Software Engineer Intern - Ledger Enterprise Services (f/m)
Status
Paris, France
Full time
Hybrid
Compensation is not specified
Role
Software Engineer
Description
Founded in 2014, Ledger is a global leader in digital assets and Web3 technology. Headquartered in Paris with offices in various countries, Ledger has a dedicated team working on secure and innovative solutions for digital asset management.
We are offering a 6-month Software Engineering internship at Ledger focusing on developing the Ledger Enterprise Device Endorsement Tool. The main goal of this role is to design and implement a B2B device endorsement tool to ensure secure device endorsements.
Candidates with an interest in Web3 and hardware wallets will thrive in our dynamic environment. The internship starts in February 2025 and is ideal for final-year students.
Your responsibilities will include:
- Implementing advanced security features to enhance device security during the endorsement process
- Designing a reliable system for device validation
- Developing tests to ensure the tool meets functional, security, and product requirements
- Creating detailed documentation for future reference and scalability
- Enhancing the user interface for improved usability
- Contributing to other ongoing projects within the team
Requirements:
- Proficiency in embedded software development, RUST, and Python
- Familiarity with the Linux ecosystem
- Knowledge of basic cryptographic algorithms would be beneficial
- Strong interest in cryptography, security, and software product development
- Previous internship experience with coding in RUST and Python is preferred
- Proficiency in English language
What you'll gain:
- Flexibility with possibilities for partial remote work
- Social interactions through frequent events, and snacks
- Transportation reimbursements
- Lunch vouchers
- Vacation days, in addition to national holidays
- Competitive monthly salary based on educational level
At Ledger, we are an equal-opportunity employer welcoming candidates regardless of gender, ethnicity, religion, sexual orientation, social status, disability, or age.
Skills Required
Ledger
Website
www.ledger.comCompany size
Not specified
Location
United States
Description
Not specified
Status
Tatyana Khrustaleva
Product Lead
Moscow, Russia
Moscow, Russia
Full time
Remote
Marketing Automation Cloud / CDP | Top-Tier B2B SaaS | Remote-First
At Hire5, we partner with ambitious tech companies building category-defining products.
We’re hiring a Product Lead (Analytics) for a leading Marketing Automation Cloud and Customer Data Platform (CDP) serving major brands across the CIS region. The platform helps large and mid-sized companies unify and activate customer data to drive revenue through personalized, data-driven marketing.
This is not another dashboard tool. It’s an expert system designed to move CMOs from business goals → insights → actions → measurable growth.
About the Product
The Analytics team is building a product where a CMO logs in and immediately sees:
What’s happening with revenue
How marketing impacts it
Which levers to pull to drive growth
Core areas:
Business metric decomposition
OKR-style goal tracking
Revenue attribution
AI-powered assistant with automated analysis & recommendations
Funnels
Loyalty analytics
Comparable market references include:
Triple Whale
Klaviyo (Analytics)
Rebuy
LoyaltyLion
Amplitude
Role & Team
The Product Lead (Analytics):
Owns all products within the Analytics team (not a single feature).
Leads a team of ~8–10 people (engineering + design).
Has 2 direct reports (one analytics-focused, one product).
This role sits at the intersection of analytics consulting, product strategy, and execution.
Responsibilities
1. Customer outcomes = product success
Build measurable success stories: “saw → acted → got results.”
Drive product adoption and improve key metrics.
Build backlog based on customer + CSM feedback, not assumptions.
2. Quality gate for analytics (non-negotiable)
Acts as the quality gate before release.
Validates data correctness, methodology, and UX.
Stops releases when numbers aren’t trustworthy, methodology is weak, or UX is poor.
3. Analytics consulting → productization loop
Runs customer deep-dives (discovery / JTBD).
Personally explores customer data to diagnose problems and recommend actions.
Transforms one-off consulting insights into scalable product capabilities:
repeatable workflows, templates, automated recommendations, and UI patterns.
4. Vision → execution
Adopts the existing product vision and makes it their own.
Breaks strategy into actionable increments.
Communicates priorities clearly and aligns them with company-level goals.
5. Team leadership
Provides clear product direction to engineering and design.
Mentors product talent.
Contributes to hiring and performance management.
What We Expect From You
Proven experience launching a successful B2B analytics product with paying customers.
Strong hands-on data skills:
Comfortable working directly in SQL
Confident in Excel / Google Sheets
Deep understanding of attribution, experimentation, and validation
Able to personally dig into data to validate hypotheses and identify issues.
Uses GPT / AI assistants to accelerate analysis — not as a substitute for understanding.
Consulting mindset: able to sit with a client, break down metrics, identify root causes, and propose an action plan.
Comfortable making product decisions under uncertainty via prototyping and rapid feedback.
Strong argumentation skills — able to overcome resistance across people and processes.
High standards for analytics UX and methodology.
Russian at professional or native level.
Nice to Have
Experience in CRM marketing / MarTech.
Experience building AI-driven data products.
What We Offer
Ambitious vision: an expert system from goals to actions — not another BI tool.
AI embedded into the product core.
Direct impact on customer revenue and business results.
Transparent culture (open finances and salaries).
High autonomy and strong feedback loops with customers.
Remote-first — no mandatory office attendance.
Preferred: ability to travel for onboarding (~2 weeks; travel co-funded).
Flexible schedule.
Unlimited vacation (aligned with the team).
Sick leave without paperwork.
Accredited IT company.
Equipment provided: MacBook, monitors, noise-canceling headphones, and all necessary peripherals.
Well-being program toward education, healthcare, psychotherapy, sports, or travel.
Self-development support: Co-funding for courses, workshops, coaching, negotiation training, business writing, emotional intelligence, and more.
Employment formats: Payroll / contractor / self-employed — multiple formats possible.
Hiring Process
Zoom screening interview with a Hire5 recruiter
Short written test task (text-based)
Soft-skills interview (3 competencies; STAR/case format)
Technical interview (analytics/product depth; STAR/case)
Team interview (chemistry / meet the team)
Hire5 provides aspiring talents worldwide with remote opportunities to enhance their careers in Silicon Valley startups and other US-based companies.
Interested in joining one of the most promising US startups?
Press here to apply now or click “connect” on career.hire5.co to subscribe for future opportunities in your desired profession!
At Hire5, we partner with ambitious tech companies building category-defining products.
We’re hiring a Product Lead (Analytics) for a leading Marketing Automation Cloud and Customer Data Platform (CDP) serving major brands across the CIS region. The platform helps large and mid-sized companies unify and activate customer data to drive revenue through personalized, data-driven marketing.
This is not another dashboard tool. It’s an expert system designed to move CMOs from business goals → insights → actions → measurable growth.
About the Product
The Analytics team is building a product where a CMO logs in and immediately sees:
What’s happening with revenue
How marketing impacts it
Which levers to pull to drive growth
Core areas:
Business metric decomposition
OKR-style goal tracking
Revenue attribution
AI-powered assistant with automated analysis & recommendations
Funnels
Loyalty analytics
Comparable market references include:
Triple Whale
Klaviyo (Analytics)
Rebuy
LoyaltyLion
Amplitude
Role & Team
The Product Lead (Analytics):
Owns all products within the Analytics team (not a single feature).
Leads a team of ~8–10 people (engineering + design).
Has 2 direct reports (one analytics-focused, one product).
This role sits at the intersection of analytics consulting, product strategy, and execution.
Responsibilities
1. Customer outcomes = product success
Build measurable success stories: “saw → acted → got results.”
Drive product adoption and improve key metrics.
Build backlog based on customer + CSM feedback, not assumptions.
2. Quality gate for analytics (non-negotiable)
Acts as the quality gate before release.
Validates data correctness, methodology, and UX.
Stops releases when numbers aren’t trustworthy, methodology is weak, or UX is poor.
3. Analytics consulting → productization loop
Runs customer deep-dives (discovery / JTBD).
Personally explores customer data to diagnose problems and recommend actions.
Transforms one-off consulting insights into scalable product capabilities:
repeatable workflows, templates, automated recommendations, and UI patterns.
4. Vision → execution
Adopts the existing product vision and makes it their own.
Breaks strategy into actionable increments.
Communicates priorities clearly and aligns them with company-level goals.
5. Team leadership
Provides clear product direction to engineering and design.
Mentors product talent.
Contributes to hiring and performance management.
What We Expect From You
Proven experience launching a successful B2B analytics product with paying customers.
Strong hands-on data skills:
Comfortable working directly in SQL
Confident in Excel / Google Sheets
Deep understanding of attribution, experimentation, and validation
Able to personally dig into data to validate hypotheses and identify issues.
Uses GPT / AI assistants to accelerate analysis — not as a substitute for understanding.
Consulting mindset: able to sit with a client, break down metrics, identify root causes, and propose an action plan.
Comfortable making product decisions under uncertainty via prototyping and rapid feedback.
Strong argumentation skills — able to overcome resistance across people and processes.
High standards for analytics UX and methodology.
Russian at professional or native level.
Nice to Have
Experience in CRM marketing / MarTech.
Experience building AI-driven data products.
What We Offer
Ambitious vision: an expert system from goals to actions — not another BI tool.
AI embedded into the product core.
Direct impact on customer revenue and business results.
Transparent culture (open finances and salaries).
High autonomy and strong feedback loops with customers.
Remote-first — no mandatory office attendance.
Preferred: ability to travel for onboarding (~2 weeks; travel co-funded).
Flexible schedule.
Unlimited vacation (aligned with the team).
Sick leave without paperwork.
Accredited IT company.
Equipment provided: MacBook, monitors, noise-canceling headphones, and all necessary peripherals.
Well-being program toward education, healthcare, psychotherapy, sports, or travel.
Self-development support: Co-funding for courses, workshops, coaching, negotiation training, business writing, emotional intelligence, and more.
Employment formats: Payroll / contractor / self-employed — multiple formats possible.
Hiring Process
Zoom screening interview with a Hire5 recruiter
Short written test task (text-based)
Soft-skills interview (3 competencies; STAR/case format)
Technical interview (analytics/product depth; STAR/case)
Team interview (chemistry / meet the team)
Hire5 provides aspiring talents worldwide with remote opportunities to enhance their careers in Silicon Valley startups and other US-based companies.
Interested in joining one of the most promising US startups?
Press here to apply now or click “connect” on career.hire5.co to subscribe for future opportunities in your desired profession!
Khawla essa
AI Engineer for Crypto Fintech Startup
Toronto, Canada +1
Toronto, Canada +1
Full time
Remote
ghul is a financial intelligence company built to cut through the noise of a broken financial system
We're looking for an AI Engineer to build our AI products, autonomous agents, and algorithmic trading systems using the latest AI practices.
Responsibilities
*Build and ship AI-powered products and tools
*Develop LLM-based agents to automate business operations
*Design and implement crypto algorithmic trading systems
*Automate workflows using the latest AI practices
Requirements
* Proficient in Python and AI/ML frameworks
* Experience with LLM agents
* Knowledge of crypto markets and algorithmic trading
* Fintech or financial AI background is a plus
Compensation
Base salary with negotiable equity. A 1% stake is valued at $58,000, reflecting our early-stage growth opportunity.
We're looking for an AI Engineer to build our AI products, autonomous agents, and algorithmic trading systems using the latest AI practices.
Responsibilities
*Build and ship AI-powered products and tools
*Develop LLM-based agents to automate business operations
*Design and implement crypto algorithmic trading systems
*Automate workflows using the latest AI practices
Requirements
* Proficient in Python and AI/ML frameworks
* Experience with LLM agents
* Knowledge of crypto markets and algorithmic trading
* Fintech or financial AI background is a plus
Compensation
Base salary with negotiable equity. A 1% stake is valued at $58,000, reflecting our early-stage growth opportunity.
Payment in Crypto
Lumixion
DApp & Smart Contract Developer (Vesting Platform)
Full time
Remote
We are looking for a skilled DApp & Smart Contract Developer to enhance and stabilize our client’s crypto vesting platform. You will diagnose existing issues, improve performance, deliver new features, and ensure seamless coordination between smart contracts and the front end.
This role is ideal for someone who thrives in fast-moving environments, values clean and secure code, and understands the nuances of blockchain-based application architecture.
Responsibilities
Diagnose and resolve issues in vesting smart contracts and their front-end integrations.
Implement new features and system enhancements to improve UX and overall platform performance.
Maintain smooth interaction between the web interface and deployed smart contracts.
Conduct testing, audits, and deployments across testnet and mainnet environments.
Optimize contract logic for performance, security, and gas efficiency.
Collaborate with our engineering team to identify pain points and deliver stable, secure solutions.
Requirements
Proven experience building full-stack decentralized applications.
Strong proficiency in Solidity, JavaScript/TypeScript, and modern frameworks (Angular, React, or Vue).
Hands-on experience with Hardhat or Foundry for smart contract development and testing.
Familiarity with Ethers.js or Web3.js for blockchain interaction layers.
Solid understanding of Ethereum, Polygon, or other EVM-compatible chains.
Experience integrating wallets such as MetaMask and managing on-chain/off-chain data flows.
Strong debugging skills, attention to detail, and a security-first mindset.
Nice to Have
Experience with smart contract security audits and gas optimization techniques.
Knowledge of Node.js-based backend services or API integration layers.
Previous experience with vesting, staking, or token distribution mechanisms.
Project Scope
This role supports a short-to-mid-term initiative focused on stabilizing and enhancing an existing crypto vesting platform. High-performing developers may have opportunities for ongoing collaboration across additional blockchain and product engineering projects.
Hiring Process
Technical Assessment - Selected candidates will complete a short, clearly scoped technical exercises designed solely to evaluate coding approach and smart contract knowledge.
CTO interview - A final discussion to evaluate technical reasoning, architectural thinking, and team fit. Successful candidates may receive an offer through Contra following this conversation.
This role is ideal for someone who thrives in fast-moving environments, values clean and secure code, and understands the nuances of blockchain-based application architecture.
Responsibilities
Diagnose and resolve issues in vesting smart contracts and their front-end integrations.
Implement new features and system enhancements to improve UX and overall platform performance.
Maintain smooth interaction between the web interface and deployed smart contracts.
Conduct testing, audits, and deployments across testnet and mainnet environments.
Optimize contract logic for performance, security, and gas efficiency.
Collaborate with our engineering team to identify pain points and deliver stable, secure solutions.
Requirements
Proven experience building full-stack decentralized applications.
Strong proficiency in Solidity, JavaScript/TypeScript, and modern frameworks (Angular, React, or Vue).
Hands-on experience with Hardhat or Foundry for smart contract development and testing.
Familiarity with Ethers.js or Web3.js for blockchain interaction layers.
Solid understanding of Ethereum, Polygon, or other EVM-compatible chains.
Experience integrating wallets such as MetaMask and managing on-chain/off-chain data flows.
Strong debugging skills, attention to detail, and a security-first mindset.
Nice to Have
Experience with smart contract security audits and gas optimization techniques.
Knowledge of Node.js-based backend services or API integration layers.
Previous experience with vesting, staking, or token distribution mechanisms.
Project Scope
This role supports a short-to-mid-term initiative focused on stabilizing and enhancing an existing crypto vesting platform. High-performing developers may have opportunities for ongoing collaboration across additional blockchain and product engineering projects.
Hiring Process
Technical Assessment - Selected candidates will complete a short, clearly scoped technical exercises designed solely to evaluate coding approach and smart contract knowledge.
CTO interview - A final discussion to evaluate technical reasoning, architectural thinking, and team fit. Successful candidates may receive an offer through Contra following this conversation.
Payment in Crypto
Rui Silva
Senior Blockchain Developer - Ethereum/PulseChain - GAM3S.GG
Lisbon, Portugal
Lisbon, Portugal
Full time
Remote
About the Job
We're looking for a Senior Blockchain Developer with strong Ethereum/PulseChain smart contract experience to work on our DeFi/GameFi platform. You'll be building and maintaining betting contracts, yield farming mechanisms, token swap systems, and Web3 frontend integrations for our decentralized application on PulseChain.
Key Responsibilities
Smart Contract Development
System Architecture & Integration
Frontend Web3 Integration
Security & Compliance
Performance & Monitoring
Required Technical Skills
Blockchain Expertise
Frontend Web3 Development
Development Tools
Integration & Tools
We're looking for a Senior Blockchain Developer with strong Ethereum/PulseChain smart contract experience to work on our DeFi/GameFi platform. You'll be building and maintaining betting contracts, yield farming mechanisms, token swap systems, and Web3 frontend integrations for our decentralized application on PulseChain.
Key Responsibilities
Smart Contract Development
System Architecture & Integration
Frontend Web3 Integration
Security & Compliance
Performance & Monitoring
Required Technical Skills
Blockchain Expertise
Frontend Web3 Development
Development Tools
Integration & Tools
Payment in Crypto
Hazel Thomas
Web3 + Supabase Developer Needed to Complete BSC Testnet Waitlist & Staking Platform
Washington, USA
Washington, USA
Part time
Remote
📌 Job Description
We are building a production-ready Web3 waitlist and dashboard platform using Next.js 15 (App Router), BSC Testnet, Supabase, and Wagmi v2.
The core architecture, database schema, and feature roadmap are already defined. We are looking for an experienced developer to complete, polish, and harden the project.
This is not a prototype — the goal is a fully working, deployable system with clean code, security best practices, and proper Web3 UX.
🧩 Project Overview
The platform includes:
Wallet-based user registration (BSC Testnet only)
Automatic network detection & switching
Supabase-backed user management
Automatic virtual card generation (Bronze / Silver / Gold)
Token staking system with transaction logging
Referral system with rewards tracking
Dashboard with analytics & history
X (Twitter) OAuth integration
Discord bot with XP & invite tracking
A detailed README and database schema are already prepared.
