At Upvest, we are on a mission to make investing as easy as spending money . Upvest empowers businesses to offer a wide range of investment products and the best experience in the field of capital market investment and retirement planning. Upvest’s Investment API is easy to integrate so that fintechs and financial institutions can save resources and fully focus on their core business.

We are proud to partner with Europe’s leading Fintechs and financial institutions such as DKB, Revolut, N26 and Raisin. Founded in 2017 by Martin Kassing, Upvest now brings together over 270 talented professionals from more than 70 nationalities. Upvest is backed by €280M in total funding from world‑class investors, including BlackRock, Tencent, Sapphire Ventures, and Bessemer Venture Partners, Earlybird, Notion Capital, and Motive. Our latest €105M funding round in March 2026 – led by Sapphire and Tencent – serves as a massive catalyst for our growth, allowing us to offer premier investment experience.

About the role:

Support clients throughout the integration process and post‑launch.
Develop learning materials and tools to enhance the client experience when integrating with the API.
Contribute to the rapidly expanding domain of Integration Success engineering.
Personalize the experience for software engineers.
Provide clients with timely updates on incident resolution and comprehensive reports once incidents are resolved.

What you’ll do:

Deal with clients requests and technical incidents.
Conduct workshops with clients to help them integrate smoothly.
Monitor clients API and Webhooks consumption to proactively address any oddities.
Check the clients implementation quality by conducting joint testing sessions with clients.
Work with other Client Impact teams to deliver an exceptional experience for our clients.
Contribute to the team quarterly priorities to ensure scalability and proactiveness of the Integration Success function.

What you bring:

Experience: You have a solid background in software maintenance, specifically in roles that involved either consuming or providing APIs. This includes understanding the lifecycle of API‑driven systems, from initial integration to ongoing support and evolution. You're comfortable with the intricacies of data exchange between different software components and can troubleshoot issues that arise in such environments.
Passion for communication, support, and improvement: You are genuinely enthusiastic about fostering clear and effective communication, not just within your team but also with external stakeholders. You thrive on providing excellent support, actively seeking to resolve issues and empower clients. Beyond just fixing problems, you possess a continuous improvement mindset, always looking for ways to optimize processes, enhance documentation, and elevate the overall client experience.
Belief in engineering rigor for documentation and examples: You firmly believe that examples, tutorials, and documentation are just as critical to a product's success as the code itself. You approach their creation with the same meticulous attention to detail, clarity, and accuracy that you apply to writing software. You understand that well‑crafted documentation significantly reduces support burdens and accelerates clients implementation and further growth.
Ability to see beyond technical detail to the broader product experience: While you possess strong technical acumen, you're not solely focused on the nitty‑gritty of code. You have a keen ability to step back and consider how technical components contribute to the overall client journey and product value. You can empathize with clients, understand their needs and pain points, and can translate technical concepts into a client‑centric perspective.
Focus on what matters, and plan and prioritize accordingly: In a fast‑paced environment, you demonstrate excellent judgment in identifying the most critical tasks and initiatives. You're adept at setting priorities, managing your time effectively, and aligning your efforts with the strategic goals of the team and company. You can navigate competing demands and ensure that the most impactful work is consistently addressed.
Ownership of tasks and their outcomes: You are a highly responsible individual who takes full ownership of your assignments, from initiation to successful completion. You proactively anticipate challenges, seek solutions, and are accountable for the quality and timeliness of your deliverables. You are not afraid to take initiative and see tasks through to their ultimate resolution, ensuring positive outcomes.

It’s great if you have:

Prior experience in any positions such as:
- Developer eXperience
- Technical Support/Integration Success
- Solutions Engineering
- Technical writing
Experience working in the FinTech domain.

How we Upvest in you:

Best-in-class AI tools: Every Upvenger has €20,000 per year to spend on the best AI tools available — so you're always working with the most powerful models and tooling on the market.
Impact‑driven work: We’re building the infrastructure that will power the future of investing in Europe. It’s complex, ambitious, and meaningful. You’ll work with modern technologies and create something entirely new. No legacy systems, no limits.
Wellbeing: Recharge with 30 days of annual leave and maintain a healthy lifestyle with sports benefits. Access confidential professional coaching and enjoy the flexibility to work remotely abroad for up to 183 days a year. Recharge with UpRest, a one‑month fully paid sabbatical after every 4 years of working at Upvest.
Development: Growth is in our DNA. Each Upvenger has access to a personal development budget and the freedom to decide how to use it.
Flexible work environment: Work from any of our hubs in Berlin, London or Tallinn hybrid or remotely across Europe, depending on the role. We give you the choice and budget to work where you’re most comfortable and productive, either at home or in the office. You choose.
Compensation and equity: We believe that all Upvengers contribute to our success and deserve a competitive, above‑market salary and a participation in our employee equity program.
Team celebrations: Participate in company‑wide events, such as UpFest, dinners, offsites and our Holiday party, to connect with colleagues and celebrate our achievements.
Inclusion: We’re committed to a culture where everyone belongs and thrives. Our Employee Resources Groups foster inclusion and connection, like Upfem for our female Upvengers, or UpVergent supporting neurodivergent Upvengers and allies.

Our Values:

Make it easy for others. We simplify the complex and act with the best intentions.
Own the outcome. We are proactive, fast and confident to get the job done, valuing progress over perfection.
Rise to the challenge. We aim high and push the boundaries. We stay curious, learn and celebrate our wins together.
Tell the story. We start with the Why to align on purpose. We are transparent and share knowledge to empower and inspire others.

Upvest is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

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