BuildQ | Founding Engineer | REMOTE (PT to ET overlap preferred) | $130K - $150K + equity | Full-time | Seed | https://buildq.ai/careers/founding-engineer

Hey folks! I'm Dylan, CTO at BuildQ, and we're building out our founding eng team. Today, a $200M solar project sits for weeks while someone reads thousands of PDFs before it can be financed. We make that review fast: customers order diligence from us, our agents do the work, and an expert signs off. We've processed 200,000+ documents across 1,100+ projects so far. We're remote, and the benefits are great (a startup with a 401k match!).

We're looking for a Founding Engineer to join 2 of us on the engineering team. You'll ship to production on your first day, and you'll help shape what the future of BuildQ looks like.

Stack: Rails, Python, React, TS, Postgres, AWS

Email careers@buildq.ai with "HN Founding Engineer", anything you're proud to share that you've built, and any questions you may have.

Zefr | Los Angeles, CA (Marina del Rey) | Site Reliability Engineer | Full-time | On-site 2-3x per week | $100,000 - $130,000 | https://zefr.com

Company

Zefr is the leading global technology company enabling responsible marketing in walled garden social environments. Zefr’s solutions empower brands to manage their content adjacency on scaled platforms such as YouTube, Meta, TikTok, and Snap. Through its patented AI technology, Zefr offers brands and agencies more accurate and transparent solutions for social walled gardens.

Role

Site Reliability Engineer (1 - 3 years experience)

You

As a Site Reliability Engineer at Zefr, you’ll apply your expertise in cloud infrastructure, CI/CD, Observability, and core SRE concepts, to deliver high-quality, reliable, and scalable solutions.

We’re looking for someone to combine their technical expertise with a passion for continuous improvement and innovation.

Zefr wants a candidate that champions reliability as a product feature, and can translate complex technical concepts into strategy. This is a role where you'll help shape how we build and operate systems at scale.

Tech Stack

Clouds - GCP, AWS

Kubernetes - GKE, EKS

GitOps - ArgoCD, Github Actions

Languages - Python/React/Node.js

Observability - Prometheus, Grafana, Open Telemetry, Chronosphere

Location: New York, NY

Remote: Yes (open to frequent travel, PST preferred) or NYC.

Willing to relocate: No

Technologies: SQL, Python, Go, React/Typescript (plus AWS, Figma, and plenty more)

Resume/CV: https://michael.chisari.us/resume.pdf

Email: michael@chisari.us

--

Software Engineer / Founding Engineer

Generalist with deep experience that learns and moves quickly.

Looking for a contract-to-hire position since I've always had strong success "interviewing" this way.

I also have additional soft skills that can be useful at a startup. I've pitched to investors, interviewed and grown teams from zero and I have unique insight from my experiences.

Prefer startups, greenfield projects and true innovation.

Location: New York, NY

Remote: Yes (open to frequent travel, PST preferred) or NYC.

Willing to relocate: No

Technologies: SQL, Python, Go, React/Typescript (plus AWS, Figma, and plenty more)

Resume/CV: https://michael.chisari.us/resume.pdf

Email: michael@chisari.us

--

Software Engineer / Founding Engineer

Generalist with deep experience that learns and moves quickly.

Looking for a contract-to-hire position since I've always had strong success "interviewing" this way.

I also have additional soft skills that can be useful at a startup. I've pitched to investors, interviewed and grown teams from zero and I have unique insight from my experiences.

Prefer startups, greenfield projects and true innovation.

Location: Brazil (UTC-3) Remote: Yes Willing to relocate: No Technologies: Go, Node.js, TypeScript, PostgreSQL, Redis, Kubernetes (EKS), Docker, AWS, GCP, GitHub Actions, Python, LLM APIs (Claude, OpenAI, Openrouter), MCP Résumé/CV: https://hamiltonjr.dev/ - https://www.upwork.com/freelancers/hamilton Email: hamiltonjr.dev@gmail.com

Backend engineer working as an independent contractor (registered company, invoice in USD). I build and run production backends: Go and Node services, Postgres schema and query tuning, idempotent workers with outbox and advisory locks, Kubernetes deploys and CI/CD.

