Harmony AI | Chattanooga, TN + deployed at customer sites | Full-time | ONSITE/Deployed

The AI operating system for American manufacturing — an AI layer that runs your plant on real-time data, connecting machines, software, paperwork, and tribal knowledge. We embed on factory floors. Many roles are deployed: you relocate to a plant and ship inside the environment it runs in. High ownership, high equity, founder-led.

Stack: Python, TS, React, Postgres, Docker/K8s, Terraform.

Hiring: Full-Stack Engineers (US & Mexico), Backend Engineer, Founding Designer, AI Researcher, SDR, Head of Sales & Partnerships, and Head of Robotics.

All roles: https://www.tryharmony.ai/careers

SEEKING WORK | Poland / EU | Remote CET | Senior Full Stack Developer

Senior Full Stack Developer / Team Lead with 10+ years of experience. Stack: React, TypeScript, Python, Django, Node.js, PostgreSQL, Docker/Kubernetes, Azure. Strong in SaaS platforms, APIs, dashboards, admin panels, production debugging, integrations and delivery ownership.

Available for: short-term contract, part-time, full-time B2B, project rescue, production support. Can start immediately.

LinkedIn: https://www.linkedin.com/in/dmitriy-kostenko/ CV: https://drive.google.com/file/d/1l8AIB9WLnBy4R1RnBTnGLax1diP... Email: dmitriy.finswim@gmail.com

Cardog | Toronto, ON | Remote (Canada) | Full-time AI-powered automotive platform — we're building the infrastructure layer for vehicle data, from VIN decoding to market intelligence.

Looking for: Automotive experience, Full-Stack, AI/ML, Data Engineers

Stack: React Native/Expo, Next.js, Hono, Cloudflare Workers, PostgreSQL, TypeScript everywhere

https://cardog.app/careers

Carma (YC W24) | Founding Head of Engineering, Founding Full-Stack Engineer | San Francisco, CA | ONSITE | $175K–$450K + 2.0%–5.0% equity

Carma (https://www.joincarma.com/) is an AI-native operating system for enterprise fleet operations. Fortune 500 construction, electrical, and disaster restoration fleets run thousands of commercial vehicles on our platform in production today. When a truck breaks down, gets recalled, or sits idle, our software detects it, builds the workflow, and drives it to resolution automatically. Ship a feature in the morning; a fleet manager in the field is using it within the hour.

Why it's technically interesting: real-world software with messy, adversarial data — telematics streams, OEM recall feeds, vendor invoices, DOT compliance — fused into workflows that AI agents execute. The incumbents in this multi-billion-dollar market ship on decade-old stacks. We raised a $5.5M seed from Y Combinator, Soma Capital, and the founders of Superhuman, and we're driving toward a Series A.

Stack: TypeScript end-to-end — React, NestJS, PostgreSQL + Prisma, AWS.

Two founding roles, both heavy on ownership:

1) Founding Head of Engineering: $300K–$450K + 3–5% equity. Hands-on technical leader: the majority of your time writing production code, plus owning architecture, standards, and technical direction. Explicitly not a people-management track.

2) Founding Full-Stack Engineer: $175K–$275K + 2–3% equity. Own product surfaces end-to-end: ambiguous problem statement → scoped design → shipped to enterprise users.

Onsite in SF six days a week, early-stage pace, high ownership and high expectations. Our process is fast, strong candidates go from first conversation to offer in days, not months.

Email suleyman@joincarma.com with 2–3 lines on the hardest system you've shipped end-to-end. We reply to every thoughtful email within 24 hours.

UpMetrics | Full Stack Software Engineer | Hybrid (Sacramento, CA) | Full Time | $145k-$170k

Looking for a Sacramento/Bay Area full stack engineer to join our team here at UpMetrics! This role is primarily remote with occasional meetups (1-2x/month) in Sacramento with our Director of Engineering.

UpMetrics provides an impact reporting platform and expert services designed to help mission-driven organizations and funders leverage data to accelerate social change. By combining innovative technology with community building, we empower partners to collect insights, secure capital, and share compelling stories to achieve their goals.

Stack: Ruby (flexible if you know Python), JavaScript/TypeScript, Vue (or React, Svelte)

Looking for: 6+ YOE, startup experience

Check out the full job description & apply here: https://jobs.lever.co/UpMetrics/62b78791-e881-44c7-bf21-c82b...

