Staff Software Engineer, Decentralised Exchange
Singapore
Full time
Office
Compensation is not specified
Role
Backend Engineer
Description
About the Company
Here at OKX, we believe that technology will shape the future. Established in 2017, we are transforming global systems through our cutting-edge digital asset exchange, Web3 portal, and blockchain ecosystems. Our mission is to reshape the financial ecosystem by offering diverse and sophisticated products, solutions, and trading tools. With the trust of over 50 million users in 180 countries worldwide, OKX empowers individuals to explore the world of Web3. We have a wide range of products and services, and we are committed to innovation, envisioning a world of financial access supported by blockchain and decentralized finance.
We are an innovative company that values social responsibility. We actively participate in and encourage employees to take part in various public welfare activities. With over 3,000 employees globally, we believe that embracing diversity and inclusion will contribute to long-term value creation for the industry. Join us in building the future!
About the DEX (Decentralised Exchange) Team
The DEX service team operates a comprehensive multi-chain and cross-chain aggregation trading platform. Our intelligent routing splitting algorithm X Routing automatically calculates the optimal transaction path and volume split, enabling users to enjoy optimal transaction prices with lower slippage and network fees in multi-chain and cross-chain scenarios. Currently, our DEX supports transactions on 10+ chains, aggregates 100+ mainstream DEXs, offers 100,000+ currencies, and supports mainstream cross-chain bridges such as cBridge, MultiChain, and SWFT. We aim to provide a DEX where users can trade any asset on any chain.
What You'll Be Responsible For
- Formulating, selecting, and developing technical schemes for platform projects
- Organizing and coordinating resources, leading project research and development, troubleshoot problems, and ensure quality and timely completion
- Facilitating cross-team communication and promoting teamwork efficiency through code quality control and collaboration
- Undertaking team tasks and cultivating technical talents in the industry
Qualifications We're Looking For
- Solid foundation in Java, including deep understanding of JVM configuration optimization strategies and tuning, IO, multi-threading, concurrency frameworks, common data structures, algorithms, and design patterns
- Good programming specifications and rich work experience
- Familiarity with mainstream open source application frameworks, such as SpringBoot, SpringMVC, Mybatis, SpringCloud, etc.
- Experience with MySQL, Oracle, and other databases, including in-depth understanding of things, locks, indexes, database and SQL optimization, design methods such as sub-database sub-table, leader/follower synchronization
- Familiarity with common middleware, such as MQ, RPC, cache, message queue, etc.
- Deep understanding of the design principles of common caching systems, such as Memcached, Redis, etc., and ability to accurately choose caching solutions
- Proficiency in distributed system principles, including CAP, consistency, idempotence operation, etc.
- Clear logic, quick thinking, and good communication skills
- Bilingual preferred (Mandarin and English) as the team will be working with stakeholders in different regions
Perks & Benefits
- Competitive total compensation package
- Learning and development programs, including education subsidies for employee growth and development
- Various team building programs and company events
- Wellness and meal allowances
- Comprehensive healthcare schemes for employees and dependents
- More perks to be discussed during the hiring process!
Skills Required
OKX
Website
www.okx.comCompany size
Not specified
Location
United States
Description
Not specified
B S
Junior Crypto Spot & Perpetual Market-Making Trader
Ho Chi Minh, Vietnam
Ho Chi Minh, Vietnam
Full time
Remote
We are hiring Junior Market-Making Traders to operate and manage high-frequency liquidity strategies across spot and perpetual crypto markets. This is a prop-style trading seat: fast, technical, highly automated, and performance-driven.You will be trained directly by senior HFT and volatility traders, learning how to run Deltix-based strategies, manage risk in real time, and operate under true prop-desk conditions.
No prior experience is required — we will train the right candidates from the ground up.If you have 1–2 years of experience, great — but this role is not for senior traders.
We want sharp, disciplined operators who want to grow into high-performance liquidity traders.
You will play a key role in maintaining 24/7 liquidity across global markets, working closely with our quant and infra teams to ensure our systems stay ahead of the market.
Key Responsibilities
Market Making & Strategy OperationRun and monitor HFT market-making systems across spot and perpetual markets.
Maintain competitive spreads and reliable liquidity at all times.
Adjust quoting behavior based on volatility and order-flow patterns.
Assist with hedging and inventory management across correlated instruments.
Deltix Trading SystemsOperate strategies in Deltix QuantServer, TimeBase, and StrategyRunner.
Identify issues quickly — stale quotes, latency spikes, disconnections, or risk throttles.
Work with senior traders and engineering to improve strategy logic and routing.
