Software Engineer Jobs

Konvu is a security startup on a mission to make security invisible by automatically detecting, prioritizing, and remediating vulnerabilities in a future with AI-generated code. Founders have prior experience at Sqreen (YC W18), acquired by Datadog.…

Replica builds software and data to understand the built environment and ways people interact with it. With better data, human-context and an intuitive design, Replica helps public and private sector customers make informed, effective, and responsiv…

Beautiful.ai is a Series B SaaS B2B presentation software company (16M funding) hiring multiple full-time remote roles in the US and Canada, including engineering (platform and software; senior and staff levels) and an Account Executive role.

Tamarind Bio hosts AI drug discovery models for biotech/pharma researchers and is building infrastructure to power R&D, including molecular ML models like AlphaFold. Series A company (~2 years old) with rapid revenue growth and enterprise customers.…

Engineers at Prodia build the systems that make image + video generation fast, reliable, and easy for developers to use. This is a highly practical role: shipping models, features, and improvements that show up directly in latency, quality, and upti…

Nova Credit is building a unified platform for credit and financial data to power financial inclusion globally. YC-backed company with investors including Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures. Hiring software engine…

Clad is software for building physical infrastructure, helping contractors track their work and get paid faster. Small (5 person) in-person team based in NYC, raised $2.7M with >5 years of runway, ramping up to grow in 2026. Work involves building a…

NobodyWho is making developer tools for running small language models in local-first applications. Our core principle is to ship the model weights along with the application, and then do efficient inference locally and offline, on any device. We run…

We're hiring engineers across the stack at Opendoor. We're building technology to simplify residential real estate - making it easier to buy and sell homes. Our engineering challenges span everything from marketplace dynamics and pricing models to c…

Rinse provides dry cleaning and laundry delivery services to customers in twelve metropolitan areas in the US and Canada. The company has sophisticated logistics optimization software and a polished consumer product. The engineering team is distribu…

IPinfo is a provider of IP address data (geolocation, VPN and residential proxy detection, mobile carrier data, and other context tags). The company is a fast-growing, bootstrapped, globally distributed team (~60 people). They list open roles includ…

Architect recently raised a $35M Series A and is hiring multiple software engineering roles. As a key member of the team you will help build an advanced exchange — a centralized and regulated exchange for perpetual futures on traditional assets (FX,…

Redpanda is pioneering the Agentic Data Plane (ADP), a new AI infrastructure category that connects AI agents with enterprise data and systems. Built on a multi-modal data streaming engine, Redpanda enables agentic applications that reason and act i…

Hello, I am bootstrapping an AI companion startup. I believe that within 10 years, more people will date AI than humans. I think this is neither good nor bad, just interesting, and I want to build something in this space. I am looking to hire someon…

CCI | London, UK | on-site (4 days) | software engineers. Castleton Commodities is an energy fund with engineers in London, New York and Houston. In London we are a team of 3 covering various asset classes. We are hiring mid to senior software engin…

EQTY Lab is focused on emerging governance and security paradigms for AI infrastructure. Our primary focus is verifiable computing using cryptographic capabilities to identify and govern agent behavior. We're also focused on helping the industry adv…

Common Prefix is a blockchain research & development company focused on interoperability, scalability, and usability of blockchain systems. The team combines formal research with production-grade engineering, publishes in top-tier venues, and builds…

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users. The demand for trusted digital ID is accelerating as AI deepfakes begin to …

Freetrade is a commission-free investing app used by over 1 million people in the UK. Our team is expanding, and we’re seeking software engineers to evolve and scale our core investing platform. In this role, you will be instrumental in building and…

We're building an agent to manage single family rental properties across the United States. We currently manage ~4,000 homes, are growing quickly, and are looking for full stack, backend-leaning engineers who would love to contribute to a state of t…

Mission-driven company building AI solutions for healthcare to increase access to life-saving drugs. Profitable and growing, selling 7+ figure contracts to enterprise healthcare customers. Team includes YC & MIT alumni, ex-Tesla and ex-Google engine…

Northstar is a seed-stage cybersecurity startup building an agentic platform to help security teams understand and defend the complex environments they're responsible for. Our semantic layer integrates data from the fragmented security and IT tools …

MixRank (YC S11) is a fully-remote, profitable, employee-owned data startup processing petabytes of data monthly with customers including Google, Amazon, Facebook, Intel, and Adobe. They are hiring continuously for software engineering roles and des…

Hi, I'm Aileen over on the Talent side at SF Compute. We're a small, ~30 person team based in SF building the first real-time compute trading platform, aiming to revolutionize how startups and labs access GPU compute for training and serving large m…

Valis Insights is a small climate-tech B2B SaaS/HaaS startup based in Worcester, MA building material sampling, sorting analytics, and material monitoring web and hardware/computer-vision solutions for metals recycling companies. Seeking a full-time…

Vo to satellite and drone imagery is on the rise, while traditional image processing methods struggle to keep up. Our scalable AI platform enables custom model training on global features, providing real-time, on-demand geospatial insights with impr…

