Staff App Engineer Job at About You (Hamburg or Berlin)

Staff Engineer, Site Reliability

LearnUpon is looking for a Staff Site Reliability Engineer to join our team in I...

Location

Ireland , Dublin

Salary:

Not provided

LearnUpon

Expiration Date

Until further notice

Requirements

7+ years of experience in a software or Ops role
5+ years of cloud engineering experience, with at least 2 years experience with AWS
Experience deploying Microservice environments, using containerisation technologies such as Kubernetes and Docker
Experience in designing and implementing Observability tech stacks
Have championed the benefits of Observability to Engineering teams
Can architect the design of SLO/SLI implementation that balances the needs of different teams
Familiar with cost analysis of Observability metrics gathering, Engineering effort, and tooling
Experience building and supporting large-scale distributed systems that back a consumer app or website with associated requirements of performance, security and disaster recovery
Experience with implementing IaaC (e.g. CloudFormation, Terraform etc.), automation tooling (e.g. Puppet, Ansible etc.), CI/CD (e.g. Jenkins, Travis CI, GitLab etc.)
Able to effectively communicate technical ideas to and collaborate with both technical and non-technical peers

Job Responsibility

Identifying opportunities to improve and scale our infrastructure for performance, observability, maintainability, and cost, by creating innovative solutions
Leading our efforts to build an observability function that incorporates application metrics, application transaction tracking, and event log management
Driving the processes to maintain resilient, scalable and cost-effective infrastructure
Working with other Engineering teams to provide infrastructure solutions that meet their ongoing requirements
Building tools focused on measuring, monitoring and alerting, with an eye towards self-service in order to promote Engineers’ ownership of observability
Reacting quickly to changing customer and business needs
Participate in on-call rota
Mentoring junior talent

What we offer

Work in a fun and supportive environment with regular team events
Excellent career progression
Structured learning environment
Competitive salary and company ESOP
Private health insurance
26 days annual leave

Fulltime

Staff iOS Engineer

OpenSea is the gateway to web3’s next chapter—where NFTs, fungible tokens, and e...

Location

United States

Salary:

180000.00 - 270000.00 USD / Year

OpenSea

Expiration Date

Until further notice

Requirements

Deep expertise in Swift and SwiftUI
Solid understanding of MVVM architecture and modern iOS frameworks
Experience working with Kotlin Multiplatform Mobile (KMP)
Solid understanding of developing API-driven mobile apps across REST & GraphQL
Strong systems engineering skills and a generalist mindset
Hands-on experience with real-time data updates and complex UI interactions
Proven track record of adopting and leveraging AI tools
Comfortable working in a fast-paced, collaborative environment
Prior experience in fintech or crypto-related products preferred
High ownership mentality

Job Responsibility

Take a major role in the design & development of the OpenSea iOS app
Collaborate closely with product, design, and engineering teams
Take ownership of features from conception through deployment
Contribute to the architecture and evolution of the mobile codebase
Integrate with GraphQL APIs and implement real-time data updates
Advocate for and adopt AI-assisted development tools
Help shape the future direction of OpenSea's mobile platform

What we offer

Health Benefits: We cover 100% Dental/Vision/Medical for employees and 90% for dependents
Flexible Time Off Policy
Parental Leave: 16 Weeks of Paid Parental Bonding & up to 8 additional weeks for the birthing parent
Mental Health: We offer access to Spring Health, covering 8 therapy & 8 coaching sessions per year
11 Company Holidays
Fidelity 401K Plan
Internet/Mobile Reimbursement Plan
Reimbursement or Monthly Snack Delivery
Company & Team retreats
Team Member Co-Working and Gathering Expense

Fulltime

Staff Android Engineer

OpenSea is the gateway to web3’s next chapter—where NFTs, fungible tokens, and e...

Location

United States

Salary:

180000.00 - 270000.00 USD / Year

OpenSea

Expiration Date

Until further notice

Requirements

Expert-level proficiency in modern Android development practices
Experience with Kotlin Multiplatform and Jetpack Compose is a significant plus, though not a strict requirement
Solid understanding of GraphQL and Apollo for networking within mobile applications
Demonstrated ability to build and maintain high-quality, performant, and scalable Android apps from scratch
Hands-on experience with real-time data updates and complex UI interactions
Proven track record of adopting and leveraging AI tools to accelerate development productivity
Comfortable working in a fast-paced, collaborative environment with a focus on shipping polished features
Prior experience in fintech or crypto-related products preferred
High ownership mentality

Job Responsibility

Develop and maintain high-quality, performant Android applications from the ground up using modern Kotlin and Jetpack Compose
Collaborate closely with product, design, and engineering teams to build seamless, user-friendly mobile experiences
Take ownership of features from conception through deployment
Contribute to the architecture and evolution of the mobile codebase, including Kotlin Multiplatform components where applicable
Integrate with GraphQL APIs and implement real-time data updates to deliver dynamic and responsive user interfaces
Advocate for and adopt AI-assisted development tools to accelerate productivity and improve code quality
Participate in code reviews, mentoring, and knowledge sharing to elevate the overall mobile engineering practice
Help shape the future direction of OpenSea's mobile platform by providing technical leadership and innovative solutions

What we offer

Health Benefits: We cover 100% Dental/Vision/Medical for employees and 90% for dependents
Flexible Time Off Policy
Parental Leave: 16 Weeks of Paid Parental Bonding & up to 8 additional weeks for the birthing parent
Mental Health: We offer access to Spring Health, covering 8 therapy & 8 coaching sessions per year
11 Company Holidays
Fidelity 401K Plan
Internet/Mobile Reimbursement Plan
Reimbursement or Monthly Snack Delivery
Company & Team retreats to get together for fun and collaboration
Team Member Co-Working and Gathering Expense

Fulltime

Staff AI/ML Engineer

At Sigma, we’re not just adding AI—we’re building the future of how people work ...

Location

United States , New York City

Salary:

240000.00 - 270000.00 USD / Year

Sigma Computing

Expiration Date

Until further notice

Requirements

10+ years of experience building and deploying production-grade AI/ML systems
Deep knowledge of machine learning, deep learning, and applied AI
Experience across the full ML lifecycle: data curation, training, deployment, monitoring
A track record of building things that ship—whether it’s recommendations, search, machine translation, or something equally complex
Experience adapting or training foundation models (language or multimodal) for novel domains

Job Responsibility

Partner with product, design, and engineering teams to identify high-impact AI/ML opportunities
Prototype and productionize AI systems that feel intuitive but do a lot under the hood—recommendations, natural language interfaces, agentic workflows, and more
Develop and scale AI/ML infrastructure that powers both internal tooling and customer-facing features
Tackle novel UX problems at the intersection of AI, BI, and apps

What we offer

Equity
Generous health benefits
Flexible time off policy
Paid bonding time for all new parents
Traditional and Roth 401k
Commuter and FSA benefits
Lunch Program
Dog friendly office
Stock options

Fulltime

Staff AI/ML Engineer

At Sigma, we’re not just adding AI—we’re building the future of how people work ...

Location

United States , San Francisco

Salary:

240000.00 - 270000.00 USD / Year

Sigma Computing

Expiration Date

Until further notice

Requirements

10+ years of experience building and deploying production-grade AI/ML systems
Deep knowledge of machine learning, deep learning, and applied AI
Experience across the full ML lifecycle: data curation, training, deployment, monitoring
A track record of building things that ship—whether it’s recommendations, search, machine translation, or something equally complex
Experience adapting or training foundation models (language or multimodal) for novel domains

Job Responsibility

Partner with product, design, and engineering teams to identify high-impact AI/ML opportunities
Prototype and productionize AI systems that feel intuitive but do a lot under the hood—recommendations, natural language interfaces, agentic workflows, and more
Develop and scale AI/ML infrastructure that powers both internal tooling and customer-facing features
Tackle novel UX problems at the intersection of AI, BI, and apps

What we offer

Equity
Generous health benefits
Flexible time off policy
Paid bonding time for all new parents
Traditional and Roth 401k
Commuter and FSA benefits
Lunch Program
Dog friendly office
Stock options

Fulltime

Staff AI Developer Productivity Engineer

This is a staff-level, hands-on role at the intersection of Developer Productivi...

Location

United Kingdom , London OR Chester

Salary:

Not provided

Equals Group PLC

Expiration Date

Until further notice

Requirements

8+ years in software engineering with a track record of building internal developer tooling/DevEx (CLI/IDE plugins, bots, internal services or web apps)
Strong proficiency in TypeScript/Node.js, C#/.NET and front-end experience with React/Next.js
Hands-on LLM integration: prompting, tool/function calling, retrieval (embeddings/vector stores) and basic evaluation of quality
Solid understanding of CI/CD, test strategy and code-quality tooling
able to design fast inner loops and reliable pipelines
Product mindset: discovery interviews, hypothesis-driven experiments, before/after evaluation and clear business cases
Excellent communication and influence skills
comfortable enabling teams via docs, workshops and remote office hours
A role model for our values: Make it happen
Succeed together

Job Responsibility

AI-first discovery roadmap - Interview engineers, analyse telemetry and prioritise the highest-leverage opportunities across coding, review, testing, releases and knowledge flows. Set baselines and target deltas and maintain a transparent backlog/roadmap grounded in measurable outcomes
Ship internal tools - Build and maintain AI-augmented dev tools across IDE/CLI, GitHub, Slack, Notion, Retool and internal web apps that reduce manual effort and cycle time
Agentic flows across the SDLC - Design structured, agentic workflows (including MCP and tool-use with human-in-the-loop gates) to improve code authoring/review, test creation/selection and the release, incident response and onboarding processes
Frontier scouting & evaluation - Continuously experiment with cutting-edge AI models, frameworks and runtimes
run short, hypothesis-driven pilots with clear success criteria and developer-fit assessments
productionise successful approaches
Automation pipelines - Implement LLM-assisted and AST-based code-mod workflows for migrations, boilerplate generation, test creation and docs updates
Enablement & change management - Drive adoption with playbooks, golden prompts, demos, office hours and a champions network across build teams
measure usage and satisfaction and iterate

What we offer

25 days holiday per year + your birthday off
Opportunities for progression, development and learning new skills - £250 towards the cost of learning & development
Free onsite Nuffield Health gym & pool (London) and discounted gym membership elsewhere
GetActive with Aviva - Health and Wellbeing discounts on services and products
Interbank currency rates on travel money and international transfers
Bupa Private Healthcare
Free Eye Test and £50 up to the cost of glasses
EAP Service - Mental Health Services
Life Assurance Policy - x3 annual salary
Contributory pension scheme

Staff IT Automation Engineer

As a Staff IT Automation Engineer, you will be a technical leader responsible fo...

Location

United States , San Francisco

Salary:

205000.00 - 240000.00 USD / Year

Abridge

Expiration Date

Until further notice

Requirements

10 years of experience in IT Engineering, IT Apps Development or DevOps
At least 5 years dedicated to developing large-scale, enterprise environments where services were automated
Deep hands-on experience automating complex operations and governance across major enterprise platforms, including GCP, AWS, and/or Azure
Deep hands-on experience with MacOS and iOS
Highly proficient in at least one modern programming language, with a strong preference for Python for backend logic and automation scripting
Demonstrated experience automating core IT Service Management (ITSM) functions
Proven, deep experience working directly with a variety of technical interfaces, including robust utilization of APIs and querying and managing various databases
Extensive experience designing, deploying, and managing centralized automation platforms
Demonstrated ability to dissect complex, cross-functional business problems and translate them into simple, maintainable, and highly efficient code-based solutions
Be able to communicate effectively and build confidence across a wide variety of audiences

Job Responsibility

SaaS Ecosystem Automation: Lead the architectural design and implementation of automated workflows that provision, de-provision, and manage users and licenses across the organization's critical SaaS ecosystem
Workflow Automation: Develop scalable, resilient workflow automation solutions to streamline critical business processes
Asset Management Automation: Design and implement solutions for the automated lifecycle management of various endpoints and assets
API and Integration Development: Serve as the subject matter expert for integrating disparate systems by building robust, fault-tolerant connections using APIs and event-driven architectures
Identity and Access Management (IAM): Drive automation within the IAM infrastructure
Enterprise Data Engineering: Drive the architecture and engineering of robust data platforms for IT
Technical Leadership: Act as a force multiplier for the team, establishing engineering best practices, leading code reviews, documenting architectures, and mentoring other engineers

What we offer

Generous Time Off: 14 paid holidays, flexible PTO for salaried employees
Comprehensive Health Plans: Medical, Dental, and Vision coverage for all full-time employees and their families
Generous HSA Contribution
Paid Parental Leave
Family Forming Benefits
401(k) Matching
Personal Device Allowance
Pre-tax Benefits: Access to Flexible Spending Accounts (FSA) and Commuter Benefits
Lifestyle Wallet: Monthly contributions for fitness, professional development, coworking, and more
Mental Health Support

Fulltime

Staff Android Engineer

We're looking for early members of our Android team. You'll work closely with th...

Location

United States , Los Angeles; Boston; NYC; San Francisco

Salary:

200000.00 - 300000.00 USD / Year

Suno

Expiration Date

Until further notice

Requirements

7+ years experience shipping production Android apps
Advanced expertise in Kotlin
Advanced expertise in Jetpack Compose
Experience building fluid animations, with an eye for translating prototypes into robust code
A keen sense of what's unique about Android, and how that can be used in relation to a media application
An obsession with great user experiences, getting the details right, iterating & learning rapidly, and working hard

Job Responsibility

Design and build Suno's Android app for creating, exploring, and listening to music
Create foundational abstractions and libraries for performant, highly interactive media experiences
Own feature development from zero to one, and beyond
Contribute to design and product decisions across the app
Optimize the performance, joy, beauty, and feel of our products

What we offer

Company Equity Package
401(k) with 3% Employer Match & Roth 401(k)
Medical, Dental, & Vision Insurance (PPO w/ HSA & FSA options)
11 Paid Holidays + Unlimited PTO & Sick Time
16 Weeks of Paid Parental Leave
Creative Education Stipend
Generous Commuter Allowance
In-Office Lunch (5 days per week)

Fulltime

Staff App Engineer

About You

Location:
Germany , Hamburg or Berlin

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
December 14, 2025

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About You

Location:Germany , Hamburg or Berlin

Category:IT - Software Development

Contract Type:Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:December 14, 2025

Looking for more opportunities? Search for other job offers that match your skills and interests.

Similar Jobs for Staff App Engineer

Staff Engineer, Site Reliability

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Location:
Germany , Hamburg or Berlin

Category:
IT - Software Development

Contract Type:
Not provided

Job Posted:
December 14, 2025