Newtwen | Backend & Cloud Platform Engineer | REMOTE (EU) | Full-time | €70k–€90k+

Newtwen is building a cloud platform that brings complex physics and data-driven intelligence directly onto microcontrollers, generating ultra-fast runtime firmware that executes in just a few microseconds.

We're looking for a Senior Backend & Cloud Platform Engineer to help architect and build our first production-grade cloud backend from the ground up. You'll own backend services and computational pipelines spanning 3D geometry processing, mesh generation, model order reduction, calibration and neural network training.

A core part of the platform is dedicated to data-driven modeling, with a specialized neural-model library designed to make physical models adaptive in real time.

You might be a good fit if you have: strong production backend/cloud experience, Python (FastAPI or similar), relational databases, Docker, cloud infrastructure (GCP preferred), CI/CD and IaC — and enjoy making architecture decisions rather than just implementing tickets.

Location: REMOTE (EU), with the option to work hybrid in Italy Compensation: €70k–€90k+, depending on experience

Apply: career@newtwen.com — mention Hacker News and include your LinkedIn/CV and, if available, GitHub or project links.

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

We are an AI engineering company that builds end-to-end AI 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/en/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 and help bring application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).

Open roles include:

• Senior AI Engineer

• Senior Software Engineer

• Medior AI Engineer

• Squad Lead GenAI

and many more!

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

Loft Orbital | Senior Cloud Infrastructure Engineer (SRE) | Golden, CO or San Francisco, CA | $180k–$240k + equity | https://loftorbital.com

Loft builds and operates shareable satellites so customers can fly a payload without building a spacecraft. We integrate, launch, and operate the mission end to end: Earth observation, IoT, on-orbit AI, national security. 30+ missions flown since 2017, fleet on track for 30 satellites by 2027, offices in SF, Golden, and Toulouse.

Our Cloud Infrastructure team runs the ground segment that talks to the fleet. This is an SRE role with a twist: we apply DevOps practices to spacecraft control (we call it SatDevOps), and we'll train you to operate the satellites.

What you'd own: - Hybrid cloud infra on GCP + Kubernetes: provisioning (IaC), CI/CD, GitOps (ArgoCD/Flux) - The observability stack (Grafana, Prometheus, Loki, tracing) across ground and flight systems - Reliability: RCAs, fault tolerance, performance tuning, long-term fixes over patches - Software-defined networking between ground stations, cloud, and mission ops - Developer experience: tooling and environments for the flight software and ops teams

Looking for: strong public cloud (ideally GCP), deep Kubernetes, one backend language (Go/Python/Rust/C++/Java), IaC + CI/CD in anger, and someone who can design HA systems and then run them. Nice to have: FinOps, security tooling, orchestration in resource-constrained environments.

Benefits: 100% company-paid medical/dental/vision for you and dependents, 401(k) + equity, flexible PTO + 12 holidays, 14/10 weeks paid parental leave, daily catered lunch, relocation assistance, and time with the team in France.

Apply: https://jobs.lever.co/loftorbital/3ae5c3e3-c1e0-4311-83b5-0b... and mention HN in your application.

Anterior | Software Engineers | NYC | Onsite | Full Time

Anterior is improving the experience of healthcare for everyone. Our agentic orchestration platform makes clinical decisioning frictionless for RNs and MDs.

About You: You have a passion for doing things The Right Way, you believe Less is More, you want to focus on Foundations of system design and architecture (pacelc, consistency guarantees), you care as much about what code you do not write, you’re tired of the hype treadmill and care about the fundamentals. You have battle scars from overengineered and underperforming slop, and you care about writing code that lasts.

- Langs: TS / Python - Infra: Nix, CDKTF, AWS

We’re hiring from infra to full stack. Come share your proudest firefighting story with us in an interview, bring your GitHub, and let’s see if we’re a good fit!

Dev log: https://xn--xp5a.anterior.app

saul@anterior.com

Virtasant (1099 contractor for a client of ours) | Virtasant.com | Remote (USA)| full-time

Hey, we are a finops/cloud optimization company that also helps some of our clients with their hiring needs. For one of them (a solid healthcare data company) we're looking for a Senior Data Engineer.

The legal stuff: You need to live in the USA and be under one of the following conditions: a) US citizen b) Green Card holder c) Sole owner of your own LLC company (not co-owner, sole owner)

Sadly, all other options are not possible, like H1B, OPT, EAD, or CPT visas, are not possible for us.

80-90 USD per hour, changes of going a bit above if the candidate is amazing.

