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About Sei Labs
Sei Labs builds open sourced technology for the high-performance Sei Blockchain, the first parallelized EVM Layer 1 blockchain designed to scale with the industry. The unique optimizations built into Sei enable Web3 applications to reach Web2 level scale and performance, driving the mass adoption of digital assets.
Our teams are comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans dedicated to onboarding the next billion users onto a vibrant ecosystem of applications.
Sei Labs has raised over $30M from top investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders.
Check out our website and docs for more details.
Platform Engineering at Sei
We're building Sei into a world-class L1 for decentralized finance. This role exists to make the safe path the default path for every engineer on the team — observable, tested, reversible, and fast. You'll be a foundational hire on a small Platform Engineering team with a broad mandate.
What you'll own
- Infrastructure & scale testing. Build and maintain Docker/Kubernetes harnesses for repeatable stress and scale testing, used by every core team as a pre-release gate. Run our multi-cloud footprint with explicit reliability and cost targets.
- Release engineering & CI/CD. Consolidate CI/CD into reusable, standardized workflows. Own version tagging, hotfix paths, PR review scaffolding, and the full release lifecycle.
- Observability. Single pane of glass for metrics, traces, and logs — correlated by block height, powered by OpenTelemetry. HA Prometheus, ELK, defined SLOs on every critical service.
- Performance & chaos testing in CI. Automated chaos and performance tests gating 100% of releases. Regressions caught before merge, not by users.
- Security & incident response. Run the bug and vulnerability workflow end to end — auditors, Immunefi, triage, postmortems. Every incident produces a new test, metric, or runbook.
- 5+ years building production systems at scale. You've designed and shipped infrastructure that other engineers rely on, and you understand it end to end — not just the surface API.
- Security fundamentals. Threat modeling, common vulnerability classes, and how security work integrates into a development pipeline. You don't treat audits as a checkbox.
- Distributed consensus understanding. You can reason about consensus protocols at the algorithmic level — safety vs. liveness, fault assumptions, the failure modes that show up in practice. You've debugged something non-trivial at this layer or studied it deeply enough to.
- Benchmarking & performance bottleneck analysis. You design benchmarks that isolate variables. You profile under realistic load. You can walk into an unfamiliar system, find the bottleneck, and explain why it's the bottleneck before proposing a fix.
- Live incident response. You've operated systems where outages had real consequences. You triage under pressure, communicate clearly, and turn postmortems into structural fixes that don't quietly expire.
- End-to-end systems thinking. You've built systems, not just glued tools together. You have opinions on monitoring stacks, what belongs in CI vs. CD vs. runtime, and when to reach for chaos testing — and you can defend them.
- Blockchain or web3 infrastructure experience, especially with consensus, mempool, or storage layers.
- Multi-cloud cost programs that didn't compromise reliability.
- Experience integrating AI-assisted security tooling into a development pipeline.
How much do crypto jobs pay?
The salaries for cryptocurrency jobs vary widely depending on the specific role, industry, location, experience, and other factors
However, in general, cryptocurrency jobs tend to pay relatively well compared to other industries
Here are some examples of average salaries for popular cryptocurrency jobs:
- Blockchain Developer: The average salary for a blockchain developer in the US is around $105,000 per year, with salaries ranging from $60,000 to $180,000 per year.
- Cryptocurrency Analyst: The average salary for a cryptocurrency analyst in the US is around $85,000 per year, with salaries ranging from $50,000 to $135,000 per year.
- Cryptocurrency Trader: The average salary for a cryptocurrency trader in the US is around $95,000 per year, with salaries ranging from $40,000 to $180,000 per year.
- Marketing and PR Manager: The average salary for a marketing and PR manager in the US is around $77,000 per year, with salaries ranging from $43,000 to $128,000 per year.
- Crypto Lawyer: The average salary for a crypto lawyer in the US is around $120,000 per year, with salaries ranging from $70,000 to $200,000 per year.
