Javascript Developer Microsoft Suite (M365) Plugins/AI CZ

Job description

Department: Editor

Track: Individual Contributor

Reports to: Editor Manager

Direct Reports: N/A

Location: Hybrid (Prague 6)

Schedule: 160h/month

Compensation: Competitive, based on experience

Start Date: Flexible — we’d love you to join soon

About Us

Avvoka is a fast-growing legal technology scale-up specializing in document automation.

Our platform helps law firms and in-house teams draft, negotiate, and manage contracts more efficiently.

We’re trusted by leading global brands — from Magic Circle law firms like AO Shearman to global franchises like HBO.

— and have supported everything from billion-dollar transactions to international franchise deals.

We’re growing quickly, evolving from a bootstrapped start-up to scale-up, with 60% growth in headcount and over 70% organic revenue growth in the past year - so come join us on building a culture that’s innovative, collaborative, and inclusive.

Who You Are

You are a highly experienced and technically strong JavaScript Developer – Microsoft Plugin / AI who thrives on solving complex engineering challenges and building scalable, high-performance integrations.

You enjoy working on the hard stuff, optimising plugin performance, enhancing real-time collaboration, and delivering seamless, low-latency experiences inside Microsoft 365 applications.

You have a deep understanding of modern web technologies, integration patterns, and software engineering best practices.

You take ownership of complex architectural and UI challenges, ensuring solutions are elegant, efficient, and maintainable.

You’ll work as part of a cross-functional team alongside other developers, designers, AI engineers, and legal technologists to build and scale our Microsoft plugin an intelligent extension of the Avvoka platform that transforms how legal professionals create, automate, and interact with their documents.

Key Responsibilities

1.

Develop and Enhance Microsoft 365 Plugins

• Design, develop, and maintain high-quality Office Add-ins for Word, Outlook, and other M365 applications using JavaScript and TypeScript


• Implement secure and scalable integrations with Microsoft Graph API and other Office JS SDKs


• Ensure consistent user experiences between the plugin and the core web platform

2.

Integrate AI-Powered Features

• Work closely with AI engineers to integrate intelligent suggestions, content generation, and automation features directly into the Microsoft plugin environment


• Implement API connections to internal and third-party AI services (e.g., OpenAI, Azure Cognitive Services)


• Optimize performance for real-time, context-aware AI interactions within Office documents

3.

Write and Maintain Robust, Scalable Code

• Deliver clean, maintainable, and testable TypeScript/JavaScript code aligned with modern standards


• Build for reliability, performance, and security within enterprise-grade environments


• Continuously improve code quality through refactoring, testing, and automation

4.

Collaborate and Communicate

• Partner with product managers, designers, and AI engineers to define and deliver impactful plugin features


• Participate in technical discussions and contribute to architectural decisions for the plugin ecosystem


• Provide clear documentation, technical insights, and code reviews to ensure consistent engineering standards

5.

Drive Innovation and Technical Excellence

• Stay current with advancements in Microsoft 365 development, AI APIs, and JavaScript frameworks


• Champion best practices in testing, CI/CD, and deployment for Office Add-ins


• Experiment with emerging AI/ML tools and evaluate their potential for enhancing user experience

Key Measures of Success

To ensure your application has the best opportunity of success, your CV could cover the below measures of success with quantifiable results (e.g. percentages, growth, reductions, impact)

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  Plugin Performance: Delivered high-performing, low-latency Microsoft 365 add-ins (Word, Excel, Outlook) that run seamlessly across desktop and web environments.

  
  


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  AI Integration Impact: Successfully integrated AI features (e.g. Copilot, OpenAI, or Azure Cognitive Services) that improved user workflows or automation outcomes.

  
  


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  Code Quality & Maintainability: Produced clean, well-documented, and testable JavaScript/TypeScript code that meets scalability and security standards.

  
  


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  Collaboration & Delivery: Partnered effectively with product, design, and backend teams to deliver major feature releases on time and to spec.

  
  


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  User Experience Outcomes: Enhanced the intuitiveness and responsiveness of plugin UIs, driving measurable improvements in user adoption or engagement.

  
  

Person Specification

The ideal candidate would have:

• Strong proficiency in JavaScript and TypeScript (5+ years of experience)


• Hands-on experience developing Microsoft Office Add-ins or integrations using Office.js and Microsoft Graph API


• Solid understanding of frontend frameworks such as React or Vue.js


• Experience with RESTful APIs, OAuth2, and secure authentication in enterprise environments


• Proven ability to troubleshoot plugin performance and compatibility issues across Office and web contexts

The desirable candidate would have:

• Familiarity with Azure, OpenAI, or Cognitive Services for AI integration


• Experience with AI-driven applications or building data-driven user interfaces


• Background in B2B SaaS or document automation platforms


• Exposure to testing frameworks (e.g., Jest, Playwright) and DevOps pipelines for plugin deployment


• Understanding of accessibility, UX, and UI performance optimization

In addition to the technical and professional skills, there are certain core attributes we value across all roles:

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  Adaptability in dynamically evolving settings

  
  


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  A proactive, solution-focused mindset with ownership

  
  


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  A collaborative spirit, supporting and mentoring others

  
  

If you’re excited about this role but your experience doesn’t align perfectly with every qualification, we encourage you to apply anyway — you might be just the candidate we’re looking for.

Our Hiring Process

• 
  

  CV Review: Our People team reviews all applications carefully.

  
  


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  Screening Call (15m): A quick virtual chat with our People team to learn more about you and answer any initial questions.

  
  


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  Stage 1 – Assessment Interview (30–45m): A virtual assessment interview with the Hiring Manager focused on your experience and approach.

  
  

We aim to make an offer to the successful candidate within a month of application, but this will vary by role and seniority.

Why Join Us

At Avvoka, you’ll join a considerate, innovative, and inclusive team where every voice matters.

You’ll be instrumental in shaping our expansion into financial services - helping major institutions modernise how they handle legal and commercial documentation - while advancing your own career in enterprise SaaS sales.

Benefits

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  Remote-first working policy – employees are empowered to work from home and come into the office based on role and business requirements

  
  


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  Home office IT allowance (eligibility criteria apply)

  
  


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  Annual learning and development budget (eligibility criteria apply)

  
  


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  Clear pathways for professional development and career growth

  
  


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  Flexible dress code (role-based requirements apply)

  
  


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  Right to request flexible working arrangements

  
  

Why Join Us?

At Avvoka, you'll join a considerate, innovative & inclusive team every voice matters, and you'll be empowered to make a real impact.

With ample opportunities for professional development, career progression, and a range of employee benefits, Avvoka is the place to grow your career while making a difference in the legal world.

Equal Opportunities

We are an equal opportunity employer that celebrates diversity, committing to building an inclusive team that represents a variety of backgrounds.

We welcome applications from individuals of all backgrounds, identities, and experiences, including those from underrepresented groups.

We’re also happy to ...

Required Skill Profession

Computer Occupations