Senior Trading Systems Support Engineer

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

About us:

B2C2 is a forward-thinking digital asset firm that focuses on creating the future ecosystem. The company enables institutional access to cryptocurrency by offering reliable liquidity regardless of market conditions. With a strong foundation in crypto-native technology and a commitment to continuous innovation, B2C2 is a trusted partner for institutions worldwide. Established in 2015 and acquired by SBI Group in 2020, B2C2 operates as an independent entity with headquarters in the UK and offices in the US and Japan. B2C2 OTC Ltd. is regulated by the UK's Financial Conduct Authority (FRN 810834).

We take pride in our inclusive company culture and our ability to attract top talent that fits our values. If you are seeking a challenging role within an innovative industry at a dynamic company, please continue reading.

Scope of the Role:

This position presents an exciting opportunity for successful candidates to join the Tech Support team.

Opportunity:

  • Experience rapid professional growth in a supportive environment that encourages you to perform at your best consistently.
  • Collaborate with cutting-edge technologies and products to enhance productivity.
  • Work with a highly skilled global team under the guidance of the Head of Support, enhancing your skills within a lively office setting in London.
  • Access to training and development opportunities.

Role and Responsibilities:

  • Ensure optimal uptime for production trading systems through real-time monitoring.
  • Provide expert-level 2 and 3 support for complex technical issues on various platforms and products, ensuring timely resolution and client satisfaction.
  • Develop specialization in trading environment knowledge and effectively coordinate with cross-functional teams to address system issues.
  • Continuously monitor application alerts to maintain optimal system performance.
  • Create and maintain precise internal documentation for troubleshooting processes, common issues, and their solutions.
  • Offer guidance and training to junior support engineers with regular handover calls to teams across multiple offices.
  • Lead incident response efforts, including investigation, documentation, and communication.
  • Execute weekly support duties checklists.

Qualifications, Skills, and Experience:

  • Minimum of 5 years of hands-on experience in a technical application support role within a trading firm, preferably in cryptocurrency, FX, or equities.
  • Demonstrated initiative and ability to take ownership of problems until resolution, with good problem-solving skills.
  • Exceptional communication and interpersonal skills.
  • Understanding of financial products, trading system architecture, and risk/compliance principles.
  • Proficiency in reading code and developing scripts for automation and analysis.
  • Willingness to contribute to setting up a long-term support model within the team.
  • Availability for phone or remote support outside of regular office hours when needed.
  • Openness to working shift hours, if required.
  • Interest in monitoring, alerting, and reporting initiatives.
  • Enthusiastic about assisting individuals with varying technical aptitude.
  • Experience with Apple MacBooks and Linux technologies.

Additional Notes:

This overview does not encompass all responsibilities associated with the role, as tasks may evolve with changing company needs and goals.

At B2C2, we prioritize fostering a strong culture rooted in our core values:

  • Ambitious – Striving for significant accomplishments through exceptional performance.
  • Innovative – Looking ahead for progressive solutions that benefit both clients and employees.
  • Meritocratic – Recognizing and rewarding positive contributions across the organization.
  • Collegiate – Achieving success through collaborative teamwork in a supportive environment.
  • Risk-aware – Making informed decisions and implementing thoughtful practices.

Equal Employment Opportunities Policy:

B2C2 is dedicated to promoting equal employment opportunities for all applicants and employees, regardless of background. We do not discriminate based on factors such as race, color, religion, gender, national origin, age, disability, genetic information, marital status, or any other protected characteristic. Our recruitment, hiring, training, promotion, and compensation practices are applied without bias in compliance with federal, state, and local regulations. We are committed to creating an inclusive workplace that attracts, engages, promotes, and retains top talent, and we are open to considering flexible work arrangements for all roles.

Skills Required
Avatar
B2C2
Company size
Not specified
Location
United States
Description
Not specified
Status

More Full-time Jobs

Show more

Looking for a Sales Partner / Co-founder (Tech Venture - Launch Phase)

Asia, USA +2
Asia, USA +2
Part time
Remote
We are officially launching! We have a solid technical team already in place, specialized in website and mobile app development, with an upcoming focus on Web3 solutions.
​What makes Oferli unique is our core payment infrastructure: we operate on a 100% crypto payment system, providing a modern, borderless transaction experience for our clients.
​We are opening our doors to a serious, driven Sales Partner who wants to build this foundation right alongside us from day one.
​The Perks:
​15% commission on every closed project, paid automatically in crypto upon client payment.
​Be part of a pioneering tech venture introducing seamless 100% crypto payments to the market.
​Total flexibility and co-founder status to scale the business together.
​The Goal: Prospect, negotiate, and close deals for digital development services (local & international clients).
​If you are a results-driven sales expert who wants to build a real venture with us, shoot me a DM.
Payment in Crypto

Founding Technical Partners for Oferli – Elite Web & Mobile Development Team🌐

Remote, USA
Remote, USA
Part time
Remote
I am Sadr, CEO of Oferli. We are building a high-performance, elite technical team, and I am looking for 5 to 10 dedicated founding technical partners to join me in this mission.
​The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
​What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
​Requirements:
​Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
​Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
​Professionalism: We operate with high standards. Communication and efficiency are key.
​How We Work:
​Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
​Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
​Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
​Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
​Let’s build the future, together.
​Sadr B
CEO, Oferli
Payment in Crypto

Senior Blockchain Engineer - Low-Latency Execution Infrastructure (HyperEVM / Hyperliquid)

Full time
Remote
 
 
we’re looking for a senior blockchain engineer to build low-latency execution infrastructure around hyperevm and hyperliquid-related trading systems.
 
this is not a frontend or dapp role. the focus is on real-time execution systems, chain-native infrastructure, and market-aware backend engineering where latency, ordering, and state correctness directly impact execution outcomes.
 
you will work on systems that operate under noisy, adversarial, and highly dynamic conditions, including delayed or missing websocket events, rpc inconsistencies, transaction lifecycle complexity, state desynchronization, retries, and recovery logic.
 
core responsibilities include building and maintaining realtime blockchain data pipelines, websocket and rpc streaming systems, execution orchestration layers, liquidity-aware routing logic, transaction lifecycle management, and integration with orderbook and market data systems.
 
we are specifically looking for engineers who think in systems rather than features. meaning understanding how data flows through pipelines, how state evolves over time, how failures propagate, and how to design systems that recover automatically without manual intervention.
 
areas of work include:
 
- realtime blockchain data ingestion
- mempool-aware execution flows
- transaction lifecycle handling
- execution sequencing and routing
- websocket and rpc infrastructure
- state synchronization systems
- liquidity and orderbook integration
- performance and latency optimization
 
you should be comfortable working with distributed systems, asynchronous event processing, and latency-sensitive backend architectures.
 
strong experience in one or more of the following areas is highly relevant:
 
- exchange infrastructure
- trading systems
- execution engines
- blockchain indexers
- realtime event systems
- arbitrage systems
- rpc/node infrastructure
- defi backend systems
- low-latency backend engineering
 
preferred technical stack:
 
- typescript / node.js
- go
- rust
- python
- postgres
- clickhouse
- redis
- kafka or similar messaging systems
- docker
- linux environments
- evm rpc internals
- websocket infrastructure
 
ecosystem familiarity:
 
- ethereum, arbitrum, base, optimism, bsc
- hyperliquid / hyperevm
- foundry
- ethers.js / viem
- geth / erigon / nethermind
- dex and amm mechanics
- liquidity math, slippage, gas strategy, routing logic
 
this role is not suitable for:
 
- frontend-only developers
- nft or basic dapp experience only
- tutorial-level web3 developers
- candidates without production systems experience
 
we value engineers who have built real systems where correctness, latency, and reliability matter under load. we care less about buzzwords and more about concrete systems you have personally built and operated.
 
ideal candidates can clearly explain:
 
- system architecture decisions
- bottlenecks and tradeoffs
- failure modes and recovery strategies
- latency considerations in real systems
- production debugging experience
 
working style:
 
- remote
- async-first
- low bureaucracy
- high ownership
- engineering-driven team
- direct technical communication
 
we strongly prefer practical engineering depth over polished presentation. if you have built or worked on systems involving realtime data, trading infrastructure, blockchain execution, or latency-sensitive backend systems, please include details of those systems when applying.
 
Payment in Crypto
6,000-13,500
Monthly
See details

Blockchain Engineer ‑ Copy-Trade Protocol at Zignaly

Singapore
Singapore
Full time
Remote
Mission:Emit immutable trade clones at the speed of mempools. Engineer on-chain vault + relay contracts that ingest master signals, laser-bridge them across EVM chains, and absorb slippage, MEV, and NFL Sunday-level volatility without exposing followers to liquidation contagion.
Stack & Level Requirements
Solidity 0.8.25+ via Foundry toolchain (Forge, Anvil, Cast) or Rust/Anchor on Solana
Proficiency: Huff / Yul inlines for gas micro-optimisations, EIP-712 signing, EIP-1167 minimal proxies
Cross-layer bridges: LayerZero, Wormhole, CCIP + custom relayers for <2 s finality
MEV-Geth style searchers – understand sandwich mechanics to architect commit-reveal patterned entry pools
Price oracles: Chainlink CCIP-read, Pyth, custom tick-level fallback for sub-$0.05 deviation error in volatility freak events
Security toolkit: Slither, Mythril, Echidna fuzz 1e6 vars/run, invariant bracelets as code
Gas profiling: forge-std Vm for on-chain gas snapshots pre-per-release hook
Hard-Check Trader DNA
⚔️ You have personally executed >$10 k notional on perpetuals & on-chain or cross-margined DeFi strategies with stress traces or Etherscan proof of addr.
⚔️ You’ve felt (or caused) impermanent loss >10 % in a single block.
⚔️ Optional but revered: vault or strategy on DeFiLlama/Apeboard with >$50 k TVL linked to your keys.
Responsibilities
Build gas-constrained e2e testnets atop Anvil mainnet fork for every release candidate.
Continuous white-hat review loop – both formal (Certora specs) & red-team bounty (Immunefi).
Coordinate with backend for off-chain signatures (EIP-712 typedData balancers).
Draft governance & upgrade timelocks (OpenZeppelin UUPS).
Be on-call for on-chain incidents (failed Oracle, stuck bridge, keeper tottering). with protocol parameters YAML files.
Soft Enemies – Don’t apply 
ifYou only deployed ERC-20 tokens and never** felt liquidation missiles.
You ignore MEV game theory.
Perks / Weapons Cache
Hardware fund: Apple M Max + 64 GB RAM, 10 Gbps fibre hookup.
Personal copy-trading gas allowance 1 k USD monthly – trade openly on testnet, share P&L in public.
Health stipend for red-eye debugging—includes premium dark-coffee & builder-milk.
Additional 1 % of inflation-scheduled supply upon achieving $100 m copy-AUM on ETH L2.
Apply Now
Attach:
Your latest CV. 
Etherscan link to your most brutal trading bot / vault (& TVL proof). 
GitHub repo (>20 stars) or archived PR of previous audited live contract address. 
Recorded deep-dive Loom of <180 s showing circuit breaker you built.
Cut-over: Applications stack-ranked & closed within 7 calendar days or when 3 offers signed—whichever happens first. Ready to ship settlement layer blood sport? 💥☠
Payment in Crypto
12,500-18,333
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