Recent work: migrated a platform to AWS EKS; built AI agent backends with tool calling, structured outputs and human approval gates; WhatsApp AI scheduling agent in Go (public code: github.com/aseno-up/backend).

Looking for contract or long-term contractor work, 20 to 40 hrs/week. I work best async: written updates, clear PRs, documentation.

-Sunutexe group | Senior Software Engineer | Dakar, Senegal | REMOTE (Worldwide) | Full-time / Contract

I've spent 8+ years building web and mobile products, from early-stage ideas to production systems.

I've worked on fintech platforms, payment systems, ticketing, e-commerce and SaaS products. I've integrated Stripe, PayPal, Wave and Orange Money, and built backend systems where transaction consistency, security and reliability really matter.

My strongest area is backend engineering: Node.js, NestJS, TypeScript, PostgreSQL and AWS. I also work with React, Next.js and Flutter.

I'm looking to join a team building a real product, where I can take ownership of technical challenges and contribute beyond just writing code.

Portfolio: https://portfolio-pdg-two.vercel.app/en

If you're building something interesting and need an experienced engineer, reach me at *sunutexegroup@gmail.com*. I personally respond.

Radar Labs | Software Engineers (SRE, ML, backend, full-stack, mobile, security, QA) | Remote (US), NYC | Full Time | https://radar.com

- Radar is the geo-location dev tool

- Doing 1B+ API calls per day

- Our main languages are Rust and TypeScript, we also use mobile and offline pipeline languages (Python, Scala, and Terraform).

- We're based in NYC with our HQ in Union Square and remote friendly (US)

Interesting things we're working on:

- HorizonDB, our Geospatial database written in Rust

- Agents and MCP tools to visualize and debug location data at scale

- Precise indoor location more accurate than iOS and Android leveraging Ultra-Wideband, other mobile sensors and ML.

- Anomaly detection to identify spoofed locations

- Mobile infrastructure that automatically configures itself optimizing battery-life and location accuracy for different use-cases over time

- Multi-Region AWS K8s deployment, 99.99%+ availability

Check out our jobs page here: https://radar.com/jobs#jobs If you have any questions, feel free to reply here or you can e-mail me at tim@radar.com

Proofline | Founding Staff / Principal Engineer | REMOTE (Worldwide, Berlin timezone overlap preferred) | Full-time | €120k-€200k + equity | https://proofline.sh/careers/founding-staff-principal-engine...

Hi HN, I'm the founder of Proofline. We're building an infrastructure-aware AI code reviewer that catches deployment failures before they reach production. Think of it as a type checker for your cloud infrastructure. We analyze code changes against Terraform, live cloud environments, and deployment evidence rather than just reading diffs.

We're hiring a hands-on Staff / Principal Engineer to help us build. You'll own core SaaS architecture, cloud integrations, developer tools, and product delivery, with a path toward engineering leadership.

Stack: Rust, Go, PostgreSQL, React/TypeScript, Terraform, AWS, GCP.

We're looking for someone with 10+ years of hands-on infrastructure engineering experience, deep SaaS and cloud expertise, extensive use of AI coding agents, and a track record of shipping end to end.

Remote globally, flexible hours, regular Berlin visits required. Salary: €120k-€200k depending on experience and location, plus meaningful founding equity. No visa sponsorship.

To apply, ship a small feature PR to one of our open-source developer tools and email careers@proofline.sh with the link. If you have 10+ years of relevant experience and an established online presence showcasing your technical work, you can skip the PR and share your best work with us instead.

Details: https://proofline.sh/careers/founding-staff-principal-engine...

Location: Dorset, UK

Remote: Yes (UK, US and EU time zones)

Willing to relocate: No

Technologies: Ruby on Rails, Python (FastAPI), TypeScript/Node, Go, PostgreSQL, AWS, Hotwire

Résumé/CV: https://wagnermatos.co.uk

Email: wm@wagnermatos.co.uk

Senior engineer, 15 years. I build complete products on a fixed scope and fixed price: one senior engineer accountable end to end, AI-accelerated. Recent work includes a clinical alerting platform used by NHS trusts, an edge-to-cloud analytics platform for Johnson & Johnson Medical, and the cloud platform behind a fielded detection-hardware fleet. Also open to contract engagements (Rails). Case studies and client testimonials on the site.

