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Antoni Kaminski's avatar
Antoni Kaminski
maxLublin, Poland
Full-Stack Dev | AI Automation Architect | Startup Growth 🚀
$100k+
Earned
15x
Hired
5.0
Rating
269
Followers
Full-Stack Dev | AI Automation Architect | Startup Growth 🚀
Cover image for React/Next.js + Expo Go => BIT.EU
React/Next.js + Expo Go => BIT.EU
10
91
Cover image for React Native Medical Startup App | Supabase
React Native Medical Startup App | Supabase
15
183
Cover image for HR Automation Project | AI Automation | Python
HR Automation Project | AI Automation | Python
13
137
Cover image for AI Digital HealthCare | Full Stack Development
AI Digital HealthCare | Full Stack Development
22
321
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Sharon Olusanya's avatar
Sharon Olusanya
Ibadan, Nigeria
Social Media Strategist for Brands & Professional Businesses
5.0
Rating
268
Followers
Social Media Strategist for Brands & Professional Businesses
Cover image for Pinterest Marketing Strategist | Kids
Pinterest Marketing Strategist | Kids Clothing Campaign Strategic lead for a Pinterest-driven campaign focused on 2026 trends like "Glitter Everywhere" and eco-friendly athleisure. I specialize in vertical Video Pins and high-performing Idea Pins that showcase product durability and "mix-and-match" versatility. By utilizing Pinterest Trends and keyword-rich SEO, I capture parent intent 2–3 months before peak seasons like Back-to-School and Holiday 2026. My goal is to optimize ROAS through Pinterest Performance+ tools, creating shoppable, aesthetic boards that turn pins into purchases and scale brand authority.
2
585
Cover image for Premium Skincare Social Media Strategy
Premium Skincare Social Media Strategy
1
1
Cover image for Skincare Brand Social Media Growth & Content Strategy
Skincare Brand Social Media Growth & Content Strategy
1
5
Cover image for Quiet Luxury Social Media Identity for a Premium Lifestyle Brand
Quiet Luxury Social Media Identity for a Premium Lifestyle Brand
1
7
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Mughira Ahmed's avatar
Mughira Ahmed
proIslamabad, Pakistan
Software & Blockchain Engineer | AI, Web & Mobile Apps
5.0
Rating
7
Followers
Software & Blockchain Engineer | AI, Web & Mobile Apps
Cover image for NiC - Nickel-Backed Blockchain RWA Platform
NiC - Nickel-Backed Blockchain RWA Platform
2
17
Cover image for Blenix - EVM Blockchain & DeFi Ecosystem
Blenix - EVM Blockchain & DeFi Ecosystem
2
16
Cover image for Tap Trade - Local Item Swapping & Bartering App
Tap Trade - Local Item Swapping & Bartering App
1
10
Cover image for FBR Retail POS System
FBR Retail POS System
1
14
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Hritwik Tripathi's avatar
Hritwik Tripathi
Delhi, India
AI Automation | Full-Stack Dev | Web3 | 8× 🏆 Hackathon
5.0
Rating
29
Followers
AI Automation | Full-Stack Dev | Web3 | 8× 🏆 Hackathon
Cover image for TurboEth: Accelerating Web3 Growth with Privacy & Scalability
TurboEth: Accelerating Web3 Growth with Privacy & Scalability
1
8
Cover image for PPD Calculator
PPD Calculator
1
17
Cover image for SnipeMe Clipping Tool Development
SnipeMe Clipping Tool Development
1
9
Cover image for HIE Agency Website Development
HIE Agency Website Development
2
14
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Vinicius Soares's avatar
Vinicius Soares
NiterĂłi, Brazil
CEO at Lumory Studio | Framer & Shopify Expert
5.0
Rating
27
Followers
FRAMER_EXPERT

expert

CEO at Lumory Studio | Framer & Shopify Expert
Cover image for Web3 Hub: A 2-Day Build I
Web3 Hub: A 2-Day Build I built this decentralized community platform in 2 days using Bubble. The Concept A Web3 hub for creators to share exclusive content with supporters in private communities. Business Model Using Smart Contracts, the platform automates revenue-share, sending funds to creators while securing a platform commission. Secure Auth I developed a custom handshake for verification. While payments have gas fees, authentication is 100% free for instant access. Testing Seeking external validators for the connection flow. Feedback is welcome! Demo: https://gatepass-88553.bubbleapps.io/version-test/ai_sign_in_1 (https://gatepass-88553.bubbleapps.io/version-test/ai_sign_in_1)Video: loom.com/share/972e706c68d445c39531ac156e572586 (https://loom.com/share/972e706c68d445c39531ac156e572586)