Real-Time Risk Management
Monitor exposure, leverage, and PnL across multiple venues.React quickly to regime shifts, volatility events, and fast markets.Ensure strategies stay within defined limits while maximizing performance.
Market Awareness & Execution SupportTrack liquidity, trends, microstructure shifts, and arbitrage signals.
Flag inefficiencies and opportunities in market behavior.Support coverage during market events, rapid volatility, and system upgrades.
Desk Coverage & Rotation
Participate in a 6-day rotation, including weekends.
Provide clean handovers between regions to ensure 24/7 liquidity.
What We’re Looking For
No experience required — we will train you intensively.
If experienced, max 1–2 years in trading, operations, quant, engineering, or similar.
Strong numerical, analytical, or technical aptitude.
High attention to detail and situational awareness — able to monitor multiple streams of data.
Ability to stay calm and decisive under pressure.
Hunger to learn, improve, and compete in a performance-driven environment.
Willingness to work weekends and operate in a disciplined 6-day schedule.
Nice to Have (Not Required)
Exposure to crypto markets, order books, or exchange mechanics.
Familiarity with Python, C#, C++, or trading systems.
Experience with Deltix, OMS/EMS tools, or market-making environments.
Compensation
We offer true prop-firm style compensation, designed to reward discipline, precision, and growth
Competitive base salary
Aggressive PnL-based bonus with high upside
Opportunity to scale into more markets and larger risk limits as performance grows
Long-term incentives for top performers
This is a seat where sharp, disciplined talent can grow into high-earning, high-responsibility traders.
No prior experience is required — we will train the right candidates from the ground up.If you have 1–2 years of experience, great — but this role is not for senior traders.
We want sharp, disciplined operators who want to grow into high-performance liquidity traders.
You will play a key role in maintaining 24/7 liquidity across global markets, working closely with our quant and infra teams to ensure our systems stay ahead of the market.
Key Responsibilities
Market Making & Strategy OperationRun and monitor HFT market-making systems across spot and perpetual markets.
Maintain competitive spreads and reliable liquidity at all times.
Adjust quoting behavior based on volatility and order-flow patterns.
Assist with hedging and inventory management across correlated instruments.
Deltix Trading SystemsOperate strategies in Deltix QuantServer, TimeBase, and StrategyRunner.
Identify issues quickly — stale quotes, latency spikes, disconnections, or risk throttles.
Work with senior traders and engineering to improve strategy logic and routing.
Real-Time Risk Management
Monitor exposure, leverage, and PnL across multiple venues.React quickly to regime shifts, volatility events, and fast markets.Ensure strategies stay within defined limits while maximizing performance.
Market Awareness & Execution SupportTrack liquidity, trends, microstructure shifts, and arbitrage signals.
Flag inefficiencies and opportunities in market behavior.Support coverage during market events, rapid volatility, and system upgrades.
Desk Coverage & Rotation
Participate in a 6-day rotation, including weekends.
Provide clean handovers between regions to ensure 24/7 liquidity.
What We’re Looking For
No experience required — we will train you intensively.
If experienced, max 1–2 years in trading, operations, quant, engineering, or similar.
Strong numerical, analytical, or technical aptitude.
High attention to detail and situational awareness — able to monitor multiple streams of data.
Ability to stay calm and decisive under pressure.
Hunger to learn, improve, and compete in a performance-driven environment.
Willingness to work weekends and operate in a disciplined 6-day schedule.
Nice to Have (Not Required)
Exposure to crypto markets, order books, or exchange mechanics.
Familiarity with Python, C#, C++, or trading systems.
Experience with Deltix, OMS/EMS tools, or market-making environments.
Compensation
We offer true prop-firm style compensation, designed to reward discipline, precision, and growth
Competitive base salary
Aggressive PnL-based bonus with high upside
Opportunity to scale into more markets and larger risk limits as performance grows
Long-term incentives for top performers
This is a seat where sharp, disciplined talent can grow into high-earning, high-responsibility traders.
Payment in Crypto
White Bridge LTD
Junior Crypto Analyst & Trader (Remote, Training Included)
Bruges, Belgium +9
Bruges, Belgium +9
Part time
Remote
WhiteBridge-Ltd is a young and rapidly developing company working in the field of digital markets and analytics.
We bring together enterprising people who want to master modern approaches to trading, analysis and decision-making in a dynamic market environment.
We are currently looking for a Junior Crypto Analyst & Trader, a novice specialist who is ready to complete training, perform real trading operations and develop under the guidance of experienced mentors.
Your Responsibilities:
Execution and support of trading operations on digital markets.
Tracking asset dynamics and market trends.