Is crypto jobs legit?
Yes, cryptocurrency jobs are generally legitimate, and the industry has created many job opportunities over the years
As the cryptocurrency industry has grown, it has attracted a significant number of legitimate businesses and organizations that require talented individuals to work in various roles, such as blockchain development, cryptocurrency analysis, trading, marketing, public relations, law, and compliance, among others
However, as with any industry, there are also fraudulent job postings and scams that try to take advantage of people looking for work
It is essential to be cautious and thoroughly research any company or job opportunity before applying or accepting a position
You should always verify that the job posting is from a legitimate company and never provide sensitive personal or financial information without ensuring that the opportunity is genuine
To avoid scams, you can do the following:
- Research the company before applying for a job or accepting a job offer. Check the company's website, social media, and reviews to ensure that it is legitimate.
- Verify the job posting and contact information. Ensure that the email, phone number, or website listed in the job posting is valid.
- Don't pay for a job or training. A legitimate company will not ask you to pay for a job or training.
- Be wary of job offers that sound too good to be true. If a job offer promises a high salary or unrealistic benefits, it could be a scam.
What careers are there in crypto?
The market of cryptocurrency jobs has grown rapidly in recent years, creating a wide range of career opportunities in various sectors
Here are some of the careers in crypto that you can explore:
- Blockchain Consultant: Consultants offer advice to businesses and organizations that are exploring the implementation of blockchain technology. They help with strategic planning, implementation, and optimization.
- Blockchain Developer: Developers are responsible for creating and maintaining blockchain-based applications and smart contracts. They need to have experience in coding languages like Solidity, C++, and Python.
- Crypto Compliance Officer: These professionals ensure that businesses operating in the crypto industry comply with relevant laws and regulations.
- Crypto Journalist: A journalist who specializes in reporting on cryptocurrencies and the blockchain industry. They write news articles, feature stories, and analysis.
- Crypto Lawyer: Lawyers who specialize in the crypto industry help navigate complex regulatory and legal frameworks.
- Cryptocurrency Analyst: An analyst researches and analyzes cryptocurrencies and the market trends. They provide insights on trading, investments, and risk management.
- Cryptocurrency Educator: Educators help individuals and businesses understand the concepts and technicalities of cryptocurrencies and the blockchain technology.
- Cryptocurrency Trader: Traders buy and sell cryptocurrencies on exchanges, making profits by predicting market movements.
- Marketing and PR Manager: These professionals are responsible for promoting crypto projects, managing the brand's online presence, and building community engagement.
Can you make a career out of cryptocurrency?
Yes, it is possible to make a career out of cryptocurrency
The cryptocurrency industry has grown rapidly in recent years, and there are now many job opportunities available in various sectors related to blockchain and digital currencies
Some of the most common career paths in cryptocurrency include blockchain development, cryptocurrency trading, cryptocurrency analysis, marketing and public relations, and cryptocurrency journalism
There are also roles in cryptocurrency consulting, law, and compliance, among others
To pursue a career in cryptocurrency, it is important to have a strong understanding of the technology and how it works
This may require education or training in computer science, economics, or finance, depending on the specific career path you choose
Additionally, keeping up with the latest developments in the industry is crucial to stay competitive and relevant
As with any career, success in the cryptocurrency industry also requires a strong work ethic, dedication, and a willingness to continuously learn and adapt to new developments
While the industry is still relatively new and rapidly evolving, it has the potential to offer exciting and rewarding career opportunities for those who are passionate about the technology and willing to put in the effort to succeed.
What is crypto jobs?
Crypto jobs refer to employment opportunities in the cryptocurrency industry
This can include jobs related to the development of cryptocurrency technology, such as blockchain development, as well as jobs in crypto-related companies, such as exchanges or payment processing firms
Some examples of crypto jobs include blockchain engineers, crypto traders, and compliance specialists
These jobs often require specialized knowledge and expertise in the field of cryptocurrencies and blockchain technology.