Encube | ML Engineer, ML Ops Engineer | Stockholm, Sweden | ONSITE | Full-time

Encube is a platform where hardware teams look at their 3D designs and engineering drawings together and make better products faster. We're building AI that understands those drawings and 3D models, and can eventually create them. Evaluations are a massive priority, and we need to consistently demonstrate how our models are better than frontier VLMs.

ML Engineer: train models that connect 2D drawings to 3D models, build agents that generate CAD and drawings, figure out how to measure if they're actually good, and ship them to real customers. PyTorch. Bonus if you've worked with 3D, CAD or graph neural nets.

ML Ops Engineer: on-prem and AWS GPUs, make every experiment reproducible, keep costs down and customer data safe, and get rid of whatever slows the ML team down. SkyPilot, MLflow, PyTorch.

psfleet | AI Engineer (Agentic / GenAI) | REMOTE (Europe & nearby time zones) | Full-time

Remote-first cloud & AI services company (founded 2015, 70+ engineers, AWS Advanced & Google Cloud Partner) with a growing GenAI practice and several active client projects.

You'll build production AI agents and multi-agent systems for clients: Python, LangChain/LangGraph, MCP/A2A, RAG and vector search, evaluation and monitoring, on AWS Bedrock and GCP Vertex AI. Direct client contact, usually across a few projects.

We're looking for hands-on experience shipping agentic systems to production (not just prompts) and strong Python. Cloud experience is a plus.

Process: intro call -> take-home assignment -> technical interview -> offer.

Apply: https://www.linkedin.com/jobs/view/4478769287/ or bat-el.nativ@opsfleet.com - please mention HN, and tell us about an agent you've built.

VALIS (Valis Insights) | Software Engineer, new product line | REMOTE (US, East Coast hours) | Full-time | $125k-$155k + equity

I'm Caleb, co-founder/CTO. VALIS builds data products for scrap metal recyclers. Our product images, weighs, and classifies scrap metal, and our platform turns that into actionable quality analytics to improve physical ops at plants across the US. Recycled metal takes a fraction of the energy of mined metal, and better data means more of it gets recovered.

We're hiring an engineer to build our next product line: a production tracking and analytics platform for recycling plants, extended from our existing product. We're a small team (<10 ppl). What you'd work on (ideate, build, deploy, own):

- Modeling a complex (and intellectually stimulating) physical process

- Agentic features that dig through production and quality data, surface trends, flag anomalies, and notify the right people

- Working directly with customers: regular calls with operators and plant managers, plus a few site visits a year

You should have 3+ YoE, strong data modeling fundamentals, and enjoy owning ambiguous problems end to end. We care more about how you think than what exactly you've used. Recycling, ERP/MES, or physical ops software experience is a plus.

Our stack: React/TypeScript, C#/.NET, PostgreSQL, AWS.

US work authorization required; no sponsorship.

Apply (read the whole JD, mention HackerNews): https://apply.workable.com/valis-insights-1/j/9D0C64C055 Questions: caleb[dot]ralphs[at]valisinsights[dot]com

Tech Mahindra’s Cloud Advisory division is hiring engineers (4+YoE) and cloud solution architects (8+YoE) to help enterprises modernize and operate at scale on AWS, Azure, and GCP. We value folks with a strong software development background who have grown into cloud and platform engineering roles. Our work spans cloud application modernization, platform engineering, DevOps, SRE, SecOps, and FinOps. Any experience with using AI to improve cloud platforms, DevOps or operations is a plus.

We’re hiring across geographies (India, Mexico, Canada, USA).

Roles include: Cloud Engineers, Platform/DevOps/SRE, Cloud Architects, DevSecOps, Tech Leads, and Engineering Managers.

Apply: Send your resume to cprabala@techmahindra.com (mention HN – Cloud Advisory).

