Senior Software Engineer (React) (She/He/They)

🏢 Summary: Software Engineer role focused on end-to-end development of B2B and B2C SaaS platforms in the cybersecurity domain. The position involves building secure, scalable frontend and backend solutions using React, TypeScript, NestJS, and Node.js. You will contribute to API development, UI implementation, testing, and code quality within an agile environment. 🗂️ Requirements: Based in Poland, 2+ years of software engineering experience, Experience with JavaScript and TypeScript, Experience with HTML5 and CSS3, Experience with React, Experience with NestJS and Node.js, Experience building REST APIs, Familiarity with Git, Ability to write unit tests, Experience with testing frameworks, Understanding of Agile methodology, Strong computer science fundamentals, Good written and spoken English 📃 Skills: JavaScript, TypeScript, HTML5, CSS3, React, NestJS, Node.js, REST, Git, Mocha, Jest, Agile, AzureDevOps, Slack 🏢 Description: CAPCO POLAND *We are looking for Poland based candidate. Capco is a fully independent, global management and technology consultancy. For 25 years we have combined innovative thinking with deep industry knowledge to deliver business consulting, digital transformation and technology services to Finance and Energy markets. Our collaborative and efficient approach helps clients reduce costs and manage risk and regulatory change while increasing revenues. We are thinkers, innovators, and disruptors. We are small enough to care but large enough to matter. Role Overview As a Software Engineer you will be involved in end-to-end development for our B2B and B2C SaaS platforms. You’ll work with React and TypeScript on the frontend, alongside NestJS and Node.js on the backend, partnering closely with senior engineers and the Technical Lead Engineer. Your focus will be on delivering secure, scalable, and user-focused solutions. This role offers strong opportunities for professional growth while contributing to products that protect millions of small businesses and consumers in the cybersecurity space. How you will get the job done Write high quality, maintainable, and well-tested code. Implement front-end UI components using TypeScript and React. Implement RESTful API endpoints using TypeScript, NestJS, and Node.js. Participate in peer code reviews to maintain code quality and follow engineering best practices. Collaborate with developers to build reusable code and components. Follow software security requirements and secure coding practices. Leverage modern developer tools (including AI-assisted tools) to enhance productivity. Skills and experience you will need 2+ years of experience in software engineering. Experience writing code in JavaScript/TypeScript, HTML5, CSS3. Experience with front-end technologies and frameworks, preferably React. Experience with NestJS, Node.js, and API development. Strong computer science fundamentals and problem-solving/analytical skills. Familiarity with version control systems (e.g., Git). Understanding of agile software development lifecycle. Ability to write unit tests. Experience with testing frameworks such as Mocha, Jest, etc. Strong communication skills — able to explain technical decisions clearly. Good written and spoken English proficiency is required; this role involves regular communication with US-based stakeholders via Slack, Azure DevOps, and video calls. We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. ONLINE RECRUITMENT PROCESS STEPS Screening call with Recruiter Technical Interview Client Interview Feedback/Offer We have been informed of several recruitment scams targeting the public. We strongly advise you to verify identities before engaging in recruitment related communication. All official Capco communication will be conducted via a Capco recruiter.

