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

Posted 5 Hours Ago
Be an Early Applicant
Hiring Remotely in Spain
Remote
Senior level
Information Technology • Software
Appfire’s mission is to equip and connect every team so they can plan and deliver their best work.
The Role
Build and maintain scalable full-stack cloud applications using Effect-TS and Node.js. Participate in product ideation, design, development, release, and maintenance while collaborating with cross-functional teams. Establish engineering practices including testing, code review, and pair programming; automate cloud services and configuration management; improve performance, quality, security, and operational efficiency; and mentor teammates while influencing product decisions.
Summary Generated by Built In

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 & Flexibility
  • 25 days of annual leave per calendar year (January–December)
  • Up to 10 unused vacation days may be carried over to the following year and must be used by December 31
  • Reduced summer hours to support better work-life balance
  • Flexible bank holidays, allowing employees to exchange one public holiday for another
  • This role is fully remote within Spain, with the option to work from our Bilbao office whenever preferred

Learning & Development: grow with Appfire University — our custom, on-demand learning platform designed to support continuous learning and professional development.

Health & Wellbeing
  • Private health insurance through IMQ or Adeslas, fully covered by Appfire for enrolled employees
  • Family members may also be added at a discounted rate through payroll deduction
  • €400 gross annual sport allowance for gym memberships, outdoor activities, sports equipment, running gear, and other wellness-related expenses

Work-from-Home Support: Appfire provides €50 per month to help cover home office and remote work expenses.

Community & Volunteering: employees receive 3 fully paid volunteering days each year through Appfire Town, our Corporate Social Responsibility (CSR) program supporting local communities.

Market recognition

Appfire has been consistently recognized for company growth, culture, corporate social responsibility, and product excellence and has been included among the Deloitte Technology Fast 500, Inc. Best Workplaces, BuiltIn Best Places to Work, and Inc. 5000. Learn more about our accomplishments, which would not be possible without our team members, partners, and customers: https://appfire.com/awards.

Equal Employer Opportunity (EEO)  

Appfire is an equal opportunity employer and does not discriminate based on race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran status, or any other protected characteristic as defined by applicable law. Our commitment extends to all employment practices, including recruitment, hiring, training, promotion, compensation, benefits, and termination.

Skills Required

  • 5+ years delivering multiple scalable, high-volume cloud applications
  • Proficiency in full-stack JavaScript or TypeScript applications
  • Product-oriented mindset and ability to influence product decisions
  • Strong computer science fundamentals, including algorithms, computational complexity, and object-oriented programming
  • Understanding of modern cloud architectures and practical implementation experience
  • Deep architectural understanding of web applications, including performance, quality, and security
  • Ability and desire to mentor team members and shape team culture
  • English proficiency at B2 level or higher
  • Knowledge of Effect.js and Express.js
  • Experience using AI models and tools such as Cursor
  • Experience with Atlassian Forge applications
  • Understanding of Jira and/or Jira Service Management
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The Company
HQ: Burlington, MA
800 Employees
Year Founded: 2005

What We Do

Appfire is the leading global provider of software that enhances, extends, and connects the world's leading platforms to make work flow any way teams want to work, from planning to product ideation, product development, project delivery, and beyond. Appfire increases the value of platforms such as Atlassian, Microsoft, monday.com, and Salesforce, enabling teams to thrive and do their best work together. With more than one million users, Appfire's popular solutions are helping teams with Enterprise Collaboration, DevOps, Workflow & Automation, Product Portfolio Management, IT Service Management (ITSM), Document Management, Business Intelligence and Reporting, Administrative Tools, Agile Tools, Developer Tools, Time Tracking, Publishing, and Integrations. Appfire has been selling its popular software products on the Atlassian Marketplace since it first launched in 2012, and today Appfire has the most widely adopted portfolio of Atlassian apps across tens of thousands of customers worldwide.

Why Work With Us

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. That’s why at Appfire, you choose. No one knows you better than you do. So join us and customize your experience.

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