New offer - be the first one to apply!

July 4, 2026

Software Engineer (.NET/Typescript/Python)

Senior • Hybrid

5,000 - 9,000 USD/mo

Warsaw, Poland

Software Engineer (.NET/Typescript/Python)

Salary: 5000-9000$ per month
Hybrid

We are looking for a Senior Software Engineer to join a US-based engineering and product leadership team, with end-to-end ownership of real features on a modern AWS stack. The team moves fast, ships continuously, and expects engineers to use AI coding tools as a core part of how they work. For those seeking genuine ownership in a small, high-trust environment without the bureaucracy of a large captive center, this is that opportunity.

Requirements

  • 4–7 years of professional software engineering experience building and shipping production systems.
  • Demonstrated hands-on experience with AI coding tools and a track record of using them to materially increase output.
  • Strong AWS experience, comfortable designing, deploying, and operating services on the AWS stack.
  • Hands-on exposure to container and batch workloads (ECS, Batch) and infrastructure-as-code (Terraform).
  • Proficiency in one or more of TypeScript, .NET, or Python, with adaptability to work across all three.
  • Proven ability to thrive in a fast-paced environment where priorities move and outcomes are owned.
  • Solid fundamentals in system/API design, testing, and CI/CD.
  • Strong written English and the self-direction to work effectively with a remote, US-based team.

Nice to have

  • Experience as an early engineer on a new team, product, or site.
  • Hands-on work with AWS Bedrock or other LLM/GenAI services in production.
  • Experience in marketing measurement and optimization, marketing mix modeling, attribution, media/marketing analytics, or adjacent analytic fields.
  • Familiarity with building data- or analytics-intensive applications.

Key Responsibilities

  • Design, build, and ship production features across the stack, owning work from design through deployment and operation.
  • Use AI development tools (Copilot, Cursor, Claude, and similar) to accelerate delivery, refactoring, testing, and debugging.
  • Build and run services on AWS, primarily ECS, Batch, and Bedrock.
  • Work across the stack in TypeScript, .NET, and Python, with infrastructure managed as code in Terraform.
  • Collaborate closely with US engineering and product partners across time zones.
  • Contribute to engineering standards, practices, and culture of a new team.

Similar jobs you might like

Technology

New offer

DevsData LLC

Frontend Engineer (React)

Mid

Hybrid

Warsaw, Poland

5,000 - 7,000 USD/mo

🏢 Summary: Frontend Engineer role focused on building production-grade Next.js applications with real-time AI interactions, semantic search, and interactive knowledge graphs for enterprise-scale AI software products. The position involves working with React and TypeScript, contributing to design systems, optimizing frontend performance, and supporting accessibility and security requirements. Candidates will also use AI coding assistants in daily workflows and maintain high standards for code quality and test coverage. 🗂️ Requirements: 3-5 years frontend engineering experience, React, TypeScript, Next.js, SSR/SSG/CSR knowledge, State management, Real-time UI updates, AI/LLM interface experience, Semantic search interfaces, Frontend performance optimization, Core Web Vitals, Accessibility, Localization, Security practices, Cross-browser compatibility, AI coding assistants, Code review, Test coverage, Technical communication 📃 Skills: React, TypeScript, Next.js, SSR, SSG, CSR, LLM, AI, SemanticSearch, CoreWebVitals, Accessibility, Security, Localization, ReactFlow, Highcharts, MCP, DSPy, Node.js, Python, RAG 🏢 Description: Frontend Engineer (React) 💰 Salary: 5,000-7,000 USD per month 🌎 Hybrid, 1 day remote ☑️ Full-time 🕦 B2B We're looking for a Frontend Engineer for a leading enterprise AI software provider. You'll build production Next.js applications with real-time AI interactions, including streaming LLM responses, semantic search, and interactive knowledge graphs. You'll also contribute to the design system, handle enterprise requirements such as accessibility and security, and own post-launch performance. The team serves enterprise customers at scale, maintains SOC 2 compliance with HIPAA-ready security, and uses AI coding assistants daily in their development process. Requirements 3-5 years in frontend engineering, with solid React and modern TypeScript skills Hands-on Next.js production experience, having shipped SSR applications and understanding the trade-offs among SSR, SSG, and CSR Strong grasp of state management, including some exposure to real-time updates, optimistic UI, or multi-tenant data Prior work on AI/LLM interfaces, such as streaming responses, chat UIs, or semantic search Practical understanding of frontend performance, including Core Web Vitals and common optimization methods Some background in enterprise application needs: localization, accessibility, security practices A security-minded approach to development, with care around sensitive data and awareness of security implications Solid product and UX judgment, able to spot issues and propose fixes Regular use of AI coding assistants as part of daily workflow Ability to explain design and technical decisions clearly, both in writing and verbally Nice to Have Experience with React Flow, Highcharts, or similar data-visualization libraries Direct experience with vector search UIs, RAG interfaces, or semantic search systems Familiarity with MCP, DSPy, or other current AI frameworks, and experience building agentic AI interfaces Basic understanding of Node.js/Python backend concepts, enough to read backend code and participate in API design discussions Past contributions to design systems or open-source component libraries Responsibilities Design and deploy production-ready Next.js applications handling complex state and live AI interactions Develop interfaces for AI features, including streaming LLM output, semantic search, interactive knowledge graphs, and agentic builders Support and extend the component library and design system, ensuring reusability, accessibility, and consistency Handle enterprise-level requirements such as localization, accessibility, cross-browser compatibility, and security practices Take responsibility for shipped features after launch: track performance, reduce bundle size, and monitor Core Web Vitals Apply AI tools in daily work to increase speed, and contribute to improving internal frontend processes Uphold high standards for code quality and test coverage via careful code review

