JavaScript Developer with Excel Add-in experience

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Opinov8 is a leading provider of digital and engineering solutions with an Opinion in Innovation, specializing in custom software development, cloud, and data services. Our team of passionate experts helps businesses across various industries achieve their digital goals and stay ahead of the curve by delivering solutions that combine technical expertise with a human-centered approach. 
With headquarters in London and development centers in Ukraine, Egypt, Colombia, Poland, and the USA, we bring together diverse talents and perspectives. 
Ready to make an impact? Join Opinov8, and let's innovate together. 


Our client delivers industry-leading research and analysis on global energy commodities and macro markets. Founded in 2012, it is now retained by some 500 companies to provide indispensable insights that help guide trading and investment decisions, analysis that dives deep into fundamentals and reacts to market events. Extensive databases to flesh out clients’ forecasts and drive models.

Our technology team is delivering multiple projects, including a new data platform, a specialized oil tracking application, and a new infrastructure and platform approach. We are also continuously improving existing systems to provide a modern, user-friendly experience.


As an Excel add-in Developer, you will build an Excel add-in that interacts with objects in Excel using the Office JavaScript API.

- Develop an Excel add-in that utilizes the Office JavaScript API to interact with Excel objects - build the Add-In that will wrap the client's Data API;
- Collaborate with the technology team on various projects to integrate the add-in with existing and new systems.
- Ensure the add-in provides a seamless and modern user experience.
- Continuously improve and update the add-in based on user feedback and technological advancements.
- Interact with Excel objects, read and write Excel data;
- Add custom functions;
- Be part of an agile, interdisciplinary team;
- Deliver technical expertise with high quality.


- Professional experience in JavaScript, HTML, and CSS.
- Experience building an Excel add-in that interacts with objects in Excel by using the Office JavaScript API.
- Familiarity with the Office JavaScript APIs.
- Upper Intermediate English Level.

*Contract Type: 6-12 months project.

Digital-First Approach: Great talent knows no borders! You can work from wherever you are. We hire and collaborate with professionals worldwide.  
- Remote Work Model: Balance your professional and personal life with our flexible working conditions. We offer an, empowering you to be productive and deliver your best from anywhere.  
Flexible Time-Off Policy: Enjoy twenty vacation days, long and short-term sick leave, and five extra personal days to take care of important personal matters, allowing you to manage your time as you see fit. 
- Exciting Projects: Dive into impactful projects across various industries that challenge and spark your creativity. Work on innovative solutions that push boundaries, giving you the chance to make a difference and drive change. 
- Boost Your Expertise: Elevate your career with unmatched experiences that expand your knowledge and master skills. We foster continuous learning and development opportunities that allow you to grow and reach new heights. 
Join the Best Team Ever: Collaborate with our diverse and сross-cultural team of passionate technologists and creative thinkers who inspire and support. Together, we develop services that make a real impact on the world.


We strive to make a smooth and transparent hiring process to find the perfect match for both sides. Steps may differ depending on the position — here's what to expect: 

Initial Interview: If your background fits the role's criteria, we'll invite you for an interview with a Talent Acquisition Specialist to get to know you better. 
Technical Interview: Depending on the role, you may be asked to complete a technical assessment/test task to showcase your expertise.  
Client’s Interview: Meet with client representatives to discuss the role specifics and gain insights into the project's scope and expectations.
Final Decision: After completing all interviews and assessments, we'll reach a final decision and get back to you with the result. 


We’d love to hear from you! Apply for this position and become part of our team! Let’s make great things together!
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