Tech Lead Fullstack with .NET and Angular (f/m/x)

🏢 Summary: Senior Tech Lead role focused on leading engineering teams and defining technical strategy for digital transformation and automation projects. The position involves designing scalable cloud-based solutions using Node.js and React, overseeing architecture, code quality, and CI/CD processes. The role combines hands-on technical leadership with collaboration across international stakeholders. 🗂️ Requirements: Minimum 10 years experience in designing and delivering IT solutions, At least 3 years experience in Tech Lead role, Strong proficiency in Node.js and React, Practical experience with Azure or GCP, Experience with Kubernetes and Terraform, Experience implementing CI/CD pipelines, Experience managing distributed international teams, Higher technical education in Computer Science, Engineering, or related field, Familiarity with ITIL v4, DevOps, Agile, Kanban, Fluent English B2/C1 level 📃 Skills: Node.js, React, Azure, GCP, Kubernetes, Terraform, CI/CD, ITIL, DevOps, Agile, Kanban, JavaScript, Cloud 🏢 Description: We are seeking an experienced Tech Lead to play a pivotal role in leading and growing our engineering teams. The ideal candidate will combine deep technological expertise—especially in node.js/react and cloud solutions—with strong leadership and communication skills. You will be responsible for technical strategy, architecture, code quality, and mentoring, while collaborating with business stakeholders and supporting international projects. Our expectations - Minimum 10 years of experience in designing and delivering IT solutions, including at least 3 years in a leadership role (Tech Lead). - Strong proficiency in node.js/react - Practical experience with cloud platforms (Azure, GCP), Kubernetes, Terraform, CI/CD. - Proven ability to manage distributed and international teams, conduct code reviews, and mentor engineers. - Experience working in international environments and communicating with technical and business stakeholders. - Higher technical education (Computer Science, Engineering, Project Management). - Familiarity with ITIL v4, DevOps, Agile, Kanban methodologies. - Fluent English (B2/C1 level). Soft skills - Excellent communication and presentation skills. - Ability to work under pressure in a dynamic environment. - Proactive, goal-oriented, and problem-solving mindset. - Relationship-building skills with technical and business teams. Key tasks - Lead and mentor technical teams (Frontend, Backend, DevOps, QA) in digital transformation and automation projects. - Design and oversee scalable, secure solutions based on node.js/react and cloud components (Azure, Kubernetes, Terraform). - Implement and maintain CI/CD processes, test automation, monitoring, and deployment pipelines. - Conduct code reviews and ensure adherence to best practices in architecture and security. - Translate business requirements into concrete technical solutions and support pre-sales activities. - Coordinate knowledge transfer and onboarding for development teams. - Monitor project progress, report KPIs, and analyze risks. - Collaborate with international teams and stakeholders (Europe, USA, APAC). - Maintain project documentation and lead status meetings and retrospectives. - Foster a culture of innovation, continuous improvement, and high performance.

🏢 Summary: Hands-on Technical Lead (.NET) role focused on designing and delivering scalable, high-performance software solutions for logistics platforms. The position combines architectural decision-making, microservices and cloud-based system design with active coding and team leadership. You will drive technical direction, ensure best engineering practices, and oversee Azure-based cloud environments and CI/CD processes. 🗂️ Requirements: 8+ years of software engineering experience, Minimum 2 years in technical leadership role, Strong experience with .NET and C#, Experience designing and developing scalable RESTful APIs, Knowledge of microservices architecture and design patterns, Experience with message queues, Experience with relational or NoSQL databases, Experience with Azure and GCP cloud services, Experience with Docker and Kubernetes, Experience with CI/CD practices, Experience with Agile methodologies, Experience managing software releases and performance monitoring, Advanced English proficiency (B2+) 📃 Skills: .NET, C#, Node.js, REST, Microservices, RabbitMQ, Kafka, MySQL, MongoDB, CosmosDB, Azure, GCP, Docker, Kubernetes, CI/CD, Agile 🏢 Description: As Technical Lead (.NET) you join a team of talented engineers and developers working together to transform final mile logistics and supply chain operations.  