Typescript Jobs - January 2025

Steel is building open-source browser infrastructure for AI agents & apps. We make it easy for AI engineers to ship products that interact with the web using our Sessions API - An API that controls fleets of browser sessions in the cloud while we handle everything from scaling to antibot and more.

Our tech stack: - Frontend/Backend: Typescript, React/Next.js, Node.js, Fastify - Infrastructure: Firecracker VMs, Docker, AWS - Key tools: Zod, Drizzle, Redis, PostgreSQL

We're a small but fast-moving team looking for experienced engineers who thrive on autonomy and technical challenges. You'll work directly with our founding team to make Steel the go-to browser infrastructure powering the next billion AI agents. If you love dev tools, open-source, and/or AI, you're at the right door.

Current roles (all roles include competitive comp + equity): - Full Stack Engineer: Build dev tools, APIs, and UIs to help devs control browsers at scale - Infrastructure Engineer: Design, optimize, and scale our browser VM infrastructure - Applied AI Engineer: Work on integrations, agents, and real-world AI use cases

With 2.8k+ GitHub stars, paying customers, and millions of API calls served, we're building a remote-first team that's shaping how humans interact with the internet of the future.

Learn more: https://steel-dev.notion.site/jobs-at-steel To apply: Email careers@steel.dev with Github & resume (mention HN)

Doctors are overworked, burnt out, and are quitting in masses.

I'm head of engineering at Freed, where we combine clinician love with the latest AI tech and intense execution to create products that make clinicians happier.

Our first product is an AI scribe that automates medical documentation. In 1 year we:

- Acquired 10,000 paying and loving clinicians and exceeded $11M ARR

- Generated 70,000 patient notes daily using ASR and LLMs

- Created a consumer-grade UX, with greater enthusiasm than any product I've seen (https://love.getfreed.ai/b2xGQ1)

With the backing of the best VCs in the world, we are rapidly expanding our product offering. Patient facing assistant, patient insights, EHR integrations, and other products are being built and used by thousands of clinicians and millions of patients.

Our engineering culture emphasizes speed, end-to-end ownership, responsibility, and independence. Our tech stack is React and TypeScript / Node.js.

Apply here: https://www.getfreed.ai/careers?utm_source=Aob6wkJPZQ

What would a healthcare system freed from the yoke of history look like?

It would be outcome-driven, certainly. Propelled by human dignity rather than by profit. Upheld by a network of compassionate experts actively working to increase medical literacy for all. How would you do it? You would open the doors for any patient to be able to work with experts who can simply help—people who know how to interact with the legacy system and know the magic words to get patients exactly what they need, when they need it. You would build a fortress of hope within the U.S. healthcare system.

That’s what we’re doing at Solace. Solace is a healthcare advocacy marketplace that connects patients and families to experts who help them understand and take charge of their personal health.

Our current stack is Typescript, React, Postgres, Heroku.

Learn more: https://jobs.ashbyhq.com/solace/019c9ce5-4053-4f5b-a639-d75a... Contact: Lauren@Solace.health

We are Lightdash, an open source BI and analytics dashboard. We have recently closed our series A and are actively hiring for senior full-stack engineers with experience in Typescript+React+Node+SQL. Bonus points for experience in data-related companies/projects, or being a founding engineer at a startup.

We are a remote-first company, with our team members currently distributed all over Europe (we are not considering candidates in other continents at the moment).

You can see the full details and apply here: https://jobs.ashbyhq.com/lightdash/9efa292a-cc34-4388-90a2-2... (please mention on the referral field that you come from HN!)

Notice this is a fulltime, permanent position, so we’re not considering contractors/consultants.

We are a small seed-funded ($8M) team of 16 people looking for key hires who want to work closely with our founding team to build the next generation of commerce infrastructure.

We are looking for engineers motivated to tackle complex problems and who care about crafting great products for developers.

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Tech stack: Node, Typescript, Postgres.

- Full Stack Engineers for our core team: https://medusajs.com/careers/software-engineer/

- Solutions Engineer to support users building with Medusa: https://medusajs.com/careers/solutions-engineer/

We’re an AI/ML start-up revolutionizing the healthcare tech space by helping physicians provide better care for their patients in MSK pain management. We dive deep into clinic data to provide meaningful insights for our clients (clinics). We’re currently scaling out our core product and need someone to handle the infrastructure (web and data) of our live production system.

Half of our engineers are from HN! We are hiring for multiple positions:

data: Data Scientist, Data Engineer, Data Analyst

Software: DevOps/SRE/Platform Engineer, Fullstack Engineer, Backend Engineer.

See job post for continuously updated job descriptions: https://jobs.ashbyhq.com/flaglerhealth

Drop a resume into the General Application if you belong in something else (like operations, business dev etc.)

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keywords: node, typescript, javascript, ts, js, vue, python, spark, kubernetes, k8s, argocd, helm, grafana, FHIR, HL7

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hot tip: put "HN" on "How did you find us"

About Civils.ai

– Building a no-code AI platform for the construction and civil engineering sector

– HQ in Singapore but work on global projects

– Revolutionizing workflows with cutting-edge tech to drive efficiency and innovation

What You'll Do

– Develop and maintain scalable, high-quality frontends using React (or similar)

– Write clean, performant JavaScript and TypeScript code

– Collaborate with our CTO to bridge design and functionality seamlessly

– Champion UI/UX best practices, delivering intuitive user experiences

– Review code, mentor junior engineers, and foster a culture of excellence

What We Offer

– Remote-first culture with APAC-friendly hours

– A flat structure that values your ideas and impact

Our Tech Stack

– React (or equivalent)

– JavaScript, TypeScript

– Slack, Notion

If you’re passionate about transforming a traditional industry shaping the physical world with AI, send your resume and portfolio to hello@civils.ai. Be part of the team shaping the future of civil engineering

Link to website: https://civils.ai/

Build high-quality, robust engineering at the rarest of things - a Silicon Valley startup that is both wholesome AND profitable. We have 8-figure revenue, are YC-backed, and growing fast.

Tech stack (required): Back-end (Node, Typescript, MySQL, REST* / GraphQL), Front-end (Vue.js), deploy (AWS, Docker/K8s)

Minimum 5 years experience (with Node or Vue).

2-stage interview process.

If you want to help older adults and people with disabilities, send your LinkedIn/CV to william@gogograndparent.com (keep it brief) or apply at https://www.ycombinator.com/companies/gogograndparent/jobs

We're building the next generation of brand-first advertising using Gen AI. Our platform helps marketers launch and optimize campaigns 10x faster than the do today.

The Role: As our Senior Frontend Engineer, you'll: - Own our frontend architecture from the ground up - Work directly with customers to translate their needs into elegant, powerful features - Build complex data visualizations and interactive AI interfaces - Shape our technical roadmap and make key architectural decisions

Why Adora: - Backed by Village Global (Reid Hoffman, Jeff Bezos, Mark Zuckerberg, and other tech leaders) - Founded by serial entrepreneurs who've built and sold companies - Small, high-impact team where you'll own major technical decisions - Competitive salary + meaningful equity (we want you to be an owner) - Modern tech stack with freedom to experiment with new tools - Real customers already using and loving our product

Tech Stack: - Frontend: React, TypeScript, MUI, Vite, LaunchDarkly, Storybook, RTL - Backend: Python, AWS

We have a bias for action and ship fast. If you enjoy autonomy, technical challenges, and having direct impact on product and business outcomes, we'd love to chat.

Apply: https://jobs.lever.co/adora/ae1be900-9da2-47a3-940f-9e984190...

We are building a future where anyone can make music by using a simple prompt or lyrics. We’re scaling our engineering team and hiring for the following roles:

Stratipath, a spin-out from the Karolinska Institutet in Stockholm, is a rapidly growing medical software company improving breast cancer treatment and patient outcomes with a novel and cost-effective AI-based solution. The platform is based on deep technical and medical expertise and a uniquely large population-representative dataset of histopathological images from patients.

