Talent Pool: Software Engineer, Java
Interested in exploring opportunities with Flow Traders' Product Development team in New York and Chicago? You can join our Java Talent Pool by signing up below. We are continuously seeking talented engineers to be part of our expanding organization. If we find that your experience aligns with our team's objectives, we will contact you for a brief introductory call to get to know you better and understand your interest in Flow Traders.
As a part of our Java Engineers team, you will play a key role in enhancing our in-house trading platform through the development of efficient code, innovative solutions, and the maintenance of existing systems with a focus on low latency and stability. Working within small, agile teams aligned with our business units, we are able to adapt promptly to changing market conditions. Our close collaboration with the Trading team facilitates fast feedback loops and immediate insights into the impact of each modification. To promote teamwork and autonomy, we emphasize shared libraries, code reuse, and the continual evolution of our application architecture.
Some of the technologies we work with
- Common stack includes Java 8 & Java 11, Netty, Chronicle Queue, Hibernate, MariaDB, Cassandra, gRPC, Guava, and Prometheus
- Big Data stack involves Kafka, HDFS, AirFlow, Spark, Avro, Hazelcast, Kubernetes, and Docker
- Web/UI technologies comprise Spring MVC, Jetty, Mustache, JavaFX, and Jackson
- Testing tools such as Mockito, Truth, and JUnit5 are in use
- Development life-cycle support tools include Bitbucket, Bamboo, Confluence, Jira, Sonar Cube, IntelliJ IDEA, and YourKit profiler
Responsibilities
- Collaborate with global Java Engineering team members to align requirements, implementations, and standards
- Deliver critical-path software for core US roadmap items that require real-time functionality
- Take ownership of a set of related applications and collaborate closely with business stakeholders on a daily basis
At Flow Traders, we value open and transparent communication with our employees, stakeholders, and communities. Our salary structure is based on comprehensive market research, taking into account factors such as experience, location, and skill set. Additionally, we consider ourselves a unified global team, and to reflect this, all employees have the opportunity to share in the company's success through annual discretionary variable remuneration based on overall performance and contributions.
According to NYC salary transparency regulations, the total compensation for this role includes a base salary range of $160,000 to $200,000 plus annual discretionary variable remuneration.
Note: Flow Traders does not accept unsolicited resumes from professional staffing or search firms. Any resumes or candidate information submitted without a valid search agreement will be considered available for contact by Flow Traders at their discretion, and no placement fee will be paid if the candidate is hired.
Ассистент по проектам веб-разработки и веб-дизайна
Ищу человека, который будет помогать вести проекты по веб-разработке и дизайну в сфере крипты.
Если коротко — нужно доводить проекты от старта до финала: общаться с командой, следить за сроками и чтобы всё было сделано хорошо.
Что нужно делать:
Вести проекты от начала до конца
Общаться с разработчиками, дизайнерами и фрилансерами
Следить за сроками и задачами
Общаться с клиентами
Что важно:
Есть опыт в веб-проектах
Умеешь работать сам или с командой
Уже работал с фрилансерами
Нормально общаешься и умеешь организовать процесс
Понимаешь базу крипты / Web3 (не обязательно супер-эксперт)
Условия:
От $3000 в месяц
Можно получать оплату в крипте
Удалёнка
Долгосрочная работа и много проектов
Ищу простого и надёжного человека, который реально доводит дела до конца
Assistant for web development and web design projects
I’m looking for someone to help manage web development and design projects in the crypto space.
In short — the goal is to take projects from start to finish: communicate with the team, keep track of deadlines, and make sure everything gets done properly.
What you’ll do:
Manage projects from start to finish
Communicate with developers, designers, and freelancers
Keep track of deadlines and tasks
Communicate directly with clients
What I’m looking for:
Experience with web projects
Ability to work independently or with a team
Experience working with freelancers
Good communication and organizational skills
Basic understanding of crypto / Web3 (no need to be an expert)
Conditions:
Starting from $3000/month
Crypto payments available
Fully remote
Long-term work with a steady flow of projects
I’m looking for a reliable, down-to-earth person who actually gets things done
Startup
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.
Junior / Middle Metaverse Developer (Unity / Web3 / VR)
You will work with Unity, WebGL, and blockchain technologies to create engaging metaverse features and optimize them for performance across different devices. The developer will collaborate with designers and backend engineers to deliver scalable and stable products.
Requirements include experience with Unity and C#, understanding of 3D development, Web3 or blockchain basics, and familiarity with Git and API integration. Experience with VR/AR, NFTs, or multiplayer systems is a plus.
We offer remote work, flexible hours, crypto payments, and the opportunity to build innovative metaverse products.