DeFi Trading Engineer

London, UK
Full time
Office
Compensation is not specified
Role
Software Engineer
Description

Location: London or Zug

About us:

Founded in 2013, GSR is a leading market-making and programmatic trading company specializing in cryptocurrency trading. With global operations and an expert team, we offer liquidity solutions to various cryptocurrency ecosystems. We strive to provide exceptional service and tailored trading capabilities to our clients, building lasting relationships across both traditional and crypto markets.

Our team consists of seasoned professionals from renowned financial institutions, dedicated to developing cutting-edge trading platforms that cater to the unique demands of digital asset markets. Joining GSR means being a vital part of the dynamic cryptocurrency landscape.

About the role:

As part of the DeFi team, you will contribute to algorithmic trading activities across different blockchains. We are looking for a skilled DeFi Trading Engineer to enhance our trading strategies and develop new functionalities. The ideal candidate should possess a deep understanding of DeFi, blockchains, and prior experience in automated trading. You will collaborate with Quant Trading Team members and Engineers throughout the project lifecycle, from conception to implementation. This role involves both on-chain and off-chain coding to build secure, high-performing systems that operate reliably 24/7. Knowledge of DEXs, protocol mechanics, blockchain fundamentals, and smart contract security is advantageous.

Your responsibilities will include:

  • Designing and implementing scalable software for on-chain systematic trading.
  • Enhancing off-chain applications using languages like Rust to support pricing, order management, risk analysis, and monitoring.
  • Developing smart contracts to facilitate efficient and secure on-chain execution.
  • Collaborating effectively within a global team, emphasizing transparent communication and timely delivery.
  • Staying updated on DeFi developments to identify opportunities and shape long-term strategies.

Your Qualifications/Attributes will include:

  • Degree in Computer Science, Engineering, or relevant field.
  • 2+ years of coding experience in a compiled language.
  • Proficiency in web3 programming languages such as TypeScript, Python, or Rust.
  • Strong problem-solving abilities and the capacity to work independently and collaboratively.
  • Excellent communication skills to communicate technical concepts clearly and effectively.
  • Detail-oriented mindset, with a focus on code quality, maintainability, and documentation.

Nice to have:

  • Experience with non-EVM blockchains such as Solana, Cosmos, Aptos, or Sui.
  • Knowledge of Docker and Kubernetes for containerization and orchestration.
  • Proficiency in cloud computing and distributed systems.

What we offer:

  • Transparent and collaborative work culture founded on Integrity, Innovation, and Performance.
  • Competitive Salary with discretionary bonus payments.
  • Benefits including Healthcare, Dental, Vision, Retirement Planning, holiday entitlement, and catered lunches (office-dependent).
  • Regular team events and social activities.
  • Corporate Social Responsibility program, charity fundraising initiatives, and volunteer opportunities.

GSR is an Equal Employment Opportunity employer, promoting a meritocratic approach in all aspects of recruitment and performance evaluation.

Skills Required
Avatar
Gsrmarkets
Website
www.gsr.io
Company size
Not specified
Location
United States
Description
Not specified

More Full-time Jobs

Show more

We are looking for a partner who will bring users to our website

Full time
Remote
Hello everyone,
We have a website where we organize paid raffles/giveaways. We are looking for teammates who have marketing knowledge or an audience/communit and can attract people to join these raffles.
Once the required number of participants is reached, the raffle will be drawn, and after the prizes are distributed, you will receive 15% of the remaining profit from the website. I would also like to point out that your earnings are determined as soon as a raffle is created.
Requirements:
-Someone who already has an audience/community and can encourage them to participate in paid raffles,
-Someone who owns a YouTube channel, Telegram channel, or groups on other platforms and can promote/share the raffles. Or instead of the points above, someone with strong marketing skills
-Who can attract users to the website using their own methods.
Additional notes:
Payments will be made to you via Laborx once the total participant count is completed. Raffles can be for 1,000 people or even 1 million people. The more participants you bring, the better.
More games and features will also be added to the website to keep users active on the platform. If you would like to join us on this highly profitable journey, please don't hesitate to get in touch. 
Note; The website is already live and fully operational. We are about to launch our very first raffle.
Payment in Crypto
15
Monthly
See details