🏢 Summary: Offer for an experienced React Developer to design and deliver modern, scalable frontend solutions in agile, client‑facing consulting projects. The role involves building high‑quality web applications, shaping frontend architecture, and collaborating with cross‑functional teams. Ideal for a senior frontend professional with strong React expertise and full lifecycle ownership. 🗂️ Requirements: 6+ years of software development experience, Strong hands-on experience with React.js, Excellent knowledge of JavaScript, Excellent knowledge of TypeScript, Experience building complex component-based frontend applications, Understanding of modern frontend development practices, Experience integrating REST APIs, Experience working in Agile (Scrum/Kanban) environments, Ability to translate business requirements into technical solutions 📃 Skills: React, JavaScript, TypeScript, REST, Scrum, Kanban, HTML, CSS 🏢 Description: CAPCO POLAND *We are looking for Poland based candidate. About Capco Capco is a global management and technology consultancy specialising in the financial services and energy industries. We help our clients succeed by combining deep domain expertise with innovative technology solutions. At Capco, you’ll join a collaborative and inclusive culture where your individuality is valued, your ideas are heard, and your career development is actively supported. The Role As a React Developer , you will play a hands‑on role in designing and delivering modern, scalable frontend solutions for leading clients. Working in cross‑functional agile teams, you’ll contribute to high‑impact projects, influence frontend best practices, and help shape user‑centric digital experiences in a consulting environment. This role is ideal for an experienced frontend professional who enjoys combining strong technical skills with close collaboration across teams and stakeholders. What You’ll Do Design, develop, and maintain high‑quality web applications using React.js Build scalable, reusable components using JavaScript and TypeScript Take ownership of frontend solutions across the full development lifecycle Collaborate closely with UX/UI designers, backend developers, and product owners Translate business requirements into robust technical solutions Contribute to frontend architecture decisions and development standards Conduct code reviews and support the growth of other developers Deliver client‑facing solutions in agile delivery teams What We’re Looking For 6+ years of experience as a Software Developer Strong, hands‑on experience with React.js Excellent knowledge of JavaScript and TypeScript Proven experience building complex, component‑based frontend applications Solid understanding of modern frontend development practices and REST APIs Experience working in agile environments (Scrum / Kanban) Strong communication skills and a collaborative mindset Ability to work effectively in a client‑focused consulting environment Why Join Capco? Opportunity to work on innovative, high‑impact projects for top‑tier clients Clear career progression and continuous learning opportunities Inclusive, diverse, and collaborative culture Hybrid working model offering flexibility Competitive compensation and benefits package Strong local presence within a global consultancy We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. ONLINE RECRUITMENT PROCESS STEPS Screening call with Recruiter Technical Interview Client Interview Feedback/Offer We have been informed of several recruitment scams targeting the public. We strongly advise you to verify identities before engaging in recruitment related communication. All official Capco communication will be conducted via a Capco recruiter.

🏢 Summary: Lead Software Engineer role focused on building and enhancing a strategic risk and P&L platform for Financial Markets within an investment banking environment. The position involves designing and developing scalable, robust, and fault-tolerant rich desktop applications using modern engineering practices. The role also includes ownership of high-quality code delivery, test automation, and production support in an Agile setup. 🗂️ Requirements: 12+ years of C# development experience, Strong experience with WPF and .NET for rich desktop applications, Experience in investment banking IT, Experience with multithreading and asynchronous programming, Experience with MVVM architecture, Experience with Dependency Injection, Experience with REST APIs and message queues, Experience with unit testing and test-driven development, Experience with CI/CD pipelines, Experience working in Agile/Scrum teams, Poland-based candidate 📃 Skills: C#, WPF, .NET, TPL, Rx, MVVM, Prism, Unity, LINQ, REST, ActiveMQ, DevExpress, Infragistics, OOP, NUnit, Moq, TDD, BDD, UIAutomation, AzureDevOps, CICD, Agile, Scrum, VisualStudio, ReSharper 🏢 Description: *We are looking for Poland based candidate. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. PROJECT OVERWIEW: The team is working on Client's strategic risk and Profit and Loss platform for Financial Markets. The development team is a world class technology group in the bank to provide technical solutions to support the bank’s Financial Markets business as well as support requirements from other projects with a wider scope such as regulatory books of work. We bring a deep understanding of the market, a scientific approach, and innovative technologies to bear on the challenges of profitable trading in the world's highly competitive environment. ROLE OVERVIEW: We're looking for a Lead Software Engineer who will play a strategic role in the implementation of highly visible strategic programs with the primary responsibilities around building components within the risk platform. Any developed solution must be scalable, robust and fault tolerant catering to the existing and future business needs in a timely manner. In addition, they will be expected to develop innovative solutions with a view to these being released quickly to gain feedback before advising on the full scale roll out. KEY RESPONSIBILITIES: Working closely with the Development Manager, Project Manager, and a team of developers to deliver quality features and enhancements to the internal business users. Writing robust code along with a high-level of test coverage. Designing smart and scalable solutions following the bank standards. Developing, preparing and maintaining system documentation, including program descriptions and operational procedures. Acting as the second line of support during production problems. REQUIRED SKILLS & QUALIFICATIONS: 12+ years of C#/WPF/.NET development experience building performance critical rich desktop applications Hands on experience within investment banking IT Strong knowledge and experience of working in Agile teams with Agile practices Good judgement and decision-making skills with a pragmatic and common-sense approach to solving problems Strong problem-solving and analytical skills Excellent communication and interpersonal skills, with the ability to build and maintain relationships with all stakeholders Ability to work in a fast-paced front-office environment Ability to prioritize and work on multiple workstreams simultaneously Ability to take ownership of issues and projects, and see them through to delivery TECHNICAL COMPETENCIES: C#/ WPF/ .NET development of rich desktop applications Multithreaded, concurrent, and asynchronous programming using TPL and Rx MVVM frameworks, preferably Prism Dependency Injection containers, preferably Unity LINQ/Rx with a functional mindset and coding style RESTful APIs and message queues such as ActiveMQ DevExpress, Infragistics, or any other popular WPF component library Object-Oriented Design and Programming (OOD/OOP) NUnit, Moq, TDD, BDD, UI Automation CI/CD Pipelines such as Azure DevOps Agile/Scrum practices Visual Studio and ReSharper We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. RECRUITMENT PROCESS: HR interview with the recruiter Technical interview with Capco Engineering team Client interview Feedback and offer

🏢 Summary: Senior QA Engineer role focused on test automation for a high-impact banking project, ensuring quality, reliability, and performance of complex financial systems. The position involves designing and maintaining automation frameworks, executing integration and performance tests, and analyzing production issues. The role requires strong collaboration within SDLC and DevOps-driven environments. 🗂️ Requirements: Based in Poland, 6+ years of software testing experience, Strong experience in QA automation with Java-based frameworks, Hands-on experience with BDD and Cucumber, Experience in API automation testing, Knowledge of Linux or Unix systems, Experience with Kubernetes or containerized environments, Proficiency in PL/SQL for data validation, Experience with monitoring tools such as Grafana, Strong debugging and root cause analysis skills, Experience in functional testing, Understanding of SDLC, Familiarity with Agile and DevOps practices 📃 Skills: Java, Cucumber, BDD, API, Linux, Unix, Kubernetes, PLSQL, SQL, Grafana, SDLC, Agile, DevOps, GitHub, Copilot, AI, Testing, Automation, Debugging, Logging, RootCause, Integration, Performance 🏢 Description: *We are looking for Poland based candidate. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. ROLE OVERVIEW: We are looking for a Senior QA Engineer with strong test automation expertise to join a high-impact banking project. You will play a key role in ensuring the quality, reliability, and performance of complex financial systems, working closely with developers, DevOps, and business stakeholders. This role requires both hands-on automation skills and a solid understanding of functional testing and production issue analysis . RESPONSIBILITIES: Test Automation: Develop and maintain automated test scripts using Java and Cucumber. Implement API automation testing strategies and frameworks. Ensure comprehensive test coverage across all layers of the application. Use of Copilot GitHub and AI knowledge and familiarity with AI concepts would be beneficial Integration Testing: Conduct integration testing to ensure seamless interaction between different components of the system. Identify and resolve integration issues in a timely manner. Performance Testing: Design and execute performance test plans to evaluate system performance under various conditions. Analyse performance test results and provide recommendations for improvements. SDLC Knowledge: Apply a deep understanding of the Software Development Life Cycle (SDLC) to all testing activities. Participate in all phases of the SDLC, including requirements analysis, design, development, and testing. Stakeholder Collaboration: Work closely with developers, product managers, and other stakeholders to understand requirements and provide feedback. Communicate effectively with team members and stakeholders to ensure alignment and clarity. Independent Work: Demonstrate the ability to work independently with minimal supervision. Take ownership of tasks and deliver high-quality results within defined timelines. TECHNICAL REQUIREMENTS: 6+ years in software testing , preferably in the banking/ insurance sector Strong experience in QA Automation (Java-based frameworks) Hands-on experience with BDD (e.g., Cucumber) Solid knowledge of Linux/ Unix systems Experience with Kubernetes/ containerized environments Proficiency in PL/ SQL for data validation Experience with Grafana or similar monitoring tools Strong debugging skills, including: Log analysis Root cause analysis of defects Proven experience in functional testing Nice-to-have: Familiarity with AI/ML basic concepts and terminology Experience with developer productivity tools such as: GitHub Copilot Claude API or similar AI tools Additional Requirements: Strong analytical and problem-solving mindset Ability to work independently and proactively in a fast-paced environment Strong communication skills Familiarity with Agile methodologies and DevOps practices. We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. Recruitment Process: HR Interview with the recruiter Technical Interview Client Interview Feedback and offer

🏢 Summary: Senior QA Engineer role focused on test automation for a high-impact banking project, ensuring quality, reliability, and performance of complex financial systems. The position involves hands-on automation, integration and performance testing, and close collaboration within Agile/DevOps teams. Requires strong Java-based automation expertise and experience with modern containerized environments. 🗂️ Requirements: Based in Poland, 6+ years in software testing, Experience in banking or insurance projects, Strong QA automation experience with Java frameworks, Hands-on BDD experience (Cucumber), API automation testing experience, Integration testing experience, Performance testing experience, Knowledge of SDLC, Linux/Unix knowledge, Kubernetes experience, PL/SQL proficiency, Experience with Grafana or monitoring tools, Strong debugging and log analysis skills, Experience in functional testing, Familiarity with Agile and DevOps practices 📃 Skills: Java, Cucumber, BDD, API, Automation, Testing, Kubernetes, Linux, Unix, PL/SQL, Grafana, SDLC, Agile, DevOps, Debugging, GitHub, Copilot, AI 🏢 Description: *We are looking for Poland based candidate. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. ROLE OVERVIEW: We are looking for a Senior QA Engineer with strong test automation expertise to join a high-impact banking project. You will play a key role in ensuring the quality, reliability, and performance of complex financial systems, working closely with developers, DevOps, and business stakeholders. This role requires both hands-on automation skills and a solid understanding of functional testing and production issue analysis . RESPONSIBILITIES: Test Automation: Develop and maintain automated test scripts using Java and Cucumber. Implement API automation testing strategies and frameworks. Ensure comprehensive test coverage across all layers of the application. Use of Copilot GitHub and AI knowledge and familiarity with AI concepts would be beneficial Integration Testing: Conduct integration testing to ensure seamless interaction between different components of the system. Identify and resolve integration issues in a timely manner. Performance Testing: Design and execute performance test plans to evaluate system performance under various conditions. Analyse performance test results and provide recommendations for improvements. SDLC Knowledge: Apply a deep understanding of the Software Development Life Cycle (SDLC) to all testing activities. Participate in all phases of the SDLC, including requirements analysis, design, development, and testing. Stakeholder Collaboration: Work closely with developers, product managers, and other stakeholders to understand requirements and provide feedback. Communicate effectively with team members and stakeholders to ensure alignment and clarity. Independent Work: Demonstrate the ability to work independently with minimal supervision. Take ownership of tasks and deliver high-quality results within defined timelines. TECHNICAL REQUIREMENTS: 6+ years in software testing , preferably in the banking/ insurance sector Strong experience in QA Automation (Java-based frameworks) Hands-on experience with BDD (e.g., Cucumber) Solid knowledge of Linux/ Unix systems Experience with Kubernetes/ containerized environments Proficiency in PL/ SQL for data validation Experience with Grafana or similar monitoring tools Strong debugging skills, including: Log analysis Root cause analysis of defects Proven experience in functional testing Nice-to-have: Familiarity with AI/ML basic concepts and terminology Experience with developer productivity tools such as: GitHub Copilot Claude API or similar AI tools Additional Requirements: Strong analytical and problem-solving mindset Ability to work independently and proactively in a fast-paced environment Strong communication skills Familiarity with Agile methodologies and DevOps practices. We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. Recruitment Process: HR Interview with the recruiter Technical Interview Client Interview Feedback and offer

