About us

Pass App is on a mission to ignite financial freedom and true ownership for people everywhere. Each member of our team takes ownership and contributes a unique piece to our journey into the exciting realm of web3. Together, we craft more than just meaningful products and services—we create a lasting tangible impact in the real world.

We want you to join our search for greatness at the edge of what is technologically possible. Are you tired of the ordinary? Crave a challenge that sparks passion and purpose? We’d love to have you apply!

Our Team Values

• We value iterative learning
• We value taking ownership and leading by example
• We value creating an environment where everyone can unleash their true potential

The role you’re applying for

As we aim to simplify the web3 experience, enhance user engagement through personalized recommendations, and take our users along in this journey of web3 awareness, we are leveraging cutting-edge AI technology to build a scalable web3 solution that abstracts away all the underlying complexity.

We’re on the lookout for a Senior Software Engineer with a knack for steering projects from inception to scale-up. If you thrive on delivering impactful products and possess a solid foundation in constructing scalable distributed systems, we’d love to have you on board. Bring your expertise to the table and join us in leveraging cutting-edge web3 technology to tackle real-world consumer challenges effectively.

Joining early, you’ll actively shape an innovative product and bring it to market while working closely with the leadership team to contribute to the company’s success.

What you’ll be doing

As a Senior Software Engineer, you will:

• Design, Develop and Maintain event driven micro services, creating robust APIs and middleware which facilitate secure and efficient interactions across blockchains
• Optimize blockchain data processing, implementing efficient methods for ingesting, storing, and querying on-chain data to support real-time analytics and user-facing applications
• Collaborate on cross functional autonomous squads, working closely with React Native mobile developers and product teams to deliver quality features in timely manner
• Contributing to application architecture that supports the product teams aspirational goals by considering performance, privacy, security, and maintainability
• Foster a collaborative and communicative environment where everyone is inspired to solve problems, and achieve shared goals

What we’re looking for

• Strong communication and collaboration skills, especially written
• Senior Software Engineer with 5+ years of professional hands-on experience
• Strong knowledge of data structures and algorithms
• Strong experience with building and maintaining scalable microservices systems
• Strong knowledge of event driven development and functional programming
• Strong knowledge of Node.js
• Proficiency in one or more programming languages (i.e TypeScript, Go)
• Proficiency in one or more Web3 libraries (i.e Web3.js or Ethers.js or Viem)
• Proficiency in crafting high-quality tests that enhance system functionality and reliability

Bonus skills

• Experience in integrating Web3 Infrastructure Solutions (i.e Moralis, Alchemy, Biconomy, Turnkey)
• Experience with building aggregation pipelines and indexing, utilizing various data sources (for example, external APIs, Web3 Providers, Smart contract events)
• Working knowledge of microserices frameworks (i.e Moleculer, NestJS)
• Deep interest in software, desire to understand the why and the how of everything you work on
• Experience with agile development methodologies

We got you covered

Working remotely is more than just a benefit or a perk. We believe in the power of remote work to unleash creativity and passion. Join our globally remote team with 35+ different nationalities and enjoy the flexibility to work from anywhere in the universe. As long as you are available in the European working timezone.

Join our team and pursue your passions on your own terms, while we provide you with learning and development budgets, personal development plans and team retreats to fuel your web3 curiosity.

HyperPlay is looking to hire a Senior Frontend Engineer to join their team. This is a full-time position that can be done remotely anywhere in AMER.

HyperPlay - A web3-native game store.

Apply Now:

Cryptio

Cryptio is an enterprise-grade crypto back-office platform. Our software helps financial institutions, corporates and crypto-native companies navigate the fragmented digital-asset landscape with confidence. We are a Series-A company, backed by tier-1 crypto and non crypto investors: Point Nine, BlueYard, Tim Draper, Alven, Aave, Consensys, Outlier Ventures. Some of our clients include top crypto companies like Uniswap or Metamask as well as banks and governments.

We're tackling one of the biggest challenges in crypto right now - building the infrastructure to help institutional adoption. And we're playing to win.

Location

This is a fully remote position, ideally located in the UK or France but we're open to exploring Europe for the right candidate depending on location. You should be able to easily join one of our hubs from time to time. Our hubs are Paris, London, and New-York.

