Our contact centre platform is what keeps merchant support running across all of SumUp's global markets, handling thousands of interactions every day across the globe. As our Senior Platform Engineer, you'll own the technical side of this space entirely, reviewing how it's built today, driving the implementation of new technologies, and leading the move towards AI-powered support. If you want real technical ownership, a broad scope, and work that directly shapes the experience merchants have when they need help most, this is the role.
What you'll do:- Review our current contact centre setup, identify what's working and what can be improved, and shape a clear roadmap for the voice channel
- Design and improve automation and AI-powered self-service solutions, including conversational AI agents and intelligent call routing
- Administer and evolve our Five9 environment, maintaining integrations with internal systems via APIs and Salesforce
- Lead the implementation of our AI voice solution, including the rollout of an Agent Copilot tool to support live agents handling voice calls in real time
- Work closely with operations, product, and engineering teams to align on tooling decisions and deliver solutions that reduce friction for merchants and agents alike
- Support and mentor junior team members, helping build contact centre and AI capability across the team
- Solid experience in contact centre platform development and administration, with hands-on knowledge of Five9, Genesys, or similar platforms, and strong API integration skills
- Comfortable working with JavaScript and Salesforce in a distributed systems environment
- Experience building with AI tools — whether LLM APIs, conversational AI platforms, or automation frameworks — and an understanding of how to apply them practically in a support context
- Ability to review a complex technical environment, identify what needs to change, and communicate that clearly to both technical and non-technical stakeholders
- Track record of working across multiple markets or in a global support environment, navigating different languages, regulations, and merchant needs
- Strong English communication skills, written and verbal
- 🌎 Opportunity to work with SumUppers globally on large-scale fintech products used by millions of businesses worldwide, from our Berlin office. This involves an office-first setup
- 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced
- 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp's future success
- 📚 A dedicated annual L&D budget of €2000 for your individual development, which can be used to attend conferences and/or advance your career through further education
- 💶 A corporate pension scheme where we match up to 20% of your contributions
- 🏖️ Generous time off: enjoy 28 days of paid leave plus public holidays and special leave days
- 🏋️ Numerous other benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidised office lunches
- 🌴 Break4me: 1-month sabbatical after 3 years of service
- 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team
About SumUp
Be empowered to do more that matters.
At SumUp, we're on a mission to empower small businesses across the globe by providing simple and affordable tools that allow them to thrive. Today, over 4 million businesses in 37 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships.
Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. Our core values lay the foundation for who we are and what we stand for, shaping our work culture and driving our success. We foster inclusivity and a continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify.
SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Discover more about our culture and opportunities on our careers website, and follow our journey on LinkedIn, Instagram, and TikTok
Job Application Tip
We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumU
Job Application Tip
We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.
Skills Required
- Solid experience in contact centre platform development and administration
- Hands-on knowledge of Five9, Genesys, or similar platforms
- Strong API integration skills
- Experience working with JavaScript and Salesforce in a distributed systems environment
- Experience building with AI tools and automation frameworks
- Ability to communicate complex technical changes clearly
- Track record of working in a global support environment
- Strong English communication skills
SumUp Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SumUp and has not been reviewed or approved by SumUp.
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Leave & Time Off Breadth — Paid time off is positioned as a standout, including 22 vacation days that increase with tenure, public holidays, a quarterly Wellness Day, special leave, and a fully paid one‑month sabbatical after three years. This combination makes time-off benefits feel notably robust in the overall rewards package.
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Healthcare Strength — Health coverage is described as comprehensive, with medical plan options (including carriers such as Cigna and Kaiser) plus dental and vision. Company-paid life insurance and disability coverage are also part of the protection package in the U.S. materials.
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Retirement Support — Retirement benefits include a published 401(k) match formula that provides an employer match up to a stated cap. The clarity of the match structure supports straightforward evaluation during offer comparisons.
SumUp Insights
What We Do
SumUp believes that every business should have access to affordable, easy-to-use financial solutions, no matter their size. That’s why more than 3 million businesses worldwide rely on SumUp to run their business. What started out as one card reader has now turned into a range of payment hardware, banking solutions, marketing, and loyalty tools, invoicing, and so much more. From sales and marketing to product and engineering, our cross-functional US team works together to ensure that small business owners can be successful doing what they love.
Why Work With Us
SumUp USA is part of the global SumUp organization that stretches across multiple continents from Berlin to Sao Paulo. Our teams are multicultural, have a collaborative mindset and bold goals. Join our mission if you want to become part of the success story and help empower over 3 million merchants using SumUp already!
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