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

Appfire; Polska; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Equity

Vacation days

Wellbeing days

Volunteer time

Learning & Development

Private healthcare

Life insurance

Lunch card

Job summary

Appfire, a remote-first software company with 800+ employees across 28 countries, is looking for an experienced software engineer to help evolve JMWE and JMCF products. You will work on full-stack JavaScript/TypeScript applications, shape customer experiences, and drive performance improvements.

In this role you will participate in all stages of the product lifecycle, mentor teammates, and collaborate with product managers, UX designers, and support engineers to deliver scalable, secure, and

Qualifications

• 5+ years delivering scalable, high-volume cloud applications.
• Proficient in full-stack JavaScript/TypeScript.
• Experience with cloud architectures and performance/security considerations.

Responsibilities

• Join a cross-functional product team to build JMWE/JMCF products.
• Design, develop and maintain scalable Node.js/TypeScript apps.
• Advocate testing, code reviews, and CI/CD practices.
• Mentor teammates and contribute to team culture.
• Collaborate with customers and internal stakeholders to improve products.

Skills

Full-stack JavaScript

TypeScript

Effect.js

Express.js

AI models

Cursor

Tools

Effect.js

Express.js

Cursor

AI models toolkits

Job description

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.

Here you can read some of our customer stories: https://appfire.com/resources/resource-library/customer-stories

About the role:

Are you passionate about building awesome products? Do you get excited about being part of a team that really cares? Can't resist suggesting user experience improvements, whether it's about performance optimizations or UI tweaks? Then you've landed on the right page. The Astroneers are the team you've been looking for: highly engaged and extra-supportive teammates dealing with exciting technical challenges in a transparent environment, and much more.

The 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 a piece of art, and we will count on your experience and intuition to push them further.

What you'll do:

• Join a self-organizing, cross-functional product team and cooperate closely with other Software Engineers, Product Manager, Team Leader, and with other specialists like Product Marketeers or Support Engineers.
• Design, build, and maintain efficient and scalable applications written mainly in Effect-TS and Node.js.
• Follow and establish the best engineering practices: automated testing, code review, pair programming, 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 and honestly on what would be the best for our customers and the business: you will be part of discussions about the future of our products and Appfire.
• Be the change you seek - champion improvements within the team and products, adopting a proactive stance on innovation and process enhancement.
• Benefit from the seamless access to the Support team, quick feedback and direct communication with our customers.

What we would like to see:

• Proven record (5+ years) of delivery of multiple scalable, high volume traffic cloud applications.
• Proficiency in full-stack JavaScript or TypeScript applications. Knowledge of Effect.js and Express.js is highly beneficial, and experience with using different AI models and tools like Cursor would be advantageous.
• Product-oriented mindset. Our teams shape the products they own and we expect you to influence product-related decisions.
• Truly engineering approach to solving problems. Good theoretical foundations of computer science (e.g. algorithms and computational complexity, OOP) are super practical in the ever-changing landscape of technologies.
• Good understanding of modern Cloud architectures, and practical experience implementing them.
• Deep architectural understanding of web applications, including performance, quality and security aspects.
• Desire and ability to mentor other team members and shape the team's culture.
• Command of English at level B2 or higher.

Nice to have:

• Experience with Atlassian Forge applications.
• Good understanding of Jira and/or Jira Service Management.
• Knowing how to play Bang! (we really need a new champion )

Benefits & Perks

• Equity: every Appfire team member is eligible for company equity, fostering a true sense of ownership and connection to our growth.
• Time Off & Wellbeing
• 26 paid vacation days annually, regardless of tenure
• Wellness Days - one fully paid day off each month for an unplanned emergency, rest, or recovery needs available on an ad-hoc basis (not carried over month-to-month)
• 24 hours of paid volunteer time to support meaningful causes outside of work
• 3 fully paid volunteering days each year through Appfire Town, our Corporate Social Responsibility (CSR) program supporting local communities
• Learning & Development : grow with Appfire University - our custom, on-demand learning platform designed to support continuous learning and professional development.
• Health & Insurance
• Fully covered Luxmed private healthcare plan
• Option to extend coverage to your partner or add personalized upgrades
• UNUM life insurance, fully paid by Appfire
• Lifestyle & Benefits
• MyBenefit Platform with 150 PLN per month to spend on: a Multisport card, shopping, restaurants, entertainment experiences
• Lunch Card with 300 PLN monthly for groceries or dining out