About GFX Labs

Based in Chicago, GFX Labs is a research and development company founded in 2021, dedicated to pushing the boundaries of decentralized finance (DeFi). The company designs and builds cutting-edge tools and platforms for financial services, on-chain data integration, and professional trading experiences. Beyond product development, GFX Labs plays a key role in DeFi governance, contributing to the evolution of major blockchain protocols. With a mission to innovate and democratize finance, the company collaborates with regulators and industry leaders to shape the decentralized financial ecosystem. Its team of experts is committed to delivering impactful solutions for the future of blockchain-based finance.

GFX Labs operates two distinct divisions. Our primary division focuses on Oku, our comprehensive DeFi application. We have partnered with the Uniswap DAO, the leading decentralized exchange, and recently announced a collaboration with Morpho to integrate borrowing and lending into Oku.

Our second division is dedicated to research and development. This work spans various areas, including analyzing the economic safety of on-chain financial mechanisms, designing user experiences, and indexing data for integration into existing products. The GFX team possesses a wide range of skills and has a strong track record of delivering high-quality services to industry-leading organizations.

Why work at GFX?

• Any firm can pay a high salary and offer good incentives (as will we), but most can’t offer interesting, challenging, and rewarding work.
• We have something to prove. Our team is young and hungry. We like to move fast and make things. We know when to double down and when to cut our losses. We are going to make mistakes, and we are going to build a better product because of them. We don’t micromanage or have a huge team of product managers. We want self starters who take charge and solve problems.
• We don’t care if you went to school, what grades you got, or your age. Show us what you have built, what problems you have solved, and what skills you have.

About the Role

As a Cloud Engineer at GFX Labs, you’ll be instrumental in designing and implementing scalable cloud infrastructure to power cross-chain applications to be developed for the Wormhole ecosystem. Working directly with our Engineers, you’ll help architect and maintain our cloud-native deployments across multiple platforms while ensuring optimal performance and cost-effectiveness.

You’ll be responsible for both the infrastructure that supports our applications and contributing to the applications themselves, requiring a blend of traditional cloud engineering skills and software development expertise. Your work will ensure our services remain reliable, efficient, and secure while supporting high-volume cross-chain operations.

Key Responsibilities:

• Design and implement cloud infrastructure using Pulumi and Terraform across multiple providers including DigitalOcean and fly.io
• Manage Kubernetes clusters and develop Knative services to support our applications
• Write and maintain applications in both Golang and TypeScript, leveraging your experience in deployment and delivery
• Implement monitoring, alerting, and observability solutions for production services
• Optimize cloud resource usage and costs while maintaining high availability
• Collaborate with the development team to design scalable application architectures
• Maintain critical production infrastructure and participate in on-call rotations
• Automate deployment processes and implement infrastructure as code solutions

You might be great for this role if you have

• 1+ years of experience in Web3 frontend engineering.
• 2+ years of experience in frontend engineering.
• 2+ years of experience in backend engineering.
• Attention to detail with excellent organizational and communication skills.
• Thrive in an environment where you have significant independence.
• You are proactive and driven by curiosity.
• You have a strong work ethic with disciplined execution skills.
• Robust Web3 experience.

We’d love to hear from you if…

• You love tackling ambitious projects with the ability to change DeFi as we know it
• You care about all aspects of customer experience
• You can see things from a high level, and dive into the details with equal confidence
• You think DeFi can improve day-to-day financial tooling

… and you really care about these details

• You want to create brand new experiences
• You can operate autonomously
• You are pro-active and are driven by curiosity
• You can build robust systems on both web and native platforms
• You can handle complexity, but prefer simplicity

Tools we are using today

• Golang, React, Node, Figma
• Postgresql, Temporal, NATS, Clickhouse
• Gitlab and Github
• DigitalOcean, fly.io, Kubernetes, KNative, Pulumi, Terraform

Benefits

• $120k-$180k
• Stock options
• Full medical, dental, and vision
• Flexible vacation policy

We’re headquartered in Chicago, and thus, we are primarily looking for team members in Chicago. Only Applicants based in North America will be considered. We strongly prefer Chicago applicants.

A relocation bonus is available for Americans to relocate to Chicago.

About GFX Labs

Based in Chicago, GFX Labs is a research and development company founded in 2021, dedicated to pushing the boundaries of decentralized finance (DeFi). The company designs and builds cutting-edge tools and platforms for financial services, on-chain data integration, and professional trading experiences. Beyond product development, GFX Labs plays a key role in DeFi governance, contributing to the evolution of major blockchain protocols. With a mission to innovate and democratize finance, the company collaborates with regulators and industry leaders to shape the decentralized financial ecosystem. Its team of experts is committed to delivering impactful solutions for the future of blockchain-based finance.

GFX Labs operates two distinct divisions. Our primary division focuses on Oku, our comprehensive DeFi application. We have partnered with the Uniswap DAO, the leading decentralized exchange, and recently announced a collaboration with Morpho to integrate borrowing and lending into Oku.