Maintaining internal records on transactions and statistics.
Analyzing market data, news, and charts for decision-making.
Work with analytical tools and participate in discussions with a team of traders.
The gradual formation and improvement of your own trading strategy.
What We Offer:
Working for a young and growing international company.
Remote format — you can work from anywhere in the world.
Flexible schedule — up to 20 hours per week, it is convenient to combine with study or main activity.
Learning from scratch — all processes and trading tools are mastered with a mentor.
The opportunity for professional growth and transition to more advanced levels.
Ideal Candidate:
He is interested in digital assets and trading processes.
He is attentive to details and is able to analyze data.
He learns quickly and is ready to act in a dynamic environment.
Knows how to work independently and in a team.
Trading experience is not required — the desire to develop is important.
We bring together enterprising people who want to master modern approaches to trading, analysis and decision-making in a dynamic market environment.
We are currently looking for a Junior Crypto Analyst & Trader, a novice specialist who is ready to complete training, perform real trading operations and develop under the guidance of experienced mentors.
Your Responsibilities:
Execution and support of trading operations on digital markets.
Tracking asset dynamics and market trends.
Maintaining internal records on transactions and statistics.
Analyzing market data, news, and charts for decision-making.
Work with analytical tools and participate in discussions with a team of traders.
The gradual formation and improvement of your own trading strategy.
What We Offer:
Working for a young and growing international company.
Remote format — you can work from anywhere in the world.
Flexible schedule — up to 20 hours per week, it is convenient to combine with study or main activity.
Learning from scratch — all processes and trading tools are mastered with a mentor.
The opportunity for professional growth and transition to more advanced levels.
Ideal Candidate:
He is interested in digital assets and trading processes.
He is attentive to details and is able to analyze data.
He learns quickly and is ready to act in a dynamic environment.
Knows how to work independently and in a team.
Trading experience is not required — the desire to develop is important.
Payment in Crypto
Jiraporn Eksamut
Smart Contract Developer
Part time
Remote
About the Role:
We’re looking for an experienced Smart Contract Developer to join our remote team. You’ll be responsible for designing, developing, and deploying secure and efficient smart contracts for blockchain-based applications. The role involves close collaboration with other developers and product leads to bring new ideas to life.
Key Responsibilities:
- Design, write, and test smart contracts (Solidity)
- Review and optimize existing contracts for gas efficiency and security
- Integrate contracts with front-end or backend services via Web3
- Participate in code reviews, audits, and documentation
- Stay current with blockchain trends and best practices
Requirements:
- Proven experience with Solidity, EVM-based blockchains, and related frameworks (Hardhat, Truffle, Foundry, etc.)
- Good understanding of DeFi protocols, NFT standards (ERC-721/1155), or Layer-2 solutions
- Familiarity with smart contract security and testing methodologies
- Experience using GitLab, Git, and version control workflows
- Ability to work independently and communicate effectively in English
Nice to Have:
- Background in cryptography, auditing, or backend development
- Contributions to open-source blockchain projects
What We Offer:
- Fully remote and flexible working hours (team across EST, CET, GMT+2)
- Flexible payment options — including crypto payments (USDT, USDC) or traditional methods
- Collaborative and friendly international team
- Opportunities to grow into lead or architecture roles
We’re looking for an experienced Smart Contract Developer to join our remote team. You’ll be responsible for designing, developing, and deploying secure and efficient smart contracts for blockchain-based applications. The role involves close collaboration with other developers and product leads to bring new ideas to life.
Key Responsibilities:
- Design, write, and test smart contracts (Solidity)
- Review and optimize existing contracts for gas efficiency and security
- Integrate contracts with front-end or backend services via Web3
- Participate in code reviews, audits, and documentation
- Stay current with blockchain trends and best practices
Requirements:
- Proven experience with Solidity, EVM-based blockchains, and related frameworks (Hardhat, Truffle, Foundry, etc.)
- Good understanding of DeFi protocols, NFT standards (ERC-721/1155), or Layer-2 solutions
- Familiarity with smart contract security and testing methodologies
- Experience using GitLab, Git, and version control workflows
- Ability to work independently and communicate effectively in English
Nice to Have:
- Background in cryptography, auditing, or backend development
- Contributions to open-source blockchain projects
What We Offer:
- Fully remote and flexible working hours (team across EST, CET, GMT+2)
- Flexible payment options — including crypto payments (USDT, USDC) or traditional methods
- Collaborative and friendly international team
- Opportunities to grow into lead or architecture roles
Rebecca Hannold
Senior Software Developer
Remote, USA
Remote, USA
Full time
Remote
BitPay, Inc., founded in 2011, is the world’s leading blockchain (cryptocurrency) payments company. We serve top merchants across six continents, providing a seamless and secure cryptocurrency payments experience. BitPay builds powerful tools to accept, store, and spend cryptocurrency safely and efficiently.