Splash Tech | DevOps Mid/Senior | Remote (LATAM and EU) | Full Time | https://splash.tech/

We're a small UK-based free-to-play gaming company with a distributed team, growing fast after recent success and scaling our backend platform. We’re looking for a DevOps engineer with 5+ years of experience.

Most of the work is AWS-focused. You should have hands-on experience with:

- AWS, particularly EKS, EC2, Application Load Balancers, RDS, and IAM. - Terraform and managing infrastructure as code. - Kubernetes, including troubleshooting workloads and cluster issues. - CI/CD and GitOps workflows using GitHub Actions and Flux. - Monitoring, alerting, and tracing with tools such as Grafana, Prometheus, Alertmanager, Jaeger, and OpenTelemetry. - DNS, TLS, and Cloudflare.

Strong AWS networking knowledge, including VPC design, routing, private connectivity, and troubleshooting is highly desirable.

Our stack includes AWS, Kubernetes (EKS), PostgreSQL, Trino, Flux, Terraform, and GitHub Actions. You don’t need to know every tool already, but you should be comfortable learning what the job requires.

You should be comfortable owning work from identifying a problem and proposing a solution through implementation, rollout, documentation, and ongoing operation.

You should be comfortable investigating issues across applications, Kubernetes, networking, and databases. We also value clear thinking and communication: you should be able to explain your ideas and trade-offs using simple architecture or flow diagrams—just boxes and lines, nothing formal.

To apply, email lucas[at]splash.tech with the subject “DevOps Engineer 2026”. Include a brief introduction and a link to a repository or project that demonstrates your infrastructure or automation work. If you don’t have work you can share, we may ask you to complete a small practical test.

Certara | Sr. DevOps Engineer | REMOTE (US, Budapest) | Full Time

Certara makes software that life sciences companies use to develop drugs and get them approved. Our products model how drugs behave in the body (biosimulation) and validate clinical trial data for submission to regulators like the FDA.

We’re hiring a DevOps engineer to help grow the infrastructure behind our cloud products. You’ll work on:

CI/CD pipelines: CircleCI, Jenkins Cloud infra: AWS, Terraform, Chef Security/compliance: ISO 27001, GxP validation

US Listing: https://careers.certara.com/jobs/2614/job

Hungary: https://careers.certara.com/jobs/2492/job

We also have several engineering and product management roles.

GovStar | https://govstar.us | Remote (U.S. Eastern/Central Time) | Data Engineer + Security Engineer | U.S. Citizens

GovStar is hiring two engineers to build and protect mission-critical data, AI, and analytics capabilities supporting U.S. national security missions.

Data Engineer — Build and modernize data pipelines, integrations, and architectures across source systems, warehouses, and future lakehouse environments. Strong Python, SQL/PostgreSQL, CI/CD, Git, and data architecture experience required; Docker, Snowflake, Databricks, AWS/Azure preferred.

Security Engineer — Design, implement, and operate security controls across applications, data platforms, cloud infrastructure, and DevSecOps workflows. Strong experience with IAM/RBAC, encryption, SIEM/logging, vulnerability management, incident response, ATO/continuous monitoring, NIST 800-53, FedRAMP/FISMA, and Azure/AWS/GCP required.

Both roles require: U.S. citizenship • Must reside in U.S. in Eastern or Central Time Zone • Ability to obtain DHS Public Trust • BA/BS + at least 7 years relevant experience.

Compensation varies by experience and qualifications. Benefits include medical, dental, vision, 401(k) matching, PTO, and an employee shares program.

To apply, email your resume and GitHub profile to nicholas.hanson@govstar.us. Please mention “Hacker News” and the role in the subject line.

Hatch | Staff Backend Engineer | REMOTE (US/Canada, Pacific Time hours) | Full-time | https://hatch.co

Hatch makes smart sleep devices and science-backed content to help people build healthy sleep habits, from newborns to adults. Our lineup includes the Hatch Sleep Clock, a contactless sleep tracker with no wearable, Restore 3, a smart sleep clock for adults, and Hatch Baby, plus a library of original sleep audio. Our products are in 1 in 3 US nurseries and we have over 5 million sleepers. We're fully remote with a small engineering team.

