Build the Future of AI for Public Services

Join our mission to transform emergency services, healthcare, and critical operations through intelligent automation. Work on technology that saves lives and improves communities.

Why CallGuru

Make a Real Difference

At CallGuru, your work directly impacts emergency response times, patient care quality, and accessibility of critical services. We're not building another SaaS app—we're transforming how public sector organizations serve their communities.

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Mission-Driven Work

Every line of code, every feature, every improvement helps emergency services respond faster, helps patients get care in their language, and helps organizations do more with less.

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Cutting-Edge Technology

Work with the latest AI models, real-time voice processing, WebSocket architecture, and cloud infrastructure. We're at the forefront of applied AI technology.

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Growth & Learning

Rapid growth means rapid learning. You'll gain experience across the full stack, from AI integration to production systems serving critical operations 24/7.

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Collaborative Culture

Small, focused team where everyone's contribution matters. Work directly with founders, influence product direction, and see the immediate impact of your work.

Perks & Benefits

How We Support Our Team

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Competitive Salary

Market-rate compensation with equity options for early team members

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Flexible Working

Hybrid model with office in London Docklands and remote work options

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Learning Budget

Annual budget for courses, conferences, and professional development

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Health Coverage

Comprehensive health insurance for you and your family

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Equipment

Latest MacBook Pro or PC, external monitors, and ergonomic setup

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Time Off

25 days annual leave plus UK bank holidays

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Career Growth

Clear progression paths and opportunities to lead new initiatives

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Team Events

Regular team lunches, social events, and quarterly offsites

Open Positions

Join Our Team

Senior Full-Stack Engineer
📍 London / Hybrid 💼 Full-time ⏰ Posted 2 weeks ago
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We're looking for an experienced full-stack engineer to help build and scale our AI-powered translation platform. You'll work on real-time WebSocket communication, AI integration, and production systems serving critical operations.

What you'll do:

  • Build and maintain real-time translation features using OpenAI's Realtime API
  • Develop WebSocket infrastructure for low-latency voice processing
  • Create intuitive dashboards for enterprise customers
  • Optimize performance and reliability for 24/7 operations
  • Collaborate with product and customers to shape features

What we're looking for:

  • 5+ years of full-stack development experience
  • Strong TypeScript/JavaScript skills (Node.js, Deno, React)
  • Experience with real-time systems (WebSockets, WebRTC)
  • PostgreSQL and database design expertise
  • Understanding of AI/ML integration (experience with OpenAI APIs a plus)
  • Passion for building reliable, mission-critical software
AI/ML Engineer
📍 London / Hybrid 💼 Full-time ⏰ Posted 1 week ago
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Join our AI team to develop next-generation features for CallSim training simulator and enhance our translation quality. You'll work on prompt engineering, model fine-tuning, and building intelligent automation for public sector applications.

What you'll do:

  • Design and optimize AI agents for realistic call simulation scenarios
  • Develop quality assurance algorithms for translation analysis
  • Fine-tune models for specialized domains (medical, legal, emergency services)
  • Build evaluation frameworks and metrics for AI performance
  • Research and implement latest AI advancements

What we're looking for:

  • 3+ years of AI/ML engineering experience
  • Strong Python skills with ML frameworks (PyTorch, TensorFlow, or similar)
  • Experience with LLM integration and prompt engineering
  • Understanding of NLP and speech processing
  • Familiarity with OpenAI API, Anthropic Claude, or similar platforms
  • Research mindset with practical implementation skills
Product Manager
📍 London / Hybrid 💼 Full-time ⏰ Posted 3 days ago
Apply Now

Lead product strategy for CallGuru's AI solutions serving emergency services, healthcare, and enterprise customers. You'll work directly with public sector organizations to understand their needs and shape our product roadmap.

What you'll do:

  • Define product strategy and roadmap for translation, training, and consulting offerings
  • Conduct user research with emergency services, hospitals, and enterprises
  • Prioritize features based on customer impact and business value
  • Work closely with engineering to deliver high-quality solutions
  • Analyze usage metrics and drive product improvements

What we're looking for:

  • 4+ years of product management experience in B2B SaaS
  • Experience with public sector or healthcare customers highly valued
  • Technical background with ability to understand AI capabilities
  • Strong analytical and communication skills
  • Track record of shipping successful products
  • Passion for using technology to improve public services

Don't See the Right Role?

We're always interested in hearing from talented people who share our mission. Whether you're a designer, sales professional, operations expert, or something else entirely, we'd love to hear from you.

Send Us Your CV
Our Process

How We Hire

1

Apply

Send us your CV and tell us why you're interested in CallGuru

2

Initial Call

30-minute chat with our team to discuss your background and interests

3

Technical/Case

Role-specific assessment or case study (paid for engineering roles)

4

Team Meet

Meet the team, see the office, and get your questions answered

Our commitment: We aim to complete the entire process within 2 weeks and provide feedback at every stage. We respect your time and move quickly.

Ready to Make an Impact?

Join our mission to transform public services through AI. Send us your CV or reach out with any questions about working at CallGuru.