Phonely | Senior Backend Engineer (Python) | San Francisco (Onsite) | Full-time

We’re building the future of voice AI for businesses, with a platform designed to make real-time agents easy to build, tune, and operate.

We’re looking for a senior backend engineer to work on core systems that drive live voice conversations in production. This is a hands-on role with a lot of ownership and a lot of Python.

What you’ll do

• Build Python-based state systems for real-time voice AI conversations

• Integrate multiple LLM providers (prompting, routing, tool calling, fallbacks)

• Write high-performance async Python (FastAPI, asyncio)

• Design and test resilient agent logic and microservices

• Operate and improve production systems with strong observability

What we’re looking for • 5+ years of Python experience, including async web services

• Experience with FastAPI, testing, and CI/CD

• Strong system design and security fundamentals

• Familiarity with LLMs, cloud infrastructure, AWS, and Kubernetes

Stack

Python, FastAPI, async microservices, AWS/GCP, Kubernetes, Redis, Firebase, Supabase, Datadog, SIP/voice APIs

Why Phonely

Small, intense team of builders. High ownership, fast pace, real impact. In-office 5 days/week in SF. Company-paid meals, great culture and periodic international work trips.

https://bookface.ycombinator.com/company/29645/jobs/87967

YakitOfisi | Senior Full-Stack Software Developer (backend-first) | REMOTE (Turkey)

YakitOfisi (yakıtofisi.com) builds software for the fuel / energy sector. We’re looking for a senior, backend-first full-stack engineer to own real-world, deterministic systems that run in production every day.

Tech: .NET, ASP.NET, EF Core, Hangfire, PostgreSQL, Redis, Linux, Nginx, AWS, Grafana/Loki, Flutter, IoT/serial communication.

Requirements:

- Senior-level, can run a full-stack project independently

- Strong backend (.NET), decent frontend

- Comfortable owning production systems

- Bachelor’s degree required (technopark)

Remote (Turkey, preferably Marmara region). Salary based on experience.

Apply: https://docs.google.com/forms/d/e/1FAIpQLSdGsIKBVRaOS0yZu1Rf...

Stream | Multiple Positions | Amsterdam (NL), Skopje (North Macedonia) | Boulder, CO (US) | Toronto (Canada)) | Remote possible | Full Time | Visa Sponsorship We are consistently hiring backend engineers ranging from Senior level to Staff / Lead / Director / Principal Go engineers. If you have experience with a different tech stack, we offer a 10-week onboarding program to train you in Go, scaling and other key topics: https://tinyurl.com/2u5x9f9w

Spotlight:

* Technical Director of Engineering

* Lead Backend Developer (Go)

At Stream, we use Go for our video SFU, chat API, Moderation and Feeds, serving high traffic from major apps like Strava, Nextdoor, Patreon, and Midjourney. Our tech stack: Go, CockroachDB, RocksDB, WebRTC, Raft, and Redis.

Why Join Stream?

* High scale/ difficult engineering, we have customers using our products with millions of users

* Default alive. Startup growth opportunity with healthy revenue

* All managers are hands-on and capable engineers

* Edge network of servers around the world

* Great opportunity to learn and grow

Remote: our roles are primarily NL, US, North Macedonia, or CANADA-based (hybrid), but exemptions for remote work within the EU may apply to specific cases.

Visa Sponsorship: Available for the Netherlands

Apply here: https://jobs.ashbyhq.com/stream?utm_source=5rrpvObp3r

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

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

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

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

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

Roles:

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

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

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

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

Jurisphere.ai | Lead DevOps / SRE | Bangalore (Hybrid) | Full-time

Comp: ₹40–60L + ESOPs (flexible)

Exp: 6–12+ yrs

Jurisphere builds an enterprise Legal AI platform used by top law firms in India & the US.

We’re hiring our first SRE / Platform Engineer to own production reliability and act as the infra point-of-contact for enterprise clients.

You’ll own:

• Reliability, SLOs, on-call, incident response

• Kubernetes (multi-cloud + on-prem), GitOps, CI/CD

• Observability, DR (RPO/RTO), security & compliance

• Client-facing security & compliance discussions (IT checklists, audits)

Stack: Kubernetes, Terraform, ArgoCD, GCP/Azure/AWS, Prometheus/Grafana, Postgres, Redis, Temporal.

Not a YAML-only role, you’ll debug real systems and work on the backend code as needed.

If you're interested, email sumit@jurisphere.ai with infra you’ve owned end-to-end. More details here: https://docs.google.com/document/d/1x2WKM0iXlvUVDZXm4SQVr53s...

Plutus | Kirkland, WA (In Person) Founding Engineer | We're building a fintech platform that democratizes sophisticated investment strategies. We're looking for engineers who love the craft of software and take pride in what they build.

This is a hands-on technical leadership role where you'll architect and build scalable systems, establish engineering best practices, and help shape our technical culture. You'll own end-to-end delivery from conception to production.

===

Cloud Platform:

GCP (Cloud Run, Cloud SQL, Cloud Armor, K8S)

Languages & Frameworks: Node.js, TypeScript, React

Data Store: PostgreSQL, Storage Buckets

Cache: Redis

Infrastructure: Terraform, Docker

====

You must:

1. Love the craft - You take pride in writing clean, maintainable code. You care about the details. Building software well matters to you.

2. Have battle scars - 8+ years of experience including real on-call rotations and service maintenance. You've been paged at 3am and know what it takes to keep systems running.

3. Be deeply curious - You dive deep into unknowns. When you don't know something, you figure it out. You want to understand how things work, not just make them work.

4. Use AI effectively, but own the fundamentals - You leverage AI tools to move faster and be more productive, but you have deep knowledge of the entire stack. You can explain what the code does, debug when things break, and make architectural decisions without relying on AI to tell you what's right.

===

Technical Requirements:

1. Expert-level TypeScript/Node.js and React

2. Strong PostgreSQL and database design skills

3. Experience with GCP (Cloud Run, Cloud SQL preferred)

4. Infrastructure as Code (Terraform)

5. Building and scaling production APIs

6. Real production experience with monitoring, observability, and incident response

===

Compensation and Benefits:

- Competitive early-stage startup salary + Equity Package

- Health Insurance

- Not eligible for visa sponsorship

- Not eligible for relocation

Email mitren@runplutus.com

Cogram | Full-time | Remote (CET ±3) | https://cogram.com | B2B Saas / AI for AEC

Cogram is an AI platform for the architecture, engineering, and construction industry. We automate project admin such as RFIs & submittals, email filing, field notes, meeting minutes, and reporting. World-leading architecture and engineering firms have adopted Cogram at scale. We're backed by YC and Initialized.

We're looking for product engineers that ship high-quality software and are good at talking to users and understanding requirements. You're comfortable across the stack and own features end-to-end. A strong sense for good UI/UX is required. Experience in 3D modeling / CAD / BIM is a big plus.

Stack: Python (FastAPI), Postgres, Redis, React/TypeScript, React Native/Expo, Terraform/Kubernetes on AWS & Azure. Fully remote, three off-sites/year, ~38 paid days off, competitive salary + equity.

Apply: r+hiring[at]cogram[dot]com with GitHub/LinkedIn/portfolio and a short note, including your current agentic-coding setup.

Featurebase | Full-stack Product Engineer | REMOTE (EU) | Full-time

Modern customers support & product feedback platform powering thousands of teams, including Lovable, Raycast, and n8n. Fully bootstrapped, profitable, and growing fast.

We’re building a full customer-facing suite where teams can handle their customer support, feedback prioritization, and product updates - all in one place.

We’re looking for a full-stack product engineer to own and ship core product features end-to-end, with a direct impact on Featurebase’s future.

Stack: NextJS + Typescript for the frontend, Node.js for the backend, MongoDB, Redis.

If you like small teams, autonomy, and shipping meaningful product work, we’d love to have you on board!

Apply here (we read every submission): https://go.featurebase.app/careers

alias (GOAT Group) | Los Angeles, CA | Remote | Full-Time | alias.org

alias helps people sell their footwear and apparel. We're owned by GOAT Group which also owns GOAT, FlightClub, and Grailed. We did over 1B in GMV last year. IYKYK. We work to make seller's lives easier, help them accomplish their goals, and provide top-tier market insights.

We're looking for Backend Engineers who: - Have a bias towards action - Are incredibly curious with a drive to learn new technologies - Are data driven and can reason about large systems

Tech stack: Go microservices, DynamoDB, redis, some exposure to rails + postgres

Apply at https://job-boards.greenhouse.io/goatgroup/jobs/4623586005. Mention in the application that you saw our post on HN.

BuildForever | On-site (SF, NY) | Full-time

We’re a small team of creative builders crafting consumer products that feel personal, magical, and deeply human. We build for ourselves first, with the belief that what delights us will resonate with millions more. We imagine a new golden age of consumer software - crafted with heart, emotion, and taste. Small, inspired teams building things that feel lovingly made, purposeful, and joyful to use. If that sounds like your happy place, you’ll fit right in.

We have several positions available. Please send us a note at careers@buildforever.com with a short intro and links to what you’ve built (systems, repos, tools, prototypes, side projects). We care more about your taste, technical creativity, and product intuition than resumes.

Backend Engineer - https://ambiguous-thunder-400.notion.site/Backend-Engineer-2...

ML/AI Engineer - https://ambiguous-thunder-400.notion.site/ML-AI-Engineer-2aa...

Product Engineer - https://ambiguous-thunder-400.notion.site/Product-Engineer-2...

Social Growth Lead - https://ambiguous-thunder-400.notion.site/Social-Growth-Lead...

Stack Backend: Python, FastAPI, TypeScript, Postgres/SQLModel, Redis, Cloud Run. Frontend: Swift, UIKit, React.

Caspian Trade, Inc. | Software Engineer | SF, Hybrid 3+ days a week | Full-time

We're simplifying global trade compliance and helping importers navigate the trade environment, starting with duty drawback—a tax recovery process that puts cash back into importers' hands. Our platform transforms messy trade data into actionable insights, helping businesses recover from the estimated $10B in unclaimed refunds each year.

- AI/ML document ingestion processing thousands of unstructured documents - Data modeling for the complexities of global trade - Matching optimization (think: the world's biggest matching problem) - Building integrations across ERPs, customs brokers, and the countless creative ways companies manage trade data

Node, NestJS, TypeScript, PostgreSQL, React, Relay/GraphQL, BullMQ/Redis, Nix

The team is small, growing and well funded with with real revenue + domain expertise. If you're a product-minded engineer excited about shepherding AI to an old industry, let's chat: ebeweber@meetcaspian.com

https://meetcaspian.notion.site/Sr-Software-Engineer-Caspian...

Xledger | Mid/Senior Software Engineer | Colorado Springs, CO | ONSITE NO-VISA | 90K - 150K | https://xledger.com

Xledger is a cloud ERP system that gives customers better control of their businesses. We are expanding our team in Colorado Springs, and are looking for strong generalists to help us create best-in-class functionality for our customers.

Technology: .NET, SQL Server, Redis, Clojure, ClojureScript, ClojureDart, Postgres

You:

- Have a deep understanding of how the web works (HTTP, databases, caching, API's, etc)

- Have experience building and deploying several web applications

- Are comfortable with relational databases (we use SQL Server and PostgreSQL)

- BONUS: experience with Clojure

Our hiring process consists of a few video interviews and often a short (30 - 60 LOC) work sample submission.

Contact techjob.xledger@gmail.com with resume, and if available, links to some of your work (e.g., Github profile).

Note: No remote position or visa sponsorship available. Please don’t apply unless you know you can already legally work in the US.

ASBL | Mobile Engineers, Engineering managers | Hyderabad, India | ONSITE | 35-100L INR We're a fast-growing, profitable real estate company in India, using technology to solve deeply complex problems in the construction and real estate space. Our mission is to build high-quality homes and deliver them on time—a massive challenge in this industry. Your code directly impacts everything from our supply chain and project management to the final home-buying experience for families. We're looking for product-minded engineers who want to own problems end-to-end in a high-impact environment. We use cursor and are AI first. Stack: React, Angular, TypeScript, Node.js/FastAPI, Postgres, Redis, Docker, GitHub Actions, AWS/GCP, OpenTelemetry.

Culture: AI-native (everyone uses Cursor/Copilot), small teams, high ownership, fast iteration.

Learn more and apply at: https://asbl.in/careers/software-engineering. Please mention you saw us on Hacker News.

Charted Sea | Senior Product & Platform Engineer | REMOTE | Full-time Location: Hong Kong https://chartedsea.com/about

Charted Sea is a small, bootstrapped SaaS company helping customers scrape very complex platforms such as Shopee (a major e-commerce platform in Southeast Asia). We focus on hard technical problems (anti-bot, browser automation, fingerprinting, captcha solving).

We are hiring a senior engineer to take ownership of our core platform: scraper orchestrator, billing & payments, customer dashboard, and parts of our AI-based captcha tooling. This is a hands-on role with real ownership: architectural decisions, setting standards, and gradually mentoring other engineers. The role is very full-stack (infra, backend, frontend).

Stack includes TypeScript (most backend & web), Rust (new backend services, migration in progress), Go (Android scraper), PyTorch (captcha solvers), PostgreSQL, Redis, GitHub Actions, Ansible, Ubuntu Linux, bare-metal Hetzner servers.

We are profitable, demand is growing fast, and engineering bandwidth is the main bottleneck. Team is small (3 engineers), fully remote, mostly async (we expect ~4h overlap with UTC+8).

Compensation: $80k–$120k USD base (depending on experience) + monthly bonus tied to company revenue (10% of net revenue shared with employees).