(Applicants must be authorized to work in the United States. UpMetrics is unable to sponsor or take over sponsorship of employment visas at this time.)

Vestwell | Staff Software Engineer | HYBRID - NYC, New York; Scottsdale, AZ; Austin, TX; King of Prussia, PA | https://job-boards.greenhouse.io/vestwell/jobs/7734017003 | $185K - $200K base + bonus & equity

I'm the hiring manager for this role, which is for an IC tech lead. Please see the full job description for details, but I'm looking for someone who is comfortable leading engineering discovery and working with Product on roadmap planning within the API payroll integrations space. The most important thing in this role will be driving your own pace and taking projects from inception to completion. A successful candidate will be good at working efficiently without many hard deadlines or micromanagement. We also want someone who has strong systems design experience and good technical leadership skills. In terms of tech stack, it's mostly Python and Typescript, including nest.js

Our interview process is pretty straightforward. There's a phone screen with our recruiter, then a culture fit/qualifying interview with my boss, a technical interview with a real-world problem (no leetcode), and finally a cross-functional team interview with myself and another engineering leader at my company. We move pretty quickly and aim to keep the process respectful of everyone's time. Happy to answer any questions here! If you'd like to apply, please email recruiting [at] vestwell [dot] com with your resume.

Babou | Full Stack Software Engineer | REMOTE | Full-time

Babou turns your product into marketing: every time you ship, it watches your deploys, designs, and docs and builds the campaign (ads, demos, social, launch videos). Small team with users and real revenue.

Stack: TypeScript everywhere, Next.js front, Node + Postgres back, heavy media job processing, and a lot of AI agents running in production.

Looking for: agents are how you ship code, and you know when an LLM is wrong. You move fast without shipping slop. You've built large production systems and kept them running.

Apply: email careers@babou.ai with your GitHub, a writeup of something you've shipped, and how you work with agents day to day. https://babou.ai/careers

Prolific Machines | Senior Software Platform Engineer | On-site mostly (Emeryville, CA) | Full-time | $160k–$210k + equity

We use light to control how living cells produce therapeutic proteins — optogenetic cell engineering, custom illumination hardware, and real-time ML bioprocess control — to drive down cost and scale up production of next-generation therapies.

With our technology scaling from the lab to the real world of biomanufacturing, we're now hiring a foundational software engineer to build the platform tying together our hardware, firmware, cloud, and internal tooling — high ownership over architecture and direction. This is a systems role across the hardware/software boundary (not web/SaaS), working directly with embedded, mechanical, data, and even bioprocess engineers.

Looking for: strong systems thinking; Python + one of TS/Go/Rust; cloud-connected services; comfort interfacing and debugging software against hardware (serial, TCP/IP); Linux. MS + 5 yrs or BS + 7 yrs. Bonus: Industrial IoT (MQTT Sparkplug B, OPC UA, SCADA/MES), regulated-industry data integrity (21 CFR Part 11, GAMP 5), or embedded C/C++.

Apply: https://jobs.lever.co/prolific-machines/6d71f9d0-7248-4449-8...

Happy to answer questions: matt dot fay at prolific dash machines dot com.

Karhuno Group / https://DearHiringManager.io | Full-Stack Developer | REMOTE (US only) | Full-time

DearHiringManager.io is an early-stage SaaS product that helps job seekers find the real decision-maker behind a job opening.

A user pastes a job post URL, and the system identifies the likely future manager or team lead, plus their work email and LinkedIn profile.

We are looking for a full-stack developer to help us improve and grow the product.

You will work on: * The web app * Job post parsing and company data * Logic for identifying likely decision-makers * Contact enrichment API integrations * AI prompts and structured outputs * User flows, credits, payments, saved results, and reliability

Stack/experience: * JavaScript or TypeScript * React, Next.js, or similar * Backend APIs and databases * Third-party API integrations * SaaS basics: auth, payments, limits * Nice to have: OpenAI APIs, Supabase, Vercel, Stripe, Resend, scraping/enrichment tools, recruiting or job board products

This is a hands-on role on a live early-stage product with real users. You will work directly with the founder and have a lot of ownership.

Apply: lars@dearhiringmanager.io

Please send a short note about yourself and links to things you have built.

Felt Clinic (https://feltclinic.com) | Web Engineer | Remote (US Only) | Full-time | $180k-$200k

Felt Clinic is building the first embedded care SDK for health apps. Our mission is to make access to a doctor simple and secure inside any mobile application. We want teams to stop worrying about provider contracting and focus on building awesome experiences. We're looking for a NextJS Engineer to help us scale our platform. You’ll be developing powerful SDKs and APIs, integrating real-time communication tools, and shaping next-generation digital health experiences.

Tech Stack:

- Mobile: SwiftUI (iOS), Kotlin (Android), Ionic

- Web: Next.js, Turborepo, TypeScript

- Communication: WebRTC

What sets exceptional candidates apart:

- Hands-on experience working on mobile platforms (Swift/Kotlin)

- Expert with Next.js and RSC

- Stoked about healthcare experiences

- Deep expertise in full-stack product development

Felt has three name-brand Apps actively using our SDKs and anticipating approximately $10m ARR by late 2026. We’re backed by leading investors including 1984, Scrum Ventures, and Tau Ventures. Join us as we scale to build next-gen HealthKit on steroids.

Quin | Founding Engineer (CTO for the right person) | REMOTE (US), preference for Bay Area (tech), Chicago (consumer), or NYC (finance) | Full-time

Quin is an agentic platform to (finally!) solve personal finance for people. It is a consumer-focused company.

https://iamquin.ai

I spent 13 years in private banking and have been working on Quin alone for about 15 months. I built 6 different prototypes to test different approaches. I've spent the last few weeks working with testers on the latest version and solidifying GTM. I need someone to take over engineering with a focus on building the backend and data layers that will support our agentic approach to personal finance.

Georgetown. UCLA (MBA). Ex-JPMorgan.

Traction: Prototype with testers

The role: You're the first engineering hire. This is about shipping the workflows that will become the product that users will trust and the data layer that can support an agent in the future.

You'll own backend architecture decisions from day one. Contract-first development (TypeScript contracts repo as source of truth), FastAPI, Supabase/Postgres, Groq for LLM inference. The stack is clean and the codebase is small.

Who I'm looking for: A full-stack engineer with a preference for backend. 5+ years backend engineering; Python / FastAPI preferred. Strong data modeling instincts — you've designed schemas that had to scale. Experience with multi-tenant data architectures. Comfort operating without process. Finance domain familiarity a plus, not a requirement. Comfort and experience using AI tools and incorporating new ideas quickly.

For the right person, this is an opportunity to take a CTO/co-founder role and define the full technical path.

Comp: Salary post-raise and meaningful equity. TBH, finding this role (either version) will be important for rasisng capital given that I do not have a technical background and fintech is complicated by regulations. I'm ok with part-time in the meantime if that's what it requires.

Email quin@iamquin.ai with the primary reason this interests you and the top two reasons why you should be considered (don't worry about a resume at this point).

Memora | Founding Engineer | REMOTE (EU, 4h overlap with CET) | Full-time | Senior IC salary + meaningful founding equity

We're a 5-person startup building software for cemetery & public-records management: municipalities managing data for real families. Broad, hands-on IC role with real product and infra ownership.

Stack: NestJS/TypeScript, PostgreSQL + PostGIS, MikroORM, Inngest · React + TanStack Query, MapLibre + PMTiles · React Native + Expo · AWS (ECS Fargate, RDS, S3, Bedrock, WAF) + Terraform · Grafana/Sentry · QGIS/GeoPackage geospatial.

You: 8+ yrs production, full-stack TS, owned a Terraform/AWS stack (not just consumed one), strong relational DB fundamentals, comfortable with no playbook. Bonus: PostGIS, RN/Expo, RLS/multi-tenancy, LLM, B2B/B2G.

We lean hard on AI tooling and expect you to: but the bar is human-reviewed, well-tested code; "the model said it worked" isn't a defence. Remote by design, quarterly offsites.

Apply here: https://zrec.eu/E0KZN

vvd | Design Engineer | Remote (work from anywhere) | Full-time | React, TypeScript, Next.js https://vvd.world

We’re building tools for storytellers, worldbuilders, writers, and creators.

We’re looking for a Design Engineer who can design and build polished product experiences end-to-end. You should care deeply about taste, interaction, motion, and frontend craft, but also understand enough about APIs, auth, and data flow to avoid getting blocked.

