27 startups hiring AI, full-stack and backend engineers
27 startups hiring AI/ML, full-stack, frontend, backend engineering roles — 16 Oct 2026
Engineer? Join 8x careersEach week we surface a handful of early‑stage companies that are actively hiring engineers, ranging from crypto‑finance simulation teams in Madrid to AI‑powered talent platforms in the United States and large‑scale infrastructure builders across Europe. Below you’ll find 27 startups—most under 50 engineers—looking for engineers in machine learning, full‑stack, backend, frontend, and specialized AI roles, ready to add new talent this week.
Build 0 → 1
Cenit Finance (acquired by Space and Time)
Machine Learning & Simulation Engineer
- Madrid, Community of Madrid, Spain
- Remote
They’re tackling the opaque side of crypto finance by building tokenomics models and risk‑management tools that let projects simulate economic outcomes before launch. The small Madrid‑based team (2‑10 people) is looking for a Machine Learning & Simulation Engineer to deepen those models and improve the underlying simulations.
Comply
Senior Full Stack Engineer
- United States
- Remote
Insurance compliance teams spend hours sifting through ads, filings and ever‑changing regulations; Comply cuts that friction with an end‑to‑end platform that automates ad reviews, consolidates filing workflows, maps regulatory changes to the right owners and distills bills into plain‑English briefs. The suite—AdSure, Filing360, RIA and CoBrief—serves life, health and P&C carriers as well as compliance consultants, delivering roughly an hour of saved work per user each day and keeping insurers audit‑ready. The small (2‑10 person) team is looking for a Senior Full Stack Engineer based in the United States.
Propertysuite
AI Developer
- United States
- Remote
Propertysuite has built a UAE‑focused marketplace that lets property investors book everything from Golden‑Visa processing to handover and management services, pulling pricing and transaction data from 1.3 million DLD records so users can compare and track work in real time. By giving agents a referral flow and service providers a verified client base, the platform stitches together the fragmented real‑estate ecosystem. The small team (2‑10) is looking for an AI Developer in the United States.
matcha.fm
Senior Frontend Software Engineer - Remote worldwide - up to $150k
- United States
- Remote
Job seekers are often drowned in noisy listings, so this tiny team has built a zero‑noise job‑matching service that turns a plain‑text prompt into a curated inbox of fresh, under‑the‑radar roles as soon as they go live. The product’s simplicity has resonated with users who value getting the right opportunities without endless scrolling. They’re looking for a senior frontend software engineer to help evolve the experience, working remotely with a small US‑based team.
Early team
MeeBoss
Senior Full Stack Engineer, Software Engineer
- United States
- Remote
Finding the right talent often stalls at the endless back‑and‑forth of email and generic listings, so MeeBoss has built a job‑matching platform that pairs candidates and companies through personalized recommendations and a built‑in two‑way chat, letting both sides assess fit and move forward without the usual noise. The 11‑to‑50‑person team is looking for a Senior Full Stack Engineer in the United States to help scale the product.
Jobster
Engineer radar en landingssystemen - Jobbird.com
- Nederland, Overijssel, Netherlands
- On-site
Jobster is building the world’s first predictive job advertising platform that uses AI‑driven matching, real‑time bidding and programmatic distribution to surface passive talent before they even start looking, letting employers reach both active and passive candidates across jobsites and beyond. The Dutch team of 11‑50 engineers is currently looking for an Engineer focused on radar and landing systems to help advance the platform’s core technology.
hussh 🤫
AI Engineer and Researcher, Founding Engineer, Core Systems
- United States
- Remote
People still hand over their most sensitive data to opaque cloud services, so hussh is creating private personal AI agents that keep your documents, email and calendar under your own control and even run on a home‑based “One Puppy” supercomputer you own. The team of 11‑50 is now looking for an AI Engineer and a Researcher to advance these personal super‑intelligence agents and the low‑cost, low‑watt super‑computing platform that powers them.
Reinforced Learning
Frontend Engineer, Review Tooling
- Buffalo-Niagara Falls Area
- On-site
Reinforced Learning, a team of 11‑50 in the Buffalo‑Niagara Falls area, is hiring a Frontend Engineer, Review Tooling.
Empion by Factorial
Full Stack Developer (m/w/d)
- Salzburg, Austria
- Hybrid
By quantifying company cultures and aligning them with candidates’ values, personality and skills, Empion’s AI‑driven matching platform helps firms find talent that truly fits both technically and culturally. The team of 11‑50 in Salzburg is now looking for a full‑stack developer to extend the product’s core capabilities.
CoffeeSpace
Founding Engineer, Frontend ($175K - $225K + Equity) Stock Market for Athletes
- United States
- On-site
Finding cofounders and early hires is a notorious bottleneck for fledgling startups, and CoffeeSpace tackles that with an AI‑driven talent matching platform that has already logged over 2.5 million swipes and more than 65 000 matches among its 30 000+ users. The San Francisco‑based team of 11‑50 is now looking for a founding engineer focused on frontend development, offering a compensation package in the $175K‑$225K range plus equity.
Clidrive
Senior AI Software Engineer
- Spain
- Remote
Facilitating a smoother, more trustworthy car market, Clidrive lets users buy, sell, and rent vehicles through a platform that offers certified cars, premium guarantees, flexible financing and a unique trial period. The 11‑50‑person team in Spain is looking for a Senior AI Software Engineer to advance the AI‑driven features that power these end‑to‑end transactions.
CIBOS Innovation
AI / LLM Engineer
- Athens, Attiki, Greece
- Hybrid
Disrupting the slow‑moving digital backbone of manufacturing, CIBOS builds Industry 4.0 platforms that turn sensor data into actionable workflows across sectors ranging from heavy industry to smart factories. Leveraging a deep R&D base from its ICCS roots, the Athens‑based team of 11‑50 engineers is now looking for an AI/LLM Engineer to advance the platform’s intelligent automation capabilities.
Timefold
Platform Backend Engineer
- Ghent Metropolitan Area
- Remote
Timefold tackles the growing pain of constraint‑heavy workforce management by offering an intelligent scheduling optimization platform that plugs into existing stacks via APIs, letting developers keep full control over constraints while delivering schedules that operations teams can understand and trust. The approach replaces brittle rule‑based systems with a transparent optimization layer, cutting delivery time and total cost of ownership as scheduling complexity scales. They are looking for a Platform Backend Engineer in the Ghent metropolitan area to join their 11‑50‑person team.
Exquance Software
Data Engineer – Data & AI Platform (PropTech)
- Helsinki, Uusimaa, Finland
- On-site
Real‑estate and private‑equity firms can now automate cash‑flow models, streamline fund reporting and tap live market data through Exquance’s suite of platforms—including ModelTree for portfolio modeling, Fundy for fund administration, and Exquance Insights for property‑market analytics. The Helsinki‑based team of 11‑50 engineers is looking for a Data Engineer to strengthen its Data & AI platform for the PropTech stack.
Nebulai
AI Pipeline Engineer
- United States
- Remote
Nebulai runs the world’s first Intelligent Solutions and Talent Marketplace, letting companies source verified human AI experts and deploy intelligent AI agents through a single platform. By stitching together talent and turnkey solutions, it helps businesses accelerate AI projects without building in‑house expertise. The team of 11‑50 engineers in the United States is looking for an AI Pipeline Engineer.
Kovo
Backend Engineer - senior hire
- United States
- Remote
Many Americans still lack reliable pathways to credit and basic financial services, a gap Kovo is closing with its financial empowerment platform that builds credit access and inclusion tools for people traditionally left out of the system. The company, a tight‑knit team of 11‑50, is looking for a senior backend engineer in the United States to help scale the core infrastructure behind those services.
Roark (YC W25)
Founding Software Engineer — Product
- United States
- Remote
Voice AI is exploding, yet reliability remains a stubborn hurdle, and Roark’s platform adds a QA layer that lets teams automatically monitor, evaluate, and simulate their agents with 40+ built‑in metrics, custom dashboards and persona‑driven test flows. By turning failed calls into repeatable tests, the system closes the loop between detection and improvement, and the team of 11‑50 engineers is now looking for a founding software engineer focused on product.
Playsaurus Inc.
LATAM - Game Developer with Javascript Experience
- Alameda, CA
- Remote
Idle games that reward players with steady, low‑effort progress have proven surprisingly sticky, and Playsaurus Inc., an indie studio out of Southern California since 2011, has built a catalog of titles around that loop. The team of roughly a dozen developers is now looking for a LATAM‑based game developer with JavaScript experience to expand its next release.
