Protocol Engineer Job at Chainway Labs

Protocol Engineer

We are looking for a Protocol Engineer to join our team and work on blockchain i...

Location

Salary:

Not provided

Serokell

Expiration Date

Until further notice

Requirements

Commercial experience in core blockchain development
Strong understanding of blockchain internals, such as consensus mechanisms, transaction lifecycle, mempool, block production and validation, P2P networking
Knowledge of cryptography fundamentals, including hashing, signatures, Merkle trees, and public/private key systems
Solid knowledge of distributed systems, concurrency, and performance-oriented backend development
Experience developing or maintaining protocol-level components, nodes, clients, validators, or other blockchain infrastructure
Experience with at least one system-level programming language such as Rust, Haskell, Go, C++, etc.
3+ years of professional software engineering experience
Strong grasp of computer science fundamentals, algorithms and data structures
Ability to work independently in a fully remote environment
Readiness to participate in code reviews and technical discussions

Job Responsibility

Develop robust, scalable, and maintainable blockchain infrastructure and protocol-level components
Work on the implementation and improvement of core blockchain logic, including networking, validation, execution, synchronization, storage, or consensus-related systems
Participate in architecture discussions and help make technical decisions for complex distributed systems
Debug and resolve technical issues, identify bottlenecks, and implement effective solutions
Write tests, review code, and contribute to high engineering standards across the project
Collaborate closely with other engineers in a remote international team

What we offer

Competitive salary
Attractive international projects
Participation in the leading world conferences
International teams and multicultural environment
Fully remote work and flexible working hours
Possibility to take days off whenever you need
Investment in your professional and career growth, which will correspond to wage growth
Mentoring and training
Therapy sessions to support your well-being
Opportunity to contribute to one of the functional programming industry’s leading blogs

Staff Protocol Engineer

As a Staff Engineer within the Polygon PoS engineering team, you’ll play a missi...

Location

Salary:

Not provided

Polygon Labs

Expiration Date

Until further notice

Requirements

7+ years of backend or protocol engineering experience, with 2+ years in senior or staff-level roles
Deep experience working in Golang, ideally within distributed systems, consensus, or blockchain infrastructure
Experience contributing to or working with Ethereum clients (e.g., Geth) or Cosmos-based stacks (e.g., Cosmos SDK, CometBFT)
Demonstrated ability to lead architecture, code quality, and complex system design in fast-paced engineering teams
Comfortable working asynchronously with distributed teams in EMEA, US East Coast, or adjacent time zones

Job Responsibility

Lead design and prototyping of long-term solutions to address scalability, latency, and state growth challenges on the Polygon PoS network
Drive architectural decisions across the PoS codebase, contributing to Geth, Cosmos SDK, or CometBFT-based systems as needed
Identify and resolve deep technical issues in protocol behavior, consensus, and state sync
Champion code quality, documentation, testing, and developer best practices across the team
Mentor and support engineers across the stack to elevate the overall engineering bar
Collaborate cross-functionally with protocol researchers, DevOps, security, and ecosystem teams to ship robust upgrades to the live network

What we offer

Remote first global workforce
Industry leading Medical, Dental and Vision health insurance
Company matching 401k with 3% match
$1,500 Home Office Set Up Allowance (life-time max)
$75 Monthly internet or phone reimbursement
Flexible Time Off
Company issued laptop
Egg freezing, mental health, and employee wellness benefits

Fulltime

Senior Protocol Engineer

Chainway Labs is seeking a Senior Protocol Engineer to join our team at Citrea, ...

Location

Salary:

Not provided

Chainway Labs

Expiration Date

Until further notice

Requirements

A minimum of 5 years of hands-on experience in protocol development
Proficiency in Rust
Exceptional communication skills in English, both written and spoken
An aptitude for quick thinking, problem-solving, and clearly and effectively expressing solutions
'That Guy' or 'That Gal' Mindset: We value individuals who exhibit a proactive approach to tasks and challenges, fearlessly conquering any obstacles in their path

Job Responsibility

Design, develop, and maintain cryptographic protocols for Citrea’s rollup and bridge architecture
Collaborate with engineering and product teams to ensure seamless protocol integration
Build and optimize core bridge components such as state proof generation, verifier binaries, and signature collection
Ensure scalability, security, and performance across the bridge and rollup infrastructure
Lead testing efforts to validate protocol correctness and bridge reliability

What we offer

Competitive compensation package, including equity options
Remote work setting
Engaging community activities that foster team bonding and collaboration
A welcoming atmosphere where every team member's opinion is valued
A dynamic team environment filled with bright, young, and dedicated colleagues, offering an enriching collaborative experience

Fulltime

Senior Protocol Engineer

We're seeking a Senior Protocol Engineer to join the Protocol team. You’ll play ...