Your role will be a hands-on leadership position where you guide engineering teams to deliver scalable, high-quality software solutions. This is the perfect role for experienced engineers who thrive in technical decision-making, architecture, and mentorship—while staying engaged in hands-on coding. Key Responsibilities: Define the technical direction, making pivotal design decisions to ensure our architecture is scalable, maintainable, and high performing. Stay hands-on with coding, leading by example and ensuring adherence to best practices in security, performance, development, deployment and observability. Implement scalable microservices, API gateways, and event-driven architectures, ensuring high availability, disaster recovery and fault tolerance strategies are in place. Champion high-quality code testing, automation testing, and continuous integration/continuous deployment (CI/CD). Oversee Azure-based cloud architecture, optimizing performance, security, and cost efficiency. Directly supervise, mentor, and develop a team of 5-7 engineers, providing career guidance and fostering a culture of engineering excellence full of collaboration, accountability and professional growth. Actively recruit and interview top talent to strengthen the engineering team. Collaborate with Product Managers to align roadmap priorities, streamline development workflows, and enhance team processes for improved efficiency and operational excellence. Optimize development workflows and SDLC processes to improve team velocity, efficiency and maintain low cycle times. Establish engineering KPIs and leverage data-driven insights to enhance performance. Stay updated with industry trends and emerging technologies to continuously improve our platform. Requirements: 8+ years in software engineering (ideally .NET C#), with at least 2 years in a technical leadership role. Experience in other tech stacks like Node.js as a plus. Demonstrated expertise in designing and developing scalable APIs, with knowledge of RESTful principles and best practices. Knowledge of microservices architecture and related design patterns / best practices. Experience with message queues (e.g., RabbitMQ, Kafka) and event-driven architecture / patterns. Experience with databases such as MySQL, MongoDB, CosmosDB or similar. Experience utilizing cloud services (Azure and GCP) and containerization (Docker, Kubernetes). Experience with Agile methodologies and CI/CD practices. Experience in managing software releases, performance monitoring, and reliability improvements. Strong problem-solving skills and ability to work in a fast-paced environment. Ability to explain complex technical concepts to engineers, executives, and cross-functional teams. Advanced proficiency in English, both written and spoken (B2+). Office location: Kraków, Poland Work Style: hybrid (2-3 days from the office / week preferred) Salary levels: 28 000 – 32 000 PLN/ month Take the next step in your career and become a part of OneRail’s exciting journey!

🏢 Summary: Tech Lead role responsible for leading the architecture and evolution of a key business system in a logistics environment, covering both legacy (.NET Framework) and modern (.NET 6/8, Docker, async) components. The position focuses on system audit, refactoring, technological decision-making, and guiding architectural standards during a technology transformation. Strong ownership over monolith and service-based architecture is required. 🗂️ Requirements: 6–8+ years of experience in .NET development, Strong knowledge of .NET Framework (ASP.NET MVC, WebForms), Strong knowledge of .NET Core / .NET 6+, Proficiency in C#, Strong knowledge of SQL Server, Experience with legacy systems, Ability to analyze and refactor existing code, Experience in code review and technology audits, Knowledge of event-driven and asynchronous architecture, Understanding of technical debt impact, English proficiency B2/C1 📃 Skills: .NET, ASP.NET, WebForms, C#, SQL, SQLServer, RabbitMQ, Docker, CI/CD, Microservices, Monolith, EventDriven, Async 🏢 Description: Dynamicznie rozwijająca się organizacja z obszaru logistyki poszukuje osoby na stanowisko Tech Lead, która przejmie odpowiedzialność za rozwój i architekturę kluczowego systemu biznesowego. Środowisko obejmuje zarówno rozwiązania legacy (.NET Framework), jak i nowoczesne komponenty (.NET 6/8, Docker, komunikacja asynchroniczna). Zakres obowiązków Odpowiedzialność za architekturę systemu (monolit + usługi) Audyt istniejącego kodu, bazy danych i integracji Identyfikacja oraz priorytetyzacja długu technologicznego Podejmowanie decyzji technologicznych (rozwój / utrzymanie / wygaszanie komponentów) Współpraca z zespołem developerskim oraz biznesem Przejmowanie wiedzy od obecnego dostawcy systemu Definiowanie standardów developmentu i kierunku rozwoju architektury Wymagania Min. 6–8 lat doświadczenia w developmentcie .NET Bardzo dobra znajomość: .NET Framework ( ASP.NET MVC / WebForms) .NET Core / .NET 6+ C# SQL Server Doświadczenie w pracy z systemami legacy Umiejętność analizy i refaktoryzacji istniejącego kodu Doświadczenie w code review / audycie technologicznym Znajomość architektury event-driven / async (np. RabbitMQ) Rozumienie wpływu długu technologicznego na biznes Znajomość języka angielskiego na poziomie umożliwiającym sprawną komunikację (B2/C1) Mile widziane Doświadczenie w systemach ERP / logistycznych / integracyjnych Znajomość Docker / CI/CD Doświadczenie w architekturze hybrydowej (monolit + usługi) Oferujemy Realny wpływ na architekturę i kierunek rozwoju systemu Udział w transformacji technologicznej Stabilne środowisko pracy i długofalowe projekty Współpracę z zespołem technicznym i decyzyjność

