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Project description: Our team develops and evolves infrastructure services that orchestrate large-scale analytic price and risk computations across a wide range of financial instruments. These calculations are distributed over thousands of computation engines, enabling both high-throughput End-of-Day batch processing and low-latency intraday streaming analytics. The core analytic engine is implemented in C++, while the surrounding orchestration services are written in Java (legacy) and Python.... (więcej)
- Building and optimizing services for pricing and risk calculation
- Designing, developing, and maintaining backend services in C++ and Python
- Participating in code reviews, discussing technical improvements, and sharing best practices
- Collaborating with developers across Poland, UK, and Canada
- Working with SQL Server, Linux, and Solace (Pub/Sub model)
- Using GitHub, Jira, and Jenkins for CI/CD and task management
- Good knowledge of C++
- Linux environment
- Python
- Git
- Familiar with RESTful applications
- Familiar with containerization and Kubernetes Nice to have:
- Fintech experience
- Strong software engineering or math background
- Microsoft SQL
- Use of AI agents for development (e.g. Microsoft Copilot)
Work Environment & Flexibility
- Top-quality equipment to support your work
- Flexible working hours
- Remote work option
- Exciting and challenging projects with international teams
Learning & Development
- English lessons with a native speaker
- Dedicated training budget for personal and professional growth
Health & Well-being
- Private medical insurance
- Multisport card
- Air-conditioned workspace
- Showers available at the office
Food & Comfort
- Lunches from Kraków’s top ...
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Role Overview We are looking for a Senior .NET Developer with strong experience in Angular and Microsoft Azure to join our development team. In this role, you will work in a full-stack capacity, building scalable applications and cloud-based solutions while applying modern software engineering practices. You will collaborate with cross-functional teams, contribute to architecture decisions, and ensure high standards of code quality, testing, and continuous delivery. Key Responsibilities Design,... (więcej)
- Design, develop, and maintain full-stack applications using .NET technologies and Angular.
- Apply object-oriented and functional programming principles to solve complex software engineering challenges.
- Write clean, maintainable, and well-tested code following recognized software design patterns and best practices.
- Develop and deploy solutions using Microsoft Azure services.
- Work in Agile development environments, contributing to sprint planning, reviews, and continuous improvement.
- ...
- 4 years of commercial experience with .NET technologies (C#, .NET / .NET Core, Entity Framework or other ORM, WCF).
- 3 years of experience with Angular (React experience combined with recent Angular experience is also acceptable).
- 2 years of experience with Microsoft Azure services, such as:
- Azure Functions
- Azure Logic Apps
- Azure Web Apps
- Azure SQL / SQL Server
- Experience working with web services and APIs (REST / SOAP).
- Good knowledge of software architecture and design ...
- Strong ability to write clean, readable, and maintainable code aligned with established coding standards.
- Solid understanding of software design patterns and architecture principles.
- Passion for continuous learning and exploring new technologies, particularly within the Azure ecosystem.
- Strong analytical and problem-solving skills.
- Ability to work effectively in a collaborative Agile environment.
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Kim jest H2B Group? Jesteśmy firmą konsultingową, która pomaga klientom w automatyzacji procesów biznesowych przy pomocy AI, a specjalistom IT rozwijać karierę w modelu B2B. Oferujemy projekty z branż takich jak fintech, medtech, edutech czy automatyka przemysłowa. Dzięki ścisłej współpracy wspieramy rozwój naszych klientów poprzez dostarczanie szybkich i mierzalnych efektów, jednocześnie zapewniając specjalistom IT możliwości rozwoju kariery i zdobywania cennego... (więcej)
- Full-stack development oraz DevOps dla strony i portali self-service
- Współpraca w zespole i aktywny udział w rozwoju produktu
- Wsparcie oraz mentoring mniej doświadczonych developerów
- Doświadczenie jako Full-Stack Developer
- Swobodna praca w języku angielskim
- Samodzielność, nastawienie na rozwiązywanie problemów i ciągły rozwój
- Znajomość technologii:
- React
- TypeScript
- Golang
- Node.js
- MariaDB
- Elasticsearch
- Docker
- Kubernetes
- AWS/GCP
- GitHub Actions
- Praktyczne wykorzystanie narzędzi AI w developmentcie (np. GitHub Copilot)
- Podejście do pracy z naciskiem na jakość kodu, testy jednostkowe, bezpieczeństwo i wydajność
Mile widziane
- ...
- Elastyczność – Wybierasz projekty dopasowane do swoich umiejętności i zainteresowań, z możliwością zmiany w ramach naszej firmy lub grupy Euvic, której jesteśmy częścią.
- Przejrzystość – Masz jasne zasady współpracy i pełną transparentność wynagrodzenia oraz warunków.
- Szybkość działania – Dzięki naszej efektywności szybko znajdziesz lub zmienisz projekt, który idealnie odpowiada Twoim kompetencjom.
- Możliwość rozwoju – Pracujesz przy innowacyjnych ...
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Tworzymy produkty z obszaru FinTech, HealthTech i AI (choć nie zamykamy się w sztywnych ramach). Pracujemy w modelach Team Augmentation oraz end-to-end, głównie dla klientów zagranicznych i sektora publicznego w Polsce. Nie opowiadamy historii o „innowacjach” ani „dynamicznym środowisku”. Interesuje nas konkret: kod, architektura i decyzje, które dowożą. Budujemy działające produkty, które przechodzą audyty, skalują się i realnie zdobywają rynek - nie kolejne slajdy ani... (więcej)
- Tworzenie produktów z obszaru FinTech, HealthTech i AI
- Praca w modelach Team Augmentation oraz end-to-end
- Budowanie działających produktów, które przechodzą audyty, skalują się i zdobywają rynek
Must Have
- Minimum 5 lat doświadczenia w pracy z .NET / C#
- Doświadczenie w budowie lub rozwoju systemów informatycznych klasy enterprise opartych o relacyjne bazy danych SQL (np. PostgreSQL)
- Doświadczenie pracy z REST API oraz SOAP, w tym integracji systemowych z wykorzystaniem WebServices i komunikatów XML
- Doświadczenie w budowie wielowarstwowych aplikacji webowych działających w środowisku IIS (IIS 8 / IIS 10)
- Doświadczenie w implementacji mechanizmów przetwarzania ...
- Współpraca w modelu B2B lub UoP
- Budżet szkoleniowy (do 2500 zł netto rocznie)
- Elastyczne godziny pracy i praca zdalna
- Multisport Plus i prywatna opieka medyczna
Pół etatu
About the project You will join a project to support the development of a family safety and wearable platform used by parents and children worldwide. The product ecosystem combines connected devices, mobile applications (iOS and Android), and cloud-based services to deliver reliable, real-time solutions at scale. The engineering team operates in a product-driven environment and plays a central role in shaping both mobile architecture and broader platform decisions. The project focuses on... (więcej)
- Developing mobile applications according to provided requirements
- Participating in defining requirements and estimations
- Designing mobile cross-platform apps architecture
- Participating in code reviews
- Mentoring less experienced developers
- Cooperating with project managers, developers, testers, and customers to increase application quality
- Supporting sales team with tech advisory
Must have:
- Min. 3 years of experience working with React Native mobile apps (2 years, if proceeded with web experience)
- Expert knowledge of JS and TS
- Expert knowledge of React and React Native
- Proficiency in flexbox model and styling
- Familiarity with XCode and Android Studio
- Good understanding of iOS & Android apps build process
- Ability to design architecture of mobile apps
- Advanced debugging skills
- Understanding of REST API and GraphQL
- Familiarity with Agile software ...
- Ambitious, creative, talented & highly experienced team contributing to projects for clients all over the world
- Flexible working hours and a possibility to work remotely
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About Us We build B2B legal technology that helps law firms and fund managers work faster and produce high-quality results. Our product helps manage the legal processes used when raising private investment funds. It makes drafting, negotiation, and compliance work easier and faster for lawyers. We use a single-tenant SaaS system hosted on AWS in several regions. Our technology stack includes Python/Django 4.2, React 18 with TypeScript, PostgreSQL, Redis, Elasticsearch/OpenSearch, S3, ECS, and... (więcej)
- Design and build RESTful APIs using Python 3.10 and Django 4.x / Django REST Framework.
- Create scalable data models and efficient queries using PostgreSQL, Redis, and Elasticsearch/OpenSearch.
- Build background jobs and asynchronous tasks using Celery, SQS, and Lambda.
- Integrate AWS services such as S3, SNS/SQS, CloudFront, ECS, and RDS into application workflows.
- Take part in code reviews and maintain clean, secure, and well-documented services.
- Work with DevOps to improve CI/CD ...
Essential Requirements
- Experience working as a Back-End or Full-Stack Developer in a SaaS environment.
- Strong knowledge of Python 3.10 and Django 4.x / Django REST Framework.
- Experience with PostgreSQL, Redis, and/or Elasticsearch/OpenSearch.
- Familiarity with Celery, SQS/SNS, and AWS services such as ECS, Lambda, S3, and RDS.
- Experience with Git, CI/CD processes, and Agile/Scrum development.
- Strong debugging and problem-solving skills with attention to performance and ...
- Competitive salary and benefits.
- Remote-first work culture with colleagues from different countries.
- Opportunity to shape the back-end architecture and services of our global legal-tech product.
- Experience working with complex enterprise workflows and automation challenges.
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Salary: 1100 - 1300 PLN/day on B2B Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office) Why choose this offer? You can expect a flexible work organization The international work environment will give you the opportunity to interact with the English language on a daily basis Scandinavian organizational culture will provide you with work-life balance, you will gain time for additional training (financed by Jit) The Jit community will bring you a nice time... (więcej)
- Design, develop, and maintain data processing pipelines using Hadoop and Spark ecosystems
- Implement and optimize ETL (Extract, Transform, Load) processes for large volumes of financial data
- Collaborate with analysts, data scientists, and other developers to deliver high-quality, production-ready data solutions
- Ensure data integrity, accuracy, and security across distributed data systems
- Participate in code reviews, contribute to continuous integration and deployment (CI/CD), and ...
- Strong programming experience in Scala (min. 3 years)
- Proven hands-on experience with Apache Spark for batch and distributed data processing
- Solid understanding of Hadoop ecosystem components (YARN, Sqoop, Hive, Oozie, Impala, MapReduce)
- Experience with Linux Shell scripting and automation
- Proficiency in SQL and working with large, complex datasets
- Knowledge of version control and CI/CD tools (Git, Jenkins, Bamboo, Ansible, etc.)
- Good understanding of data modeling, performance ...
- Salary: 1100 - 1300 PLN/day on B2B
- Work model: hybrid from Gdynia / Gdańsk / Warszawa / Łódź (3 days per week from the office)
- Flexible work organization
- International work environment with daily English language interaction
- Scandinavian organizational culture promoting work-life balance
- Time for additional training (financed by Jit)
- Regular integration meetings within the Jit community
- Opportunity to work on a financial project focused on building and optimizing large-scale ...
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As a Senior Frontend Engineer for Aristocrat ALABs, you will be part of the Franchise Tools team that supports our suite of tools that support our flagship Big Fish Casino and Jackpot Magic Slots. The successful applicant will be a person with deep experience, highly motivated, and a technical leader with a passion for UI/UX development. You have the experience to innovate and shape the future of our platforms. You will need to be motivated and energized to solve complex problems. Your knowledge... (więcej)
- Maintain our current suite of tools while also building out new features in collaboration with our LiveOps, Customer Support, and QA teams.
- Perform unit tests and integration tests, and debug existing and new features.
- Participate in code reviews.
- Participate in daily Agile scrum meetings.
- Participate in documenting the new features.
- Collaborate across all of our internal teams.
- Understanding of client-server architecture.
- Demonstrable experience working with frontend frameworks like React or Angular, but comfortable with writing code at the DOM level (jQuery).
- Solid understanding of interacting with and making modifications to REST APIs.
- Have a product/UX mentality where you think about architecture and how to best support users.
- Good understanding of design patterns and design principles.
- Ability to design and build flexible and reusable UI components.
- ...
- 20/26 days of paid annual leave.
- Private health insurance.
- Life insurance.
- Med Card: discounts on prescription medicines.
- Lunch card – 200 PLN monthly.
- Wellness card – 270 PLN monthly.
- Refund for glasses.
- 1,000 PLN bonus for taking at least two consecutive weeks of annual leave.
- Additional special leave days, including wellbeing days and “calendar gap” days.
- Birthday leave – enjoy an extra day off on your special day.
- Christmas break – office closed between ...
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Altimi is a technology acceleration partner with impressive experience spanning over 20 years, specializing in the successful delivery of software development projects for international customers. We are based in Poland. Our main area of operation is the DACH region and Scandinavia, where we are known for providing top-notch software development services. Our primary focus are managed services for companies seeking to accelerate growth, solve complex tech problems, build MVP/POC and/or modify... (więcej)
- Build intuitive, high-performance interfaces for online booking, calendar views, resource allocation panels, and availability management.
- Develop complex UI interactions for multilocation, multitimezone, and multiresource scheduling scenarios.
- Create user-facing components powering automation workflows (reminders, rescheduling logic, recurring visits, waiting lists).
- Work closely with backend engineers to integrate GraphQL APIs and ensure efficient data loading and client-side ...
- 7 years of professional experience in frontend development.
- Strong expertise in React.js, JavaScript/TypeScript, and modern frontend patterns.
- Experience working with GraphQL and familiarity with Node.js-based environments.
- Solid understanding of performance optimization and scalable UI architecture.
- Excellent communication skills with C1 English.
- Confident, proactive attitude - comfortable debating product ideas and providing strong, informed opinions.
- Join for a role, stay for the development: More than 40% of our team is working with us longer than 5 years.
- Explore diverse domains, projects, and modern technologies through internal mobility.
- Learn from the best: Almost 60% of all our colleagues have over 10 years of professional experience.
- Flexibility: Work fully remotely, full-time from our office in Wroclaw, or in a hybrid model.
- Practical benefits: private medical care, life insurance, sport card, English and German classes in ...
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Summary: The Senior .Net API Developer role focuses on developing and maintaining the Nordic commercial integration layer, enhancing secure and scalable integrations within the Auto and Consumer Finance space. The primary goal is to lead initiatives in backend API development while maintaining high standards of quality and technical stability. What we offer: Remote Role B2B Contract Big International project Rate: 160-180 zł/day VAT Responsibilities: Design and implement new external partner... (więcej)
- Design and implement new external partner REST APIs
- Lead backend development initiatives from idea to production
- Translate complex business requirements into scalable technical solutions
- Contribute to architectural decisions in collaboration with the Architect
- Maintain and enhance existing integration services
- Improve performance, scalability, and reliability
- Produce and maintain technical documentation
- Ensure adherence to architectural guidelines and security standards
- ...
- Senior-level backend development experience
- Proven ability to lead development of new applications and APIs
- Strong architectural understanding and design capabilities
- Experience with .NET / .NET Core
- Hands-on knowledge of RESTful services and OAuth
- Technical expertise in Azure and Azure DevOps
- Remote Role
- B2B Contract
- Big International project
- Rate: 160-180 zł/day VAT
Nice to Have
- Experience with Application Insights
- Knowledge of PowerShell
- Familiarity with Azure API Management
- Understanding of SQL/NoSQL databases
- Experience with AKS and SOLID principles
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We are looking for a Senior Linux Kernel Developer with strong, hands on experience in Linux Kernel development and low level debugging. This role focuses on real Kernel engineering, analyzing and triaging issues, developing and validating patches, performing root cause analysis of crashes and memory corruption, and working directly within Kernel subsystems. ✅ Your responsibilities: Analyze and triage Linux Kernel vulnerabilities (validity, impact, complexity). Develop and validate Kernel... (więcej)
- Analyze and triage Linux Kernel vulnerabilities (validity, impact, complexity).
- Develop and validate Kernel patches within defined Time-to-Patch SLAs.
- Perform root cause analysis of Kernel crashes, deadlocks, and memory corruption issues.
- Use Kernel debugging tools (e.g., crash, GDB, ftrace, perf, sanitizers) to diagnose low-level problems.
- Review and validate AI-generated Kernel patches, providing structured technical annotations.
- Ensure fixes prevent regressions and meet CI/CD ...
- 5-7 years of hands-on experience in Linux Kernel development or low-level systems engineering.
- Strong C programming skills with practical debugging and memory analysis experience.
- Proven experience debugging Kernel crashes, deadlocks, race conditions, and memory corruption.
- Solid understanding of Linux Kernel internals and subsystem architecture.
- Hands-on experience with Kernel debugging tools (crash, ftrace, perf, sanitizers, GDB).
- Experience contributing Kernel patches (knowledge ...
- Strong influence on architecture and technology decisions.
- Collaboration with an experienced Data & AI team in an international environment.
- Flexible and remote-friendly working mode.
- Health and wellbeing benefits.
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Hi, nice you are here! Embrace change with Efigence! We are a technology company established in 1995, where people are a priority. A team of over 150 technology enthusiasts allowed us to implement hundreds of projects in the banking, insurance, e-commerce and other sectors. Many of them have gained recognition by winning awards in prestigious competitions. We are seeking a highly skilled Senior Front-End Developer to join our team and contribute to cutting-edge solutions within the digital... (więcej)
- Designing and implementing front-end solutions for banking applications (mobile and web) using React JS and/or Angular JS (any additional knowledge of technologies like Vue.JS or PHP as an additional asset)
- Developing web applications based on Magnolia CMS and other modern technologies
- Collaborating with the backend team on creating REST APIs and microservices
- Participating in the development and optimization of existing services and features
- 6 years of professional experience
- Experience with Headless CMS like Magnolia
- Ability to create responsive interfaces
- Experience building applications with React and/or Angular (2 JavaScript ES6)
- Knowledge of web technologies (HTML, HTML5, CSS, CSS3, SCSS, SEO, JavaScript/TypeScript) and knowledge of GIT
- Teamwork skills and good communication
- Proficiency in English at a strongly conversational level (C1)
- Career & Development – Trainings, workshops, and collaboration with top industry experts
- Exciting Challenges – Work with leading financial market brands and award-winning projects
- Supportive Team – Knowledge sharing during Wednesday Wisdom meetings & tech breakfasts
- Autonomy & Innovation – We welcome your ideas and initiatives
- Stable Collaboration – Clear, transparent B2B agreements in line with current regulations, ensuring mutual trust and predictability
- Work-Life Balance...
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Senior Full Stack Developer (Ruby on Rails / React) (Osoba na stanowisku Full Stack Developera) Poszukujemy Senior Full Stack Developera, który chce mieć realny wpływ na architekturę, jakość kodu oraz kierunek rozwoju aplikacji tworzonych w Ruby on Rails i React. Pracujemy w małym, doświadczonym zespole, w którym decyzje techniczne podejmowane są blisko kodu. Wynagrodzenie: B2B: 17000-21000 netto VAT UoP: 14110-17430 brutto Stos technologiczny Backend: Ruby on Rails, Ruby, PostgreSQL,... (więcej)
- Projektowanie, rozwój i utrzymanie aplikacji webowych (frontend i backend)
- Praca z Ruby on Rails (backend) oraz React / JavaScript (frontend)
- Samodzielne dostarczanie złożonych zadań (funkcjonalności, poprawki błędów, refaktoryzacja)
- Przejmowanie odpowiedzialności za wybrane komponenty i obszary systemu
- Dbanie o jakość kodu: testy automatyczne (RSpec), code review
- Współpraca z Product Managerami oraz zespołem Customer Success
- Mentoring młodszych developerów oraz ...
- Minimum 3–5 lat komercyjnego doświadczenia jako Full Stack Developer
- Bardzo dobra znajomość Ruby on Rails oraz React
- Doświadczenie w pracy z SQL / PostgreSQL
- Swoboda w pracy z Gitem
- Umiejętność samodzielnego rozwiązywania problemów i podejmowania decyzji technicznych
- Doświadczenie w code review i utrzymywaniu wysokiej jakości kodu
- Proaktywna postawa oraz bardzo dobre umiejętności komunikacji zespołowej
- Znajomość języka niemieckiego na poziomie wystarczającym ...
- Atrakcyjne wynagrodzenie i elastyczna forma współpracy
- Możliwość pracy zdalnej lub w biurze
- 3 godziny tygodniowo na Twój rozwój
- Prywatna opieka medyczna
- Finansowanie sprzętu dla pracowników B2B
- Dostęp do firmowej biblioteki i możliwość jej rozbudowy
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W CONTMAN naszym „core” jest budowa autorskich produktów nowej generacji, które napędzają procesy w największych organizacjach w Polsce - od bankowości i leasingu, po logistykę. Tworzymy własne, zaawansowane silniki, które każdego dnia bezpiecznie procesują setki milionów dokumentów. To, co nas wyróżnia, to podejście do danych. Wykorzystujemy AI oraz duże modele językowe (LLM) , aby zamieniać tysiące e-maili i martwe archiwa w realne decyzje biznesowe i oszczędności.... (więcej)
- Rozwój aplikacji Cyfrowego Archiwum (zaawansowane zarządzanie dokumentami i metadanymi).
- Praca nad wydajnością i architekturą repozytoriów obsługujących do 500 mln dokumentów.
- Aktywny udział w kreowaniu rozwiązań - od koncepcji po wdrożenie.
- Zapewnienie wysokiej jakości kodu poprzez testowanie (Playwright) i dbałość o dobre praktyki.
- Doradza i sugeruje: Potrafisz spojrzeć na projekt całościowo, zaproponować lepszą architekturę lub nowocześniejsze podejście.
- Rozumie Produkt: Wiesz, że Frontend to nie tylko kod, ale przede wszystkim UX (User Experience) i użyteczność. Tworzysz narzędzia, które mają działać niezawodnie.
- Dba o jakość: Testy automatyczne to dla Ciebie standard, a nie przykry obowiązek.
- Ma doświadczenie w skali: Praca nad systemami operującymi na setkach milionów rekordów to dla ...
- 100% pracy zdalnej: Pracuj skąd chcesz, ale bądź z nami w kontakcie w kluczowych godzinach (10:00 – 16:00).
- Stawka: 150 – 180 PLN netto / h (VAT).
- Realny wpływ: Twoje rekomendacje są dla nas ważne - jesteś ekspertem, którego słuchamy.
- Wyzwania i rozwój: Praca nad systemami dla liderów rynku z każdego sektora gospodarki.
- Partnerskie podejście i bezpośredni wpływ na architekturę rozwiązań.
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Join Our Tech Team as a Senior iOS Developer We are looking for a Senior iOS Developer who understands not only how to build features, but how to design scalable, maintainable, and high-quality mobile systems. This role is for engineers who think in systems, understand trade-offs, and take full ownership of architecture, performance, and code quality. If you are comfortable discussing ARC internals, structured concurrency, architectural boundaries, and long-term maintainability, this role is for... (więcej)
- Build features and design scalable, maintainable, and high-quality mobile systems.
- Take full ownership of architecture, performance, and code quality.
- Discuss ARC internals, structured concurrency, architectural boundaries, and long-term maintainability.
Responsibilities
- Swift & Internals
- Strong understanding of value vs reference semantics, copy-on-write, dispatch.
- Practical knowledge of ARC, retain cycles, closure capture lists.
- Awareness of abstraction and performance ...
- Strong understanding of Swift and its internals.
- Experience in designing production architectures.
- Deep knowledge of UIKit and SwiftUI.
- Familiarity with structured concurrency and thread safety.
- Strong code review and unit testing skills.
- Experience with CI/CD processes.
- 2-step recruitment process.
- Remote-friendly work model.
- Flexible work hours.
- High engineering bar and real technical ownership.