Location:  Need to be able to work EST timezone.

Remote | Full-time

Compensation: $175K - $250K

We are hiring on behalf of our client who is developing a cutting-edge autonomous agent runtime focused on high-frequency financial environments. While current agents operate effectively as independent units, the next phase of evolution involves building a sophisticated intelligence layer where the entire fleet learns autonomously from real-time market outcomes.

The Staff AI Engineer will be responsible for moving beyond manual propagation of insights to a system where the fleet gets smarter with every trade. This is a high-stakes production role, not a research position. The feedback loop is immediate and measurable: the work produced either enhances agent profitability or it does not. The successful candidate will own the intelligence layer that turns thousands of daily trading decisions into compounding, autonomous growth.

Key Responsibilities:

Learning & Optimization

Senior Software Engineer (Solvers)

Location: CET +/- 4

Remote | Full-time

Compensation: $160K - $180K

Our client is a pioneering technology laboratory developing advanced intent-based infrastructure to enable seamless cross-chain interactions. By connecting AI, services, and financial applications, the organization designs intent-driven liquidity layers where smart contracts and decentralized agents interact in real-time. With a core focus on AI, cryptography, and decentralized finance (DeFi), the team is redefining the architecture of cross-chain execution.

The Senior Software Engineer (Solvers) will architect and guide the development of the Solver network—the critical infrastructure powering the ecosystem. This role involves leading engineering design, enhancing performance and reliability, and building the next generation of intent-powered execution frameworks.

Key Responsibilities

WHO WE ARE

We are Harbor Lab, an innovative B2B software startup that aims to bring new value to the Shipping community. Our vision is to completely reshape how Shipping Companies and Port Agents operate, provide transparency, and ensure efficiency for all involved parties. We add value to both sides by helping save time, cut costs and make informed decisions. 

Harbor Lab has also been recognized as one of the Best Workplaces in 2022 & 2023 by the Great Place to Work Institute. 

ABOUT THE ROLE

As a Frontend Engineer, you will be working as a member of a software developer team delivering new features, which are part of Harbor Lab’s Software-as-a-Service offering. Our cross-functional teams handle both front and back-end related tasks. Moreover, you will be writing automated tests, as well as investigating bugs and providing fixes. Collaborating with other engineers, product managers and designers will be part of your day-to-day work. You will also be participating in the team’s Sprint ceremonies. 

Our engineering team plays a pivotal role in the success of our company, and contributing to delivering high quality work on time is a key factor in achieving our goals. 

WHAT YOU WILL BE DOING

Trading Infrastructure Engineer

Location: New York (Office)

On-site | Full-time

Compensation: $200K - $250K

Our client is a high-growth fintech startup building a streamlined trading application designed to bridge the gap between complex on-chain assets and everyday users. The platform provides instant access to digital assets without the friction of external wallets or bridges, while offering advanced social trading features and institutional-grade execution data.

The engineering team is composed of high-caliber, crypto-native professionals with backgrounds from industry leaders such as dYdX, Uniswap, and OpenSea. Following a recent move to a spacious new office in Soho, the organization is looking for a Staff Trading Infrastructure Engineer to spearhead the evolution of their trading infrastructure. This role is focused on the technical frontier of transaction speed, MEV prevention, and liquidity routing.

Key Responsibilities

Location: Remote - Remote - Based In ET+2 / -3, NY Preferred

Remote | Full-time

Compensation: $170K - $220K

Our client is a venture-backed financial technology firm dedicated to transforming the global movement of money through stablecoin infrastructure. Backed by premier investors such as Paradigm and Dragonfly, the organization is building a full-service platform designed to make issuing, managing, and integrating digital dollars seamless for developers, fintechs, and institutional partners.

The team operates with the discipline of high-performance finance and the agility of a crypto-native startup. They are currently seeking a Senior Infrastructure Engineer to design and build an internal platform that empowers product teams to deploy software with confidence, reliability, and speed. This individual will bring a software engineering mindset to infrastructure by building reusable abstractions, internal services, and developer tooling that reduce cognitive load across the engineering organization.

