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(senior) fullstack engineer (typescript) - client success platform (m/f/x) Jobs in Berlin

ai engineer — genai & agentic solutions (m/w/d) amazon web services Jobs in Berlin

software engineer backend

NextexAI

<div>NexTex AI is a Berlin-based deep-tech startup building an AI-powered intelligence layer for textile manufacturing.

Our platform combines industrial cameras, retrofit sensors, PLC/SCADA signals, edge computing and artificial intelligence to detect textile defects, optimize production processes and generate sustainability KPIs for CSRD and EU Green Deal compliance.

We are currently preparing our EXIST Startup Grant application and a ProFIT Berlin R&amp;D funding application. Our goal is to build and validate an MVP with pilot textile manufacturers during the first year and scale into one of Europe's leading industrial AI platforms for textile production.

We are looking for a Founding Software Engineer who wants to join the founding team and help build the technical backbone of the company from day one.
<h2 class="jobSectionHeader">
Tasks</h2>

As a Founding Software Engineer, you will be responsible for designing and building the backend systems, cloud infrastructure and AI deployment architecture behind NexTex AI.

You will work closely with the founders, machine learning engineers and future computer vision engineers to create a scalable edge-to-cloud platform for industrial AI applications.

Your responsibilities include:
<ul><li>Building cloud-native infrastructure and deployment pipelines</li></ul>
<ul><li>Designing and developing scalable backend services and APIs</li></ul>
<ul><li>Building dashboards, analytics systems and internal tools</li></ul>
<ul><li>Developing industrial data pipelines for machine, sensor and camera data</li></ul>
<ul><li>Supporting edge-to-cloud communication and industrial integrations</li></ul>
<ul><li>Supporting AI model deployment, monitoring and inference workflows</li></ul>
<ul><li>Structuring textile production data, defect classifications and sustainability KPIs</li></ul>
<ul><li>Working directly with pilot factories and industrial partners</li></ul>
<ul><li>Contributing to product architecture and technical strategy</li></ul>
<h2 class="jobSectionHeader">
Requirements</h2>

Strong software engineering background
<ul><li>Strong Python and C++ programming skills</li></ul>
<ul><li>Experience with FastAPI, Django, Flask, Node.js or similar frameworks</li></ul>
<ul><li>Experience with PostgreSQL or similar database systems</li></ul>
<ul><li>Experience with Docker and containerized environments</li></ul>
<ul><li>Experience with AWS, Azure or Google Cloud</li></ul>
<ul><li>Understanding of REST APIs and scalable software architectures</li></ul>
<ul><li>Fluent English</li></ul>
<ul><li>Ability to work independently in an early-stage startup environment</li></ul>

Preferred Qualifications
<ul><li>Located in Berlin or willing to relocate to Berlin</li></ul>
<ul><li>Professional working proficiency in German (prior work experience in a German-speaking environment preferred)</li></ul>
<ul><li>Experience with Computer Vision and Machine Learning systems (using frameworks such as PyTorch, TensorFlow or ONNX)</li></ul>
<ul><li>Experience with MLOps and model deployment pipelines</li></ul>
<ul><li>Experience with Edge AI deployments (NVIDIA Jetson, CUDA or TensorRT)</li></ul>
<ul><li>Experience with Industrial IoT, PLC/SCADA systems or manufacturing environments</li></ul>
<ul><li>Startup or founding-team experience</li></ul>
<ul><li>Interest in textile manufacturing, sustainability and Industry 4.0</li></ul>
<h2 class="jobSectionHeader">
Benefits</h2>
<ul><li>10% equity participation as a founding team member</li></ul>
<ul><li>Approx. &euro;2,500/month through the German Federal EXIST Startup Grant during the first year</li></ul>
<ul><li>Significant compensation increase planned following successful MVP validation and funding milestones</li></ul>
<ul><li>Opportunity to build a deep-tech startup from day one</li></ul>
<ul><li>Direct impact on product, technology and company strategy</li></ul>
<ul><li>Access to real industrial production environments and pilot textile factories</li></ul>
<ul><li>Work on AI, Computer Vision, Edge AI, Industrial IoT and Sustainability Intelligence</li></ul>
<ul><li>Direct collaboration with experienced founders, academic advisors and industry partners</li></ul>
<ul><li>Startup coaching, legal support and mentoring through EXIST and ProFIT Berlin</li></ul>
<ul><li>Opportunity to shape both the product and company from an early stage</li></ul>
<ul><li>Flexible working environment</li></ul>
<ul><li>Potential CTO-level growth opportunities as the company scales</li></ul>

We are looking for ambitious engineers who want to build something meaningful from the ground up. If you are excited about AI, industrial systems, sustainability and entrepreneurship, we would love to hear from you.

