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Senior Full Stack Engineer, Authentication
Senior full-stack engineer joining Linktree's Auth team (Visible Hands), owning signup, login, social auth, session/token lifecycle and identity services for 70M+ users. Work spans TypeScript, Node.js, React, GraphQL and AWS, partnering with Product and Security on a hybrid basis from Melbourne or Sydney.
Senior Full-Stack Engineer: PHP/Laravel, React & AWS (4d)
Senior full-stack engineer at Safer Places Network building features across API, web portals and mobile apps, plus reviewing PRs, managing releases and maintaining AWS deployment pipelines, monitoring and security. Core stack: PHP/Laravel, TypeScript/React, React Native on AWS, with SOC 2 / ISO 27001 compliance work.
Senior Full Stack Developer
Contract senior full-stack developer building features across the API, web portals and mobile app of a safety platform serving government and police clients, using PHP/Laravel, TypeScript/React, React Native/Expo and AWS. Also runs releases, production support and SOC 2/ISO 27001 compliance work. $600-700/day, 4 days a week, initial 3-month contract.
Senior Full Stack Developer
Senior full stack developers at Profectus sustain, remediate and enhance a secure Angular/TypeScript web application inside an Australian Government agency, providing technical leadership, security/SBOM remediation, DevSecOps uplift and integration with an enterprise data platform. Onsite in Canberra; requires Australian citizenship and AGSVA NV1 clearance.
Senior Fullstack Engineer: React/Node & Data Platforms
Senior fullstack developer in Medellín building the IQ Billing platform end-to-end — React frontend, Node.js backend, down to the data layer — supporting daily claims, payments, and revenue processing with distributed engineering teams across LatAm, the Philippines, and the US.
Senior Full-Stack Developer (Contact Center) - Contrato a termino fijo
Senior full-stack developer on a 90-day fixed-term contract, on-site in Cali, to build and maintain WeKall's Engage 360 cloud contact center: shipping features with the dev squad, closing maintenance tickets, and assessing AWS infrastructure costs and performance. Stack spans Node.js/Java, React/Angular, PostgreSQL/DynamoDB, and Asterisk/SIP telephony with AI voice integrations.
Senior Full Stack Developer - Remote Medellín
Senior full stack developer at Evertec, a Latin American transaction-processing company, building and maintaining web apps, Android apps, and REST APIs. Remote role in Medellín using Vue 3, Kotlin/MVVM, C#/.NET 8, SQL/NoSQL databases, and automated testing.
Senior Full-Stack Developer
Senior full-stack developer (8+ yrs) on-site in Bogotá building an AI-powered content platform: React/Next.js/TypeScript frontends, Python/FastAPI/Node.js backends, GenAI integrations via OpenAI and LangChain, PostgreSQL/Snowflake data, and Docker/Kubernetes CI/CD deployment, plus mentoring.
Full Stack Developer Sr Specialist
Senior full-stack developer at Evertec (a Latin American payment/transaction processing company) building web features with Vue 3/Quasar/Pinia, Android apps in Kotlin (MVVM), and C#/.NET 8 REST APIs for the PVOT point-of-sale system, including Couchbase data work, offline sync, and EN/ES localization. Remote role based in Medellín, Colombia.
Senior Full-Stack Engineer — Hybrid, AI‑redaction Platform
Senior full-stack developer on Justice Digital's Justice Redact team, building a secure AI-assisted service that redacts personal data from OSARs, working across frontend and backend with OSARs operations. Permanent, hybrid role based in London (national options available), using TypeScript and modern web technologies.
Senior Full-Stack Engineer: AI & Cloud, Equity
Vanrath is hiring a Senior Full-Stack Engineer for a Belfast team building modern web apps, cloud infrastructure and AI-integrated, data-driven products. Day to day involves JavaScript/React front-end work, backend/API development and AWS cloud, owning solutions across the full development lifecycle.
Senior Full Stack Engineer - React/TS/Node - £80-100K
Senior full-stack engineer at an AI-native fintech startup building a portfolio-management platform for private investors. Day to day: design APIs and data models and build high-performing UIs with React, TypeScript, Node.js, Next.js, GraphQL and AWS, hybrid with 3 days/week in the London office.
Senior Full-Stack Engineer - Cloud-Native FinTech Platform
Senior full-stack engineer joining Vanrath's Belfast team to design, develop and deploy a cloud-native fintech platform using TypeScript, React and large-scale distributed systems; owns features end-to-end, contributes to architecture, and mentors junior engineers in a hybrid, agile environment.
Senior Full Stack Engineer Engineering Nottingham, UK
Senior full-stack engineer at a restaurant-tech company, owning features end to end across a restaurant dashboard and customer ordering journey — React frontends, server-side APIs and PostgreSQL data models — from design through production release, while mentoring less experienced engineers.
Senior Full Stack Engineer — Fintech, Hybrid London
Senior Full Stack Engineer (hybrid, London) for an AI-native fintech platform, owning APIs, data models, and UI while working with product and design on investing tools. Core stack includes React, TypeScript, Next.js, GraphQL, and AWS.
Senior Full Stack Engineer: PHP/Symfony & Angular
Senior Full Stack Engineer at Taskr, a fast-growing scale-up building a global, API-first data platform. The role spans PHP/Symfony on the backend and Angular on the frontend: owning complex features, contributing to architecture, and mentoring teammates in a cross-functional squad.
Senior Full Stack Developer - Justice Redact
Senior full-stack developer on the UK Ministry of Justice's Justice Redact team, building an AI-assisted service (with human oversight) that redacts personal data from Offender Subject Access Requests. Hands-on TypeScript front-end and back-end work as the service moves from Alpha to Private Beta.
Développeur Full-Stack Senior (.NET / Blazor)
Senior full-stack developer evolving and improving a business application in a financial (asset management) environment, using .NET 8, C# and Blazor on Azure. Day to day: analyzing specs, building features, API/data integration, testing, deployments and DevOps within an Agile team.