✅ Responsibilities
You will be responsible for:
Completing and stabilizing the Next.js App Router implementation
Finalizing wallet connection & network enforcement (Chain ID 97)
Ensuring Supabase RLS policies are correct and secure
Implementing or completing:
Staking flows (stake, unstake, claim, emergency withdraw)
Referral tracking & reward logic
Dashboard analytics & transaction history
Finalizing X (Twitter) OAuth integration
Reviewing and improving overall code quality & structure
Fixing bugs, edge cases, and UX issues
Preparing the app for Railway deployment
(Bonus) Improving performance and Web3 UX
🛠 Tech Stack (Must-Have Experience)
Required:
Next.js 14/15 (App Router)
TypeScript
Wagmi v2 + WalletConnect
EVM chains (BSC preferred)
Supabase (Postgres, RLS, triggers, SQL functions)
Tailwind CSS
Web3 transaction handling & logging
Nice to Have:
Discord bot development (Node.js)
OAuth 2.0 (X / Twitter)
Smart contract interaction (staking contracts)
Framer Motion
shadcn/ui / Radix UI
🔒 Security Expectations
You must be comfortable with:
Wallet validation & chain enforcement
Preventing self-referrals & abuse
Transaction hash uniqueness checks
Secure handling of OAuth tokens
Supabase RLS & role-based access
📦 Deliverables
Fully working, deployable application
Clean, documented codebase
Verified Supabase schema & policies
Functional staking & referral systems
Deployment-ready build (Railway)
Basic handover documentation
⏳ Timeline
Estimated duration: 2–4 months
Start: Immediately
Potential for long-term collaboration
💰 Budget
Open to fixed-price or hourly
Please include:
Your estimated timeline
Relevant Web3 / Next.js projects
Any questions or suggestions to improve the system
🧠 How to Apply
When applying, please answer:
Have you built production Web3 apps with Next.js + Wagmi before?
Have you worked with Supabase RLS & SQL triggers?
Share 1–3 relevant projects (GitHub or live links)
What risks or improvements do you see in this architecture?
Generic proposals will be ignored.
We are building a production-ready Web3 waitlist and dashboard platform using Next.js 15 (App Router), BSC Testnet, Supabase, and Wagmi v2.
The core architecture, database schema, and feature roadmap are already defined. We are looking for an experienced developer to complete, polish, and harden the project.
This is not a prototype — the goal is a fully working, deployable system with clean code, security best practices, and proper Web3 UX.
🧩 Project Overview
The platform includes:
Wallet-based user registration (BSC Testnet only)
Automatic network detection & switching
Supabase-backed user management
Automatic virtual card generation (Bronze / Silver / Gold)
Token staking system with transaction logging
Referral system with rewards tracking
Dashboard with analytics & history
X (Twitter) OAuth integration
Discord bot with XP & invite tracking
A detailed README and database schema are already prepared.
✅ Responsibilities
You will be responsible for:
Completing and stabilizing the Next.js App Router implementation
Finalizing wallet connection & network enforcement (Chain ID 97)
Ensuring Supabase RLS policies are correct and secure
Implementing or completing:
Staking flows (stake, unstake, claim, emergency withdraw)
Referral tracking & reward logic
Dashboard analytics & transaction history
Finalizing X (Twitter) OAuth integration
Reviewing and improving overall code quality & structure
Fixing bugs, edge cases, and UX issues
Preparing the app for Railway deployment
(Bonus) Improving performance and Web3 UX
🛠 Tech Stack (Must-Have Experience)
Required:
Next.js 14/15 (App Router)
TypeScript
Wagmi v2 + WalletConnect
EVM chains (BSC preferred)
Supabase (Postgres, RLS, triggers, SQL functions)
Tailwind CSS
Web3 transaction handling & logging
Nice to Have:
Discord bot development (Node.js)
OAuth 2.0 (X / Twitter)
Smart contract interaction (staking contracts)
Framer Motion
shadcn/ui / Radix UI
🔒 Security Expectations
You must be comfortable with:
Wallet validation & chain enforcement
Preventing self-referrals & abuse
Transaction hash uniqueness checks
Secure handling of OAuth tokens
Supabase RLS & role-based access
📦 Deliverables
Fully working, deployable application
Clean, documented codebase
Verified Supabase schema & policies
Functional staking & referral systems
Deployment-ready build (Railway)
Basic handover documentation
⏳ Timeline
Estimated duration: 2–4 months
Start: Immediately
Potential for long-term collaboration
💰 Budget
Open to fixed-price or hourly
Please include:
Your estimated timeline
Relevant Web3 / Next.js projects
Any questions or suggestions to improve the system
🧠 How to Apply
When applying, please answer:
Have you built production Web3 apps with Next.js + Wagmi before?
Have you worked with Supabase RLS & SQL triggers?
Share 1–3 relevant projects (GitHub or live links)
What risks or improvements do you see in this architecture?
Generic proposals will be ignored.
Payment in Crypto