🏢 Summary: Hybrid PM/BA role focused on translating cybersecurity and compliance requirements into actionable product specifications across B2B SaaS and B2C products. The position bridges security, compliance, and engineering by owning documentation, backlog management, analytics, and stakeholder communication. It requires strong hands-on cybersecurity, data analysis, and experience with internationalization, billing, and consent platforms. 🗂️ Requirements: 1–3 years experience in hybrid PM and BA role, Experience with B2B SaaS and B2C products, Hands-on cybersecurity knowledge, Ability to translate NIST, SOC2, ISO27001 into product requirements, Experience building data dashboards and analytics reports, Experience with internationalization and localization workflows, Experience with translation management platforms, Experience with consent management platforms, Experience with subscription billing platforms, Proficiency with diagramming and wireframing tools, Experience working in Agile/Scrum, Experience with Azure DevOps or similar tools, Strong English communication skills 📃 Skills: Cybersecurity, NIST, SOC2, ISO27001, SaaS, Analytics, Dashboards, Smartling, CMP, Stripe, Chargebee, Lucidchart, Agile, Scrum, AzureDevOps, Slack 🏢 Description: CAPCO POLAND Capco Poland is a global technology and management consultancy specializing in driving digital transformation across the financial services industry. We are passionate about helping our clients succeed in an ever-changing industry. We are also: Experts in banking and payments, capital markets and wealth and asset management Committed to growing our business and hiring the best talent to help us get there Focused on maintaining our nimble, agile and entrepreneurial culture About the Role: This is not a typical junior PM role, and it is not a typical BA role. We are looking for someone who genuinely operates across both — someone who can go deep on cybersecurity requirements in the morning and present a data-backed product recommendation to senior stakeholders in the afternoon. You will own the translation layer between compliance and product: taking technical security concepts and turning them into crisp requirements, user stories, and insights that drive real roadmap decisions. You will be embedded across our B2B SaaS and B2C consumer product lines, and you need to be comfortable with the distinct dynamics each brings. Key Responsibilities: •Act as the connective tissue between technical cybersecurity requirements and product delivery — owning documentation, requirements, and stakeholder alignment end-to-end. •Analyze data across both SaaS and consumer product lines to surface insights, identify gaps, and make prioritization recommendations with confidence. •Translate compliance frameworks (NIST, SOC 2, ISO 27001) directly into product requirements and acceptance criteria — without needing it filtered through a security team first. •Run stakeholder interviews, workshops, and review sessions independently; communicate findings fluently to both technical and executive audiences. •Maintain and continuously improve the product backlog; write user stories and functional specs that engineering can act on without back-and-forth. •Build and own KPI dashboards and product performance reporting used by senior leadership. •Create wireframes and process flows to communicate product requirements visually using diagramming tools such as Lucidchart or equivalent. •Support internationalization initiatives including coordination of translation workflows, localization compliance, and regional regulatory requirements. •Support sprint planning and serve as a reliable bridge between business needs and engineering execution. Required Qualifications: •1–3 years of experience in a hybrid PM and BA capacity — candidates from purely one track or the other will not be considered. •Experience across both B2B SaaS and B2C consumer products; you understand how user needs, data models, and stakeholder dynamics differ between the two. •Deep, hands-on cybersecurity knowledge is required; you should be able to interpret a compliance requirement and write a product spec from it without support. •Strong data and analytics skills; experience building dashboards or reports that inform product decisions, not just track output. •Proven ability to communicate complex technical topics clearly to non-technical stakeholders — this is a core function of the role, not a nice-to-have. •Internationalization experience is required, including hands-on involvement with translation workflows, and localization compliance; experience with translation management platforms such as Smartling is strongly preferred. •Experience with consent management platforms (CMPs) and the ability to translate privacy and consent requirements into product specifications. •Experience with subscription billing platforms such as Stripe or Chargebee, including familiarity with billing logic and how billing requirements surface in product design. •Proficiency with diagramming and wireframing tools such as Lucidchart or equivalent. •Familiarity with NIST, SOC 2, or ISO 27001 and the ability to apply them in a product context. •Fluency in Agile/Scrum; experience with Azure DevOps or equivalent tools. •Strong written and spoken English proficiency is required; this role involves daily communication with US-based stakeholders via Slack, Azure DevOps, and video calls. We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. ONLINE RECRUITMENT PROCESS STEPS Screening call with the Recruiter Competencies interview with Capco Hiring Manager Client’s interview Feedback/Offer