🏢 Summary: Senior Tech Lead role focused on designing and delivering enterprise solutions using .NET and Angular in a 100% remote model. The position combines hands-on architecture work with technical leadership, guiding teams and driving integration, CI/CD, and event-driven solutions. The role emphasizes scalable systems, workflow automation, and high engineering standards. 🗂️ Requirements: 8+ years of software development experience, Proven experience in senior or lead technical role, Strong expertise in .NET, Strong expertise in Angular, Strong expertise in SQL, Experience building REST APIs, Experience with GitLab CI/CD, Experience with OpenShift, Experience with event-driven architecture, Knowledge of integration methods, Knowledge of workflow or BPM systems, Communicative Polish, Functional English, Legal right to work in the EU 📃 Skills: .NET, Angular, SQL, REST, GitLab, CICD, OpenShift, EventDriven, BPM, Architecture, Integration 🏢 Description: Unleash innovative leadership — drive cutting-edge technology solutions and inspire teams to excellence! Wroclaw-based opportunity with a 100% remote work model. As a Senior Tech Lead – .NET & Angular Solutions , you will be working for our client in the technology sector, pioneering enterprise solutions that streamline workflows and enable seamless integrations. Your leadership will shape the future of digital transformation, empowering development teams to deliver impactful and scalable systems. Your main responsibilities: Guide and mentor a team of developers in designing and implementing high-quality software solutions. Make key technical decisions related to architecture, integration, and development processes. Collaborate with stakeholders to translate business requirements into robust technical specifications. Oversee the development lifecycle, ensuring adherence to best practices and quality standards. Support continuous integration and deployment pipelines using GitLab CI/CD and OpenShift. Lead efforts in implementing event-driven architectures and workflow/BPM processes. Facilitate code reviews and foster a culture of technical excellence and innovation. You're ideal for this role if you have: 8+ years of experience in software development, with proven leadership in a senior or lead role. Strong expertise in .NET, Angular, SQL, and REST API development. Experience with GitLab CI/CD, OpenShift, and event-driven architecture. Solid understanding of integration methods and workflow management systems. Ability to lead technical discussions and support team members in solving complex challenges. It is a strong plus if you have: (optional) Certification in Agile, Scrum, or related methodologies. Experience with BPM tools or workflow automation solutions. Language Required for the role: Communicative Polish and functional proficiency in English. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Long-term hybrid Tech Lead role (Angular + .NET) in the energy sector, focused on delivering high-quality applications and ensuring architectural consistency. The position combines hands-on development with technical leadership, code reviews, and coordination within an Agile team. The role emphasizes ownership, best practices, and end-to-end delivery responsibility. 🗂️ Requirements: Senior-level experience with Angular, Experience as Tech Lead or Senior Developer with leadership responsibilities, Full-stack experience with .NET, Knowledge of clean code principles, Understanding of software architecture, Knowledge of design patterns, Experience in Agile/Scrum environments, Ability to review and approve Pull Requests, Experience ensuring code quality, performance, and security, EU citizenship and residence in Poland 📃 Skills: Angular, .NET, C#, TypeScript, HTML, CSS, Agile, Scrum, Git, REST 🏢 Description: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are seeking a Tech Lead (Angular + .NET) to join a hybrid development team in the energy sector, focusing on high-quality application delivery, architectural consistency, and technical leadership. Project information: Type of project: IT services / Energy sector Office location: Wrocław, Poland Work mode: Hybrid  (1–2 days per week in the office) Budget: 140-170 PLN  net/ h- B2B Project length: Long-term Only candidates with citizenship in the European Union and residence in Poland Start date: ASAP (depending on candidate’s availability) Project scope: Ensure high code quality, best practices, and compliance with the defined technology stack across applications Review and approve Pull Requests with a focus on maintainability, performance, and security Provide technical leadership and take responsibility for delivery towards the client Define application scope in collaboration with stakeholders, especially during new releases Ensure timely delivery within agreed estimates and expected quality standards Identify and communicate technical risks and potential issues early Support, mentor, and guide team members in their daily work Assign tasks and coordinate activities within the development team Resolve team conflicts and foster a collaborative environment Share delivery status and align with other Tech Leads and Architects Organize and facilitate Agile ceremonies (daily stand-ups, sprint planning, retrospectives, demos, etc.) Collaborate closely with QA, UX, and other teams to ensure end-to-end quality Maintain clear and transparent communication with stakeholders Competence demands: Strong experience with Angular (Senior level) Proven experience as a Tech Lead or Senior Developer with leadership responsibilities Optional but strong advantage: Full-stack development experience with .NET Solid understanding of clean code principles, software architecture, and design patterns Experience working in Agile/Scrum environments Very good English (spoken and written) Strong ownership, accountability, and problem-solving skills Nice to have: Experience working on enterprise-scale applications Previous collaboration with international clients Exposure to energy, utilities, or industrial domains We offer: Hybrid working model Part-time job agreement based on b2b Private medical care with dental care (covering 70% of costs) Multisport card (also for an accompanying person) Life insurance

🏢 Summary: Senior Angular Tech Lead role focused on leading technical delivery of enterprise-scale applications in an Agile environment. The position combines hands-on Angular development with code quality oversight, architectural guidance, and close collaboration with stakeholders. Hybrid work model in Wrocław on a 9–10 month contract with possible extension. 🗂️ Requirements: Senior-level experience with Angular, Experience as Tech Lead or Senior Developer with leadership responsibilities, Strong knowledge of clean code principles, Solid understanding of software architecture, Knowledge of design patterns, Experience working in Agile/Scrum environments 📃 Skills: Angular, Agile, Scrum, NET, Architecture, DesignPatterns, CleanCode 🏢 Description: Technical Requirements Strong experience with Angular (Senior level) Proven experience as a Tech Lead or Senior Developer with leadership responsibilities Solid understanding of clean code principles, architecture, and design patterns Experience working in Agile/Scrum environments Excellent English communication skills Strong ownership mindset and accountability Nice to Have Full-stack experience with . NET (strong advantage) Experience with enterprise-scale applications Previous collaboration with international clients Exposure to energy, utilities, or industrial domains Required Technical Skills Angular, Agile, Scrum Main Responsibilities Technical Leadership & Delivery Ensure high code quality, adherence to best practices, and compliance with the technology stack across applications Review and approve Pull Requests with a focus on maintainability, performance, and security Challenge technical and business assumptions to drive optimal solutions Identify and communicate technical risks early Team Leadership (Tech Lead Role) Take ownership of technical delivery in direct collaboration with the client Define application scope together with stakeholders, especially at the start of new releases Ensure on-time delivery within agreed estimates and expected quality standards Mentor and support team members in their daily work Assign tasks and coordinate team activities Proactively manage and resolve team conflicts Share delivery updates with other Tech Leads and the Architect Agile & Collaboration Facilitate Agile ceremonies, including: Daily stand-ups Estimation sessions Refinements Sprint planning Retrospectives Demos Collaborate closely with QA, UX, and occasionally Mobile teams to ensure end-to-end quality Maintain transparent and effective communication with all stakeholders Wrocław,  (hybrid - 1-2 days per week in office, preferred mode l 9-10 months contract (may be extended)