We’re looking for a full-stack developer (TypeScript, C#, CI/CD, devops) with experience from regulatory controlled environments which will work on our customer portal and on partner integrations. Big plus if you've worked with development of medical devices and have experience of IEC 62304, ISO 13485, MDD/MDR or IVDD/IVDR.

More info: https://careers.stratipath.com/jobs/5070246-full-stack-devel...

Count is like Jupyter, Tableau and Miro combined in one tool. Some of the world's leading data teams use it for everything from iterating data models and performing in-depth analyses to creating process flow maps of their entire business.

We're a small team looking for experienced software engineers who are interested in tackling deep technical challenges in the data analytics space.

For the best possible user experience, we have developed various technologies in-house, including a custom WebGL rendering engine, our own data visualization library, and a reactive SQL/Python notebook and database query framework.

Example projects: accelerating rendering using quadtree tiling, extending interactivity and customizability of visualizations, leveraging LLMs in data exploration, developing serverless frameworks for executing database queries at high concurrency.

Our tech stack: TypeScript, Python, Node, WebAssembly, WebGL, Apache Arrow/Parquet, DuckDB, Kubernetes, React.

For more details and to apply: https://jobs.ashbyhq.com/count

Rinse provides dry cleaning and laundry delivery services to customers in nine metropolitan areas in the US. We have sophisticated logistics optimization software, a polished consumer product, and firm business fundamentals. We're now over a decade old - this is a stable, yet consistently growing and innovating, company.

Our engineering team is distributed across the United States and internationally, and has been entirely remote for years now, but a desk can be provided in the above cities if you'd prefer.

We're open to both newly-graduated engineers or more senior engineers, provided they meet our bar. We're particularly interested in true full-stack engineers, with strong React / Typescript / CSS skills to complement comfort in a Python / Django environment.

Search term bingo: Logistics, Django, Python, Optimization, React, React Native, Postgres, Mobile Engineer, Tailwind

https://www.rinse.com/careers/software-engineer/

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We're also hiring a Product Manager:

Our product team is distributed across the United States and internationally, and has been entirely remote for years now, but a desk can be provided in the above cities if you'd prefer. Our product managers enjoy a high level of integration with our engineering team, and our open culture ensures a high degree of collaboration with marketing and operations functions. We're built to get things done.

We're looking for a mid-career product manager to join our product management team to drive our customer-facing, valet-facing, and cleaning-facing products forward. The ideal candidate has a few years' experience at a consumer services company, with both analytical skill and qualitative insight into consumer behavior. Come and take our company to the next level!

Search term bingo: Logistics, Delivery, Growth, Analytics, Funnel, B2B, SaaS, Marketplace

https://www.rinse.com/careers/product-manager/

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We're also hiring a Business Development Representative:

As part of the Sales team, you will be directly responsible for helping grow our fast-growing B2B vertical by driving outbound lead generation efforts, building relationships with potential B2B customers (e.g. multifamily, spas, hospitality, restaurants, employers, etc.) and identifying new opportunities to grow our B2B customer base.

Search term bingo: Sales, B2B, Biz Dev, Lead Generation, Growth, Funnel, Account Executive

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And a Marketing Manager / Marketing Associate:

As part of the Marketing team, you will play a major part in helping Rinse grow and become a household name. You’ll work cross-functionally with a strong team of product, design, and operational leaders, with significant agency and opportunity to have an immediate impact and lead meaningful, strategic growth initiatives.

Search term bingo: Consumer, Marketing, Growth, Paid, Organic, Social, Influencer, Analytics, Funnel

Interested? Email us as jobs@rinse.com, with the job title in the subject line.

Layer Health is an AI/ML startup spun out of MIT by David Sontag, leveraging LLMs to transform how clinical data is understood and used. Our systems are actively deployed in life science companies and major healthcare systems, providing an AI layer for our customers to make sense of their health data, and ultimately help positively influence patient outcomes. We're now exiting our seed stage after successfully raising our Series A and are building the team to meet the needs of our growing customer base.

