Quality Assurance Engineer (Mid - Senior)
About us:
B2C2 is a digital asset pioneer focusing on building future-proof ecosystems. The firm enables institutional access to crypto through reliable liquidity services regardless of market conditions. Its success stems from utilizing crypto-native technology, continuous product innovation, and serving as a trusted partner for various institutions globally. Established in 2015, and acquired by SBI, a Japanese financial group in 2020, B2C2 operates independently. Headquartered in the UK, with additional offices in the US and Japan, B2C2 OTC Ltd. holds authorization and regulation by the UK’s Financial Conduct Authority (FRN 810834).
We take pride in our company culture and knack for attracting top talent aligned with our values. If you seek a role in a dynamic company within a burgeoning industry, continue reading.
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B2C2 stands out as a leading cryptocurrency trading firm, acting as a principal risk market maker to both exchanges and OTC clients. The mission is to enhance transparency and operational efficiencies within this evolving asset class.
By bridging traditional financial and cryptocurrency markets, B2C2 is the trusted liquidity provider for brokerages, exchanges, banks, and fund managers, with a globally dispersed team possessing extensive expertise in conventional financial and crypto markets.
Emphasizing company culture and the ability to bring in not only top-tier talent but the right individuals, we welcome those looking to be part of an exciting industry at a vibrant company.
Overview of Team:
The Quality Assurance team is dedicated to offering engineer-focused testing services with a skilled, small team covering all front and middle office systems and process testing utilizing automation for efficient testing and enhanced quality.
Collaborating across technology, trading, and various business units, we develop tools and processes essential for B2C2 to sustain innovation swiftly and create industry-leading systems for both clients and internal use.
Scope of Role:
As a quality assurance engineer, your duties will involve contributing to constructing strategic functional and non-functional test frameworks and tools while prioritizing release and project testing requirements.
Additionally, as part of multiple agile teams and the QA horizontal, close collaboration with developers and business stakeholders is essential. This role will work towards satisfying internal quality assurance objectives as well as meeting the visibility testing needs of both internal and external stakeholders such as the risk team and regulators.
Key Responsibilities:
- Maintain and review regression test packs
- Contribute to developing tooling and test frameworks for functional and non-functional testing
- Take ownership of testing and quality assurance for one or more project teams concurrently
- Deliver system and system integration testing for releases
- Support user acceptance testing (UAT) for high-risk projects
- Create automated tests to evaluate new and existing systems and developments
- Present testing reports to project stakeholders to facilitate testing sign-off and project conclusion
- Aid the support and development teams in diagnosing and investigating production issues and testing subsequent fixes
- Assist the head of QA in organizing and managing business-focused manual test cases and maintaining automated test cases
The list above does not include all responsibilities, and tasks can change based on evolving roles within the company and broader business objectives of B2C2.
Mandatory Skills:
- Designing test automation frameworks for intricate systems
- Java proficiency and developing Java-based test automation frameworks
- Establishing and utilizing tooling for non-functional testing
- Analyzing tests and creating test cases with a risk-focused approach
- Investigating complex issues across a system stack
Preferred Skills:
- Conducting test automation using Cucumber to define test cases, including UI automation
- Proficiency in Python and Rust, adaptable to learning and working with other languages
- Applying test analysis to high-frequency trading systems with focus on functionality and non-functionality
- Proficiency in KDB, Q, AWS, and Kubernetes
- Understanding of trading and middleware protocols and technologies, such as Redis, FIX protocol, REST APIs, and Websockets
- Keen interest in trading systems and cryptocurrency
At B2C2, a strong culture underpins our success. We are an ambitious, innovative, meritocratic, collegiate, and risk-aware organization, striving for excellence in all aspects.
Equal Employment Opportunities Policy:
B2C2 upholds a commitment to equal employment opportunities for applicants and employees across various backgrounds. Discrimination based on race, color, religion, gender, national origin, age, disability, genetic information, marital status, or any other protected category is strictly prohibited. The company fosters an inclusive environment to attract, engage, promote, and retain the best talent by offering flexible working arrangements for its employees.
Community Moderator
We are a boutique, Asia-based Web3 marketing agency working with early-stage and growth-stage crypto projects across DeFi, infrastructure, consumer apps, and gaming.
Our team has executed campaigns with leading L1/L2 ecosystems, DeFi protocols, and community-driven projects.
We focus on narrative design, community activation, cross-market growth, and delivering impactful results for clients in Asia and globally.
We are now expanding our BD and Community Ops teams.
The Role: Community Moderator (36k–90k)
We’re hiring a community moderator to support client communities across Telegram, Discord, and X.
This is a front-line, user-facing role requiring empathy, high engagement, and strong judgment.
Responsibilities
Moderate multiple client communities to ensure safety, clarity, and engagement.
Respond to user questions, coordinate AMA/announcement schedules, post updates.
Keep communities active during key moments: launches, airdrops, campaigns, content releases.
Identify community issues or risks early and escalate appropriately.
Summarize community sentiment and user feedback for internal strategy teams.
Maintain tone, credibility, and professionalism when interacting with users.
Requirements
Prior experience moderating Web3 communities or Web2 social groups.
Familiarity with crypto user behavior, culture, and community patterns.
Excellent written communication and quick response ability.
High reliability; able to cover activity across Asian time zones.
Familiarity with the Southeast Asia KOL landscape, with strong existing relationships preferred.
Bonus
Ability to create short-form content or memes.
Multilingual (EN + CN preferred).
Experience with community analytics tools.
Business Development Manager
We are a boutique, Asia-based Web3 marketing agency working with early-stage and growth-stage crypto projects across DeFi, infrastructure, consumer apps, and gaming.
Our team has executed campaigns with leading L1/L2 ecosystems, DeFi protocols, and community-driven projects.
We focus on narrative design, community activation, cross-market growth, and delivering impactful results for clients in Asia and globally.
We are now expanding our BD and Community Ops teams.
The Role : Business Development Manager (75k-150k)
We’re looking for an energetic, relationship-driven BD Manager to help us expand our client base across Asia, Europe, and emerging markets.
You will represent the agency, identify growth opportunities, and build long-term relationships with founders, marketing teams, and communities.
Responsibilities
Identify and reach out to potential clients across DeFi, L1/L2, GameFi, infrastructure, and consumer crypto.
Manage inbound leads and maintain ongoing partner relationships.
Develop proposals for marketing, community growth, content strategy, and campaign execution.
Attend virtual and in-person events; represent the agency in AMAs, panels, or client calls.
Create collaboration opportunities with ecosystems, media outlets, KOL networks, and community groups.
Work closely with internal teams (content, community, strategy) to align solutions with client needs.
Requirements
1–3 years of BD, partnerships, or client-facing experience (Web3 preferred).
Strong communication and negotiation skills.
Understanding of crypto communities, social platforms, and narrative-driven marketing.
Comfortable working in a fast-paced, global, remote environment.
English required; Asian language fluency is a strong plus.
Familiarity with Southeast Asia Web3 projects, with strong relationships with project teams preferred.
Bonus
Experience in a Web3 agency, marketing firm, or KOL network.
Existing network of founders, CMOs, or BD leads within crypto.
Familiarity with China/SEA/India/Korea/Japan market dynamics.
Business Developer
About FlipFlop Launchpad:
FlipFlop is a community-driven crypto launchpad connecting innovative projects with global investors. We are building a diverse and dynamic team passionate about blockchain growth and ecosystem development. Join us to help onboard new projects, coordinate events, and grow engaged communities worldwide.
Your Role:
As a Part-Time Business Developer, you will source and onboard new crypto projects, arrange Ask Me Anything (AMA) sessions, and drive community growth. You’ll play a key role in expanding FlipFlop’s reach and impact while earning competitive task-based rewards.
What You’ll Do:
- Bring serious projects and teams to launch on our platform
- Coordinate weekly AMAs with relevant crypto projects
- Grow our Telegram or Discord communities with genuine members
- Develop partnerships and onboard influencers for ecosystem growth
Who You Are:
- Passionate about crypto and blockchain technology
- Self-motivated with strong communication skills
- Able to work independently and as part of a remote global team
- Comfortable with a task-based payment system and targets
Experienced in community building or business development is a plus
Payment structure:
Base Compensation: $500 USD monthly (subject to adjustments based on task completion) + 20% of total minting/launch fees collected from each project you bring onboard + additional rewards.
Core Tasks and Deductions:
1. Bringing New Projects to Launch
Task: Source and onboard at least 1 serious project and team per month to launch on our platform.
Penalty: Failure to complete this task will result in a $100 deduction from the $500 base compensation.
2. Arranging Project AMAs (Ask Me Anything Sessions)
Task: Coordinate and host 1 AMA per week with new or relevant crypto projects.
Penalty: Each AMA not completed will deduct $80 from the base compensation.
3. Community Growth
Task: Attract 100 genuine, legitimate new members to the official Telegram or Discord group monthly via a custom invitation link.
Penalty: Failure to reach the goal will deduct $50 from the base compensation.
Extra Rewards (No deductions):
4. Partnership Development
Task: Secure partnerships with crypto communities, marketing agencies, or influencers.
Reward: $100–$200 per signed partnership depending on scope and value.
5. KOL/KOC and Influencer Onboarding
Task: Recruit Key Opinion Leaders (KOLs) or Key Opinion Consumers (KOCs) to support project launches or campaigns.
Reward: $25–$50 per vetted KOL/KOC added.
Why Join Us:
- Flexible remote work with a supportive global team
- Competitive task-based compensation with bonuses and rewards
- Opportunity to be part of an innovative and fast-growing launchpad
Junior Crypto Spot & Perpetual Market-Making Trader
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.
Junior Crypto Analyst & Trader (Remote, Training Included)
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.