
Taxfix · Berlin
OUR STORY: Every year millions of people are either filing their taxes in fear or giving up on their tax refund altogether. We're working on fixing that. Our i...
Every year millions of people are either filing their taxes in fear or giving up on their tax refund altogether. We're working on
fixing that. Our intuitive app enables anyone, regardless of education or background, to file their taxes with newfound
confidence.
Spread across Germany, Spain and the UK, the team at Taxfix Group with its brands Taxfix and Steuerbot, is a compassionate group
of solution-finders. We speak our minds openly, and with over 400 professionals, including tax experts, developers, and IT
security experts, we're rich in ideas and voices. The group has facilitated more than 3.5 billion euros in tax refunds for its
customers since its founding in 2016.
As our Staff Systems Engineer within the IT & Infrastructure team, you'll be responsible for keeping the enterprise systems that
power Taxfix running reliably, securely, and intelligently — from cloud infrastructure and identity management to network, device,
and application performance. Reporting to our Director of IT & Infrastructure, and collaborating closely with cross-functional
stakeholders across the business, you'll architect and operate the backbone that enables every team at Taxfix to do their best
work. In a company that moves fast and thinks big, you'll be the person who makes sure the foundation never wobbles.
performance, and security at all times.
processes to govern both human and agentic identities in a scalable, secure way.
and configuration end to end.
applied across the board.
become incidents.
hybrid workforce.
infrastructure maintenance.
enablement of internal app deployment.
application owners.
contributing strategic thinking alongside hands-on execution.
components such as Apache and Ruby.
and scale cloud environments that real businesses depend on.
VMware, and you're comfortable navigating complex, layered infrastructure.
and resolve network issues with confidence.
consistently applied and continuously improved.
infrastructure smarter and more maintainable.
them healthy and secure.
faster incident response and better decision-making.
hands-on experience to make systems work together.
get-togethers—virtually and in person when possible.
Excited? So are we. Learn more about Team Taxfix on our blog and get a glimpse of our culture.
At Taxfix, we believe that incredible things happen when you have a wealth of perspectives and experiences. We're proudly
committed to equal employment and development opportunities no matter your gender, race, religion, age, sexual orientation,
colour, disability, or place of origin. To help mitigate any potential unconscious biases, we ask that you refrain from including
your picture, age, or marital status on your CV. Let your experiences speak for themselves.
Not sure if you meet all the requirements for this role? Please apply anyway. You might bring something special to the team that
we hadn't considered previously.
INTRO At Adsquare, our mission is driven by our core focus: * Passion – Solving complex challenges with great people, tech, and data. * Niche – Location Intelligence for Programmatic Advertisers. Our core values are integral to everything we do: * Drive: We turn ambition into action. * Resilience: We adapt, persevere, and grow stronger. * No BS: We value honesty, transparency, and clear communication. * Humble: We choose modesty over vanity and let results speak for themselves. * Moral Compass: We do the right thing with fairness, integrity, and respect. We seek candidates who not only bring top-tier technical expertise but also embody these values in every aspect of their work. ABOUT THE TEAM We are looking for a Staff Data Analytics Engineer to join our technical proficiency track. This is a highly technical, Individual Contributor (IC) role. You will act as the Technical Lead for your squad—making critical architectural decisions, defining engineering standards, and driving cross-squad collaboration—without the responsibilities of people management. You will be the technical north star for the team, approaching extremely complex data problems with a rigorous software engineering mindset. You will design, build, and oversee production-grade data platforms that process massive volumes of geo-spatial data, audience attributes, and geo-location time-series data. YOUR PROFILE We are looking for an exceptional engineer who has a proven track record of acting as a technical leader and domain expert in heavy data environments. Must-Have Skills: * 7+ years of experience in Data Engineering, Analytics Engineering, or Backend Development with a deep focus on massive data systems. * Geo-Spatial & Time-Series Expertise: Proven, hands-on experience handling massive datasets specifically involving geo-spatial (GIS) data, audience attributes, and high-frequency time-series data. * Advanced Software Engineering (Python): Mastery of Python beyond standard data scripting. You write highly modular, object-oriented code. You have deep, practical experience with Test-Driven Development (TDD), mocking, exception handling, and performance profiling, functional programming. * Architectural Vision: Deep expertise in designing scalable data architectures using both relational and horizontally scalable data warehouses/lakehouses (e.g., Snowflake, Redshift, Athena, StarRocks, Iceberg). You deeply understand query execution plans, partitioning, clustering, and cloud cost governance. * Big Data Frameworks: Extensive experience with large-scale data processing frameworks (e.g., Apache Spark, PySpark, AWS EMR, Glue) to handle massive throughput. * Expert SQL & dbt: You design scalable, robust data models (using Jinja, macros, incremental strategies) that serve as the foundation for our entire analytics layer. * AWS Cloud Native & IaC: Hands-on experience building architectures in AWS (e.g.: AWS Lambda, AWS Batch, Glue, StepFunctions, S3, EC2, ECS, ECR, Fargate) and deploying them using Infrastructure as Code (Terraform). * Leadership Skills: Superb organizational and communication skills. You can distill complex architectural trade-offs for non-technical stakeholders and drive technical consensus among your engineering peers. Nice-to-Have Skills: * Polyglot Programming: Experience with a compiled or strongly typed language (e.g., Scala, Go, Kotlin, C++ or Java). * Advanced Orchestration: Experience defining complex dependency graphs in tools like Airflow, Dagster, or Prefect. WHAT YOU WILL DO * Technical Leadership & Architecture: Act as the principal architect for your squad. You will design horizontally scalable, cost-efficient, production-grade data solutions capable of handling TB-scale, highly dimensional datasets. * Engineering Excellence & TDD: Champion rigorous software engineering principles. You will lead the adoption of Test-Driven Development (TDD), CI/CD workflows, and clean code architectures. You ensure our codebase is resilient, testable, and maintainable. * Cross-Squad Impact: Drive technical alignment beyond your immediate team. You will act as an engineering ambassador, solving architectural issues that span multiple squads, keeping our technical processes synchronized, and aligning your squad's work with global engineering priorities. * Domain Mastery: Leverage your deep expertise to build high-value data products on top of location signals and audience attributes. You don't just process data; you deeply understand its geographic and time-series nature to unlock its business value. * Mentorship & Code Quality: Be the technical mentor for Senior, Mid, and Junior engineers. Through highly insightful code reviews, architectural feedback, and pair programming, your input will consistently be the source of others’ learning and growth. * Data Observability: Proactively build monitoring and alerting frameworks at the infrastructure level to catch anomalies in our multi-terabyte data streams before they impact downstream products. WHY US? On top of a competitive package… * We are open to flexible work models: we work on a hybrid mode and remotely * To encourage education and professional growth, we offer an individual yearly budget of 1.200€ * You are entitled to 30 vacation days per year * We offer Urban Sports Club membership, company pension scheme * Regular team events and company events organised by our People team (Trust us, they know how to throw a party!) * We equip you with the latest hardware and provide you with all the tools you need to thrive SALARY RANGE (ANNUAL ON-TARGET EARNINGS) 90,000 - 100,000 euros RECRUITING PROCESS COULD REQUIRE ON SITE STEPS For technical roles (Data, Engineering, and Product), candidates are encouraged to upload any technical certifications referenced in their CV via the "Other Documents" section of the application form. Alternatively, certification documents may be submitted after the first technical interview. Any certifications listed on the CV must be provided and successfully validated before proceeding to the second technical interview stage. * Step 1: Short 30-min take-home technical quiz. * Step 2: Value-based interview (30 mins). * Step 3: Deep-dive technical interview (1.5 hours) with the Data team. * Step 4: Practical data-crunching challenge. * Step 5: Team Meet & Greet — the final step to ensure we’re a great fit for each other. WORK MODEL Hybrid DESIRED START DATE Asap
At praxipal, we are building an AI-powered healthcare admin workforce to address the global shortage of medical staff. Medical assistants are too valuable to spend their days chasing callbacks, cleaning up schedules, sending repetitive messages, or wrestling with invoicing and documentation workflows. Staff should spend time on patients. That’s why we build Luna. Our AI receptionist, Luna, answers and automates phone calls and she’s loved by more than 100 medical practices. Right now, we’re expanding her from calls to end-to-end patient communication across any channel. Over the next years, we’ll grow her into an AI worker that automates all administrative processes in medical practices, embedded directly into the systems teams already use. We’re backed by one of Europe’s leading investors and are one of the fastest growing healthtech startups in Germany. Our team has previously worked and studied at Palantir, Amazon, SAP, the University of Cambridge, and Hasso Plattner Institute. We are hiring a Forward Deployed Engineer to take technical ownership of our most important customer deployments. THE ROLE This is a hands-on role with end-to-end responsibility for customer deployments and technical success. You will work directly with a subset of our customers, configure and customize our product to their specific environments, and ensure that Luna works reliably in real-world healthcare settings. You will also build automations and internal tooling that allow the forward deployed engineering team to onboard customers faster and more reliably over time. This role sits at the intersection of engineering, product, and customer reality. The role is on-site in Berlin and requires fluent German. WHAT YOU’LL DO Core Responsibilities (You will be the primary owner and decision-maker for the customers you support.) * Own the technical onboarding of new customers, from first deployment to stable production usage * Configure and customize Luna to fit different practice setups, workflows, and constraints * Implement customer-specific solutions where necessary and feed recurring patterns back into the core product * Act as the technical point of contact for your customers when things don’t behave as expected * Identify friction in onboarding and customer operations and build automations or tooling to remove it Project-Based Work * Build internal tools, scripts, and automations that help scale forward deployed engineering * Support Sales, Customer Success, and Marketing with technical insights, analytics, and targeted improvements * Help investigate and resolve production issues affecting customers, and turn learnings into lasting fixes WHAT WE’RE LOOKING FOR Must-Have * Hands-on programming experience * Proven ability to own software or technical systems end-to-end * Comfortable working directly with customers on technical topics * Fluent German (spoken and written) * Looking forward to working on-site in Berlin in a fast-moving environment in build-mode Nice-to-Have * Strong hands-on programming experience in TypeScript and/or Python * Prior experience in startups or scale-ups * Experience with observability and debugging tools (e.g. Sentry, Grafana, Langfuse) * Prior responsibility for customer-facing technical work * Experience improving operational or onboarding processes through automation LOCATION & COMPENSATION * Location: Berlin (100% on-site) * Competitive compensation: €65,000–€90,000 total compensation (cash + equity) * Office perks: A beautiful workspace in Berlin Mitte, complete with a ping pong table, PlayStation, and VR setup. * Team bonding: Regular get-togethers, happy hours and offsites. * Mobility: Deutschland-Ticket Jobticket * Health and productivity: Free dinners, subsidized lunches and sponsored Urban Sports Club subscription. If you want to shape the next generation of healthcare software with us, apply now.
At praxipal, we are building an AI-powered healthcare admin workforce to address the global shortage of medical staff. Medical assistants are too valuable to spend their days chasing callbacks, cleaning up schedules, sending repetitive messages, or wrestling with invoicing and documentation workflows. Staff should spend time on patients. That’s why we build Luna. Our AI receptionist, Luna, answers and automates phone calls and she’s loved by hundreds of medical practitioners. Right now, we’re expanding her from calls to end-to-end patient communication across any channel. Over the next years, we’ll grow her into an AI worker that automates all administrative processes in medical practices, embedded directly into the systems practice teams already use. We’re backed by one of Europe’s leading investors and are one of the fastest growing healthtech startups in Germany. Our team has previously worked and studied at Palantir, Amazon, SAP, the University of Cambridge, and Hasso Plattner Institute. We're hiring a Senior Software Engineer to help us scale Luna from hundreds of medical practitioners to hundreds of thousands. THE ROLE This is a deeply technical, high-ownership engineering role. You'll design, build, and operate production systems end-to-end - from architecture through to deployment and beyond. We move fast and learn faster. One week you might be shipping a new AI agent capability; the next, you're re-architecting an integration layer or hardening our platform for the next order-of-magnitude growth. You'll always be working on whatever matters most for Luna's future. You'll ship to production daily, own outcomes from first commit to last alert, and raise the technical bar for the entire engineering organization. This role is on-site in Berlin. WHAT YOU'LL DO SHAPE THE PRODUCT THAT TRANSFORMS EUROPE’S HEALTHCARE OPERATIONS * Design and ship AI-powered workflow automations that give medical staff hours back every day * Build intelligent agents that turn Luna from an AI receptionist into a full AI-based employee for medical practices * Engineer deep, reliable integrations into practice management systems - unlocking capabilities no competitor can match ARCHITECT A PLATFORM BUILT FOR MASSIVE SCALE * Design infrastructure on AWS and GCP that can serve hundreds of thousands of practices with high availability and low latency * Own the full reliability lifecycle: observability, alerting, incident response, and postmortems that eliminate entire failure classes * Build CI/CD pipelines and deployment tooling that make shipping fast, safe, and repeatable MULTIPLY THE TEAM'S VELOCITY AND IMPACT * Create reusable patterns, internal tooling, and integration test suites that let us onboard new services and practices at scale * Champion engineering excellence through better abstractions, cleaner code, and well-written runbooks WHAT WE'RE LOOKING FOR MUST-HAVE * You've shipped and operated real products used by real customers, and you know what it takes to keep them running * You communicate with clarity and collaborate naturally in high-tempo, low-hierarchy teams * You architect and build production-grade software with confidence - from system design to shipping and operating at scale * You have several years of experience in startups * You’re excited to work on-site in Berlin in a fast-moving environment in build-mode NICE-TO-HAVE * Experience with TypeScript, Python, or Rust * Hands-on experience building AI agents or LLM-powered products * Proficiency with Kubernetes, AWS/GCP, CI/CD systems, or infrastructure-as-code * Track record of building complex third-party integrations * Exposure to healthcare workflows or regulated environments LOCATION & COMPENSATION * Location: Berlin (100% on-site) * Competitive compensation: €100,000–€130,000 total compensation (cash + equity) * Office perks: A beautiful workspace in Berlin Mitte, complete with a ping pong table, PlayStation, and VR setup * Team bonding: Regular get-togethers, happy hours and offsites * Health and productivity: Free dinners, subsidized lunches and sponsored Urban Sports Club subscription * Mobility: Deutschland-Ticket Jobticket If you want to shape the next generation of healthcare software with us, apply now.