Senior Fullstack Engineer (TypeScript, Node.js and Effect.js) - Appfire

At Appfire, we believe that great work happens when people get to choose how they work. After 20 years of creating software that empowers teams to break silos and collaborate seamlessly, we've learned that one size does not fit all. We’re a team of 800+ employees, working remotely across 28 countries. Our flagship products include: JXL, Comala Document Management, 7Pace Time Tracker, Jira Misc Workflow Extensions, and BigPicture.

About the Role

The Astroneers team primarily focuses on the Jira Misc Workflow Extensions (JMWE) and Jira Misc Custom Fields (JMCF) products while regularly embarking on side adventures like helping other teams, experimenting with Slack integration, or exploring AI capabilities. You’ll be involved in every stage of the product lifecycle: ideation, design, development, release, and maintenance. Our products are used by thousands of companies from various industries to make their Workflow & Automation processes seamless.

What You'll Do

• Join a self-organizing, cross-functional product team and cooperate closely with Software Engineers, Product Managers, Team Leaders, Product Marketeers, and Support Engineers.
• Design, build, and maintain efficient and scalable applications written mainly in Effect-TS and Node.js.
• Follow and establish engineering best practices: automated testing, code review, pair programming, and YBIYRI (you built it you run it).
• Automate cloud services and configuration management to ensure scalability, operational efficiency, and cost optimization.
• Share your thoughts openly on product strategy and the future of Appfire.
• Champion improvements within the team and products, adopting a proactive stance on innovation and process enhancement.
• Benefit from direct communication with customers and quick feedback loops.

What We're Looking For

• 5+ years of proven experience delivering scalable, high-volume cloud applications.
• Proficiency in full-stack JavaScript or TypeScript applications.
• Strong knowledge of Effect.js and Express.js is highly beneficial; experience using AI models and tools like Cursor is an advantage.
• Product-oriented mindset with the ability to influence product decisions.
• Solid computer science foundations (algorithms, computational complexity, OOP).
• Strong understanding of modern Cloud architectures and practical experience implementing them.
• Deep architectural understanding of web applications, including performance, quality, and security aspects.
• Ability and desire to mentor team members and shape team culture.
• Professional working proficiency in English (B2 level or higher).

Nice to Have

• Experience with Atlassian Forge applications.
• Good understanding of Jira and/or Jira Service Management.

Benefits & Perks

• Equity: Every team member is eligible for company equity, fostering true ownership.
• Paid Time Off: 26 paid vacation days annually + 1 fully paid Wellness Day per month for ad-hoc rest or emergencies.
• Volunteering: 24 hours of paid volunteer time + 3 fully paid volunteering days annually through Appfire Town.
• Learning & Development: Custom, on-demand learning via Appfire University.
• Health & Insurance: Fully covered Luxmed private healthcare plan (with option to extend to partners) + UNUM life insurance.
• Lifestyle Perks: MyBenefit Platform allowance (150 PLN/month for Multisport, shopping, dining) + Lunch Card (300 PLN/month).
• Remote Work Support: 200 PLN net/month home office allowance to help cover internet and electricity costs.