Senior Software Engineer in AI at Realist | Berlin

Join Synthflow AI, a revolutionary no-code platform designed for deploying voice AI agents that transform contact center operations and business process outsourcing (BPO) at scale. We empower mid-market and enterprise companies to efficiently manage routine calls, ultimately saving valuable time and resources for their teams.Our voice AI agents have made a significant impact:Saved over 5 million hours in contact center operationsIncreased call answering rates by 35% compared to non-AI operatorsHandled 45 million calls with an impressive 99.9% uptimeSupported by leading investors such as Accel, Atlantic Labs, and Singular, we are proud to serve over 1,000 customers and drive an industry shift towards advanced and accessible conversational AI.About the Role:We are seeking a Senior Python Engineer to develop robust, production-grade software and backend systems, focusing on databases, scalable APIs, and core engineering principles.Your Key Responsibilities:Design, develop, and maintain our backend infrastructure, ensuring scalability, performance, and reliability.Create and enhance data models and persistence layers with a strong emphasis on PostgreSQL best practices, including schema design, migrations, query optimization, indexing, and transactions.Develop and support enterprise-grade APIs using FastAPI, focusing on versioning, authentication/authorization, and observability.Participate in pair programming to foster code quality and team collaboration.Manage deployments and environments with Kubernetes and GitOps practices (ArgoCD).Conduct code reviews, offering constructive feedback and ensuring adherence to best practices.Contribute to end-to-end product delivery, including occasional front-end feature development when necessary.Qualifications:5+ years of experience as a Python developer, successfully delivering production systems.Proven expertise in building scalable and extensible data infrastructures.Strong familiarity with relational databases, particularly PostgreSQL (performance tuning, migrations, transactions).Experience in developing and maintaining enterprise-grade APIs using FastAPI.Solid understanding of engineering fundamentals and best practices.

Join Synthflow AI, a pioneering enterprise AI agent platform, dedicated to streamlining customer operations through voice, chat, and messaging. Our innovative agents automate routine interactions, allowing teams to concentrate on mission-critical tasks.Automated over 20 million hours of operations.Achieved 60% more calls answered compared to non-AI operators.Handled 150 million interactions with an impressive 99.99% uptime.Supported by renowned investors including Accel, Atlantic Labs, and Singular, we proudly serve over 1,000 satisfied customers, and have been recognized as one of Germany's most promising startups.What You'll DoContribute to growth initiatives across various channels such as paid, organic, content, and partnerships.Create and publish content to enhance market understanding of voice AI, including blog posts, competitive analyses, and customer success stories.Assist in building and optimizing lead generation funnels—landing pages, email campaigns, and calls-to-action.Conduct competitive research, monitor market trends, and provide actionable insights to the team.Support event preparations, outreach efforts, and partnership coordination.Analyze performance data to determine conversion rates, identify trends, and suggest future strategies.Be proactive in tackling various tasks as needed; roles in a startup can evolve quickly.Who You AreCurrently pursuing a Bachelor's or Master's degree with at least 6 months remaining before graduation.Curious about AI, startups, and the journey from early-stage ventures to scalable businesses.Exceptional written communication skills in English; proficiency in German is a plus.Self-starter, comfortable navigating ambiguity and solving problems independently.A blend of creativity and analytical thinking—you can craft compelling landing pages and assess their performance through data.Highly proactive—take initiative without waiting for direction.Preferred QualificationsExperience creating personal projects—be it a side venture, newsletter, community, or product.Familiarity with SEO, paid advertising, CRM tools, or marketing automation platforms.Basic knowledge of AI/LLM products and their applications.

At Synthflow AI, we are revolutionizing customer operations through our advanced enterprise AI agent platform that seamlessly integrates voice, chat, and messaging. Our intelligent agents automate routine interactions, empowering teams to concentrate on high-impact tasks.Successfully automated over 20 million hours of operations60% more calls managed compared to traditional operators using non-AI technologiesHandled 150 million interactions with an impressive 99.99% uptimeSupported by leading investors such as Accel, Atlantic Labs, and Singular, and trusted by over 1,000 clients, we are proud to be recognized as one of Germany's most promising companies.About the PositionWe are seeking a dynamic working student who is eager to contribute to the growth of one of Europe’s most rapidly expanding AI enterprises. At Synthflow, you won’t merely be organizing social media posts or updating spreadsheets; you’ll be a pivotal part of our growth engine, working hands-on with the founding team.With over 65 million AI voice calls powered and $20 million raised, our marketing efforts must be as innovative as our technology. You will take charge of projects from initiation to completion, ensuring your work directly impacts our success.A successful tenure could lead to a full-time position following graduation.Your ResponsibilitiesLead and execute growth experiments across various channels, including paid, organic, content, and partnershipsDevelop educational content about voice AI, including blog posts, case studies, landing pages, and social media updatesCreate and optimize customer journey funnels from initial contact to activationAnalyze performance metrics, discontinue ineffective strategies, and swiftly pivot to new ideasContribute to Synthflow’s public image through effective messaging, positioning, and competitive analysisCollaborate closely with product and sales teams to leverage customer insights for marketing strategiesIdeal Candidate ProfileCurrently pursuing a Bachelor's or Master's degree (penultimate year, with at least 12 months remaining before graduation)Genuine passion for AI, startups, and understanding the growth trajectory from early stages to scalingExceptional written communication skills in English; proficiency in German is advantageousAbility to thrive in ambiguous environmentsEqually analytical and creative; capable of crafting compelling headlines and measuring their effectiveness

Join Synthflow AI, a revolutionary enterprise AI agent platform that streamlines customer operations across various channels including voice, chat, and messaging. Our intelligent agents manage routine interactions at scale, allowing teams to concentrate on high-impact projects.Over 20 million hours of operations automated60% more calls answered compared to non-AI operators150 million interactions managed, boasting a 99.99% uptimeSupported by esteemed investors including Accel, Atlantic Labs, and Singular, and trusted by over 1,000 clients, we are proud to be recognized as one of the most promising companies in Germany.

At Synthflow AI, we offer a no-code platform for deploying voice AI agents that streamline phone calls within contact center operations and business process outsourcing (BPO) at scale. Our innovative solutions empower mid-market and enterprise businesses to efficiently manage routine calls, saving time and resources for their teams.Our AI agents have made significant contributions:Saved over 5 million hours in contact center operations35% increase in calls answered compared to traditional operatorsHandled 45 million calls with an exceptional 99.9% uptimeSupported by esteemed investors like Accel, Atlantic Labs, and Singular, and trusted by over 1,000 clients, we are at the forefront of the shift towards advanced and accessible conversational AI.About the RoleWe are seeking a highly skilled Enterprise Account Executive to spearhead strategic sales efforts across the DACH region and wider EU markets. You will oversee the entire enterprise sales process—from prospecting and conducting consultative discovery to negotiating and closing deals—engaging directly with senior executives, innovation teams, and technical stakeholders.This pivotal role will allow you to shape Synthflow’s enterprise go-to-market strategy, influence product development through client insights, and forge long-lasting partnerships that lead to tangible business results.What You’ll DoDrive Strategic Growth: Identify, connect with, and close enterprise-level opportunities, particularly in Germany, Austria, and Switzerland.Full-Cycle Ownership: Manage complex, multi-stakeholder sales processes from initial discovery to contract execution and transition to Customer Success.Consultative Selling: Analyze client challenges, align business needs, and create customized AI automation solutions that ensure ROI.Executive Engagement: Cultivate trusted relationships with senior decision-makers, including C-suite executives and IT leaders.Collaborate Cross-Functionally: Work alongside Product, Engineering, and Marketing teams to align client requirements with our product roadmap.Expansion & Retention: Develop strategic accounts and discover upselling and cross-selling opportunities.Shape Strategy: Contribute to Synthflow’s enterprise strategy through insights and feedback.

At Synthflow AI, we are revolutionizing the way businesses handle communication through our no-code platform for voice AI agents. Our solutions automate phone calls across contact center operations and business process outsourcing (BPO) at scale, enabling mid-market and enterprise companies to efficiently manage routine calls, ultimately saving time and resources.Our impact is already significant:More than 5 million hours of contact center operations saved.35% increase in calls answered compared to traditional operators.Handled 45 million calls with an impressive 99.9% uptime.Supported by industry leaders such as Accel, Atlantic Labs, and Singular, and trusted by over 1,000 customers, Synthflow is at the forefront of the conversational AI movement.Role OverviewAs a Forward Deployed Engineer (FDE) at Synthflow, you will play a pivotal role in bridging our advanced technology with our clients' operational success. You will collaborate closely with enterprise clients post-sale to implement, customize, and optimize our AI phone agent solutions tailored to their specific environments.This role demands a unique blend of technical expertise and customer-centric empathy, as you will translate complex business challenges into scalable and effective solutions. You will ensure seamless deployment, user adoption, and measurable impact, making you both a builder and a strategic partner in our clients' journeys toward maximizing the value of Synthflow’s platform.

Join Synthflow AI, a pioneering no-code platform for deploying voice AI agents that revolutionize contact center operations and business process outsourcing (BPO) at scale. We empower mid-market and enterprise companies to streamline routine calls, significantly saving time and resources for their teams.Our AI agents have made a remarkable impact:Saved over 5 million hours in contact center operations.Achieved 35% more calls answered compared to traditional operators.Handled 45 million calls with an impressive 99.9% uptime.Supported by leaders like Accel, Atlantic Labs, and Singular and trusted by over 1,000 customers, we are at the forefront of the conversational AI industry, driving a shift towards sophisticated and accessible solutions.About the RoleAs a People Operations Generalist at Synthflow, you will take full ownership of our people processes, ensuring seamless management from onboarding through offboarding, while maintaining compliance and efficiency. You will be the go-to expert for everything related to People Ops, balancing hands-on execution with process improvement and automation.Although your primary focus will be on our European operations, your contributions will also strengthen our globally distributed teams. You will collaborate closely with Finance, Legal, and Leadership to ensure that our people operations scale with our growth, remaining compliant and centered around employee well-being.This is an ideal opportunity for someone who thrives in a dynamic, high-ownership environment, enjoys managing diverse operational tasks, and is eager to help shape an outstanding employee experience in a growing AI company.

Hello! At AMBOSS, we are on a mission to revolutionize medical education, and we are seeking a dedicated Software Engineer to join our innovative team!About AMBOSSFounded in 2012, AMBOSS is a forward-thinking learning and clinical decision support platform designed to empower medical professionals worldwide. Our cutting-edge technology transforms the way healthcare providers acquire and implement scientific knowledge, enabling them to offer the best possible care. Our team, known as AMBOSSians, is passionate about supporting clinicians and making their practice easier and more enjoyable.Why Join Us?As a Software Engineer in our ExamPrep Team, you will play a pivotal role in supporting healthcare learners as they prepare for exams. We provide personalized and adaptive Qbank content, predictive analytics, and tailored study recommendations, fostering confidence in approaching their assessments. Your contributions will directly impact the success of current and future medical professionals.Curious about our culture? Check out our video to discover what sets us apart.Your Responsibilities:Explore a diverse and complex product landscape, becoming an expert in both technical aspects and medical education requirements.Enhance personalized learning experiences through the deployment of deep analytical insights.Take ownership of feature development from inception through deployment and monitoring.Create testable prototypes and transition them into robust production systems.Contribute to the strategic vision and roadmap of the team’s product development.Collaborate closely with engineers, product managers, designers, medical editors, and marketing teams.Foster a strong engineering culture by sharing knowledge, practices, and experiences.Participate in team workshops at AMBOSS offices (travel approximately every two months).Your Profile:Proficient in Python with strong backend development expertise.Experience with frontend technologies (React, JavaScript/TypeScript) in a professional setting.Ability to work collaboratively in a team-oriented environment.Enthusiasm for continuous learning and professional development.

About dltHubdltHub is at the forefront of innovation, leveraging the dlt library, a leading open-source Python tool for data loading with approximately 4 million downloads monthly. We are on a mission to develop the next generation of AI-native data tools built upon our robust open-source foundation.Our team is agile and thrives on experimentation, automation, and user-centric AI workflows. Founded by seasoned data scientists and machine learning engineers, we have our roots in Berlin and a burgeoning presence in the United States.We are supported by prominent investors including Bessemer Venture Partners, Foundation Capital, Dig Ventures, and technical pioneers from Hugging Face, Instana, Matillion, and more. Our core values drive us: we communicate with courage, prioritize meaningful projects, automate continuously, maintain high energy, honor our commitments, and achieve success collectively. About the RoleAs we continue to enhance our AI-first data platform, we are seeking a passionate and entrepreneurial software engineer in Berlin. This role offers the opportunity to tackle data platform challenges related to ingestion, storage, performance, reliability, observability, and AI-enhanced developer experiences. If you are driven, eager to collaborate with a motivated team, and prioritize high-quality code and innovative data systems, this position is tailored for you.

scalablegmbh is seeking an AI Software Engineer with a strong background in Python to join the team in Berlin. This position centers on building AI solutions that support a range of projects and drive progress within the company. Role overview The AI Software Engineer will use Python to design and implement AI-driven features. Collaboration with colleagues is essential, as projects often require joint problem-solving and creative thinking. The work involves addressing technical challenges and contributing to the ongoing development of AI technologies at scalablegmbh. What you will do Develop AI solutions using Python Work closely with team members to deliver project goals Contribute ideas and technical expertise to shape future AI initiatives Requirements Experience with Python in AI-focused projects Enjoy working in a collaborative setting Motivation to solve complex problems and advance AI technology

Synthflow AI is a leading no-code platform that specializes in deploying voice AI agents designed to automate phone calls across contact center operations and business process outsourcing (BPO) at scale. Our mission is to empower mid-market and enterprise organizations to manage routine calls efficiently, saving valuable time and resources.Our AI agents have made a significant impact:Saved over 5 million hours in contact center operations.Increased call answer rates by 35% compared to non-AI operators.Handled 45 million calls with an impressive 99.9% uptime.Supported by Accel, Atlantic Labs, and Singular, and trusted by over 1,000 customers, we are at the forefront of a transformative shift towards sophisticated and accessible conversational AI.About the RoleAs the AI Delivery Manager, you will take ownership of the complete delivery process for enterprise Voice AI programs—from signed Statement of Work (SOW) or Proof of Concept (POC) through to go-live and handover—ensuring customers achieve measurable outcomes within budget and on schedule.In this role, you will oversee every project and production deployment from the moment contracts are signed to the go-live phase and subsequent renewals. You will act as the project leader, ensuring timelines are met, customer satisfaction is maintained, and our internal teams are coordinated effectively.While you will not be coding or building agents (that is the role of the Solution Engineer), you will be the orchestrator—tracking progress, resolving issues, managing project scope, keeping communication lines open with customers, and escalating challenges internally as needed. Your efforts will directly contribute to the timely launch of projects and the retention of customers.

Join Synthflow AI, a pioneering enterprise AI agent platform that revolutionizes customer operations across voice, chat, and messaging. Our advanced agents efficiently handle routine interactions at scale, empowering teams to concentrate on high-value tasks.Successfully automated over 20 million hours of operations.Achieved 60% more calls answered compared to traditional operators.Handled 150 million interactions with an impressive 99.99% uptime.Supported by esteemed investors such as Accel, Atlantic Labs, and Singular, we are trusted by over 1,000 customers and recognized as one of Germany's most promising companies.We are seeking a talented Content Marketing Manager to spearhead and implement our content strategy. This role involves crafting compelling materials that resonate with enterprise buyers, bolster sales efforts, and elevate our brand presence.In this hands-on position, you will develop thought leadership content, create enterprise-focused collateral, manage our LinkedIn presence, and collaborate with executives to enhance their online visibility. Ideal candidates are sharp writers and editors who thrive in a dynamic, cross-functional environment.Your Responsibilities:Thought Leadership & Enterprise Content Creation: Produce white papers, case studies, and research-driven reports that position Synthflow as a market leader. Develop sales materials such as one-pagers and pitch decks to support enterprise negotiations.LinkedIn Management & Executive Positioning: Oversee content for our LinkedIn company page and collaborate with leadership to craft posts that establish their credibility as AI thought leaders.Content Oversight: Manage and edit contributions from writers and influencers to ensure clarity and consistency across all communication channels.Partner Content Collaboration: Develop channel partner content in close cooperation with the partnerships team.Qualifications:3-5 years of experience in content marketing.Demonstrated ability to produce high-quality white papers, case studies, and long-form content.Experience creating engaging content for LinkedIn.Exceptional writing and editing skills.Proficient use of AI tools.Strong collaborative skills and the ability to work cross-functionally.

About UsAt Perk, formerly known as TravelPerk, we are revolutionizing the way businesses handle travel and spend management. Our intelligent platform is designed to eliminate tedious manual tasks that hinder productivity, automating everything from travel bookings to expense management and invoice processing. By addressing the significant issue of shadow work, we aim to restore lost hours, enhance workplace morale, and ignite innovation.With over 10,000 companies, including industry leaders like Wise, On Running, Breitling, and Fabletics, relying on us, we are tackling the staggering $1.7 trillion problem of lost productivity in the workplace. Founded in 2015, Perk has expanded to a vibrant team of over 1,800 professionals across 12 global offices, with our headquarters situated in London and Boston. Our mission is to integrate innovation, control, and simplicity, transforming the work experience for businesses and their employees.Our core values emphasize ownership, delivering exceptional experiences, and working collaboratively as one unified team. We believe in fostering curiosity and a meaningful mindset to unlock your full potential. Our talent team comprises top minds from both the travel and SaaS sectors, representing more than 70 countries. If you are passionate about making a tangible impact and shaping how millions experience work, we invite you to join our team.To explore more about us, visit www.perk.com.

At Upvest, we are dedicated to our mission of simplifying the investment process to match the ease of daily spending. Our platform empowers businesses to provide a diverse array of investment products and an unparalleled experience in capital market investments and retirement planning. With our user-friendly Investment API, fintech companies and financial institutions can seamlessly integrate solutions, allowing them to concentrate on their primary operations.We are proud to collaborate with leading fintechs and financial institutions in Europe, including DKB, Revolut, N26, and Raisin. Established in 2017 by Martin Kassing, Upvest is comprised of over 270 skilled professionals from more than 70 nationalities. We are supported by prestigious investors including Hedosophia, Sapphire, Bessemer Venture Partners, BlackRock, Earlybird, HV Capital, Notion Capital, and Motive Ventures.

peec is building and improving the backend systems that support its products. As a Senior Python Engineer based in Berlin, this position centers on designing, developing, and maintaining complex backend infrastructure to ensure reliable and high-quality delivery. Role overview This role involves full ownership of backend systems, from initial planning and architecture through to implementation and deployment. The work spans API design, distributed systems, and ongoing performance improvements. What you will do Lead the end-to-end development of backend systems, including scoping, architecture, execution, and delivery. Design and implement scalable APIs and distributed systems that meet high performance standards. Work closely with Product, Frontend, and Design teams to translate product ideas into solid backend solutions. Explore and apply modern backend technologies to improve architecture and the developer experience. Help evolve backend architecture and infrastructure to support fast iteration and growth. Identify areas for system and developer experience improvement, and drive initiatives to address them. Requirements Significant experience with Python and backend development is essential. Strong skills in API design, distributed systems, and collaborating across teams will be important for success in this role.

Cresta is dedicated to transforming every customer interaction into a strategic advantage by harnessing the full potential of contact centers. Our innovative platform merges cutting-edge AI with human expertise, enabling contact centers to uncover valuable customer insights, streamline conversations and processes, and empower team members to operate more efficiently. Founded by Sebastian Thrun, a visionary from the Stanford AI lab and the mastermind behind Google X, Waymo, and Udacity, our leadership team includes CEO Ping Wu, co-founder of Google Contact Center AI, alongside Tim Shi, an early member of OpenAI. We have gathered a stellar team of AI and machine learning specialists, market leaders, and esteemed investors such as Andreessen Horowitz, Greylock Partners, and Sequoia, along with former AT&T CEO John Donovan. Our esteemed clientele features renowned brands like Intuit, Cox Communications, Hilton, and Carmax, and we have been honored by Forbes and Bain Consulting as one of the premier private AI companies globally. Embark on an exhilarating journey with us as we revolutionize the contact center workforce through AI. The future of work is here, and it begins at Cresta!

Role overview Taktile creates technology that enables banks and fintechs to automate critical decisions, such as credit and risk assessments, in real time. As a Senior Backend Engineer on Team Atlas, the main focus is on developing and maintaining the data infrastructure that powers Taktile’s feature computation platform. This position holds responsibility for the full lifecycle of core backend systems, from initial design through deployment, and plays a key role in shaping the direction of the product. What you will do Design, build, and maintain backend services using Python on AWS, including Lambda functions, DynamoDB, Aurora, and event-driven pipelines that support live production workloads. AI tools are part of the regular workflow. Address complex technical challenges related to latency, reliability, and scalability in backend systems. Take ownership of systems end to end: architecture, implementation, deployment, monitoring, and incident response are all part of the role. Influence architectural decisions and help determine how systems are built, not just what gets built. Contribute to team growth by conducting code reviews, mentoring peers, and improving development tools and processes. Collaborate closely with Product and Design teams to help define new features and guide product direction. Location This role is based at Taktile’s office in Berlin.

Role Overview enpal is hiring a Director of Software Engineering in Berlin. This leadership role guides the engineering team as they build new software products. The position shapes technical direction, manages project delivery, and maintains a focus on quality that serves customer needs.

About UsPerk (formerly TravelPerk) is a cutting-edge platform for travel and expense management, designed to eliminate cumbersome manual tasks that hinder productivity. Our innovative tools automate processes ranging from travel bookings to expense reporting and invoice management, allowing businesses to focus on what truly matters.With over 10,000 clients globally, including renowned brands like Wise, On Running, Breitling, and Fabletics, we are addressing the staggering $1.7 trillion issue of lost productivity, with each employee wasting an average of 7 hours each week on shadow work.Established in 2015, Perk has grown to a vibrant team of over 1,800 professionals across 12 international offices, with headquarters located in London and Boston. Our mission is to transform workplace dynamics through simplicity, innovation, and control.We are committed to our core values of ownership, delivering exceptional experiences, and teamwork. At Perk, we believe in nurturing curiosity, purpose, and the right mindset to unlock potential. Our diverse talent pool comprises leading experts from the travel and SaaS sectors, representing more than 70 countries. If you are driven to make a significant impact and enhance how millions experience work, consider joining us.Visit www.perk.com to discover more.