Freelancers in Surabaya City

Freelancers in Surabaya CityFreelancers in Surabaya City

Projects People

proSurabaya, Indonesia

Pitch Deck & Presentation Designer

$1k+: Earned

1x: Hired

5.0: Rating

6: Followers

Pitch Deck & Presentation Designer

Cover image for LedgerRise Seed Pitch Deck

LedgerRise Seed Pitch Deck

1

21

Cover image for NeuralPath AI Pitch Deck

NeuralPath AI Pitch Deck

1

30

Cover image for SOLARVIA Investor Insights Deck

SOLARVIA Investor Insights Deck

1

10

Cover image for Trade Loop Pitch Deck

Trade Loop Pitch Deck

1

12

Aan Ragil Julianko

proSurabaya, Indonesia

Your Reliable Mobile & Web Design Partner 🤝

1x: Hired

5.0: Rating

9: Followers

expert

Your Reliable Mobile & Web Design Partner 🤝

Cover image for Web Design for Regentech

Web Design for Regentech

0

7

Cover image for Figma Landing Page - Design

Figma Landing Page - Design

0

12

Cover image for Framer Landing Page Service

Framer Landing Page Service

0

11

Cover image for AI Asistenku - Web Redesign

AI Asistenku - Web Redesign

0

7

Sidoarjo Regency, Indonesia

Short-Form Video Editor | Turning Footage Into Content

15: Followers

Short-Form Video Editor | Turning Footage Into Content

Cover image for Tips & Trick

0

5

Cover image for Stationary Set Design

Stationary Set Design

2

29

Benefeed Logo & Visual Brand Guidelines + Identity

2

32

Cover image for Social Media Instagram Design Project

Social Media Instagram Design Project

2

16

Michael Hartono

Surabaya, Indonesia

Web & product designer who helped startups got funded.

46: Followers

expert

Web & product designer who helped startups got funded.

Cover image for Otter Now Kiosk Design Project

Otter Now Kiosk Design Project

2

20

Cover image for Covena website rebranding to secure first investments

Covena website rebranding to secure first investments

2

19

Cover image for Helped ZekoLabs in $3M seed funding round led by UOB Ventures

Helped ZekoLabs in $3M seed funding round led by UOB Ventures

1

29

Cover image for Pitch deck for LuminaDEX secured $1M funding led by YBB Capital

Pitch deck for LuminaDEX secured $1M funding led by YBB Capital

1

24

Surabaya, Indonesia

Full-Stack Data Specialist | Automation & Predictive

Full-Stack Data Specialist | Automation & Predictive

Cover image for AI Student Success Intelligence Platform
A

AI Student Success Intelligence Platform A twelve‑module analytics platform analyzed 50,000 learners across six countries to predict dropout, model engagement, and simulate interventions, finding that a composite Student Engagement Index (SEI)—built from Time Commitment, Academic Quality, Platform Activity, and Social Learning—is the strongest predictor of dropout (behavior beats demographics), an ensemble of XGBoost/LightGBM/CatBoost achieved 99.72% AUC and F1 = 0.9522, risk tiers were highly precise (Low Risk = 0.0% dropout; Critical Risk = 99.7%), multi‑dimensional “Full Interventions” produced the largest simulated risk reductions, and correcting a data‑leakage issue (attendance proxy) was essential to preserve model integrity.

0

247

Cover image for Advanced Crypto Market Signal Engine with High Precision SELL

Crypto Market Intelligence & Alpha Signal Engine An end-to-end Colab pipeline ingests market feeds, engineers 43 signals, detects regimes (KMeans/HMM/GMM), models 24‑hour alpha with a Random Forest (ROC‑AUC 0.7714), flags anomalies (Isolation Forest/Autoencoders), and backtests strategies; key findings: the SELL signal is highly precise (only 5.14% of SELLs rose next day), anomalies are often bullish (36.87% up vs 25.49% normal), price‑level context and regime probabilities drive predictions, and the model favors low‑volatility, defensive assets during downturns.

0

193

Cover image for Global Retail Intelligence System: Product

Global Retail Intelligence System: Product Success Prediction and Strategic Market Analysis A multi-stage ML pipeline analyzed 44,888 Adidas SKUs using XGBoost and Random Forest to predict product success, demand trajectories, and stockout risk, finding that subcategory is the dominant success driver (~6× more explanatory than price, discount, or geography), the Success Classifier reached 94.3% accuracy and the Stockout Risk model 0.99 ROC‑AUC, 42.5% of products carry markdowns with deep discounts (≥30%) often eroding margins, 323 high-performing SKUs are under‑distributed and present near‑term expansion opportunities, the Budget tier outperforms Premium/Luxury in conversion to high performers, and 653 SKUs were flagged as high demand with elevated stockout risk requiring urgent replenishment.

0

141

Cover image for AI-Driven Global Smartphone Sales Strategy

AI-Driven Global Smartphone Sales Strategy Optimizer An end-to-end ML project used four years of global sales data and 132,000+ simulations to optimize pricing across 52 countries, identifying the exact product, channel, and price to maximize profit. Key findings: the “Discount Myth”—discounting has almost no effect on volume but erodes margins; switching from blanket 20% discounts to AI‑optimized pricing yields a 15.1% revenue gain (about $73,993 preserved per simulation). The B2B channel is optimal in 90% of markets. The production XGBoost model achieves 99.73% accuracy, and ultra‑premium products (notably the Samsung Neo QLED 8K) consistently generate the highest revenue.

0

137

Rifki Yulian Achmad

Surabaya, Indonesia

Visual Storyteller Specializing in Branding.