🏢 Summary: Hybrid Engineering Team Leader (.NET/C#) role focused on leading a development team and ensuring high-quality delivery of proprietary backup and disaster recovery products. Combines people management with partial hands-on development and ownership of end-to-end product execution. Strong emphasis on engineering standards, collaboration, and technical excellence. 🗂️ Requirements: Minimum 2 years experience leading development team (min. 3 people), Minimum 5 years commercial experience with .NET and C#, Strong knowledge of OOP principles, Strong knowledge of SOLID principles, Knowledge of design patterns, Experience with SQL databases, Knowledge of Git, Knowledge of Jira, Knowledge of Docker, Good knowledge of Windows, Good knowledge of Linux, English B2 level, Polish B2 level 📃 Skills: .NET, C#, OOP, SOLID, SQL, Git, Jira, Docker, Windows, Linux, NoSQL, Kubernetes, VMware, Hyper-V, S3, SignalR, TeamCity 🏢 Description: For our Client operating in the backup & disaster recovery domain, we are looking for a .NET Team Leader who will take on a key leadership role within a growing R&D organization. The company develops its own proprietary products , used globally — including by Fortune 500 companies — and is currently in a phase of strong growth and expansion of its engineering teams. This is an environment where you can have a real impact on the product, people, and technological direction . 📍 Hybrid – remote work + 2 days per week from the office 📍 Offices: Poznań / Kraków , with additional locations planned this year 🚀 The Role We are looking for an Engineering Team Leader (.NET/C#) — someone with a strong software development background who wants to focus primarily on people management , team development, and ensuring high-quality software delivery. This is not a pure Tech Lead role — while technical competence is important, leadership and soft skills are key . 🔧 Your Responsibilities Managing a development team (building, leading, mentoring), End-to-end responsibility for product/project development in cooperation with the Product Manager, Ensuring high software engineering standards (SOLID principles, best practices), Conducting code reviews, Partial hands-on work in the codebase, Close collaboration with QA, Product, DevOps/Infrastructure, Support, and Customer Success teams, Supporting the team in solving technical challenges, Co-creating and maintaining technical and project documentation, Participating in technical recruitment processes (e.g. live coding, code reviews). 🧠 Requirements Minimum 2 years of experience leading a development team (at least 3 people), Minimum 5 years of commercial experience with .NET / C# , Strong knowledge of OOP principles, SOLID, and design patterns, Experience working with SQL databases (NoSQL is a plus), Knowledge of Git, Jira, Docker , Good knowledge of Windows and Linux environments, Polish and English — communicative level (B2) , A people-oriented mindset with a focus on mentoring, motivation, and team growth. ⭐ Nice to Have Kubernetes, VMware, Hyper-V, S3 Storage, SignalR, TeamCity, Experience with desktop applications, Low-level programming experience. 🎁 Benefits Private medical care, Sports card (e.g. Multisport), Training and development budget, English lessons during working hours, Additional days off (health prevention day, menstrual leave), Employee referral program, integrations, company events, Real influence on the product and organizational growth. 📌We will contact only selected candidates who meet the requirements specified in the job posting. The recruitment process is conducted by TQLO Sp. z o.o. , an IT recruitment agency. KRAZ registration number: 33580

🏢 Summary: Leadership role for an experienced Tech Lead responsible for designing and delivering high‑performance product features in modern C++ within a Linux environment. The position combines hands‑on expert‑level C++ development with technical ownership, architectural involvement, and team mentoring. Work is fully remote under a long‑term B2B collaboration model. 🗂️ Requirements: Minimum 8 years of experience in C++ programming (modern C++), Strong knowledge of multithreading, Strong knowledge of memory management, Experience in performance optimization, Good knowledge of Linux systems, Experience in Linux-based development, Experience delivering complex end-to-end production features, Proven experience in technical leadership and mentoring 📃 Skills: C++, Linux, Multithreading, Concurrency, Memory, Performance, Architecture 🏢 Description: Dla naszego klienta poszukujemy osobę na stanowisko Tech Lead (f/m/n). Poszukujemy doświadczonego Tech Leada z silnym zapleczem w zakresie nowoczesnego C++ oraz rozwoju oprogramowania w środowisku Linux. Rola wymaga zarówno umiejętności technicznych na poziomie eksperckim, jak i dojrzałego przywództwa oraz zdolności do prowadzenia zespołu w realizacji złożonych funkcjonalności produktowych. Zakres obowiązków • Prowadzenie projektowania, implementacji i dostarczania złożonych, wysoko wydajnych funkcjonalności. • Mentoring i wspieranie członków zespołu, przyspieszanie ich rozwoju technicznego. • Pełnienie roli autorytetu technicznego i aktywne uczestnictwo w dyskusjach architektonicznych. • Współpraca z zespołami Product, QA, DevOps i innymi zespołami inżynieryjnymi. • Utrzymywanie wysokich standardów kodowania, optymalizacji wydajności i rozwiązań wielowątkowych. • Wprowadzanie usprawnień w procesach rozwojowych, jakości kodu i niezawodności systemu. • Proaktywne poznawanie i wdrażanie nowych technologii w ramach stosu technologicznego zespołu. Wymagania • Minimum 8 lat doświadczenia w programowaniu w C++ (preferowane nowoczesne C++). • Bardzo dobra znajomość programowania wielowątkowego, zarządzania pamięcią oraz optymalizacji wydajności. • Udokumentowane doświadczenie w prowadzeniu agend technicznych, mentorowaniu i wspieraniu pracy zespołu. • Dobra znajomość systemów Linux i doświadczenie z programowaniem w środowisku Linux (poziom użytkownika). • Doświadczenie w dostarczaniu złożonych funkcjonalności produkcyjnych end-to-end. • Wysoko rozwinięte umiejętności interpersonalne i komunikacyjne. • Zdolność do szybkiego uczenia się nowych technologii oraz otwartość na pracę poza dotychczasowym obszarem (Python, AWS, Go). • Samodzielność, odpowiedzialność i silne poczucie własności. • Wykształcenie wyższe techniczne (Informatyka, Inżynieria lub pokrewne). Mile widziane • Doświadczenie w programowaniu w Go i/lub Python. • Znajomość cloud-native development i narzędzi IaC (Terraform, CloudFormation). • Doświadczenie w tworzeniu aplikacji w środowiskach cloud/SaaS (szczególnie architektury serverless AWS). • Doświadczenie w fullstack development, w tym REST API oraz nowoczesne interfejsy frontowe. • Znajomość protokołów sieciowych, zasad bezpieczeństwa i systemów bazodanowych. • Doświadczenie z pipeline’ami CI/CD (GitHub, Jenkins, Artifactory, Ansible). Oferujemy: Model pracy: zdalnie Umowa B2B z SHIMI. Współpraca długofalowa. Jesteśmy otwarci na oczekiwania finansowe kandydatów. Start: ASAP - dostępność do miesiąca.

🏢 Summary: Tech Lead role focused on architecting and leading development of Risks & Inspections and Safety Intelligence solutions using .NET, C#, and React in an enterprise SaaS environment. The position involves backend engineering, API design, event-driven architecture, and technical leadership within a hybrid B2B contract setup. The project includes collaboration across domains with emphasis on secure, spec-driven, and scalable development practices. 🗂️ Requirements: Deep knowledge of .NET architecture, Deep knowledge of C# architecture, Experience with REST API design, Experience with OpenAPI, Expertise in React, Strong understanding of event-driven architecture, Experience in spec-driven development, Ability to lead technical projects and teams, Proficiency in English, Availability for hybrid work in Warsaw 📃 Skills: .NET, C#, REST, OpenAPI, React, SaaS, APIs, MDM 🏢 Description: Team Structure: Team of 5, including the tech lead, backend, frontend, QA, and SME. Contract: B2B - 12 months contract with possible extensions. Set up: Hybrid - 2 days/week in the Warsaw office, rest remote. Start Date: ASAP, ideally within 3-4 weeks. Travel: Possibly one trip during the year to Netherlands or France. Language Requirement: Proficiency in English. Summary: The primary purpose of the Tech Lead role is to guide the development of a project focusing on Risks & Inspections and Safety Intelligence. This position is crucial for ensuring the architecture and backend engineering align with industry standards and project goals, leading a small team while overseeing technical delivery and stakeholder collaboration. Main Responsibilities: - Architect .NET / C# solutions and oversee backend engineering. - Design APIs using contract-first approach with REST and OpenAPI. - Ensure React-based enterprise SaaS applications align with business requirements. - Implement event-driven architecture and manage workflow orchestration. - Lead spec-driven development ensuring quality and traceability. - Manage authorization, auditability, and secure design practices. - Facilitate human-in-the-loop controls within agentic workflow patterns. - Align capabilities across multiple domains including MDM, audit, and APIs. - Provide technical leadership and manage delivery planning and risk assessment. Key Requirements: - Deep knowledge of .NET / C# architecture. - Experience with REST and OpenAPI design. - Expertise in React for enterprise SaaS applications. - Strong understanding of event-driven architecture. - Experience in spec-driven development practices. - Capability to lead technical projects and teams. Nice to Have: - Experience with agentic workflow understanding. - Familiarity with human-in-the-loop governance principles. - Knowledge of auditability and traceability by design. - Background in cross-capability collaboration.