Summary

Cryptio is looking for a Lead Software Engineer interested in working on crypto / finance / accounting related products.

You will join a team of talented engineers working on Cryptio’s Integrations Squad. The mission of this team is to integrate our suite of products with external systems like third party exchanges (eg. Coinbase), digital assets custodians (eg. BitGo), order management systems (eg. Wyden) and internal databases (eg. Snowflake).

Technologies used:

• Languages: Typescript (key dependencies: Axios, Zod, Nest.js)

• Infrastructure: Kubernetes, Docker, Gitlab, Grafana, Redis, S3

• Cloud: AWS

• And more!

Overview

You will play a crucial role in creating reliable, scalable connections between our platform and an ever-evolving network of exchanges, custodians, and financial systems. This role requires tackling the complexities of integrating with dynamic, often fragmented data sources and protocols unique to the cryptocurrency industry.

The crypto ecosystem is fast-paced, with constant changes in APIs, regulatory standards, and platform-specific data structures. Our customers rely on Cryptio to have seamless, accurate data connections to help them navigate their financial operations confidently. As part of our integration team, you’ll be responsible for designing and implementing robust solutions to handle real-time data syncing, overcoming challenges like data discrepancies, and building systems that are both secure and compliant with financial regulations.

Responsibilities

• Lead the design, development, and maintenance of back-end services for integration with third-party crypto exchanges, custodians, and financial platforms

• Drive architectural decisions to ensure scalability, reliability, and security, supporting the rapid growth of Cryptio’s integration capabilities.

• Oversee code quality by conducting code reviews, providing feedback, and ensuring adherence to best practices

• Mentor and support the technical growth of engineers on the team

• Work closely with product and engineering leadership to align integration projects with Cryptio’s strategic goals

• Monitor and troubleshoot integration issues, proactively implementing improvements and maintaining data accuracy

Requirements

• 5+ years of experience in software engineering, including 1+ year of experience as a Team Lead

• Deep knowledge of Typescript

• Extensive experience dealing with third party APIs (REST, GraphQL)

• Knowledge of OAuth, JWT, signature mechanisms and other authorization and authentication methods often used with APIs

• Impeccable spoken and written English

• Exceptional communication skills and a passion for mentoring and developing engineering talent

• Thriving when working with others - collaboration is paramount for this role

• An analytical mindset, a passion for solving complex problems, and an interest in the crypto and fintech industry

Benefits

✨ Fully-Remote / Hybrid – The choice is yours! 🌍🏡

🎉 25 Days Paid Holiday + Bank Holidays + Your Birthday Off 🎂

💰 4% Pension Contributions towards your future! 💼

🏥 Private Medical & Dental Insurance with Allianz! 🦷💊

👶 Attractive Maternity and Paternity Policies for your growing family 👨‍👩‍👧‍👦

💪 Gym Classes or Spa Treatments with ClassPass! 🧘‍♂️🧖‍♀️

💻 Apple MacBook Pro – The best tech at your fingertips! 💻✨

💵 $200 Workplace Budget to create your perfect home office! 🏠💼

📚 Training and Development Budget – Invest in yourself and grow! 🚀

Apply Now:

Cryptio

Cryptio is an enterprise-grade crypto back-office platform. Our software helps financial institutions, corporates and crypto-native companies navigate the fragmented digital-asset landscape with confidence. We are a Series-A company, backed by tier-1 crypto and non crypto investors: Point Nine, BlueYard, Tim Draper, Alven, Aave, Consensys, Outlier Ventures. Some of our clients include top crypto companies like Uniswap or Metamask as well as banks and governments.

We're tackling one of the biggest challenges in crypto right now - building the infrastructure to help institutional adoption. And we're playing to win.

Location

This is a fully remote position, ideally located in the UK or France but we're open to exploring Europe for the right candidate depending on location. You should be able to easily join one of our hubs from time to time. Our hubs are Paris, London, and New-York.

Summary

Cryptio is looking for an intermediate Software Engineer interested in working on crypto / finance / accounting related products.