Looking for a Full Stack and Blockchain Developer

Full time
Remote
Worklo is building the future of professional services automation — combining our core PSA platform with a blockchain-powered salary distribution system that automates compensation directly from project data, time entries, role assignments, and milestones. This role is for a highly capable engineer who can own both traditional full-stack SaaS development and blockchain infrastructure, designing and scaling an end-to-end system that bridges Worklo’s platform with secure on-chain payroll execution.You’ll be one of the core engineers shaping both Worklo PSA and our blockchain payroll architecture. This is a greenfield, high-ownership opportunity where you’ll make major architectural decisions across smart contracts, backend systems, frontend applications, database security, and blockchain integrations.ResponsibilitiesFull Stack Platform DevelopmentOwn full product features end-to-end: database schema design, backend API development, frontend UI implementation, deployment, and monitoringBuild and maintain scalable applications using Next.js 15 (App Router, React Server Components), TypeScript, Express.js REST APIs, and SupabaseDesign and implement PostgreSQL schemas, optimize queries, and maintain database performanceWrite and maintain Supabase Row Level Security (RLS) policies for secure multi-tenant data isolationBuild polished, reusable UI components using React, shadcn/ui, and Tailwind CSS 4Develop secure REST APIs with proper validation (Zod), authentication, and error handlingIntegrate third-party services including SMTP, file storage, analytics dashboards, and workflow toolsDebug production issues, improve observability, and contribute to architecture decisionsBlockchain System DevelopmentDesign and implement Solidity smart contracts for salary calculation and automated payroll distributionBuild compensation logic covering:Hours workedRole multipliersMilestone bonusesStablecoin payouts (USDC/USDT)Deploy and manage smart contracts on Polygon L2 or similar EVM-compatible networksDevelop backend blockchain integrations that sync Worklo’s Supabase data with on-chain payroll systemsBuild wallet registry systems enabling MetaMask and WalletConnect integrationImplement blockchain event listeners, webhooks, and indexing systems to synchronize off-chain and on-chain statesCreate secure transaction signing, key management, and server-side blockchain interaction layersBuild in-app dashboards for payroll visibility, wallet management, and transaction historyWrite and maintain comprehensive test suites for smart contracts using Hardhat, Foundry, or similar frameworksOptimize contracts for gas efficiency, security, and upgradeabilityRequirements3+ years of professional experience in full-stack software development3+ years of blockchain development with production-deployed smart contractsStrong TypeScript/Node.js expertise across frontend and backend systemsStrong Solidity skills, including:Reentrancy protectionAccess controlUpgradeability patternsGas optimizationDeep experience with React and modern frontend architectureSolid understanding of PostgreSQL, database design, indexing, and optimizationExperience with Supabase, Firebase, or similar backend platformsExperience designing secure REST APIs and authentication systemsFamiliarity with ethers.js, viem, or similar blockchain interaction librariesExperience with Polygon or other EVM-compatible L2 ecosystemsStrong understanding of ERC-20 standards, stablecoin mechanics, and wallet integrationsAbility to work independently in a remote-first, async environmentComfortable making technical decisions with real product ownershipNice to HaveExperience with Next.js App Router and React Server ComponentsHardhat, Foundry, Truffle, or OpenZeppelin expertiseDeFi protocol or on-chain financial system experienceFamiliarity with The Graph or blockchain indexing infrastructureMulti-sig wallet and treasury management experienceExperience building multi-tenant SaaS productsFamiliarity with advanced frontend libraries such as:@xyflow/react@dnd-kitJotaiSWROpen source contributions or demonstrable side projectsWhy Join Worklo?Greenfield opportunity with major technical ownershipBuild cutting-edge infrastructure combining SaaS + blockchainInfluence architecture from database to smart contractsWork on products used by real agencies and consultanciesRemote-first, async team with strong engineering autonomyImmediate product impact with room to shape long-term systemsIf you’re excited about building scalable SaaS platforms while architecting real-world blockchain payroll systems, this is a rare chance to work at the intersection of enterprise software and decentralized finance.
Payment in Crypto
7,083-8,333
Monthly
See details