🏢 Summary: The offer is for a Senior Android Developer to design and build high-performance, scalable mobile applications in a client-facing, Agile environment. The role involves contributing to architecture, collaborating with cross-functional teams, and ensuring code quality, performance, and security. It targets experienced engineers with strong expertise in modern Android development and backend integration. 🗂️ Requirements: 5–9 years of Android development experience, Strong proficiency in Java, Strong proficiency in Kotlin, Deep knowledge of Android SDK, Experience with MVVM, Experience with Clean Architecture, Experience integrating RESTful APIs, Experience with Git, Experience with Gradle, Experience with CI/CD pipelines, Experience with unit testing, Experience with UI testing, Ability to participate in Agile development processes 📃 Skills: Android, Java, Kotlin, SDK, MVVM, CleanArchitecture, REST, Git, Gradle, CI/CD, JUnit, Espresso, Agile 🏢 Description: CAPCO POLAND SENIOR ANDROID DEVELOPER Capco Poland is a leading global technology and management consultancy, dedicated to driving digital transformation across the financial services industry. Our passion lies in helping our clients navigate the complexities of the financial world, and our expertise spans banking and payments, capital markets, wealth, and asset management. We pride ourselves on maintaining a nimble, agile, and entrepreneurial culture, and we are committed to growing our business by hiring top talent. ROLE OVERWIEW: We are currently looking for a Senior Android Developer to join our growing engineering team. If you are passionate about building high-quality mobile applications and enjoy working in a dynamic, client-facing environment—this role is for you. Key Responsibilities Design and develop high-performance, scalable Android applications using Java/Kotlin Collaborate closely with cross-functional teams including product owners, UX designers, and backend engineers Contribute to architectural decisions and technical strategyWrite clean, maintainable, and testable code following best practices Optimize applications for performance, reliability, and security Participate in code reviews and mentor junior developers Engage in Agile ceremonies and contribute to continuous improvement Essential Skills & Experience Solid experience as an Android Developer, with a strong focus on Java/Kotlin 5 - 9 years of experience in a similar position Deep understanding of Android SDK, architecture components, and modern development practices (MVVM, Clean Architecture) Experience with RESTful APIs and integration with backend services Familiarity with tools such as Git, Gradle, CI/CD pipelines Experience with testing frameworks and writing unit/UI tests Strong problem-solving skills and attention to detail Excellent communication skills and ability to work in an international team We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects.

🏢 Summary: Remote Senior .NET Developer role (EST hours) focused on designing and enhancing backend services for a banking trading platform, with strong emphasis on .NET and Oracle PL/SQL development in an Agile environment. The position involves building scalable integrations and maintaining critical trading functionalities. It targets experienced backend engineers within financial services. 🗂️ Requirements: 6+ years backend development experience, Strong experience with .NET Framework, Strong experience with C#, Solid expertise in Oracle PL/SQL, Experience with REST APIs, Experience with distributed application architectures, Experience in enterprise or financial services environments, Ability to work in Agile teams, Poland based candidate, Availability to work EST hours 📃 Skills: .NET, C#, Oracle, PLSQL, REST, SQL, CI/CD, Git, Agile 🏢 Description: *We are looking for Poland based candidate. The job is remote with EST working hours. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. Build scalable backend solutions powering the next generation of digital trading experiences. The Role We are looking for a Senior .NET Developer to join a high-performing delivery team supporting the enhancement and expansion of a leading banking client’s trading application platform. You will play a key role in designing, developing, and maintaining backend services and integrations that support critical trading functionality and business operations. This role is ideal for someone with strong backend engineering expertise, solid database development experience, and a collaborative mindset who enjoys working in fast-paced Agile delivery environments. What You’ll Do Design, develop, and maintain backend services and APIs using .NET Framework technologies Develop and optimize Oracle PL/SQL packages, procedures, functions, and database objects Collaborate with cross-functional teams including QA, business analysts, and frontend developers to deliver new trading platform features Participate in code reviews, technical design discussions, and release activities to ensure high-quality software delivery Troubleshoot production issues, identify performance improvements, and support ongoing platform stability What We’re Looking For 6+ years of backend development experience within enterprise or financial services environments Strong hands-on experience with .NET Framework and C# application development Solid expertise in Oracle PL/SQL development and database optimization Experience working with REST APIs, integrations, and distributed application architectures Strong problem-solving, communication, and stakeholder collaboration skills within Agile teams Bonus Points For Experience working on trading platforms, banking systems, or capital markets applications Familiarity with performance tuning and query optimization in Oracle databases Exposure to CI/CD pipelines, source control tools, and automated deployment processes Understanding of secure coding standards and enterprise application best practices We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. Recruitment Process: HR Interview with the recruiter Technical Interview Client Interview Feedback and offer

🏢 Summary: Offer for a Software Development Engineer in Test focused on building and maintaining automated test frameworks for APIs, databases, and UI layers in a financial platform. The role emphasizes integration testing, AI-enhanced test optimization, and embedding automation into CI/CD pipelines while collaborating with US-based teams. Position requires evening work hours and operates under a B2B contract model. 🗂️ Requirements: 4+ years of experience in software testing with strong focus on automation, Strong expertise in API, integration, and end-to-end UI testing, Experience with backend and middle-tier testing involving databases and external services, Proficiency in JavaScript, TypeScript, Python, Java, or C#, Experience designing scalable and reusable test automation frameworks, Experience integrating automated tests into CI/CD pipelines, Hands-on experience with automation testing tools, Familiarity with AI-based tools for test optimization and bug analysis, Experience working in Agile/Scrum environments, Availability to work evening hours and collaborate with US team 📃 Skills: JavaScript, TypeScript, Python, Java, C#, Postman, Rest-Assured, Selenium, Cypress, Playwright, Jenkins, GitLab, GitHub, Azure, CI/CD, APIs, SQL, AI, Agile, Scrum 🏢 Description: *We are looking for Poland based candidate. At Capco Poland, we’re not just another consultancy - we’re the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. ROLE OVERVIEW: We are seeking a Software Development Engineer in Test with expertise in automation testing across backend APIs, databases, and front-end systems (user and admin interfaces). The ideal candidate will leverage the latest tools, frameworks, and AI technologies to ensure the quality and performance of our platform while collaborating with cross-functional teams to streamline testing processes. You'll cooperate closely with US team, therefore working hours will be in the evening. KEY RESPONSIBILITIES: Test Automation Development Develop and maintain robust automated test suites focusing on API testing, integration testing, and UI testing for both user-facing and admin platforms Design reusable and scalable test automation frameworks. Integrate AI capabilities into the automation framework to optimize test strategies and improve efficiency. Integration Testing Validate API endpoints, data integrity, and middleware interactions between APIs, the database, and third-party systems. Collaboration & Process Improvement Work closely with developers, DevOps, and product teams to understand system architecture, identify critical paths, and ensure thorough test coverage. Contribute to Continuous Integration/Continuous Deployment (CI/CD) pipelines to automate test execution on code commits and deployments. Coverage Analysis & Metrics Develop automated reporting tools to analyze test coverage across integration, UI, and backend layers, focusing on regression, error handling, and other critical categories. Use automation scripts to continuously track coverage gaps and ensure the automation suite addresses high-risk areas. Provide data-driven insights from automated test results to refine testing priorities and improve overall quality REQUIRED QUALIFICATIONS: 4+ years in software testing, with significant experience in automation testing. Strong understanding of API testing, integration testing, and end-to-end UI testing. Proficiency in testing tools such as Postman, Rest-Assured, Selenium, Cypress, Playwright, or similar. Experience with middle-tier testing, including APIs interacting directly with databases and external services. Proficient in JavaScript, Python, Java, or C#, with a strong preference for JavaScript/TypeScript-based frameworks. Experience integrating automated tests into CI/CD pipelines using tools like Jenkins, GitLab CI, GitHub Actions, or Azure DevOps. Familiarity with AI-based tools for bug analysis, test optimization, and issue consolidation. Excellent analytical and problem-solving skills to identify testing bottlenecks and propose solutions. Strong verbal and written communication skills for collaboration with cross-functional teams. Background in Agile/Scrum development environments. We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects. Recruitment Process: HR Interview with the recruiter Technical Interview Client Interview Feedback and offer