🏢 Summary: Backend Tech Lead role focused on leading and implementing a strategic rewrite of a core financial platform module into a modern, scalable architecture. The position combines hands-on Java/Spring Boot development with architectural decision-making, API design, and integration across multiple enterprise banking systems. It involves designing high-performance backend services handling large transactional and reporting datasets. 🗂️ Requirements: 7+ years backend or fullstack development experience, Strong Java expertise, Strong Spring Boot expertise, Experience designing REST APIs, Experience as Tech Lead or technical owner, Experience designing scalable and distributed systems, Strong relational database design skills (PostgreSQL), Experience with Elasticsearch or similar search technology, Experience integrating external systems via REST or GraphQL, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Knowledge of OAuth2 and OIDC, Working knowledge of React, Working knowledge of TypeScript, Experience handling large datasets with complex queries, Ability to lead architecture and mentor developers 📃 Skills: Java, Spring, SpringBoot, REST, GraphQL, PostgreSQL, Elasticsearch, Docker, Kubernetes, CI/CD, OAuth2, OIDC, React, TypeScript, SQL, Microservices, DistributedSystems 🏢 Description: Our client is an international financial technology company building solutions that support transaction communication, balances visibility, reporting, and integrations across multiple banking systems . We are looking for a Backend Tech Lead to join a strategic rewrite of a core platform module. The role combines technical leadership with hands-on backend development , helping redesign a legacy component into a modern, scalable architecture. You will work closely with product stakeholders, platform engineers, and frontend teams to design and implement reliable, high-performance backend services that integrate multiple enterprise systems. IN SHORT: 🌍 Remote work or on-site (Wrocław, Bielsko-Biała) – your choice! 💰 170 - 190 PLN/h + VAT ☑️ B2B contract Your Daily Missions Lead the design and development of backend services for a core platform rewrite. Design scalable services responsible for transactions, balances, statements, and reporting data . Define API contracts and integration patterns between backend services, frontend applications, and external enterprise systems. Make key decisions around data modeling, search/indexing strategies, and performance optimization for million-row datasets with complex filtering, sorting, and pagination . Support frontend teams by ensuring API-first design and smooth integration with React applications . Ensure engineering quality through code reviews, architecture discussions, and mentoring other developers . Collaborate closely with product, frontend, and platform teams to deliver robust, production-ready systems . The Essentials We're Seeking 7+ years of experience in backend or fullstack software development. Strong expertise in Java and Spring Boot , including designing modular backend services and REST APIs. Experience acting as a Tech Lead or technical owner responsible for architectural decisions. Solid experience designing scalable APIs and distributed systems . Strong understanding of data modeling in relational databases (e.g., PostgreSQL) and designing efficient query patterns. Practical experience with Elasticsearch (or similar search/indexing technologies) for filtering, search, and aggregation over large datasets. Experience designing hybrid data architectures combining multiple data sources . Experience working with external system integrations , including REST or GraphQL APIs. Familiarity with containerized environments (Docker, Kubernetes) and modern CI/CD pipelines. Understanding of security patterns in enterprise systems (OAuth2, OIDC, authentication and authorization flows). Working knowledge of React and TypeScript , enabling effective collaboration with frontend teams. Proven ability to break down complex architectural changes into manageable development phases . Experience using AI-assisted development tools (e.g., Cursor, Claude Code, or similar agentic coding tools) and openness to experimenting with AI-driven approaches to improve development efficiency and engineering workflows . Ability to combine hands-on engineering with technical leadership and mentoring . Nice-to-Haves Experience in FinTech, banking, or enterprise integration platforms . Experience with large-scale transactional or reporting systems . Experience with GraphQL integrations . Experience with data migration or legacy system modernization . Experience designing API-first platforms . Familiarity with observability practices (logging, metrics, tracing). Understanding of database partitioning and query optimization patterns . Reasons Why You Would Enjoy Working With Us We work in the latest technologies and with international clients, and our projects are polished from < to /> - learn about some of the projects we have completed. We organize TechTalks, meet-ups and create guilds where we exchange knowledge - you can learn a lot from your teammates. We have a close-knit team and we make sure to have regular integrations - we often go out to celebrate together. You can work remotely or choose to work from our offices in Wroclaw or Bielsko-Biala. However, we count on your openness to occasionally visit the office for team meetings or client visits, or possible occasional trips to the client's headquarters. You can adjust your working hours to suit your needs, starting your day between 7:00 and 10:00 am. You can work with great specialists in their fields who also have a sense of humor and other after-hours hobbies. It is the people who create the unique atmosphere and relaxed atmosphere at CSHARK. We have a flat structure - we are not a corporation and don't want to be one 🙃. We offer bonuses for employee referrals (from 3000 PLN to 7000 PLN). We organize remote English classes and provide access to the company library. You can also become an author/author of articles published on our technical blog - https://cshark.com/blog/ .