Opis oferty
29938 zł
Poland, Warszawa
Senior Backend Python Engineer w Warszawa, Polska is listed on Jobeax. Browse 110,000+ vacancies available.
About Shelf The enterprise is going agentic and we are creating a unique operating system for an automated future. Most AI agents break the moment they hit real business complexity. That’s why we built a platform that models a company's policies, workflows, and operational logic into an AI Data Model. Shelf enables AI Agents to reliably reason and deliver precise and reliable outcomes at scale. We already have what most AI startups are still trying to earn: Enterprise customers such as Glovo, Nespresso, and HelloFresh, real production data, and tens of thousands of users. Customers trust us with operational knowledge: Our platform is highly reliable and secure with SOC2, HIPAA-ready security practices, and mature integrations in place. Job Description: This role is for a senior backend engineer who can design and own business-critical systems. We want someone who is strong technically, communicates clearly, and has the judgment to make systems simpler, safer, and easier to evolve over time. Expect real ownership from system design through production. The team is small enough for engineers to make real decisions. Career growth comes from ownership. Titles matter less than the scope you can carry. The people who grow fastest take responsibility for larger systems, drive customer outcomes, and strive to develop better engineering practices. You solve ambiguous problems by shaping the right architectural approach, then ship, iterate, and keep it healthy in production. We build AI-native. Engineers use Codex, Claude Code, and agents they build themselves. We invest in harness engineering through skills, CLIs, logs, traces, and orchestration. This is a role for someone in a high-growth chapter of their career, who wants to do the best work of their life, learn fast, and win as part of a team going all-in on a hard mission. Location – Warsaw, work from the office. What You Will Own Design and ship backend services, APIs, data flows, and background processing for production systems Turn vague requirements into concrete technical plans, trade-offs, and execution Own services after launch: reliability, observability, performance, and incident follow-through Instrument what you ship and use production signal to iterate, not just to keep the lights on Make sound decisions around system boundaries, data models, interfaces, and scaling paths Work closely with product, frontend, and platform engineers to deliver end-to-end outcomes Improve engineering leverage with AI tooling, automation, and internal workflows rather than using AI as a gimmick Raise the quality bar through code review, design review, and pragmatic technical leadership What Strong Performance Looks Like You reliably move important backend work forward without waiting to be tightly managed. Your systems are easier to operate and easier to change because of your design decisions. You make smart trade-offs to unblock shipping - and you stand by those decisions. You keep raising the bar on engineering excellence for yourself and everyone else. What We Are Looking For Strong senior-level backend engineering experience in production systems Strong Python skills and the ability to design clean, maintainable backend code Good distributed systems judgment: concurrency, failure handling, data consistency, async work, and service boundaries Hands-on experience with cloud infrastructure such as AWS, GCP, or Azure Comfort with database schema design and performance tuning for real-time and high throughput scenarios A security-conscious approach to engineering: you build for enterprise-grade requirements, handle sensitive data carefully, and think about the security implications of the systems and AI workflows you ship Ability to go from problem statement to design to production rollout with real ownership Clear written and verbal communication. You can explain systems, trade-offs, and incidents without hiding behind jargon AI-native working style. You already use AI tools in your daily engineering workflow, and you're excited to improve how the team builds, not just your own output: better tooling, workflows, and engineering leverage Strong Plus Experience building agentic systems: AI agents, tool-calling, orchestration, retrieval, or LLM-backed infrastructure in production Working knowledge of TypeScript or the ability to contribute across the stack when needed Experience shaping technical direction for other engineers, even without formal management responsibility How We Evaluate Fit We care more about ownership, systems judgment, and learning velocity than a perfect keyword match to our stack. If you are the kind of engineer who can take a messy problem and turn it into a strong production system, we want to talk. What Shelf Offers: B2B contract. Company Stock Options. Hardware: MacBook Pro. Modern technical stack. Develop open-source software. GitHub Copilot subscription. A strong AI-native engineering environment with modern tools and room to experiment, including Claude Code, OpenAI Codex, and GitHub Copilot. Why Shelf: Becoming one of the defining companies of the AI age is a hard plan, and our leadership team has the rare mix of deep AI, knowledge-management, and enterprise SaaS experience to actually execute it We have raised over $60 million in funding; our investors include Tiger Global, Insight Partners, Base10, and others Recognized by Gartner as a Cool Vendor, with high-velocity growth powered by the most innovative product in our category We love our customers and our customers love us. Ask a Shelf customer why, and they'll tell you it's our innovative capabilities and rock-solid reliability, that they enjoy working with our people, and most of all, the improvements they see in their business KPIs We're building fast across three hubs: our New York HQ and our Product and Engineering centers in Warsaw and Lviv
Podobne oferty
Devapo is seeking an experienced Python Developer to design, build, and maintain scalable backend applications and AI-powered solutions for global clients. The role involves leveraging cloud platforms, developing RESTful APIs, and implementing AI features using LLM technologies. You will work with cross-functional teams, ...
Poland, Warząchewka Polska
voize, a fast-growing Warsaw-based tech startup, is hiring a Backend Engineer to join the US/UK squad. You will ensure smooth data flows between voize and partner software, building integrations with care and scale. Target candidates bring Kotlin mastery, API integration experience, and strong English communication skills. ...
Poland, Warszawa
... robotów intralogistycznych - system, który łączy zewnętrznych klientów WES z silnikiem planowania tras C++ i fizycznymi robotami działającymi na hali. Poszukujemy senior backendowca, który ma głowę do architektury mikroserwisów, rozumie asynchroniczne Python i wie, jak pisać systemy odporne na awarie w środowisku czasu rzeczywistego. ...
Poland, Zakroczym
Vyntra in Warsaw is seeking a Senior Software Developer (Java) to join the Financial Crime Product Development team. You will design and develop backend services in Java within a small, autonomous agile team, building and maintaining an enterprise-grade platform used by global banks to detect fraud and financial crime. ...
Poland, Warszawa
A digital bank is seeking a Java Developer to work on transformational projects within their Banking as a Service model. You will design and implement scalable applications while collaborating with a team. The role involves code reviews, troubleshooting, and mentoring less experienced members.
Poland, Warszawa
A leading technology firm in Wrocław is looking for passionate backend developers to join their Risk Management team. Ideal candidates should have at least 5 years of experience in backend development within financial services. The role involves building innovative solutions while fostering a collaborative environment. ...
Poland, Wrocław
2k zł PLN
... the opportunity to shape solutions, mentor others, drive architecture decisions, and take ownership of strategic initiatives. Opportunity Overview As a Mid Python Engineer, you will design and build robust backend services and APIs that power data-driven products used by real users at scale. You'll work on meaningful, ...
Poland, Katowice
EPAM Systems in Poland is seeking a Senior Python Engineer with cloud expertise for a strategic project. You will build scalable, secure Python-based solutions and work across AI/ML, data pipelines, and automation in a hybrid setup. You will collaborate with cross-functional teams, design cloud architectures on AWS/Azure/GCP, ...
Poland, Wrocław
$2k USD
We are seeking a Senior Full-stack Engineer to strengthen the operational foundation of the fund by expanding the application and deepening the insights available to the Infrastructure team. Responsibilities Enhance and modernize data ingestion pipelines to support scalable data processingDevelop and maintain high-performance ...
Poland, Katowice
$2k USD
We are seeking a Senior Full-stack Engineer to strengthen the operational foundation of the fund by expanding the application and deepening the insights available to the Infrastructure team. Responsibilities Enhance and modernize data ingestion pipelines to support scalable data processingDevelop and maintain high-performance ...
Poland, Poznań
... платформы, соединяющей UI‑слой с несколькими бэкенд-системами. Платформа изначально поддерживает консолидированный торговый blotter по FX, опционам, товарам и процентным ставкам. Команда работает над backend-сервисами, архитектурой обмена сообщениями и интеграцией систем, решая сложные задачи в условиях высокого воздействия.
Poland, Warszawa
IT Performance poszukuje doświadczonego .NET Developera (Mid/Senior) do zespołu zajmującego się systemami Security, Video-CCTV i Data Processing. Praca w środowisku on-premise, z planowaną migracją do .NET 10, z możliwością obsługi starszych komponentów .NET Framework. Zakres obejmuje rozwój i utrzymanie backendu C#/.NET, ...
Poland, Warszawa
Internetwork Expert
Trinetix seeks a Senior AI Engineer to design and build production-grade AI applications and services using Python. You will turn business and AI use cases into reliable, scalable technical solutions, working with LLMs, backend services, APIs, and enterprise systems. You will contribute to architecture decisions, implement ...
Poland, Warszawa
... professionals to develop distributed BigData processing pipelines. Candidates should have 7+ years of expertise in Spark and Scala, along with substantial experience in Python and Robot Framework. You will collaborate with DevOps and QA teams in an Agile environment, maintaining a focus on quality and continuous improvement. The role ...
Poland, Łódź
PRIMUS Global Solutions (PRIMUS UK & Europe)
PRIMUS Global Solutions (PRIMUS UK & Europe) seeks a React Developer with strong full‑stack experience across React, https://jobeax.com/link/Z30sZYC3jcRenVso, Python, and GCP to build scalable, high‑performance applications and backend services. The role involves working with a global, cross‑functional team to deliver robust ...
Poland, Warszawa
Sii Poland is seeking an experienced Senior Data Engineer to design, develop, and maintain scalable data platforms that enable advanced analytics and global decision-making. You will contribute to a modern data platform used across markets, delivering high-quality, data-driven solutions at scale. You will implement Python-based ...
Poland, Rzeszów
Talanto is hiring a Senior Full Stack Engineer (React + Django) to design and implement web applications that scale. You will work across frontend and backend, collaborating with product and design to deliver robust features and clean interfaces. You should be proficient in modern JavaScript (React) and Python Django, with ...
Poland
$2k USD
We are looking for a Senior Python Developer to join our team and contribute to building full-stack, cloud-native solutions on AWS. In this role, you will collaborate with architects and cross-functional teams to design, develop, and deploy scalable applications while championing best practices in automation, testing, and ...
Poland, Gdańsk
38000 - 44000 zł
... processes, solutions, and workflows in a clear and structured manner. Required Qualifications 4+ years of professional experience as a backend developer using Python. Bachelor’s degree in Computer Science, Engineering, or a related field. Experience with AWS Proven experience designing and implementing backend systems from ...
Poland, Warszawa