About Tradeify At Tradeify, we are building a high-performance trading ecosystem that empowers traders around the world with capital, technology, education, and community. We operate across futures and crypto markets and partner with platforms like NinjaTrader and Tradovate to deliver a best-in-class trading experience. As we continue scaling rapidly, technology sits at the center of everything we do. We are looking for a talented Backend Engineer who thrives in building the systems, services, …

At Lapel, we believe the most hospitable companies win. We're building the data, infrastructure, and tools that help customer-facing teams understand every customer and act on that insight at scale throughout the entire customer lifecycle. Most internet businesses want to treat customers well, but their tools work against them. We’re building the layer that makes every interaction feel personal again: unifying context, coordinating action, and closing the gap between intent and experience. It’s…

About the role We’re seeking a backend engineer to join our team, and are happy to consider applications of all levels. In this role, you’ll be instrumental in building our cloud security platform. As an engineer, you won’t just write code; you’ll also wear an entrepreneurial hat. You’ll collaborate closely with our leaders outside engineering, along with customers, partners, and investors, as we take our product from 0 → 1 → N. Bedrock Security is the latest investment of Greylock Partners. Gr…

We are looking for a Backend Engineer to take significant ownership in building Monte Carlo's cloud service, data pipelines and ML platform. The role will involve end-to-end development: from helping formulate requirements to full production implementation. You will be collaborating with a small team of seasoned engineers in a fast-moving startup environment. Series C company Founded: 2019 Funding: $101M Visa: Will transfer H1 Salary: $130k - $200k Job required skills: React, JavaScript, Python…

Job Title Backend Engineer Job Description Develop and maintain scalable backend systems to support financial services applications. Collaborate with cross-functional teams to ensure seamless integration with front-end systems. Write clean, efficient, and well-documented code following best practices. Optimize server-side performance to ensure high availability and reliability. Implement data security measures and ensure compliance with industry standards. Debug and resolve technical issues to …

Job Description Backend Software Engineer with strong C++ development experience and familiarity with real-time operating systems (RTOS) to support advanced counter-UAS (CUAS) systems. This role focuses on building high-performance backend components that interface with real-time systems, processing data and enabling reliable, mission-critical functionality. This is not an embedded-focused role, but prior exposure to RTOS concepts and environments is essential. We are a company committed to cre…

About Gallatin At Gallatin, we are rebuilding logistics infrastructure for the national security missions of the United States and allied partners. We build AI systems that determine how logistics decisions are made — not just how they're executed. From factory to foxhole, we operate at the layer where data becomes decisions, and decisions make the advantage. About the Role We’re seeking a Backend Software Engineer to build, maintain, and scale the core systems that support our AI-driven logist…

Location: New York, NY (fully onsite 5 days) Please note: We are unable to sponsor or take over sponsorship of employment visas at this time. Candidates must be authorized to work in the U.S. without current or future visa sponsorship. About Us: Autopilot is a next-gen trading app and registered investment advisor (RIA) that makes professional-style investing accessible to everyone. Users can autopilot the portfolios of politicians, public figures, and top investors, or create and launch their …

Full-time Description Spatial Front, Inc. (SFI) , a two-time USA Today Top Workplaces awardee and Washington Top Workplaces honoree, is seeking a Backend Developer to join our team. The ideal candidate will design and build scalable, secure server-side applications and services supporting Federal Government modernization programs. This role requires strong experience in backend programming, database design, and microservices architecture , along with the ability to develop reliable and high-per…

About the Role As one of the first backend engineers, you will own core services powering AI voice and browser agents deployed in live production environments. You will build reliable, low-latency systems that orchestrate agent workflows, integrate with healthcare systems and third-party portals, and maintain data security standards. You will work directly with founders and ship into customer environments regularly. What You'll Do Design and build core backend services and APIs that orchestrate…

Job Description About the role CelebriOS is seeking a Backend Developer to design and maintain the services, APIs and data systems behind its products. You will work with engineering and business stakeholders to deliver secure, scalable and observable systems. The ideal candidate combines strong programming fundamentals with practical judgment about reliability, performance and maintainability. Responsibilities Design, build and maintain backend services and APIs. Develop data models and work w…

ABOUT US: Skip is on a mission to make life joyful through powered movement. Movement is a powerful way to build physical, mental and social health. Yet it is elusive for 2 billion people due to age, injury, or disability. We are building products that will restore mobility for millions and enable a new frontier of joyful movement experiences. We want to build a future where a grandparent can easily outrun their grandkids and no one is left behind at the trailhead. Skip is a 22-person early-sta…

About Us The financial advisory industry is a $80T market in the US, but has seen little technological innovation compared to the self-service market (Robinhood, Betterment, Wealthfront, SoFi). Client data management is a universally painful and expensive problem for financial advisors. Today, advisors manually collect, update, and utilize client data across the 7-10 software tools that they use to run their business. Data transcription and translation across systems is time-consuming and error…

About the role Vurvey Labs is seeking an experienced, highly-skilled Backend Developer to join our growing engineering team. You will play a crucial role in designing, developing, and maintaining the core services and APIs that power our innovative platform. If you thrive in a fast-paced environment, possess deep expertise in scalable system architecture, and are passionate about delivering high-quality, performant, and reliable backend solutions, we want to hear from you. What you'll do Design…

Role As a Backend Engineer at Samaya, you will design and lead the development of critical system components that support and enable our AI product. This year we are set up for rapid growth to tens of thousands expert users who rely on Samaya daily. You will be critical in ensuring our system scales reliably while maintaining a high standard of internal engineering. Instant QA: Our custom-built Question Answer system uses state-of-the-art in-house models and retrieval systems, seamlessly traine…

About Arena Intelligence Arena is the platform for evaluating how AI models perform in the real world. Founded by researchers from UC Berkeley's SkyLab, we're on a mission to measure and advance the frontier of AI for real-world use, and to build the foundation for everyone to understand, shape, and benefit from it. Tens of millions of people use Arena each month to evaluate how frontier systems handle the work they actually do. The preferences they share power the most transparent, rigorous, a…

About yeet yeet is built by a tight-knit group of systems, observability, and kernel nerds who refuse to accept “mystery outages” as normal. We’re a small, high-impact team with domain expertise in Linux, eBPF, performance instrumentation, and developer tooling. We move fast, ship often, and take deep ownership. If you enjoy operating close to the metal, building tools that real engineers lean on during 3 AM incident sprints, and solving hard problems with minimal overhead, you’ll feel right at…

Coterie’s Backend Engineer will be instrumental to the creation of the infrastructure and systems that run our products and partner integrations. As a Backend Engineer, you'll work across the stack and will influence the tools we use, shape overall technology goals, and contribute to the development of your teammates. You’d be building out some of the most important parts of our platform. This key hire will also be expected to create documentation around Coterie’s backend system so additional h…

At GFiber, we believe that great internet has the power to drive innovation, strengthen communities, enable the impossible, and do all the everyday things that make all of our world go round. And the job of creating better internet is never done - so we’re growing! Our team is committed to building a place where people who want to make a difference can grow their careers and find their spot to belong. GFiber is an Alphabet company that brings Google Fiber and Google Fiber Webpass internet servi…

Backend Engineer San Francisco, CA Being a Backend Engineer at a company smaller than 10 people is special. You’ll have a ton of autonomy, be expected to own and build a significant part of the product, and design the product’s growth for the next set of engineers who will be joining us. You’ll wear many hats: developer, designer, product owner, mentor, architect, support engineer, and sales engineer. Our engineers are strongly opinionated people who want to continuously improve the product the…