We’re AI-native, but not trying to replace human creativity. We use tools like Cursor and Claude Code as leverage to move faster while keeping a high quality bar.

Strong fit if you’ve shipped real things, can go from rough idea to polished implementation without waiting for perfect specs, and have built interfaces that feel good, not just functional.

Apply: https://jobs.ashbyhq.com/vvd/c56cc77f-1ac1-4e31-9281-b7d0121...

Full Stack Engineer | Lucknow, India | Remote

Looking for: Full-time SDE roles at early-stage startups.

Tech Stack: TypeScript, Next.js, Node.js, PostgreSQL, Supabase, React.

About me: Final year CS undergrad currently interning at DentalScan (US). I am a "full-stack engineer who ships."

Recent Projects:

VibeDraw: AI sketch-to-website platform with a runtime React compiler and 3-tier AI pipeline.

AI Voice Booking Agent: Handles 200+ req/hr.

Inventory SaaS: Built with NLP querying capabilities.

Portfolio: https://portfolio-phi-red-69.vercel.app/ Email: ashutoshpandey23june2005@gmail.com

Estuary | US-Based / Remote | Full-time – https://estuary.dev/

Estuary is a VC-backed, post–Series A startup powering right-time data replication and transform — from sub-second CDC replication to terabyte-scale OLAP data flows. We’re open-source, developer-first, and focused on making data movement radically simpler across both our Platform and Applications layers.

We’re hiring for:

Senior Systems Engineer — Capture & Materializations Design and build high-performance connectors that move data in and out of Estuary in real time. Work across APIs, databases, and streaming systems to ensure correctness, reliability, and scalability. This role is deeply systems-oriented, with a focus on data plane execution. Go and Rust are core to our stack.

Senior Systems Engineer — Control & Data Plane Own core infrastructure that orchestrates and powers Estuary’s runtime, from control plane services to distributed data processing systems. Tackle challenges in scaling, fault tolerance, and performance across a globally distributed system. Strong backend fundamentals required; Go and Rust experience preferred.

Senior Front-End Engineer Build highly interactive observability and data-flow experiences for the Estuary platform. Design and develop real-time visualizations of distributed data pipelines, metrics, and system health using React and TypeScript. We’re looking for engineers with deep front-end expertise, strong performance instincts, and experience building complex data visualization or developer-focused products.

Product Manager Own product areas end-to-end, working closely with engineering and design to shape the roadmap and deliver a great developer experience. Engage with users, translate real-world use cases into product decisions, and help define how modern data infrastructure should feel to build with.

Technical Product Marketing Manager Founding product marketing hire working closely with Estuary’s Head of Marketing and Developer Relations team. Help shape how we position and communicate the platform to technical audiences through product launches, messaging, technical content, demos, customer stories, and developer-facing campaigns.

What we’re looking for: Engineers who care about building reliable, maintainable systems and enjoy working with complex APIs and data flows. We value curiosity, clear communication, and a willingness to learn.

Bonus points for experience with CDC tools, open source contributions, or fast-paced startups.

To apply: Email your resume to careers@estuary.dev

Tetsuwan Scientific | Software Engineer | San Francisco (SoMa) | ONSITE | Full-time | $140K–$180K + equity | https://tetsuwan.com

We work with robots that run biology experiments. The robots are accurate, but programming them by hand takes so long that most labs don't bother. So we wrote a compiler and visual editor a scientist can use. They describe their protocol in plain language, we parse it into a structured format, and compile that to optimized code. Our end goal is to build the infrastructure for autonomous science and a centralized cloud lab. Short demo: https://tinyurl.com/mrx63phb

The team is three software engineers, an automation engineer, the founders, and soon a designer. The codebase is one monorepo containing an OCaml compiler, Python backend services, and a TypeScript/React editor. The challenges come in the form of eliciting scientific context and tacit knowledge and in the fact that a protocol has to deterministically run correctly.

We are looking for at least 3 years of experience. OCaml isn't a requirement, just a willingness to learn it. Nice if you've done DSLs, compilers, life sciences or lab automation, an ML-family language, or LLM parsing and evals.

Apply: https://jobs.ashbyhq.com/tetsuwan/ad583fec-dc0a-4b6c-8171-41...

Sequent Tech | Senior Fullstack Engineer | REMOTE (Global) | Full-time | sequentech.io

Sequent builds cryptographically secure online voting infrastructure used in 200+ real elections across multiple countries. We're a fully remote team working on an open-source platform combining Rust, TypeScript, and modern DevOps. We handle End-to-end encrypted voting, cryptographic mixnets, and tamper-evident logging.

Tech Stack: Rust, TypeScript/React, WebAssembly, GraphQL, PostgreSQL, Kubernetes, Keycloak, ImmuDB

Open Roles:

Senior Fullstack Engineer (Rust + TypeScript/React)

Reach out: team@sequentech.io

Second Nature | Staff Software Engineer (Engineering AI Team), Staff Software Engineer, Senior Software Engineer, Engineering Manager | REMOTE (US) | Full-time

Second Nature (https://secondnature.com) is redefining professional property management with fully managed Resident Benefits Packages. We're a Resident Experience Platform helping 1,000+ property management companies automate resident onboarding, credit-building, renters insurance, utilities, and other resident services, creating "Triple Win" experiences for residents, property managers, and investors.

We're the only 7-time national NARPM vendor of the year!

Tech Stack: TypeScript, React, Next.js, NestJS, PostgreSQL, Kubernetes, Terraform, AWS. CI/CD with GitHub Actions. Domain-driven design and event-driven architecture.

Culture: We move fast ("Pirate Ship, Not a Cruise Ship"), take extreme ownership, and focus on outcomes. We're investing heavily in AI across our product and workflows, including a dedicated AI team.

Benefits: 100% remote (US), medical/dental/vision, 401K, open PTO, equity.

Open Roles:

Staff Software Engineer, Engineering AI Team ($150K-$180K) - High-agency IC building agentic AI dev workflows; the team ships 100% of its software with AI coding agents like Claude Code.

https://www.secondnature.com/careers?ashby_jid=ce8bb758-f58a...

Staff Software Engineer ($150K-$190K) - Senior IC setting technical direction across teams while staying hands-on in the codebase.

https://www.secondnature.com/careers?ashby_jid=9bc8e6af-d2bf...

Senior Software Engineer ($155K-$185K) - Full-stack across the platform: TypeScript, Python, SQL, CI/CD.

https://www.secondnature.com/careers?ashby_jid=6b92e266-4491...

Engineering Manager - Player/coach: lead 5-10 engineers, drive architecture decisions, and ship production code.

https://www.secondnature.com/careers?ashby_jid=6ac49e4d-9541...

Pelotech | Staff Software Engineer | REMOTE (US Only) | Full-Time

We're Pelotech (https://www.pelotech.com), a software consulting company. We are deeply technical but also deeply human: approachable, adaptable, curious, and helpful. We aren't here to blindly build features; we're here to solve problems thoughtfully.

We're looking for a Staff Software Engineer who enjoys working directly with clients, mentoring engineers, and solving messy real-world problems.

You might call yourself a passionate polyglot, versatile specialist, or curious expert. We're looking for engineers with 5+ years of experience, strong backend skills, proficiency in languages such as TypeScript, Go, Python, Java, or Rust, and familiarity with Kubernetes, Terraform, ArgoCD, AWS, and GCP.

We value curiosity, pragmatism, kindness, autonomy, and people who enjoy learning new technologies.

Compensation: $160k–$210k base salary + 10–20% profit sharing + full benefits.

Contact: [henry.anderson@pelo.tech](mailto:henry.anderson@pelo.tech) https://www.linkedin.com/in/henryanderson9/

Piramidal | Senior Backend, Infra, Frontend Engineers | NYC onsite | Full-time

Piramidal is looking for senior software engineers - frontend, backend, and infra - who are excited about solving difficult problems at the boundary of foundational AI and neuroscience. We work on real-time monitoring of neurological data to help clinicians better treat their patients.

Our core backend and infra stack is Python, Go, and Terraform deployed to various cloud and on-prem, while our frontend stack is React and TypeScript. Bonus points for either: standing up and maintaining reliable streaming systems with a production/ops mindset; or building smooth, data-intensive React UIs with modern plotting/visualization libraries.

You would take an active role in architecture and design, implementation, and hiring from your early days, and will have the opportunity to have ownership commensurate to your capacity and interests.

Apply for jobs here: https://job-boards.greenhouse.io/piramidalinc