Work Location: HYBRID in Boston (back bay) or NYC (grand central) Headcount: The software team is now 8 (~12 overall) Stack: mostly React + Typescript Frontend / Python Backend // GCP

Open Roles (note that all roles require a MINIMUM of 4 years of work experience) * Backend Engineer (Product & Infra) * Fullstack Engineer (Frontend/Product) * Data Scientist * ML Engineering / Research Engineering) * Product Strategy / RWE * Customer Success Lead * Chief of Staff

Email me at mike-c@layerhealth.com for more info!

Tech Stack: TypeScript | Rails | Postgres | Docker | React | LLM

About QumisAI: QumisAI is the only lawyer-built AI platform transforming insurance knowledge work. Our mission is to provide the most accurate AI solutions for the insurance industry. We are already trusted by five of the 15 largest U.S. insurance brokers, leading specialty carriers, and top law firms.

What We’re Building: QumisAI leverages cutting-edge technology to tackle complex challenges in insurance knowledge work. From fine-tuned LLMs to proprietary data pipelines, we are shaping the future of AI in the insurance domain.

Why Join Us? If you’re passionate about:

-Building at the Frontier: Work with LLMs, agents, fine-tuning, classifiers, data engineering/pipelines, and copilots.

-A High-Impact Role: Join a small, ambitious team with the autonomy to make a meaningful impact in a high-growth environment.

-A Career-Defining Opportunity: Shape the future of an industry while defining your own career path.

This is your chance to be part of a fast-paced startup with the stability of being backed by some of the most trusted names in the insurance and legal industries.

Compensation:

Base Salary: $125k–$200k Equity: 0.50%–1.50% Contact Us: If this resonates with you, let’s talk! We are looking for people with "Superpowers"—what are you uniquely the best at or aspire to be the best at? Email us your superpower, and let’s chat: shiv@

(No recruiters. Emails from recruiters will be automatically flagged as spam.)

We are building software to help landscapers design, sell and maintain beautiful spaces. Millions of acres a year are converted into urban dwelling spaces, and we want to help make them as beautiful and as ecologically friendly as possible.

Duranta as a company was founded early 2024. We are well funded and are expanding our team. We are looking for a talented & experienced graphics engineer. You will be the 2nd graphics engineer on the team and have the opportunity to shape the graphics architecture & make a significant impact on our company’s product and trajectory from the ground up.

Graphics Tech Stack: Typescript & Swift

If you're interested in working with us, please apply online. Mention you're from HN and let us know why Duranta is of interest and what you've been working on lately.

We are building AI agents for financial services. Today we help customers like Ramp, Betterment, and Upgrade along with US federally regulated banks.

Join us to serve enterprise customers and build with LLMs. We have plenty of interesting problems, room to grow, and fun.

https://www.ycombinator.com/companies/greenlite/jobs/9O9Rab4...

We scrape the internet for illegal content, flagging drugs, endangered animals, transaction laundering, IP infringement, and hundreds of other violations. We work for payment processors and marketplaces including Upwork, Faire, Patreon, Character.ai, Substack, and Eventbrite.

Your role: Application/Product engineering in Postgres/Typescript/AWS. We need web scrapers, agent workflows, and LLM eval tools. They all need to be fast and reliable.

SafetyKit is started by repeat founders, YC-backed, and growing fast.

https://www.ycombinator.com/companies/safetykit/jobs

At Tandem Health we're building a clinician copilot to allow clinicians to focus on care rather than administration. We’re building, launching and iterating quickly, and already have more than ~100~ 200 organizations using our product.

Our core product listens in to the patient-clinician encounter to generate medical records, allowing clinicians to save 5-10 minutes per patient. No longer do clinicians have to catch up on administration after hours. Some even tell us that their partners notice they're much more relaxed after starting to use our product, and we couldn't be happier :)

We’re expanding our Stockholm team with exceptional engineers! We use Python (backend), TypeScript/React (frontend) and C# (Windows app) and our infrastructure runs on Kubernetes in Azure.

Even if we don’t have a role out for your specific skill set, we’d love to talk! Our tech team is small but growing and you’ll have an outsized impact on an important problem.

