Senior Backend Engineer

Location: US or Europe (Must have solid overlap with EST)

Remote | Full-time

Compensation: $150K - $200K

Our client is an industry-leading DeFi organization building the next generation of trading infrastructure. Operating as the largest builder-code product on a major decentralized exchange protocol, the company has processed over $65B in cumulative trading volume and generated eight-figure revenue over the past year. With a user base exceeding 400,000 registered traders, the platform is at the forefront of democratizing access to global financial markets across crypto, equities, and commodities.

The organization operates as a lean, highly technical team of individual contributors who prioritize autonomy, ownership, and rapid execution. This environment is designed for a Senior Backend Engineer who thrives in 0-to-1 environments and is capable of building ambitious systems from the ground up. This role is central to scaling trading interfaces that manage billions of dollars in daily volume while maintaining high-speed, intuitive user experiences.

Key Responsibilities

Mobile App Engineer

Location: New York (Office)

On-site | Full-time

Compensation: $185K - $300K

Our client is developing a next-generation mobile trading platform designed to redefine the future of finance. Unlike simplified retail applications, this platform offers a full-featured trading experience, including live market data, complex order types, and multi-venue execution.

The Mobile Engineer will be responsible for bringing the power of professional trading terminals to a mobile form factor. The role involves tackling sophisticated engineering challenges, such as maintaining synchronized real-time price feeds and ensuring system performance remains stable during periods of high market volatility. This position is ideal for a developer who excels in high-bandwidth, in-person collaborative environments and is passionate about building ambitious systems from the ground up.

Key Responsibilities

AI Engineer - Pentesting Agent

Location: Preference for the UK or US

Remote | Full-time

Compensation: Competitive

Our client is the fastest-growing online cybersecurity training platform in the industry, currently serving more than 6 million users and over 1,000 global businesses, including government agencies and Fortune 500 organizations. With a significant initial investment, the organization is developing a fully autonomous AI pentesting agent designed to plan, exploit, adapt, and report with the speed and precision required for modern offensive security.

The team is seeking a talented AI Engineer to join a small, high-impact group dedicated to building this autonomous system from the ground up. This role is ideal for a deeply curious engineer with a passion for AI agents and a strong interest in the cybersecurity domain. The successful candidate will design the core logic of the system, shaping its reasoning, memory, and execution flows to handle complex offensive security tasks reliably.

Key Responsibilities

Tiger Analytics is looking for experienced GenAI Architect to join our fast-growing advanced analytics consulting firm. Our employees bring deep expertise in Machine Learning, Data Science, and AI. We are the trusted analytics partner for multiple Fortune 500 companies, enabling them to generate business value from data. Our business value and leadership has been recognized by various market research firms, including Forrester and Gartner.

We are looking for a hands-on Engineering Lead with deep expertise in Generative AI (GenAI), Large Language Models (LLM) / Small Language Models (SLM) who can lead the design, development, and integration of AI-powered components into real-world, production-grade applications. This role demands strong engineering leadership and best practices, a practical approach to application development and system design with applied AI, fluency in modern AI tools, frameworks, cloud-native application stacks, and preferably knowledge of healthcare domain intricacies. You will lead the technical delivery of AI-powered features for a variety of horizonal and vertical healthcare use cases— all while ensuring compliance with enterprise integration standards.

Requirements

Responsibilities

Staff Backend Engineer: High-Frequency Trading Systems

Location: Remote - Fully remote in Asia

Compensation: $70K - $80K

We are a high-growth fintech powerhouse operating at the intersection of Prediction Markets, AI, and Blockchain technology. With over $200M in annualized volume and a 100% weekly growth rate, we are rapidly redefining how decentralized markets operate. We are backed by world-class investors, including CMT Digital and AllianceDAO, the premier accelerator for the crypto and AI ecosystem.

We are seeking a Staff Backend Engineer to own and scale the low-latency, high-throughput systems that sit directly in our trade execution path. This is not a "standard" backend role; you will build performance-critical infrastructure where micro-optimizations, architectural correctness, and extreme reliability are the difference between success and failure. You will work in a high-stakes environment where your code manages real money and real volume every second.

