Horizen Labs

Who We Are:

Our mission is to enhance decentralized networks by reducing costs associated with zero-knowledge proofs. Horizen Labs, established in 2019, aims to create a more secure digital environment within the decentralization wave. We prioritize advancing blockchain technology through cost-effective proof verification methods while maintaining security. With a focus on developing cutting-edge, module-driven architecture integrated with composable zero-knowledge proofs, we continuously set higher standards for efficiency, security, and cost-effectiveness. At Horizen Labs, our team members are our most valuable assets. We foster a culture that empowers individuals to bring their unique ideas to life, and we are seeking innovative minds to join our dedicated team in the blockchain space. Experience the excitement of being part of a rapidly growing company at the forefront of innovation. Embracing diversity drives the innovation needed to create exceptional products. Operating with a globally distributed workforce in collaboration with satellite offices in New York City, NY, and Milan, Italy, enables us to tap into diverse talent pools. Are you ready to be a part of revolutionizing the future with leading-edge blockchain technology? Join us!

We are in search of a skilled Senior Rust Blockchain Engineer to join our team. As a Senior Rust Blockchain Engineer, you will drive the design, implementation, and optimization of blockchain protocols and systems. Your role involves contributing to the development of innovative blockchain solutions and ensuring the reliability and scalability of our blockchain infrastructure. Our international team thrives in a dynamic and innovative environment, leveraging technical expertise to pioneer cutting-edge blockchain solutions. Join our motivated team of technical experts who value open communication, pragmatism, and ownership as we collectively solve complex challenges in software engineering, system design, cryptography, and computing. Ideal candidates will possess extensive hands-on experience and expertise in Rust related to blockchain technology, particularly centered on Substrate. If you have the talent and determination to address critical issues with inventive solutions, consider this an opportunity to lead ground-breaking technology advancements and make a meaningful impact in the crypto and blockchain community.

What You’ll Own:

Make foundational design decisions for core blockchain infrastructure components.

Lead the development, testing, and optimization processes for these components to ensure performance, reliability, security, and scalability.

Take technical ownership of novel systems, identifying opportunities for innovative research and development.

Play a significant role in shaping the company's future, actively participating in strategic decision-making and observing the immediate impact of your contributions.

Engage in conferences and explore opportunities within the on-chain ecosystem.

Skills and Qualifications:

A degree in Computer Science or related field, or equivalent practical experience.

Over 5 years of hands-on Software Development experience using Rust.

Previous work experience on a layer-one (L1) blockchain network.

Proficiency in common design patterns and a strong focus on software architecture design.

Passion for writing secure, fast, well-documented, and tested code.

Experience in technical writing and documentation.

Strong English language skills with excellent written and verbal communication abilities.

Enjoy mentoring junior developers and sharing knowledge.

Collaborative team player able to work across engineering, marketing, and support functions to deliver top-notch solutions.

Autonomous, self-driven, and ego-conscious.

Preferred Qualifications:

Theoretical and practical background in using Rust and/or Substrate for constructing L1 blockchains / relay chains / parachains.

Theoretical and practical knowledge of blockchain-based systems (dApps, rollups, etc.), with specific focus on Ethereum and/or other EVM-based solutions.

Understanding of Zero Knowledge Cryptography, general Cryptography, and their application in blockchain technology.

In compliance with New York City's Pay Transparency Act, the annual base salary range for this position if based in NYC is USD 170,000 to USD 195,000.

Horizen Labs is an equal opportunity employer.

Horizen Labs is dedicated to providing reasonable accommodations for individuals with disabilities. If you require accommodations during any stage of the employment process, please contact recruiting@horizenlabs.io.

Who We Are:

Our organization's purpose is to expand decentralized networks by reducing zero-knowledge proof costs significantly. Established in 2019, Horizen Labs aims to create a more secure and fair digital realm amidst the decentralization movement. Through innovative blockchain technology, we enhance proof verification cost efficiency while maintaining top-tier security standards. Our focus is on developing cutting-edge modular structures empowered by configurable zero-knowledge proofs, setting new benchmarks for performance, security, and cost-effectiveness. At Horizen Labs, we value our talented team above all else, fostering a culture that encourages individuals to realize their ideas. We are seeking imaginative individuals to join our team, comprising the brightest minds in the blockchain sphere. Embrace the excitement of being part of our rapidly growing, innovation-driven company. Our belief in diversity as a driver of innovation shapes our commitment to crafting a truly exceptional product. With a global workforce operating in collaboration with our offices in New York City, NY, and Milan, Italy, we pursue talent wherever it resides. Are you ready to contribute to shaping the next cutting-edge blockchain technology alongside us?

We are seeking a proficient and passionate Senior DevOps Engineer to join our team. In this role at Horizen Labs, a DevOps Engineer is tasked with creating and managing automation, orchestration, installation, and configuration processes tailored to various Public Cloud platforms and dedicated servers. Additionally, they collaborate closely with Software Engineers to design and establish efficient software development pipelines and environments.

