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.

Senior Backend Engineer

Location: San Francisco, CA (Near Powell BART)

Employment Type: Full-time

Work Arrangement: Hybrid (3 days/week in-person in SF)

About the Role

Our client, is building the "world's sell anything platform," enabling entrepreneurs and marketing teams to instantly build, test, and grow online businesses and campaigns. Think of them as the GTM (Go-to-Market) platform for entrepreneurs, with customers including major brands (like Tums). The company has raised over $8.4 million from investors like Figma, YCombinator, and Vercel, and has achieved Series A/B metrics on a seed-stage cap table.

They are hiring a Senior Backend Engineer to take on key technical ownership, focusing on the system architecture behind their most popular, high-scale products. This role requires deep expertise in distributed systems and a passion for engineering excellence in a fast-paced environment.

Things You'll Be Working On

Senior Infrastructure Software Engineer (Medical AI Platform)

Location: Miami, Florida Employment Type: Full-time Work Arrangement: Hybrid (In the new Miami, FL office)

About the Role

Our client is the world's leading AI medical information platform, valued at $1 billion and backed by investors including Sequoia Capital and the Mayo Clinic. Their platform is used by healthcare providers worldwide to deliver accurate, sourced, and cited answers from peer-reviewed medical literature at the point of care.

They are seeking a Senior Infrastructure Software Engineer to join the Core Engineering team. This is a mission-critical role with significant technical scope and direct patient impact. You will architect and scale the entire infrastructure ecosystem, handling sensitive medical data at scale while ensuring the platform is both highly innovative and extremely reliable.

Responsibilities

Founding Engineer (API Infrastructure, Insurance FinTech)

Location: San Francisco, CA

Employment Type: Full-time

Work Arrangement: On-site

About the Role

Our client is a venture-backed startup with enormous momentum, building the infrastructure layer for Property & Casualty (P&C) insurance. They are often described as "Plaid for Insurance," aiming to modernize the highly fragmented, analog, and manual workflows of the $2T global P&C industry through a simple, modern API. The company has already grown revenue 3x year-to-date in 2025.

They are seeking two highly autonomous engineers (employee #5 and #6) to play a foundational role. This position involves owning the design and implementation of a robust, API-driven product and helping define the future architecture and company culture.

Responsibilities

AHOY is seeking a talented Senior iOS Engineer to join our dynamic team. In this role, you will leverage your expertise to architect and build high-quality iOS applications that provide exceptional experiences for users. You will work closely with cross-functional teams, including UI/UX designers and backend engineers, to deliver innovative and user-friendly solutions.

Key Responsibilities:

• Develop and maintain robust, scalable iOS applications using Swift.
• Collaborate with product and design teams to create feature-rich applications.
• Optimize applications for maximum speed and scalability.
• Conduct code reviews and mentor junior developers to foster a culture of learning and collaboration.
• Stay up to date with the latest iOS developments and technologies.

Requirements

• Bachelor's degree in Computer Science or related field.
• 5+ years of experience in iOS development with a strong command of Swift.
• Proven experience in publishing and maintaining apps in the App Store.
• Excellent understanding of Apple's design principles and interface guidelines.
• Familiarity with RESTful APIs and JSON.
• Strong communication skills and ability to work in a collaborative environment.

Benefits

Market Competive Salary

Leaves

Health Insurance

Hybrid Work Model

Full Stack Engineer (Frontend-Leaning, Cloud Infrastructure)

Location: NYC

Employment Type: Full-time

Work Arrangement: On-site 5 days/week

About the Role

Our client, a high-growth cloud infrastructure company backed by $13.5 million from Google Ventures, is on a mission to build a dedicated CI (Continuous Integration) cloud. They provide cloud infrastructure to help companies run their GitHub Actions substantially faster and cheaper, orchestrating millions of VMs each month over their own fleet of bare metal hardware. They've achieved $3M ARR with a small team and are growing extremely fast.

They are looking for a Full Stack Engineer who is strongly frontend-leaning (50-90% focus) but comfortable working on the backend. This high-impact role involves working closely with design to build the polished, high-performance UIs that manage complex infrastructure.

What You'll Do

Founding Software Engineer

Location: Los Angeles, CA (Sawtelle)

Employment Type: Full-time

Work Arrangement: Hybrid (On-site with remote flexibility on Fridays)

About the Role

Our client is an early-stage AI company with $6 million in seed funding, building the future of customer research. Their platform uses AI agents to create studies, conduct interviews, and extract meaningful insights, enabling teams to understand their customers faster than traditional methods. The founding team consists of product and technical leaders from Reddit, Twitter, and Nextdoor, emphasizing a strong "product-first" philosophy.

They are seeking a Founding Software Engineer to take on significant product ownership. This is a high-agency, full-stack role where you'll contribute to product definition, engineering, and company culture from the ground up.

What You'll Do

About Signal Ocean: Signal Ocean is the technology arm of the Signal Group. Our primary product, The Signal Ocean Platform, helps shipping and commodities professionals navigate their complex decision making. Driven by advanced machine learning and artificial intelligence, our technology suite provides tailored, exclusive insights that support our clients in achieving performance and efficiency. By securely handling and combining private and public shipping data flows, and applying advanced analytics, insights are delivered over web and mobile applications, as well as through a rich set of APIs and SDKs. Our backend architecture is abstracted to modularly offer deep analytics capabilities that are leveraged in the solutions that we offer or can be directly embedded in our client’s system topologies.

About the role:  We are looking for a motivated and detail-oriented Associate Product Manager to join our Vessels API squad in Athens. This is a hands-on role working with one of the largest vessel datasets in the industry - over 50,000 Tanker, Dry, LNG, and LPG vessels, each with more than 100 key particulars ranging from dimensions and cargo-handling equipment to ownership and sanctions.

Founding Engineer

Location: San Francisco, CA (Union Square area)

Employment Type: Full-time

Work Arrangement: On-site

About the Role

Our client, is an applied AI research lab building high-fidelity agent environments and tooling with the bold thesis of becoming the single global workforce supplier of AI employees for the entire global economy. They are currently focused on conquering the frontiers of planning, memory, and "always-on-behavior" for their agents.

As a Founding Engineer, you will have a high-agency role, working directly with the CEO and founding team. Your contributions will go beyond just code, actively shaping the product, culture, and architecture. You must be prepared to ship fast, experiment, and iterate without heavy process.

What You'll Do

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: