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Hiring Company: NitroSaaS

One-liner: NitroSaaS is a technology company that builds high-performance, scalable software solutions delivered through the cloud.

Salary: $3,000/mo - $5,000/mo

Why Join Us:

Role Responsibilities

• Design, develop, and maintain scalable web applications

• Work on both frontend and backend systems

• Collaborate with product managers and designers to deliver high-quality features

Qualitications

Required

• Strong experience with modern JavaScript frameworks (React, Angular, or Vue)

• Experience with backend technologies such as Node.js, Python, or Java

• Experience with database management (SQL/NoSQL)

• Experience building RESTful APIs

• Experience implementing authentication systems

• Experience optimizing application performance

• Strong problem-solving skills

• Ability to mentor junior developers

Senior FullStack Developer

**Mid Level JavaScript Developer | £40,000 - £45,000** We're working with an innovative iGaming powerhouse on this exciting opportunity to build the next generation of web and mobile games. If you are passionate about high-performance JavaScript and want to see your code come to life in a fast-paced, creative environment using Pixi.js and modern ES6+, this is the role for you. Join a collaborative team where you will bridge the gap between technical logic and visual excellence, working alongside world-class artists and designers to deliver seamless gaming experiences to a global audience. This is a fully remote role offering the chance to level up your skills in technical troubleshooting, unit testing, and agile game development. **The Role**

*   Develop and maintain highly interactive mobile and web-based games using JavaScript and Pixi.js.
*   Collaborate directly with designers and project managers to optimize game performance and user engagement.
*   Write clean, maintainable code following ES6+ standards including Classes, Promises, and modern design patterns.
*   Support the implementation of robust Unit Tests and automated testing to ensure a bug-free gaming experience.
*   Contribute to the full software development lifecycle within an Agile framework, from initial briefing to final deployment.

**What You'll Need**

*   Commercial experience with JavaScript (ES6+), HTML5, CSS3, and JSON handling.
*   Hands-on experience with game engines or rendering libraries such as Pixi.js, Phaser, or Three.js.
*   Proficiency with Git version control and a solid understanding of front-end architecture.
*   A problem-solving mindset with the ability to debug complex technical issues and participate in code reviews.
*   Bonus points for experience with Node.js, automated testing frameworks, or a degree in Computer Science.

**What's On Offer**

*   100% remote working flexibility with a supportive, digital-first culture.
*   Strong focus on work-life balance with 25 days holiday, bank holidays, and your birthday off.
*   Comprehensive financial security including a Standard Life pension, life cover (2x salary), and access to employee share schemes.
*   Holistic wellbeing package featuring healthcare savings, support services, and extensive retail/travel discounts.

**Apply via Haystack today!**

JavaScript Developer

**Job Title:** eCommerce Developer - Magento, Shopify, WooCommerce (WordPress **Job Type:** Contractor **Location:** Remote **Job Summary** Join our customers team as a skilled eCommerce Developer, where you will play a pivotal role in architecting and developing innovative, complex eCommerce solutions. As part of an AI Agent project, your expertise will directly contribute to training next-generation AI models and powering state-of-the-art commerce experiences. **Key Responsibilities**

*   Design, develop, and maintain robust eCommerce platforms using Magento, Shopify, WooCommerce (WordPress) or any complex eCommerce build.
*   Implement and optimize seamless API integrations, including REST APIs, middleware solutions, and third-party service connectors.
*   Collaborate with cross-functional teams to create scalable, secure, and high-performance eCommerce applications.
*   Develop and deploy fullstack applications leveraging modern frameworks such as React Native and backend technologies like PHP.
*   Manage cloud infrastructure on AWS, GCP, and Azure to ensure uptime, scalability, and security for all eCommerce services.
*   Work closely with AI engineers to annotate, document, and leverage your development expertise in training advanced AI models.
*   Demonstrate exceptional written and verbal communication while documenting processes and collaborating with stakeholders.

**Required Skills And Qualifications**

*   Minimum 3 years of experience building and maintaining complex eCommerce websites and solutions.
*   Deep proficiency with Magento, PHP, Shopify, WordPress, and React Native.
*   Strong expertise in integrating APIs, middleware, and working with REST architecture.
*   Hands-on experience with Salesforce integrations and eCommerce workflows.
*   Proven knowledge of cloud platforms: AWS, GCP, and Azure.
*   Exceptional written and verbal communication skills, with the ability to explain technical concepts to diverse audiences.
*   Strong problem-solving skills, attention to detail, and a passion for delivering high-quality solutions.

**Preferred Qualifications**

*   Experience working on AI-driven or AI-assisted eCommerce projects.
*   Background in training, supporting, or collaborating with AI/data teams.
*   Demonstrated ability to work on high-stakes, complex builds in a distributed, remote environment.

Shopify Developer - Remote

WordPress Developer - Remote

**Senior NetSuite Developer | £35,000 - £60,000** We're working with a leading enterprise ERP solutions provider on this exciting opportunity. We are looking for a technical powerhouse to drive innovation within a complex NetSuite ecosystem, leveraging SuiteScript 2.x and modern JavaScript frameworks to build high-performance business tools. As a Senior Developer and technical leader, you will be the driving force behind the platform's evolution, transforming business requirements into scalable code. This is a rare chance to blend deep NetSuite expertise with modern web technologies like React.js and Vue.js in a collaborative, remote-friendly environment. **The Role**

*   Lead the end-to-end development of custom NetSuite solutions using SuiteScript 2.x, Advanced PDF Development, and Freemarker.
*   Architect and optimize complex NetSuite Workflows and Web Services (XML/SQL) to streamline enterprise operations.
*   Mentor and guide junior members of the team, acting as a Lead Developer to shape best practices across the full SDLC.
*   Build and integrate sleek front-end components using JavaScript, JQuery, HTML, and modern frameworks like React.js or Vue.js.
*   Manage version control and deployments via GitHub and WebStorm within an Agile development methodology.

**What You'll Need**

*   3+ years of commercial NetSuite development experience with a degree in Computer Science or Software Engineering.
*   Expert-level proficiency in SuiteScript 2.x, JavaScript (ES6+), and Object-Oriented Programming (OOP).
*   Technical mastery of Advanced PDF/Freemarker and building robust integrations via Web Services and AJAX.
*   Proven experience in a Team Lead capacity with the ability to manage tight deadlines in a dynamic, high-growth environment.
*   Familiarity with unit testing, Linode, and PHP is highly desirable to help bridge cross-platform requirements.

**What's On Offer**

*   Competitive salary range of £35,000 - £60,000 based on experience and leadership capability.
*   Remote-friendly working culture that prioritizes output over hours in-office.
*   The opportunity to lead technical strategy and mentor a talented team of developers.
*   A fast-paced, Agile environment where you can work with a modern tech stack (React/Vue/GitHub).

**Apply via Haystack today!**

Software Developer

**About Etera** Etera is building the first AI-native corporate travel platform for the GCC market — designed from the ground up for how businesses in the region actually operate. We're a lean, high-conviction team replacing legacy TMCs with autonomous agents, real-time inventory, and a product experience that doesn't feel like it was designed in 2009. **The Role** We're looking for a Senior AI Fullstack Engineer who can own the full stack — from a smooth React Native mobile experience to TypeScript backend services and the AI/LLM layer that powers our multi-agent infrastructure (OPUS Prime). If you think in systems, ship fast, and find it natural to reason about both user-facing product and underlying model behavior, this role was built for you. **What You'll Own**

*   Mobile-first product: Build and maintain Etera's React Native app (Expo/TypeScript) — booking flows, real-time updates, multilingual UX (Arabic/English)
*   Backend services: Design and extend our TypeScript backend, including booking APIs, supplier integrations (PKfare, RateHawk, Hotelbeds), and webhook orchestration
*   LLM integration: Work directly with Claude (Anthropic API) and our multi-agent OPUS Prime system — building, tuning, and extending AI pipelines for travel intent detection, QA, and automated engineering reports
*   End-to-end delivery: Take features from spec to production. Own the full lifecycle — architecture, implementation, testing, deployment
*   Infra & reliability: Firebase Auth (OTP, Apple, Google), EAS Build/TestFlight pipelines, and CI/CD hygiene across the stack
*   Code quality: Participate in security audits and peer review within a small, high-trust engineering team

**Tech Stack** Frontend / Mobile: React Native + Expo, TypeScript, Firebase Auth (OTP, Apple, Google), EAS Build / TestFlight, Native iOS/Android context. Backend / AI: TypeScript (end-to-end), Anthropic API / Claude, Mastra (agent orchestration framework), LangChain (chains, tools, memory), Zeabur / cloud deployment, REST + Webhook integrations. **You've Built and Run Agent Teams. Plural.** This is not a role for someone who has experimented with LLMs on side projects. We're looking for engineers who have designed, shipped, and actively maintained multi-agent systems — and who understand what it takes to keep them reliable in production.