8
15
394
Cover image for Requisitos para a ExcelĂŞncia
Requisitos para a ExcelĂŞncia
0
5
Cover image for Ensinando a Palavra
Ensinando a Palavra
0
8
Cover image for Bendito RH Recruitment Website
Bendito RH Recruitment Website
0
5
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Gaurav Bende's avatar
Gaurav Bende
Nagpur, India
## Hi, I’m a Digital & Performance Marketer.
New to Contra
## Hi, I’m a Digital & Performance Marketer.
Cover image for Your Meta Ads aren't necessarily
Your Meta Ads aren't necessarily failing. Your funnel might be. Getting expensive leads from Meta Ads? Before increasing your budget, changing your audience, or launching another campaign, you need to understand where your money is actually being lost. I help businesses analyze and optimize their Meta Ads across the complete funnel: → Campaign structure → Audience & targeting → Ad creatives & messaging → CPM, CTR & CPC → Landing pages & lead forms → Meta Pixel & conversion tracking → CPL & lead quality → Conversion funnel Because a low CPL doesn't always mean a successful campaign. If you're getting: ❌ High CPL ❌ Clicks but no conversions ❌ Poor-quality leads ❌ Increasing ad costs ❌ Inconsistent campaign performance ❌ No clear idea what to optimize I can help identify the bottleneck and create a clear, data-driven optimization plan. Research → Diagnose → Test → Optimize → Scale I'm available on Contra for Meta Ads audits, performance optimization, lead-generation campaigns, and conversion-focused marketing strategy. If your Meta Ads are spending money but not producing the results you expect, let's find out why.
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32
Cover image for Meta Ads Campaign Performance This project
Meta Ads Campaign Performance This project showcases the performance of a Meta Ads campaign I managed for lead generation. I worked on campaign setup, audience targeting, ad creatives, budget management, and ongoing optimization to improve campaign performance and generate relevant leads. The screenshot highlights the actual campaign performance and key metrics from Meta Ads Manager, including reach, impressions, clicks, cost per result, and leads generated. My focus was on continuously analyzing the data and optimizing the campaign to improve lead quality and overall cost efficiency.
0
15
Cover image for Your Meta Ads CPL Is
Your Meta Ads CPL Is High — Don't Change the Audience Yet. One of the first mistakes I see in Meta Ads campaigns is this: CPL increases → marketer changes the audience. But high CPL doesn't automatically mean your targeting is wrong. Before changing the audience, I usually look at the campaign like a funnel: CPM → CTR → CPC → Creative → Lead Quality Here's how I think about it: 1️⃣ CPM is high? The problem could be competition, audience size, placement or the overall auction environment. 2️⃣ CTR is low? Before blaming targeting, look at the creative and hook. If people aren't stopping to engage with the ad, changing the audience may not solve the real problem. 3️⃣ CPC is high? Check the relationship between CPM and CTR. A high CPC can sometimes simply be the result of expensive impressions + weak click-through performance. 4️⃣ CTR is good but CPL is still high? Now I'd look at the landing page, lead form, offer and conversion journey. Getting clicks is not the same as generating leads. 5️⃣ CPL looks good but lead quality is poor? This is where things get interesting. A ₹100 lead isn't necessarily better than a ₹300 lead. If the ₹300 leads actually convert and the ₹100 leads don't, optimizing only for CPL can push the campaign in the wrong direction My rule: Don't optimize the metric. Diagnose the system. Meta Ads performance is rarely about one setting. It's the combination of: Creative + Audience + Offer + Funnel + Tracking + Lead Quality And that's why I don't immediately change targeting whenever CPL goes up. What metric do you check first when your Meta Ads CPL suddenly increases — CPM, CTR, CPC, or lead quality? #PerformanceMarketing #MetaAds #LeadGeneration #DigitalMarketing #FacebookAds
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4
Cover image for This is the of my
This is the of my Real estate client Project which we are currently working on it with a good result .
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6
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Ajay Singh Adhikari's avatar
Ajay Singh Adhikari
Dadri, India
Building high-performance web applications that scale.
