---
title: 'Backend Software Engineer - Incubations at Sei Labs'
canonical: 'https://feeny.ai/job/backend-software-engineer-incubations-sei-labs-new-york-tpeqss63vn86'
type: 'job'
last_seen: '2026-09-07'
---

# Backend Software Engineer - Incubations at Sei Labs

- **Company:** Sei Labs
- **Location:** New York, NY
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-01-08
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.ashbyhq.com/sei-labs/0111566c-1da6-432b-b813-f5b0a12bdcf0

## Job description

## 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 https://www.sei.io/ and docs https://www.docs.sei.io/dev-intro for more details.

Incubations Engineering at Sei

Sei Labs is looking for a Fullstack Engineer to help shape the future of Web3 by empowering innovative, high-impact applications across the Sei Blockchain. You'll work with a team at the forefront of blockchain technology, collaborating closely with our ecosystem partners to develop cutting-edge dApps spanning diverse Web3 domains (from DEX’s and games, to DePin, AI and beyond). If you're passionate about constant learning, rapid development, and making a tangible impact in a fast-paced, community-first environment, this is a unique opportunity to push the boundaries of what's possible in decentralized technology.

## Requirements

- 3+ years of experience with full-stack development, with a focus on backend and API's
- 1+ years working in Web3 with production grade Solidity contracts
- Proficiency with one of Go / Typescript
- Experience with database management using SQL, NoSQL, or similar technologies
- Experience with cloud technologies such as AWS, Terraform

## About Sei Labs

## Company Overview
- **One-liner**: Sei Labs is a product-driven research and development lab building the high-performance Sei blockchain, the fastest EVM-compatible Layer 1 blockchain designed for digital asset trading and global markets.
- **Entity Type**: Private (Venture-backed; $35M total funding)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2021
- **Founders**: Jeff F. (Co-Founder), Jayendra Jog (Co-Founder)

## Core Business
- **Primary Industries**: Blockchain Infrastructure, Cryptocurrency, FinTech/DeFi
- **Target Customers**: B2B — blockchain developers, trading firms, decentralized exchanges, and consumer-facing Web3 application builders
- **Mission**: To build category-defining products and global-scale blockchain infrastructure, unlocking a new design space for consumer-facing applications and onboarding the next billion users into a vibrant ecosystem.

## Products & Services
- **[Sei Blockchain (Sei Network)]**: The fastest EVM-compatible Layer 1 blockchain, purpose-built for trading. Features sub-400ms finality, 200K TPS throughput, and the proprietary Autobahn consensus engine. It is designed to support stablecoins, payments, DeFi, tokenized assets, and AI agent economies.
- **[Monaco Trading]**: A quantitative trading platform and infrastructure project incubated by Sei Labs.
- **Incubations Program**: An internal arm that works with founders and teams dedicated to open access and programmable commerce, helping launch new blockchain-native products.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed.
- **Key Metric**:
    - **Annual Revenue**: $1.5M (estimated by LinkedIn).
    - **Total Funding**: $35M across 2 rounds.
        - Seed Round (Aug 2022): $5M from 4 investors.
        - Venture Round (Apr 2023): $30M from 10 investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders.
        - Venture Round (Nov 2023): Additional round from 1 investor.
- **Growth Signals**: The Sei blockchain has processed over **5 billion total transactions**. The team has grown ~13.7% year-over-year to 54 employees. Active job postings increased 120% month-over-month, signaling strong hiring momentum. The network is integrated with leading developer tooling and is backed by global infrastructure partners including Visa (via the Sei Foundation).

## Competitive Advantages
- **Performance Moats**: The Sei blockchain holds a performance advantage with sub-400ms finality and 200K TPS, significantly faster than most competing Layer 1 chains. Its Autobahn consensus mechanism (multi-proposer architecture) provides a 50x throughput improvement over Tendermint-based chains.
- **Trading-Specific Design**: Unlike general-purpose blockchains, Sei is purpose-built for digital asset markets with native order book optimizations, making it the go-to infrastructure for trading applications.
- **Top-Tier Backing**: Backed by elite institutional investors from both traditional finance (Jump Crypto, Hudson River Trading, Flow Traders) and crypto-native funds (Multicoin, Coinbase Ventures).

## Strategic Focus
- **Scaling to "Giga"**: The team is actively developing "Sei Giga," a next-gen upgrade aiming to support the world's largest payment, trading, and consumer AI platforms simultaneously without bottlenecks.
- **Ecosystem Expansion**: Focused on onboarding EVM developers via full compatibility, builder grants, and a thriving community. Key focus areas include Stablecoins & Payments, DeFi, Tokenized Assets, and AI/Agentic Economies.
- **Global Markets**: Positioning the Sei blockchain as "The Onchain Standard for Global Finance," targeting institutional adoption.

## Why Work Here
- **Team & Culture**: Described as a "product-driven research & development lab" staffed by veterans from Google, Goldman Sachs, Robinhood, Nvidia, and Databricks. The culture is heavily technical and research-oriented, with a focus on open-source development.
- **Work Policy**: Hybrid/On-site. Offices in **San Francisco (HQ)** and **New York City**. Job listings specify "Hybrid" or "Remote or Hybrid," indicating flexibility, though most roles require some in-office presence.
- **Notable Perks**: Work at the frontier of blockchain scalability and speed. Employees get to work on extremely high-impact infrastructure problems (consensus, storage, trading systems) that handle billions of transactions.
- **Engineering Culture**: Strong emphasis on R&D. The team is split ~18% technical (engineers, researchers) with active recruiting for Protocol Engineers, Platform Engineers, and Quantitative Developers. The work is on "category-defining" global-scale blockchain infrastructure.

## Sources
1. [Official Sei Labs Website](https://www.seilabs.io/)
2. [Sei Network (Blockchain Product)](https://www.sei.io/)
3. [LinkedIn Company Page](https://www.linkedin.com/company/seilabs)
4. [Built In Profile & Reviews](https://builtin.com/company/sei-labs)
5. [Ashby Careers Page](https://jobs.ashbyhq.com/sei-labs)

## Other roles at Sei Labs

- [Product Manager - Growth](https://feeny.ai/job/product-manager-growth-sei-labs-new-york-6mfjqz2c9ggp) — New York, NY
- [Protocol Software Engineer - Storage](https://feeny.ai/job/protocol-software-engineer-storage-sei-labs-new-york-a8d7nr52afsy) — New York, NY
- [Sr. Software Engineer - Trading Infrastructure](https://feeny.ai/job/sr-software-engineer-trading-infrastructure-sei-labs-new-york-p2xr5p0veban) — New York, NY
- [Senior / Staff Engineer - Platform](https://feeny.ai/job/senior-staff-engineer-platform-sei-labs-new-york-57wn2p2vdbwd) — New York, NY
- [Fullstack Software Engineer - Incubations](https://feeny.ai/job/fullstack-software-engineer-incubations-sei-labs-new-york-rese9pqp72rx) — New York, NY
- [Protocol Software Engineer - Consensus](https://feeny.ai/job/protocol-software-engineer-consensus-sei-labs-new-york-6vsy8a4fbn1a) — New York, NY