Join Tether and Shape the Future of Digital Finance
At Tether, we’re not just building products, we’re pioneering a global financial revolution. Our cutting-edge solutions empower businesses—from exchanges and wallets to payment processors and ATMs—to seamlessly integrate reserve-backed tokens across blockchains. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive digital tokens instantly, securely, and globally, all at a fraction of the cost. Transparency is the bedrock of everything we do, ensuring trust in every transaction.
Innovate with Tether
Tether Finance:
Our innovative product suite features the world’s most trusted stablecoin,
USDT
, relied upon by hundreds of millions worldwide, alongside pioneering digital asset tokenization services.
But that’s just the beginning:
Tether Power:
Driving sustainable growth, our energy solutions optimize excess power for Bitcoin mining using eco-friendly practices in state-of-the-art, geo-diverse facilities.
Tether Data:
Fueling breakthroughs in AI and peer-to-peer technology, we reduce infrastructure costs and enhance global communications with cutting-edge solutions like
KEET
, our flagship app that redefines secure and private data sharing.
Tether Education
: Democratizing access to top-tier digital learning, we empower individuals to thrive in the digital and gig economies, driving global growth and opportunity.
Tether Evolution
: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways.
Why Join Us?
Our team is a global talent powerhouse, working remotely from every corner of the world. If you’re passionate about making a mark in the fintech space, this is your opportunity to collaborate with some of the brightest minds, pushing boundaries and setting new standards. We’ve grown fast, stayed lean, and secured our place as a leader in the industry.
If you have excellent English communication skills and are ready to contribute to the most innovative platform on the planet, Tether is the place for you.
Are you ready to be part of the future?
About the job
We need someone who is equally comfortable writing C and JavaScript. The Bare team builds and maintains the runtime itself along with a growing ecosystem of native modules (bare-bluetooth, bare-tcp, bare-fs, bare-crypto, and many more). You would be writing native addons that bridge platform APIs into JavaScript, debugging across multiple operating systems, and helping keep the runtime small and correct. This is a hands-on systems role. You will work independently, own modules end to end, and ship code that runs on phones, laptops, servers, and constrained devices.
Native module development
Design, implement, and ship bare-* native modules (e.g., bare-bluetooth, bare-tcp, bare-fs, bare-crypto) end to end, including code, and tests
Write C native addons that bridge platform APIs (Bluetooth, networking, filesystem, crypto) into JavaScript
Maintain and extend existing native modules based on product team requests and the bare-node compatibility list
Cross-platform builds and CI
Set up and maintain cross-platform builds for macOS, Linux, Android (NDK), and iOS (Xcode)
Own cross-compilation toolchain configuration for each target platform
Maintain CI pipelines that build and test native modules across all supported platforms
Investigate and fix platform-specific build failures and toolchain issues
Bare Runtime contributions
Contribute to the Bare runtime core (module system, native addon system, light-weight threads)
Help reduce the bare-node missing API surface
Participate in evaluating and integrating alternative JS engines eg libjerry
Debugging and quality
Debug native addon issues across multiple OS and device targets, including mobile
Write and maintain tests for all modules
Collaboration and communication
Respond to Bare team inquiries from internal teams and the public.
Communicate progress, blockers, and decisions in writing .
Participate in a weekly status call.
Participate in Bare workshops and contribute to onboarding materials.
Coordinate with product teams (Keet, WDK/Wallet).
Strong C programming skills, including experience writing and debugging native code across platforms.
Advanced JavaScript skills with a solid understanding of
Node.js
internals and the module ecosystem.
Experience building native addons for
Node.js
or similar runtimes (N-API, node-gyp, or equivalent).
Familiarity with libuv or other asynchronous I/O frameworks.
Comfortable working across macOS, Linux, Android, and iOS build toolchains.
Experience with cross-compilation and platform-specific system APIs (Bluetooth, networking, filesystem).
Ability to read and navigate large C and C++ codebases.
Self-directed work style with strong written communication skills.
Important information for candidates
Recruitment scams have become increasingly common. To protect yourself, please keep the following in mind when applying for roles:
Apply only through our official channels.
We do not use third-party platforms or agencies for recruitment unless clearly stated. All open roles are listed on our official careers page: https://tether.recruitee.com/
Verify the recruiter’s identity.
All our recruiters have verified LinkedIn profiles. If you’re unsure, you can confirm their identity by checking their profile or contacting us through our website.
Be cautious of unusual communication methods.
We do not conduct interviews over WhatsApp, Telegram, or SMS. All communication is done through official company emails and platforms.
Double-check email addresses.
All communication from us will come from emails ending in
@
tether.to
or @
tether.io
We will never request payment or financial details.
If someone asks for personal financial information or payment at any point during the hiring process, it is a scam. Please report it immediately.
When in doubt, feel free to reach out through our official website.
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Questions:
- Full name
- Email address
- Resume/CV
- Cover letter
- Phone
-
To fairly assess candidates’ skills and experiences, please do not use AI tools when completing this application. Answers generated by AI may disqualify your application, as we’re looking for your own perspective and reasoning.
- Why are you interested in working at Tether?
- Describe a native addon or C extension you built for a JavaScript runtime. What platform APIs did it bridge, and what was the hardest cross-platform issue you ran into?
- Walk us through how you would set up a C native module that needs to compile and run on macOS, Linux, Android, and iOS. What toolchains, build systems, and CI setup would you use?
- Explain how asynchronous I/O works at the C level in libuv (or a similar framework). How does a native addon schedule async work and return results to JavaScript without blocking the event loop?
- Tell us about a time you owned a piece of software end to end, from design through shipping and maintenance. How did you decide what to build, how did you communicate progress, and what did you do when you got stuck?
- Have you contributed to any open-source systems-level or runtime projects? If so, link to a PR or module you are proud of and explain what it does.
- Do you have experience with any of the following? Briefly describe your level of familiarity:
- Bluetooth Low Energy (BLE)
- V8 internals or alternative JS engines (JerryScript, QuickJS)
- Cryptographic primitives or crypto library bindings
- P2P protocols (Kademlia, BitTorrent, Hypercore)
- Considering this is a remote role, from which country will you be working?
- What's your expected annual salary for this role? (in USD)
- Linkedin profile
- Useful links (e.g. GitHub)
- How did you hear about this opportunity?
- Company website
- LinkedIn
- HackerNews
- Wellfound
- Networking event or conference
- Referral
- Other