🏢 Summary: Senior Full Stack Developer role focused on architecting and delivering high-performance web applications using React and Node.js. The position involves leading system design, building scalable front-end and back-end solutions, and overseeing cloud-based deployments and DevOps processes. The role includes technical ownership of microservices, APIs, databases, and application performance in a hybrid Warsaw-based setup. 🗂️ Requirements: 7+ years full stack development experience, 2+ years in senior or technical lead role, Expert-level React.js with Hooks and Redux, Advanced JavaScript ES6+ proficiency, Strong Node.js and Express.js experience, Experience designing REST or GraphQL APIs, Experience with OAuth, JWT, sessions, RBAC, Database design and optimization with PostgreSQL, MySQL, or MongoDB, Hands-on Docker experience, Experience with AWS, Azure, or GCP, CI/CD pipeline management experience, Proficiency with Git workflows, Bachelor’s or Master’s in Computer Science or related field 📃 Skills: React, Redux, JavaScript, HTML5, CSS3, Node.js, Express, GraphQL, REST, OAuth, JWT, RBAC, PostgreSQL, MySQL, MongoDB, Docker, Kubernetes, AWS, Azure, GCP, Git, CI/CD, Webpack, Babel, Vite 🏢 Description: 🧩 About the Company Our client is a rapidly growing US-based technology firm with global operations. With a strong commitment to innovation and quality engineering, the company is building a new engineering hub in Warsaw. This is your opportunity to join a high-performing team and play a pivotal role in developing next-generation digital solutions for the private capital markets. 📍 Location & Setup Start remotely and transition to a hybrid model based in Warsaw (3 days/week in the office in the coming months). 🧠 The Role: Senior Full Stack Developer (React & Node.js) We’re looking for an expert-level Senior Full Stack Developer with at least 7 years of professional experience in designing, architecting, and delivering high-performance web applications. You will take ownership of complex technical challenges across both the front-end and back-end, drive architectural decisions, and provide technical leadership and mentorship within the software development lifecycle. 🔧 Key Responsibilities Technical Leadership: Architect and develop scalable, responsive UIs with React.js, Redux, and modern JavaScript (ES6+). System Design: Design, build, and scale advanced server-side applications, microservices architecture, and RESTful/GraphQL APIs with Node.js and Express. Data Architecture: Lead database design, optimization, and integration strategies (PostgreSQL, MySQL, or MongoDB). Quality Assurance: Define testing strategies, write robust unit/integration tests, and establish efficient debugging protocols for the team. DevOps & Deployment: Oversee and optimize CI/CD pipelines, containerization using Docker, and cloud deployments. Agile Mentorship: Lead agile collaboration with product managers, designers, and engineers, while mentoring mid-level and junior developers. Performance: Proactively monitor system performance, identify bottlenecks, and maintain high-availability production-grade applications. Standards: Establish and maintain comprehensive technical documentation and coding standards. 📌 What We’re Looking For Front-End: Expert-level experience with React.js, Hooks, Redux, and complex component-based architecture. Deep mastery of HTML5, CSS3, and ES6+. Advanced configuration and optimization experience with build tools like Webpack, Babel, or Vite. Back-End: Senior-level proficiency in Node.js & Express.js for enterprise applications. Extensive API design and architecture experience (GraphQL highly preferred, alongside REST). Deep understanding and implementation experience with advanced security and authentication protocols: OAuth, JWT, sessions, and RBAC. Databases & DevOps: Proven experience in scaling and optimizing relational and non-relational databases (PostgreSQL, MySQL, or MongoDB). Solid hands-on experience with Docker; Kubernetes experience is highly advantageous. Demonstrated experience designing and deploying applications on cloud platforms (AWS, Azure, or GCP). Advanced proficiency with Git workflows and driving Agile/Scrum methodologies. 🎓 Qualifications Bachelor’s or Master’s in Computer Science or a related field. 7+ years of hands-on experience in full stack development. 2+ years of experience in a senior or technical lead capacity. Proven track record of architecting, deploying, and maintaining high-traffic production applications. 💡 Soft Skills Strategic, analytical thinker and highly effective problem-solver. Strong technical leadership, team collaboration, and cross-functional communication skills. Self-motivated with excellent time management and the ability to drive projects autonomously. Passion for continuous learning, adopting new technologies, and sharing knowledge with the team. 🎁 What’s Offered Competitive salary up to $6,200 USD/month. Hybrid remote role with 3 days form office in the heart of Warsaw Generous Paid Time Off (PTO). Comprehensive full benefits package. The unique chance to shape the technical foundation of a new engineering hub and lead high-impact projects. A supportive, innovation-driven work environment that values technical excellence.