Senior Backend Engineer

Taktile is a high-growth, post product–market fit start-up, on a fast trajectory to becoming market leader in the field of automated decisioning.

As a senior engineer, you will lead the expansion and improvement of our Data Marketplace and integration engine. Critical systems that enable customers to access, evaluate, and combine data providers at scale. These systems process millions of automated decisions every day, and your work will directly impact how banks, fintechs, and enterprises fight fraud, expand credit, and enable financial access.

You'll bring a proven track record in API aggregators, AWS, and complex backend systems, and you'll leverage modern practices to ensure reliability, scalability, and developer efficiency. This role is ideal for someone who thrives with autonomy, influences beyond their immediate team, and enjoys raising the technical bar.

• Design, build, and ship high-leverage backend components in Python on AWS - from the integration engine to aggregation/orchestration layers - raising code quality through deep reviews and keeping CI/CD fast and reliable.

• Own outcomes for the Data Marketplace: streamline provider onboarding and evaluation, introduce safe rollout/versioning strategies, and measurably cut time-to-new-integration while protecting reliability and cost.

• Set integration architecture and standards: define clear API contracts/SDKs, testing, resilience patterns (idempotency, retries, backoff), and operational guardrails that scale to millions of daily decisions.

• Lead impactful projects from API discovery and prototyping to production launch—writing crisp RFCs, validating with spikes, aligning stakeholders, and landing changes with observable outcomes.

• Raise reliability and performance: establish SLOs, instrument tracing/metrics/logging, build dashboards and runbooks, and continually reduce latency and MTTR.

• Mentor and multiply others: run design reviews, pair on tricky problems, share patterns and docs, and help the team level up on system design and AWS.

• Collaborate in the open: participate in daily syncs, planning, demos, and deep-dives; partner with Product, Security, and Customer teams to turn real-world needs into simple, robust solutions.

• Taktile is a hybrid company with options to work from either our Berlin HQ, or the London or Iasi hub. Taktile will not cover relocation services for this role.

• Fluency in English, both written and spoken, is essential as we operate in a hybrid environment requiring clear and effective communication.

• Strong engineering fundamentals with a passion for simplicity, quality, and ownership.

• Experience with serverless and event-driven architectures (e.g., Lambda, queues, streams).

• Strong observability practices (tracing, metrics, structured logging) for distributed systems.

• Familiarity with AI-assisted development and code generation.

• Fintech domain exposure (KYC, credit bureaus, fraud-prevention APIs).

• Experience leading teams or projects (a plus, not required).

• Prior industry experience with Python.

• Prior industry experience with public cloud providers (preferably AWS).

Work with colleagues that lift you up, challenge you, celebrate you, and help you grow. We come from many different backgrounds, but what we have in common is the desire to operate at the very top of our fields. If you are similarly capable, caring, and driven, you'll find yourself at home here.

Experience a truly flat hierarchy and communicate directly with founding team members. Having an opinion and voicing your ideas is not only welcome but encouraged, especially when they challenge the status quo.

Learn from experienced mentors and achieve tremendous personal and professional growth. Get to know and leverage our network of leading tech investors and advisors around the globe.

Receive a top-of-market equity and cash compensation package.

Get access to a self-development budget you can use to e.g. attend conferences, buy books or take classes.

Receive a new Apple MacBook Pro, as well as meaningful home office set-up.

We're eager to meet talented and driven candidates regardless of whether they tick all the boxes. We're looking for someone who will add to our culture, not just fit within it. We strongly encourage individuals from groups traditionally underestimated and underrepresented in tech to apply.

We seek to actively recognize and combat racism, sexism, ableism and ageism. We embrace and support all gender identities and expressions, and celebrate love in its many forms. We won't inquire about how you identify or if you've experienced discrimination, but if you want to tell your story, we are all ears.

Taktile helps financial institutions make smarter, safer decisions with the power of AI. Our software gives teams the tools to automate complex decisions — like who to onboard, how to underwrite, or when to flag suspicious activity — with full visibility and control.

By combining AI with a rich ecosystem of financial data, Taktile enables companies to adapt their decision-making in real time as markets, customer behavior, and risks evolve.

Our mission is to build the world's leading platform for automated decision-making in financial services — setting the standard for how AI is applied responsibly and effectively in this industry.

We were founded by machine learning and data science experts with deep experience in financial services. Today, our team works across Berlin, London, and New York, bringing together engineers, entrepreneurs, and researchers from companies like Google, Amazon, and Meta, as well as fast-growing startups and enterprise leaders.

Backed by top investors including Y Combinator, Index Ventures, Balderton Capital, and Tiger Global, along with the founders of Looker, GitHub, Mulesoft, Datadog, and UiPath - we're building a world-class organization across all functions and levels to power the next generation of AI-driven decision-making in financial services.