*   Proven agent team ownership: You have built one or more autonomous agent teams from scratch — defined their scope, wired their tools, managed inter-agent communication, and own their continued operation
*   Self-validating mindset: You don't hand off agent output blindly. You act as the primary validation layer for the systems you build — designing evaluation criteria, catching failure modes, and iterating on agent behavior based on real output quality
*   Cross-domain fluency: Your agents have touched multiple domains — not just one narrow use case. You can reason about agent behavior across booking logic, data quality, QA pipelines, code review, or content generation without needing a specialist in each area
*   Maintenance discipline: You have a track record of keeping agent systems healthy over time — prompt drift, tool failures, context window management, regression testing. Not just shipping and moving on
*   Full-stack integration: You connect agent teams to real product surfaces — not just notebooks or internal tools. Your work shows up in APIs, mobile interfaces, or backend workflows that real users depend on

**Requirements**

*   5+ years of professional fullstack engineering, with meaningful production work in mobile
*   Strong React Native track record — shipped apps, managed build pipelines, handled auth flows
*   TypeScript across the entire stack — mobile, backend, and agent tooling. This is non-negotiable
*   Hands-on with LLM APIs (Anthropic, OpenAI, or equivalent) — prompt engineering, tool/function calling, multi-turn context management
*   AI-augmented development: You use Claude Code, Codex, and similar agentic coding tools to achieve 10x engineering throughput. You know how to create, configure, and orchestrate coding agents — not just prompt them — and you treat them as force multipliers across your daily workflow
*   Mastra: Production experience with Mastra as an agent orchestration framework — workflows, tool definitions, agent memory, and inter-agent coordination patterns
*   LangChain: Solid working knowledge — chains, retrieval, tool use, memory backends, and integration into live backend services. Not just tutorials
*   Ability to operate as a full engineering team member — not a specialist silo. You ship frontend, backend, and AI layers as needed, and you hold the full picture in your head simultaneously
*   Comfort in a lean startup environment: fast cycles, high ownership, minimal process overhead
*   Strong written English. Arabic or German is a genuine plus given our markets

**Bonus Points**

*   Prior work with GDS/NDC/travel supplier APIs (Amadeus, Sabre, PKfare, RateHawk)
*   Experience building multi-agent AI systems or autonomous workflow orchestration
*   Experience with Voice AI agents (Ultravox, Vapi, ElevenLabs, or equivalent) — building or integrating automated voice calling systems
*   Familiarity with DIFC / UAE regulatory context for SaaS or fintech products
*   Background in security auditing or static code analysis tooling

**Benefits**

*   Greenfield Ownership — You won't inherit a decade of technical debt. You'll shape the architecture from the ground up
*   Real AI Work — Not AI as a buzzword. Actual multi-agent systems in production, with full access to our OPUS Prime infrastructure
*   Remote-First — Work from anywhere. Async-friendly culture with a team distributed across Europe and the Gulf
*   Equity + Competitive Package — Meaningful equity stake. Competitive cash compensation. Built for the long term
*   High-Impact Market — GCC corporate travel is a $20B+ market with legacy infrastructure. You'll be building the replacement
*   Fast Cycles — No committee approvals. Ship, learn, iterate. If it breaks, fix it and ship again — better

Senior AI Fullstack Engineer

**Position:** eCommerce Developer

**Type:** Contractor

**Compensation:** $50 - $120/hour

**Location:** Remote

**Role Responsibilities**

*   Design, develop, and maintain robust eCommerce platforms using Magento, Shopify, and WordPress.
*   Implement and optimize seamless API integrations, including REST APIs and middleware solutions.
*   Collaborate with cross-functional teams to create scalable and high-performance eCommerce applications.
*   Develop and deploy fullstack applications leveraging modern frameworks such as React Native and PHP.
*   Manage cloud infrastructure on AWS, GCP, and Azure to ensure uptime and security for eCommerce services.
*   Work closely with AI engineers to annotate and document processes for training advanced AI models.

**Requirements**

*   Have a minimum of of experience building and maintaining complex eCommerce websites.
*   Demonstrate deep proficiency with Magento, PHP, Shopify, WordPress, and React Native.
*   Possess strong expertise in integrating APIs and working with REST architecture.
*   Have hands-on experience with Salesforce integrations and eCommerce workflows.
*   Have proven knowledge of cloud platforms such as AWS, GCP, and Azure.

**Application Process**

*   Easy Apply on LinkedIn
*   Check email for next steps
*   Participate in resume evaluation & interview stage

Senior FullStack Developer

Job Description

Apply now

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