At Matter Labs, we believe freedom drives progress and prosperity. We don’t see ourselves as a company, but as a team aligned around a single mission: to advance personal freedom for all (see ZK Credo).

To achieve this goal, we’re building zkSync — a credibly neutral, fully open source technology stack and network on top of Ethereum, which is owned and governed by its community. We use advanced cryptography called zero-knowledge proofs to scale Ethereum infinitely without compromising on security or decentralization. With a world-class team, a community of over 1M supporters across Twitter + Discord, and hundreds of millions $ in funding, we have abundant resources to accomplish the mission.

The Role

You will be responsible for implementing our LLVM-based compilers from Solidity, Vyper, and other languages to zkSync EraVM bytecode.

We expect you to independently conduct research in your area of ownership, design, implement, and document solutions.

What we work on

As the team we help the company to scale Ethereum to promote personal sovereignty . The company has a state of the art zkRollup implemented as a circuit to make computation in blockchain fast and cheap. The team made LLVM-based Solidity and Vyper toolchains for our target to make it accessible to smart contract developers. Now we prioritise improving developer’s experience and making our compilers to optimize better.

Why join the Matter Labs compiler team?

Around 80% of your time will be spent on new feature development, not maintenance.
You will work in the domain where compilation time consuming, computationally heavy optimizations are possible and profitable.
You will work in the domain where good toolchains aren’t common, so your work could make other developer’s lives noticeably better.
You will have an opportunity to own a big part of the codebase, be independent in task prioritization, and be measured by results only..
You will work remotely with a flexible schedule.
You will be heard by leadership and other members of the team.
You will be compensated in the top 15% of the market and will be entitled to generous share options

What You'll Be Doing

zkSync EraVM back-end migration to the latest version of the ISA
Back-end optimizations - better selection patterns, better ISA utilization, peephole passes, etc.
Optimizer tuning - zkSync EraVM is different from a typical LLVM target, so passes like instruction combiner need to be configured, and the pipeline itself has to be tuned
Front-end optimizations - our front-ends currently produce correct IR, but it lacks attributes and metadata that would make analyses and transformations more efficient
Debug information and debugger support
Profiler support
Binary format development and linker integration - we currently use a custom linker written in Rust and want to migrate to LLVM one day

What We Look For in You

We expect you’ve spent around 5 or more years working on projects that use LLVM or on LLVM itself and learned LLVM in breadth or depth.
You ideally have experience implementing MLIR or LLVM IR-level optimizations.
We expect you are capable of writing maintainable code in modern C++.
To understand the connection between programming language design and compiler implementation, we expect it to be true with respect to the very language you program in.
You can deliver results with no supervision.
We like critical thinkers and people that communicate when they see something wrong

Working at Matter Labs

At Matter Labs, you have the freedom to work how you want, when you want, and from where you want. All positions are 100% remote (with optional travel to team and/or industry events). We operate in lean and nimble teams, with no time tracking and minimum bureaucracy. We move fast. Only results matter. We will provide you with everything you need to learn, grow, and be productive.

Our results-only environment means anyone who believes in our mission can join us, regardless of background, sexual orientation, race, gender, and age. Both our team and community are made up of people from diverse backgrounds. That's why, out of politeness and respect, we refrain from opinions on politics, religion, or sex at the workplace.

We designed our culture around the tenants of freedom and ownership. This ethos will underpin our positive-sum community as we evolve toward full decentralization.

If this role resonates with you, apply now for prompt feedback.

Read more about working at Matter Labs here.

Important: We are remote-first, operating in the timezones between UTC-5 (Latam and Atlantic Coast) to UTC+7 (South-East Asia).

Please click here for our applicant privacy notice.

To all recruitment agencies: Matter Labs does not accept agency resumes. Please do not forward resumes to our jobs alias, Matter Labs employees, or any other organisation location. Matter Labs is not responsible for any fees related to unsolicited resumes. Read our full policy here.

Senior Compiler Engineer

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