Orenda, Inc
Machine Learning Engineer
- New York, NY
- On-site
By turning the variability of renewable generation into a predictable resource, Orenda’s platform uses AI‑driven dispatch models to squeeze maximum value from battery assets while curbing early‑stage development risk. The New York‑based team of 11‑50 engineers is now looking for a Machine Learning Engineer to extend those optimization models and keep the storage fleet running efficiently.
Invert
Senior Software Engineer (North America)
- San Francisco, CA
- Remote
Bioprocess teams often drown in fragmented experiment data, making it hard to translate insights into scalable manufacturing milestones. Invert’s AI‑driven platform stitches together those data streams, structures them, and surfaces actionable signals so development and manufacturing groups can iterate faster. The company is looking for a senior software engineer in North America to join its 11‑50‑person team in San Francisco.
Euphoric
Software Engineer (Applied AI)
- United Kingdom
- Remote
Turning the tangle of global benefits contracts, costs and policies into a single, AI‑driven command center, Euphoric lets HR leaders see the whole picture in real time while giving employees a consumer‑grade portal to discover and claim their perks. The UK‑based team of 11‑50 is expanding its applied‑AI capability and is looking for a Software Engineer (Applied AI) to help advance the platform’s analytics and personalization features.
Scaling up
Bright Vision Technologies
Prompt Engineer, AI Pipeline Engineer, Staff Software Engineer
- South Plainfield, NJ
- Remote
By weaving AI, hybrid‑cloud and blockchain into a single talent‑intelligence suite, Bright Vision’s Lumina platform lets large enterprises automate candidate sourcing, semantic resume matching and workflow orchestration while guaranteeing tamper‑proof credential verification. The product, already deployed across AWS, Azure, GCP and OpenShift for firms in finance, healthcare and retail, is scaling its engineering core and is looking for Prompt Engineers, AI Pipeline Engineers and Staff Software Engineers to expand the team.
Simpleway Global
Full-stack senior developer (Java, Typescript) 🚀
- Prague, Prague, Czechia
- On-site
Complex venues like airports and hospitals need clear, multilingual announcements that work across legacy PA systems and modern digital signage, and Simpleway Global’s hardware‑neutral platform does exactly that—unifying voice, data feeds and display content for hubs such as Dubai International Airport and Prague Airport, serving over 200 million travelers a year. The team of 51‑200 engineers in Prague is looking for a senior full‑stack developer (Java, TypeScript) to extend this multilingual transport communication stack.
TetraMem - Accelerate The World
Application Engineer
- San Jose, CA
- On-site
TetraMem is pushing the frontier of AI hardware with analog accelerators that deliver high performance while slashing power draw, a combination that could reshape edge‑AI workloads and data‑center efficiency. The San Jose team of 51‑200 engineers is looking for an Application Engineer to help bring these ultra‑low‑power solutions to customers.
Edia
Senior Backend Engineer
- United States
- Remote
Across more than 300 districts—from bustling NYC classrooms to remote Alaskan schools reachable only by seaplane—Edia runs an AI‑powered platform that surfaces insights on math performance, attendance patterns and multi‑tiered systems of support, helping districts tailor interventions and lift student outcomes. The company, now staffed by 51‑200 engineers and educators, is looking for a senior backend engineer to strengthen the data pipelines and services that power those insights.
Nebul
Golang Backend Software Engineer
- Leiden, South Holland, Netherlands
- Hybrid
European firms looking for a truly sovereign AI stack can now run their workloads on a full‑stack cloud built to meet GDPR and the upcoming AI‑Act, with one‑click Kubernetes, managed databases and NVMe storage that lives entirely within the EU. Nebul’s platform also bundles a private AI factory—open‑source models like Llama and Mistral wrapped in secure APIs and governed by an AI observer—on top of GPU superclusters powered by NVIDIA Blackwell and Hopper chips. The team of 51‑200 engineers in Leiden is hiring a Golang Backend Software Engineer.
AppWork
Senior Full Stack Engineer
- Spain
- Remote
AppWork builds maintenance‑management software that streamlines workflows for everyone from headquarters and managers to technicians and residents, turning daily upkeep into data‑driven, motivating experiences. By embedding efficiency, empowerment and retention into each user interface, the platform helps operators keep assets running smoothly while preserving data integrity. They’re looking for a senior full‑stack engineer to join their 51‑200‑person team in Spain.