The tech stuff: 7 yoe (5 of which building production-grade data or platform services), AWS-heavy (if you're stronger on Azure or GCP, then it's not for you, sorry), Python, SQL, dbt, (Snowflake OR BigQuery OR Redshift), Spark, Kafka, (Iceberg OR Delta OR Hudi), (Airflow OR Dagster OR Prefect), CI/CD, Docker, AWS.

Here's the JD, where you can apply - https://virtasant.teamtailor.com/jobs/7563920-senior-data-en...

Thank you!

Pathos AI | Senior Software/AI Engineer + DevSecOps Engineer | NYC, ONSITE 3-4 days/wk | Full-time | $180-200K + equity | VISA (transfer only)

Pathos is building Foundry, an AI-native platform pairing the largest foundation model in oncology with 200+ petabytes of multimodal patient data. Backed by a $365M Series D; pipeline now spans 4 clinical assets, including new licensing deals with AstraZeneca and Alphamabs. Small teams of 2-4 experts orchestrate hundreds of AI agents. NY-based candidates preferred. https://pathos.com

Senior Software/AI Engineer: build AI agents/copilots for BD, clinical, comp bio, and lab teams, MCP-style servers, pipelines into a governed knowledge graph. ~6-8+ years, Python + TypeScript, shipped LLM workflows to production (LangGraph), own services end-to-end.

DevSecOps Engineer: own security architecture for AI agent infra — threat models, agent permissioning, secure CI/CD, detection/IR for AI-native threats, HIPAA-aligned data governance. ~6+ years security eng, GCP, IaC, hands-on incident response.

Apply: chris.poshka+hn@pathos.com — one sentence on relevant production work you've shipped.

DualEntry | Full-time | REMOTE & ONSITE (NY)

We build the first AI-native ERP OS. Competitors measure customer migrations in quarters, we offer Day-One data migration.

Backed by Google, Lightspeed and Khosla with a 90M series A, we're building a team of outliers. The people who raise the bar. The builders. The ones who move fast and consistently do exceptional work.

It's high ownership, greenfield work and many of our roles are first hires. You'll grow along with the product and the team.

ROLES

-- Engineering Manager [First Hire] (NY, ONSITE) $250K – $375K + Equity * Why Join?* Greenfield work building reporting structure and architecting systems as we scale 100-1k in the next 6 months

-- Lead Mobile Engineer (React Native / Expo)[First hire] REMOTE (LATAM,Canada, EU, India) $120k - $180k + Equity * Why Join? * Beta app, yours to build from the ground up and set the trend for what ERP apps will look like.

-- Applied AI Engineer (NY, ONSITE) (Typescript / Python / Posgresql) [First Hire] * Why Join? * 4 engineers to work with minimal supervision building features directly for named customers. Reduce our time to ship from days to hours.

Email ivanc@dualentry.com with your CV/LinkedIn and "Hacker News" + Role in the subject line

We will respond to every email that includes all this info.

Amplify Renewables | Quantitative Researcher | SF / Seattle / US | Hybrid (Remote Possible) | Full-Time | $200k - $375k (all cash) | https://www.amplifyrenewables.com

We're a systematic energy trading company trading virtuals and PTPs across the US. We are hiring a mid-level quantitative researcher; the ideal candidate is process oriented and has a team-first approach. You would work closely together with the founders to build out our expansion in the US with focus on PJM. Our team is ex-D.E. Shaw, Optiver, and Stanford. We're bootstrapped, profitable, and growing. Compensation is all-cash and paid from company profits, not venture funding.

What we're looking for:

- 3+ years of experience trading virtuals/PTPs/FTRs on US ISOs (experience with PJM strongly preferred)

- Fluent Python skills (e.g. numpy, matplotlib, pandas, or similar)

- Fluency with statistics (e.g., sampling, biases, t-stats)

- Crisp written communication — we're deep-work focused and async-heavy

Nice to have: experience with LLM-assisted development, experience building quantitative trading algorithms

Hybrid, based in San Francisco or Seattle. Fully remote US-based exceptions can be made if the candidate is a particularly strong/good fit. Candidates are expected to work in person 3 days a week.

Apply: email hiring@amplifyrenewables.com with resume + an (optional) short note on a research project you’ve owned end-to-end; we’re interested in how you generated the idea, tested it, communicated to others, and implemented it. Please mention HN.

Search terms: quantitative trading, energy, power markets, ISO, forecasting, electricity, PJM

Discord | Senior Software Engineer, Application Security | San Francisco, CA | ONSITE | $280K–$330K TC

Discord is where communities and friend groups spend time together, on desktop, mobile, and now more and more inside games and third-party apps built on our platform. That surface area, plus a huge, engaged, occasionally adversarial user base, makes application security a genuinely hard and interesting problem here.