Technology

New offer

DevsData LLC

Senior Frontend Engineer (React)

Senior

Hybrid

Warsaw, Poland

8,000 - 12,000 USD/mo

🏢 Summary: Senior Frontend Engineer role focused on building and scaling AI-powered Next.js applications with complex state management, real-time interactions, and enterprise-grade frontend architecture. The position involves owning frontend delivery, designing intuitive AI user experiences, and optimizing performance, accessibility, and scalability for high-load products. Hybrid full-time B2B engagement with a competitive salary range. 🗂️ Requirements: 5+ years of frontend engineering experience, 3+ years of React and TypeScript experience, Production experience with Next.js SSR applications, Knowledge of SSR, SSG, CSR trade-offs, Experience with complex state management, Experience building AI/LLM interfaces, Experience optimizing Core Web Vitals and frontend performance, Knowledge of localization, accessibility, security, and compliance, Security-conscious engineering approach, Experience using AI coding agents, Strong communication skills 📃 Skills: React, TypeScript, Next.js, SSR, SSG, CSR, JavaScript, LLM, AI, CoreWebVitals, Accessibility, Security, Localization, SemanticSearch, GraphQL 🏢 Description: Senior Frontend Engineer (React) 💰 Salary: $8000-$12,000 🕦 Full-time ☑️ B2B 🌴 Hybrid We are looking for a Senior Frontend Engineer to join a fast-growing AI product company's engineering team. The role sits at the crossroads of frontend architecture and product experience, owning both the delivery of business-critical Next.js applications and the design of intuitive, trustworthy user experiences for agentic AI products. Requirements Over 5 years of frontend engineering experience, including 3+ years specializing in React and modern TypeScript. Production Next.js experience: SSR applications at scale, app router, server components, and the trade-offs between SSR, SSG, and CSR. Complex state management for hard scenarios: real-time collaboration, optimistic updates, multi-tenant isolation, large-scale data sync. Experience building AI/LLM interfaces: streaming token responses, chat UIs, semantic search, or similar real-time AI interactions. High-load performance work: you monitor Core Web Vitals and know how to improve them under heavy traffic and large datasets. Enterprise application depth: localization, accessibility, security, and compliance, you understand the complexity beyond "making it work". A security-conscious approach to engineering: you handle sensitive data carefully and think about the security implications of what you ship. Strong craft and product instinct: you don't wait for perfect designs, you spot UX issues and propose solutions, and you're never satisfied with "good enough". AI-native working style. You already use AI coding agents daily and are eager to push the boundaries of harness engineering. Clear communication. You articulate design decisions and technical trade-offs clearly, verbally and in writing. Key Responsibilities Design and ship production Next.js SSR applications with complex state, high-load scenarios, and real-time AI interactions at scale. Build interfaces for AI-powered features: streaming LLM responses, semantic search across millions of documents, interactive knowledge graphs, and agentic builders. Architect component libraries and maintain the design system, ensuring reusability, accessibility, and consistent UX across the platform. Deliver enterprise-grade functionality: localization, accessibility compliance, cross-browser support, and security. Take full ownership after launch: monitor performance in production, optimize bundle sizes, instrument for Core Web Vitals, and ensure things scale gracefully. Keep the bar high on code quality, testing, and craft through thoughtful code review and mentorship.

Healthcare

DevsData LLC

Full-stack Engineer (Any language, tech agnostic; 100% remote)

Mid

Remote

Warsaw, Poland

18,300 - 25,600 PLN/mo

🏢 Summary: Full-stack Engineer role building and shipping end-to-end features for a health-tech AI product, covering internal clinician tooling and a client-facing app. The position involves integrating diagnostics, wearable and lab data, and leveraging AI coding agents as a core part of the development workflow. Engineers are expected to own architecture decisions, security, and delivery across the full stack in a fast-moving remote environment. 🗂️ Requirements: 4+ years professional software engineering experience, At least two shipped products used by real users, Strong Computer Science fundamentals (data structures, systems, software design), Experience with both backend and frontend development, Daily use of AI coding agents in development workflow, Experience with strict typing, linting, and automated testing, Ability to design and implement secure architectures, Availability during Central European morning hours, Fluent English for technical communication 📃 Skills: Fullstack, Backend, Frontend, APIs, Security, AI, Testing, Linting, Typing, Databases, Wearables, Integration 🏢 Description: 💰 Salary: $5,000-$7,000/month (depending on seniority) 🌎 100% remote 🕦 Full-time position, long-term ☑️ B2B contract We are looking for a Full-stack Engineer to join our client, a Singapore-headquartered health-technology and AI startup focused on longevity and preventative care. The product combines diagnostics, wearable signals, lab data, and AI to coordinate personalised health programmes for individual clients. You will own features end-to-end across two surfaces: internal tooling used by in-house clinicians to assemble recommendations, and the client-facing app that turns those recommendations into daily actions. AI coding agents are part of the daily workflow, and every engineer is expected to push what these tools can do, not treat them as autocomplete. The tech stack is intentionally not fixed; the bar is engineering judgement and shipping speed. Requirements 4+ years of professional software engineering experience, with at least two products shipped to real users Computer Science background, or an equivalent track record that shows the same depth in data structures, systems, and applied software design Strong fundamentals across both server and client work, regardless of which language or framework you used most recently Daily use of AI coding agents in your workflow, with an honest read on where they currently help and where they fail Comfort with strict typing, linting, automated tests, and the rest of a modern production setup Reliable availability during Central European morning hours, so meetings line up with Singapore afternoons Fluent English for technical discussions and written documentation Responsibilities Build and ship features across the full stack, from schema design through to the final UI details Develop the internal dashboards used by medical practitioners to interpret client data and assemble recommendations Develop the client-facing application that delivers daily health guidance to end users Design and tune the security posture separately for internal practitioner tooling and external consumer surfaces Integrate inputs from wearables, lab providers, and the physical clinic environment into one coherent product Push the AI tooling stack hard, both as part of the development process and inside product features Operate as a product-minded engineer: spot problems early, propose solutions, and drive them through to release Get to know DevsData We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team. We employ people with experience in international corporations as well as the ones from the best technical and business universities. Find out more: https://devsdata.com

Technology

Three Points

Senior Software Engineer (TypeScript / React / AWS) - AI startup

Senior

Remote

Poznan, Poland

25,000 - 28,000 PLN/mo

🏢 Summary: Senior Software Engineer role focused on building a real-time AI platform, owning features end-to-end across frontend, backend, and cloud infrastructure. The position involves developing full-stack solutions and contributing to technical architecture in a remote-first startup environment. 🗂️ Requirements: Strong experience with TypeScript, Strong experience with React, Hands-on experience with AWS, Experience with Docker, Experience with Linux, Experience with Git, Fluent English 📃 Skills: TypeScript, React, AWS, Docker, Linux, Git, Express, Tailwind, WebSockets, LangChain 🏢 Description: 💰 Salary: 25 000 – 28 000 PLN net/month (B2B) + 26 days paid annual leave + equity (ESOP) 📍 Location: Remote (Poland) + meetup in Poznań once per month Our client is an early-stage startup building a real-time AI platform that supports professionals during live conversations. The system processes interactions in real time and delivers contextual insights, knowledge, and guidance while conversations are happening. The founding team has strong experience in distributed systems, AI platforms, and enterprise SaaS and is currently expanding the engineering team to accelerate product development. Role The client is looking for a Senior Software Engineer who enjoys owning features end-to-end, from frontend interfaces to backend services and cloud infrastructure. You will work closely with the founding team on building a real-time AI-powered product , contributing to both product development and technical architecture. Responsibilities Build full-stack features using TypeScript Develop React-based user interfaces Design and maintain backend services and APIs Work with AWS cloud infrastructure Build and run Docker-based services Improve performance and reliability of real-time systems Requirements Strong experience with TypeScript and React Hands-on experience with AWS Experience with Docker and Linux Comfortable working with Git workflows Fluent English Experience working in remote teams Nice to Have Express Tailwind CSS Experience with real-time systems Knowledge of WebSockets / streaming Experience with LLM frameworks (e.g. LangChain) What the Client Offers Opportunity to build a product from an early stage Direct influence on architecture and product direction Work with experienced founders Remote-first environment Competitive salary + equity High level of ownership and autonomy

Technology

New offer

DevsData LLC

Senior Backend Engineer (Python)

Senior

Remote

Warsaw, Poland

8,000 - 12,000 USD/mo

🏢 Summary: Senior Backend Python Engineer role focused on building scalable AI-powered enterprise software and owning backend services from architecture to production. The position involves backend development, distributed systems, cloud infrastructure, and technical leadership in a hybrid B2B environment. Candidates will collaborate across teams to deliver secure, high-performance applications using modern engineering and AI-assisted workflows. 🗂️ Requirements: 6+ years building production-grade backend systems, Strong Python experience, Experience with distributed systems, Knowledge of concurrency and asynchronous processing, Experience designing REST APIs, Experience with scalable architectures, Hands-on cloud platform experience, Database design and performance optimization knowledge, Experience building secure enterprise applications, Ability to own projects from design to deployment, Cross-functional collaboration skills, Strong troubleshooting and problem-solving skills, Excellent English communication skills, Experience with AI tooling and automation workflows 📃 Skills: Python, REST, AWS, GCP, Azure, SQL, TypeScript, LLM, AI, Monitoring, Logging, Observability, Automation 🏢 Description: Senior Backend Engineer (Python) 📍 Warsaw, Poland (Hybrid) ☑️ Full-time 🕦 B2B Contract 💰 $8.000 - $12.000/month We are hiring a Senior Backend Python Engineer for an innovative technology company building AI-powered enterprise software used by organizations worldwide. This role is ideal for an experienced backend engineer who enjoys designing scalable production systems, solving complex technical challenges, and taking ownership of critical backend services from architecture through production. You'll work closely with product, frontend, and platform engineers to build reliable, secure, and high-performance applications while leveraging modern AI-assisted engineering practices . As a Senior Backend Python Engineer you will provide backend development, system design, cloud infrastructure, and technical leadership in a fast-paced engineering environment where ownership and continuous improvement are highly valued. Requirements 6+ years of experience building and maintaining production-grade backend systems Strong hands-on experience with Python and modern backend development practices Strong understanding of distributed systems, concurrency, asynchronous processing, and scalable architectures Experience designing and developing REST APIs and backend services Hands-on experience with cloud platforms such as AWS, GCP, or Azure Strong knowledge of database design, performance optimization, and high-throughput applications Experience building secure, reliable enterprise applications with a security-first mindset Ability to own projects from technical design through deployment and production support Experience working closely with cross-functional engineering and product teams Strong troubleshooting, problem-solving, and communication skills Excellent written and verbal English communication skills Improve engineering leverage with AI tooling , automation, and internal workflows rather than using AI as a gimmick Nice to Have Experience building AI-powered applications, agentic systems, LLM integrations, or orchestration frameworks Experience with TypeScript or full-stack development Experience mentoring engineers or contributing to technical leadership Experience with observability, monitoring, logging, and performance optimization Experience working in fast-growing product or startup environments Responsibilities Design, develop, and maintain scalable backend services, APIs, and asynchronous processing systems Translate business requirements into robust technical solutions and scalable system designs Own services throughout their lifecycle, including deployment, monitoring, reliability, and continuous improvement Design efficient data models and optimize database performance for production workloads Collaborate with product, frontend, and platform teams to deliver end-to-end features Improve engineering productivity through automation and AI-assisted development workflows Participate in architecture discussions, code reviews, and technical decision-making Implement monitoring, logging, and observability solutions to ensure production reliability Continuously improve system scalability, performance, security, and maintainability Contribute to engineering best practices and knowledge sharing across the team

Technology

DevsData LLC

Software Engineer (React)

Senior

Hybrid

Warsaw, Poland

14,500 - 17,000 PLN/mo

🏢 Summary: Full-time hybrid Software Engineer role focused on building responsive, AI-driven web applications for enterprise platforms using modern JavaScript technologies. The position involves developing high-quality React-based interfaces, applying TDD and CI practices, and collaborating within cross-functional Agile teams. Long-term B2B contract based in Warsaw with competitive salary. 🗂️ Requirements: 6+ years experience with JavaScript, 6+ years experience with TypeScript, Strong knowledge of design patterns in JavaScript, Proficiency in React with Redux, Experience with Next.js, Understanding of functional programming concepts, Strong knowledge of asynchronous programming, Experience with Git and branch management, Experience debugging front-end applications, Experience creating and integrating custom packages, Understanding of object-oriented programming principles, Practical experience with HTML5, Practical experience with CSS3, Experience in Agile environments, Ability to develop cross-browser compatible code 📃 Skills: JavaScript, TypeScript, React, Redux, Next.js, HTML5, CSS3, Git, TDD, CI, Agile 🏢 Description: 💰 Salary: 14,500-17,000 PLN/month 🌎 Hybrid from Warsaw, Poland 🕦 Full-time position, long-term ☑️ B2B We are looking for a Software Engineer to join our client, a technology company that builds AI-powered platforms and consulting solutions for enterprise operations, with a strong focus on the private capital sector. The company has over ten years of experience working with high-growth and PE-backed businesses, combining deep domain expertise with advanced technology to drive measurable results. Requirements: 6+ years of experience working with JavaScript and TypeScript Solid understanding of design patterns and how to apply them in JavaScript development. Proficiency in a modern front-end JavaScript framework such as React.js with Redux; experience with Next.js is an advantage. Familiarity with functional programming concepts. Strong grasp of asynchronous programming and its best practices. Knowledge of Git and experience with branch management. Experience troubleshooting front-end issues and using relevant debugging tools. Familiarity with creating and integrating custom packages. Good understanding of object-oriented programming principles and their use in JavaScript. Ability to perform effectively under pressure and meet strict deadlines. Practical experience with HTML5 and CSS3. Experience working within Agile development environments and practices. Strong communication and organizational abilities. Skilled in developing cross-browser compatible code. A Bachelor’s degree in Computer Science or a related field is preferred. Key Responsibilities: Creating and building responsive user interfaces using React. Applying and maintaining test-driven development (TDD) practices along with continuous integration processes. Working closely with a cross-functional team that includes project managers, analysts, and sales representatives to deliver high-quality, interactive products within deadlines. Promoting and implementing best practices in testing, accessibility, and performance optimization. Partnering with design, backend, QA, and product teams to develop reliable, user-focused solutions.

Technology

Harvey Nash Technology

MLops Ai Engineer

Senior

Remote

Łódź, Poland

140 - 160 PLN/hr

🏢 Summary: Senior Full Stack Software Engineer role focused on building and scaling a production-ready AI product, covering feature development, infrastructure, and client integrations. The position involves hands-on work with Python, DevOps/MLOps, and GenAI solutions, ensuring system reliability and production readiness. This is a remote contract role with expected extensions. 🗂️ Requirements: Strong Python development experience, DevOps expertise with CI/CD pipelines, MLOps experience with automated deployment and monitoring, Experience building agentic AI products, Experience with API integrations, Hands-on experience with GenAI/LLM, Ability to harden systems for production, Experience fine-tuning AI models, Experience with prompt engineering 📃 Skills: Python, CI/CD, DevOps, MLOps, GenAI, LLM, APIs, Automation, Deployment, Monitoring, Fine-tuning, Prompt-engineering 🏢 Description: Location : Remote with occasional visits to Łódź Employment type : 2 months initial contract - to be extended, B2B/Umowa Zlecenie Salary: up to 160zł/hour (B2B) Senior Software Engineer – AI Product (Full Stack) We’re looking for a Senior Software Engineer to help build and scale a production-ready AI product. This is a hands-on, full-stack role covering feature development, infrastructure, and client integration. What you’ll do Design, build, and deploy new features in Python Own DevOps/MLOps: CI/CD pipelines, automated model deployment, monitoring Integrate AI solutions into client-facing products Improve system reliability, performance, and production readiness Enhance AI models through fine-tuning and prompt engineering Contribute to short-term R&D initiatives and product innovation Build and evolve internal systems for model evaluation and performance tracking Must-have Strong Python development experience DevOps & MLOps expertise (CI/CD, automation, deployment) Experience building agentic AI products and API integrations Hands-on GenAI/LLM experience (classic ML not required) Proven ability to harden systems for production Nice to have Experience building model evaluation/monitoring systems Fine-tuning, prompt engineering, and performance optimization Details Contract extensions expected If you enjoy building real-world AI products end-to-end—from models to production—we’d love to hear from you.

Technology

New offer

DevsData LLC

Python Engineer

Mid

Hybrid

Warsaw, Poland

5,000 - 7,000 USD/mo

🏢 Summary: Full-time B2B opportunity for a Middle Python Engineer to build scalable backend systems and AI infrastructure for enterprise applications in a hybrid Warsaw setup. The role involves developing REST APIs, distributed systems, and cloud-based services while owning features through the full software lifecycle. Candidates will work in an AI-native environment focused on production-ready enterprise AI solutions. 🗂️ Requirements: 3-5 years commercial experience as Backend Engineer, Strong Python programming skills, Understanding of distributed systems, Experience with AWS, GCP, or Azure, Strong knowledge of SQL databases, Strong knowledge of NoSQL databases, Experience designing and supporting production-grade systems, Experience with full software lifecycle ownership, Ability to develop scalable backend services and REST APIs, Comfortable working in AI-native engineering environments 📃 Skills: Python, AWS, GCP, Azure, SQL, NoSQL, REST, TypeScript 🏢 Description: Python Engineer 💰 Salary: 5000-7000$ 🌎 Warsaw, Hybrid (1 day remote per week) 🕦 Full-time ☑️ B2B Contract We’re looking for a Middle Python Engineer for our client, which is an AI infrastructure company that helps large enterprises safely and effectively adopt AI in their daily operations. Rather than building general-purpose AI, our client creates a platform that connects AI to a company's internal knowledge, policies, workflows, and business rules. This enables AI to provide accurate answers and automate complex business processes instead of relying on generic responses or potentially inaccurate information. Their customers include well-known enterprise organizations such as Glovo, Nespresso, and HelloFresh, where AI is used to improve internal operations, customer support, and business efficiency. The company operates in the rapidly growing field of Agentic AI, focusing on building reliable, production-ready AI systems for enterprise environments. Requirements: 3-5 years of commercial experience as a Backend Engineer developing production-grade systems. Strong Python programming skills, with the ability to write clean, maintainable, and well-structured backend code. Good understanding of distributed systems. Hands-on experience with cloud platforms, such as AWS, GCP, or Azure. Strong knowledge of SQL and NoSQL databases, including schema and data model design. Experience owning features throughout the full software lifecycle, from design and implementation to deployment, monitoring, and production support. Comfortable working in an AI-native engineering environment. Nice to have: Exposure to agentic systems: AI agents, tool-calling, orchestration, retrieval, or LLM-backed infrastructure Working knowledge of TypeScript Responsibilities: Design, develop, and maintain scalable backend services, REST APIs, data pipelines, and background processing systems. Translate business and product requirements into technical solutions, evaluating architecture, trade-offs, and implementation approaches. Own features end-to-end, from technical design and development through deployment, monitoring, and ongoing production support. Build reliable, secure, and high-performance backend systems that support enterprise AI applications. Design efficient interfaces, data models, and service architectures that integrate seamlessly within the broader platform. Monitor, troubleshoot, and improve system reliability, observability, scalability, and performance in production environments. Collaborate closely with Product Managers, Frontend Engineers, and Platform/Infrastructure teams to deliver end-to-end product features. Write clear technical documentation, design notes, and architecture diagrams to support collaboration and knowledge sharing. Leverage AI-powered development tools to improve engineering productivity, automate repetitive tasks, and streamline development workflows. Participate in code reviews and design reviews, ensuring high engineering standards, maintainable code, and best practices.

Technology

New offer

RemoDevs

Senior Fullstack Developer (React + Node.js)

Senior

On-site

Warsaw, Poland

7,000 - 9,000 USD

🏢 Summary: Senior Full Stack Engineer role focused on building AI-powered enterprise product features across frontend and backend systems in a fully onsite Warsaw office. The position involves owning the full development lifecycle, collaborating with product and design teams, and improving performance, reliability, and user experience. The company offers a modern AI-focused engineering environment, B2B contract, stock options, and opportunities to work with enterprise-scale AI solutions. 🗂️ Requirements: Senior-level experience building production web applications, Frontend experience with React, Frontend experience with TypeScript or similar frameworks, Backend experience designing APIs and backend services, Experience working with full-stack architectures and data flows, Ability to make technical decisions balancing scope, quality, and delivery time, Security-focused mindset and experience handling sensitive data, Experience collaborating with engineering, product, and design teams, Experience using AI tools in software development workflows, Availability to work onsite in Warsaw 5 days a week 📃 Skills: React, TypeScript, Python, Node.js, APIs, AI, Claude, OpenAI, Codex, GitHub, Copilot 🏢 Description: About us We believe that businesses are moving toward AI-powered work, and we are building a platform for this future. Many AI agents cannot handle complex business tasks. We created a platform that organizes company policies, workflows, and business knowledge into one AI data model. This helps AI agents make accurate decisions and deliver reliable results at scale. We already work with enterprise customers such as Glovo, Nespresso, and HelloFresh. Our platform supports thousands of users and processes real production data. Customers trust us with important business knowledge because we provide a secure and reliable solution with SOC2 and HIPAA-ready security practices and strong integrations. Job description We are looking for a Senior Full Stack Engineer who enjoys building complete product solutions from start to finish. In this role, you will understand customer needs, design the right technical solution, build new features, and improve them after release. You will work across both frontend and backend, taking ownership of the whole development process — from the first idea to production. The position is based in Warsaw and requires working from the office. Responsibilities - Build and deliver product features across both frontend and backend. - Turn product ideas into practical technical solutions with the right scope and priorities. - Work across the full technology stack, including user interfaces, backend logic, APIs, and data flows. - Work closely with product managers and designers, even when requirements are still changing. - Improve usability, performance, reliability, and overall product quality. - Monitor applications after release, analyze logs and system data, and continue improving the product. - Use AI tools every day to improve development speed, workflows, and engineering processes. - Maintain high standards for code quality, testing, and long-term ownership. Requirements - Strong senior-level experience building and delivering production web applications. - Strong frontend skills with React, TypeScript, or a similar modern web framework. - Good backend experience designing APIs, backend services, and data flows. - Strong product thinking with the ability to improve user experience and simplify complex workflows. - Good judgment when making technical decisions and balancing scope, quality, and delivery time. - A security-focused approach and experience handling sensitive data. - Good communication skills and experience working with engineering, product, and design teams. - Experience using AI tools as part of your daily software development work. Nice to have - Experience building AI-powered products such as chat applications, search, recommendation systems, workflows, or AI agents. - Experience with Python, Node.js, or both. - Experience leading product areas with a high level of ownership. - Good understanding of web performance, accessibility, and production quality. What we offer - B2B contract and company stock options. - MacBook Pro. - Modern technology stack and the opportunity to contribute to open-source projects. - An AI-focused development environment with tools such as Claude Code, OpenAI Codex, and GitHub Copilot. Our values - Quality – We care about excellent work and high standards in everything we build. - Momentum – We take initiative, share ideas, and keep moving forward. - Accountability – We take responsibility for our work and give honest, respectful feedback. - Hard work – We believe success comes from teamwork, dedication, and consistent effort. - Learning agility – We stay curious, learn from mistakes, and continue improving. - Adapt and thrive – We welcome change and see challenges as opportunities to grow. - Win together – We work as one team, communicate openly, and support our shared goals.

Technology

DevsData LLC

Senior Algorithms Engineer (100% remote)

Senior

Remote

Warsaw, Poland

20,000 - 26,800 PLN/mo

🏢 Summary: Full-time remote role for a Senior Algorithms Engineer focused on designing and scaling advanced AI-driven video solutions. The position combines research and production work, building state-of-the-art computer vision and machine learning models and deploying them into robust cloud-based infrastructures. The engineer will own the end-to-end lifecycle of AI systems, from experimentation to global deployment. 🗂️ Requirements: Master’s degree in Computer Science, Electrical Engineering, or related field, 8+ years of software development experience, 4+ years of professional experience in Python, Expert-level experience with PyTorch, Expert-level experience with TensorFlow, Deep expertise in video data processing, Strong experience with computer vision libraries, Experience analyzing large-scale datasets, Experience building predictive behavioral models, Ability to independently design and implement complex AI solutions 📃 Skills: Python, PyTorch, TensorFlow, ComputerVision, DeepLearning, MachineLearning, VideoProcessing, DataAnalysis, PredictiveModeling, Cloud, DevOps, Backend, Docker, Kubernetes, Nomad, LLMs 🏢 Description: Senior Algorithms Engineer (100% remote) 💰 Up to $7,500 / Per Month 🌎 Fully Remote, EU-based ☑️ Full-time 🕦 B2B Contract We are seeking an AI Researcher & Engineer to join an innovative startup at the forefront of AI-powered video technologies. In this role, you will bridge research and production, designing advanced computer vision and machine learning solutions while building the infrastructure that scales these algorithms for global video platforms. You will have the autonomy to innovate, integrate, and optimize AI workflows across the entire tech stack. Requirements: Master’s degree in Computer Science, Electrical Engineering, or related field 8+ years of software development experience, including 4+ years in Python Expert-level hands-on experience with PyTorch and TensorFlow Deep expertise in video data processing and computer vision libraries Proven experience analyzing large-scale datasets and building predictive behavioral models Self-starter mindset with a passion for staying on the cutting edge of AI technologies Ability to independently research, design, and implement complex AI solutions from scratch Nice to Have: Experience with generative AI models Hands-on experience with containerization and orchestration (Docker, Kubernetes, Nomad) Responsibilities: Research & Innovate: Develop state-of-the-art CV/ML models leveraging deep learning, large language models, and vision-language models. Data Science & Analytics: Work with massive datasets to uncover patterns, perform behavioral analysis, and build predictive AI models. Infrastructure & Architecture: Build robust frameworks to deploy, debug, and maintain AI algorithms in cloud environments. End-to-End Engineering: Take ownership of the full engineering lifecycle, from backend development and DevOps to cloud infrastructure and production deployment. Continuous AI Evolution: Stay ahead of the AI curve, experimenting with new models, tools, and workflows daily to push the boundaries of what is possible Get to know DevsData: We are a technology consulting company and a recruitment agency, delivering software solutions to clients from Europe and the US. We work 100% remotely, in an international team, including people from Asia, London, or San Francisco. We employ people with experience in international corporations as well as students of the best technical and business universities. Find out more: https://devsdata.com/