Apply by emailing marc.plouhinec@chartedsea.com with a short intro and CV/GitHub. I'm the founder and will personally read and reply.

TextQL | Senior Software Engineer (FT) | ONSITE | New York City | $200k Salary - $400k Total Compensation

Company: TextQL is working to drive the unit cost of a data-driven decision down to zero. We're building the agentic data lakehouse – finding trustworthy answers to hard questions from messy enterprise data without configuring schemas, moving data, or lengthy implementation roadmaps.

Roles:

* Platform: today, no one stakes their job on AI-generated queries. You'll build the system that changes that—giving agents the context to query enterprise data correctly, and the guardrails to prove it.

* Infrastructure: sandboxes are not enough for agents to work with enterprise data. You will develop reliable infrastructure for the first data platform designed to be operated agent-first – ETL pipelines, Trino clusters, and systems that let agents spin up infrastructure on their own.

Stack: Go, Haskell, TypeScript, DuckDB, Trino, PostgreSQL, Redis, Kubernetes, AWS

Perks: 21 days PTO, free lunch, 5% 401(k) matching, top-tier health insurance, visa sponsorship

How to Apply: email gabriel@textql.com with the most significant technical challenge you have solved, GitHub if you have one, and LinkedIn and/or resume (PDF).

Shepherd | ONSITE | San Francisco, CA

Shepherd is an all-in-one commercial insurance platform. We provide savings on insurance premiums for commercial businesses that are leveraging modern technology on their worksites. While we began with commercial construction, we've just expanded into adjacent sectors, like renewable energy & power!

We’ve raised over $20M and we’re looking for product-minded engineers to join us as we continue to scale! We’re looking for someone who thrives on ownership, drives results, and cares deeply about both technical excellence and customer impact.

We’re hiring for Senior & Staff-level Full Stack & Backend Engineers. We’re growing the engineering team from 20 to 40 this year. And we're also looking for two Product Managers!

* Full Stack - Job Posting: https://jobs.ashbyhq.com/shepherd/c4081c3d-a79b-4ac9-aa19-78...

* Backend - Job Posting: https://jobs.ashbyhq.com/shepherd/395f4b75-cf05-4581-8408-8f...

* Product Manager, Pricing - Job Posting: https://jobs.ashbyhq.com/shepherd/2c278fc5-82fd-4887-874a-2f...

* Product Manager, Servicing - Job Posting: https://jobs.ashbyhq.com/shepherd/041af02a-4d4e-4711-935f-ad...

Our stack includes: Typescript, React, Next.js, GraphQL w/ Apollo, Node.js, Postgres & Redis

Apply here: https://shepherdinsurance.com/careers

* In the form, be sure to mention that you heard about this opportunity via Hacker News.

If you want to read more about our team and culture, check out our blog: https://shepherdinsurance.com/blog

Head of Engineering & Infrastructure | Full-Time | Remote | $182k - $272k USD - https://fetlife.com/jobs/head_of_engineering_and_infrastruct...

Role: Fully own our engineering and infrastructure teams, keep FetLife fast and reliable for over 12 million members, and free the rest of the leadership team to focus on product and growth.

Perks: Paid time off (2 weeks vacation, 5 statutory holidays, 2 weeks at Christmas, 4-day summer workweeks), annual company retreat, anniversary gift ($200/year), monthly music subscription reimbursement, fully paid maternity & paternity leave.

How to Apply: Email jointheteam+hoei+hn@fetlife.com with a brief introduction, tell us about the impact you have personally made on an engineering or infrastructure team you have led, and LinkedIn or resume (PDF).

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FetLife | Senior DevOps Engineer | Full-Time | Remote | 115k - 180k USD - https://fetlife.com/jobs/devops-engineer

Role: Develop and implement infrastructure upgrades, database tuning, Kubernetes and Helm orchestration, monitoring, and security. Help maintain and improve our large-scale Rails monolith, including CI/CD. Participate in on-call rotation and help automate daily DevOps tasks.

Perks: Paid time off (2 weeks vacation, 5 statutory holidays, 2 weeks at Christmas, 4-day summer workweeks), annual company retreat, anniversary gift ($200/year), monthly music subscription reimbursement, fully paid maternity & paternity leave.

How to apply: Email jointheteam+do+hn@fetlife.com with a brief introduction, 2–3 favorite projects, GitHub/GitLab link, and LinkedIn profile or resume (PDF).

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Stack: MySQL/PostgreSQL, ScyllaDB, Redis, ElasticSearch, Terraform, Google Cloud, DataDog and more.

Applications: Rails, Vue.js/Typescript, Rust

About Us: FetLife is the largest kinky social network with 12M+ members, 100% word-of-mouth growth, and billions of daily requests.