Oneleet (YC S22) | Multiple Roles | US & NATO Countries | Remote | Full-time

Oneleet is an all-in-one cybersecurity startup that has built its own Attack Surface Monitoring (ASM), Code Scanner, Device Monitoring, and Compliance Platform. We are growing at an unprecedented pace and working on some very exciting projects.

What we're looking for:

Strong problem solvers who can work independently in a remote environment - Security-minded professionals passionate about building robust, scalable systems - Comfortable working during Eastern Time

Tech stack: Go, TypeScript, React, Kubernetes

Open roles:

* Senior Software Engineer (Backend)

* Application Software Engineer (Endpoint Security)

* Security Program Manager (EU Timezone)

* Internal Security Compliance Auditor

* Technical Sales (must have background in Computer Science or Cybersecurity)

* Invoicing Coordinator

We offer:

- Competitive salary - Equity in a fast growing cybersecurity startup - 100% remote work - Company offsites every quarter (past offsites have been in The Netherlands and Italy)

If you're interested in joining our team, please reach out to samuel<at>oneleet<dot>com with the subject line "HN: <Job Title>". If you have already applied but haven't heard back, feel free to follow up on the thread, things have been super busy!

Alternatively, you can also apply at https://www.ycombinator.com/companies/oneleet/jobs

Prophet Town LLC | Full-Stack Software Engineer; also, Sales and Marketing | REMOTE (US) and Hybrid | English fluency required | Full-time | $150K-$250K annual total comp (multiple)

I’m the founder, trying to do “enlightened business.” We are a small, worker-first, fully-remote, SF-based, boutique indie tech agency. Our leadership staff are ex-Fortune 100; everybody codes. Notable recent projects: internal tools for Anduril, and voltagepark.com.

Applicants must meet a high bar; in return, I pledge my personal commitment to finding you interesting work and getting you good pay. You are free to submit again even if you have already done so in the past.

Engineers:

We are looking for Full-Stack Software Engineers with proficiency in React development, database design, devops, and third-party API integration. Tier3 roles are typically 5-10 y/o/e with $150-$175k annual total comp. Tier4 roles are 7-20 y/o/e, $210-$250k annual total comp. Higher tiers exist, and we welcome exceptional applications. Fully remote positions available.

Please apply using this Google Form: https://forms.gle/VQ7zEkNkzBZ4Wbas8. Applicants who submit before July 11 will receive a reply by July 18.

Sales and Marketing:

(seriously, engineers, please stop submitting here. you want the google form up above. If you email for the sales role, you'll get misprocessed and denied.)

Prophet Town is mostly engineers and TPMs; we’re lightweight on business majors :). I’ve done most of the sales for the company personally as the Founder. I am trying something new, and issuing a general RFP for folks interested in joining a nascent sales and marketing arm within Prophet Town. Learn our ~50 hire-out staff, and our recent projects, and help land the next million dollar build-an-app or staffing-gig contract, that provides slam dunk matches between Work and Workers. I do not believe in cold-calling or spamming. Also, please note that I am personally ex-Google, and helped run Adwords: I believe in science and data-driven sales and marketing, and want humble and academic bizdevs who postulate falsifiable hypotheses and minimize time and spend to prove hunches wrong (and expect to be wrong a lot!). Please send me a pitch, resume (pdf, attachment), and your preferred pay band and/or comp strategy, to hn-sales-rfp@ptown.tech. For emails sent by July 15, I will personally review emails, and respond before July 25.

Stellar Science | Hybrid (USA) Albuquerque NM, Washington DC (Tysons VA), Dayton OH | Full time, interns/co-ops | U.S. citizenship required | https://www.stellarscience.com

Company: We're a small scientific software development company that develops custom scientific and engineering analysis applications in domains including: space situational awareness (monitoring the locations, health and status of on-orbit satellites), image simulation, high power microwave systems, modeling and simulation, laser systems modeling, AI/ML including physics-informed neural networks (PINN), human body thermoregulation, computer vision and image processing, high performance computing (HPC), computer aided design (CAD), and more. All exciting applications and no CRUD. We emphasize high quality code and lightweight processes that free software engineers to be productive.

Experience: Other than interns, we currently require a Bachelors degree in physics, engineering, math, computer science, or a related field, plus preferably 3+ years of work experience or a Masters or PhD in lieu of work experience. (Roughly 30% of our staff have PhDs.)

Technologies: Mostly C++23, Qt 6.5-6.9, CMake, git, OpenGL, CUDA, Boost, Jenkins. Windows and Linux, msvc/gcc/clang/clangcl. AI/ML and other projects use Python, some use Java or Javascript/Typescript/React.

Apply online at https://www.stellarscience.com/careers/.

AI x Healthcare Startup | Boston, MA Onsite | Full-time | Early Engineer

We're looking for a backend-leaning fullstack dev. You will be one of the first engineers outside of the founding team. Here is a bit more about us: We're a seed stage AI startup backed by several top tier VCs. We're on a mission to ensure patients get the coverage they deserve from their health insurance.

We’re building deep, vertically integrated technology systems to solve fundamental problems in US healthcare - the biggest market in the world ($5T). We use AWS, K8s, React, and Rust but there is no requirement to have prior experience with them specifically. We'll teach you!

We are a founding team made up of ex-YC, Amazon, Meta, Microsoft, and Harvard Business School with previous successful exits. We have a 6+ month customer waitlist and growing insanely fast.

We're hiring our first engineer outside the founders. You'll work directly with customers to understand their needs, design the right solution, and build from zero to one. You'll own entire parts of the roadmap and tech stack while wearing multiple hats. Most important characteristics are resilience, work ethic, and curiosity. We care about slope, not where you are today.

This is an opportunity to work in an insanely fast paced, high ownership environment while solving real problems in healthcare.

We're happy to share more details on the role in person/on zoom. Please fill out this form if interested!

https://wgwx7h7be0p.typeform.com/to/LV0t8OjI

Baton| Senior Full Stack Engineer | HYBRID |San Francisco, CA | Full-Time

Baton is building software to automate the $800B+ freight industry. We’re a small, fast-moving team inside Ryder (Fortune 500 logistics company), rethinking how freight moves with real-time visibility, automation, and AI.

We're hiring a Senior Full Stack Engineer to work across our Python/FastAPI + React/TypeScript stack. This is a hybrid role (Tues–Thurs in our Hayes Valley SF office). You'll own major projects across the stack, collaborate cross-functionally, and shape tools used at national scale.

What we offer:

- $200,000 – $250,000 base + bonus + long term cash incentives - Startup speed, enterprise scale - Modern stack (FastAPI, GraphQL, Postgres, AWS) - Perks: 401k match, ESPP, great office

Apply at: https://job-boards.greenhouse.io/baton/jobs/4623804007

TensorZero | https://github.com/tensorzero/tensorzero | Founding Member of Technical Staff | NYC (onsite) | Full-time

TensorZero is an open-source stack for industrial-grade LLM applications. It unifies an LLM gateway, observability, optimization, evaluation, and experimentation.

Open Roles:

‣ Back-end Engineering (Rust)

‣ Design Engineering

‣ Developer Relations (DevRel) Engineering

‣ Front-end Engineering (React)

‣ Product Engineering (Full-Stack)

What we offer:

‣ Vast majority of your work → open source

‣ Years of runway

‣ Small and entirely technical team: former Rust compiler maintainer, ML researchers (Stanford, CMU, Oxford, Columbia) with thousands of citations, decacorn CPO

‣ $200-300k base + up to 1% equity + benefits

‣ Onsite (5 days) in New York (Williamsburg, Brooklyn)

More information: https://tensorzero.com/candidate-brief

Apply: https://www.tensorzero.com/jobs

SerpApi | https://serpapi.com | Junior to Senior Fullstack Engineer multiple positions | Customer Success Engineer | Hiring Coordinator | Python/Ruby/PHP/Js/Rust/Cotlin/C#/Crystal/Nim/Elixir Developer Advocate positions | Based in Austin, TX but remote-first structure | Full-time | ONSITE or FULLY REMOTE | $150K - 180K a year 1099 for US or local avg + 20% for outside the US

SerpApi is the leading API to scrape and parse search engine results. We deeply support Google, Google Maps, Google Images, Bing, Baidu, and a lot more.

Our current stack is Ruby, Rails, MongoDB, and React.JS. We are looking for more Junior and Senior FullStack Engineers.

We have an awesome work environment: We are a remote first company (before Covid!). We do continuous integration, continuous deployments, code reviews, code pairings, profit sharing, and most of communication is async via GitHub.

We value super strongly transparency, do open books, have a public roadmap, and contribute to the EFF.

Apply at: https://serpapi.com/careers

Hello Prenup | Software Engineer | REMOTE (US timezones) | Full-time | https://helloprenup.com | $90-130k + Equity

We are driven by our mission to help every couple get on the same page before marriage. We're disrupting an archaic industry in the law space. With our product market fit already in place, we’re poised to accelerate our growth.

We are seeking a capable Software Engineer to work on our growing engineering team. You'll work directly with customers and our stakeholders to drive impact, as well as take ownership of the delivery of end to end features on our platform.

We're looking for someone with Typescript, React, Node, and PostgreSQL skills to help lead implementation and drive innovation who also cares deeply about the customer and user experience.

Our tech stack: TypeScript, React, Node (Hono), PostgreSQL. All on Serverless AWS.

We are a fully remote team across the US and offer competitive compensation, paid for health insurance, and 401k benefits. We have a collaborative work culture that thrives on ambiguity and problem solving.

If you're interested email sam at our website, and mention hn in the subject.

Better | Hybrid in NYC | Full Time

Seeking Senior Engineers for our Marketplace and AI teams.

On Marketplace, you will be responsible for creating and maintaining all things related to pricing & eligibility of loan files. Tech: React, Go, Node, Lambda

On our newly formed AI team, you will be responsible for creating and maintaining our AI agents available via voice and chat, as well as building new internal automation flows. Tech: OpenAI, Twilio, Node, React, k8, and more

https://jobs.lever.co/better

CVector | Full Stack Software Engineer; UI/UX Designer | USA | REMOTE | Full-time | $75k/yr + 0.3% – 1%

CVector builds software to make energy systems smarter, more reliable, and autonomous. We integrate real-time data visualization and analytics to help power generation stations, chemical plants, and other critical infrastructure make informed decisions in rapidly changing environments. You'll help create intuitive, robust web apps and backend systems, shaping tools that directly impact industrial operations and energy reliability.

Remote-first team with occasional domestic travel to connect with users directly. Recent graduates may need to relocate.

Full Stack Software Engineer: We're looking for a passionate Full Stack Software Engineer comfortable working across our stack (Python, Typescript, React, Supabase, MQTT, Kafka, TimescaleDB, PostgreSQL, AWS).

UI/UX Designer: Explore the solution space for how users will interact with our app, and help us communicate more clearly with our customers and investors.

Reach out to me at jnapoli+hn@cvector.energy

Myndstream | Hybrid London, UK | Full time | https://myndstream.com

Music for health and wellbeing - we're working with leading scientists at MIT, NYU and UPenn alongside a roster of composers to create validated music to improve health and wellbeing.

We are on course to enhance the effectiveness & efficacy of our music through the use of ML. We've started with hospitality as a launchpad and are now moving into healthcare markets.

Core Stack: TypeScript, Rust (for low-level audio work), React, PostgreSQL, WebSockets, GCP

If you are enjoy ownership, autonomy, design patterns and are a pragmatic generalist then you will enjoy it here.

Hiring Founding Software Engineers in London, UK, - contact me via email: will [at] myndstream.com

Archera | Senior Data Engineer | REMOTE (US/Canada) or Hybrid (Seattle) | Full-time

Archera empowers organizations of all sizes to optimize their cloud costs through unique, short-term, insured GRI (Guaranteed Reserved Instance) and GSP (Guaranteed Savings Plan) commitments.

We’re looking for a Senior Data Engineer to build and scale the data backbone of Archera’s cloud cost optimization products. This role focuses on architecting large-scale data pipelines that process cloud billing and usage data across AWS, Azure, and GCP. You’ll work across OLTP and OLAP systems to ensure our data infrastructure is performant, reliable, and purpose-built for FinOps. Your work will enable accurate cost modeling, insights, and automation that directly power Archera’s cloud rate insurance platform.

Stack: Python (SQLAlchemy, Flask), TypeScript (React), PostgreSQL, Snowflake, Argo Workflows, k8s, AWS/GCP/Azure

Benefits: RRSP/401k match, healthcare, stock, wework/home office expenses.

Apply: https://job-boards.greenhouse.io/archera/jobs/4788177008 and email me at simon+hn <at> archera <dot> ai

Datadog | Software Engineers | ONSITE (Boston, Lisbon, Madrid, NYC, Paris, Tel Aviv) | Full-time

Datadog is a monitoring, tracing, logs system, and more, for your infrastructure and services. We build our own tsdb, event store [1][2], distributed tracing tools, cutting edge visualizations, and more. We love shipping great experiences for customers just like us and are growing fast! We write a lot of Go, Java, Python, Typescript (with React), and a bit of other languages. We run on k8s, and are multi-region and multi-cloud.