To apply, please submit:
<ul><li>Your CV</li></ul>
<ul><li>LinkedIn profile</li></ul>
<ul><li>A short introduction explaining why you are interested in joining NexTex AI</li></ul>

Selected candidates will be invited to:

1. Introductory discussion with the founders

2. Technical discussion and architecture review

3. Final founder meeting

If successful, you will join NexTex AI as a founding team member with 10% equity and play a key role in building the future of industrial AI for textile manufacturing.

We look forward to hearing from you.</div>

Founding Software Engineer (Backend, Cloud & AI Infrastructure)

idealo internet

<div>Reliable data, resilient services and scalable architectures are at the heart of every CRM interaction at idealo. As a Staff Engineer, you'll shape the technical foundation behind identity management, subscriptions, messaging and customer data, helping build a platform that supports personalized user experiences at scale.
This role combines backend engineering, data engineering and architectural leadership. You'll influence how data flows across systems, how services communicate through event-driven architectures, and how technical decisions support idealo's long-term CRM strategy. Working closely with Software Engineers, Data Engineers and Product Managers, you'll help define technical direction across multiple domains.
You'll work with Java, Spring Boot, Kafka and AWS services including Snowflake, Glue and S3 in a modern cloud-native architecture. From data ingestion and transformation to customer-facing activation, you'll help build reliable systems that teams across idealo depend on every day. When new CRM capabilities go live, you'll see the direct impact of your work in millions of customer interactions.
The position is available in full or part-time.
<h3 class="jobSectionHeader">About your new role</h3><ul><li>
Define and evolve the technical architecture for CRM Tech, ensuring scalable, reliable and maintainable systems that support idealo's long-term business goals.</li><li>
Stay hands-on by designing and developing cloud-native microservices, event-driven applications and backend services with a strong focus on performance, security and operational excellence.</li><li>
Shape the evolution of our data platform by improving data architecture, ETL processes, data warehousing, event flows and integrations across multiple systems and domains.</li><li>
Lead technical initiatives within the team and across the wider product area, working closely with Product Managers and engineering teams to align technical solutions with business needs.</li><li>
Drive continuous improvements across software development, CI/CD pipelines, observability, monitoring and engineering practices while evaluating new technologies where they add measurable value.</li><li>
Mentor engineers through technical guidance, architecture discussions and code reviews, fostering a collaborative engineering culture focused on sustainable technical excellence.</li></ul><h3 class="jobSectionHeader"> 
Skills &amp; Requirements</h3><ul><li>
You bring extensive experience building cloud-native software systems on AWS and designing distributed, event-driven architectures using Java 17+, Spring Boot, Kafka and modern backend technologies.</li><li>
You have deep expertise in data architecture, data warehousing, ETL processes and data integration, combined with hands-on experience working with technologies such as Snowflake, Glue, S3 and MongoDB or other NoSQL databases.</li><li>
You are experienced with containerization and orchestration technologies including Docker and Kubernetes, and are familiar with serverless architectures, AWS Lambda and modern CI/CD practices.</li><li>
You have a strong understanding of software quality, security and reliability, including authentication, encryption, automated testing and secure software development practices.</li><li>
You have a proven track record of leading complex technical initiatives, influencing architectural decisions and aligning engineering work across teams without formal people management responsibility.</li><li>
You take ownership and independently drive topics forward. The confidence to speak up and challenge ideas constructively, paired with openness to diverse perspectives.</li></ul><h3 class="jobSectionHeader">
At idealo you can expect</h3><ul><li>
You want to further your education? We take your personal development goals seriously and, in addition to our idealo Learning Hub, eLearning offerings (e.g., Udemy), coaching &amp; mediation, we also offer you the opportunity to benefit individually from additional learning and development budget.</li><li>
And what about the office? Our office in the heart of Berlin offers free organic breakfast, excellent free lunch (vegan and vegetarian), as well as free coffee, lemonades and after-work beer, in addition to the &quot;standard foosball&quot;. It also has a fabulous rooftop terrace with view of the whole of berlin where you can network with colleagues from our group of companies.</li><li>
In need of additional support in any areas of your life? We offer free counseling and support in all areas of life (professional, private, family, health, etc.) in cooperation with the pme-Familienservice.</li><li>
You want full flexibility on your way to work and beyond? No problem with a job bike or Deutschlandticket - and it's environmentally friendly, too!</li><li>
Want to keep yourself fit? We offer many different fitness and sports options, such as an Urban Sports or Gympass membership, to suit your personal needs.</li><li>
And what else is there? Of course, success must be celebrated! In addition to team events, you can also expect big company events and other moments of organized connection with others in the company and your team throughout the year!</li></ul>
#LI-MW1</div>

Staff Engineer (m|w|d) - Backend and Data

Flix

<div>
 At
 
 Flix
 
 , we offer a tech-driven environment where innovation meets real-world impact, with competitive pay, strong growth opportunities, and a culture of collaboration and ownership.
 
 
 We&rsquo;re looking for a motivated and skilled
 
 Software Engineer
 
 to join our
 
 Geo Information Systems team &ndash; Supply Division
 
 . We build and operate an end-to-end platform that ingests, processes, and visualizes real-time vehicle and ride data, providing valuable insights to both customers and internal users.
 
 
 You'll work on some of Flix's most visible products, building backend services that process large scale streaming data and power real time experiences for millions of passengers every day. Our backend has recently been rewritten in Scala 3 around Kafka Streams, so you'll be building on a modern foundation rather than maintaining legacy systems.
 
 
 You'll join a well-staffed, friendly, and diverse team where engineers take ownership, share knowledge, and help each other grow. While our stack includes Scala, Kafka Streams, AWS, Kubernetes, and Terraform, we care more about strong engineering fundamentals, curiosity, and a willingness to learn than experience with any particular technology.
 
 
 
 About The Role
 
 
 
 <ul>
 <li>
 Build backend services and streaming applications that power real time insights for millions of passengers.
 </li>
 <li>
 Help evolve our engineering practices by strengthening automated testing, expanding end-to-end test coverage, and improving the reliability of our delivery pipeline.
 </li>
 <li>
 Take ownership of services throughout their lifecycle, from design and implementation to deployment, monitoring, and continuous improvement.
 </li>
 <li>
 Work closely with a friendly, cross-functional team to solve complex technical challenges and deliver high-quality products.
 </li>
 <li>
 Help shape our engineering culture through collaboration, knowledge sharing, and pragmatic decision making.
 
 
 </li>
 </ul>
 
 About You
 
 
 
 <ul>
 <li>
 At least 4 years of experience in software development in a similar role
 </li>
 <li>
 Experience with a JVM-based language (we use Scala)
 </li>
 <li>
 Experience building web applications (HTTP APIs)
 </li>
 <li>
 Infrastructure and CI/CD experience (e.g. Terraform, GitLab CI)
 </li>
 <li>
 Ownership mindset: defines metrics and KPIs for your work, takes responsibility for output quality, and automates repeatable tasks where possible
 </li>
 <li>
 Basic data analysis and modelling skills; prior experience with spatial data is a bonus
 </li>
 <li>
 Strong communication and documentation skills
 </li>
 <li>
 Proactive, solution-oriented team player with a knowledge-sharing attitude
 
 
 </li>
 </ul>
 
 Nice-to-Have
 
 
 
 <ul>
 <li>
 Experience building streaming applications with Kafka (AWS Kinesis, or RabbitMQ)
 </li>
 <li>
 Familiarity with Kubernetes, infrastructure management, and CI/CD practices for building and maintaining reliable software delivery pipelines.
 </li>
 <li>
 Experience working with spatial or geolocation data, including GPS coordinates, routing, mapping systems, or location-based services.
 </li>
 <li>
 Hands-on experience with AWS cloud services and cloud-native application development.
 </li>
 <li>
 Exposure to Machine Learning concepts, tools, or applications in a software engineering environment.
 
 
 </li>
 </ul>
 We recognize that everyone carries a unique set of valuable skills and experiences. If you think you could have an impact even though you don't meet 100% of the requirements, we still encourage you to apply. We want to hear from you!
 
 
 
 What We Offer
 
 
 
 <ul>
 <li>
 Travel perks: 12 free Flix vouchers + 12 discount vouchers for friends &amp; family.
 </li>
 <li>
 Work from (M)Anywhere: Depending on your role, work from another location for up to 60 days per year.
 </li>
 <li>
 Hybrid work model: We are an office-first company, but we offer flexibility to balance work and life.
 </li>
 <li>
 Wellbeing support: Access confidential 1:1 counselling, courses, and stress management for yourself and up to four family members.
 </li>
 <li>
 Learning &amp; Development: Take advantage of language classes, training courses, and expert-led sessions to grow your skills.
 </li>
 <li>
 Mentoring Program: Connect with experienced colleagues to gain insights and accelerate your career.
 
 
 </li>
 </ul>
 To view more local benefits specific to each office location, please check out this link: Locations - Flix Career
 
 
 
 Why Join Flix?
 
 
 
 At Flix, we empower our teams to push boundaries and shape the future of mobility. As we continue to scale globally, we harness cutting-edge technology to make mobility smarter, more sustainable, and more affordable.
 
 
 If you&rsquo;re looking for a place where you can drive change and redefine how millions of people travel, Flix is the place where you can lead your journey!
</div>

Software Engineer (m/f/d)

Navera Community Connections

<div><h4 class="jobSectionHeader">Your mission</h4>
About Us 
We&rsquo;re building a new kind of mortgage experience: transparent, digital, and truly customer-centric. We are a Berlin-based B2C Fintech founded by two repeat founders (YC alum, exit) with prior 10+ year careers in investment banking and strategy consulting. We recently raised investment to assemble a 30-person, exceptionally strong core team. Our culture is built on ownership and clarity. We align with you on vision, set clear KPIs and resources together, and then trust your drive and expertise. 
 
The Opportunity 
Buying property (and financing it) is probably the biggest financial decision in someone's life. It's complicated and opaque. As a Senior Backend / DevOps Engineer, you will work alongside our CTO on building and evolving our fintech product. Our core architecture and cloud infrastructure are already in place and running in production &mdash; you&rsquo;ll spend roughly 70% of your time shipping backend features and 30% on infrastructure and operations. You&rsquo;ll have significant autonomy to shape how we build, deploy, and scale.<h4 class="jobSectionHeader">
Your profile</h4>
What You&rsquo;ll Do 
<ul><li>
Developing backend features and APIs within our microservices architecture</li><li>
Designing and implementing event-driven patterns and workflow orchestration</li><li>
Working with PostgreSQL &mdash; schema design, migrations, query optimization</li><li>
Integrating with external APIs (mortgage platforms, CRM, document processing)</li><li>
Extending cloud infrastructure (Terraform, Helm) for new services and capabilities</li><li>
Improving CI/CD pipelines and deployment processes</li><li>
Implementing monitoring, logging, and observability systems</li><li>
Optimizing system performance, reliability, and scalability</li><li>
Collaborating on technical decisions and architecture evolution</li><li>
Ensuring code quality, security, and operational best practices</li></ul> 

Our Stack 
<ul><li>
Backend: Node.js, TypeScript</li><li>
Database: PostgreSQL, Redis</li><li>
Orchestration: Temporal for durable workflows</li><li>
Architecture: Event Driven Microservices Architecture</li><li>
Monitoring: Prometheus &amp; Grafana</li><li>
Cloud: GCP</li><li>
Infrastructure: Terraform, Helm, GitHub Actions CI/CD, Cloudflare</li><li>
AI/ML: LLM integrations</li></ul>
What You Bring 
 
Hard Requirements<ul><li>
Strongly-Typed Backend Language: Strong proficiency in at least one strongly-typed, compiled or strictly-typed language (e.g., Go, TypeScript, Rust, Java, C#, Kotlin) for building high-performance backend services. Solid grasp of async patterns, concurrency, and performance optimization.</li><li>
Event-Driven Architecture: Deep, hands-on experience designing and implementing event-driven systems with messaging patterns (Kafka, RabbitMQ, GCP Pub/Sub, or Redis Streams). You understand eventual consistency, saga patterns, and can articulate trade-offs.</li><li>
Microservices Architecture: Proven track record building, deploying, and scaling microservice-based systems in production. You know when to split services, how to handle distributed transactions, and how to avoid common microservices pitfalls.</li><li>
GCP Hands-On Experience: Real production experience with GCP, not just familiarity. You&rsquo;ve worked with GKE, Cloud SQL, Memorystore, Cloud Storage, Secret Manager, and can navigate the GCP ecosystem confidently.</li></ul> 

Additional Technical Skills<ul><li>
Extensive experience with SQL databases (PostgreSQL preferred)</li><li>
Strong foundation in RESTful API design</li><li>
Proficiency with containerization (Docker) and orchestration (Kubernetes)</li><li>
Experience with CI/CD tools (GitHub Actions, Cloud Build, or similar)</li><li>
Infrastructure as Code with Terraform or similar tools</li><li>
Node.js/TypeScript experience is a plus (our current backend stack)</li><li>
Understanding of observability: structured logging, distributed tracing, metrics, and alerting</li><li>
Knowledge of API security, authentication/authorization (OAuth 2.0, JWT), and data protection</li><li>
Experience with workflow orchestration (Temporal or similar) is a strong plus Mindset &amp; Approach</li>
0<li> 1 Production Experience: You&rsquo;ve been through production launches before and know what it takes &mdash; setting up infrastructure, handling edge cases, ensuring reliability, and managing the inevitable surprises.</li><li>
Pragmatic Perfectionism: You balance technical excellence with business velocity, you know when to refactor and when to ship quickly.</li><li>
Ownership Mentality: You&rsquo;re proactive, resourceful, and accountable for your work, you don&rsquo;t wait to be told what to do.</li><li>
Team Player: You collaborate well with others, give and receive feedback gracefully, and elevate those around you.</li><li>
Systems Thinking: You understand how components interact, design for reliability and maintainability, and think beyond your immediate feature.</li><li>
Clear Communication: You can explain technical decisions to non-technical stakeholders, document your work, and participate constructively in technical discussions.</li><li>
Continuous Learner: You stay current with industry trends, experiment with new technologies, and are energized by technical challenges.</li></ul><h4 class="jobSectionHeader">
Why us?</h4>
What We Offer 
<ul><li>
Competitive salary: &euro;85,000 - &euro;100,000</li><li>
Participation in our employee options programme</li><li>
On-site in Berlin, with flexible remote work as you see fit</li><li>
High autonomy, low politics, fast decision-making</li><li>
The chance to help build something new, with real influence on how people buy homes in Germany!</li></ul><h4 class="jobSectionHeader">
About us</h4>
We are an equal opportunity employer. We value diversity and are committed to an inclusive environment for all employees. If you are excited about the role but don't meet 100% of the requirements, we would still love to hear from you.</div>

Senior Backend & DevOps Engineer (Typescript, Kubernetes & GCP) f/m/d

xata

<div><h2 class="jobSectionHeader">About Xata</h2>
Xata builds Postgres infrastructure for agentic workloads. We let teams spin up isolated database branches in seconds so every AI agent (and every developer) can safely experiment, test, and run workflows against production-like data without putting production at risk.
We've raised $35M (Series A led by Index Ventures and Redpoint), backed by founders like Guillermo Rauch (Vercel), Shay Banon (Elastic), and Neha Narkhede (Confluent), with years of runway ahead.
We're a remote-first team focused on making branching, data movement, and lifecycle management feel fast and dependable for modern software development.<h2 class="jobSectionHeader">
What You'll Be Doing</h2>
You will join our Backend team and build the core services and infrastructure that power the Xata platform.<h3 class="jobSectionHeader">
Backend squads: Data Plane &amp; Control Plane</h3>
Our Backend team is organized into two (fluid) squads:<ul><li>
Data Plane: the core runtime infrastructure that makes Postgres branches real: storage, replication/data movement, provisioning, orchestration, performance, and reliability.</li><li>
Control Plane: the services and public APIs that manage and expose that infrastructure: user-facing product features, workflows/coordination, and close collaboration with Frontend.</li></ul>
Depending on team needs and your strengths, you may work primarily in one squad.<h3 class="jobSectionHeader">
Our Stack</h3><ul><li>
Go</li><li>
PostgreSQL</li><li>
Kubernetes</li><li>
AWS &amp; GCP</li></ul><h3 class="jobSectionHeader">
In this role, you will</h3><ul><li>
Design and build core platform capabilities for our Postgres infrastructure.</li><li>
Develop backend services and APIs that power our hosted and self-hosted offerings.</li><li>
Work on database branching, storage systems, replication, lifecycle management, and orchestration.</li><li>
Own projects end-to-end: identify opportunities, propose solutions, implement, deploy, and operate.</li><li>
Contribute to our growing portfolio of open-source projects, including pgroll, pgstream, and other components of the Xata platform.</li><li>
Collaborate closely with engineers across backend, frontend, product, and platform teams.</li><li>
Participate in architecture discussions and technical decision-making.</li><li>
Participate in on-call rotations and help maintain a reliable platform.</li></ul><h2 class="jobSectionHeader">
About You</h2><ul><li>
You are highly self-directed and thrive in environments with a high degree of ownership. You identify opportunities, propose solutions, and drive projects from idea to production.</li><li>
Significant experience building backend, infrastructure, or distributed systems software in production environments.</li><li>
Strong programming skills in Go, C/C++, Java, or similar languages.</li><li>
Strong understanding of distributed systems concepts (reliability, consistency, concurrency, failure modes).</li><li>
Experience with cloud infrastructure and technologies such as Kubernetes and Docker.</li><li>
Familiarity with PostgreSQL and database systems.</li><li>
Strong written communication skills and the ability to work effectively in a remote environment.</li></ul><h3 class="jobSectionHeader">
Nice to Have</h3><ul><li>
Experience working on database technologies or PostgreSQL internals.</li><li>
Experience building storage or infrastructure systems.</li><li>
Experience developing with Rust.</li><li>
Experience contributing to open-source projects.</li><li>
Experience building developer tools or platform products.</li></ul><h2 class="jobSectionHeader">
Working at Xata</h2><ul><li>
We're stable. We've raised $35M and have years of runway.</li><li>
We're remote-first and have more than a decade of experience building distributed teams.</li><li>
We work asynchronously and keep meetings to a minimum.</li><li>
You'll have significant autonomy, ownership, and the opportunity to shape both the product and the company.</li><li>
We're open source at our core and deeply care about our developer community.</li><li>
Small team, large impact.</li><li>
Opportunity to shape the future of Postgres infrastructure in the agent era.</li><li>
Xata is female-founded and has an all-female board of directors.</li></ul><h2 class="jobSectionHeader">
What We Offer</h2><ul><li>
Competitive salary and equity.</li><li>
30 vacation days (plus local public holidays).</li><li>
Comprehensive health insurance coverage.</li><li>
Budget for a co-working space of your choice.</li><li>
Learning budget for conferences, courses, and books.</li><li>
Flexibility, autonomy, and impact from day one.</li><li>
Two company off-sites per year, with partners and children welcome.</li><li>
Significant opportunities for growth, leadership, and career development.</li></ul></div>

Software Backend Engineer (Go/Rust)

SumUp

<div>About the team
SumUp&rsquo;s Point-of-Sale (POS) solution empowers cafes, shops, bars, hair salons, and other businesses to operate efficiently and grow. It offers a wide range of features, including product catalogs, inventory management, business analytics, compliance support, and loyalty tools.
Our Fiscalization team will accelerate making the following countries fiscally compliant: Italy, Sweden, Norway, Belgium, Austria, and many other European countries. They will also start building the path for integrating with third parties and fiscalizing receipts.
As a Senior Backend Engineer, you&rsquo;ll collaborate with a dynamic, cross-functional team of Product Managers, Product Designers, Engineering Managers, and fellow engineers.
About the role
You will be working on secure backend systems to ensure our SumUp&rsquo;s Point of Sale (POS) products are compliant in the different countries in our roadmap. Furthermore, you will work with the Fiscalization squad to understand the challenge in each market to design a unique solution to delivery.
You&rsquo;re a developer who values user-centric design, precision, and seamless collaboration. You bring structure to communication and thrive in a cross-functional environment.
This is also an onsite role based in Berlin.
What you&rsquo;ll do
<ul><li>Build and maintain fiscal compliance solutions to enable SumUp's expansion across Italy, Sweden, Norway, Belgium, Austria, and other European markets.
</li><li>Develop integrations with third-party services for receipt fiscalization and regulatory reporting systems.
</li><li>Navigate SumUp's complex POS ecosystem and master fiscalization frameworks across multiple jurisdictions.
</li><li>Collaborate with distributed squad members and stakeholders across 5+ cities in a hybrid environment.
</li></ul>You&rsquo;ll thrive in this role if:
<ul><li>You have 5+ years experience in backend engineering with Java and/or Kotlin.
</li><li>You have a strong understanding of fundamental system architecture, design principles, data modeling, and API design.
</li><li>You have a strong experience with distributed and fault-tolerant systems.
</li><li>You have user-level experience working with AWS and Kubernetes.
</li><li>You have good knowledge of Kafka &amp; Postgres &amp; CQRS.
</li></ul>Why you should join SumUp
<ul><li>A dedicated annual Learning &amp; Development budget for attending conferences and/or advancing your career through further education
</li><li>Enrollment onto our virtual stock ownership program - you will own a stake in SumUp&rsquo;s future success
</li><li>A corporate pension scheme
</li><li>28 days paid leave + 1 for birthday
</li><li>You&rsquo;ll attend global offsites and/or hackathons.
</li><li>You'd enjoy other great benefits such as Urban Sports Club subsidy, Kita placement assistance, subsidized office lunches and other location-tailored benefits, Babbel language platform subscription and more!
</li></ul>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&rsquo;t tick every box, it&rsquo;s ok too because it means you have room to learn and develop your career at SumUp.</div>

Senior Backend Engineer - Fiscalization

THRYVE

<div>
 
 
 Product Engineer (Full Stack/AI) Berlin | On-site/Hybrid
 
 
 
 
 
 
 We're partnering with an ambitious health-tech startup building AI-powered software that helps clinicians make better decisions and improve patient outcomes, working on one of the hardest and most meaningful challenges in healthcare: turning complex clinical data into products that help medical teams identify risk earlier, intervene faster, and ultimately improve lives.
 
 
 
 
 
 We're looking for a strong engineer who wants to own products, not tickets.
 
 
 
 
 
 You'll work across backend, frontend, AI integrations, and product strategy, taking features from idea to production. You'll collaborate directly with founders, designers, clinicians, and engineers to solve complex technical problems and ship software that genuinely matters.
 
 
 
 
 
 
 What You'll Work On
 
 
 <ul>
 <li>
 Building production-grade AI features and workflows
 </li>
 <li>
 Designing scalable backend systems and APIs in Python
 </li>
 <li>
 Developing modern React/TypeScript applications
 </li>
 <li>
 Integrating machine learning models into real-world products
 </li>
 <li>
 Working with complex, high-value healthcare data
 </li>
 <li>
 Improving reliability, observability, testing, and engineering quality across the platform
 </li>
 </ul>
 
 
 
 
 
 We're Looking For
 
 
 <ul>
 <li>
 Strong software engineering fundamentals
 </li>
 <li>
 Professional experience with Python and React/TypeScript
 </li>
 <li>
 Product-minded engineers who enjoy understanding user problems
 </li>
 <li>
 Builders who take ownership and thrive in small, high-performing teams
 </li>
 <li>
 Engineers excited by AI-enabled products and difficult technical challenges
 </li>
 <li>
 M.Sc. in a STEM field
 </li>
 </ul>
 
 
 
 
 
 Nice To Have
 
 
 <ul>
 <li>
 Experience with AI/ML systems
 </li>
 <li>
 Cloud infrastructure and DevOps experience
 </li>
 <li>
 Exposure to healthcare, regulated software, or data-intensive products
 </li>
 </ul>
 
 
 
 
 
 Why Join?
 
 
 <ul>
 <li>
 Build technology with real-world impact
 </li>
 <li>
 Work directly with exceptional founders and engineers
 </li>
 <li>
 Own major product initiatives end-to-end
 </li>
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 Solve technically challenging problems at the intersection of software, AI, and healthcare
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 If you're the kind of engineer who enjoys moving quickly, taking ownership, and building products from the ground up, we'd love to hear from you.
 
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Full Stack Engineer

Explore 96+ Software engineer backend in Berlin this July. Find roles across top companies and apply now to boost your career.