About Shelf

Shelf builds software that helps enterprises make AI work in the real world. We build products people depend on, which means product judgment, engineering quality, and execution speed all matter at the same time.

About the Role

This role is for a senior full stack engineer with strong product instincts.

You will own meaningful product slices end to end: understand the problem, shape the approach, build the frontend and backend pieces, ship them, and improve them based on real usage. We want someone who is equally comfortable improving a user flow, shaping an API, and closing the loop on quality in production.

This is a product engineering role with real end-to-end ownership.

What You Will Own

• Build and ship user-facing product features across frontend and backend boundaries.
• Turn rough product goals into practical solutions with good scope, sensible trade-offs, and strong execution.
• Work comfortably in UI, application logic, APIs, and data flows rather than stopping at team boundaries.
• Partner closely with product and design while still being able to move when the spec is incomplete.
• Improve usability, clarity, performance, and reliability, not just feature completeness.
• Instrument what you ship so we can learn from production behavior and iterate quickly.
• Use AI tools daily to move faster and help improve internal workflows, tooling, and engineering leverage.
• Keep the bar high on code quality, testing, and ownership after launch.

What Strong Performance Looks Like

• You can take a vague product problem and turn it into a shipped, well-reasoned solution.
• Your features feel coherent end-to-end because you care about both implementation and product quality.
• You do not treat frontend and backend as separate worlds; you use both to solve the actual problem.
• You bring momentum. Work moves because you are on it.

What We Are Looking For

• Strong senior-level experience shipping production web products.
• Strong frontend ability with React and TypeScript or an equivalent modern web stack.
• Real backend ability. You do not need to be backend-only, but you can design and ship APIs, backend logic, and data flows when the product needs it.
• Strong product sense. You notice awkward flows, weak defaults, and unnecessary complexity, and you improve them.
• Good judgment about scope, iteration, and technical trade-offs.
• Clear communication and comfort working across engineering, product, and design.
• AI-native working style. You already use AI tools as part of daily implementation and problem solving, and you are excited to improve how engineering work gets done.

Strong Plus

• Experience with AI-powered product experiences such as chat, search, recommendations, workflows, or agent-like systems.
• Experience with Python, Node.js, or both on the backend.
• Experience owning product areas with limited oversight.
• Strong feel for performance, accessibility, and production quality in complex web applications.

How We Evaluate Fit

We care more about end-to-end ownership, product sense, and the ability to ship meaningful work than a perfect match to every framework on paper. If you are the kind of engineer who can make a product better from multiple angles, we want to talk.

What Shelf Offers

• B2B contract.
• Stock options.
• MacBook Pro.
• A strong AI-native engineering environment with modern tools and room to experiment.

Our Values:

Quality - We’re united by our focus on world‑class Quality. Quality in all things – starting with everything that leaves your desk. Everything you touch – every email, report, campaign, and piece of code – should be outstanding. Your work product should blow people away. Having people look at what you’ve done and say, “Wow.” That’s the standard here. Remember that how you do anything is how you do everything. Focus on craftsmanship—your ability to make things better.

Momentum - for us means that you should know that the things you’re responsible for are moving forward. When you look around and see something that’s stalled, get it moving again. We pride ourselves on “ball movement.” When your boss or team leaves you with something, they should return to see measurable progress. Small, continuous movement is our recipe for success. Constantly look for how to make the work around you move forward. We want you to initiate solutions, ideas, and progress. Don’t wait for it to come to you—reach out and create movement. All the time.

Accountability - We expect every team member to feel that they are accountable for more than anyone might normally expect. Each of us should feel real responsibility for things even at the edge of our control. We consistently share and align on expectations, give each other open and respectful feedback, and use those two drivers to ensure that every agreement we make with one another is clear and complete.

Hard Work - We’re here to do something difficult together. We care intensely about the mission and we expect that from our teammates. That care means that we work hard here. Hard work comes with long hours, extra effort…and real opportunity at Shelf. Your passion for creating and sustaining output is a part of our DNA. Support each other, cheer each other on, drive the mission forward. Great teams sustain intense effort together to win.

Learning Agility - We’re innovating in one of the fastest‑moving spaces in history at a time of accelerating global change. That’s incredibly exciting and requires each of us to commit fully to learning each and every day so that we can be the best at what we do. None of us know everything. All of us can learn anything. Staying open and constantly curious is a key success driver at Shelf. It also requires humility. We prize people who are consistently humble and open to making mistakes and growing from them. Recognize also that learning itself is a skill…we need you to be really good at it. Keep dialing in your own understanding about how you learn best and push yourself to keep growing.

Adapt and Thrive - Overcoming challenges lives deep in our DNA. We have a proud history of understanding and living the reality that obstacles are our opportunities…they’re the key to our success. Change is a constant in our business and fighting change is counterproductive. We need you to be good at being uncomfortable and understand that discomfort is the key to growth. Cultivate your own ability to adapt and know that struggling well is something you’ll share with every team you’re on at Shelf. Our company stories are about thriving through real difficulty…together.

Win Together - We win or lose as a team. Always. Everything you do here is connected to the rest of the organization. Part of our shared team environment demands full honesty…real candor and directness with one another. We expect you to constantly be thinking about how to support your teammates and the company, always acting in service to our shared mission and what’s best for the organization as a whole.

What is Box?

Box is the world's leading Content Cloud. We are trusted by more than 115K organizations around the world today, including nearly 70% of the Fortune 500 and leaders across deeply regulated industries (such as JLL, and Nationwide), to protect their data, fuel collaboration, and power critical workflows with secure, enterprise AI.

By joining Box, you will have the unique opportunity to continue driving our platform forward. Content powers how we work. It's the billions of files and information flowing across teams, departments, and key business processes every single day: contracts, invoices, employee records, financials, product specs, marketing assets, and more. Our mission is to bring intelligence to the world of content management and empower our customers to completely transform workflows across their organizations. With the combination of AI and enterprise content, the opportunity has never been greater to transform how the world works together and at Box you will be on the front lines of this massive shift.

Founded in 2005, Box is headquartered in Redwood City, CA, and we have offices across the United States, Europe, and Asia.

Why Box needs you?

We're looking for a Staff Engineer to join our Mobile team in Warsaw and lead a strategic platform transformation. Our mission is to deliver a world-class mobile experience that keeps pace with our web product — and to do that, we're moving to React Native as our cross-platform foundation.

You will be the technical anchor of this multi-year initiative: setting the architectural direction, driving the adoption of React Native across the team, and enabling us to ship the same features on iOS, Android, and web from a single codebase. Mobile is a high-visibility surface used by millions of Box customers, and this role sits at the heart of how we evolve it.

This is not a solo contributor role. We have firepower in the team. What we need is someone who can coach engineers, build engineering culture, and make the transformation stick — not just close the gap once, but establish a sustainable, scalable way of building cross-platform products at Box.

Who you are?

We are an AI-first company. This means you approach your work with a growth mindset and find ways to leverage AI to help make faster, smarter decisions that will 10X your impact at Box.

• 8–10+ years of professional software engineering experience
• Deep, hands-on expertise in React Native - this is the single most critical requirement for this role
• Proven experience building cross-platform mobile products targeting iOS, Android, and web
• (Ideally) have personally led or been a key contributor to a migration from native iOS/Android to React Native
• Strong understanding of both iOS and Android platform fundamentals
• Excellent cross-functional collaboration and communication skills - you know how to work with product, design, and platform teams
• Experience mentoring engineers and developing team capabilities
• Must speak English proficiently

Bonus points for

• Experience driving platform or architectural transformations in a product company
• Familiarity with web technologies (React) and how they intersect with the React Native ecosystem
• You act like an owner and strive to do work you're proud of, both technically and in your team interactions
• Experience working on mobile products at scale with large, cross-functional engineering organisations

What you'll do?

• Define and drive the technical direction and architecture of Box's React Native migration
• Coach and upskill mobile engineers, embedding React Native best practices across the team
• Collaborate, influence, and drive alignment across mobile, web, product, and platform teams
• Attend and engage in weekly stand ups, team meetings, and manager 1:1s
• Model solid engineering practices around architectural design, testability, scalability, and maintainability
• Partner with Engineering Managers, Product Managers, and cross-functional stakeholders to shape the mobile roadmap
• Contribute hands-on code (~50% of time) on the most architecturally critical areas
• Participate in our on-call rotation, available at all times while on-call to help respond to and triage any issues that arise

Box lives its values, with community and in-person collaboration being a core part of our culture. Boxers are expected to work from their assigned office a minimum of 3 days per week, with a focus on Tuesdays, Wednesdays and Thursdays. Your Recruiter will share more about how we work and company culture during the hiring process.

Equal Opportunity

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, and any other protected ground of discrimination under applicable human rights legislation.

For details on how we protect your information when you apply, please see our Personnel Privacy Notice. For more details on how Box Poland protects your information, please see our Supplemental Personnel and Candidate Privacy Notice.

#LI-EMEA #LI-RB1 #LI-HYBRID

#LI-OB1 #LI-hybrid

We are looking for an experienced Senior Full Stack Software Engineer to join our teams in Warsaw. Bolt engineering teams are working on unique product challenges: complex algorithms for demand prediction, optimal real-time pricing, routing, fraud detection, distributed systems and much more.

With over 200 million customers in 50+ countries, Bolt is one of the fastest-growing tech companies in Europe and Africa. And it's all thanks to our people.

We believe in creating an inclusive environment where everyone is welcome, regardless of race, colour, religion, gender identity, sexual orientation, national origin, age, or disability.

Our ultimate goal is to make cities for people, not cars, and we need your help to achieve this mission!

As a Senior Full Stack Engineer, you will be responsible for architecting, designing, developing, and deploying Bolt's growing backend and frontend systems. That will mostly happen via coding in Node.js and TypeScript (PS: no previous experience with Node.js is needed).

• Designing and building Bolt's growing backend and frontend systems.
• Coding mostly in TypeScript (previous experience with Node.js / React / React-Native is not required, but always welcomed.
• Paying attention to detail, proactively fixing upcoming bugs and solving technical challenges.
• Contributing ideas to our product development roadmap.
• Giving a hand to your fellow colleagues, participating in code reviews and architecture discussions.

We are not really looking for Node.js experts, but for cross-language engineers for whom a specific stack is just a tool to solve a problem, not the solution itself.

• You have experience in JavaScript and Node.js / C++ /Java or any OO language.
• You have knowledge of major frontend frameworks and experience with API design and development.
• You have a university degree in a technical subject (Computer science, Mathematics or similar).
• You have 4+ years of experience in software development.
• You have good English and communication skills.
• You have solid understanding of algorithms, data structures, experience with any SQL (MySQL/PostgreSQL).

Experience is great, but what we really look for is drive, intelligence, and integrity. So even if you don’t tick every box, please consider applying if you feel you’re the kind of person described above!

• Play a direct role in shaping the future of mobility.
• Impact millions of customers and partners in 600+ cities across 50+ countries.
• Work in fast-moving autonomous teams with some of the smartest people in the world.
• Accelerate your professional growth with unique career opportunities.
• Get a rewarding salary and stock option package that lets you focus on doing your best work.
• Enjoy the flexibility of working in a hybrid mode with a minimum of 2 days in the office each week to foster strong connections and teamwork.
• Take care of your physical and mental health with our wellness perks.

*Some perks may differ depending on your location and role.

Are you passionate about designing and building technology that connects the physical and digital worlds? Do you thrive on leading complex projects and mentoring other engineers, while working with cutting-edge IoT devices?

Alarm.com is seeking a Senior Software Engineer to join our Protocols Team, which develops and maintains the communication backbone that powers millions of smart home devices worldwide.

In this role, you will drive the design and delivery of robust, scalable solutions that enable seamless device interoperability. You will collaborate across teams to define technical strategy, guide architecture decisions, and ensure high-quality implementation. Your work will directly influence the performance, security, and reliability of our platform.

If you enjoy solving challenging problems, improving processes, and mentoring future engineering talent, we would love to talk to you.

What You Will Do

• Lead the design, development, and maintenance of full-stack software across diverse platforms and technologies.
• Architect solutions that balance scalability, performance, and maintainability for device protocol communications.
• Research emerging technologies and champion adoption where they can bring significant value.
• Guide the software development life cycle from requirements gathering through deployment, monitoring, and optimization.
• Collaborate with product managers, QA, and other engineering teams to deliver impactful solutions.
• Make strategic technical decisions, setting direction for projects and influencing the broader team’s approach.
• Mentor junior and mid-level engineers, providing code reviews, architectural coaching, and career guidance.
• Contribute innovative ideas and drive continuous improvement in both product and process.

What You Bring

• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related field, or equivalent professional experience.
• 5+ years of professional software development experience, with proven success in delivering complex projects.
• Advanced object-oriented programming skills, preferably in C#.
• Strong experience with database design, SQL, and backend services.
• Proficiency with modern JavaScript frameworks such as Ember.js, Angular, or React a plus.
• Experience in the IoT and/or home automation field is a plus.
• Solid track record of implementing and improving unit testing and automated testing strategies.
• Experience in distributed systems, real-time communications, or high-performance applications.
• Excellent communication skills and ability to lead cross-functional collaboration.

Why You Will Love Working Here

• Collaborate with exceptional peers. Work alongside talented engineers who value innovation and excellence.
• Shape technical direction. Influence architecture decisions that impact millions of connected devices globally.
• See your impact. Watch your solutions interact with and power IoT hardware in real-world environments.
• Mentor and grow talent. Help guide the next generation of engineers while building high-performing teams.
• Work with cutting-edge technology. Our stack includes C#, .NET, SQL Server, Kafka, Ember.js, and native iOS/Android apps.
• Long-term employment based on a permanent employment contract (CoE).
• Attractive benefits package: including medical care, life insurance, sports package, annual budget for professional development ($2,000).

COMPANY INFO

Alarm.com is the leading cloud-based platform for smart security and the Internet of Things. More than 7.6 million home and business owners depend on our solutions every day to make their properties safer, smarter, and more efficient. And every day, we’re innovating new technologies in rapidly evolving spaces including AI, video analytics, facial recognition, machine learning, energy analytics, and more.  We’re seeking those who are passionate about creating change through technology and who want to make a lasting impact on the world around them. 

EBS Sp. z o.o. is a dynamically growing Polish technology company with over 35 years of experience, specializing in the development of smart security solutions. We are part of the American corporation Alarm.com, a leading global provider of intelligent security solutions for homes and businesses.

For more information, please visit www.alarm.com or ebssmart.com

Alarm.com is an Equal Opportunity Employer

 In connection with your application, we collect information that identifies, reasonably relates to, or describes you ("Personal Information"). The categories of Personal Information that we may collect include your name, government-issued identification number(s), email address, mailing address, other contact information, emergency contact information, employment history, educational history, criminal record, and demographic information. We collect and use those categories of Personal Information about you for human resources and other business management purposes, including identifying and evaluating you as a candidate for potential or future employment or future positions, recordkeeping in relation to recruiting and hiring, conducting criminal background checks as permitted by law, conducting analytics, and ensuring compliance with applicable legal requirements and Company policies. By submitting your application, you acknowledge that we may retain some of the personal data that you provide in your application for our internal operations, such as managing our recruitment system and ensuring compliance with labor laws and regulations, even after we have made our employment decision.We will retain this data for a maximum of 3 years after the end of the recruitment process. The data administrator is EBS Sp. z o.o.

Your key skills and capabilities: 

• Strong SQL and Python skills  

• Data modelling experience (dimensional, relational, or similar)  

• Experience building and maintaining backend systems  

• Familiarity with Microsoft Azure  

• Understanding of APIs, containers, and backend development best practices 

• Implementing cloud-native data platforms 

• Engineering scalable and reliable pipelines 

• Good knowledge of distributed computing with Spark 

• Understanding of cloud architecture principles and best practices 

• Hands-on experience in designing, deploying, and managing cloud resources 

• Agile ways of working 

• Experience in cloud automation and orchestration using tools such as CloudFormation or Terraform 

• Monitoring and performance tuning of cloud-based applications and services  

Nice to haves:  

• Experience with Snowflake, dbt, CubeJS 

• Experience with Databricks, PySpark, ML workflows  

• Experience with containerized deployments (Docker, Kubernetes, Azure Container Apps).  

• Frontend development experience (React, Next.js, TypeScript)  

• Infrastructure-as-code (Terraform, CloudFormation) 

• Model Deployment & Serving – Deploy and manage ML models using MLflow, Azure ML, SageMaker, or similar, ensuring scalability and performance  

• Monitoring & Retraining – Set up model drift detection, performance monitoring, and automated retraining   

• ML Pipelines & CI/CD – Automate end-to-end ML workflows 

Key tasks:  

• Develop, maintain, and optimise backend services for our SaaS platform  

• Work with SQL and Python daily to build robust data pipelines and transformations  

• Model, structure, and query data to support product features and reporting  

• Integrate and maintain data ingestion flows (e.g., Fivetran, custom connectors)  

• Implement backend APIs (FastAPI) to power our web application  

• Work with our cloud environment (Azure - experience with AWS or GCP also valuable)  

• Collaborate with teammates to plan, build, and deploy features in an Agile way 

• Contribute to CI/CD workflows, monitoring, and infrastructure-as-code 

We expect you to have some knowledge about how to architect, design, develop, deploy, and operate a data platform.