This is a 100% on-site position in our office located in San Diego, CA. We are Fabric8Labs, at the forefront of additive manufacturing, utilizing our proprietary electrochemical 3D printing technology. We aim to revolutionize the design and manufact…

Freetrade is a commission-free investing app used by over 1 million people in the UK. Our team is expanding, and we’re seeking software engineers to evolve and scale our core investing platform. In this role, you will be instrumental in building and…

Kyra Health is building solutions to improve healthcare quality and cost for employers, employees, and insurance companies. Role is remote (USA) and full-time. Responsibilities: research, plan, scope, and design solutions while navigating laws, regu…

Redpanda is pioneering the Agentic Data Plane (ADP), a new category in AI infrastructure that connects AI agents with enterprise data and systems. Built on a multi-modal data streaming engine, Redpanda enables agentic applications that reason and ac…

Paperless Post is hiring for multiple engineering roles on a hybrid or remote (US only) basis. The Engineering team builds and refines a consumer-facing product used by millions monthly; feature teams include engineers, product managers, QA, and pro…

Coder is an AI software development company focused on autonomous coding agents and human developer collaboration. They offer a self-hosted Cloud Development Environment (CDE) for secure, governed developer workspaces that improve productivity, redu…

Phoebe | Software Engineer | NYC (Chinatown/LES) | ONSITE Phoebe is building the coordination layer for in-home care — one of the largest and fastest-growing labor markets in the US. Think Sim City and 24/7 logistics. We are growing crazy fast. St…

telli (YC F24) - Berlin (on-site). Hiring for Founding Designer, Software Engineer, and other roles. Role pages: https://hi.telli.com/design, https://hi.telli.com/eng, https://hi.telli.com/join-us.

Common Prefix is a science-first blockchain consulting company hiring software engineers and auditors. Roles involve working on cryptography, consensus, and smart contract implementations; solving hard problems from first principles; learning and ap…

Zigment is a customer journey platform that builds AI agents for enterprises. Hiring onsite in Bangalore (Full-time) for roles including Software Engineer, Forward Deploy Engineer (Agent), Project Manager/Delivery Manager, Integration Engineer, and …

If you or a loved one has ever suffered from confusing/egregious medical bills or insurance communications, this is your chance to give the power back to others in a similar situation. Our mission is to demystify health insurance, healthcare and med…

Hightouch is the modern AI platform for marketing and growth teams. Their AI agents reimagine marketing workflows, allowing marketers to create content, plan campaigns, and execute strategies with transformational velocity and performance. The compa…

We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data i…

Second Nature is a resident experience platform serving 1,000+ property management companies, automating resident onboarding, credit-building, renters insurance, utilities, and other services. Company is fully remote within the US. Tech stack includ…

At Source, we aim to revolutionize developer data management for the open web. Our mission is to simplify data handling for edge devices, local-first software, and distributed infrastructures, allowing developers to unleash their creativity and buil…

Checkr (YC S14) is hiring across multiple roles, located in our San Francisco, Denver, and Santiago offices. Checkr builds people infrastructure for the future of work, designing a faster and fairer way to screen job seekers using modern technology …

Rinse is a dry cleaning and laundry delivery company operating in multiple US and Canadian metropolitan areas. The engineering team is distributed and primarily remote, with desks available in listed cities. Hiring a full-time Software Engineer (ope…

MixRank is a fully-remote, US-incorporated data startup (employee-owned, profitable) that processes petabytes of data monthly and serves enterprise customers. They hire globally and are continuously hiring generalist software engineers and junior so…

Formal is a VC-funded 5-person team building a new serverless computing stack using formal methods to create low-overhead OS interfaces and formally verified isolation without containers or VMs. They are hiring multiple remote, full-time positions f…

RhythmScience is a cardiac data management company turning complex healthcare data into actionable insights for providers and patients. Remote-first team building software that impacts cardiac patient care. Roles: Data Engineer — build and maintain …

Thunder Compute, YC S24 | https://www.thundercompute.com | In-person in San Francisco Hiring 4 full-time Software Engineers for low-level C++ systems work (HFT skillset), reporting to the CTO, team ex-Citadel, ex-Aquatic, ex-Bain We're a cloud provi…

Sphere Semi is applying AI techniques to automate the design of analog and mixed signal chips. Our techniques have been able to achieve state of the art PPA (power performance area) with relatively modest compute. We’re scaling up and that means we …

Brilliant is building world-class interactive learning experiences that combine challenging problems, compelling narratives, and delightful visual storytelling. We're hiring engineers and designers to help craft the next generation of interactive le…

Gatby is building a free electricity marketplace for consumers in deregulated states to shop for the best electricity plans. The company is expanding into the Northeast and rapidly scaling its development team. Hiring for Senior Software Engineer an…

Beautiful.ai — SaaS B2B presentation software (AI industry). Series B with $16M funding. Hiring multiple full-time, remote roles in the US and Canada.

Blackshark AI builds a scalable AI platform for satellite and drone imagery enabling custom model training on global features to deliver real-time geospatial insights. Founded in 2020 and backed by $35M Series A from investors including Microsoft M1…