Location

United States

Salary:

200000.00 - 230000.00 USD / Year

Magic

Expiration Date

Until further notice

Requirements

5+ years as a Full‑Stack Engineer or equivalent experience, with a focus on: Protocol: Production-grade Rust services (5+ years)
EVM: Solidity (2+ years)
Proven track record at scale - building high‑traffic, low‑latency systems (e.g., handling tens of millions of user requests)
Strong proficiency with blockchain fundamentals (EVM – i.e memory/storage, gas model), and understanding of core EIPs on EVM
Strong system design skills for efficiency and scalability of the system
Experience of working on building blockchain protocols (L1, L2s, bridges, oracle networks, relayers, bundlers, solvers, etc.)
Strong understanding of security best practices both in Rust based systems and Solidity contracts
Excellent communication, mentorship, and autonomous execution at a senior engineering level
Proficiency with AI coding tools (Copilot, Cursor, Claude code, etc.)

Job Responsibility

Architect and implement protocol features end-to-end. From building protocol level features in Rust to developing middleware contracts in Solidity
Build, optimize, and scale services and contracts
Work closely with product and security teams (internal + external) to ensure our systems and contracts meet our security standards
Lead and collaborate as appropriate with other engineers, drive code reviews, set best practices for maintainable, scalable architecture

What we offer

Remote-first culture with flexible working hours
Stock options and token grants
99% company-paid medical*, dental and vision insurance
100% company-paid life and disability insurance
401(k) plan (US) or pension plan (CAN)
$3,600 annual reimbursement for remote work, wellness, and professional development
Flexible time off
Up to 12 weeks of paid parental leave

Fulltime

Sr. Protocol Engineer, Product

We’re looking for an experienced protocol engineer to join our Trade team, build...

Location

United States

Salary:

200000.00 - 300000.00 USD / Year

Zora

Expiration Date

Until further notice

Requirements

4+ years of experience shipping production-level contracts or protocol features
Experience with DeFi protocols
Deep understanding of EVM
Familiarity with Git, Foundry, Hardhat and modern solidity toolchains
Experience with formal/invariant thinking, MEV considerations, upgrade safety, and incident response
Comfort moving across the stack when needed (TypeScript / React / Next / Python)
High degree of ownership and autonomy
Strong communication and collaboration skills, across both technical and non-technical teams

Job Responsibility

Contribute to the Zora protocol by designing and implementing smart contracts
Handle maintenance, security review, and full protocol lifecycle
Write adversarial tests (fuzzing, invariant/property-based testing) and maintain a security-first mindset in development and review
Partner with auditors and respond to findings
drive fixes through deployment
Participate in RFC and code review process with a security and reusability mindset
Collaborate across engineering teams to integrate smart contracts across the stack
Communicate status, updates, blockers, etc., to cross-functional stakeholders

What we offer

Remote-First Culture: Work from anywhere in the world!
Competitive Compensation: Including salary, pre-IPO stock options, token compensation, and additional financial incentives
Comprehensive Benefits: Robust healthcare options, including fully covered medical, dental, and vision for employees
Retirement Contributions: Up to 4% employer match on your 401(k) contributions
Health & Wellness: Free memberships to One Medical, Teladoc, and Health Advocate
Unlimited Time Off: Flexible vacation policies, company holidays, and recharge weeks to prioritize wellness
Home Office Reimbursement: To cover home office items, monthly home internet, and monthly cell phone (if applicable)
Ease of Life Reimbursement: To cover everything from an Uber home in the rain, childcare, or meal delivery
Career Development: Access to mentorship, training, and opportunities to grow your career
Inclusive Environment: A culture dedicated to diversity, equity, inclusion, and belonging

Fulltime

Lead verification Engineer - high speed protocol

This exciting position in the AMD Data Center Networking Technology Solutions gr...

Location

India , Hyderabad

Salary:

Not provided

AMD

Expiration Date

Until further notice

Requirements

Masters/ Bachelors in EE/EC/CS with 5+ years of experience in IP/SoC/ASIC Verification
Understanding product specifications and deriving the TB architectures
Developing verification plan, test plan, coverage plan, assertions
Developing block level and multi block level verification environments & reusable verification components based on SV/UVM methodology
Coverage metrics to ensure conformity, running regressions, debug test failures and regression management
Knowledge and working experience with any of the complex protocols like PCIe/Ethernet/DMAs/Cryptography/Others – an advantage
Experience in Scripting languages like Perl or Python
Knowledge in AMBA AXI, APB..etc - an advantage
Ability to work collaboratively with other team members and have good ownership and accountability
Assisting validation teams with on board-level test issues, educating design teams on verification methodology

Job Responsibility

Take an independent verification role in developing TB architecture definition and TB infrastructure/test coding development for Data Center Networking IP/Systems
Work as part of a team which is responsible for IP, Subsystem, Systems design verification in the data center networking domains
Participate in providing inputs during solution architecture
Responsible for creating the initial product verification methodology, selecting the testing environments, and developing testing plans to test functionality, performance

New

Agentic AI Engineer Co-Op

An Agentic AI Engineer designs, builds, and deploys autonomous AI systems that c...

Location

Salary:

Not provided

Campbell Soup Company

Expiration Date

Until further notice

Requirements

2+ years in AI/ML system design, deployment, or autonomous agent development
Programming: Proficiency in Python (and sometimes Java, C#) for AI/ML solution development
Agent & Workflow Expertise: Experience with agent orchestration frameworks and multi-agent communication protocols
RAG & LLM Integration: Hands-on with RAG architectures, evaluation methodologies, and LLM integration
Cloud & DevOps: Experience with cloud platforms (e.g., Azure, AWS) and CI/CD pipelines
Governance & Compliance: Understanding of responsible AI, security, and compliance in regulated domains (e.g., retail)

Job Responsibility

Design & Develop Agentic Systems: Build intelligent agents capable of autonomous planning, reasoning, and task execution, often using LLMs (e.g., GPT-class, LLaMA), multi-modal models, and autonomous workflows
Orchestration & Frameworks: Implement agent orchestration using frameworks like LangChain, AutoGen, CrewAI, Semantic Kernel, or custom solutions
Retrieval-Augmented Generation (RAG): Design and optimize RAG pipelines for enhanced reasoning with external knowledge, including document ingestion, chunking, embeddings, vector stores, and retrieval ranking
Tool & Memory Integration: Develop agents that call APIs, databases, and other tools, maintain memory, and adapt based on outcomes
Evaluation & Monitoring: Create evaluation frameworks for accuracy, grounding, latency, and cost
build observability for agent behavior and failure modes
Model Adaptation: Fine-tune or adapt foundation models (e.g., via LoRA, adapters) for domain-specific use cases
Production Deployment: Deploy GenAI/agentic systems in cloud-native environments with CI/CD, versioning, and runtime safeguards
Cross-Functional Collaboration: Work with data scientists, ML engineers, product teams, and governance/compliance stakeholders

What we offer

medical
dental
short and long-term disability
AD&D
life insurance
matching 401(k) plan
unlimited sick time
paid time off
holiday pay
free access to the fitness center (if in WHQ)

New

HSE Manager

Purpose of the Job: HSE Manager (Health, Safety, and Environment Manager) plays ...

Location

Salary:

Not provided

Aramex

Expiration Date

Until further notice

Requirements

Bachelor's degree in occupational health and safety, Environmental Science, Engineering, Industrial Hygiene, or a related field
Professional certifications such as Certified Safety Professional (CSP), Certified Industrial Hygienist (CIH), or equivalent are highly desirable
Minimum of 5-7 years of experience in health, safety, and environmental roles, preferably in a managerial capacity
Proven experience in conducting risk assessments and implementing safety programs
Strong background in regulatory compliance and incident investigation
Experience in developing and delivering HSE training programs

Job Responsibility

Ensure compliance with local legislation, including OSHA, ISO standards, and other relevant regulations
Conduct regular audits, inspections, and safety drills to ensure adherence to HSE protocols
Identify potential hazards, conduct risk assessments, and develop control measures to mitigate risks
Review and update risk assessments as necessary, ensuring that safety precautions are effectively communicated to all relevant parties
Investigate accidents, incidents, and near-misses, preparing detailed reports, and recommending corrective actions to prevent recurrence
Design and deliver HSE training programs to educate employees on safety practices, emergency procedures, and workplace hazards
Promote safety awareness and a strong safety culture across the organization through workshops, safety briefings, and regular communication
Develop and maintain emergency response plans and procedures, including fire drills, first aid, evacuation plans, and crisis management strategies
Act as the lead during emergencies, coordinating with internal teams and external authorities to ensure effective responses to incidents
Conduct safety performance evaluations and recommend improvements to enhance overall safety standards within the organization

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Protocol Engineer

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