Software Engineer, Backend
Sciforium
Sciforium is an AI infrastructure company developing next-generation multimodal AI models and a proprietary, high-efficiency serving platform. Backed by multi-million-dollar funding and direct sponsorship from AMD with hands‑on support from AMD engineers the team is scaling rapidly to build the full stack powering frontier AI models and real‑time applications. About the role This role offers a unique opportunity to work on the core systems that power Sciforium’s multimodal AI models. You’ll help build the model serving platform working across C++, Python, runtime execution, and distributed infrastructure to create a fast, reliable engine for real‑time AI applications. You’ll gain hands‑on experience with performance engineering, learn how large AI models are optimized and deployed at scale, and collaborate closely with ML researchers and experienced systems engineers. If you enjoy low‑level programming, care deeply about performance, and want exposure to the full AI stack, this role provides both high‑impact work and strong growth potential. What you'll do Build the model serving platform, including API, Control Plane, Billing, Monitoring, and distributed inference features. Collaborate with ML researchers to integrate new multimodal models into production workflows. Write reliable, maintainable code with strong testing and documentation practices. Provide operational support for keeping our production services highly performant, available and reliable. Help troubleshoot complex issues across runtime, service, and GPU layers, working closely with other engineers. Ideal candidate profile Bachelor’s degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience). 3+ years of software engineering experience, with a focus on infrastructure or machine learning systems. Strong proficiency in C++, Python, Go, or Rust. Experience with Kubernetes, Containerization. Experience in building large scale ML/MLOps infrastructure. Strong collaboration and communication skills, with the ability to work effectively across engineering and ML teams. Comfortable working from the office and contributing to a fast‑moving, high‑ownership team culture. Nice-to-have Experience with ML systems engineering, open source inference engine like vLLM, Sglang, or TRT-LLM. Proficiency in CUDA or ROCm and experience with GPU profiling tools. Contributions to open-source ML or HPC infrastructure. Benefits include Medical, dental, and vision insurance. 401k plan. Daily lunch, snacks, and beverages. Flexible time off. Competitive salary and equity. Equal opportunity Sciforium is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status. #J-18808-Ljbffr Sciforium
$180k - $220k
...by David Sacks and Evan Owen, Glue is redefining how teams communicate and get work done in the AI era. We’re looking for a backend engineer to join our small team and help lead the effort to prepare the product for launch. Our technical foundation -- Golang, GraphQL...SuggestedWork at officeLocal areaImmediate startFlexible hours- ...to join a company at an inflection point and help shape what it becomes. Role Overview We are looking for a Software Engineer or Senior Software Engineer (Backend) to join our core engineering team in San Francisco. You will work on the systems that sit at the heart of...SuggestedWork at officeMonday to Friday
$161k - $230k
...Software Engineer: Backend at Thatch Location: Remote (US); San Francisco, California, United States Compensation: $161,000 - $230,000 USD About the role Thatch is building a healthcare system people actually love. We give companies a smarter, more personal way to offer...SuggestedRemote work- ...movement and access to financial data simple and secure. As a Software Engineer, you will design and build the systems that power how... ...their finances. You will work across the stack, from reliable backend services and APIs to intuitive applications that bring those...SuggestedWork experience placementInternshipLocal area
- ...is by providing them with above-market-rate compensation, premier benefits, and generous stock options. We're looking for a Backend Engineer with experience building high-performance micro-services and APIs. This is the job for someone that cares about building large...SuggestedRemote workFlexible hours
$105k - $125k
...teaming, model evaluations, and intelligence collection enable engineering, safety, and security teams to stay ahead of evolving threats... ...Responsibilities Design and implement highly reliable, distributed, backend services and APIs that are secure, scalable, and maintainable,...Remote work$130k - $155k
...improve maternal and child health outcomes. About You: As a backend engineer with Delfina, you will have the opportunity to contribute to... ...testing and debugging to ensure the delivery of high-quality software. Stay updated with the latest trends and advancements in software...Full timeFlexible hours$166k - $225k
...deep data insights to improve their business. Founded by engineers — and customer obsessed — we leap at every opportunity... ...virtual machines. And we're only getting started. As a software engineer with a backend focus, you will work with your team to build infrastructure...For contractorsLocal areaWorldwideFlexible hours- ...healthcare AI company The Role We're seeking an experienced Senior Backend Engineer who is motivated to meaningfully improve the way healthcare... ..., Tusk What we’re looking for: 5+ years experience building software applications Prior experience leading engineering teams as a...Work at officeRemote workHome officeFlexible hours2 days per week3 days per week
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- ...Learn more about our vision in our manifesto. Role Overview We are looking for a versatile and highly skilled Senior Backend Software Engineer to join our team. This person will own meaningful parts of the product and infrastructure end-to-end. We're looking for...WorldwideShift work
- ...to completion. You should be excited by the prospect of owning a large part of our engineering system, and continuously looking for more responsibility to take on. Being a backend engineer at Triumph is both demanding and rewarding, and your scope will cover (but...
