Senior Fullstack JavaScript Developer - Certified Great Place to Work.

Sydney
Engineering – Delivery /
Full-time /
Hybrid
Are you looking for an opportunity to work at one of the best technology companies to work for in Australia? Join 4mation Technologies, as a Senior Fullstack JavaScript Developer. We're a custom web and software development agency based in Sydney, working with blue-chip clients to deliver high-quality solutions, as well as digital strategy and best in class design solutions.

As a Senior Fullstack JavaScript Developer in our team, you'll work with passionate people who love technology and share the same values. We have a great team culture and offer excellent benefits, including opportunities for professional growth and career advancement.

We are seeking an experienced and motivated Senior Fullstack Developer to lead and mentor our dynamic development team. This role will leverage your expertise in modern JavaScript, end-to-end application architecture and AI/ML to shape innovative, scalable software solutions. As a Senior Developer, you will guide technical decisions, mentor team members, and contribute hands-on to projects while championing best practices.

What you'll do:

    • Lead and mentor junior developers in coding standards, architecture, and best practices. Conduct code reviews, provide constructive feedback, and foster a culture of collaboration and continuous improvement.
    • Shape the technical direction of projects, focusing on scalability, innovation, and strategic decision-making.
    • Collaborate with Product Managers and UX/UI Designers to build responsive, cross-platform web applications. Optimize front-end performance for compatibility across browsers and devices.
    • Architect and maintain server-side logic and APIs using Node.js, ensuring data integrity, security, and efficient access patterns.
    • Lead AI/ML solution integration to enhance product features, leveraging relevant tools and frameworks for seamless tech stack integration.
    • Define API contracts, bridge front-end and back-end components, and collaborate with cross-functional teams to troubleshoot complex issues and optimize the application stack.

What do you need to have?

    • Bachelor’s or Master’s degree in Computer Science, Engineering, or related field (or equivalent experience).
    • 6+ years of fullstack development experience, with strong proficiency in JavaScript.
    • Proven experience in AI/ML application and integration, with a strong understanding of relevant frameworks and algorithms.
    • Advanced expertise in front-end technologies, JavaScript frameworks, and back-end development with Node.js, including server-side frameworks and database management.
    • Strong hands-on experience with cloud platforms and containerization technologies.
    • Proven ability to lead and mentor a team, creating a positive and productive work environment alongside strong communication skills for effective cross-team collaboration and client interactions.

What is nice to have?

    • Knowledge of CI/CD pipelines and automated deployment processes.
    • Contributions to open-source projects, technical blogs, or other developer communities.

Why Apply?

    • Work from our amazing office in Surry Hills and remotely (Hybrid).
    • Grow your skills and career with opportunities for professional development.
    • Collaborate with a team of passionate professionals in a great team culture.
    • Discounts at major retailers including Coles, Woolworths, Amazon, as well as Uber and UberEats.
    • Enjoy excellent benefits, including epic end-of-month celebrations, fully stocked fridge, and the obligatory table-tennis and pool tables.
$140,000 - $160,000 a year
Total Remuneration
At 4mation you'll work on exciting projects in the latest technologies with our innovative clients. Our entire team has your back!
You'll learn from some of Sydney's best technologists and have access to learning material and courses to stay at the top of your game, as well as paid certifications.

Who are we?
4mation Technologies is a custom web and software development agency based in Sydney. 

We work with some of Australia’s leading funded startups, to scaleups to ASX-listed corporates - think companies like Atlassian, LendLease, Merivale, and The Athletes Foot. 

Our award-winning culture has attracted a team of strategists, designers, and developers. We’re design-led and help our clients succeed by identifying opportunities and delivering solutions that people love to use.

Please include a cover letter stating why we want you on our team! We value diversity and welcome candidates of all backgrounds and experiences to apply.