You will join a team of talented engineers working on Cryptio’s Integrations Squad. The mission of this team is to integrate our SaaS platform with third party exchanges (Coinbase, Binance…), custodians (BitGo, Fireblocks…) or order and execution management systems (Talos, Wyden…).

Technologies used:

• Languages: Typescript (key dependencies: Axios, Zod, Nest.js)

• Infrastructure: Kubernetes, Docker, Gitlab, Grafana, Redis, S3

• Cloud: AWS

• And more!

Overview

You will play a crucial role in creating reliable, scalable connections between our platform and an ever-evolving network of exchanges, custodians, and financial systems. This role requires tackling the complexities of integrating with dynamic, often fragmented data sources and protocols unique to the cryptocurrency industry.

The crypto ecosystem is fast-paced, with constant changes in APIs, regulatory standards, and platform-specific data structures. Our customers rely on Cryptio to have seamless, accurate data connections to help them navigate their financial operations confidently. As part of our integration team, you’ll be responsible for designing and implementing robust solutions to handle real-time data syncing, overcoming challenges like data discrepancies, and building systems that are both secure and compliant with financial regulations.

Responsibilities

• Write production-grade Typescript code

• Implement new integrations and maintain existing ones

• Document and test your code

• Work closely with product teams to ensure new integrations meet user needs

• Tackle data inconsistencies and map various data structures to a unified data model

• Monitor integrations health, identify issues proactively, and implement fixes and improvements to maintain data accuracy and availability

• Collaborate with other engineers and contribute to architecture decisions to enhance scalability and reliability

Requirements

• 3+ years of experience writing software

• Production experience with Typescript

• Some experience dealing with third party APIs (REST, GraphQL)

• Knowledge of OAuth, JWT, signature mechanisms and other authorization and authentication methods often used with APIs

• Impeccable spoken and written English

• Great communication, with both technical and non-technical stakeholders

• Thriving when working with others - collaboration is paramount for this role

• An analytical mindset, a passion for solving complex problems, and an interest in the crypto and fintech industry

Benefits

✨ Fully-Remote / Hybrid – The choice is yours! 🌍🏡

🎉 25 Days Paid Holiday + Bank Holidays + Your Birthday Off 🎂

💰 4% Pension Contributions towards your future! 💼

🏥 Private Medical & Dental Insurance with Allianz! 🦷💊

👶 Attractive Maternity and Paternity Policies for your growing family 👨‍👩‍👧‍👦

💪 Gym Classes or Spa Treatments with ClassPass! 🧘‍♂️🧖‍♀️

💻 Apple MacBook Pro – The best tech at your fingertips! 💻✨

💵 $200 Workplace Budget to create your perfect home office! 🏠💼

📚 Training and Development Budget – Invest in yourself and grow! 🚀

Apply Now:

We’re seeking a skilled Frontend Developer to join our dynamic team. You’ll be instrumental in building and maintaining modern web applications using React, TypeScript, and Next.js. As part of our growing startup, you’ll have the opportunity to make significant contributions to our product development and technical architecture.

Key Responsibilities:

• Design and implement responsive, user-friendly web applications using React and TypeScript
• Write clean, maintainable, and efficient code following best practices
• Collaborate with the team to define and implement new features
• Optimize applications for maximum speed and scalability
• Participate in code reviews and contribute to technical discussions
• Debug issues and implement fixes across the application
• Work closely with backend developers to integrate APIs and services

Requirements:

• Minimum 2 years of experience with React, Next.js, and TypeScript
• Strong understanding of frontend fundamentals (HTML5, CSS3, JavaScript)
• Experience with state management solutions (Redux, Context API, etc.)
• Familiarity with version control systems (Git)
• Strong problem-solving skills and attention to detail
• Good written and verbal communication skills in English
• Experience with responsive design and cross-browser compatibility
• Understanding of web performance optimization techniques

What We Offer

• Competitive salary ranging from €31,500 to €40,000 annually, based on experience
• Performance-based yearly bonuses
• 24 days of paid vacation
• Full remote work capability - work from anywhere
• Option to receive salary in cryptocurrency
• Flexible working hours
• Dynamic startup environment with opportunities for growth
• Direct impact on product development and company success