9: Followers

Visual Storyteller Specializing in Branding.

BestDough Bakery is a logo rebranding project created to elevate the brand with a timeless and premium visual identity. The custom serif logotype, combined with an integrated wheat icon, symbolizes artisan craftsmanship, quality ingredients, and freshly baked products. Supported by a warm earthy color palette, the new identity delivers a classic bakery aesthetic while remaining clean, memorable, and highly adaptable across both digital and physical brand applications.

2

137

Royal Pickle Indonesia | Logo Concept A logo concept for Royal Pickle Indonesia, a premium pickleball club from Surabaya. The goal was to create an identity that feels prestigious without losing its sporty character. I combined a royal-inspired crest with a custom "R" monogram, while subtly integrating a pickleball paddle and ball into the emblem. The navy and gold color palette helps communicate elegance, confidence, and professionalism. Making the brand feel at home on everything from club apparel and equipment to social media and tournament branding. Simple, timeless, and built to grow with the club.

2

5

247

Montir Golf Logo Design Montir Golf is a specialized service brand dedicated to maintaining and optimizing golf clubs for peak performance. Offering expert solutions such as club replacement, precision adjustments, and comprehensive servicing, Montir Golf ensures that every golfer can play with confidence and consistency. With a focus on craftsmanship and attention to detail, the brand combines technical expertise with a deep understanding of the game, delivering reliable and personalized care for every set of clubs.

1

261

Logo Design of Jumbreg Menul Jumbreg Menul is a brand that offers a traditional delicacy from Lamongan called “jumbreg.” This sweet treat is known for its soft and chewy texture, combined with the rich sweetness of palm sugar. In some variations, it is enhanced with pieces of jackfruit, adding a distinctive aroma and a deeper, more delightful flavor to the overall experience.

0

212

Fatih Al Jabar H M

Surabaya, Indonesia

Full-Stack Dev crafting fast, scalable React & Next.js apps.

New to Contra

Full-Stack Dev crafting fast, scalable React & Next.js apps.

Cover image for Blockwave Studios – High-Fidelity Digital

Blockwave Studios – High-Fidelity Digital Creator Marketplace & Storefront Delivered an end-to-end interactive product demo approved by a gaming creator studio to power their next-generation digital storefront. Transformed complex multi-vendor commerce requirements into a seamless user experience spanning touch-enabled media galleries, dynamic cart/bundle pricing engines, and modular creator payout dashboards.

3

3

172

Cover image for Personal Portfolio & Headless CMS

Personal Portfolio & Headless CMS – High-Performance Next.js Platform A dynamic, full-stack portfolio platform and self-service CMS engineered with Next.js 16, React 19, Prisma, and PostgreSQL. Features zero-REST server actions, instant bilingual localization (EN/ID via next-intl), secure media uploads via Supabase Storage, and a hardened admin dashboard protected by explicit email allowlists. Fully audited for codebase security and scores 99+ on mobile Lighthouse audits.

4

5

269

Cover image for Intan Sari Farm – Full-Stack

Intan Sari Farm – Full-Stack Agri E-Commerce & Multi-Tier Checkout Platform A production-ready e-commerce platform custom-built for an agricultural enterprise, supporting both physical commodities and downloadable digital materials. Engineered with Next.js 16 (App Router), React 19, Prisma, and PostgreSQL. Features multi-tier regional checkout with dynamic real-time courier shipping calculations via API.co.id (http://API.co.id), seamless online payment automation via Midtrans Snap, and transactional emails powered by Resend.

1

110

Cover image for Tracking Application – Production-Grade Job

Tracking Application – Production-Grade Job Application Tracker & SaaS Pipeline A production-grade job tracking web application engineered to replace messy spreadsheets with an automated, 11-stage Kanban pipeline. Built with React 19, Express 5, and Drizzle ORM, featuring zero-friction Google OAuth (officially verified), secure document storage via Cloudflare R2 presigned URLs, and automated background email jobs. Hardened through 90+ automated tests and full-repo security reviews.

1

135

Creativitas Studio

Surabaya, Indonesia

Web Architect building fast sites with Jamstack & AI

New to Contra

Web Architect building fast sites with Jamstack & AI

Cover image for MEDUSA - Pycora Medusa v2.4.6

MEDUSA - Pycora Medusa v2.4.6 - Python Static Site Generator - 2 Second Build I built Pycora Medusa, a Python static site generator that builds 41 files in 0.87s. Download now : https://pycora.axcora.com Features: PAXLoader - finds templates anywhere, plural/singular auto fix Nested content support - all files in content/posts/* included Tags ALL formats - YAML multiline, inline array, comma, single No crash - ChainableUndefined + fallback chain Build time 2s - proven in GitHub Actions Tech: Python, Jinja2, Markdown, YAML, PAX Live: pycora.axcora.com (http://pycora.axcora.com)Code: github.com/mesinkasir/pycora/tree/medusa Engine: ssg.py (http://ssg.py) - 1628 lines Hire me for fast Python SSG, docs, blogs, portfolios. https://contra.com/s/QvbXkYgv-ja-mstack-website-architecture-astro-11ty-jekyll-ssg

0

51

Cover image for Autonomous AI Financial Forensic Auditor

Autonomous AI Financial Forensic Auditor

0

100

Cover image for Next-Gen AI AI-Vision Integration &

Next-Gen AI AI-Vision Integration & Automated Financial Reporting Revolutionizing Scan to Cashflow

0

127

Cover image for JAMSTACK static site generator cyberpunk

JAMSTACK static site generator cyberpunk futuristic concept

0

82