Technical Support Engineer
Sumsub is the one verification platform to secure the whole user journey. With Sumsub’s customizable KYC, KYB, transaction monitoring and fraud prevention solutions, you can orchestrate your verification process, welcome more customers worldwide, meet compliance requirements, reduce costs and protect your business.
Sumsub has over 4000 clients across the fintech, crypto, transportation, trading and gaming industries including Duolingo, Bitpanda, Wirex, Avis, Exness, Flippa, italki, Bybit, LBANK, Gett, Kaizen Gaming, and TransferGo.
Our products are recognised by industry leaders like Gartner's Magic Quadrant, Forrester Wave™ and Frost Radar™.
Now we are looking for a L3 Technical Support Engineer to join our team!
What You Will Be Doing:
- Providing technical support, configure, and troubleshooting issues with the Sumsub platform for our B2B clients.
- Performing a technical analysis of reported problems and defining plans for resolving them.
- Interacting daily with other engineers to provide technical action plans or take ownership of cases that require escalation.
- Collaborating closely with other teams to answer clients’ technical questions, acting as a liaison between the client and internal Sumsub resources.
- Communicating with clients using chat, email, and outbound calls.
- Developing and implementing custom solutions involving simple scripting or coding.
About you:
- Fluent in English (both oral and written, upper-intermediate as a minimum).
- Experience troubleshooting web applications.
- Basic understanding of programming fundamentals (e.g., data types).
- Practical experience troubleshooting web applications that use RestAPI.
- Practical experience working with SQL-like databases.
- Simple scripting skills using the language of your choice.
- Basic HTML and CSS experience.
- Willingness to provide excellent support service.
Would be Considered a Plus:
- Familiarity with Kibana or the Elastic Stack.
- Proficiency in supporting/working with mobile or web SDK.
- Hands-on expertise with Postman or practical exposure to API troubleshooting.
- Background in technical support for web or mobile applications.
- Understanding of crypto, fintech, banking applications or services.
What We Offer:
- Competitive compensation in compliance with your professional expertise.
- Working with a product that matters. Our technology helps to protect millions of users and lots of online services worldwide.
- International project. Our team works from offices in Berlin, Limassol, London, and Miami, our customers are spread from Mexico and the USA to Hong Kong, South Korea, and Singapore.
- Remote first company – work from anywhere in the world.
- Paid vacation and sick leave.
Sounds like a great opportunity for your career development? Then go ahead and apply!
We are a global community of innovators, creators, and thinkers, and we believe that diversity fuels our innovation. Sumsub is proud to be an equal opportunity employer, committed to building a diverse and inclusive workforce. We welcome applications from people of all backgrounds, cultures, genders, experiences, abilities and perspectives. Join us in shaping the future inclusively.
- Department
- Customer Operations
- Role
- Technical Support Engineer
- Remote status
- Fully Remote
Let's shape a friendly digital future
Join the vibrant team of Sumsubers set on making the digital world friendly and inclusive for everyone!

Technical Support Engineer
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