Senior Outbound SDR
This is Timefold -We’re building the future of intelligent planning—join us on the journey.
We are an AI planning optimization platform built on powerful, field-proven open-source solver technology. Simply put: we enable software builders to tackle some of the world's most complex, high-impact operational planning problems. From optimizing vehicle routing and employee scheduling to streamlining maintenance planning and field service logistics, our tech delivers massive economic value where it matters most.
We are on a relentless mission to free the world from wasteful scheduling! Founded in 2023, we represent the exciting next chapter of OptaPlanner—the legendary, field-proven open-source project that laid the foundation for everything we build today.
Today, we are a technically sharp, deeply passionate team of over 40 people. While our headquarters are nestled in the iconic Wintercircus building in Ghent, Belgium, we operate as a remote-first team with vibrant hubs across Belgium, the Czech Republic, Brazil and the US.
We're hiring a Senior Outbound SDR — and the job description looks nothing like it did three years ago.
About the role
AI didn't kill the SDR role. It killed the average one. The ones who survive — and win — are the ones who figured out how to use AI as a force multiplier rather than a shortcut.
We're Timefold — a Series A scheduling optimisation company used by engineering teams at Apple, Microsoft, Boeing, AT&T, and others. Most of them found us through open source. None of them have ever been called. That's the opportunity.
What the role looks like in 2026
Orchestra
You're not sending 200 generic emails a day. You're orchestrating.
Use AI to read intent signals before anyone else does — job postings, G2 activity, funding rounds, GitHub behaviour
Score and prioritise accounts automatically with tools like Clay, Amplemarket, and predictive scoring platforms — and know when to override the model
Draft outreach with Claude and Lavender that's actually relevant, then add the human layer that makes it land
Build AI-assisted sequences that trigger on buying signals, not calendars
Prompt-engineer your way to personalization at scale — without sounding like a robot wrote it
Think, build, evaluate and go for it
There is no sequence library. No established outbound motion. No playbook to inherit.
You design the outbound infrastructure from zero — tooling, sequencing logic, signal workflows, and the feedback loops that make it smarter over time
You define what great SDR work looks like at Timefold — and the person who does it well has a direct line to an AE role
Convert
Thousands of developers at enterprise organisations already use Timefold. None of them have ever talked to sales.
Turn open-source presence into commercial conversations — this is one of the most valuable motions in our GTM and you own it
Prospect into both the technical evaluator (developers, architects, engineering leads) and the executive sponsor (CIO, VP Engineering) — and know which message lands with which person
You're probably a fit if
Start-up energy doesn't scare you — it motivates you.
You've used AI outreach tools hands-on and have strong opinions about what actually works
You think in workflows, not tasks — you automate the repetitive so you can focus on the creative
You've prospected into technical buyers and know that developers delete lazy sequences on sight
You measure yourself on pipeline generated, not activity logged
A blank page + the right AI stack sounds like an opportunity, not a problem
You have 3+ years SDR/BDR in B2B tech. AI tooling experience non-negotiable.
What You'll Learn
Joining Timefold provides a unique opportunity for continuous learning and growth. In this role you will learn:
How to build an outbound motion from zero inside a technical product company — the kind of experience most SDRs never get because they inherit someone else's playbook
How enterprise developers and engineering leaders actually buy software — and why that changes everything about how you sell
How to use AI as a genuine commercial advantage, not just a tool to send more emails
What it takes to convert open-source community traction into enterprise pipeline — a motion that is becoming one of the most valuable in B2B GTM
What do we offer
Culture & Environment
At Timefold, we offer more than just a paycheck; we offer a culture where you can thrive. We promise an open and authentic workplace where you will be trusted to act, trusted to ask, and supported as you seek to grow. In return, we look for people who are ready to own and deliver impactful results.
Standard Perks
A Full Time position in a fast growing start up environment
A competitive salary package complemented by a range of local benefits
How we work & connect
Flexibility : our focus is on your talents, not your location. Choose the working arrangement that suits you best, whether it is remote, hybrid or on-site
Our dedication to creating an inclusive environment, where diversity is celebrated and everyone is treated with fairness and respect <3
Regular team building activities and gatherings to enhance (international) team spirit and cooperation (this requires a willingness to travel once or twice a year)
We are an AI planning optimization platform built on powerful, field-proven open-source solver technology. Simply put: we enable software builders to tackle some of the world's most complex, high-impact operational planning problems. From optimizing vehicle routing and employee scheduling to streamlining maintenance planning and field service logistics, our tech delivers massive economic value where it matters most.
We are on a relentless mission to free the world from wasteful scheduling! Founded in 2023, we represent the exciting next chapter of OptaPlanner—the legendary, field-proven open-source project that laid the foundation for everything we build today.
Today, we are a technically sharp, deeply passionate team of over 40 people. While our headquarters are nestled in the iconic Wintercircus building in Ghent, Belgium, we operate as a remote-first team with vibrant hubs across Belgium, the Czech Republic, Brazil and the US.
We're hiring a Senior Outbound SDR — and the job description looks nothing like it did three years ago.
About the role
AI didn't kill the SDR role. It killed the average one. The ones who survive — and win — are the ones who figured out how to use AI as a force multiplier rather than a shortcut.
We're Timefold — a Series A scheduling optimisation company used by engineering teams at Apple, Microsoft, Boeing, AT&T, and others. Most of them found us through open source. None of them have ever been called. That's the opportunity.
What the role looks like in 2026
Orchestra
You're not sending 200 generic emails a day. You're orchestrating.
Use AI to read intent signals before anyone else does — job postings, G2 activity, funding rounds, GitHub behaviour
Score and prioritise accounts automatically with tools like Clay, Amplemarket, and predictive scoring platforms — and know when to override the model
Draft outreach with Claude and Lavender that's actually relevant, then add the human layer that makes it land
Build AI-assisted sequences that trigger on buying signals, not calendars
Prompt-engineer your way to personalization at scale — without sounding like a robot wrote it
Think, build, evaluate and go for it
There is no sequence library. No established outbound motion. No playbook to inherit.
You design the outbound infrastructure from zero — tooling, sequencing logic, signal workflows, and the feedback loops that make it smarter over time
You define what great SDR work looks like at Timefold — and the person who does it well has a direct line to an AE role
Convert
Thousands of developers at enterprise organisations already use Timefold. None of them have ever talked to sales.
Turn open-source presence into commercial conversations — this is one of the most valuable motions in our GTM and you own it
Prospect into both the technical evaluator (developers, architects, engineering leads) and the executive sponsor (CIO, VP Engineering) — and know which message lands with which person
You're probably a fit if
Start-up energy doesn't scare you — it motivates you.
You've used AI outreach tools hands-on and have strong opinions about what actually works
You think in workflows, not tasks — you automate the repetitive so you can focus on the creative
You've prospected into technical buyers and know that developers delete lazy sequences on sight
You measure yourself on pipeline generated, not activity logged
A blank page + the right AI stack sounds like an opportunity, not a problem
You have 3+ years SDR/BDR in B2B tech. AI tooling experience non-negotiable.
What You'll Learn
Joining Timefold provides a unique opportunity for continuous learning and growth. In this role you will learn:
How to build an outbound motion from zero inside a technical product company — the kind of experience most SDRs never get because they inherit someone else's playbook
How enterprise developers and engineering leaders actually buy software — and why that changes everything about how you sell
How to use AI as a genuine commercial advantage, not just a tool to send more emails
What it takes to convert open-source community traction into enterprise pipeline — a motion that is becoming one of the most valuable in B2B GTM
What do we offer
Culture & Environment
At Timefold, we offer more than just a paycheck; we offer a culture where you can thrive. We promise an open and authentic workplace where you will be trusted to act, trusted to ask, and supported as you seek to grow. In return, we look for people who are ready to own and deliver impactful results.
Standard Perks
A Full Time position in a fast growing start up environment
A competitive salary package complemented by a range of local benefits
How we work & connect
Flexibility : our focus is on your talents, not your location. Choose the working arrangement that suits you best, whether it is remote, hybrid or on-site
Our dedication to creating an inclusive environment, where diversity is celebrated and everyone is treated with fairness and respect <3
Regular team building activities and gatherings to enhance (international) team spirit and cooperation (this requires a willingness to travel once or twice a year)