Web Developer jobs in United Kingdom

Ada is an AI customer service company whose mission is to make customer service extraordinary for everyone. We're driven to raise a new standard of quality customer service at scale, enabling enterprise companies to deliver experiences that people love–instant, proactive, personalized, and effortless.

Ada is an AI transformation platform and partner—combining strategic expertise with powerful AI agent management technology to accelerate businesses’ AI maturity to keep them ahead of the curve. With Ada, 83% of customer conversations—and counting—are effortlessly resolved through automation, giving teams more time back, companies more resources to focus on growth, and customers more life to focus on what matters most to them.

Established in 2016, Ada is a Canadian company that has powered over 5.5 billion interactions for leading brands like Square, YETI, Canva, and Monday.com , saving millions of hours of human effort. Backed with over $250M in funding from tier-one investors including Accel, Bessemer, FirstMark, Spark, and Version One Ventures, Ada is a pioneer in the management and application of AI in customer service.

At Ada, we see growth as a reflection of each individual owner’s personal growth. That’s why our values are rooted in driving progress and continuous improvement. If you’re ambitious and eager to grow, Ada could be the place for you.

As an Ada engineer, you’ll have the autonomy to make a huge impact and the opportunity to work alongside talented peers who challenge and inspire you. We move fast, take ownership, and always strive to improve, both as individuals and as a team. You will partner with product managers, designers, and machine learning scientists and will be responsible for both building scalable systems and working directly with LLMs. If you’re excited to solve complex problems and shape the future of AI-driven customer support, we’d love to hear from you.

Our team values a high ownership mindset. As a Senior Engineer, your job is not just to write the code, but to give valuable input on the features we develop and the technical foundations of our systems. You must empathize with our direct customers, and end users who will interact with the AI agents we power, to think about the best ways to solve the problems on our roadmap.

• Experience with databases such as MongoDB, PostgreSQL, ElasticSearch and in-memory stores such as Redis
• Experience working on AI projects with 3rd party LLM providers, such as OpenAI, Azure, Anthropic
• Experience designing, building, and maintaining APIs for external developers
• Ability to articulate technical decisions clearly, explaining not just the “what” but the “why” behind architectural choices, trade-offs, and implementation details
• Proven experience mentoring engineers through code reviews, design discussions, and knowledge-sharing

• Execute on our ambitious product roadmap by creating and implementing technical designs
• Champion a high-quality bar on our work by reviewing the team’s code, providing insightful feedback, and fostering a collaborative community within the engineering organization
• Ensure that the team is providing the best AI Agent platform experience by staying close to the customer feedback, internal team pain points and close collaboration with our product and design partners

The expected salary range for this position is $129,264 - $171,478. Actual pay will be determined based on several factors such as past experience and qualifications, geographic location, and other job-related factors permitted by law.

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At Ada, you’ll not only build extraordinary products but also thrive in an environment designed for your success. We prioritize your well-being, growth, and work-life balance. Here’s what we offer:

• Unlimited Vacation: Recharge when you need to.
• Comprehensive Benefits: Extended health coverage, dental, vision, travel, and life insurance.
• Wellness Account: Empowering you to invest in your overall well-being and lifestyle.
• Employee & Family Assistance Plan: Resources to support you and your loved ones.
• Flexible Work Schedule: Balance your work and personal life.
• Remote-First, In-Person Friendly: Options to work from home or at our local hub.
• Learning & Development Budget: Invest in your long-term growth goals and skills.
• Work from Home Budget: Equipping you with the tools and support for a seamless remote work experience.
• Access to Cutting-Edge AI Tools: Work with the best AI tech stack in the industry.
• Hands-On with LLMs: Enhance your expertise in leveraging large language models.
• A Thriving Industry: Join the forefront of innovation in AI, shaping the future of technology.
  
  

The above Benefits and Perks only apply to full-time, permanent employees.

Thank you for your interest in joining us at Ada. Due to the high volume of applications, we will only contact candidates whose qualifications match closely to the requirements of the position. We appreciate the time you have invested in learning more about us.

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