LOCATION REQUIREMENTS (NO EXCEPTIONS)We move fast ship often and use modern AI tooling (Cursor in particular) as a core part of our day-to-day workflow. Above all we are looking for someone with a strong bias toward action. You'd rather ship something today learn from it and iterate than spend a week debating the perfect approach.• A Django DRF monolith (Postgres Redis RQ workers Docker)• Two Ruby on Rails services (Rails 7 8 Postgres Puma)• A Node.js TypeScript service (Express Drizzle Playwright Puppeteer)• Solid fundamentals in OOP relational databases (Postgres) REST API design background job processing and caching (Redis).• Experience with CI CD pipelines container orchestration observability (Sentry logging metrics) and zero-downtime deploys.• Familiarity with AWS (S3 Lambda etc.).• Experience with payments (PayPal Stripe Brex etc.).• Experience with web scraping headless browsers (Playwright Puppeteer). ... Click to read more.

Front-End Developer (Full-Time Remote)Implement and optimize charting and data visualization features leveraging libraries such as TradingView or D3.js to support a wide variety of chart types (tables multi-line chart packs etc.).Core stack (mandatory)React 18 + Next.js (App Router) TypeScript TailwindCSS.Strong command of state management for high-frequency data (e.g. Zustand Redux Toolkit useSyncExternalStore).Data virtualization (react-virtualized react-window) for large tables (orders positions trades).Practical experience with professional charting libs (e.g. TradingView Charting Library Lightweight Charts Highcharts D3).Multi-pane layouts (price volume indicators) with synchronized crosshairs and time scales.Client-side caching and invalidation (e.g. TanStack Query React Query).Role-based feature gating (read-only vs trading permissions).Unit tests for critical transforms parsers (e.g. Playwright Vitest for E2E interaction flows)Experience with desktop-class layouts (drag-to-dock panels resizable grids).Exposure to WASM for heavy computations (e.g. indicator calculations).Familiarity with FIX crypto venue nuances (tick sizes lot sizes trading sessions).1) **UI migration (hrzk → Next.js):**Pick ONE area from the provided `hrzk.html` (e.g. Orders+Trades Positions table Equity Drawdown).Explain how you’d migrate it to **React 18 + Next.js (App Router) + TypeScript + Tailwind**.(We care about your trade-offs not “the one true way”.)2) **Real-time data ingestion:**3) **Backpressure + UI thrash prevention:**Mention how you’d combine this with **state management** (e.g. Zustand RTK useSyncExternalStore) and **virtualization** (react-window react-virtualized).4) **Charting approach:**We need fast readable data-rich charts (equity drawdown doughnut bars etc.).- which charting library you’d choose (TradingView Lightweight Charts Highcharts D3 etc.)5) **Auth + role gating:**Explain how you’d handle JWT OIDC token refresh and **WebSocket authentication** then implement role-based gating (read-only vs trading).6) **Remote ownership + teamwork:**What to expect (our interview process): ... Click to read more.

Multi-cloud platform infrastructure (AWS GCP Azure): networking IAM DNS TLS and compute fleets.IaC (Terraform Pulumi) CI CD pipelines rollback workflows and release processes.Infrastructure for multi-tenant isolation workloads (VMs containers or sandboxes). ... Click to read more.

We have multiple projects available for Senior Developers. If you have 4+ years of commercial software development experience and are proficient in any of the following areas: React & Ruby PHP & Angular PHP & Vue Vue & Node.js React & .NET Android & iOS Angular & .NET Angular & Node.js Vue & .NET Python & Vue MLOps React & Java Data Science Blockchain (Web3 Solidity Solana) Symfony & React Symfony & Vue Symfony & Angular Symfony & JavaScript & Next.js & TypeScript Data Analysis React & PHP Data Engineering AI Engineering Data Annotation DevOps Svelte & Python Svelte & Node Svelte & TypeScript Rust Shopify & JavaScript Vue & Nuxt Python & Node Angular & TypeScript Ruby & Ruby on Rails React Native & Ruby React Native & Python PHP & Laravel .NET & C# Java & Spring Unreal Engine & C++ Python & LLM Unity Machine Learning Engineering — we’d be happy to connect and match you with a suitable project.Magic Box (we are looking for the best project for you). Europe LATAM the U.S (if you are an owner of W-9 ben form) Canada Asia (Japan Singapore South Korea Philippines Indonesia) Oceania (Australia New Zealand Papua New Guinea) and the the UK. However we have some exceptions. ... Click to read more.

Familiarity with cloud platforms (ideally Azure)We also only consider direct applicants with a maximum time-zone difference of + - 2 hours from Switzerland (GMT+2). ... Click to read more.

Remote (anywhere with CET overlap) or Brussels-based (Belgium) <ul class="[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3"> <ul class="[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3"> <ul class="[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3"> ... Click to read more.

• Excellent coding skills and solid development experience (Java Python .Net etc.) with debugging and problem-solving skills• Knowledge of architecture design - Microservices architecture containers (Docker &amp; k8s) messaging queues• Certification in one or more of the hyperscalers (Azure AWS and Google GCP) - otherwise you can obtain certifications with Kyndryl... Click to read more.

Scaled Agile (SAFe)Assist in the selection integration and use of DevOps tools (e.g. source control test automation deployment frameworks). ... Click to read more.

API design (REST GraphQL or equivalent)Distributed systems fundamentals (scalability fault tolerance eventual consistency)401(k) retirement savings plan&nbsp; ... Click to read more.