JavaScript Jobs in Belfast.
All active JavaScript roles based in Belfast.
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Tech Lead, Web Core Product & Chrome Extension - Belfast, United Kingdom
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The mission of Speechify is to make sure that reading is never a barrier to learning.
Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.
Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.
This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.
We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount.
Our interview process involves several technical interviews and we aim to complete them within 1 week.
What You’ll Do
- Actively ship production code to the web products
- Work closely with your dedicated product team
- Participate in product discussions to shape the product roadmap
- Have the opportunity to work on new and exciting features that will impact millions of lives
An Ideal Candidate Should Have
- Experience. You've built and ship products that have scaled to thousands or millions of users
- Customer obsession. You are passionate about the field and have the desire to build high quality product that serves customer needs
- Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
- Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
- Collaboration. You know how to inspire, play, and negotiate with opinionated designers, marketers, and PMs
- Tech Stack: Vanilla JS, ReactJS, Redux, Firebase, Typescript
What We Offer
- A fast-growing environment where you can help shape the culture
- An entrepreneurial crew that supports risk, intuition, and hustle
- A hands-off approach so you can focus and do your best work
- The opportunity to make an impact in a transformative industry
- A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
Think you’re a good fit for this job?
Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.
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Speechify is committed to a diverse and inclusive workplace.
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.
Ready to apply?
Apply to Speechify
Implementation Engineer
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Join TRG Screen: Building World-Class Teams. One Expert at a Time.
Are you ready to be part of a dynamic team at the forefront of subscription spend management innovation?
At TRG Screen, we're not just redefining how organizations manage their subscription expenses – we're shaping the future of the industry. With cutting-edge solutions and a commitment to excellence, we empower businesses around the globe to optimize their subscription investments and drive sustainable growth.
Join us in our mission to revolutionize subscription management and make a meaningful impact on the way businesses access and utilize critical information. At TRG Screen, your talent and ambition will find a home, where opportunities for growth and advancement abound.
About TRG Screen
TRG Screen is the leading provider of market data and subscription management technology and automation solutions, tailored to the unique needs of financial institutions and legal firms. Our integrated suite of solutions includes market data and subscription spend management, usage management, compliance reporting, and comprehensive managed services, which hundreds of clients worldwide use to remove cumbersome and inaccurate manual processes and gain control over market data and subscription costs at scale. For more than 25 years, TRG Screen has enabled businesses who rely on market data to monitor and strategically manage spending and usage of data and information services, including market data, research, software licenses, consulting and other necessary corporate expenses. TRG Screen solutions give decisionmakers full transparency into subscription spend and usage, enabling them to proactively manage subscription costs at scale, conduct more informed vendor negotiations, improve governance, and avoid unnecessary spending on these mission-critical business services. TRG Screen is headquartered in New York City, with offices in Europe and Asia, as well as a 24x7 client support center in Bangalore, India.
TRG Screen is a portfolio company of Vista Equity Partners, one of the world’s largest and most respected private equity firms.
We’re looking for an Implementation Engineer to join our growing team and lead complex post-sales integrations for our Submarine platform. In this role, you’ll work directly with clients to design, build, and troubleshoot custom implementations - ensuring seamless integration of our solutions within their market data environments and maximising the value they gain from our technology.
- Build and implement client-specific solutions using JavaScript to handle data transformation and routing requirements.
- Troubleshoot complex integration challenges outside standard interfaces, collaborating closely with clients to understand their workflows.
- Use API access to request, transform, and manipulate data objects according to client specifications.
- Lead post-sales technical implementations, ensuring seamless deployment of Submarine into client environments with minimal disruption.
- Write JavaScript code for data transformations, conditional logic, and object manipulation using Submarine’s editor.
- Collaborate with business analysts to translate client requirements into technical solutions.
- Work closely with engineering teams to deepen understanding of market data systems.
- Produce clear technical documentation for custom integrations and client-specific configurations.
Essential:
• 3–5 years in a technical role (Technical Support, Systems Engineering, Implementation, or similar)
• 2+ years of hands-on JavaScript development for scripting, data manipulation, and business logic
• Strong programming fundamentals with ability to write clean, functional code
• Excellent troubleshooting and problem-solving skills for complex integration challenges
• Comfortable working directly with enterprise clients to gather requirements and explain technical solutions
Preferred:
• 1–3 years in financial services or market data environments (we'll consider exceptional candidates without this)
• Experience with market data systems (Market EDM, Golden Source, Cadence/Cadis, or CRD from State Street)
• Python scripting experience
Join TRG Screen and unlock your potential in an environment where innovation thrives, opportunities abound, and your contributions make a difference. We are an equal opportunities employer. We recognise and value the power of diversity in our workplace and are committed to being an employer of choice for everyone. We welcome and encourage applicants from all backgrounds. All applications for employment are considered strictly on the basis of merit.
At TRG Screen, we understand that diverse and inclusive teams are not just beneficial, they are essential to our success. We recognize that embracing diverse perspectives, backgrounds, and experiences fosters innovation, enhances problem-solving capabilities, and drives better business outcomes. By cultivating a culture of inclusion where every voice is heard and valued, we empower our world class teams to thrive, excel, and drive positive change.
We are proud of our diverse workforce and are dedicated to creating a safe and welcoming environment for all employees. People from various ethnicities, ages, genders, and abilities are encouraged to apply.
Ready to apply?
Apply to TRG Screen