Mid Python Developer
About us:
B2C2 is at the forefront of the digital asset industry, cultivating a future-focused ecosystem. We have facilitated institutional access to cryptocurrency with our dependable liquidity solutions in various market conditions.
Founded in 2015 and later acquired by SBI, a Japanese financial group, B2C2 stands as a leading innovator in the crypto market. Our commitment to crypto-native technology and continuous product enhancements has solidified our position as the preferred partner for diverse institutions globally. Operating as a standalone entity, B2C2 is headquartered in the UK, with additional offices in the US and Japan. B2C2 OTC Ltd. is regulated by the UK’s Financial Conduct Authority (FRN 810834).
Our company culture embraces top talent and individuals who align with our values. If you are searching for a role in a dynamic company within an evolving industry, continue reading for more details.
SCOPE OF THE ROLE
This role offers a diverse array of challenges across multiple teams, providing a dynamic learning environment across various business domains. Your contributions will directly impact numerous stakeholders within the organization, aligning with strategic business objectives and technological advancements. Collaboration with cross-functional teams to understand project requirements and contribute to system design will be a key aspect of this engaging position.
Some of the technologies commonly utilized in our projects include Django with DRF and Celery, Python 3.11, AWS EKS for Kubernetes, Amazon Aurora PostgreSQL, Amazon ElastiCache for Redis, and Amazon MSK for Kafka.
Role and Responsibilities
Develop and maintain efficient and high-quality Python-based applications and components, ensuring adherence to coding standards
Enhance and upkeep in-house Python shared libraries to ensure their reliability and effectiveness
Write well-documented, thoroughly-tested, and maintainable code to achieve project goals and deadlines
Troubleshoot and resolve technical issues and software defects promptly to minimize disruption in revenue-generating processes
Collaborate with different teams to define and implement new features
Participate in code reviews and incorporate feedback for continuous improvement
Uphold good quality internal documentation standards
Skills Required
- Solid experience of at least 5 years in Python software development
- Proficiency in building, deploying, and managing scalable web applications
- Familiarity with relational databases, SQL, and web technologies and protocols (e.g., HTTP, WebSocket)
- Clean and efficient coding style
- Comfortable with writing automated tests and ensuring test coverage for new and existing code
- Demonstrated experience in end-to-end project ownership and providing production support for essential services
- Ability to work autonomously and engage with individuals at all organizational levels
- Excellent communication skills in both Polish and English at B2/C1 level
Skills Desired
- Experience with Django and DRF or other common Python web frameworks
- Familiarity with Celery, PostgreSQL, Kafka, Redis, or gRPC
- Some exposure to Linux, Docker, Kubernetes, and/or AWS
- Interest in cryptocurrency and trading
- Experience with ReactJS or front-end development
A strong culture centered on key values is a core aspect of B2C2's success.
Equal Employment Opportunities Policy:
B2C2 upholds a commitment to fostering equal employment opportunities by welcoming applicants from diverse backgrounds. We adhere to a policy that promotes fair recruitment, hiring, training, and professional development practices, without discrimination based on attributes such as race, color, religion, sex, national origin, age, disability, genetic information, marital status, or any other characteristic protected by applicable laws. Our inclusive environment aims to attract, engage, promote, and retain top talent through flexible working arrangements where applicable.
Technical Meeting Support Specialist
We are a startup founded in 2022 and doing software development outsourcing.As most US agencies, our business is inside the US, and outsource the projects to the worldwide agencies and developers. We mainly work on Upwork and Linkedin and have some resources there. For managing projects, our partners and developers cannot attend the meetings because they handle 2~3 projects, and the English level is not native, So we are looking for a business partner who is in native English and can attend the client meetings.
Goals
Attend the initial client meetings and help our agency to get the new project. (Introduction, Technical Challenges, Culture meeting and …)
Attend the meetings using my team member’s name, not your name.
Attend the ongoing meetings and maintain the projects assigned.
Specifications
This role is a bit tricky and candidates should have in-depth software development experience (more than 7 years) and native English speaking level. The right candidate needs to attend the technical meetings and then answer the technical questions and coding tests by screen sharing. It’s a beneficial position for the candidates who has rich experience in software development since it's a non-code and fun position.
Interviewer (Native English)
About
Small, experienced engineering team specializing in AI/ML, cloud, and full-stack development for US clients.
Role
We are looking for a native/fluent English speaker to represent our engineering team in client meetings, interviews, and project discussions.
Responsibilities
Join client meetings and interviews.
Communicate requirements, timelines, and technical approaches.
Bridge communication between clients and developers.
Build strong relationships with US-based clients.
Requirements
Native/fluent English speaker based in the US, Canada, or Latin America.
Strong verbal communication skills.
Basic understanding of software development, AI/ML, cloud, or web/mobile.
Comfortable with client-facing technical discussions.
Offer
30-50$/hr.
Fully remote and flexible schedule.
Full technical support during client meetings.
Direct access to US clients and networking opportunities.
Type: Partnership / Contractor
Location: Remote (US/Canada/Latin America)
Founding Technical Partners for Oferli – Elite Web & Mobile Development Team🌐
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
Full-time Hackintosh iOS development
Responsibilities:
- Designing, developing, and implementing iOS applications for our Hackintosh platform
- Collaborating with cross-functional teams to define, design, and ship new features
- Troubleshooting application bugs and implementing solutions
- Ensuring the performance, quality, and responsiveness of applications
- Staying up-to-date with the latest industry trends and technologies
- Providing technical support and guidance to users as needed
Requirements:
- Proven work experience as an iOS Developer or similar role
- Proficient in Objective-C, Swift, and Xcode
- Strong understanding of iOS development best practices
- Excellent problem-solving skills
- Ability to work independently and as part of a team
- Strong communication and interpersonal skills
- Knowledge in web, mobile, and software development, engineering & architecture, customer service, and accounting and consulting specialist
If you are passionate about iOS development and eager to work on innovative projects in the Hackintosh space, we'd love to hear from you. Please apply with your resume and portfolio to be considered for this exciting opportunity.
Software Engineer (Python)
The data science team creates machine learning models; your task is to create the robust, deterministic platform that supports them. Your responsibilities will include designing scalable architectures, resolving concurrency issues, ensuring seamless data migrations without downtime, and ensuring the stability of legacy services as their replacements are developed.
Responsibilities:
Full ownership of the technical roadmap of our Python/FastAPI ecosystem, encompassing API design, background task distribution, and production observability.
Manage and develop our PostgreSQL schema in terms of data integrity and persistence, including migrations, lock mechanisms, query optimization, and multi-tenant data isolation while adhering to HIPAA/PHI compliance.
Design and implement resilient image processing pipelines for handling intensive medical imaging files in asynchronous, event-driven workflows from ingestion and de-identification to model inference and result delivery.
Establish reliable API interfaces with frontend teams and clear model input/output contracts with data scientists to ensure a smooth cross-functional collaboration.
Keep thorough technical records, oversee the transition of legacy systems, and maintain Architecture Decision Records (ADRs).
Requirements:
Minimum of 5 years of software engineering experience with demonstrated production ownership and deep expertise in systems and backend fundamentals.
Proficiency in concurrency and distributed systems with a strong understanding of race conditions, deadlocks, idempotent processing, and messaging failure modes.
Hands-on experience with PostgreSQL internals and message brokers in a production environment.
Strong commitment to typed code, automated testing, CI/CD pipelines, Docker, and modern AI developer tools.
Ability to challenge requirements, set technical standards, and communicate effectively in both English and Chinese.
Nice-to-have Skills:
Familiarity with operating containerized workloads on Google Cloud Platform.
Direct experience with medical imaging workflows, DICOM standard protocols, or healthcare regulatory frameworks.
Knowledge of multi-tenant database patterns or deploying hybrid cloud/on-prem solutions.
Exposure to scientific computing contexts like NumPy, computational geometry, or frontend technologies like React/TypeScript.
Certain AI tools may be utilized in the hiring process for tasks such as application review and assessing candidate materials. These tools assist but do not replace human judgment, with final hiring decisions being made by humans. For more information on data processing, please contact us directly.