Associate, Derivatives Engineering
Who We Are:
Our company focuses on developing products and services to facilitate global investments in economic progress. We are committed to leveraging blockchain and crypto advancements to enhance various sectors of the economy. Our aim is to create a society where asset ownership and value circulation mirror the ease of information flow. Galaxy is a leading player in the digital asset and blockchain space, catering to institutions, startups, and individuals seeking exposure to the crypto economy. Backed by strong capital and trust within the industry, we offer tailored platform solutions catering to a digitally native ecosystem through three key operational segments: Global Markets, Asset Management, and Digital Infrastructure Solutions. Our diverse services encompass trading, lending, strategic advisory, institutional-grade investment solutions, proprietary mining and hosting services, network validator solutions, and enterprise custodial technology development. Led by our CEO and Founder Michael Novogratz, our team comprises crypto enthusiasts and seasoned finance professionals focused on reshaping the future of finance and Web3. With our headquarters in New York City, we have a global presence spanning North America, Europe, and Asia.
What We Value:
We rely on a diverse team of innovators and fast-paced individuals dedicated to supporting investors and creators in fostering global economic vibrancy. We seek individuals who excel in an environment of achievers and builders, embracing high performance, transparent feedback, and a mission-centric mindset. Our values set the tone for our work culture and drive our collective success.
- Upholding excellence
- Pursuing effectiveness through selectivity
- Operating cohesively while fostering independence
- Openly addressing disagreements
- Encouraging autonomous decision-making
- Building impactful teams
Joining the derivatives engineering unit means bringing expertise in data pipelining and API development. This role requires proficiency in various backend technologies, a deep understanding of core software engineering concepts, and hands-on experience with mathematical and financial libraries in software applications. Moreover, familiarity with deployment processes for applications, including testing and cloud provider utilization, is crucial. An eagerness to explore new technologies and expand skill sets across different business verticals and technology platforms will be highly valuable.
As part of the team, you will be involved in addressing production support issues and enhancing CI/CD automation and DevOps practices. Familiarity with technologies like Java, Python, and Go, alongside derivatives pricing models and messaging platforms, is advantageous. Prior exposure to relational and non-relational databases, time series databases, Spark, and other relevant tools is desirable.
What You’ll Do:
Collaborate closely with the Derivatives trading desk to boost trading and risk management tools effectiveness and develop reusable derivatives pricing algorithms.
What We’re Looking For:
- At least 3 years of experience in software development
- Demonstrated expertise in data pipelines, APIs, and reporting tools
- Strong knowledge of data structures and optimization strategies
- Educational background in computer science, physics, engineering, or equivalent programming experience
Bonus Points:
- Familiarity with LLM Finetuning and RAG Optimization
- Experience in full lifecycle development of commercial systems
- Background in Crypto or Finance
The indicated base salary ranges are applicable to New York-based candidates and will be adjusted based on candidate expertise and location. We follow a comprehensive compensation approach encompassing a competitive base salary, annual bonus, and equity incentives.
What We Offer (US):
- Competitive base salary, bonus, and equity compensation
- Paid time off scheme
- 3% 401(k) company contribution
- Health and protective benefits for employees and dependents
- Comprehensive Parental Leave policy
- Access to virtual coaching and counseling services
- Culture adept at fostering learning about the Crypto industry
- In-office daily snacks
- Dynamic, entrepreneurial, and collaborative work environment
- Employee Resource Groups
Please note that benefits may vary by location.
Respecting and embracing diversity, we offer equal opportunities to all employees and job applicants regardless of various factors as specified by legislation. Concerning applicants with disabilities, we commit to facilitating reasonable accommodations throughout the application and interview process. If support is needed, please contact careers@galaxy.com.
Senior Software Engineer (Blockchain)
MentTech is a forward-thinking technology company dedicated to transforming how mentoring and learning are delivered in the digital age. By combining advanced tools, intelligent systems, and a human-first approach, MentTech helps individuals, teams, and organizations harness the power of mentorship to unlock potential, build skills, and achieve lasting growth.
The Role
We are seeking a Smart Contract Developer responsible for ensuring that game listings within MentTech work properly and ensuring compliance with all game store policies.
