Senior/Lead Backend Engineer - FinTech/Crypto

location: Remote - Fully remote across Europe - they can do B2B or hire through EoR.

compensation: $115K - $130K

We are seeking a Senior/Lead Backend Engineer to join our team dedicated to revolutionizing the FinTech and crypto industries. You will be a pillar of our engineering team, working directly with the product team to solve complex banking and crypto problems. This role requires an obsession with robust architecture, efficiency, and resilience, and a commitment to delivering the most elegant solutions and the best product for our customers.

This is a fast-paced, high-impact role where your speed, ability to deliver, and capacity for elegant problem-solving will be critical. You will be responsible for building the core services that drive our new paradigm in finance.

What you’ll be working on:

Applied AI Engineer

Location: NYC (100% On-site in Soho)

Compensation: $150,000 - $225,000 (Base Salary) + Competitive Equity

We are building the world's largest network of doctors, patients, and first-party data, applying AI to every step of bringing new therapies to market. Our first product ensures patients get life-changing therapeutics as quickly and cheaply as possible by abstracting complex insurance, affordability, and supply chain logistics. Backed by top-tier investors, we are seeking an Applied AI Engineer to take end-to-end responsibility for projects that drive user growth, operational efficiency, and revenue generation.

This is a demanding, high-autonomy role focused on the production use of LLMs and ML to solve core business problems in the highly complex healthcare and life sciences space. You will operate as an owner, driving impact across the product surface area and influencing business decisions.

If you join, you will:

GoMining is seeking a highly skilled Database Engineer to join our team and ensure the performance, scalability, and reliability of our databases. This role is ideal for someone passionate about data architecture, high-performance database systems, and large-scale analytics in fast-paced fintech and crypto environments.

You will play a critical role in designing database solutions, optimizing queries, managing replication, and ensuring data integrity.

Responsibilities:

Database Architecture & Design

• Design, implement, and optimize database schemas for high-performance applications.
• Develop strategies for data partitioning, replication, and scaling.
• Evaluate and implement new database technologies for performance and reliability.

Maintenance & Optimization

• Monitor database performance and implement query optimization, indexing, and caching strategies.
• Manage backup, restore, and disaster recovery plans.
• Conduct capacity planning and performance tuning for production workloads.

Collaboration & Support

Senior Data/AI/ML Software Engineer

Location: Hybrid (San Francisco Bay Area) or Remote (US Only for exceptional candidates)

Compensation: $150,000 - $300,000 (Varies based on level and location) + Equity

We are a pioneering Clinical Data Intelligence platform that leverages cutting-edge AI, Machine Reading, and Knowledge Graph technology to automate cognitive tasks involving clinical data. Our solutions directly empower clinicians, researchers, and care coordinators to improve efficiency, reduce frustration, and enhance patient care. We are seeking a Senior Data/AI/ML Software Engineer to build and scale the core components of our mission-critical platform.

You'll be responsible for designing, implementing, and improving data-intensive systems that automate the extraction and synthesis of health information. Your work directly impacts applications used by clinicians every day.

What you'll do:

FlatGigs is hiring for a client developing logistics and operations tech solutions. As a Backend Engineer (Django), you’ll build reliable APIs, manage databases, and ensure system performance and security. You’ll collaborate closely with frontend and mobile developers to deliver scalable, efficient products that simplify real-world logistics.

Key Responsibilities

• Develop backend services using Python (Django)
• Build and maintain RESTful APIs
• Manage PostgreSQL databases
• Optimize performance and reliability
• Collaborate on CI/CD and version control with Git/Docker
• Write clean, secure, maintainable code

Requirements

• 3+ years of Django experience
• Strong understanding of API design and security
• Excellent problem-solving and communication skills

Member of Technical Staff (Platform Development, Construction Tech)

Location: San Francisco, CA

Employment Type: Full-time

Work Arrangement: On-site 5 days a week

About the Role

Our client is a rapidly scaling construction work efficiency platform, leveraging wearable cameras and cutting-edge AI vision models to analyze on-site productivity. They are tackling the $1.6 trillion annual productivity loss in the construction industry by building tools that help teams save on labor costs and improve safety. The company has secured a $5 million seed round and is scaling rapidly toward its Series A.

They are seeking an exceptional Member of Technical Staff to build and scale core platform features that transform how construction teams manage safety, productivity, and workforce development for their frontline craftworkers. This is a high-impact, hands-on coding role where you'll own critical initiatives.

What You'll Build & Solve

You will be responsible for building complex, scalable workforce management systems and intuitive user interfaces for non-technical users in the field:

Position Overview
AHOY is seeking a Staff Node.js Backend Developer to join our remote team. In this role, you will lead the design and development of robust backend solutions that power our applications. You will have a significant impact on our technology stack and architecture while working with a talented team of engineers.

Key Responsibilities:

• Design, develop, and maintain scalable and high-performance backend services with Node.js.
• Architect and implement complex features and improvements in our existing applications.
• Collaborate with product managers and frontend developers to create seamless integrations.
• Mentor and guide junior developers through code reviews and architecture discussions.
• Ensure code quality through testing, monitoring, and adherence to best practices.
• Stay up-to-date with emerging technologies and industry trends to continuously improve our systems.

Requirements

Requirements:

Position Overview
AHOY is on the lookout for a Senior Node.js Backend Developer to join our dynamic remote team. In this role, you will be responsible for designing and implementing high-performance backend services that drive our applications. You'll collaborate closely with cross-functional teams to deliver top-notch solutions and elevate our technology stack.

Key Responsibilities:

• Design, develop, and maintain robust and scalable backend services using Node.js.
• Collaborate with frontend developers to ensure effective integration of user-facing elements with server-side logic.
• Optimize applications for maximum speed and scalability.
• Implement security and data protection measures
• Participate in code reviews, mentoring junior developers, and fostering a culture of continuous improvement.
• Troubleshoot, debug, and upgrade existing systems while keeping documentation up to date.

Requirements

Requirements:

Company Profile
AHOY is a leading technology firm focused on innovation and digital transformation. We specialize in developing scalable software solutions that empower businesses and enhance user experiences. Our diverse team is driven by a commitment to quality and excellence, providing an inclusive and dynamic workplace for tech enthusiasts to grow and thrive.

Position Overview
We are in search of a talented Senior Full Stack Developer to join our expanding team. The ideal candidate will be responsible for building high-performance applications and ensuring seamless integration of frontend and backend services. This role requires a solid understanding of modern web technologies and a passion for delivering exceptional user experiences.

Requirements

Key Responsibilities

Position Overview
AHOY is looking for a talented Node.js Backend Developer to join our remote team. In this role, you will be instrumental in building and maintaining backend applications that serve as the backbone for our innovative projects. You will work closely with frontend developers and product teams to deliver efficient and scalable solutions.

Key Responsibilities:

• Develop, test, and maintain server-side applications and APIs using Node.js.
• Collaborate with cross-functional teams to define, design, and implement new features.
• Optimize applications for maximum speed and scalability.
• Write clean, maintainable code and ensure code quality through testing and documentation.
• Troubleshoot and debug applications and identify any bottlenecks.
• Stay current with emerging technologies and best practices in backend development.

Requirements

Requirements: