GTM Engineer in London

Our everyday digital experiences are in the middle of a realtime revolution: chatting alongside a livestream, getting realtime financial updates, or working with colleagues in a shared online space. Consumers now expect realtime as standard, and Ably powers a large part of it. We put developers first. Our products help teams build, extend, and deliver realtime digital experiences, delivering over 700 billion messages to more than 2 billion devices every month. Teams at HubSpot, Fin, Dialpad, NASCAR, Sportsbet, and General Motors all build on Ably. Working at Ably means helping build the infrastructure that will shape the next generation of the internet.

As our Go-to-Market Engineer, you'll be the person who actually builds and owns the systems that make our commercial data and workflows trustworthy. Right now, responsibility for Ably's commercial data and workflows is split across a few people and tools, each doing good work in their own area, but nobody's holding the full picture end to end. This role sits at the intersection of Sales, CS, Marketing and Data Engineering. You might build an agent that flags an ICP account the moment its usage crosses a threshold and drafts the first outreach, or a nightly job that reconciles HubSpot and Snowflake data so nobody's arguing about whose number is right.

You will spend most of your time putting infrastructure in place: workflows, data pipelines, AI-driven enrichment and automation. The rest goes into using that infrastructure to find what's actually wrong and fix it: data quality audits, funnel and conversion analysis, and diagnosing gaps in our commercial systems wherever they show up. This isn't a dashboards-on-request role. We want someone who thinks like an owner: you see the gap before anyone else notices it, decide what's worth building, and go build it.

Day to day, you will:

• Build and own the systems, not just the outputs.
• The majority (~70%) of this role is building: automated workflows, data pipelines, lead scoring and routing logic, and AI-driven enrichment across our CRM, sales and marketing stack.
• The other ~30% is using what you've built to run data quality audits, diagnose conversion issues and analyse performance.
• Automate where possible and fix broken or manual workflows wherever you find them.
• Share HubSpot's day-to-day upkeep, including Marketing Hub, as part of the team's rotation.
• Run data quality audits.
• Validate enrichment accuracy across our vendors, spot-check that account and lead classification is actually correct.
• Own conversion and funnel tracking.
• Map where prospects drop off across our automated systems, from first touch through to deal.
• Be the connective tissue between commercial and data teams.
• Use AI to operate at a scale one person shouldn't otherwise manage.

We'd love to talk if you have:

• Experience in Marketing Ops, Sales Ops, Revenue Ops or a similar cross-functional systems role, ideally with AI-driven or automated workflows already under your belt.
• Comfort working across CRM platforms in general.
• A track record of building things independently.
• Hands-on experience with workflow automation tools (n8n, Zapier, Make or similar).
• You've built with LLMs beyond basic prompting.
• A systems-thinking mindset and genuine analytical ability.
• Comfort with ambiguity.

Bonus points if you have:

• Familiarity with the Claude stack specifically.
• Experience with lead lifecycle/funnel models (MQL, SAL, PQL, SQL) and how scoring and routing logic works in practice.

What’s it like to work at Ably?

You'll join a team of around 60 people, working directly alongside senior engineering and leadership. No layers, no bureaucracy, and real ownership from day one. We hire the best people wherever they are across the UK and Europe, trust them to own their work, and share decisions and feedback openly.

Our six values shape how we work day to day:

• Open for all. We default to sharing openly: source, decisions, and feedback, with open minds to match.
• Tech needs humanity. We build with empathy, for colleagues and developers alike.
• Even the best do better. We keep raising our own bar, driven by curiosity, not complacency.
• Bias for action. Once we know enough to act, we act, rather than waiting for certainty.
• Dependable by default. We take real ownership of what we ship and what we promise.
• Bold creativity wins. We treat big constraints as a reason to think differently, not less.

Diversity, inclusion, and belonging at Ably

We believe our differences as individuals are what make us great. Our people are at the heart of what we do, and we encourage everyone to be their most authentic self at Ably.

What you'll get:

• A remote-first and flexible work environment.
• Equity through our EMI share options programme.
• Enhanced holiday allowance: 28 days of paid annual leave.
• Enhanced parental leave.
• A home workstation budget of £500 on joining.
• A personal learning and development budget of £1000 a year.
• Private healthcare with BUPA.
• A medical cash plan covering a range of medical and dental costs.
• Mental wellbeing coaching and counselling.
• A monthly wellbeing budget.
• Life assurance and income protection.
• Access to Tech and Cycle to Work schemes.
• A weekly snack allowance.
• A fully-paid one-month sabbatical after five years with Ably.