We're hiring a Senior Application Security Engineer to join the Product Security team. Responsibilities include threat modeling and secure design review with product and platform teams, building and improving AppSec tooling (SAST/DAST/dependency scanning), and working directly with engineering teams to remediate findings.

Stack: Python primarily, some TypeScript/React, some Rust, occasional JavaScript. Runs on GCP.

Looking for: hands-on AppSec experience (not just compliance-flavored security), comfort reading and reviewing code across languages, and sound judgment on prioritizing real risk over checklist security.

Interview process: recruiter call, coding round, HM interview, virtual onsite, decision.

Apply: https://job-boards.greenhouse.io/discord/jobs/8656854002

We're building a unified platform for credit and financial data to power financial inclusion globally. Our mission is to unlock economic opportunities for consumers historically excluded from traditional credit systems by transforming diverse data into actionable risk insights. We are YC company backed by investors from Canapi Ventures, Kleiner Perkins, General Catalyst, and Index Ventures

-> Hiring software engineers from Senior to Staff, Product, and Design roles. -> Tech stack: Node.js, React, TypeScript, Python, PostgreSQL, AWS

You'll work on enterprise-grade APIs, data integrations, advanced analytics, and seamless user experiences. We're looking for engineers who thrive in fast-paced environments and want to make a meaningful impact on financial inclusion.

Apply at https://job-boards.greenhouse.io/novacredit and mention HN.

Astoria AI | Founding AI Engineer — Agentic Systems | Remote (async) | Full-time | Equity-only pre-seed, $190k-$280k + equity post-seed

Astoria AI is building an agentic runtime for human potential — a suite of specialized AI agents serving candidates and companies across the entire hiring and talent lifecycle: career strategy, networking intelligence, verified matching, compliance-native hiring, onboarding, and retention.

The hiring market is structurally broken: 44% of resumes contain fabrications, ATS filters reject 88% of qualified candidates, and 27% of posted jobs are ghost jobs — while regulation (EU AI Act, Mobley v. Workday, FCRA suits) is forcing enterprises to rethink hiring AI. We're building the fix.

You'll own the intelligence layer: LLM-powered agentic workflows (tool use, structured outputs, multi-step orchestration), RAG/retrieval pipelines, lightweight ML for classification/ranking/entity matching, and evaluation loops for hallucination risk and output quality.

Looking for: 6+ years professional SW engineering (Python/TypeScript/APIs/DBs), hands-on experience with LLM APIs and agentic workflows, and ideally RAG/embeddings/vector DB experience beyond basic chatbots.

Stage: pre-launch, pre-seed, founding team, equity-only until seed round closes (~4-6 months), then competitive salary + refresh grants.

Apply: Konstantin.mueller@astoria.ai

Balerion AI | Software + FDE + AI Engineers | San Francisco, CA | ONSITE | Full-time | $250k+ base + seed equity | Visa sponsorship available | https://balerion.ai

We're building agentic AI for mortgage lending — automating document processing and income qualification for loan originators.

Underwriting a loan means pulling numbers out of a few hundred pages of paystubs, W-2s, bank statements, and tax returns, then applying underwriting guidelines that run to thousands of pages of edge cases. Most of it is still done by hand.

Problems we actually work on: routing scanned pages to OCR vs. text extraction when the text layer is unreliable; extraction pipelines where a wrong number is much worse than a missing one; running long agent workflows durably so a failure three steps in doesn't restart the whole loan; and evaluating multi-step output against guidelines that are themselves ambiguous. We put real effort into eval infrastructure, because "the demo looked good" does not survive contact with a lender's compliance team.

Stack: Python, PydanticAI, Restate for durable execution, Postgres, AWS. Frontier models from OpenAI and Anthropic plus open-source models where they win on cost or latency.

We raised an $8M seed led by Kleiner Perkins and have paying customers in production. Team previously at Snowflake, PayPal, Twitter, Atlassian, and Microsoft.

Comp: $250k+ base, meaningful seed-stage equity, 5% 401(k) match, full health coverage, commuter stipend, gym membership, daily office breakfast & lunch. Full relocation to SF covered.

Onsite in SF. Visa sponsorship: yes.

Email vishal@balerion.ai with "HN" in the subject, plus a resume or GitHub.

Solution Street | Northern Virginia / Washington DC Metro Area - REMOTE (US), HYBRID & ONSITE roles available - USA only. We are a software consulting company based in Northern Virginia. Our Website: https://www.solutionstreet.com/ Interested? Apply on our Careers Page (Make sure to mention you found our post on Hacker News): https://solutionstreet.com/join.php

Current Opportunities: - Java Engineers All levels: (Hybrid Chantilly, VA) Seeking all levels of full stack Java engineers with experience in Java, Spring and Kubernetes.