We're looking for people who can build systems at scale as we process trillions of events per day. Let us know if that's you!

https://dtdg.co/hnwhoshiring

[1] https://www.datadoghq.com/blog/engineering/introducing-husky

[2] https://www.datadoghq.com/blog/engineering/husky-deep-dive

Artificial Analysis | https://artificialanalysis.ai | Full Stack Engineer & ML Engineer | Onsite in San Francisco or in Australia/New Zealand | Competitive Salary + Equity

Artificial Analysis is an independent AI benchmarking and insights provider. Our benchmarks help engineers and companies understand AI and make informed decisions on AI technologies.

We are hiring for two roles:

1. Full Stack Engineer: Full Stack Engineer to support our benchmarking of AI and with communicating these benchmarks to our users. Proficiency in Typescript & Python required. Familiarity with LLM APIs preferred.

Tech stack: Javascript/Typescript, Node.js, React/Next.js, Python.

2. ML Engineer: ML Engineer to support our benchmarking and evaluation of AI software stack. You will design and run benchmarks and evaluations of different AI models.

Strong analytical skills and proficiency in Python required.

Apply at hiring (-at-) artificialanalysis.ai with your resume, github and dot points on relevant experience.

New Lantern | https://newlantern.ai | Software engineers (infrastructure engineers & backend-leaning product engineers) | Full time in San Francisco, CA (ONSITE)

New Lantern is hiring software engineers to help build an AI copilot [1] for radiologists.

Radiologists are experts at diagnosing disease in medical images, but they spend the majority of their working hours on tasks that have nothing to do with diagnosis: reading prior reports, transcribing handwritten notes, taking manual measurements, dictating reports, and chasing down follow-ups. New Lantern is building an AI copilot for radiologists to automate this non-diagnostic work, so radiologists can focus on the diagnostic & patient care work they love the most.

We are starting to find product-market fit and recently raised a $19M Series A from Benchmark [2]. Demand for our product is growing, and we're hiring software engineers in San Francisco to help us scale our product and our team. We work together in person five days a week from our office in Jackson Square.

Engineering is at the heart of New Lantern. Our engineers work directly with our founder/CEO, our staff radiologist, and our end users to build features that radiologists rely on daily. Everyone has real ownership and autonomy, moves quickly, and ships meaningful work frequently. We're a small, sharp team of frontend, full-stack, and backend engineers building a React-based web app backed by Python services, cloud infrastructure, and LLMs.

We're hiring for several engineering roles but top of mind right now is a Senior+ (ideally Staff-level) Infrastructure Engineer. We're looking for someone who's excited to help our team go from 0.25->1 on observability, availability/reliability, and scalable & easily deployed infrastructure to help us grow to meet customer demand. Once we level up our infrastructure, this team member will be instrumental in helping us build towards very high availability and reliability systems that enable high product development velocity.

I'm Steve, New Lantern's Head of Engineering. If you're interested or want to learn more, shoot me a note at (my HN username)@newlantern.ai.

[1] We translate "AI copilot" to "AI radiology resident" when we speak with medical professionals, but the former is the clearest way to communicate what we're building here.

[2] https://newlantern.ai/blog/new-lantern-19m-series-a-led-by-b...

Gentrace | TypeScript + React | Hybrid (Williamsburg, Brooklyn & San Francisco)

Gentrace helps the most impactful companies in the world like Quizlet systematically test and evaluate their AI applications. We recently raised an $8M Series A from Matrix Partners.

Ideal candidate profile: - We use TypeScript and React heavily. Although not required, we prefer candidates with strong experience with modern web technologies. - 4+ years experience working in a full stack capacity. Role info: https://gentrace.ai/eng Email: jobs@gentrace.ai

VersaFeed.com | SENIOR SOFTWARE ENGINEER (Python/Django) | REMOTE (USA/EU) | Full-time

About us: Fancy ETL pipeline which processes products from huge ecommerce companies. Data extraction and massage, delivery to destinations like Google/Meta/TikTok/etc. Profitable, 15+ yrs stable, 100% employee-owned. No VC, no pointless meetings, just serious coding.