Key Responsibilities

Design and implement scalable automation and orchestration pipelines to enhance system robustness and maintainability.

Develop and maintain internal tools for the team's use.

Update installation and configuration procedures for all Providers.

Utilize tools such as Terraform, Ansible, shell scripts, Github Actions, and Travis-CI to manage and deploy Infrastructure.

Enhance the security and protection of production environments and secrets against threats in the demanding Blockchain landscape.

Create and update documentation for infrastructure, configurations, and processes.

Work in tandem with Software Engineers to create streamlined software development pipelines and environments.

Experiment with and implement new techniques and tools to enhance the DevOps process and performance.

Monitor costs and optimize infrastructure.

Qualifications and Experience

Over 3 years of practical DevOps experience, ideally paired with prior Backend Developer experience.

Proficiency in Infrastructure as Code concepts and tools like Terraform and Ansible for orchestration and configuration management.

Experience with Linux/Unix System Administration (e.g., Debian, Ubuntu, Alpine).

Intermediate knowledge of a scripting language like Bash or Python.

Familiarity with Software Version Control tools like GIT, GitHub, Subversion (SVN).

Creation of customized Dockerfiles adhering to Docker best practices.

Experience with cloud providers, preferably AWS.

Understanding of DevOps Methodologies emphasizing CI (Continuous Integration), CD (Continuous Delivery), and IaC (Infrastructure as Code).

Strong communication skills in verbal and written English.

Deep interest in the potential of blockchain technology.

Thrive in a fast-paced environment, knowing when to seek help and when to take initiative.

Motivated by results and self-driven.

Nice to have

Experience launching large projects to production and maintaining high service quality.

Proficiency in Agile team methodologies.

Knowledge of blockchain architecture and internal workings.

Who We Are:

Our aim is to facilitate the world's shift towards web3. Established in 2019, the focus of Horizen Labs is to construct a safer and fairer digital realm at the core of the decentralization movement. Concentrating on tackling real-world predicaments, our primary objective is to generate a meaningful and quantifiable impact on productivity, transparency, and revenue creation. At Horizen Labs, our personnel are our most valuable resource, and we are fostering a culture of empowered individuals who are enthusiastic about bringing their ideas to fruition. We seek imaginative individuals to join our team of the brightest minds in the blockchain domain. You will encounter the excitement of becoming part of a swiftly expanding and creativity-driven firm. Understanding that diversity fuels innovation and engagement critical for creating an exceptional product. We work within a hybrid model with a globally dispersed workforce collaborating with our studio offices in New York City, NY, and Milan, Italy. This framework offers us the flexibility to source talent worldwide. Are you prepared to assist us in altering the future with the latest groundbreaking blockchain technology? Join us!

We seek an adept and seasoned Principal Engineer to undertake a pivotal role in the design, development, and optimization of our Web 3.0-enabled blockchain ecosystem. As a senior technical figure, your influence is extensive and far-reaching, forming technical strategies, coordinating the company's technical path, and spearheading authentic advancement across broader blockchain/crypto/software communities. Remaining finely attuned to day-to-day execution activities, you will propel crucial products across different product teams, all while adhering to elite coding principles and practices. Our global team operates within a motivating and inventive atmosphere, where technical proficiency and experience are instrumental in creating cutting-edge blockchain technology. You will join a close-knit, profoundly motivated team of highly technical minds amidst an ethos of transparency and practicality, addressing challenging issues spanning software engineering, systems design, cryptography, and computing.

Responsibilities:

Steer the architecture, design, and implementation of assorted components of our blockchain ecosystem spanning core L1 protocol components, L2 scaling frameworks, cryptographic toolkits, off-chain and multi-chain interactions, APIs, node infrastructure, and usability.

Play a significant role in defining with authority the direction and objectives for the entire engineering setup, particularly in terms of project impact, quality, and engineering efficiency.

Continuously shape and refine our overarching technical roadmap to expand across varied dimensions of blockchain integrations, applications, and engineering functions as we expand.

Transform imaginative blockchain products from concept to reality by collaboratively working with senior engineers, cryptographers, and product managers to competently resolve uncertainties, navigate through trade-offs, and guarantee smooth, punctual software deployments.

Steer engineering culture by elevating the technical standards, accelerating pace, and advocating for enhanced code quality and engineering efficiency.

Proactively pinpoint areas of technical strategic potential, embarking on intelligent risks aligned wholly with the company's mission and product objectives.

Educate, mentor, nurture, and extend guidance to engineering managers, senior/junior engineers, product managers, project managers, and senior leadership.

Requirements:

Ten years or more of software development experience, particularly in designing, constructing, and magnifying multiple operational services, components, and infrastructures.

Five years or more of experience in a technical leadership role (like Senior/Staff Engineer), steering technical direction, shepherding critically important projects to Mainnet/Production, and fortifying multiple operational services over several years as they adapted to rise in user demand and hurdles.

Extensive hands-on proficiency with at least one major blockchain protocol (Ethereum, Bitcoin, Polkadot, Cosmos), encompassing applied cryptography, consensus algorithms, UTXO/Account-based models, rollups, zero-knowledge proofs, zkEVM/zkVMs, peer-to-peer network topologies, and bridging mechanisms.

Bachelor's, Master's, or Ph.D. degree in Computer Science, Mathematics, or a related field.

Inclination for and ardor concerning programmable blockchains and their influence in the forthcoming landscape of finance, privacy, and digital identity.

Exceptional communication skills (both oral and written) to convey articulately the composition of an entire system, impact peers concerning a broad spectrum of technical and business resolutions, and formulate technical specifications aiding other engineers' implementation.

Innate readiness to delve into grasping, debugging, and refining any stratum of the stack.

Preferred Qualifications:

Proficiency in Rust and/or C++, having steered multiple prosperous projects into Mainnet.

Engagement with cryptographers to render cryptographic primitives and protocols into competent and secure Production-grade code.

Solid comprehension of cryptographic primitives, protocols, and algorithms including zero-knowledge proving systems, homomorphic encryption, and secure multiparty computation.

Deep immersion in the latest cryptographic, zero-knowledge proofs, and blockchain protocol advancements, and demonstrated capability to assimilate pertinent discoveries into real-world products for the company.

Company Overview:

Our mission at Horizen Labs, founded in 2019, is to facilitate the world's transition to web3. We are dedicated to building a more secure and fair digital world, working at the forefront of the decentralization revolution. We strive to make a meaningful impact in productivity, transparency, and revenue generation. At Horizen Labs, our team is our most valuable asset. We foster a culture of empowerment, where individuals can bring their ideas to life. We are seeking talented and creative individuals to join our team and be a part of our fast-growing and innovative company. We value diversity as it drives innovation and engagement to create exceptional products. With a hybrid model and global workforce, including satellite offices in New York City, NY, and Milan, Italy, we have the flexibility to attract talent from anywhere. Join us and help shape the future with cutting-edge blockchain technology!

We are currently seeking a skilled and motivated engineer to contribute to the development of the cryptographic infrastructure for our Web 3.0-enabled blockchain ecosystem. In this role, you will be responsible for designing and implementing blockchain scaling solutions using zero-knowledge cryptography. The objective is to significantly reduce the costs associated with deploying products on the blockchain. You will work in an international team, in a stimulating and innovative environment, where technical expertise drives the development of cutting-edge blockchain technology. Join our small but highly skilled team of passionate individuals in an open, pragmatic, and owner-driven culture that tackles challenging problems across software engineering, systems design, cryptography, and computing.

Responsibilities:

Design and implement cryptographic solutions for blockchain-based applications, utilizing modern cryptography techniques such as zero-knowledge proofs (ZK), multi-party computation (MPC), and fully homomorphic encryption (FHE).

Take technical ownership of new systems, identifying areas for innovative research and development.

Write reusable, testable, and efficient code, following best practices and emphasizing security.

Play a key role in shaping the company's future by being involved in strategic decision-making processes and witnessing the impact of your contributions.

Attend conferences and identify opportunities within the on-chain ecosystem.

Requirements:

Minimum of 5 years of experience in software engineering.

Passion for developing secure, reliable, well-documented, and performant software.

Flexibility to work in an agile environment.

Experience with implementing cryptographic solutions, including low-level mathematics and knowledge of common attacks.

Strong understanding of applied cryptography and interest in developing effective, practical cryptographic solutions for complex systems and innovative products.

Ability to propose novel approaches based on the latest cryptography research.

Experience in technical writing and documentation.

Clear communication skills, including the ability to articulate abstract ideas.

Enjoy mentoring junior developers and sharing your expertise.

Collaborate effectively with cross-functional teams within engineering, marketing, and other support functions to deliver top-notch solutions.

Self-motivated, independent, and humble.

Preferred Qualifications:

Experience with system languages such as C, C++, Go, and/or strongly typed programming languages like OCaml, Haskell, Rust.

Theoretical and practical knowledge of advanced zero-knowledge solutions such as Plonk, STARKs, zk(E)VMs, and recursive proof composition.

Theoretical and practical experience with blockchain-based systems, with a focus on Ethereum and/or other EVM-based solutions.

Optimizing low-level mathematical operations, including assembly level programming.

Familiarity with GPU/FPGA programming is a plus.

In compliance with New York City's Pay Transparency Act, the annual base salary range for this position in NYC is USD $140,000 to USD $170,000. The displayed salary range represents the minimum and maximum target for new hire salaries in this location. Salary ranges consider factors such as role, level, experience, and location.

Horizen Labs is an equal opportunity employer.

At Horizen Labs, we provide reasonable accommodations for individuals with disabilities. If you require an accommodation during the employment process, please email us at recruiting@horizenlabs.io and provide details about your request and contact information.