Responsibilities

Join HSO and help shape the future of AI-driven cloud solutions. We believe technology should empower people and businesses to thrive. If you’re passionate about building innovative, ethical, and reliable AI solutions and enjoy leading projects and sharing knowledge we’d love to hear from you! 

About the Role 
As our AI Architect, you’ll design secure, scalable AI solutions, guide strategy, and work with customers and global teams. You’ll lead exciting projects, influence technology adoption, and help drive innovation at HSO. 

Key Responsibilities 

• Develop and implement enterprise AI strategies, frameworks, and governance. 

• Lead end-to-end delivery of AI solutions (migration, modelling, testing, deployment). 

• Design scalable AI systems and apply responsible AI practices. 

• Ensure privacy, security, and regulatory compliance. 

• Mentor technical teams and foster best practices. 

• Partner with customers to identify opportunities and enhance solutions. 

• Deliver workshops and share emerging technologies across teams. 

Requirements

Core Technical & Design Skills 

Senior Rust Engineer - On-Chain Security Infrastructure

Location: Remote - Europe

Compensation: $165K - $200K

We are building a Credible Layer—a step-level improvement for on-chain security designed to safeguard the crypto industry and restore credibility after billions were lost to hacks. We are creating an on-chain protocol and off-chain infrastructure that enables protocols to enforce security rules for every transaction. Backed by world-class investors, we are seeking a Senior Rust Engineer to work on bleeding-edge infrastructure at the heart of our mission.

You will play a crucial role in shipping cutting-edge features that extend the EVM (Ethereum Virtual Machine) to enable security rules to be checked after every state transition. This is a high-impact, deeply technical role requiring expertise in performance optimization and low-level systems programming within a collaborative, fast-iteration environment.

Key Responsibilities:

Tiger Analytics is looking for experienced Machine Learning Architect to join our fast-growing advanced analytics consulting firm. Our employees bring deep expertise in Machine Learning, Data Science, and AI. We are the trusted analytics partner for multiple Fortune 500 companies, enabling them to generate business value from data. Our business value and leadership has been recognized by various market research firms, including Forrester and Gartner.

We are looking for a hands-on Engineering Lead with deep expertise in Generative AI (GenAI), Large Language Models (LLM) / Small Language Models (SLM) who can lead the design, development, and integration of AI-powered components into real-world, production-grade applications. This role demands strong engineering leadership and best practices, a practical approach to application development and system design with applied AI, fluency in modern AI tools, frameworks, cloud-native application stacks, and preferably knowledge of healthcare domain intricacies. You will lead the technical delivery of AI-powered features for a variety of horizonal and vertical healthcare use cases— all while ensuring compliance with enterprise integration standards.

Requirements

Responsibilities

About Jobgether:

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

One of our companies is currently looking for a Sr. Software Engineer - Windows Driver in Canada.

In this role, you will design, build, and test low-level Windows drivers to support next-generation cybersecurity tools. You’ll work closely with a dynamic team of engineers to ensure high-performance, secure integration with Windows-based endpoints. This is a critical position for developing and maintaining cutting-edge detection capabilities and ensuring seamless deployment of endpoint protection software across enterprise environments. The ideal candidate is a seasoned engineer with deep expertise in Windows internals and a passion for solving complex security challenges.

Accountabilities:

About Jobgether

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

One of our companies is currently looking for a Senior Full Stack Engineer - Contractor in Poland.

As a Senior Full Stack Engineer, you will be responsible for building and enhancing user-facing features, driving technical innovation, and expanding the reach of applications across multiple platforms such as Web, Android, and Windows. You will work closely with product managers, designers, and engineers to deliver high-quality solutions that provide users with a seamless experience. This role offers an opportunity to work with cutting-edge technologies and be part of a passionate team that is transforming digital productivity and collaboration. You’ll contribute to the entire software development lifecycle, from design to deployment and optimization, working in a highly collaborative environment.

Accountabilities: