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145 matching jobs

  • Swift
  • UIKit
  • Android
  • iOS
  • macOS
  • Windows
  • Full-time

Psiphon | iOS / Flutter Developer | Toronto (Hybrid) | Full-time

Psiphon is a VPN app used by millions of people to access the open internet in regions where it's restricted. Small team, software that matters.

We're building the next-gen client app in Flutter (iOS, Android, macOS, Windows) and need someone who can work across both iOS native and Flutter. Split is roughly 65% Flutter, 35% iOS native (Swift, StoreKit, entitlements, network extensions). You'll have mentorship from a senior iOS specialist for the deeper networking work.

Day to day: Feature development in Flutter, iOS platform integration (subscriptions, permissions, App Store), and occasionally going deep into network extensions and packet tunnel providers. Small team (~3-4 core devs), high ownership, low ceremony.

Looking for: Strong Swift experience beyond just UIKit/SwiftUI app dev, comfort with the iOS ecosystem (App Store process, provisioning, StoreKit), and willingness to context-switch between Swift and Dart in the same day. Flutter experience is a strong plus but not required if you pick up frameworks quickly.

Contact: hr@psiphon.ca

Posted 36 minutes ago by adam-p

  • Python

Forward Deployed Engineer - backend - python | REMOTE (UTC -3 to +3) | Full time

Small stealth team in the property management space, building AI agents that run real operations, where agents and humans work as one team rather than as user and tool. Funded, profitable, fully remote, competitive comp.

We want a senior backend engineer to own a client facing use case end to end: build the backend tools and workflows our agents call, handle the jurisdiction and client specific extensions, and talk to the client directly. Pull requirements, explain the tradeoffs, own the relationship. Take messy real world problems, turn them into something agents can actually use, then keep it alive in production.

You're probably a fit if:

- you've shipped serious backend systems in production

- you can hold your own on a customer call

- you've run LLM agents in production, or you'll ramp fast: tool calling, evals, knowing when a plain deterministic tool beats a model call

Bonus, not required: containers and CI/CD, RBAC and auditing, LangChain and LangGraph, prior customer facing or operator background.

We care more about what you've built and can build than a checklist, so skip the skills inventory and tell us about something hard you shipped.

Apply: email mercedes@kinxshn.com with "HN - Forward Deployed Engineer" in the subject , your CV attached and salary expectation.

Trayd | Senior Fullstack Software Engineer | NYC (Fidi) ONSITE | $185K-$220K + equity

Trayd is building the operating system for construction payroll and back office. We make payroll fast and compliant for workers and subcontractors in a massive industry that still runs on spreadsheets and outdated systems. YC-backed and growing quickly with real customers and weekly payroll in production.

Apply here: https://www.ycombinator.com/companies/trayd/jobs/1Ez3l4b-sen...

  • React

Hevy | Lead/Senior React Native Engineer & Lead/Senior Backend Engineer | Barcelona, Spain | Hybrid | Relocation

Hevy is a multiplatform weight lifting tracker that lets athletes log their workouts, track progress and be part of a community of gym athletes. We are a bootstrapped fitness and technology company operating out of Barcelona, Spain.

Relocation to Spain: full relocation package, work permit + residence permit for spouse, hybrid (2-3 days in office/week), competitive salary + performance bonus. https://www.hevyapp.com/careers/

  • Python
  • SQL
  • TypeScript
  • GraphQL
  • Node.js
  • PyTorch
  • React
  • AWS
  • GCP
  • Azure
  • Terraform
  • Machine Learning
  • Full-time

Neo.Tax | Senior Full-Stack Engineer & Senior Data Scientist/ML Engineer | REMOTE (US, Pacific hours) | Full-time | $190K–$210K + equity Neo.Tax automates R&D tax credits and software cost capitalization for enterprises. We ingest data from project management, payroll, identity, and financial systems and use ML/LLMs to turn a process that used to take months into one that takes hours. Small team, real revenue, lots of hard problems in data extraction and pipelines at scale. Currently serving customers like Mercury, Brex, Notion, Adobe, and Capital One.

We're hiring two senior roles:

1) Senior Full-Stack Software Engineer (7+ yrs) TypeScript/Node + React on the front of the house; data ingestion pipelines processing millions of records and flexible schemas across wildly different company types on the back. You'll own projects end-to-end, scope with cross-functional partners, and ship both customer-facing and internal tooling. Bonus: GraphQL, GCP/AWS/Azure, Terraform/DevOps.

2) Senior Data Scientist + ML Engineer (6+ yrs) Own ML/AI problems from definition through production: classification, information extraction, entity resolution, ranking, anomaly detection, plus LLM systems (prompts, retrieval, tool-calling, eval). Python (NumPy/Pandas/sklearn/PyTorch), strong SQL, and real production deployment experience. Bonus: synthetic data, RAG, experience fine-tuning LLMs.

Both are senior, high-autonomy roles--you should be comfortable breaking ambiguous requirements into iterative deliverables and reading unfamiliar code. Not a fit if you want heavy mentorship or detailed specs handed to you.

Apply: https://jobs.ashbyhq.com/neo-tax/

  • JavaScript
  • TypeScript
  • Node.js
  • PostgreSQL

CivTiq - Lead SWE - Toronto - $130,000 – $180,000 CAD - Founder-level equity We are building enterprise-grade, white-label reporting infrastructure for municipal governments across North America.

Full technical decisions

Multi-tenant cloud architecture supporting Canadian data residency requirements Compliance framework buildout: SOC 2, PIPEDA, MFIPPA, security standards relevant to Canadian municipal procurement

Technical hiring as team grows

5+ years in cloud infrastructure or backend engineering with direct exposure to multi-tenant architecture, data residency, and uptime SLA commitments

Shipped production systems where a bug has legal or compliance consequences

Hands-on with SOC 2, ISO 27001, HIPAA, PIPEDA, or equivalent regulated environments

Can review and challenge AI-generated code and architectural decisions. Not threatened by AI tooling, not blindly trusting it

Can represent the technical platform for government IT evaluators

Comfortable inheriting existing TypeScript / Node.js / PostgreSQL codebase

Located in Toronto or willing to relocate

ben [at] civtiq [dot] com

  • Python
  • PyTorch
  • AWS
  • GCP
  • Azure
  • Machine Learning
  • Full-time

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

We are a Machine Learning consulting company that builds end-to-end Machine Learning 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/knowledge-hub/blog and https://www.ml6.eu/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 to solve hard Machine Learning tasks and help bring these application into production by building data pipelines and cloud infrastructure on all of the major cloud providers (GCP, AWS, Azure).

Open roles include:

• Senior/medior AI Engineer

• Senior AI Project Manager

• Chief Product Owner

and many more!

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

Posted about 1 hour ago by konz

  • Full-time

Lysk | lysk.ai | AI/Geo Engineer | Full-time | Warsaw / Paris

Lysk is a European defence startup, based between Paris and Warsaw. Our mission is to create modern software tailored for hostile environments. Our customers include European military and police units. We are in stealth but have already been recognised as one of France’s top 20 seed companies. Backed by Project A, Europe’s leading defence VC, and angels including the founders of Cloudflare, Quantum Systems, and ElevenLabs. We’re assembling a world-class team at the intersection of modern software and defence. We do not work on weapons systems or hardware products.

Currently we're looking for:

- Junior LLM engineer (gguf, on-prem models, llm validation and pipelines)

- Junior Voice AI engineer (we need customised STT models)

- Senior GEO-AI engineer (interpreation of speech-based geographical information)

Posted about 1 hour ago by majke

nelalsal

  • Python
  • Rust
  • TypeScript
  • GraphQL
  • AWS
  • Terraform

Strobe Power | Founding Engineer | ONSITE (Brooklyn or SF) | https://strobepower.com

AI data centers are creating a massive new wave of electricity demand, and the grid is already stretched. Strobe is building an autonomous power company to help meet that demand: software that turns buildings, batteries, EVs, and generators into a distributed power plant that can buy, sell, and dispatch electricity in real time.

We’re a 6-person, well-funded team backed by top investors. This is early, high-ownership, and very real-world: the software you build will control physical assets and move money in energy markets. We are the only company actively trading distributed power in New York - the space is entirely new and unlocked by recent FERC regulation.

I’m looking for a staff engineer to own the data integrations and cloud infrastructure that make the whole system work. That means connecting to utilities, grid operators, OEM hardware, weather providers, and our optimization engine — then making sure it all runs reliably when market events are happening and dollars are on the line.

You’d work on things like:

* Wholesale market integrations with NYISO, CAISO, ERCOT: pricing, capacity markets, dispatch signals * OEM hardware integrations for monitoring, control, and telemetry * Utility data pipelines, including Green Button Connect / ESPI, interval usage, billing, and meter data from utilities like ConEd, PG&E, and SCE * Weather forecast pipelines feeding our scheduling engine * Event-driven AWS infrastructure using Lambda, API Gateway, AppSync/GraphQL, EventBridge, IoT Core, Timestream, Amplify, and CloudWatch * Terraform IaC, observability, alerting, and the reliability work needed when downtime has real financial consequences

Good fit if you have deep AWS experience, have used Terraform seriously in production, and write a lot of Python. Energy experience is a plus, but not required. Experience with utilities, government APIs, OEMs, hardware, telemetry, or other “real world is messy” systems is very relevant.

Stack: Python, TypeScript, Rust, Terraform, AWS, GraphQL/AppSync, MQTT, Grafana. We use an AI-agent-optimized monorepo and are investing heavily in agent-enabled engineering efficiency.

Small team, no layers, high trust.

Apply: keeley@strobepower.com or https://strobepower.com/careers. Please mention Hacker News.

  • Full-time

Northstar Security | Software Engineer | SF Bay Area | Onsite | Full-time

We're a seed-stage startup building the context layer for agentic cybersecurity - if you're in the SF Bay Area reach out to alex@northstar.security

  • Python
  • PyTorch
  • Linux
  • Machine Learning
  • Contract

Laminar Engineering | Full-Stack CV/ML Systems Engineer | Contract | REMOTE

Laminar Engineering builds real-time computer vision systems for airborne detection and tracking of drones, combining multispectral sensing and edge inference. We’re delivering this for a client, and we’re looking for a versatile engineer to join the R&D effort. This is a role for someone who thrives with autonomy when given a clear end state. More details to be shared with the right candidates.

The role spans the whole pipeline, from data to deployed system: CV/ML on NVIDIA edge devices (Jetson / TensorRT / DeepStream), real-time video processing and multi-object tracking, camera/gimbal control, dataset collection and curation, model training and evaluation, backend infrastructure and APIs, and operator-facing dashboards. You’d own deployed vision systems end to end, including diagnosing and fixing real-world failures in live video.

Strong fit: applied CV and perception, including tracking, real-time pipelines, and NVIDIA edge deployment, plus strong Python and comfort across the stack. Relevant experience: PyTorch, TensorRT/ONNX, DeepStream/GStreamer, embedded Linux, and frontend work for operator tooling.

Remote contract, flexible hours, some overlap with UTC-05 preferred.

Email hiring@laminr.co and mention HN.

Posted about 1 hour ago by snzke

  • Python
  • Flask
  • PostgreSQL
  • Full-time

Veedma | Founding Product Engineer + Founding Growth Engineer | Remote (US) | Full-time | $150-200k + 1.0-1.25% equity | https://app.dover.com/jobs/veedma

Veedma is a telehealth practice for men's hormonal and sexual health. We treat low testosterone, ED, and vitamin D deficiency in men 18 and up, fully online. Cash-pay subscription covers consultations, lab panels twice yearly, prescribed medications, and unlimited messaging. Clinically Enclomiphene-only; we don't offer testosterone replacement therapy.

Founder-led: an MD urologist (CEO) and a software CTO (ex-Yva.ai, acquired by Visier). The platform is AI-native by default: both founders code in Claude Code every day, production calls OpenAI's API from Python, Akute is the EHR, Stripe handles billing.

Two founding seats, both reporting to the founders directly:

* Founding Product Engineer ($160-200k + equity). Python/Flask/Postgres/Celery. Own patient flows, EHR and billing integrations, internal clinical tooling, and the in-product LLM layer. 7+ years shipping production web apps, most of them in healthcare. Apply: https://app.dover.com/apply/Veedma/8f5e6d01-75f1-46a8-b5b7-9...

* Founding Growth Engineer ($150-190k + equity). A builder who happens to do growth. No paid budget, no agency. You ship landing pages, scrapers, creator outreach pipelines, referral loops. 7+ years in organic / partnerships growth, most of them in healthcare. Apply: https://app.dover.com/apply/Veedma/d39d76d3-e968-407c-b268-0...

Bar for both: Claude Code is your primary tool (6+ months daily, you write skills and wire up MCP servers). Healthcare in your background and where you want to stay. AI-native, not AI-curious.

Both: remote US, async-first with US-hours overlap, full-time, 1.0-1.25% equity. All roles: https://app.dover.com/jobs/veedma

  • JavaScript
  • Python
  • SQL
  • PostgreSQL
  • Chef
  • Full-time

Odoo | Software Developer | Hybrid (Belgium, 3 days/week) | Full-time | Visa + €10k Signing Bonus | https://www.odoo.com/r/4zN

Odoo builds open-source business apps used by millions. We're hiring software developers to work on our Python/PostgreSQL backend, fast JS framework, mobile apps, website builder, and more.

Why join us:

- €10k signing bonus - Visa sponsorship + relocation support (contains flight ticket + airport taxi + 1 month free housing) - No clients, no deadlines — just clean, open-source code - Pick your team after 3 weeks of onboarding - Great team, countryside office (with chef!), flexible hours

You:

- Master a programming language - Proficiency in object-oriented programming - Strong in SQL and relational database, data structures, and DB design - Passionate, autonomous, and eager to build real stuff

Apply → https://www.odoo.com/r/4zN

  • dbt

Global Partners — Senior Director, Data Engineering Location: Waltham, MA (moving to Newton, MA within the next month) Pay Range $182,300.00 - $291,500.00 Fortune 500 energy company (fuel distribution, terminals, retail, etc.).

Hiring a Senior Director, Data Engineering to lead our data platform (Snowflake, dbt, Dagster, DataHub), team, and strategy. Actively hiring- Apply: https://careers.globalp.com/senior-director-data-engineering...

  • AWS

SecureBio Detection | Senior infrastructure engineer; [senior] software engineer (high-performance pipelines)

Cambridge, MA, USA (metro Boston) | ONSITE strongly preferred; REMOTE (US east coast) possible for exceptional candidates

SecureBio is a nonprofit working to protect the world from catastrophic pandemics. We operate the world’s largest metagenomic biosurveillance network, which performs daily sequencing of wastewater samples and nasal swabs to screen for emerging pathogens. Our computational team develops detection pipelines responsible for rapid processing of deep sequencing data in order to flag potential threats.

I'm the hiring manager for two roles:

- Senior infrastructure engineer, to own cloud infra, devops, CI/CD, AWS security, etc. Job posting should be up by this time tomorrow.

- [Senior] software engineer focused on high performance data pipelines. https://securebio.org/careers/2026-software-engineer-pipelin...