Senior Full-Stack engineer for DEX platform development

Full time
Remote
This platform is a Decentralized Trading & Exchange platform designed to provide a transparent, trustless, and fully on-chain trading platform.With the core being an on-chain orderbook matching engine, Platform helps traders to have full control over their orders while reducing transaction costs and remains the same trading experience in a Centralized Exchange.V1 is built for EVM blockchains and is completely permissionless. Partners can work with Position Exchange’s on-chain central orderbook to share liquidity and power unique features for a better user experience.V2 will support follow things:- SwapIn the Swap of DEX Interface, the EVM tokens (ERC-20, BEP-20) are supported.- BridgeDEX Bridge is software protocols that **facilitate the movement of assets and data between different blockchain networks**, enabling interoperability within the decentralized finance ecosystem. EVM tokens (Ethereum, BSC, Polygon, Arbitrum, Optimism), Internet Computer and Bitcoin are available.So we are currently seeking talented Senior Software engineers to expand our development team.
Payment in Crypto
8,000-12,000
Monthly
See details

Earn $300-$1000/week - 50% Comission (crypto offers)

Part time
Hybrid
I am looking for serious closer/affiliate to sell a proven digital product 
Offers :
 product price :$97 
Your cut : 50% ( $48 per sale ) 
Paid same day in USDT after proof of sale 
Why this converts: Beginner friendly "make money" angle
Clear outcom: generate 150+ USDT in 24h
no subcription/no API cost
Ready- to use- landing page
Your role: 
Promote your link 
Close deals ( Dms,network,clients)
Product : lead generation tool ( Google maps ) packaged as a "cash systeme" already tested strong-demand 
Number close 
5 sales/day = $240 day no cap
Looking for motivated sellers only .
Send "Ready" to get started
Payment in Crypto
83.33-83.33
Monthly
See details

Business Development Lead — Web3 / DeFi (KOL & BDM Growth)

Full time
Remote
Business Development Lead — Web3 / DeFi (KOL & BDM Growth)
Remote | FBYT
We are building FBYT, a decentralized money management platform designed to redefine how capital is managed and deployed in Web3.
We are looking for a Business Development Lead to scale our growth engine by recruiting and managing a global network of Business Development Managers.
Role Overview
This is a strategic growth role focused on building and scaling a BD team.
You will be responsible for:
Sourcing and onboarding high-quality BDMs
Building a scalable partner acquisition engine
Ensuring BDMs are productive and aligned
Driving consistent KOL / Money Manager acquisition through your team
What You’ll Be Doing
Recruit and onboard BDMs globally
Train and guide BDMs on:
KOL acquisition
attracting and onboarding retail and institutional crypto managers
onboarding process
performance expectations
Monitor performance and optimize output
Build systems, playbooks, and processes for scaling BD
Act as a key driver of user and revenue growth
Compensation Structure
This role offers a competitive fixed salary + performance-based upside
Why This Role is Unique
Build and lead a global BD network
High ownership and strategic impact
Combination of:
leadership
recruiting
growth strategy
Strong upside tied to team performance
What We’re Looking For
Experience in:
Web3 / crypto / DeFi
Business Development or affiliate growth
Proven ability to:
recruit
build teams
scale partnerships
Strong network in:
KOL / trading / crypto communities
Highly organized and performance-driven
Ideal Candidate
Thinks in systems, not just individual deals
Knows how to scale people + processes
Motivated by building and leading a team
Join Us
If you want to build and scale a global BD operation in Web3 and be rewarded for real impact — we’d love to hear from you.
Telegram: @DT_7717
X: https://x.com/FBYTio