Earned
1x
Hired
1
Followers
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Full Stack Web & Mobile Developer
0
TeamupAI
0
9
0
Pepapp Backend Development
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21
0
getitAI Sales Experts // Personalized Video Consultations
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12
0
Software Developer
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12
AWS
(1)
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uzair sufi
London, UK
Designing and building seamless web experiences.
New to Contra
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Designing and building seamless web experiences.
0
LuxeLocker — Tackxel case study
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0
0
Lexa — Tackxel case study
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0
1
Lexa — AI Legal Assistant Chatbot Lexa is Pakistan's first AI-powered legal assistant, built to provide lawyers and law students with instant legal guidance 24/7. Its core chatbot uses AI to simplify complex legal queries, offering quick access to statutes, case laws, and over 2.5 lac judgments. Beyond chat, the platform supports legal drafting templates, MCQ practice for the GAT exam, and detailed judgment analysis — making legal research faster, more accurate, and accessible anytime, anywhere.
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Thrill Pay — Buy Now, Pay Later App Thrill Pay is a Buy Now, Pay Later application that integrates directly with your banking app. It checks your credit score to determine whether you're eligible for BNPL purchases, then lets you buy a range of gift cards on flexible payment terms. I led the UI/UX research and handled the front-end development for the project.
1
20
AWS
(1)
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Mark Dunbavan
pro
London, UK
A full-stack lead developer with over 10 years of experience
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A full-stack lead developer with over 10 years of experience
0
Cubitts Eyewear Product Page Management
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1
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BRiMM Shopify ecom marketplace build
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1
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Lavenham Jackets headless ecom site
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2
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Leeds Arts University build
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2
AWS
(1)
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Marcin Wiatr
London, UK
Senior Full-Stack Dev | AI Products | Node/React/LLMs
New to Contra
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Senior Full-Stack Dev | AI Products | Node/React/LLMs
1
AI Workforce - Multi-Agent Platform | LLM Orchestration
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1
Qandai - AI Knowledge Automation | RAG & Vector Search
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0
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Deep-Tech Agency Hero Section | Motion & Interactivity
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Solar Energy Solutions Website | UI/UX & Development
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0
AWS
(2)
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