Mid/Senior Full-Stack Developer

Intro About BidX BidX builds a SaaS platform that automates Amazon advertising for sellers and agencies — bid management, performance analytics, and reporting built directly on top of the Amazon Advertising API, Selling Partner API, and Amazon Marketing Cloud (AMC). We're a growing engineering team looking for an experienced contractor to strengthen our development capacity Your area of responsibility will include the following About The Role We're looking for an experienced, hands-on developer to join our team on a part-time (20h/week) contractor basis. You'll work closely with our ~10-person engineering team on real product features and data pipeline work — not busywork. This role suits an independent contractor who wants substantial engineering ownership without a full-time commitment, and who can work productively with minimal ramp-up time given prior mid/senior-level experience. Tech Stack Backend: PHP 8.x, Laravel, static analysis via PHPStan/Larastan Frontend: Vue 3, PrimeVue component library Data: MariaDB, ClickHouse (large-scale analytical queries), Amazon Advertising API / Selling Partner API / AMC (SQL) Infra: AWS Elastic Beanstalk, CI/CD via Buddy Testing: PHPUnit What You'll Work On Building and maintaining features across our Laravel backend and Vue 3 frontend Writing and optimizing ClickHouse/MariaDB queries for advertising performance data at scale Contributing to data pipelines that connect Amazon's advertising and seller APIs into our platform Collaborating with the team on code review, static analysis (PHPStan/Larastan), and test coverage Working within an established architecture (component patterns, caching layers, translation/localization tooling) rather than building everything from scratch What You Need To Bring What We're Looking For Several years of professional experience with PHP and a modern framework (Laravel experience is a strong plus) Comfortable with Vue.js (we use Vue 3 with the Options API) SQL proficiency, ideally with MariaDB / ClickHouse Pragmatic coding style: you value simplicity over premature abstraction and write maintainable code Able to work independently within a defined scope, and communicate clearly async (this is a part-time, fully remote role) Interest in advertising technology, marketplace/e-commerce data, or SaaS products is a plus Why us? What We Offer 20 hours/week, flexible scheduling around your other commitments Freelance/contract engagement (please indicate your day rate or hourly rate expectations) Direct ownership of real features — not isolated tickets A small, technically strong team where your input on architecture and tooling decisions is genuinely valued 100% remote Contact Curious? Join the BidX family today! Get started with us! Your contact, Dalia from the People & Organization team, looks forward to getting to know you. Simply send her your resume and any relevant certificates - she’ll get back to you right away. Diversity is our strength - a workplace free of prejudice! Apply to join us regardless of your religion, cultural or national background, gender, sexual identity, age, or any disability. We value the uniqueness of each individual and promote a respectful and supportive work environment. We look forward to welcoming you to our team! About Us BidX offers a software solution for automated and optimized advertising for merchants on Amazon. Through rule-based and self-learning algorithms, keyword management and bid adjustments can be automated. This allows sellers and vendors to use their advertising budgets more efficiently, increase their profits, and significantly reduce their workload. Relative advertising costs are reduced by an average of 32 percent in the first 8 weeks alone. Numerous international retailers and agencies from 42 countries already rely on the BidX software solution.