Prior experience with biology or bioinformatics is not required. If you're interested, feel free to drop me a line; email is in my profile.

https://securebio.org/careers/

  • C
  • JavaScript
  • SQL
  • Node.js
  • PostgreSQL
  • REST
  • Next.js
  • React
  • Full-time

SalesJack | Toronto, ON, Canada | Hybrid | Full-time

SalesJack is a sales software platform (CRM + prospecting service) for independent businesses in the construction supply industry. Growing quickly and profitably; building out our engineering team in Canada. Stack: Next.js, Node, Postgres, BullMQ, Snowflake.

-- Implementation Engineer — C$120k–140k

Own the technical side of bringing new customers live: ERP integrations, product category mapping, data migration, on-site training, plus post-launch reports and custom integrations. You work directly with founders, engineers, and the dealers using the product. Looking for 2+ years in solutions/implementation/data engineering, strong SQL (Snowflake/Postgres), comfort with REST APIs (auth, pagination, rate limits), and interest in construction supply ERPs (BisTrack, DMSi Agility, ECI Spruce).

Apply: https://jobs.ashbyhq.com/salesjack/3ab994a1-00fa-4826-8069-7...

-- Senior Full Stack Engineer — C$180k–200k

Own major product surfaces end-to-end, from talking to customers and scoping through architecture, implementation, and iteration. No PM layer — engineers closest to the problem own the solution. Looking for 8–10 years full stack, deep React/Next.js, strong Node.js in production at scale, advanced Postgres (multi-tenant, query optimization), auth/RBAC in multi-tenant B2B, and BullMQ or similar (Sidekiq, SQS, Temporal). Real product instincts required.

Apply: https://jobs.ashbyhq.com/salesjack/7ba3df69-8edf-4496-9e12-9...

  • Go
  • JavaScript
  • Next.js
  • React

Makeship | Senior Software Engineer + Staff Engineer (Systems & Integrations) | Toronto, Canada | REMOTE (Canada only)

Makeship empowers influencers, creators, and brands of all sizes to develop and launch limited-edition products that matter to their fans. We handle the design, manufacturing, and fulfillment (plushies, apparel, and more). Check out our site (https://www.makeship.com/) to see some of the anime and gaming merch. We're profitable, did $65M+ CAD in sales last year, and have been Great Place to Work certified three years running.

Two open roles: Senior Software Engineer, full-stack (React/Next.js + Go) on the core platform. You'll lead projects, own complex features end to end, make architectural calls, and mentor other engineers. https://makeship.bamboohr.com/careers/76

Staff Engineer, Systems & Integrations, owning our internal systems and the integrations layer connecting Shopify, HubSpot, Airtable, and others. You'll own the roadmap and work directly with ops, sales, and marketing to make their workflows dramatically more efficient. https://makeship.bamboohr.com/careers/78

If you apply, please note that you found us through Hacker News.

  • Full-time

Odyssey | Sr. Security Engineer | Full-time | Remote (US) or NYC

Odyssey is building the leading financial technology platform for school choice. We help families access funding for tuition, tutors, curriculum, software, and enrichment programs—empowering them with greater educational opportunities.

We’re well-funded, backed by top investors including Andreessen Horowitz (a16z), and we are rapidly scaling.

As Odyssey's first Security Engineer, you'll have full ownership of our security posture — shaping strategy, building programs from the ground up, and driving best practices across our entire technology stack and product suite. This is a high-impact, high-visibility role where your decisions will directly influence how we protect our customers, vendors, and employees.

You'll partner closely with cross-functional teams to embed security into everything we build and ship, champion solutions to emerging security challenges, and ensure we stay ahead of an evolving threat landscape. You're someone who embraces AI tools to work smarter — whether that's accelerating threat detection, streamlining vulnerability analysis, or improving how we respond to incidents.

https://jobs.ashbyhq.com/odyssey