Our second division is dedicated to research and development. This work spans various areas, including analyzing the economic safety of on-chain financial mechanisms, designing user experiences, and indexing data for integration into existing products. The GFX team possesses a wide range of skills and has a strong track record of delivering high-quality services to industry-leading organizations.

Why work at GFX?

• Any firm can pay a high salary and offer good incentives (as will we), but most can’t offer interesting, challenging, and rewarding work.
• We have something to prove. Our team is young and hungry. We like to move fast and make things. We know when to double down and when to cut our losses. We are going to make mistakes, and we are going to build a better product because of them. We don’t micromanage or have a huge team of product managers. We want self starters who take charge and solve problems.
• We don’t care if you went to school, what grades you got, or your age. Show us what you have built, what problems you have solved, and what skills you have.

About the Role

As a Frontend Engineer at GFX Labs, you’ll work alongside our engineering team to build user interfaces for cross-chain applications in the Wormhole ecosystem. This role offers an excellent opportunity to learn blockchain development while applying your frontend development skills to create engaging user experiences.

You’ll contribute to building and maintaining web applications that help users interact with multiple blockchain networks through Wormhole. Working closely with senior engineers, you’ll gain hands-on experience with both modern web development practices and blockchain-specific challenges.

Key Responsibilities:

• Implement responsive user interfaces using React and other modern web tooling
• Write clean, maintainable code following team standards and best practices
• Collaborate with senior engineers to integrate wallet connectivity and on-chain interaction.
• Assist in testing and debugging cross-chain applications
• Learn and apply blockchain development concepts to improve the user experience for users

You might be great for this role if you have

• 1+ years of experience in Web3 frontend engineering.
• 2+ years of experience in frontend engineering.
• Attention to detail with excellent organizational and communication skills.
• Thrive in an environment where you have significant independence.
• You are proactive and driven by curiosity.
• You have a strong work ethic with disciplined execution skills.
• Robust Web3 experience.

What you’ll do at GFX

• Develop top-tier user experiences with DeFi protocols across an array of blockchains
• Create smooth, pixel-fit experiences for customers
• Partner with design on UX strategy
• Build an engineering culture that attracts the most talented people to join us

We’d love to hear from you if…

• You love tackling ambitious projects with the ability to change DeFi as we know it
• You care about all aspects of customer experience
• You can see things from a high level, and dive into the details with equal confidence
• You think DeFi can improve day-to-day financial tooling

… and you really care about these details

• You want to create brand new experiences
• You can operate autonomously
• You are pro-active and are driven by curiosity
• You can build robust systems on both web and native platforms
• You can handle complexity, but prefer simplicity

Tools we are using today

• Golang, React, Node, Figma
• Postgresql, Temporal, NATS, Clickhouse
• Gitlab and Github
• DigitalOcean, fly.io, Kubernetes, KNative, Pulumi, Terraform

Benefits

• $100k-$160k
• Stock options
• Full medical, dental, and vision
• Flexible vacation policy

We’re headquartered in Chicago, and thus, we are primarily looking for team members in Chicago. Only Applicants based in North America will be considered. We strongly prefer Chicago applicants.

A relocation bonus is available for Americans to relocate to Chicago.

About GFX Labs

Based in Chicago, GFX Labs is a research and development company founded in 2021, dedicated to pushing the boundaries of decentralized finance (DeFi). The company designs and builds cutting-edge tools and platforms for financial services, on-chain data integration, and professional trading experiences. Beyond product development, GFX Labs plays a key role in DeFi governance, contributing to the evolution of major blockchain protocols. With a mission to innovate and democratize finance, the company collaborates with regulators and industry leaders to shape the decentralized financial ecosystem. Its team of experts is committed to delivering impactful solutions for the future of blockchain-based finance.

GFX Labs operates two distinct divisions. Our primary division focuses on Oku, our comprehensive DeFi application. We have partnered with the Uniswap DAO, the leading decentralized exchange, and recently announced a collaboration with Morpho to integrate borrowing and lending into Oku.

Our second division is dedicated to research and development. This work spans various areas, including analyzing the economic safety of on-chain financial mechanisms, designing user experiences, and indexing data for integration into existing products. The GFX team possesses a wide range of skills and has a strong track record of delivering high-quality services to industry-leading organizations.

Why work at GFX?

• Any firm can pay a high salary and offer good incentives (as will we), but most can’t offer interesting, challenging, and rewarding work.
• We have something to prove. Our team is young and hungry. We like to move fast and make things. We know when to double down and when to cut our losses. We are going to make mistakes, and we are going to build a better product because of them. We don’t micromanage or have a huge team of product managers. We want self starters who take charge and solve problems.
• We don’t care if you went to school, what grades you got, or your age. Show us what you have built, what problems you have solved, and what skills you have.

About the Role

As a Principal Engineer at GFX Labs, you’ll be at the forefront of developing innovative solutions within the Wormhole ecosystem, focusing on creating seamless user experiences that bridge multiple blockchain networks. This role combines technical leadership with hands-on development, requiring expertise in both frontend and backend development.

You’ll be responsible for architecting and implementing sophisticated web applications that interact with Wormhole and the numerous chains they are deployed on. Your work will directly impact how users interact with cross-chain applications and services, requiring a deep understanding of both web development best practices and blockchain-specific challenges.

Key Responsibilities:

• Lead the technical design and implementation of complex web applications, ensuring high performance, reliability, and an exceptional user experience
• Build and optimize React-based frontends with seamless wallet integration across multiple blockchain networks
• Develop robust backend services to support frontend applications, focusing on scalability and cross-chain functionality
• Collaborate with cross-functional teams to define technical requirements and architectural decisions
• Mentor other engineers and contribute to technical standards and best practices
• Prototype new features and capabilities within the Wormhole ecosystem

You might be great for this role if you have

• 1+ years of experience in Web3 frontend engineering.
• 2+ years of experience in Web3 backend engineering.
• 3+ years of experience in frontend engineering.
• 5+ years of experience in api service development.
• Attention to detail with excellent organizational and communication skills.
• Thrive in an environment where you have significant independence.
• You are proactive and driven by curiosity.
• You have a strong work ethic with disciplined execution skills.
• Robust Web3 experience.

What you’ll do at GFX

• Develop top-tier user experiences with DeFi protocols across an array of blockchains
• Create smooth, pixel-fit experiences for customers
• Partner with design on UX strategy
• Build an engineering culture that attracts the most talented people to join us

We’d love to hear from you if…

• You love tackling ambitious projects with the ability to change DeFi as we know it
• You care about all aspects of customer experience
• You can see things from a high level, and dive into the details with equal confidence
• You think DeFi can improve day-to-day financial tooling

… and you really care about these details

• You want to create brand new experiences
• You can operate autonomously
• You are pro-active and are driven by curiosity
• You can build robust systems on both web and native platforms
• You can handle complexity, but prefer simplicity

Tools we are using today

• Golang, React, Node, Figma
• Postgresql, Temporal, NATS, Clickhouse
• Gitlab and Github
• DigitalOcean, fly.io, Kubernetes, KNative, Pulumi, Terraform

Benefits

• $150k-$200k
• Stock options
• Full medical, dental, and vision
• Flexible vacation policy

We’re headquartered in Chicago, and thus, we are primarily looking for team members in Chicago. Only Applicants based in North America will be considered. We strongly prefer Chicago applicants.

A relocation bonus is available for Americans to relocate to Chicago.

Team Sava specializes in building outstanding teams of passionate, world-class professionals and top-tier software developers for growing global hi-tech companies. 

Job Summary

We are looking for an experienced Game Developer to design, develop, and optimize interactive casino-style games. You will be responsible for creating gameplay mechanics, implementing Provably Fair systems, and ensuring cross-platform compatibility. This is a full time position and we are also open to work with contractors.

We offer:

• Opportunity to work on a great product 
• Remote / Pet-friendly office
• Provided equipment and technology in support of remote work
• Flexible working hours, adjusted to your lifestyle
• Private healthcare insurance for you and your family
• Minimum 23 vacation days
• Team building events

Team Sava nurtures an individual approach to each member of the team to make sure you feel as comfortable and supported as possible. Your opinion matters to us and we make it our business to hear your voice and create an optimal environment for you to do your best work.

Check out our Careers page for more information on how we work! 

Responsibilities:

• Develop HTML5-based mini casino games.
• Implement Provably Fair algorithms for transparent and fair gameplay.
• Optimize games for performance across devices, including desktops, tablets, and mobile browsers.
• Collaborate with designers and animators to create visually engaging and responsive game interfaces.
• Integration of cryptocurrency wallet APIs for deposits, withdrawals, and in-game transactions.
• Conduct thorough testing to identify and resolve performance and compatibility issues.

• Proficiency in JavaScript, HTML5, CSS3, and related game development libraries (e.g., Phaser.js, Pixi.js, three.js).
• Experience with Node.js for backend functionality.
• Experience in Slot and Table Game development.
• Solid understanding of OOP principles and design patterns.
• Knowledge of device compatibility and performance optimization.
• Understanding of network fundamentals
• Experience with version control systems, git-flow
• Good English communication skills

Bonus points for:

• Good to have experience with graphic design tools such as Photoshop, Figma, Spine for creating game assets
• Familiarity with blockchain concepts and hash-based Provably Fair systems

Sounds like an exciting challenge for you? Then these are the next steps:

Hiring process:

1. You let us know that you find this role interesting by sending us your CV

2. Our friendly HR contacts you promptly to schedule a short call to exchange additional information

3. We organize technical interviews where you get the opportunity to meet the rest of the team you would be working with

4. One final interview to talk about your experience, expectations, and plans

5. We think we are a great match, send you a job offer, you agree and accept :)

Looking forward to hearing from you! 

Apply Now: