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:

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

Location: San Francisco, CA (100% On-site)

Compensation: $150,000 - $210,000 (Based on experience and qualifications) + Competitive Equity

We are a growing technology company dedicated to accelerating life science research with the ultimate goal of eradicating disease. We are building a Scientific Physical AI platform that leverages AI, robotics, and biology to help scientists scale their lab work and generate orders of magnitude more data than previously possible. Join our mission-driven team of engineers to build the future of scientific research.

As a Robotics Software Engineer, you will be a key player in developing and deploying intelligent robotic systems that automate and scale complex laboratory procedures. This is a highly hands-on role where your code will directly control physical robots.

Key Responsibilities:

Our team is searching for a skilled Middle Python Developer to strengthen our backend and help evolve our product architecture. You’ll work closely with experienced engineers, bring fresh ideas to the table, and take ownership of key components.

Your responsibilities will include:

• Writing, maintaining, and optimizing high-quality code;
• Analyzing the existing solution architecture and taking an active role in designing a new one;
• Leading a small team of two backend developers.

What we’re looking for:

• 3-4 years of experience in backend development with Python 3.x (FastAPI or Flask);
• Strong skills in designing and building RESTful APIs;
• Solid understanding of OOP principles, data structures, and algorithms;
• Hands-on experience with asynchronous programming (asyncio, aiohttp) and API integrations;
• Strong knowledge of SQL and experience with ORMs (SQLAlchemy or Django ORM);
• Practical experience with caching tools (Redis, Memcached) and database migrations;
• Good understanding of Docker, CI/CD pipelines, and version control (Git);
• Familiarity with cloud platforms (AWS, GCP, or Azure) and web servers (Nginx, Gunicorn, Uvicorn);
• Knowledge of design patterns, SOLID principles, and system design;
• Strong communication skills.

Our team is searching for a skilled Middle Python Developer to strengthen our backend and help evolve our product architecture. You’ll work closely with experienced engineers, bring fresh ideas to the table, and take ownership of key components.

Your responsibilities will include:

• Writing, maintaining, and optimizing high-quality code;
• Analyzing the existing solution architecture and taking an active role in designing a new one;
• Leading a small team of two backend developers.

What we’re looking for:

• 3-4 years of experience in backend development with Python 3.x (FastAPI or Flask);
• Strong skills in designing and building RESTful APIs;
• Solid understanding of OOP principles, data structures, and algorithms;
• Hands-on experience with asynchronous programming (asyncio, aiohttp) and API integrations;
• Strong knowledge of SQL and experience with ORMs (SQLAlchemy or Django ORM);
• Practical experience with caching tools (Redis, Memcached) and database migrations;
• Good understanding of Docker, CI/CD pipelines, and version control (Git);
• Familiarity with cloud platforms (AWS, GCP, or Azure) and web servers (Nginx, Gunicorn, Uvicorn);
• Knowledge of design patterns, SOLID principles, and system design;
• Strong 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:

About Octopus by RTG
Octopus by RTG is the tech hiring and outsourcing arm of Robusta Technology Group, dedicated to connecting exceptional tech talent with top-tier organizations across the MENA, GCC, Europe, the US, and Canada. We specialize in building strong, long-term partnerships between skilled professionals and innovative companies. Our mission is to empower growth, innovation, and excellence by matching the right talent with the right opportunities.

Currently, we are hiring a Sr. Backend Developer for one of our partner organizations in KSA on a 1-year contract, offering the opportunity to contribute to exciting projects within a dynamic and forward-thinking environment.

Main Responsibilities

Backend Development & Architecture

• Design, develop, and maintain scalable, secure backend systems using Java and Spring Boot.
• Contribute to architecture design ensuring modularity, maintainability, and high performance.
• Build and manage microservices-based architectures.

API & Integration

GoMining is seeking a talented DevOps/SRE Engineer to join our team, ensuring the reliability, scalability, and security of our advanced crypto and fintech products.

This role is ideal for professionals passionate about building robust infrastructure, streamlining CI/CD processes, and maintaining high-availability systems in fast-paced, technology-driven environments. You will play a pivotal role in optimizing system performance, automating operations, and enhancing the resilience of our services.

We are looking for someone who brings technical expertise, problem-solving skills, and innovation to the table.

Responsibilities:

Infrastructure Development & Maintenance

• Design, deploy, and maintain Kubernetes clusters, virtual machines, and local infrastructure.
• Develop and enhance platform architectures with a focus on scalability, reliability, and security.
• Apply DevOps principles across product teams to improve the Software Development Life Cycle (SDLC).

Application Support & Collaboration

• Develop and support business-critical applications.
• Collaborate with developers to streamline features and resolve operational issues.
• Ensure reliable application operations using modern SRE practices (SLI, SLO, Error Budgets).

Automation & CI/CD

Who we are:

Centah Inc. is a scaling Software as a Service (SaaS) company that is part of Financeit. We have become the leading experts in providing innovative and configurable solutions to home improvement retailers, trades, construction and facility management departments.  Our world-class development team has created configurable Work Order Management software that helps our clients to maximize their service levels and increase sales leads.

Together we created a place where collaboration, inclusivity, fairness, and respect aren’t just ideas that get talked about, but are part of who we are. If such a workplace intrigues you, we hope you’ll join us.

About the role:

Our development team is searching for an experienced Software Developer to help our company in pursuit of our vision and goals! Centah supports some of the largest retailers in the world with lead generation, workflow management, live contact agents, financing and promotions.

Our current technology stack includes a Ruby on Rails backend, Ember.js for frontend development, and PostgreSQL as our database system.

We are looking for developers who value continuous learning and development, collaboration with the team, and of course the quality of their code.

What you’ll do:

Our client is a well-funded, early-stage AI company with a bold mission to reinvent wealth management. They are building a unified, AI-native platform to automate the entire wealth management stack, which is one of the largest and most fragmented sectors in financial services. With a $15.5M seed round from top-tier VCs like General Catalyst and Venrock, and a team of just three employees, this is a unique opportunity to join a de-risked company with extensive runway and existing partnerships.

As a Founding AI Engineer, you'll be employee number three and will play a mission-critical role in scaling the company from the ground up. You will own major technical domains and work directly with the founder to establish the core technical foundations. The ability to close the end-to-end process quickly is a key part of the company culture.

You will be responsible for:

• Building core platform components that unify fragmented wealth management tools.
• Designing and building end-to-end AI-powered workflows that automate financial advisor processes.
• Developing multi-agent AI workflows to deliver intelligent financial insights.
• Architecting scalable systems for real-time financial data orchestration.
• Making critical technical decisions with a high degree of autonomy.

Requirements