This is a remote-friendly role with a preference for candidates who can maintain a majority overlap with Eastern Time (ET) business hours.

Key Responsibilities

Location: Candidates based in Hong Kong or Singapore

Remote | Full-time

Compensation: $160K - $240K

We are hiring on behalf of our client who is seeking a Principal Software Engineer based in Hong Kong or Singapore to spearhead the design and evolution of core backend systems. This role is instrumental in driving the architecture of services powering wallet operations, transaction processing, and multi-blockchain integrations.

The successful candidate will lead efforts to ensure systems remains fast, reliable, and secure while scaling across global financial markets. Beyond technical implementation, this individual will guide architectural decisions, elevate engineering standards, and mentor senior engineers. The role involves close collaboration with product, security, and leadership teams to align technical execution with company priorities, ensuring infrastructure performs optimally under real-world financial workloads.

Key Responsibilities

AscendEx is a well-recognized global cryptocurrency trading platform. Currently, we are looking for a mid/senior backend developer to join our global team and build out the high-performance, low latency, robust, and scalable core trading system.

Responsibilities:

- Review designs, document technical specifications, and provide time estimates for implementing features/fixes.

- Write high-performance, reusable, modular code along with automated tests.

- Maintain a close working relationship with a geographically distributed development team in an evolving agile environment.

- Follow common design patterns, architectural practices and development methodologies.

- Identify and resolve performance issues to optimize for speed.

Requirements

- 5-12 years of professional work experience in a software development organization.

- 7+ years of professional work experience with Scala, Java, or Go.

- Experience designing and coding large distributed systems with high throughput.

- Demonstrated ability to deliver high-quality software in a fast-paced environment with iterative deadlines.

- A dedicated team player with excellent verbal and written communication skills.

- Able to read, write, and speak fluent English. Mandarin-speaking is a bonus.

- Bachelor's degree in computer science, software engineering or related major.

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.

About the Role

We're looking for a Product Manager to lead the planning, execution, and evolution of key product streams across our platform. This role is ideal for someone who can balance product thinking, delivery discipline, stakeholder management, and commercial awareness.

Key Responsibilities

Senior Web3 Software Engineer

Location: Europe/US/Latam

Remote | Full-time

Compensation: $170K - $195K

Our client is a pioneer in the blockchain sector, developing a high-performance operating system designed to redefine scalability and throughput for Ethereum. By combining parallel transaction execution with advanced state minimization, our client’s platform overcomes traditional protocol limitations to provide a groundbreaking environment for decentralized development.

Since its initial launch in 2019, the organization has remained dedicated to enhancing Ethereum's ecosystem through technical innovation, including the creation of a bespoke virtual machine and a specialized programming language. The team is a globally dispersed group of innovators committed to shaping the future of blockchain technology through secure, decentralized, and high-throughput solutions.

Our client is seeking a Senior Web3 Software Engineer to lead the development of high-performance decentralized applications (dapps). This individual will own major product surfaces end-to-end—from frontend interfaces to on-chain integrations—collaborating across product, design, and smart contract teams to deliver secure and intuitive experiences for traders and users.

Key Responsibilities

About LawnStarter

LawnStarter is the nation's leading on-demand marketplace for lawn care and outdoor services, with $100M+ in annual bookings across three brands. We connect homeowners with vetted local Pros for everything from weekly mowing to landscaping, pool care, and beyond.

The Role

The Sr. Automation Engineer in Austin, Texas will serve in a hands-on role responsible for the evaluation and testing of the LawnStarter platform. As a key player in the Company's Engineering operations reporting to LawnStarter’s Engineering Manager and indirectly to the Head of Engineering. The Sr. Automation Engineer will collaborate with software developers and engineers (majority based in Brazil) and cross-functional teams to design, develop, and deploy automated solutions for various processes and systems, utilizing industry-leading automation technologies. Telecommuting permitted from anywhere within continental U.S.

Job Duties

More specifically, the duties of Sr. Automation Engineer at LawnStarter will include: