Full Stack Developer

🏢 Summary: Full Stack Developer role in a hybrid model, focused on building and supporting AI-powered platforms for institutional investors using Java and Python in a microservices environment. The position involves end-to-end ownership of features, from analysis to production, within a small, autonomous team delivering scalable, high-performance systems. The role includes work on greenfield projects and exposure to AI, NLP, and data-driven solutions in global financial markets. 🗂️ Requirements: 5+ years of software development experience, Strong proficiency in Java, Strong proficiency in Python, Experience with Spring Framework, Experience with SQL and NoSQL databases, Experience with microservices architecture, Experience with event streaming technologies, Understanding of SOLID and Clean Code principles, Understanding of DDD and BDD, Ability to support and troubleshoot production systems, English proficiency (written and spoken) 📃 Skills: Java, Python, Spring, SQL, NoSQL, PostgreSQL, MongoDB, Microservices, EventStreaming, JavaScript, Vue, AI, NLP, MachineLearning, DataScience, SOLID, DDD, BDD 🏢 Description: Oto propozycja dynamicznego, atrakcyjnego ogłoszenia pod tę rolę, z wyróżnionymi kluczowymi komponentami: Full Stack Developer Kraków (Hybrid, 2 days in office) Are you passionate about full lifecycle software development and eager to work on cutting-edge AI-powered platforms for global markets? We are looking for a Full Stack Developer to join our AI Markets team within Corporate & Institutional Banking Technology (CIB) , delivering real impact for institutional investors worldwide. Why this role is exciting: You'll be part of a small, autonomous team (4–6 engineers) with a dedicated Product Owner , taking business requirements and delivering iterative solutions to production. You'll own your code end-to-end – “if you build it, you support it” is our mantra. Work on greenfield projects leveraging Java, Python , and optionally JavaScript/Vue , contributing to highly scalable, high-performance systems . Collaborate in a hybrid, global environment with cross-functional teams across multiple locations. Explore AI, NLP, Machine Learning, and data-driven solutions applied to real-time financial market insights. Your Responsibilities: Design, develop, and maintain modern web applications using Java, Python, and optionally JavaScript/Vue . Take ownership of stories from analysis to production , ensuring quality, maintainability, and performance . Identify and manage technical debt , balancing new features with system health. Pair with team members and contribute to code reviews, technical discussions, and solution design . Support production and troubleshoot issues – the team builds it, the team supports it . What we are looking for: 5+ years of development experience , with strong Java and Python skills . Deep understanding of SOLID, Clean Code, DDD, BDD principles. Experience with Spring Framework and SQL/NoSQL databases (PostgreSQL, MongoDB). Prior experience with microservices and event streaming technologies . Ability to teach, mentor, and collaborate with team members to design new solutions. Strong communication skills in English (written and oral). Experience in machine learning, NLP, AI, or Data Science is a plus. Optional: Prompt Engineering, LangChain, LangGraph, Clean Architecture experience. What you can expect from us: We embrace flexible, hybrid working , hybrid teams, and self-organising teams . Daily collaboration, no strict sprints – we favor flow, frequent low-risk releases . Exposure to a wide technology stack : Java, Python, JavaScript, Clojure, Kotlin, Bash, React, Vue – and openness to learn new technologies . Be part of a 350-strong global department across Hong Kong, China, India, Poland, UK, USA, and Canada. Opportunity to rotate across teams and work on multiple impactful projects. A chance to contribute to AI-driven platforms transforming how investors interact with markets . Recruitment process: 30 min: Conversation about the project, ways of working, and candidate introduction. 1h 30 min: Technical interview with live coding , IDE-ready session. If you are curious, passionate about technology, and love to experiment while delivering value, this is the place for you! Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Full Stack Developer role in a hybrid model focused on building and maintaining modern web applications using Java and React. The position involves full software development lifecycle participation, including design, development, CI/CD, and production support in an Agile/DevOps environment. The offer provides engagement in impactful digital and financial platforms within cross-functional teams. 🗂️ Requirements: Strong proficiency in Java, Strong proficiency in React, Strong proficiency in HTML, Experience in Agile environments, Experience in DevOps practices and CI/CD, Solid software engineering fundamentals, Ability to participate in full software development lifecycle, Fluent English, Availability to work hybrid in Kraków (2 days per week in office) 📃 Skills: Java, React, HTML, CI/CD, Agile, DevOps, Microservices, PostgreSQL, Linux, Clojure, Kotlin, Python, Rust 🏢 Description: Location: Kraków (hybrid - 2 days per week in the office) Contract Type: B2B / Contract Working Time: Full-time Rate: 180–230 PLN/h About the Role We are looking for a Full Stack Developer to join a dynamic digital technology team. You will be part of a collaborative, fast-paced environment, participating in the full software development lifecycle: design, development, testing, deployment, and production support. You will work closely with product owners and cross-functional teams, building robust web applications, modern tools for business users, and next-generation digital platforms. This is a great opportunity to work on impactful projects across the organization while continuously learning new technologies. Responsibilities Design, develop, and maintain web applications using Java, React, and HTML. Collaborate with product owners and engineers to gather requirements and deliver high-quality solutions. Contribute to Agile and DevOps practices, including CI/CD pipelines and production support. Implement features leveraging domain knowledge in financial services or related products. Participate in code reviews, technical discussions, and sprint planning. Apply analytical and engineering principles to solve complex problems efficiently. Support applications and related services, ensuring reliability and performance. Communicate effectively in English, both verbally and in writing. Requirements Strong proficiency in Java, React, and HTML. Solid software engineering fundamentals and problem-solving skills. Experience in Agile and DevOps environments. Willingness to learn new programming languages and technologies. Excellent communication and teamwork skills. Self-motivated, proactive, and able to take ownership of assigned tasks. Fluent in English. Nice-to-Have Experience with financial platforms, trading systems, or banking products. Exposure to microservices architecture, PostgreSQL, or Linux environments. Knowledge of other languages such as Clojure, Kotlin, Python, Rust. Why Join Work on innovative digital platforms used by teams across the organization. Participate in full software lifecycle, including design, development, and production support. Collaborate with highly skilled, cross-functional teams in a hybrid work environment. Access to modern technologies and continuous learning opportunities. Real impact on business-critical systems and end-user solutions. Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska.

🏢 Summary: Full-time contract role for an experienced FullStack Developer to build and maintain scalable, AI-driven financial applications in a global Agile team. The position covers the full software development lifecycle, including design, development, testing, deployment, and production support in a "you build it, you support it" model. Work is hybrid-based in Kraków with strong ownership and continuous delivery practices. 🗂️ Requirements: Minimum 5 years of professional software development experience, Strong knowledge of Java, Strong knowledge of Python, Hands-on experience with Spring Framework, Understanding of SOLID principles, Understanding of Clean Code principles, Understanding of DDD, Understanding of BDD, Experience with SQL databases, Experience with NoSQL databases, Familiarity with microservices architecture, Experience with event-driven systems or streaming technologies, English proficiency (written and spoken) 📃 Skills: Java, Python, Spring, SQL, NoSQL, PostgreSQL, MongoDB, Microservices, Streaming, SOLID, DDD, BDD, CleanCode, JavaScript, Vue.js, AI, MachineLearning, NLP, DataScience, LangChain, LangGraph 🏢 Description: FullStack Developer 📍 Kraków, Poland (hybrid – min. 2 days/week in the office) 🕒 Full-time | Contract role About the Role We are looking for an experienced FullStack Developer to join a global technology team delivering innovative digital solutions in the financial domain. In this role, you will work closely with a Development Manager and a small, cross-functional team to build and maintain scalable applications. You will be involved in the entire software development lifecycle – from analysis and design to deployment and production support. This is a hands-on role in a collaborative environment where teams take full ownership: “you build it, you support it.” Your Responsibilities Work in a small Agile team (4–6 people) with a dedicated Product Owner Translate business requirements into user stories and deliver them iteratively to production Design and implement high-quality, scalable solutions aligned with technical standards Participate in all stages of the development lifecycle, including testing and production support Identify and manage technical debt, balancing it with new feature development Collaborate closely with team members through pairing and knowledge sharing Contribute to a culture of continuous improvement and experimentation Required Skills & Experience Minimum 5 years of professional software development experience Strong knowledge of Java and Python Hands-on experience with Spring Framework Solid understanding of software engineering principles ( SOLID, Clean Code, DDD, BDD ) Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB) Familiarity with microservices architecture Experience with event-driven systems / streaming technologies Strong communication skills in English (written and spoken) Ability to collaborate, mentor, and support other engineers Nice to Have Experience with JavaScript (Vue.js) Background in AI / Machine Learning / NLP / Data Science Knowledge of: Prompt Engineering LangChain / LangGraph Clean Architecture What You Can Expect Work in a globally distributed engineering organization Small, self-organizing teams with strong ownership Continuous delivery approach (no traditional sprints – focus on flow and frequent releases) Opportunity to work on cutting-edge AI-driven solutions Exposure to modern technologies and experimentation with new tools A collaborative culture where learning, pairing, and knowledge sharing are encouraged Benefits: Multisport Card and Luxmed Who We’re Looking For We value engineers who: Are curious, adaptable, and open to experimentation Enjoy solving complex problems with technology Take ownership and responsibility for their work Are comfortable stepping outside their specialization when needed See failure as a learning opportunity Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: B2B contract role for a Senior/Regular+ Full Stack Developer to build and maintain advanced financial market platforms using Java and Python. The position involves end-to-end development of microservices-based solutions with real-time data processing, following a "you build it, you run it" approach. Work is hybrid from Cracow with strong focus on code quality, architecture, and production ownership. 🗂️ Requirements: Minimum 5 years of commercial development experience, Strong hands-on experience with Java, Strong hands-on experience with Python, Extensive experience with Spring Framework, Solid understanding of SOLID principles, Knowledge of Clean Code practices, Experience with DDD, Experience with BDD, Experience with SQL databases, Experience with NoSQL databases, Hands-on experience with microservices architecture, Experience with event streaming technologies, Ability to design systems, Very good written and spoken English 📃 Skills: Java, Python, Spring, SQL, NoSQL, PostgreSQL, MongoDB, Microservices, EventStreaming, SOLID, DDD, BDD, CleanCode 🏢 Description: Full Stack Developer (Java / Python) – B2B Contract type: B2B Rate: 170–220 PLN/hour Working time: Full-time Work model: Hybrid ( on-site presence at least 2 days per week in Cracow) Seniority level: Senior / Regular+ About the project You will join a technology team building advanced solutions for global financial markets, leveraging technologies such as NLP, AI, and real-time data processing. The platform enables users to interact with complex market data in a fast, intuitive, and intelligent way. The team works end-to-end across the full software development lifecycle — from requirements analysis and development to testing and production support. We follow the principle: “you build it, you run it.” Responsibilities Work in a team of 4–6 engineers with a dedicated Product Owner Take business requirements, break them down into user stories, and deliver them iteratively to production Design and implement solutions in line with architectural and technology guidelines Actively identify and address technical debt while balancing it with new feature development Provide production support for delivered solutions Collaborate closely with other engineers, including pair programming Required skills & experience Minimum 5 years of commercial development experience Strong hands-on experience with Java and Python Extensive experience with Spring Framework Solid understanding of SOLID principles, Clean Code, DDD, and BDD Experience with SQL and NoSQL databases (e.g. PostgreSQL, MongoDB) Hands-on experience with microservices architecture Experience with event streaming technologies Ability to design systems and mentor other engineers Very good written and spoken English communication skills Nice to have Experience in Machine Learning, NLP, AI, or Data Science JavaScript (Vue) Clean Architecture Prompt Engineering LangChain, LangGraph How we work Self-organising teams, no traditional sprints — we focus on continuous flow Frequent, low-risk deployments to production Strong emphasis on code quality, collaboration, and knowledge sharing Flexible approach to technology — outcomes matter more than rigid frameworks Recruitment process (1 stage) ~30 minutes: discussion about the project and our way of working + short candidate introduction ~1.5 hours: technical interview with live coding (candidate is expected to have their own IDE ready) Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Fullstack Developer role in the financial sector, responsible for designing and developing scalable Java-based applications across the full SDLC. The position involves backend and frontend development, UI improvements, DevOps activities, and production support in a hybrid work model. The role also includes architecture participation, database optimization, and service lifecycle management. 🗂️ Requirements: 5+ years of experience in Java production application development, Experience in frontend development (React preferred), Proficiency in Java and WebAPI development, Experience in building and maintaining scalable backend services, Strong database design and SQL skills, Hands-on experience with PostgreSQL and advanced T-SQL, Experience with CI/CD and DevOps practices, Experience across full SDLC, Fluent English 📃 Skills: Java, React, WebAPI, PostgreSQL, SQL, T-SQL, CI, CD, DevOps, SDLC 🏢 Description: For our Client we are looking for an experienced Fullstack Developer to participate in all parts of the development life cycle including analysis, testing and production support. 📍 Location : Kraków, hybrid work model – 2 days per week in the office, 3 days remote 🕒 Cooperation model: [Full-time / B2B] 📍 Project for our Client from the financial sector Key Responsibilities: Participating in software architecture design Leading UI changes and improvements to increase overall UX and application stability Implementing solutions according to best Design Patterns Analyze requirements to fully understand solutions and recommend improvements Create comprehensive and clear documentation for developed solutions Develop and work on application prototypes to validate concepts and designs Management of Changes through the Service management lifecycle Active involvement in Automation and improvement of Service Management lifecycle Provide exceptional customer support by addressing and resolving issues promptly Communicate effectively with customers to understand their needs and provide appropriate solutions Requirements: 5+ professional experience in production applications development in Java including front-end development (preferably React) with a strong ability to troubleshoot, resolve, and prevent issues in a high-pressure environment Proficiency in Java and Web API development, with a solid understanding of building and maintaining scalable, secure, and efficient backend services Expertise in database design and SQL skills, particularly with PostgreSQL including advanced T-SQL scripting, query optimization, and performance tuning Comprehensive experience in a DevOps activities like continuous integration, continuous delivery Experience with the Software Development Life Cycle (SDLC), including requirements gathering, design, development, testing, deployment, and maintenance Fluent English Benefits: Private medical care (Luxmed) Multisport card Collaborative team culture and modern tech stack Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Fullstack Developer role in the financial sector focused on delivering end-to-end features across the development lifecycle, including analysis, design, testing, and production support. The position involves iterative delivery of business requirements, backend collaboration, and maintaining a balance between new features and technical debt. Hybrid work model with regular on-site presence in Kraków. 🗂️ Requirements: 5+ years commercial experience as Fullstack Developer, Strong experience with JavaScript, Strong experience with CSS, Experience with NodeJS (client and server), Knowledge of Accessibility standards and implementation, Working knowledge of Unix, Understanding of databases from consumer perspective, Knowledge of HTTP APIs and RESTful services, Basic knowledge of Java or Kotlin, Fluent English 📃 Skills: JavaScript, CSS, NodeJS, Unix, REST, HTTP, Java, Kotlin, Databases, Accessibility 🏢 Description: For our Client we are looking for an experienced Fullstack Developer to participate in all parts of the development life cycle including analysis, testing and production support. 📍 Location : Kraków, hybrid work model – 2 days per week in the office, 3 days remote 🕒 Cooperation model: [Full-time / B2B] 📍 Project for our Client from the financial sector Key Responsibilities: Work within a team of developers with a dedicated product owner Take a business requirement, divide it up into stories and deliver each story iteratively to production Product support is integral to the role Identify areas of technical debt, ensure a healthy balance of tech debt and new functionality is prioritised and worked on For new items you need to design the solution and ensure that it follows technology guidelines and constraints Pairing with other members of the team Willing to work also with backend Requirements: 5+ years of commercial experience in similar position Demonstratable experience of JavaScript, CSS & Node JS (client & server) Awareness of best Accessibility practices and knowledge how to implement them Working knowledge of unix Must understand databases from a consumer point of view Knowledge of HTTP APIs e.g. RESTful APIs Basic Java or Kotlin knowledge Nice to have UX knowledge and ability to propose improvements to business requirements Fluent English Benefits: Private medical care (Luxmed) Multisport card Collaborative team culture and modern tech stack Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Java Full Stack Developer role focused on developing and supporting a global platform within a distributed engineering environment. The position combines backend and frontend development with DevOps and production support responsibilities. It involves ownership of application enhancements, incident resolution, and end‑to‑end service stability. 🗂️ Requirements: Strong experience with Java 21, Strong experience with Spring Boot 3.x, Experience with microservices architecture, Experience with REST APIs and JSON, Frontend development experience with React JS, Knowledge of PostgreSQL, Experience with messaging systems (MQ or Solace), Working knowledge of Kubernetes, Working knowledge of Redis, Understanding of application security principles, Experience with observability tools, Experience with DevOps tools, Ability to work in DevOps model across development and support, Experience in production support and incident resolution 📃 Skills: Java, Spring, Microservices, REST, JSON, React, PostgreSQL, MQ, Solace, Kubernetes, Redis, Grafana, Splunk, Logstash, Prometheus, OpenTelemetry, Zipkin, Jenkins, Ansible 🏢 Description: Senior Java Full Stack Developer 📍 Location: Kraków, Poland (hybrid: 2 days in the office , 3 days remote) 📄 B2B Contract: 190 – 230 PLN / hour We are looking for a Senior Java Full Stack Developer to join the Global HMS engineering team within Markets & Securities Services IT. In this role, you will contribute to the development and support of a key global platform, working closely with business stakeholders and distributed engineering teams. You will take ownership of application enhancements, production stability, and end‑to‑end support activities, ensuring high service quality and timely delivery. This position is ideal for someone who enjoys combining hands‑on development with operational responsibility, thrives in a global environment, and is comfortable working across backend, frontend, DevOps, and support streams. Key Responsibilities: Deliver application enhancements and provide day‑to‑day support within a global engineering setup. Collaborate with business stakeholders to plan and execute deliveries, ensuring milestones are met. Lead and resolve critical production incidents, driving fixes through to completion. Own end‑to‑end production support: handling tickets, queries, and operational requests. Diagnose and resolve application issues to maintain performance, reliability, and usability. Create and maintain technical documentation, best‑practice guidelines, and process artefacts. Act as an SME for service functionality, constraints, and operational considerations. Identify and escalate risks, issues, and dependencies during agile delivery. Continuously develop skills through training, certifications, and hands‑on learning. Requirements: Strong experience with Java 21 , Spring Boot 3.x , microservices , REST APIs , JSON . Frontend experience with React JS . Solid understanding of PostgreSQL and messaging technologies ( MQ/Solace ). Working knowledge of Kubernetes , Redis , and application security principles. Exposure to observability and DevOps tooling: Grafana , Splunk , Logstash , Prometheus , OpenTelemetry , Zipkin , Jenkins , Ansible . Strong communication skills and ability to collaborate across distributed teams. High responsiveness and ownership mindset, especially in production support contexts. Ability to produce clear, concise documentation and technical deliverables. Comfortable working in a DevOps model, contributing across analysis, testing, and support. Nice to Have: Basic Python , Activiti (workflow engine), JMock/Mockito , shell scripting. Experience with Selenium or Serenity . Background in workflow‑based applications. What We Offer: Long‑term cooperation in a global engineering environment. Real influence on service quality, operational stability, and delivery processes. Work in a multicultural, distributed team. Private medical care (LuxMed) and Multisport card. Hybrid model: 2 days per week in the Kraków office . Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Full-Stack Developer role focused on building and maintaining backend services in Python (FastAPI) and frontend applications in React.js within an enterprise environment. The position involves developing REST APIs, managing databases, containerizing applications, and deploying to AWS using modern DevOps practices. Hybrid work model with collaboration on scalable, production-grade systems. 🗂️ Requirements: Commercial experience with Python, Experience with FastAPI, Hands-on experience with React.js, Strong knowledge of SQL databases, Strong knowledge of NoSQL databases, Experience with Docker, Experience with Kubernetes, Basic knowledge of AWS, Experience designing and developing REST APIs 📃 Skills: Python, FastAPI, React, SQL, NoSQL, PostgreSQL, Redis, PGVector, Docker, Kubernetes, AWS, REST, CI/CD 🏢 Description: Full-Stack Developer (Python / React) Location: Kraków, Poland Work Model: Hybrid (6 days per month in the office) About the Role We are looking for an experienced Full-Stack Developer to join our enterprise team and support the development and maintenance of modern backend and frontend applications. You will work with a cutting-edge technology stack in an international environment. Key Responsibilities Design, develop, and maintain backend services using Python (FastAPI) Build and enhance frontend components using React.js Design and develop REST APIs Work with SQL and NoSQL databases (PostgreSQL, Redis, PGVector) Containerize applications and manage deployments using Docker and Kubernetes Deploy and maintain applications in AWS Participate in CI/CD processes and automated testing Collaborate with the team on new features and system integrations (Optional) Contribute to GenAI initiatives (LangChain, OpenAI API) Requirements Proven commercial experience with Python and FastAPI Hands-on experience with React.js Strong knowledge of SQL and NoSQL databases Experience working with Docker and Kubernetes Basic knowledge of AWS Nice to Have Experience or interest in GenAI / LLM technologies Familiarity with CI/CD pipelines and automated testing What We Offer Benefits package including Multisport card and private healthcare Hybrid work model with flexible working hours Opportunity to work in an international environment with a modern tech stack Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

🏢 Summary: Full Stack Engineer role focused on designing, developing, and maintaining secure microservices-based solutions in a FinTech environment, using Python and modern frontend technologies. The position involves building data pipelines, deploying containerized services through CI/CD, and ensuring system reliability and security in a regulated setting. Hybrid work model with strong emphasis on DevSecOps and automation. 🗂️ Requirements: Extensive experience in Python web development (FastAPI, Flask or Django), Experience building data pipelines in Python (Pandas, Numpy, Airflow or Luigi), Strong knowledge of microservices architecture and CQRS, SAGA, event sourcing, Experience with Docker and Kubernetes, Experience with CI/CD tools (Jenkins or GitLab), Strong Linux system administration skills, Understanding of networking concepts (TCP/IP, DNS, Firewalls, Subnetting), Proficiency with Git and branching strategies, Frontend development experience (HTML, CSS, JavaScript), Strong SQL skills with complex queries, Experience writing automated tests (unit, integration, functional), Experience working in Agile and DevSecOps environments 📃 Skills: Python, FastAPI, Flask, Django, Pandas, Numpy, Airflow, Luigi, Docker, Kubernetes, Jenkins, GitLab, Linux, TCP/IP, DNS, Git, HTML, CSS, JavaScript, SQL, React, Kafka, RabbitMQ, Terraform, AWS, GCP, Azure, Prometheus, MongoDB, PostgreSQL, MSSQL 🏢 Description: FullStack Engineer (Python, JavaScript, React) Location: Kraków (hybrid model – 2 days per week from the office) Industry: FinTech Contract type: B2B About the Role As a Full Stack Engineer, your responsibilities will include the following: Working with and support your pod’s Product Owner and Development Lead in designing, developing and delivering software solutions that meet stakeholder requirements. Working with Cybersecurity experts in understanding and refining requirements, delivering on features iteratively, whilst also proposing new technologies and solutions to help keep the bank secure. Adhering to the team’s design and development patterns, and in collaboration with the development lead actively identifing bottlenecks and to improve software development efficiencies. Adhering to the team’s governance procedures surrounding requirements intake, release and incident management, and actively contributing towards further streamlining processes (through automation). Ensuring the operability of existing services, including L2/L3 troubleshooting, bug fixing, and writing automated test cases and any further technical documentation needed to support delivered code. Undertaking peer reviews and leading by example for junior developers in the team. Requirements Able to demonstrate extensive Python web development experience, using frameworks such as FastAPI (being the preference), Flask and/or Django. Experience developing data pipelines, primarily in Python, using libraries such as Pandas, Numpy, and tools such as Airflow, Luigi, etc. A strong understanding of microservice architectures and be knowledgeable on the implementation of concepts such as CQRS, SAGA and event sourcing. Experience building and deploying services to containers, using tools such as Docker and Kubernetes. Experience building and deploying services through CICD pipelines, with hands-on experience using tools such as Jenkins, Gitlab, etc. Strong sysadmin skills in Linux, coupled with a solid understanding of computer systems and networks in general, e.g. TCP/IP, DNS, Firewalls, Subnetting, etc. Proficient with Git and a working familiarity of several branching strategies such as GitFlow, Trunk based, etc. Good understanding and reasonable experience in frontend development, at a minimum using languages such as HTML, CSS, JavaScript. Strong SQL programming skills and be able to construct complex queries. Demonstrate a test-driven mindset, backed by experience developing automated tests cases, be it unit, integration, functional and non-functional tests. Good knowledge of agile and DevSecOps delivery processes within the context of working in a highly regulated environment and be comfortable using tools such as Jira and Confluence. Articulate, with very good verbal and written communication skills. This is essential as you’ll be part of a global team consisting of engineers and non-engineers alike. Able to demonstrate an ability to work and lead in a fast paced, team focused environment with a proven track record of delivering and completing assigned tasks as an individual, and as a team. Demonstrate a willingness to continuously learn and share learnings with others. Our architecture is constantly evolving in line with new technologies being introduced as well as emerging threats. Nice to Have Cybersecurity related experience would be highly advantageous, be it working with automated application security testing tools (e.g. SAST, DAST), performing Penetration Tests, Fuzz testing and/or any threat detection and exploitation techniques. Strong experience building, deploying and operating infrastructure to a major cloud platform, such as AWS, GCP, Azure and/or Ali, using tools such as Terraform to provision and manage infrastructure as code, operational monitoring tools such as Prometheus, and service mesh tools such as Anthos. Strong frontend development experience, preferably in a JavaScript based language/framework such as React. In addition, experience developing and/or integrating with customer analytics products such as Matomo, and any further design and/or UX experience would be highly advantageous. Strong database administration / architecture experience, working with several relational database systems such as MSSQL, Postgres, as well as non-relational such as Mongo. Coupled to this, you will also have experience managing databases in a loosely coupled environment, with very strong performance and tuning skills. Experience working with Message Queue systems, such as Kafka, Rabbit, etc. What’s Offered Hybrid work model with flexibility Private medical care Multisport card Flexible working hours Opportunity to build a high-impact platform used across a global organization Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Senior Full Stack Developer role focused on designing, building, and supporting high-performance web applications using React and Java. The position involves end-to-end ownership of features, architectural decision-making, and working within Agile and DevOps environments. The role also includes maintaining reliable, scalable systems in the FX and banking domain. 🗂️ Requirements: Extensive experience in full stack development, Strong expertise in Java, Strong expertise in React, Strong knowledge of HTML, Experience in Agile environments, Experience in DevOps-oriented environments, Experience designing and supporting high-performance web applications, Ability to make architectural decisions, Experience with CI/CD pipelines 📃 Skills: Java, React, HTML, Agile, DevOps, CI/CD, Microservices, PostgreSQL, Linux 🏢 Description: Senior Full Stack Developer We’re looking for a Senior Full Stack Developer to join our team and help shape the next generation of our products. Reporting to the Development Manager, you’ll take real ownership of features and systems, working hands-on across the entire development lifecycle — from early design decisions to production support. This is a hybrid role, with work from our Kraków office 1–2 days per week. What you’ll be doing: Leading the design, development, and evolution of high-performance web applications using React, Java, and HTML. Owning features end-to-end, from requirements and technical design through delivery and production support. Partnering closely with product owners and engineers to define solutions that balance business needs with long-term technical health. Applying deep domain knowledge in FX and banking to build scalable, business-critical functionality. Driving best practices in Agile delivery, DevOps, and CI/CD pipelines. Tackling complex technical challenges and making sound architectural decisions. Supporting and improving live services with a strong focus on reliability, performance, and quality. Actively contributing to sprint planning, code reviews, and technical discussions — and raising the bar for the team. What we’re looking for: Extensive experience as a Full Stack Developer with strong expertise in Java, React and HTML. A solid software engineering background and an engineering-led approach to problem solving. Proven experience working in Agile teams and DevOps-oriented environments. Ability to work independently, make technical decisions, and take full ownership of the systems you build. Excellent communication skills and the confidence to collaborate with both technical and non-technical stakeholders. A proactive mindset — you spot problems early and drive improvements without being asked. Nice to have: Experience with financial platforms or trading systems. Hands-on exposure to microservices architecture, PostgreSQL, and Linux environments. Previous experience mentoring other engineers or influencing technical direction. Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.