Regal.ai | Sr. Software Engineer | NYC Hybrid | Full-Time | https://www.regal.ai/

Regal is the AI Agent Platform — we power millions of outbound/inbound calls, SMS, and email interactions for enterprise customers like Google, AAA, and Coursera. $82M raised, $7B in revenue driven for customers, 250M+ calls completed.

We're hiring a Senior SWE to own backend systems end-to-end. You'll directly contribute to our voice agent infrastructure, build tooling to evaluate agents via simulations and enhanced observability, and ship cutting-edge AI features fast to large, active user bases.

5-12+ years of experience with production web-scale platforms. Python expertise required. AI/LLM experience a big plus.

Stack: Python, TypeScript/Node.js, React, NestJS, GraphQL, Postgres, Redis, Kinesis, DynamoDB, AWS

Apply: https://jobs.lever.co/regalvoice/c8d4f421-4c8d-43b9-ae6d-16d...

Happy to answer questions here.

Breezy | AI Product Engineer (Mid–Senior) | Remote (US) | Full-time | $120k–150k + Equity | https://www.getbreezyapp.com

Breezy builds modern field service software for residential HVAC companies. The industry still runs on legacy systems like ServiceTitan and Housecall Pro. We’re replacing them with a modern platform that combines strong product design, practical automation, and applied AI.

We’re a small, senior team building quickly with real customers. We value engineers who like owning problems end-to-end and shipping thoughtful software.

We’re hiring an AI Product Engineer to help build new product capabilities across the platform. You’ll work across the stack (TypeScript, React, Node.js, PostgreSQL) and contribute to features that incorporate LLMs and automation where they meaningfully improve the product.

Engineers on our team regularly use modern development tools such as Claude Code, Codex, and Cursor as part of their workflow.

This role is well suited for engineers who enjoy building real products, working across the stack, and having meaningful ownership in an early-stage startup.

What we’re looking for • Strong full-stack engineering skills • Comfort working with LLMs and AI-assisted development tools • Product-minded engineers who like shipping quickly • Builders who want large ownership and impact in a small team

Tech stack: TypeScript, React, Node.js, PostgreSQL, Kubernetes, AWS Comp: $120k–150k + equity, health benefits, 401(k), remote-first with periodic team offsites

To apply: Email jobs+mar26@getbreezyapp.com with your resume and links to your work (GitHub, LinkedIn, personal projects).

Intrinio | Senior Full Stack Engineer | Remote | Full-Time or Contractor

We’re hiring a Senior Full Stack Engineer at Intrinio.

Intrinio powers fintech platforms, trading tools, and analytics applications with real-time and historical financial data. Our team standardizes complex market data into clean, developer-friendly infrastructure used by companies across the financial ecosystem.

This is a foundational engineering role on a lean, ownership-driven team where engineers help shape architecture and product direction.

You’ll work across systems that power real-time financial data delivery, including backend services, data infrastructure, and cloud architecture.

Some of the work includes: • Building backend services in Ruby, .NET Core, and Python • Contributing to real-time exchange data pipelines • Designing and scaling AWS infrastructure (EC2 autoscaling, ECS/Fargate, RDS, Lambda) • Working with core data systems like Postgres, Redis, Snowflake, and S3 • Improving CI/CD pipelines using GitHub Actions and CircleCI • Designing and optimizing APIs that deliver financial data at scale • Supporting DevOps, reliability, and performance improvements

Our stack spans Ruby, .NET Core, Python, Vue.js, AWS, Postgres, Redis, Snowflake, and modern CI/CD tooling, so curiosity and the ability to move across systems matters more than deep specialization in one language.

To apply, email: rcarpenter@intrinio.com

Weave Platform (https://www.weave.bio/) | San Francisco, CA | HYBRID | FULLTIME

Regulatory AI SaaS for Biotech | Weave Bio is a <50 person Series A start-up building an AI-native regulatory automation management platform for novel therapeutic candidates (specialty drug development).

Hiring: - Senior or Staff Backend Engineer (Django + Python)

- Senior or Staff Frontend Engineer (Typescript + React)

- Staff DevOps Engineer (AWS, Linux, SRE)

- Senior Product Designer

- Senior Product Manager

- Senior/Lead SDR

Apply here: https://www.weave.bio/careers-at-weave-bio/

In-office days are Tues/Wed/Thurs; WFH days are Mon/Fri.

Bitrise (YC, CI/CD for DevOps) | Senior/Staff Infrastructure Engineer | Remote (EU); Budapest, Hungary

Own the full stack for real: BGP/EVPN, transit, data center hardware, one of the world's largest Mac build fleets, and a private cloud spanning multiple locations — not just wiring up AWS components. Hybrid Linux/macOS environment, heavy Terraform/Ansible, usage. If blinking LEDs and routing tables get you going, this is the rare infra role where you can touch everything end-to-end.

https://bitrise.bamboohr.com/careers/130

SuppMatch | CTO | Warsaw, Poland | Hybrid + International Travel | USD 85K–102K + Equity

SuppMatch is an AI-powered supplement recommendation engine for e-commerce platforms. We integrate into online supplement retailers, pharmacies, and marketplaces to deliver ultra-personalized, science-backed recommendations in real time. Think of it as the AI intelligence layer for the global supplements market.

Stack: Python, TypeScript, React Native, Node.js, GraphQL. AI/ML: LLMs, NLP, vector databases (Pinecone/Weaviate), PyTorch, TensorFlow, Hugging Face, LangChain. Infra: AWS/GCP, Docker, Kubernetes, CI/CD. E-commerce integrations: Shopify, PrestaShop, Magento, custom.

This is a startup CTO role. You'll own the full technical vision; architecture, AI engine, data pipelines, integrations, team, while still pushing code and joining partner calls. We're live in production, in active commercial conversations across 8+ markets (Poland, Germany, UK, Italy, Austria, Czech Republic, USA), and closing a seed round.

Requirements: Polish & English fluency. Warsaw-based (hybrid). Hands-on experience with AI/ML in production. Previous CTO / VP Eng / founding technical lead at a fast-growing startup.

jacob@suppmatch.ai | https://suppmatch.ai

SuppMatch | CTO | Warsaw, Poland | Hybrid + International Travel | USD 85K–102K + Equity

SuppMatch is an AI-powered supplement recommendation engine for e-commerce platforms. We integrate into online supplement retailers, pharmacies, and marketplaces to deliver ultra-personalized, science-backed recommendations in real time. Think of it as the AI intelligence layer for the global supplements market.

Stack: Python, TypeScript, React Native, Node.js, GraphQL. AI/ML: LLMs, NLP, vector databases (Pinecone/Weaviate), PyTorch, TensorFlow, Hugging Face, LangChain. Infra: AWS/GCP, Docker, Kubernetes, CI/CD. E-commerce integrations: Shopify, PrestaShop, Magento, custom.

This is a startup CTO role. You'll own the full technical vision; architecture, AI engine, data pipelines, integrations, team, while still pushing code and joining partner calls. We're live in production, in active commercial conversations across 8+ markets (Poland, Germany, UK, Italy, Austria, Czech Republic, USA), and closing a seed round.

Requirements: Polish & English fluency. Warsaw-based (hybrid). Hands-on experience with AI/ML in production. Previous CTO / VP Eng / founding technical lead at a fast-growing startup.

jacob@suppmatch.ai | https://suppmatch.ai

QuoIntelligence | Senior Data Engineer | Remote - Spain/Italy | Full time

QuoIntelligence is a European cybersecurity threat intelligence company (~40 people, Series A, remote from Spain/Italy/German). We collect over 90% of our intelligence data in-house. No bulk feeds from Recorded Future or CrowdStrike. Custom pipelines scrape underground forums and ingest technical threat feeds, all built internally. The data engineering here produces the intelligence directly.

We are looking for someone to maintain and evolve the data infrastructure (built from scratch on DigitalOcean, no managed services, no IaC) while leading the migration to AWS and beyond.

Team is small and you'd be one of two data engineers, collaborating directly with Threat Intelligence Engineers on data access patterns and source integration.

More here: https://jobs.quointelligence.eu/jobs/7247890-senior-data-eng...

Rivet | Fullstack engineer | Remote (US) | https://rivet.app Your favorite artist is on Rivet. Chance the Rapper, Major Lazer, John Legend, and more engage their fans with our AI marketing platform. We boost D2C revenue for brand and creator teams by growing their communities and powering their direct-to-fan marketing and sales across all channels.

I'm one of two founding engineers, and we're expanding to an eng team of three. We're looking for scrappy and adaptable fullstack devs with demonstrated early-stage startup experience. Our main web app stack includes Express / React on Typescript, Postgres, hosted on AWS.

We're pre-seed, VC-backed, and have gone from pre-revenue to profitable in the past 2 years. If interested, apply here and mention Hacker News! https://rivetapp.notion.site/Full-Stack-Engineer-29cddd02b55...

Digital Health Strategies | Full Stack Product Engineer (Ruby, JavaScript) | REMOTE (USA or Canada); Washington, DC; NYC; Vancouver, BC; | https://digitalhealthstrategies.com | $140k - $220k

We are a series B health tech and data company building software for large non-profit health systems to grow patient volumes, connect patients with the care they need, and raise money from grateful patients.

We offer the industry leading grateful patient web app that allows health systems stand up highly integrated web sites quickly and easily to collect stories and feed donor pipeline development.

We're a 30-person team, spread between Washington, DC, New York City, Philadelphia, and Vancouver, BC. We reached $4MM+ annual revenue before raising any outside capital.

We're looking for a mid to senior full stack software engineer generalist who is eager to manage their own product, likes to build quickly, and is focused on understanding the customer and solving their problems. You will have ownership and autonomy with minimal meetings. We use ruby, rails, javascript, postgres, aws, docker.

I'm Arif - reach out if this sounds interesting arif@digitalhealthstrategies.com.

Duolingo | Full-time | Multiple roles | $177K-$240K for NY roles | NY and London | Hybrid

Our mission is to develop the best education in the world and make it universally accessible. Our culture is eng-driven, friendly, and very data-driven thanks to our large userbase. Check out our blog to see what engineering at Duolingo can look like: https://blog.duolingo.com/hub/engineering/

Tech stack: (frontends) Swift/Kotlin/TypeScript, (backend) Python/Kotlin/Postgres/Dynamo, (infra) AWS/k8s/Terraform.

We're always hiring for engineers. A few roles below:

Senior Engineering Manager, Chess (NY) https://careers.duolingo.com/jobs/8385137002

Senior Android Engineer (NY) https://careers.duolingo.com/jobs/8217266002

Senior iOS Software Engineer (NY) https://careers.duolingo.com/jobs/8318257002

Engineering Director (London) https://careers.duolingo.com/jobs/8444624002

Senior Gameplay Programmer (London) https://careers.duolingo.com/jobs/8424809002

Base salary: $177-240K for the NY-based roles, unsure about the London-based roles.

Perks: free lunch, 2-week winter break + 20 days of flexible time off.

Decise | Principal Engineer & Technical Strategist | Remote (US) | Fully Remote | Contract (1099)

Decise is a hands-on advisory and delivery firm that helps organizations unlock the full value of their technology and improve business profitability.

We work directly with executives to define what should be built, then we build it. Our work spans software engineering, data platforms, analytics, and customer-facing digital products. We often operate as fractional CIOs and CTOs, guiding both the strategic direction and the technical execution of our clients’ technology initiatives.

Our clients rely on us to turn complex business problems into working systems — not slide decks.

We are intentionally small and senior. Everyone on the team is a builder who can operate independently, solve complex problems, and deliver finished systems that people actually use.

White-glove service. Blue-collar grit.

We’re looking for a principal-level technologist who can move between engineering, architecture, and client strategy. Most of your time will be spent building systems and writing production code. The rest will involve working directly with executives to shape technical direction and ensure the work creates real business value.

Typical technologies we work with include React, Angular, Next.js, Node.js, Go, Snowflake, SQL, dbt, Domo, Streamlit, AWS, Vercel, and modern AI-assisted engineering tools. The exact stack varies by client; the ability to learn quickly and move confidently across technologies matters more than any specific tool.

Strong candidates typically have 10–15 years of experience building production systems and are comfortable operating both as hands-on engineers and as technical advisors to executives.

This is a long-term, full-time independent contractor engagement (1099). Everyone at Decise — including the founders — operates in this structure. Compensation is designed to be competitive with senior engineering roles at leading technology companies.

The fastest way to stand out is to show us something you’ve built: a production system, GitHub repository, application, or data platform you designed.

Apply here: https://www.linkedin.com/jobs/view/4380468950/

Prelude | Paris | ONSITE | Full-time

Send verification messages anywhere in the world with the best prices, top deliverability, and zero spam with Prelude - the SMS API powering your growth.

https://prelude.so/

With an ex-Zenly founding team and investment from Seedcamp and Singular, we've already grown to 50 people and signed with X, Sunday, BeReal and more.

Hiring across Engineering (Go, Rust, AWS). We also have a niche role for someone specialising in device fingerprinting where we can be more open minded on remote work or relocation. https://jobs.ashbyhq.com/prelude

Trunk | https://trunk.io Tech Lead (CI & Test Data Platform) - San Francisco HQ and open to Relo Marketing Lead (Developers) - Remote friendly Developer Advocate - San Francisco HQ and open to Relo Sr Platform Engineer - San Francisco HQ and open to Relo

Trunk is an a16z funded (25M) Series A dev tools startup, redefining software development at scale. At Trunk, our mission is to help teams create high-quality software quickly. AI has made writing code 10x faster, but shipping is still painfully slow. The bottleneck has shifted downstream - to merge conflicts, flaky tests, inconsistent code quality, and dozens of other frictions that drain productivity and morale. Engineering teams that can stay focused on designing, implementing, and delivering software will build magical, high-quality projects - and they'll be happier doing it. We're building a CI Reliability Platform that empowers teams to land code faster and develop happier!

Our products:

  * Merge Queue: Ensure your PRs keep the builds you care about green at any scale.

  *Flaky Tests: Detect and eliminate Flaky Tests.

Frontend: Typescript, React, Next.js, AWS Backend: Typescript, Node, AWS Data pipelines: Dagster, Python, polars CI/CD: GitHub Actions

Unlimited PTO (and we all actually take PTO), competitive salary and equity packages! Please apply here: https://trunk.io/jobs.

COMPANY: Tvrtle ROLE: Founding Full Stack Engineer LOCATION: Remote COMMITMENT: Part-time / flexible COMPENSATION: Equity TECH: Laravel, Vue, Tailwind, AWS

Tvrtle is building a portfolio of software products across SaaS, developer tools, and niche consumer apps.

We're looking for a founding engineer who enjoys building products from scratch and wants meaningful ownership in what we create.

You'll work directly with the technical founder and help design, build, and launch products used by real users.

More details: https://tvrtle.com/FOUNDING_ENGINEER.md

Blackshark AI | Software Engineers & Platform Engineers | Full-time | Austria or Remote EU Hours | VISA sponsorship available

We build geospatial AI infrastructure. Our platform lets analysts train custom object and change detection models on satellite/aerial/drone imagery in minutes, then reconstructs 3D terrain from those detections. We just shipped a planetary-scale simulation platform with Lockheed Martin powered by Unreal Engine.

If you want to work on distributed systems that run in a data center one day and an edge laptop the next, we have interesting problems. Our training and inference infrastructure is processing trillions of pixels and we deliver real world impact for our customers across defense, intelligence, and local governments.

Tech Stack: Python, Fast API, PyTorch, Postgres, Redis, Vue.js

Infrastructure Stack: Kubernetes & Docker, Linux, AWS & Azure, Azure DevOps, Terraform, ELK, Prometheus & Grafana, ArgoCD & Helm

Roles:

Software Engineer - Frontend UI https://jobs.eu.lever.co/blackshark/5c596b85-5134-4601-be25-...

Software Engineer - Data Plane Team: https://jobs.eu.lever.co/blackshark/6110fedd-5cd8-40e5-ac11-...

Software Engineer - Machine Learning Team: https://jobs.eu.lever.co/blackshark/7c4b0833-790b-4490-b24a-...

Platform Engineer - Deployment Team: https://jobs.eu.lever.co/blackshark/56a85834-d986-4105-9cc8-...

or reach out to HM with questions at: 'eivanov@' + username[:-2] + '.' + username[-2:].lower()

Hyperact | Rust Engineer | Remote, UK | 3m Contract | Outside IR35

We are a product transformation consultancy looking for a Rust contractor to support one of our clients with a short term project.

Rust, AWS, Serverless, DynamoDB, Web/API development.

UK based contractors, outside IR35 only please, must have right to work in the UK, however this is a fully remote role.

Fire your CV and interview availability to jacob[dot]clark[at]hyperact[dot]co[dot]uk

About us: https://www.hyperact.co.uk/

TrueSpace | Full-Stack Engineer | Denver, CO | Hybrid / Remote

TrueSpace helps make second-stage businesses better. We're building TrueScore, a metric to assess a company's ability to scale, and Trudy, an agent to help CEOs improve that metric.

You'd join a small team of experienced founders and operators and help build features like onboarding, Stripe billing, org admin, and our agent. We're a small tech team, so you'd also help with CI/CD, lightweight DevOps, and AWS infrastructure.

Our current tech stack is simple and open to change: Laravel/PHP backend, alpinejs, mysql, and Bedrock on AWS.

You'll be successful in this role if you're a solid engineer and web developer, can read and write sql, and have some experience with tools and libraries like the ones we use--you needn't know exactly our stack.

Denver-based preferred. Competitive salary. Medical/dental/vision benefits, 401K match up to 4%. Sorry, no Visa sponsorship at this time.

For more about the job see https://truespace.com/careers/full-stack-developer/?njs and if that interests you, read more about TrueSpace and the team at https://truespace.com/ and please email us at careers@truespace.com with a resume and anything else that helps you show off what you can build.

Mobasi | Founding Engineer | Austin, TX / Remote | $240k + Profit Sharing | https://mobasi.ai

Mobasi builds autonomous AI agents for digital forensics. Our software orchestrates 150+ forensic tools to help law enforcement turn days of manual evidence analysis into minutes, aiding in cases involving child exploitation, trafficking, and homicide. We are bootstrapped, profitable, and shipping fast.

We are looking for our first hire outside the three co-founders to own infrastructure, DevOps, and compliance. You will transition our build pipeline from manual updates to an automated delivery system scaling to thousands of agencies. You will manage infrastructure across AWS, GCP, Azure, and AI providers, while owning CJIS and SOC2 compliance.

Tech Stack: Rust, TypeScript, Python, Tauri, Next.js, Docker, Pulumi, Terraform.

We work as a small SWAT team. We are AI-native and expect you to use tools like Cursor and Claude to ship significantly faster. We do not have sprints or daily standups. Instead of lottery-ticket equity, we offer a high base salary and direct profit sharing.

Apply here: https://jobs.ashbyhq.com/mobasi/b385d2bb-d338-44cc-8728-f0eb...

ML6 | Machine Learning Engineer, Data Engineer | Python, TensorFlow, PyTorch, GCP, AWS, Azure | Full-time | Amsterdam, Berlin, Munich, Eindhoven, Ghent (EU) On-site/hybrid

We are a Machine Learning consulting company that builds end-to-end Machine Learning solutions. By applying the latest AI research, we keep our clients at the forefront of innovation. If you are interested check out: https://www.ml6.eu/knowledge-hub/blog and https://www.ml6.eu/customers/cases

Work on innovative projects for the biggest clients across Europe such as Randstad, ASML, FUNKE, and many more! Whether it’s about leveraging LLMs to improve customer support, building data lakes on cloud platforms to improve storage or implementing models using sensor data for quality control. You can find it all at ML6. You will mostly work with Python and a range of ML frameworks such as TensorFlow, PyTorch, or HuggingFace Transformers to solve hard Machine Learning tasks and help bring these application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).

Open roles include:

• Senior/medior AI Engineer

• Senior AI Project Manager

• Chief Product Owner

and many more!

Apply now at the https://jobs.ml6.eu/