Software Engineer - Java (Quant Platform - Trading Services)
About Us
At OKX, we believe that the future is being shaped by technology. Established in 2017, OKX is a leading global platform for cryptocurrency spot and derivatives trading. We use blockchain technology to transform the financial ecosystem by offering a wide range of innovative products, solutions, and trading tools. Trusted by over 20 million users worldwide across 180 regions, OKX aims to provide an empowering platform that allows individuals to explore the world of crypto. In addition to our exceptional DeFi exchange, we also have OKX Insights, a research arm that stays at the forefront of the latest trends in the cryptocurrency industry. With our extensive range of crypto products and services, and our commitment to innovation, we envision a world of financial access supported by blockchain and decentralized finance.
We value our people as much as we value technology. Our inclusive culture fosters teamwork, embraces change, and promotes integrity. We are dedicated to creating a friendly, rewarding, and diverse environment for all OKX team members. Regardless of your background, everyone at OKX feels valued, respected, and has equal opportunities for development and success - we want to bring out your best.
About the Role
The Quant Platform at OKX provides cutting-edge technology solutions that cover all aspects of crypto trading. We develop low-latency connectivity for global crypto venues, offer strategy services for automated pricing and trading bots, capture and analyze high-frequency data, and provide a state-of-the-art micro frontend for trading management.
If you are a talented technologist who is passionate about the potential of crypto trading and is interested in fully-automated algorithmic bots, we would love to hear from you.
We are currently seeking a Java Software Engineer to join our Quant Platform Trading Services team. In this role, you will have the opportunity to be involved in every aspect of a high frequency, low latency trading system and its evolution. This is a unique chance for you to contribute your expertise and grow with the industry. You will collaborate closely with product managers, engineers, and other cross-functional team members to deliver remarkable features.
Responsibilities
- Develop and maintain market data and trading connectivity to global crypto trading venues such as CEX, DEX, and single/multiple dealer platforms.
- Develop and support the Market Data Service Cluster and Trading Service Cluster, using our in-house low-latency transport layer based on Aeron and Chronicle Queue.
- Develop and maintain a config and reference data management system that provides a unified data model and process for both trading and risk management services.
- Measure and monitor internal market data and order latency systematically.
- Continuously improve the system to enhance stability, scalability, and robustness, with automatic recovery ability for 24x7 crypto trading.
Requirements
- Strong educational background in STEM (Science/Technology/Engineering/Mathematics).
- Excellent logical thinking and problem-solving skills.
- Proficiency in high-performance Java programming and asynchronous programming patterns.
- Familiarity with distributed systems and microservice architecture.
- Experience in automated testing and continuous integration.
- Willingness to learn all aspects of trading products in the financial and crypto markets, including spot, futures, swaps, options, structured products, and DeFi trading.
Note: Links have been preserved as per the provided job description.
🚀 Hiring Solana Developers – Pump.fun
Hi,
I’m reaching out from Valiant Solution LLC. We’re currently working with a U.S.-based client who is an experienced crypto professional and we’re looking for a skilled Solana developer to help build a platform similar to Pump.fun.
We already have a basic codebase from GitHub that the developer can start from, so the project will mainly involve customizing, improving, and completing the functionality rather than building everything from scratch.
Key requirements:
• Experience with Solana smart contracts (Rust / Anchor)
• Knowledge of token launch mechanics and bonding curves
• Experience with Solana Web3 integrations
• Ability to work with an existing codebase and extend it
If this sounds interesting, please reply with:
• Your Solana development experience
• Links to relevant projects or GitHub
• Your availability for a quick discussion
Looking forward to connecting.
Best regards,
Valiant Solution LLC
Junior/Mid Decentralized Infrastructure Engineer
Help build and scale decentralized infrastructure: contribute to compute networks, protocols, storage layers, and orchestration tools that power AI agents and open digital systems. You’ll write code, run tests, fix bugs, and ship real features fast.
Skills & Requirements:
1–3 years in blockchain infra, distributed systems, or high-scale compute (or strong personal projects)
Solid Python / Rust / Go skills
Interest in libp2p, IPFS, GPU orchestration, or decentralized compute
Quick learner who ships clean code and loves performance/cost challenges
Salary:
$110,000 – $165,000 USD base + meaningful equity (portfolio startup) + full benefits + Sirex carry
Description:
Sirex.vc doesn’t just invest — we plug strong builders straight into our portfolio companies.
This is your chance to work on the real infrastructure behind autonomous agents and the open digital economy. Full support from the Sirex team, fast growth, zero bureaucracy.
High risk. Zero apologies.
Senior Decentralized Infrastructure Engineer
Build and scale production-grade decentralized infrastructure: compute networks, protocols, storage layers, orchestration for AI workloads, and open-source primitives that power the next generation of agent systems.Skills &
Requirements:
4+ years in blockchain infra, distributed systems or high-scale compute
Deep experience with Rust / Go / C++ and protocols (libp2p, IPFS, custom consensus, GPU orchestration)
Bonus: self-hosted AI compute, decentralized training or edge inference
Ship fast, own uptime, love extreme performance and cost efficiency
Salary:
$175,000 – $255,000 USD base + big equity (portfolio startup) + full benefits + Sirex carry
Description:
Sirex.vc doesn’t just invest — we plug elite builders straight into our fastest portfolio companies.
This is your chance to build the actual rails for autonomous agents and open digital economy at scale. Zero bureaucracy, maximum leverage.
High risk. Zero apologies.
Web3 Fullstack Developer
Neonflick is a tech organization specializing in Web3 development.
We believe Web3 solutions are not as popular as they could be — mainly due to complexity. Our mission is to simplify the user experience and make decentralized technology more accessible and easy to use for everyone.
🚀 About the Role
We are looking for a Web3 Fullstack Developer who is passionate about decentralized technologies and excited to contribute to building meaningful Web3 products. You will work on developing new products, improving existing ones, and fixing bugs, all while proposing innovative ideas to enhance our platform.
🔹 Responsibilities
Develop functional and user-friendly Web3 products
Improve and optimize existing products and features
Identify and fix bugs or issues in the system
Propose and implement new ideas for product development
Collaborate with the team to ensure high-quality software delivery
🔹 Requirements
Strong interest in Web3 / blockchain / decentralized technologies
Fullstack development experience (frontend + backend)
Experience with smart contracts and decentralized frameworks is a plus
Problem-solving skills and attention to detail
Ability to work independently and proactively
🔹 What You Get
Early-stage involvement in a Web3 tech organization
Influence over product development and feature design
Opportunity to build experience and a portfolio in the Web3 space
Potential long-term collaboration and future compensation as the project grows
A chance to contribute to making Web3 simpler and more accessible
⚠️ Important
This is an unpaid position. We are looking for someone motivated by vision, learning, and long-term impact rather than immediate salary.
If you are passionate about Web3 and building meaningful decentralized products, we’d love to hear from you.
Junior AI Engineer
Join one of our fast-growing portfolio startups and help build simple AI features. You’ll work with large language models, create basic automations and chat tools, test ideas, fix small bugs, and integrate AI into everyday products.
Skills & Requirements:
0–2 years of experience (fresh graduates or self-taught welcome)
Basic Python knowledge
Interest in AI, LLMs or chatbots (personal projects are a big plus)
Quick learner who enjoys trying new things
Good English for team communication
Salary: $95,000 – $135,000 USD base + equity in the startup + full benefits
Description:
Sirex.vc not only invests — we actively help our portfolio companies hire great people. This Junior AI Engineer role is inside one of our AI-native startups. You’ll get real hands-on experience, learn from the best, and build things users actually use — all with full support from the Sirex team.
High risk. Zero apologies.