About usJoin bonify, Germany’s leading platform for credit scoring and financial management. We are on the mission to revolutionize the FinTech industry and make the credit score and financial data available and transparent for our users. We are seeking a talented Senior Staff Engineer to join our dynamic team in Berlin.We're hiring a Berlin-based Senior Staff Engineer to shape the future of our AWS-based platform and provide technical leadership across the engineering organization.This role goes beyond backend development. You'll drive architecture, platform strategy, cloud evolution, and engineering standards with an end-to-end mindset. We expect strong partnership across the stack and departments to deliver high-quality, reliable outcomes.You will act as a force multiplier across teams, setting technical direction while staying hands-on where leverage is highest.Your tasksTechnical Strategy & ArchitectureDefine and evolve the long-term technical vision for backend services, platform capabilities, and cloud architectureLead cross-domain architectural initiatives spanning multiple teams and business areasDrive modernization efforts that improve scalability, reliability, security, and developer productivityEstablish architectural principles, engineering standards, and technical governance practicesGuide major technology decisions including service boundaries, runtime choices, deployment models, and platform investmentsEvaluate emerging technologies and determine where they create meaningful business valueAWS & Platform LeadershipAct as a senior authority on AWS architecture, operational excellence, and cloud-native system designDefine best practices for AWS services including Lambda, ECS/Fargate, API Gateway, EventBridge, SQS, SNS, DynamoDB, RDS, CloudFront, and related platform servicesDrive improvements in cloud security, resilience, disaster recovery, observability, and compliance readinessLead cloud cost optimization initiatives and establish sustainable operational practicesInfluence Infrastructure-as-Code, deployment automation, and platform engineering strategyPartner closely with infrastructure and security teams to evolve our platform capabilitiesEngineering ExcellenceRaise engineering quality through architectural reviews, design guidance, and technical mentorshipImprove system observability, incident response, operational readiness, and reliability engineering practicesReduce organizational complexity through standardization, reusable platform capabilities, and stronger engineering defaultsDrive pragmatic decision-making around technical debt, modernization, and platform investmentsEstablish frameworks for measuring and improving engineering effectivenessCross-Functional ImpactPartner with product, design, data, frontend, and infrastructure teams to align technical strategy with business goalsHelp teams make better technical decisions through coaching, reviews, and architectural consultationImprove end-to-end developer experience through shared tooling, contracts, APIs, and platform capabilitiesAct as a trusted advisor to engineering leadership on technical risk, roadmap planning, and organizational scalingFull-Stack PerspectiveContribute to frontend and full-stack architecture discussions where neededHelp establish patterns for frontend-backend integration, shared contracts, performance, and reliabilityOccasionally contribute hands-on across the stack to unblock critical initiatives or validate architectural approachesDrive improvements to end-to-end customer experience, not just backend systemsAWS & Cloud ExpertiseDeep expertise designing, building, and operating production systems on AWS at scale and services likeLambdaAPI GatewayEventBridgeSQS / SNSECS / FargateDynamoDBRDSIAMCloudWatchCloudFrontRoute53VPC networkingStrong hands-on experience with serverless architectures, event-driven systems, and modern cloud-native platformsStrong understanding of cloud security, compliance, resilience, disaster recovery, and cost optimizationExperience defining cloud architecture standards and governance practicesBackend & Distributed SystemsExpert-level TypeScript experience in backend and service-oriented environmentsDeep understanding of distributed systems, scalability patterns, fault tolerance, and operational trade-offsExperience evolving complex production environments with significant business impactStrong understanding of API design, asynchronous architectures, and integration patternsExperience with SQL and NoSQL data stores at scalePlatform & DeliveryStrong Infrastructure-as-Code experience (CDK, Terraform, or equivalent)Experience building internal platforms, developer tooling, and shared engineering capabilitiesDeep understanding of CI/CD, release engineering, and operational automationExperience balancing reliability, security, performance, and delivery speedFrontend ExperienceComfortable working within modern TypeScript, React and React Native frontend applicationsExperience collaborating closely with frontend engineers on architecture and system designAbility to debug and optimize end-to-end flows across browser, APIs, services, and data layersFamiliarity with modern frontend frameworks and frontend operational concernsAble to contribute meaningful code when required, while remaining primarily backend-focusedRequirementsBerlin-based7+ years of engineering experienceDeep AWS expertise across serverless, cloud-native, and distributed systemsProven success leading organization-wide technical initiativesStrong TypeScript and backend architecture experienceExperience with Infrastructure-as-Code, CI/CD, and platform engineeringAbility to contribute across the stack, including frontend collaboration and debuggingStrong communication and leadership skills with a track record of influencing at scaleIf you enjoy shaping engineering organizations, modernizing platforms, and solving complex technical challenges with lasting impact—we'd love to talk.What we offerAs part of the bonify team, you'll have:The opportunity to take ownership from day oneThe chance to thrive in a dynamic and flexible startup environment.Access to extensive coaching and training programs through our personal development budget30 vacation daysMental health support platformSubsidies for BVG and UrbanSportsClub1:1 language classes in both German and English.The Company is committed to the principle that no employee or job applicant shall receive unfavourable treatment on grounds of age, disability, gender reassignment, race, religion or belief, sex, sexual orientation, marriage or civil partnership, pregnancy, and maternity.Please note, to be compliant with AML requirements, due to the specifics of fintech industries additional background checks are required (applicable only at the offer stage).If you're ready to make a meaningful impact in the world of FinTech and embark on an exciting career journey, apply now to join bonify!