Stack: Python/Django, JavaScript, VueJS, PostgreSQL, Snowflake, Docker, Git, AWS, AI/LLM integrations (OpenAI & Gemini).

Compensation: $150K–$250K USD/year DOE.

You: Senior dev who's seen (and fixed) enough dumpster-fire code to last a lifetime. Python/Django deeply internalized; ideally Vue (or React) skills as well. Git/Docker/REST are second nature. You’re the coder other devs come to when their stuff breaks: an architect-level thinker who’s rewritten ‘clever’ code into something that actually works. You play well with others and write code that’s easy to live with. Bonus: AI integrations, Py2→Py3 migrations, Snowflake (or Databricks) experience.

Timezones: Primary time zone is PST (some standups at 9AM PST). Otherwise async-friendly.

Benefits: 401K match (USA), healthcare, equity, fully remote. Stable company with no time-wasters.

Apply: email jobs+hn252 [the-at-mark-thing] versafeed [the-period-thing] com

Fairwater Labs | Founding Engineer / Technical Product Co-Founder for AI content generation Dual-Use Startup focused on workforce attention and engagement | Remote (US-based) | Full-Time | Competitive salary and significant equity | US authorized only

Help us reinvent how US + partner military and civilian teams leverage AI to maximize attention and engagement onto the most important and evolving needs. We’re building an AI copilot that enables leaders to move away from sending emails that go unread, and towards more engaging, habit-forming, and micro / repetitive content means to emphasize most essential priorities, and align workforces dealing with high-risk environments, disruption, and transformation.

Why join now? Backing from a dual‑use venture studio with multiple exits and in‑house DoD BD expertise.

Validated user stories, early wireframes, and early potential users are ready—your code ships to real operators fast.

Co-Founder CEO, with background in driving go-to-market, is still in the process of being sourced and recruited, so you would be a part of that process of early company and founding team formation.

What you’ll do Own the end-to-end architecture & tech / product roadmap – choose the stack, design data pipelines, secure cloud infra, and front-end.

Iterate on prototypes right away with the Fairwater Labs team, and join in the next phase of customer discovery.

Then, when the GtM Co-founder is in place, work together (and with Fairwater team support) to build the MVP, ship weekly releases, then hire and lead a small, AI-leveraged team.

Co-shape product decisions with DoD users and early commercial adopters.

You Highly experienced full-stack/ML/AI engineer who can explain and defend tool choices (e.g. Python, TypeScript/JavaScript, React, LangChain, vector DBs, CI/CD, IaC).

Proven track record shipping production LLM / AI tools for content generation, and/or mobile applications that get to high-frequency use (daily, habit-forming) Comfortable with DevSecOps and data security (familiarity with GovCloud/IL4+ a plus).

Entrepreneur at heart—show us something you’ve built that shipped fast. Send a brief intro (or resume if you have it) + GitHub/portfolio to jeff@fairwaterlabs.com.

40GRID - Full-time Remote | Senior React Native Mobile Engineer

Our mission is to empower field-service companies to grow by modernizing and automating their business operations. Every company we work with has unrealized potentials — our task is to build the platform that empowers growth and helps them unlock opportunities.

Email: jobs [at] 40grid.com (no recruiters or agencies, please put HN in subject line, thanks).

Tech: React Native

DuckDuckGo | Multiple Roles | Remote | Full-time | $178.5k + equity

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted.

Most of the software engineering positions have been repeating here for years because we've been continually hiring for them, scaling our whole team to now over 300 people—many of those hires have come through Hacker News. We've been improving our hiring process over time, and we know some good candidates may have fallen through the cracks. Some people who tried in the past have had success going through it again, and we still pay for hiring projects.

Senior Software Engineer, Windows Desktop App - $178,500 USD + equity — https://jobs.ashbyhq.com/duck-duck-go/47e569c6-f995-4955-a89...

Senior Android Engineer - - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/57eea673-2519-4afc-a9a...

Senior Backend Engineer - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/abb953ee-5bb7-4637-9f6...

Product Designer (Senior, Lead or Principal) $178,500 - $243,800 USD + equity https://jobs.ashbyhq.com/duck-duck-go/06c4084f-8044-4837-b1d...

Senior Frontend Engineer, React/Typescript - $178,500 USD + equity https://jobs.ashbyhq.com/duck-duck-go/5d3e230c-ecf4-407a-a3a...

https://duckduckgo.com/careers