$250k - $300k
...talent firm that focuses on placing the best product managers, software, and hardware talent at innovative companies. Our team is 10... ...to help them hire. Title of Role: Senior Software Engineer, Backend (Infrastructure) Location: San Francisco, CA (FiDi) Company...Work at officeRemote work- ...that significantly outperforms individual engineers. We combine language models with human ingenuity to push the boundaries of software development efficiency and quality. Role... .... You'll help architect and build core backend systems - the infrastructure that powers...
- ...clinical workflows every week. We are now looking for a Senior Backend Engineer to scale the core services that power our platform and build... ...challenges, work with production LLMs , and build software that directly improves patient care, we would love to talk. What...Remote workFlexible hours
$29 per hour
...Software Engineer- Backend Intern (Fall 2026) Astranis builds advanced satellites for high orbits, expanding humanity's reach into the solar system. Today, Astranis satellites provide dedicated, secure networks to highly-sophisticated customers across the globe—large...Hourly payPermanent employmentInternship$152k - $190k
...banking with intuitive spend management, bill pay, and travel software, Brex enables founders and finance teams to accelerate operations... ..., resources, and support you need to grow your career. Engineering at Brex Engineering at Brex is about building systems that...Work at officeRemote workWork from home$125k - $195k
...building a small team of exceptional, hands-on engineers to make this happen. Mechanical,... ...years. About the Team The Fab Software team builds the product that runs our... .... The work on this team spans frontend, backend, and data, all focused on making the fab...Work at officeVisa sponsorshipNight shift$200k - $220k
...narrowing down high-level problems into engineering solutions. You're able to coordinate... ...You'll Bring ~7+ years of relevant backend development experience in a start-up environment... .... ~ Technical understanding of the software development process. ~ Excellent...Full timeWork at officeRemote work2 days per week$165k - $260k
...Cardless is looking for an experienced backend engineer to join our exceptional team! You'll play a key role in designing, building, and scaling... ..., accounts, transactions, fraud, risk, and rewards. As a software engineer, your responsibilities will include but not be...Work at officeRelocation packageFlexible hours$150k - $350k
...Partner at Y Combinator and founder of Lever. Our AI researchers, engineers, and designers have worked at Google, Nvidia, Meta, Netflix,... ...to execute at scale. About the Role We're looking for a Backend Engineer to design and scale the systems that power Collate's...Immediate start- ...five days a week in our new San Francisco headquarters. About the Role As a Software Engineer at Mercor, you'll join a small, product-driven engineering team building modern backend systems that power critical workflows for some of the most advanced AI companies...Work at officeRelocation package
- ...a top 50 AI app in a16z list: ~#4 on Brex's Fast-Growing Software Vendors of 2025: ~ We're also one of the top ranking startups... ...~ Enterprise tech 30: ABOUT THE ROLE As a Senior Backend Engineer, you'll shape the core systems powering millions of AI-driven...H1bWork at office
- ...Backend Developer Responsibilities Design, implement or improve features in a variety of backend systems including our REST... ...backend systems by suggesting and executing improvements Improve engineering standards, tooling, processes and security Practice test-...
- ...legacy systems with adaptive, learning software. Founded in early 2024, Serval is already... ...across IT, HR, Finance, Security, Legal, and Engineering. Our mission is to eliminate... ...Overview As a Senior Software Engineer, Backend at Serval, you will play a pivotal role...
$170k - $240k
...Senior Software Engineer - Backend San Francisco, CA About the Role Sigma is transforming how businesses run by delivering a high performance platform on the modern data architecture. Hence, we are growing the engineering team and looking for engineers who are...Full timeWork at officeFlexible hours
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