Senior developer specializing in Smart Contracts and Next.js

3,500
ETH, DAI, USDT
+53
9 days (till Jul 24th, 2026)

## Technical Co-Founder / Founding Engineer — MilePact

 

MilePact is building a freelance marketplace where trust is *contract-grade from day one*. Most platforms start with profiles and messaging; we’re starting with the hardest part: **making client–freelancer work safer using escrow-backed agreements, clear delivery states, and reliable payment flows**.

 

### What we’re building

- **Smart-contract escrow agreements**

- Client & freelancer dashboards

- Job posting and proposal workflow

- Delivery → review → release → refund → dispute **state machine**

- Reputation tied to **completed contract outcomes**

- A marketplace experience that feels safer than informal hiring

 

This is early-stage. We’ll ship the **smallest excellent MVP** that makes money movement and agreement states trustworthy enough for real pilots.

 

### Who we’re looking for

A **founder-minded** engineer who can reason about product correctness and user trust when money is involved, and can:

- Think across **contracts + frontend + UX**

- Prefer **secure, focused systems** over over-engineering

- Find edge cases before users do

- Write tests that protect the business

- Communicate tradeoffs clearly

- Work well with ambiguity and iteration

- Take meaningful ownership (not just tickets)

 

Helpful background:

- Solidity / smart contract engineering (Foundry/Anvil preferred)

- TypeScript

- Next.js/React + Tailwind CSS

- Wallet flows (MetaMask, viem, wagmi)

- Security-minded payments/escrow/marketplace work

- Practical MVP product sense

 

### What you’ll work on

Early tasks may include:

- Hardening escrow contract lifecycle + failure handling

- Improving agreement state transitions

- Building clean local/testnet deployment flow

- Creating safer wallet + transaction UX

- Writing regression tests for money movement and edge cases

- Advising what’s MVP vs. later

- Reviewing architecture as the product grows

 

### How we evaluate fit

A **small paid technical assessment** ($150), designed to be focused:

- **Local project**: Next.js + Tailwind + Foundry

- **6–10 focused hours** within a **12–24 hour** calendar window

- You audit/improve the escrow flow, add tests, and submit via **pull request**

 

We’ll review for:

- Security/fund safety

- Product judgment

- Code quality + testing discipline

- Communication and founder-level prioritization

 

### How to apply

Send a short message with:

- Your relevant experience

- Links (GitHub/portfolio/shipped work)

- Any smart contract / fintech / marketplace / payment-related projects

- Why this problem interests you

 

Keep it simple—we care more about signal than a polished cover letter.

3,500
ETH, DAI, USDT
+53
9 days (till Jul 24th, 2026)

More Jobs like this

Show more
Monitoring Bot – EVM Multi-Chain Transaction Analyzer

We need a reliable monitoring bot that tracks incoming fee transactions (commissions) to one or multiple specified wallets on EVM-compatible blockchains. The bot filters these transactions according to configurable rules, analyzes the buyer wallet and...

Backend Development for Hotel Management System

I am looking for an experienced backend developer to build the backend infrastructure for a Hotel Management System. The frontend application has already been completed, and I need a skilled developer to design, develop, and...

Mobile Game Video Recorder — Remote, Flexible and Ongoing

Are you interested in mobile games and curious about how the mobile gaming industry works? We are building a market intelligence platform used to analyze mobile games, trends and gameplay. We are looking for reliable...

Tech Affiliate Partner (High Commission)

"We are looking for passionate affiliate partners to promote Nexdigi. If you have experience in driving traffic, social media marketing, or influencer outreach, we want you on our team. We offer competitive commissions ranging from...

Technical Talent Acquisition Specialist

Key Responsibilities Manage end-to-end recruitment for technical and IT roles Source candidates using LinkedIn, job boards, referrals, and internal databases Conduct screening interviews to assess technical experience, skills, and motivation Coordinate interviews between candidates and...

graphic Design

Graphic Design for a logo, based on specific style and preferences. 

nati

We are currently seeking a dedicated and detail-oriented individual to join our team as a Time Farm Specialist. In this role, you will be responsible for overseeing the management and cultivation of time resources within...

Need Flutter Developer

We are looking for a skilled Flutter Developer to help us update, refine, and maintain our existing mobile application. This role is focused on implementing targeted fixes, UI/UX tweaks, and functional updates to ensure a...

Lead Generation (APAC) VC, Angel & Crypto Investors

We are looking for an experienced freelancer to research and build a qualified investor pipeline for a cryptocurrency exchange platform seeking strategic investment and partnership opportunities in the APAC region.  The ideal candidate should have...

Seed Investor Needed – GhostContract MVP Built

IMPORTANT: Please do not apply unless you are an investor. Non-investor applications will be declined.   ---   Hello,   First, we apologize to anyone who reached out to us previously on this platform –...

Monitoring Bot – EVM Multi-Chain Transaction Analyzer

We need a reliable monitoring bot that tracks incoming fee transactions (commissions) to one or multiple specified wallets on EVM-compatible blockchains. The bot filters these transactions according to configurable rules, analyzes the buyer wallet and...

Backend Development for Hotel Management System

I am looking for an experienced backend developer to build the backend infrastructure for a Hotel Management System. The frontend application has already been completed, and I need a skilled developer to design, develop, and...

Mobile Game Video Recorder — Remote, Flexible and Ongoing

Are you interested in mobile games and curious about how the mobile gaming industry works? We are building a market intelligence platform used to analyze mobile games, trends and gameplay. We are looking for reliable...

Tech Affiliate Partner (High Commission)

"We are looking for passionate affiliate partners to promote Nexdigi. If you have experience in driving traffic, social media marketing, or influencer outreach, we want you on our team. We offer competitive commissions ranging from...

Technical Talent Acquisition Specialist

Key Responsibilities Manage end-to-end recruitment for technical and IT roles Source candidates using LinkedIn, job boards, referrals, and internal databases Conduct screening interviews to assess technical experience, skills, and motivation Coordinate interviews between candidates and...

graphic Design

Graphic Design for a logo, based on specific style and preferences. 

nati

We are currently seeking a dedicated and detail-oriented individual to join our team as a Time Farm Specialist. In this role, you will be responsible for overseeing the management and cultivation of time resources within...

Need Flutter Developer

We are looking for a skilled Flutter Developer to help us update, refine, and maintain our existing mobile application. This role is focused on implementing targeted fixes, UI/UX tweaks, and functional updates to ensure a...

Lead Generation (APAC) VC, Angel & Crypto Investors

We are looking for an experienced freelancer to research and build a qualified investor pipeline for a cryptocurrency exchange platform seeking strategic investment and partnership opportunities in the APAC region.  The ideal candidate should have...

Seed Investor Needed – GhostContract MVP Built

IMPORTANT: Please do not apply unless you are an investor. Non-investor applications will be declined.   ---   Hello,   First, we apologize to anyone who reached out to us previously on this platform –...