More info at https://tandemhealth.ai

Feel free to reach out to john.moberg@tandemhealth.ai if you have any questions

We are building the ESG Suite, a B2B SaaS platform for ESG strategy management. We're hiring a Founding Full-Stack Engineer to help us design, implement, and scale our platform.

Responsibilities: Build APIs with Python (FastAPI), develop frontends with React/TypeScript, optimize data pipelines (Postgres, MongoDB), and deploy infrastructure on GCP/AWS with Terraform.

Requirements: Strong skills in Python, React, TypeScript, cloud platforms (GCP/AWS), and infrastructure-as-code tools.

Why Join: Own architectural decisions, work on meaningful ESG tech, and enjoy competitive pay + equity with remote or Munich flexibility.

About You: You thrive in dynamic startup environments, enjoy taking ownership of end-to-end solutions, and have a passion for building scalable, high-impact systems. You’re technically strong, collaborative, and motivated to create tools that address real-world sustainability challenges.

Email paolo.mazza@esg-x.com to apply.

CredCore helps companies analyze Credit Agreements using AI. Learn more at https://www.credcore.com.

We’re looking for someone to lead key engineering efforts. You should be good at modularizing and abstracting ideas, and be familiar with design patterns and software architecture. We're looking for (a) strong skills in Python and TypeScript, (b) experience working with Data Pipelines and tools such as Dagster, Metaflow etc, (c) ReactJS and/or other Front-end frameworks, (d) A good GitHub profile, blog, or other portfolio.

This is a full-time, remote role. If you’re interested, please reach out to me at jeswin@credcore.com.

MyAlloy is on a mission to revolutionize menopause healthcare for women over 40. Recognizing the lack of effective solutions for the 47 million women entering menopause annually, MyAlloy provides evidence-based solutions and expertise to help women feel fantastic during this phase of life.

Our small, in-house development team builds and maintains a marketing site, customer portal, internal apps, and backend systems to connect to our doctor portal, payment systems, and pharmacy fulfillment. You'll receive quite a lot of ownership, but we'll support you every step of the way.

* Mid to Senior Operational Support Engineer (2+ years experience) $110k-$140k

Working from within our Engineering team, you will be a champion for the tools and processes that drive the success of our technical and non-technical internal users. This includes:

- Managing and expanding tools built for our internal teams.

- Understanding, resolving, and automating away manual intervention tasks

- Identifying, triaging, and resolving bugs

- Bringing our alerting and monitoring strategies to the next level

We are excited to hear from "career-switchers" with substantial coding experience as well as reliability engineers, dev ops, and product developers with traditional experience on engineering teams.

* "Hands On" Front End Engineering Manager (6+ years experience) $150k-$190k

We are looking for a software engineer with significant experience in leading teams as well as building, deploying, and supporting substantial, live applications. In coordination with our Lead Front End Engineer, you will lead a team of talented developers in developing MyAlloy's Front End offerings. Some upcoming projects in 2025 include:

- Deeply integrating CMS tooling to allow internal teams dynamic, self-service authoring capabilities

- Design, implement, and release a mobile app

- Audit and improve site performance metrics (SEO, Accessibility, etc.)

The ideal candidate is someone ready to lead through example, and so we're excited to talk to folks ready to roll up their sleeves and dive into our codebase.

Tech: Typescript monorepo, React, Next.js, Node, Retool, Metabase, Postgres

lucas [at] myalloy.com - no agencies

We've built the world's best fine-tuning platform in just over a year. First to launch self-service preference tuning, integrated evals/data prep/fine-tuning, and self-service learning from human feedback.

Our customers range from fast-growing startups to Fortune 500s. We're growing 40% MoM and have achieved this with a team of just 5 engineers, including the founders.

Seeking:

- ML Engineers: Help advance our fine-tuning capabilities. (We have thousands of datasets and evals; testing new ideas is really easy!)

- Systems Engineers: Scale our platform serving hundreds of millions of daily requests

- Full-stack Engineers: Build end-to-end features in TypeScript/Python

Ideal candidates:

- Strong programming skills (TypeScript/Python)

- Systems architecture expertise

- Self-starters (founder/founding engineer experience valued)

- Willing to relocate to Seattle

Highly competitive salary + equity. Well-funded with large customers. Perfect for future founders wanting startup experience or engineers breaking into AI/ML with immediate impact.

Email: kyle@openpipe.ai Include something impressive you've built.

MixRank processes petabytes of data every month from web crawling. We have hundreds of customers using our data products including Google, Amazon, Facebook, Intel, and Adobe, across industries including Finance, Recruiting, Sales, Marketing, and Security.

We’re a fully-remote company with a global footprint in over 20 countries. We're growing, profitable, employee-owned, no dependence on outside funding. Applicants from all geographies and backgrounds are welcome.

We are looking for passionate individuals for whom programming is not just a job but it’s something they love to do. We're obsessed with computers, programming, big data, databases, compilers, hardware, math, data science, and the internet. Does this sound like you? Please apply to join our team.

Our code base is very friendly to new contributors. You'll have a fully-functional development environment within hours (fully automated) and be pushing commits on your first day. Deployments to production happen multiple times per day and finish in less than 2 minutes. Effectively all of our codebase is written in Python, Rust, SQL, Javascript/TypeScript, and Nix. The core technologies you'll need familiarity with to be productive are Python, PostgreSQL, Linux, and Git.

We operate at a larger scale than typical startups. We operate two datacenters with high performance servers we've built that are capable of dealing with the volumes of data we process. We've implemented our own distributed file system. We do full-scale web crawls. We download and perform static analysis on the entire universe of Android APKs and iOS IPAs that are published. Unlike a typical startup where you'll spend half of your time in meetings, and the other half fixing bugs from Jira tickets— at MixRank you'll get to challenge yourself with difficult technical problems that will help you to grow as an individual.

We're hiring continuously for the positions below— they aren't singular positions that will close once filled. Our philosophy on hiring is that the candidate is more important than the position. For each new member of the team, we design a custom role and responsibilities that are specialized to their interests. Other companies will come up with a long list of specific requirements for a position with the expectation that you'll exactly replace someone from the team, or that you'll be the perfect tetris piece that satisfies the job requirements decided by a committee. MixRank is more pragmatic: we'll first get excited about having a unique individual on the team, then we'll figure out the best way to accommodate their specific talents.

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Junior Software Engineer - Remote (Global), Full-Time

We're looking for remote junior engineers that have 0-3 years of professional experience in software, and 5+ years of curiosity exploring computers, programming, and technical hobby projects. This is an open-ended entry role with mentorship and diverse opportunities to work on all areas of our product: databases, distributed systems, infrastructure and tooling, data analysis, machine learning, frontend/backend web development, APIs, data mining, data modeling, and more. To stand out, please highlight what makes you unique: passion for computing, curiosity and side projects, work ethic, niche research, etc.

Ideally you've already graduated, but if you still have one or more years left of school, please feel free to apply anyway, and if you're the right fit for the team we'll figure out a way to accommodate your schedule.

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Software Engineer - Remote (Global), Full-Time

We're hiring generalist software engineers to work on web applications, data mining, machine learning/data science, data transformation/ETL, data modeling, database scaling, infrastructure, devops, and more. We'll cater the role to whatever subset of these areas match your interests.

Beneficial experience includes PostgreSQL, Python, Rust, Linux, TypeScript, Nix, frontend/backend web development, and data mining.

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Ex-Founders (all roles) - Remote (Global), Full-Time

We encourage founders in software engineering, sales, marketing, customer success, design, and product to reach out. If you don't see a relevant position open, reach out to jobs at mixrank.com. We care more about the person than the job position, and we're happy to craft the perfect position for anyone that joins our team. People with founder experience tend to be very successful at MixRank, and our leadership team is filled with founders.

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Applicants from Central America, South America, Europe, Asia, and Africa are especially encouraged.

I'm Scott, Founder/CEO/CTO. Please apply here: https://www.ycombinator.com/companies/mixrank/jobs