Senior Staff Engineer

About us

Join 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 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 tasks

Technical Strategy & Architecture

Define and evolve the long-term technical vision for backend services, platform capabilities, and cloud architecture

Lead cross-domain architectural initiatives spanning multiple teams and business areas

Drive modernization efforts that improve scalability, reliability, security, and developer productivity

Establish architectural principles, engineering standards, and technical governance practices

Guide major technology decisions including service boundaries, runtime choices, deployment models, and platform investments

Evaluate emerging technologies and determine where they create meaningful business value

AWS & Platform Leadership

Act as a senior authority on AWS architecture, operational excellence, and cloud-native system design

Define best practices for AWS services including Lambda, ECS/Fargate, API Gateway, EventBridge, SQS, SNS, DynamoDB, RDS, CloudFront, and related platform services

Drive improvements in cloud security, resilience, disaster recovery, observability, and compliance readiness

Lead cloud cost optimization initiatives and establish sustainable operational practices

Influence Infrastructure-as-Code, deployment automation, and platform engineering strategy

Partner closely with infrastructure and security teams to evolve our platform capabilities

Engineering Excellence

Raise engineering quality through architectural reviews, design guidance, and technical mentorship

Improve system observability, incident response, operational readiness, and reliability engineering practices

Reduce organizational complexity through standardization, reusable platform capabilities, and stronger engineering defaults

Drive pragmatic decision-making around technical debt, modernization, and platform investments

Establish frameworks for measuring and improving engineering effectiveness

Cross-Functional Impact

Partner with product, design, data, frontend, and infrastructure teams to align technical strategy with business goals

Help teams make better technical decisions through coaching, reviews, and architectural consultation

Improve end-to-end developer experience through shared tooling, contracts, APIs, and platform capabilities

Act as a trusted advisor to engineering leadership on technical risk, roadmap planning, and organizational scaling

Full-Stack Perspective

Contribute to frontend and full-stack architecture discussions where needed

Help establish patterns for frontend-backend integration, shared contracts, performance, and reliability

Occasionally contribute hands-on across the stack to unblock critical initiatives or validate architectural approaches

Drive improvements to end-to-end customer experience, not just backend systems

AWS & Cloud Expertise

Deep expertise designing, building, and operating production systems on AWS at scale and services like

Lambda

API Gateway

EventBridge

SQS / SNS

ECS / Fargate

DynamoDB

RDS

IAM

CloudWatch

CloudFront

Route53

VPC networking

Strong hands-on experience with serverless architectures, event-driven systems, and modern cloud-native platforms

Strong understanding of cloud security, compliance, resilience, disaster recovery, and cost optimization

Experience defining cloud architecture standards and governance practices

Backend & Distributed Systems

Expert-level TypeScript experience in backend and service-oriented environments

Deep understanding of distributed systems, scalability patterns, fault tolerance, and operational trade-offs

Experience evolving complex production environments with significant business impact

Strong understanding of API design, asynchronous architectures, and integration patterns

Experience with SQL and NoSQL data stores at scale

Platform & Delivery

Strong Infrastructure-as-Code experience (CDK, Terraform, or equivalent)

Experience building internal platforms, developer tooling, and shared engineering capabilities

Deep understanding of CI/CD, release engineering, and operational automation

Experience balancing reliability, security, performance, and delivery speed

Frontend Experience

Comfortable working within modern TypeScript, React and React Native frontend applications

Experience collaborating closely with frontend engineers on architecture and system design

Ability to debug and optimize end-to-end flows across browser, APIs, services, and data layers

Familiarity with modern frontend frameworks and frontend operational concerns

Able to contribute meaningful code when required, while remaining primarily backend-focused

Requirements

7+ years of engineering experience

Deep AWS expertise across serverless, cloud-native, and distributed systems

Proven success leading organization-wide technical initiatives

Strong TypeScript and backend architecture experience

Experience with Infrastructure-as-Code, CI/CD, and platform engineering

Ability to contribute across the stack, including frontend collaboration and debugging

Strong communication and leadership skills with a track record of influencing at scale

If you enjoy shaping engineering organizations, modernizing platforms, and solving complex technical challenges with lasting impact—we'd love to talk.

What we offer

As part of the bonify team, you'll have:

The opportunity to take ownership from day one

The chance to thrive in a dynamic and flexible startup environment.

Access to extensive coaching and training programs through our personal development budget

30 vacation days

Mental health support platform

Subsidies for BVG and UrbanSportsClub

1:1 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!

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