- Automation Testers Lead/Senior and Mid Level: (Hybrid Chantilly, VA) Experience with Javascript and WebdriverIO. Must be comfortable coding in Javascript.

- Full Stack Python Developer: (ONSITE Dulles, VA)

- Automated Test Engineer - Electrical Engineering: (ONSITE Dulles, VA) Contract role for 1.5 years. Skills and Qualifications: Experience in Python programming; Electrical Engineering experience; Python - async-io cooperative multitasking; State machines; SCPI equipment such as Keysight or Keithley

RINSE | REMOTE or San Francisco, Los Angeles, Chicago, Boston, New York City, New Jersey, Seattle, Austin, Toronto, or Washington DC | Software Engineer | Full-Time | Salary: $80k-$200k USD | https://www.rinse.com

Rinse provides dry cleaning and laundry delivery services to customers in twelve metropolitan areas in the US and Canada. 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. We're also seeking engineers with experience leveraging AI to automate complex operational processes.

This season, we're particularly interested in new grads or junior engineers, to round out the team.

You will join a high-caliber team where collaboration, honesty, and open communication are at the core of everything we do.

Search term bingo: Logistics, Django, Python, Optimization, React, React Native, Postgres, Mobile Engineer, Automation, Delivery, OR-tools, Forecasting

--- also ---

RINSE | ONSITE in San Francisco, Los Angeles, Chicago, Boston, New York City, New Jersey, Seattle, Austin, or Washington DC | IT Associate | Full-Time | Salary: $60k-$120k USD | https://www.rinse.com

Rinse provides dry cleaning and laundry delivery services to customers in twelve metropolitan areas in the US and Canada. 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.

We'd like to add to our growing IT team, managing networks and endpoints across a dozen sites and hundreds of employees. This team is embedded into the engineering organization and is intimately involved in R&D efforts as well as supporting our corporate functions. We're largely cloud-based, with a meaningful MacOS and Linux fleet and a bit of on-premises hardware. We're leaning into an AI-supported IT function; we expect you to be making forward progress, not simply responding to tickets.

Because this role has some physical hardware responsibilities, we'd prefer it be filled by someone in the above localities, even though the vast majority of the role can be performed remotely.

You will join a high-caliber team where collaboration, honesty, and open communication are at the core of everything we do.

Search term bingo: Help Desk, Information Technology, LAN, Networking, MDM, Mobile Device Management, Systems Administration, Network Administration, Security, Cloudflare, Systems Engineer

Factory | Security Engineer | Onsite in San Francisco | Full-time

Come work on my team! (We’re hiring lots of engineers right now, but I’m biased toward my own group today.)

Factory builds software development agents that accelerate the world's largest enterprise engineering teams. We're helping customers including Nvidia, Adobe, Adyen, Klarna, and Ernst & Young turn their engineering organizations into autonomous development systems — shipping code, reviewing PRs, running tests, and deploying continuously.

We're seeking a talented Security Engineer to join our team. In this role, you will play a critical role in developing and maintaining the security foundation of our platform. You will conduct in-depth code reviews, implement security best practices, and influence the overall security strategy. Your expertise in TypeScript, Python, Kubernetes, CI/CD, and terraform orchestration will be crucial in identifying and mitigating potential security vulnerabilities.

Software Engineer, Security: https://factory.ai/careers/software-engineer-security

Other roles: https://factory.ai/company#careers

Sunspell | Founding Engineer | New York, NY | ONSITE | Full-time | https://sunspell.fm/careers/founding-engineer

Six-person venture lab in New York. We build our own products. A studio arm does client work, is profitable, and pays for the rest.

Our founder ran her own design studio and was the founding design partner on Partiful, on Sentropy before Discord bought it, on Goldcast before Cvent, on Make before Celonis, and on Descartes Labs. She builds here now instead of for other people.

You would own the production application around our intelligence layer. Architecture, frontend, backend, Postgres, durable execution state, retries and idempotency, permissions, deploys, and the data-heavy interfaces people work inside all day: tables, relationships, filters, history, approvals. React and TypeScript at depth, Node or Python behind it. We write a lot of MCP servers and build with Claude Code daily.

Seven-plus years shipping, hands on code within the last year. Design and engineering sit in the same room here. There is no handoff.

Most people who apply like the words "founding engineer." We are looking for someone who has already started something of their own.