New to Contra
Building high-performance web applications that scale.
Cover image for NISHAAN is a decentralized evidence
NISHAAN is a decentralized evidence management system designed to restore trust in the justice system by making digital evidence tamper-proof, verifiable, and anonymous. Problems it solves: 1. Broken chain of custody: Evidence gets altered or mishandled when passed through multiple systems and people. 2. Deepfakes & fake timelines: No reliable way to prove when/where a video was originally recorded. 3. Whistleblower risk: Existing systems can expose identities, discouraging people from reporting crimes. 3. Centralized control risk: Admins in traditional databases can delete or manipulate evidence without trace. Core solution: NISHAAN replaces trust-based systems with cryptographic proof: Stores evidence on IPFS (decentralized storage) Anchors file hashes (CIDs) on Ethereum smart contracts Ensures immutability (evidence cannot be altered) Uses RBAC (Role-Based Access Control) for secure permissions Enables anonymous submissions without identity leaks Preserves original file integrity throughout the legal process Key technical approach Hybrid system: IPFS (files) + Blockchain (proof) Smart contracts enforce strict roles (Admin, Police, Court) “1-click adoption” keeps original file hash intact for whistleblower evidence Client-side EXIF extraction prevents fake/old media submissions Robust Web3 frontend handles wallet/network instability NISHAAN ensures that the exact evidence recorded is provably the same evidence presented in court—without relying on trust, only math.
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Cover image for Nishaan is an AI-powered student grievance
Nishaan is an AI-powered student grievance platform that uses Claude Haiku to automate the classification, sentiment analysis, and prioritization of academic complaints. Built with Next.js 14 and Node.js, it features premium dashboards for campus observability, anonymous two-way messaging, and a transparent public feedback board to ensure institutional accountability. Nishaan supports a multi-role platform integrity. Each role in Nishaan has specific permissions and access levels tailored to their responsibilities: HOD (Head of Department): Manages all grievances within their department, assigns tasks to teachers, escalates unresolved issues to the Director, and has the authority to provision new student and staff accounts. Teacher: Handles and resolves grievances assigned to them by the HOD. They also have the option to be assigned as a Hostel Warden to manage hostel-specific issues. Admin / Director: The DIRECTOR is the super-user with full oversight of the entire campus. They handle final escalations, can override any decision, and have full system-wide administrative powers (like auditing all logs and managing all accounts). Alumni: After graduation, students transition to this read-only role. They can no longer submit new grievances but retain access to their historical records and the public transparency board.
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Cover image for Hot Food is a Full-Stack Food
Hot Food is a Full-Stack Food Delivery Platform featuring a Customer App for menu browsing, cart management, and secure Stripe payments, alongside an Admin Panel for managing food items and tracking orders. It’s built with React, Node.js, and MongoDB, ensuring a fast, secure, and mobile-responsive experience.
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Cover image for Project Title: All Projects (Centralized Portfolio
Project Title: All Projects (Centralized Portfolio & AI Management System) 1. The Problem Developers often struggle with two distinct challenges: Portfolio Management: Keeping track of multiple web projects, their source code, live demos, and technical configurations (like environment variables) in a single, organized place. Interview Preparation: Preparing for technical interviews for specific projects. Explaining the architecture, implementation choices, and challenges of a project you built months ago can be difficult without targeted practice. 2. Solution My project is a premium, centralized management ecosystem that serves as both a professional portfolio and an interactive interview coach. It provides a high-end visual dashboard to showcase your work while integrating a powerful AI Interview Agent (powered by xAI's Grok-beta) that helps you master the technical details of your own creations. 3. Key Features Premium Glassmorphic Dashboard: A sleek, modern UI built with React and Framer Motion, featuring dynamic 3D backgrounds (Three.js) and a high-end aesthetic. Full-Stack Project Management: Securely add, edit, and delete projects via a Supabase backend. Store detailed metadata: Descriptions, Key Features, Tech Stacks (categorized), GitHub links, and Live URLs. Secure Env Storage: A dedicated space to keep your project's environment variables (API keys, etc.) for quick reference. AI Interview Agent (Powered by Grok-beta): Interactive Chat: A mock interviewer that "reads" your project's data and asks rigorous technical questions about your architecture and implementation. Topic Analysis: Automatically generates project-specific questions, hints, and ideal answers to help you prepare for real-world interviews. Advanced Search & Filtering
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