We're hiring a Staff Backend Engineer to own the backend behind our mobile apps and IoT devices: Java/Spring Boot and Python REST APIs, AWS IoT and Lambda, MySQL, plus the monitoring and automation (Ansible, Jenkins, ELK, Graphite, Docker) that keep millions of devices running in real homes. It's an end-to-end role, with cloud APIs on one side and physical devices on the other, and you'll work directly with the Mobile, Embedded, and Product teams.

We're looking for 8+ years of backend experience, deep Java 11+/Spring Boot, some Python and Groovy, a track record building scalable REST APIs, and a bias toward the simplest thing that works. Bonus points for MQTT, connected hardware, or Ansible automation.

Apply: https://grnh.se/2fzj9un76us

Beacon AI | 3 days hybrid in San Carlos, CA | https://beaconai.co/careers Due to U.S. export control regulations, we can only hire U.S. Persons (U.S. citizens, Green Card holders, lawful permanent residents, or individuals granted asylum or refugee status).

Beacon AI builds intelligent systems that make aviation safer and more autonomous. We’ve completed multiple DoD programs and are expanding our team with exceptional technical leaders to push the boundaries of human-machine collaboration in the cockpit. At Beacon, you will lead by example, mentoring and growing a small team of talented engineers (typically 1–2 to start) while staying hands-on in design and execution. You’ll help shape critical systems that advance aviation safety and autonomy, working alongside a team that values effort, creativity, and accountability.

We’re hiring Senior/Lead Engineers with 5+ YOE who love solving complex problems. At Beacon, you’ll own your work end-to-end, from prototype to deployment, and literally see your code take flight in real world aviation environments! Roles:

++ iOS Engineer [Tech Stack: Swift, SwiftUI, UIKit, Mapbox]

++ Senior Security Engineer [FedRAMP ATO/SSP or DoD IL4/IL5, AWS/GovCloud]

++ Infra/Backend Engineer [Tech Stack: AWS]

++ WebApp/FrontEnd Engineer [Tech Stack: Python, Typescript, React]

++ Lead Autonomy/Robotics Engineer [Tech Stack: C++, Python, iOT]

Railway | Senior Growth Marketer, Senior Product Marketer, Account Executive, Scale, Senior Product Eng (full-stack) | REMOTE (Worldwide) | https://railway.com/careers

Do you feel scared and alone when opening the AWS console? Do you wish you could just tell Claude to manage your infra, and it would just work? Do you dream of a future where software is abundant and developers and normies alike are free to build their wildest dreams?

We're Railway, and we think infrastructure can be better. We're working at the forefront distributed systems engineering, interface design, and agentic computing to bring about the infrastructure platform we've always wanted. So far we've built out a platform loved by 4M+ users and we're just getting started.

Fair warning! The problems are complex: racking and stacking servers, home-rolled hypervisors, cut-above container orchestration, over/under/whateverlay networks, virtio device drivers, edge proxies, IAM that doesn't suck, kitchen sinks - we need to build it and we're looking for likeminded individuals who think this stuff is fun.

Four open roles (apply below!):

+Senior Growth Marketer: -Apply here: (https://railway.com/careers/growth-marketer)

+Senior Product Marketer: -Apply here: (https://railway.com/careers/product-marketer)

+Account Executive, Scale -Apply here: (https://railway.com/careers/account-executive-scale)

+Senior Product Engineer (full-stack): -Apply here: (https://railway.com/careers/full-stack)

*Data Engineer — Remote — US Only*

Kaveronix is looking for experienced Data Engineers currently based in the United States for fully remote opportunities with our client organizations.

*What we’re looking for:*

- 4+ years of professional data engineering experience - Strong experience with data pipelines, ETL/ELT processes, and data integration - Experience with technologies such as Python, SQL, Apache Spark, Snowflake, AWS, Azure, Google Cloud, or Databricks is a plus - Strong understanding of data warehousing, database management, and data modeling - Strong communication and problem-solving skills - Ability to work independently in a remote environment

*What we offer:*

- Fully remote work - Flexible working hours - Competitive compensation based on experience

*Compensation:* $80,000–$100,000/year, depending on experience.

If you're interested, please send your resume to hassan.amir@kaveronix.com