Ownership. You should own a piece of what you build here. We are not going to post a percentage, because the honest answer depends on what you end up carrying, and we would rather work that out with you than hand you a number that pretends to be precise. It is a conversation, it is flexible, and we intend it to be fair.

We are six people. Nothing you build goes through a committee before it ships. Nothing you break, you fix alone. We are a tight team today and we are looking to double it by the end of the year.

Please send your resume or GitHub, plus the most ambitious thing you have built mostly on your own. Rough work that worked beats polished that never shipped.

If this is not you but a name comes to mind, please pass it along. :)

GovStar | https://www.govstar.us | Remote (U.S. — Eastern/Central Time) | AI, Full Stack, Frontend, SRE & Cloud Automation | U.S. Citizens

GovStar is hiring 5 engineers to help build secure, production-grade AI and advanced analytics capabilities supporting U.S. national security missions.

• AI Engineer — AI/ML engineering; Python, LLMs, RAG, embeddings/vector retrieval, orchestration, evaluation, guardrails, Azure AI/OpenAI.

• Full Stack AI Developer — Python + React/TypeScript; secure APIs, AI-enabled applications, enterprise data integrations, Azure, CI/CD.

• Frontend Engineer — React + TypeScript; accessible, responsive interfaces for enterprise AI applications and secure backend/AI integrations.

• SRE Platform Engineer — Azure, Terraform, observability, CI/CD, containers/Kubernetes, incident response, platform reliability, and DevSecOps.

• Cloud Automation Engineer — Azure + Terraform; infrastructure automation, CI/CD, Docker/Kubernetes, GitHub Enterprise, deployment, and operational automation.

Required for all roles:

U.S. citizenship • Currently residing in the U.S. • Eastern or Central Time Zone • Ability to obtain and maintain a government clearance.

Compensation will vary based on role, experience, and qualifications. We’re happy to discuss compensation expectations early in the process so neither side wastes time.

GovStar benefits include medical, dental, and vision coverage; 401(k) matching; paid time off; and an employee shares program.

To apply, email your resume and GitHub profile to nicholas.hanson@govstar.us

Please mention “Hacker News” in the subject line.

OpenAlex | Software Engineer | Remote | Full-time | $150–200k USD

OpenAlex is an open index of the world's scholarly research: hundreds of millions of articles linked to authors, institutions, and topics, free via API and bulk download. Traffic runs about a billion API calls per month from universities, governments, and AI companies. The team behind it is a small nonprofit funded by grants and enterprise support.

We're hiring two engineers to work across the whole backend, which is SQL and PySpark on Databricks, Python/Flask APIs, Elasticsearch, and Cloudflare Workers. It's a small team with lots of autonomy. You'll notice what's missing, build it, ship it, and answer the tickets about it. We're AI-native, with agents writing all of our code.

Apply here: https://openalex.org/jobs/software-engineer

CoVar | Durham, NC and McLean, VA | https://covar.com/ | Full-time | HYBRID (3 days in office per week)

CoVar is a small R&D company specializing in AI/ML and software development for defense and healthcare. Bootstrapped and profitable. We're looking for a jack-of-all-trades who can: prototype computer vision algorithms, build Python web services, wrangle large sets of data from disparate classes of sensors, ... any or all, with the only hard requirement being eagerness to learn.

Visit covar.com for more information on our current openings!

Enrollment123 | https://e123insurtech.com | Staff Platform Engineer | REMOTE (US) | Full-time

We are SaaS platform that connects Insurance Carriers, Agencies and Agents, and enables sales to consumers.

My team is hiring a Staff Platform Engineer to keep things running smoothly and help our engineers modernize and build new products.

We are responsible for:

    - security for PCI and HIPAA data
    - AWS infrastructure that serves millions of people every month
    - developer tools and infrastructure to allow our teams to deliver
    - data engineering and operational support
    - automation, monitoring, and on-call rotations (especially during Open Enrollment!)

Our stacks include:

    (70% --) SQL Server + ColdFusion
    (25% ++) Postgres + node/typescript
    (5%) Airflow + python

It's not a flashy product or stack I'll admit, but we have a lot of opportunities to improve the product and a lot of growth potential to expand our impact. Happy to tell you more!

If you're interested, email me at jjay+orangesite@enrollment123.com with your honest, hand-written resume. I don't want some super polished AI bullshit, show me your real experience! The interview process is hopefully short and sweet: 1) meet with me for a quick intro to ensure we'll be a good mutual fit, 2) advance to a technical interview with the team, then 3) a last culture + company info session so you have all the info to make a decision.

Sorry, given our industry and size, you must be in the US and able to work without visa sponsorship.