We’re looking for a Senior Backend Software Developer to join our remote US-based team and help craft the next generation of innovative products. If you thrive on solving complex problems, building scalable systems, and staying ahead of technology trends, this role is for you.
What You’ll Do:
Develop scalable and maintainable backend systems using Node.js and MongoDB
Collaborate with cross-functional teams to build features for customers and internal tools
Ensure high code quality through unit, integration, and functional testing, code reviews, and thorough documentation
Address challenges in scalability, reliability, and logging during development
Mentor and guide other developers, fostering growth and knowledge-sharing
Stay up-to-date with emerging technologies to keep our team innovative and competitive
What We’re Looking For:
5+ years of professional backend development experience
Expert in Node.js and MongoDB
Proven experience delivering production-ready APIs
Strong desire for continuous learning and process improvement
Track record of delivering high-quality software in professional environments
Passion for your craft, drive for progress, and commitment to excellence
Portfolio showcasing your work (e.g., GitHub)
Blockchain or fintech development experience
Highly Preferred: blockchain or fintech development experience
Bachelor’s degree in Computer Science or equivalent experience with notable projects
What We Offer:
Collaborate with a team of intelligent, enthusiastic individuals.
Thrive in a rapidly expanding crypto company with global reach, where your contributions make a tangible impact.
Work remote with a generous vacation policy, including the opportunity to take a sabbatical and select your own holidays.
Access to continuous learning and development opportunities, supported by professional development reimbursement.
Competitive salary package with comprehensive benefits, including fully covered medical and dental plans. We also offer telemedicine, life insurance, disability insurance, vision coverage, 401k, travel assistance, and more.
Option to receive payment in cryptocurrency, along with a crypto match program.
Stock option awards available to all employees.
Home office allowance, reimbursement for internet/cell expenses, complimentary Amazon Prime and Spotify subscriptions.
BitPay is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.
If interested, please apply here: https://bitpay.applytojob.com/apply/jobs/details/4eZJqEucfX
We’re looking for a Senior Backend Software Developer to join our remote US-based team and help craft the next generation of innovative products. If you thrive on solving complex problems, building scalable systems, and staying ahead of technology trends, this role is for you.
What You’ll Do:
Develop scalable and maintainable backend systems using Node.js and MongoDB
Collaborate with cross-functional teams to build features for customers and internal tools
Ensure high code quality through unit, integration, and functional testing, code reviews, and thorough documentation
Address challenges in scalability, reliability, and logging during development
Mentor and guide other developers, fostering growth and knowledge-sharing
Stay up-to-date with emerging technologies to keep our team innovative and competitive
What We’re Looking For:
5+ years of professional backend development experience
Expert in Node.js and MongoDB
Proven experience delivering production-ready APIs
Strong desire for continuous learning and process improvement
Track record of delivering high-quality software in professional environments
Passion for your craft, drive for progress, and commitment to excellence
Portfolio showcasing your work (e.g., GitHub)
Blockchain or fintech development experience
Highly Preferred: blockchain or fintech development experience
Bachelor’s degree in Computer Science or equivalent experience with notable projects
What We Offer:
Collaborate with a team of intelligent, enthusiastic individuals.
Thrive in a rapidly expanding crypto company with global reach, where your contributions make a tangible impact.
Work remote with a generous vacation policy, including the opportunity to take a sabbatical and select your own holidays.
Access to continuous learning and development opportunities, supported by professional development reimbursement.
Competitive salary package with comprehensive benefits, including fully covered medical and dental plans. We also offer telemedicine, life insurance, disability insurance, vision coverage, 401k, travel assistance, and more.
Option to receive payment in cryptocurrency, along with a crypto match program.
Stock option awards available to all employees.
Home office allowance, reimbursement for internet/cell expenses, complimentary Amazon Prime and Spotify subscriptions.
BitPay is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.
If interested, please apply here: https://bitpay.applytojob.com/apply/jobs/details/4eZJqEucfX
Proficient Infolabs
Blockchain Expert
Indore, India
Indore, India
Full time
Remote
My project is about building a USDT-like token (ERC20/TRC20/BEP20) with: Peer to Peer transfers & Trade Escrow-based trading Real liquidity (not flashed) Liquidity optimization (max tokens with minimum backing) Please share: Your past DeFi/Blockchain projects How you handle liquidity optimization