Key Responsibilities:
• Architect, implement, and deploy secure smart contracts for an on-chain Play-to-Earn GameFi ecosystem
• Lead contract design decisions with a focus on robustness, auditability, gas efficiency, and resilience to attack vectors
• Mentor/junior developers: perform code reviews, establish standards, best practices in security & testing
• Collaborate cross-functionally with game designers, backend, QA, and security teams to align smart contract features with product roadmap
Qualifications:
• 2+ years hands‐on experience developing & deploying smart contracts (Solidity / EVM or equivalent) in production environments
• Track record of writing secure contracts, familiarity with common vulnerabilities (reentrancy, integer over/underflow, front-running, flash loans, etc.)
• Experience with audits, formal verification, fuzz testing, or other advanced contract assurance methods
• Strong test suite / CI workflow skills; comfortable using tools like Hardhat, Foundry, Truffle etc.
• Solid understanding of GameFi mechanics and how on-chain economics work
Bonus Points:
• Experience on multiple EVM chains or Layer-2 / sidechains
• Knowledge of cross-chain bridges, oracles, NFTs, tokenomics design
• Contributions to open-source security tooling or prior audit reports or published code you’re proud of
Why join MentTech?
At MentTech, we cultivate a culture of flexibility, autonomy, and the freedom to make a real impact on the broader Web3 ecosystem. Experience the advantages of a fully remote working environment where your expertise and contributions are rewarded with competitive compensation tailored to your role and project influence.
Ment Tech Labs
• Employee Equity & Incentives: Unlock future growth with equity and other potential incentives.
• Entrepreneurial Culture: Join a collaborative environment where we innovate together as partners.
• Cutting-edge Innovation: Work at the forefront of gaming and blockchain.
• Key Strategic Projects: Be part of transformative initiatives that are redefining the gaming landscape.
• Remote Flexibility: Enjoy a truly flexible, fully remote work setup that supports your lifestyle.
• Talented Team: Collaborate with a team of passionate, driven, and skilled professionals.
• Community Impact: Contribute to the growth and success of the Web3 and gaming communities.
• Flexible Payment Options: Receive payments in crypto or fiat, tailored to your preference.
• Growth Opportunities: Access valuable learning experiences and development paths.
MentTech Labs, Inc. is an equal opportunities workplace that doesn’t discriminate based on race, ethnicity, gender, ancestry, national origin, religion, sex, sexual orientation, gender identity, age disability, veteran status, genetic information, marital status, or any other legally protected status.
🚀 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
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.
Growth Marketing Lead (User & Volume Growth Focus)
This is not a traditional community manager role. We’re looking for someone with a proven track record of onboarding users, increasing engagement, and directly contributing to product adoption and transaction/activity volume.
What You’ll Own
Develop and execute user growth strategy end-to-end
Drive measurable increases in active users and platform volume
Build acquisition funnels (organic + partnership-driven)
Optimize onboarding flows and activation metrics
Lead social presence across Twitter/X and other platforms
Represent the project in Twitter Spaces and relevant community events
Launch and manage growth campaigns, incentives, and referral programs
Track and report on growth KPIs (CAC, activation rate, retention, volume impact)
Must-Have Experience
Proven track record of growing users and/or trading/activity volume in a startup, Web3, fintech, or SaaS environment
Demonstrated ability to turn social presence into measurable growth
Experience hosting or speaking in Twitter Spaces and similar forums
Strong understanding of growth funnels, activation metrics, and retention loops
Data-driven mindset (comfortable with analytics tools and experimentation)
Bonus Points
Experience in crypto, trading platforms, or financial products
Experience designing referral or incentive systems
Existing relevant audience/network
What We Care About
We don’t care about vanity metrics (likes, impressions).
We care about:
Active users
Retention
Conversion
Volume growth
Sustainable acquisition loops
If you’ve scaled a product before and can show real numbers behind your impact, we want to talk.
Senior Blockchain Engineer
Protocol Core: Development and optimization of L2-settlement logic on Solidity/Yul.
Bridge Security: Designing secure cross-chain gateways with protection against double spending and reorgs.
Node Infrastructure: Optimizing the interaction of node validators with the EVM stack.
Gas Engineering: Extreme cost reduction for publishing data in L1 (Deneb/Cancun-ready).
Requirements:
Deep knowledge of Solidity (0.8.20+) and Assembly (Yul).
Experience working with Foundry (Fuzzing/Invariants) and understanding the architecture of OP Stack or Arbitrum Orbit.
Skills of working with indexers (The Graph/Envio) and the RPC layer.