Lead Full Stack Developer (.NET + React)

Компания "Andersen"

Andersen is hiring a Lead Full Stack Developer (.NET + React) to drive development and provide technical leadership, ensuring delivery of quality, team coordination, and alignment with architectural decisions.

The customer is an international company delivering professional and technology-enabled solutions that support effective collaboration, structured communication, and operational efficiency for organizations. It operates in a fast-growing environment, focusing on scalability, security, and continuous improvement while developing digital platforms used by diverse clients worldwide.

The project is focused on delivering full-stack engineering solutions while ensuring consistent technical execution and team coordination. It combines hands-on development with technical oversight, guiding the engineering team, supporting day-to-day delivery, and maintaining alignment across tasks and architectural decisions.

Responsibilities:

• - Designing, developing, testing, and maintaining software within a .NET 4.6 monolithic MVC API and React front‑end environment.
• Taking ownership of mid‑to‑high complexity tasks and delivering reliable, production‑ready solutions.
• Modernizing and refactoring legacy .NET components to improve performance, maintainability, and scalability.
• Building and integrating React front‑end components into existing backend API flows.
• Investigating and resolving complex technical issues, optimizing system performance, and supporting distributed components.
• Providing technical supervision and direction to other engineers on the team.
• Supporting TJ by handling day‑to‑day technical guidance, ensuring that TJ focuses on high‑level oversight rather than operational details.
• Reviewing architecture decisions with TJ, propose improvements, and drive implementation consistency.
• Ensuring developers follow best coding practices, documentation standards, and architectural guidelines.
• Helping prioritize work, clarify requirements, and unblocking engineers during daily execution.
• Acting as a point of stability for the team during active development phases.
• Leading code reviews and maintaining engineering standards across backend and frontend layers.
• Collaborating with product managers, designers, and QA to deliver end‑to‑end features.
• Preparing and maintaining architectural diagrams, API specifications, and integration documentation.
• Participating in Agile ceremonies (planning, stand‑ups, retrospectives) and helping improve team workflows.

Must-have:

• Experience in full stack development for 4+ years.
• Strong experience with C# / .NET Framework 4.6, MVC, API development, and legacy code maintenance/refactoring.
• Proficiency with React (React 16+, modern hooks, component lifecycle, reusable components).
• Strong SQL Server knowledge (query design, optimization, indexing).
• Experience working with monolithic architectures and gradually modernizing them.
• Solid understanding of event patterns, asynchronous processing, and scalable design practices (even within legacy constraints).
• Ability to provide technical direction and guidance to other developers.
• Experience mentoring, supervising, or coaching engineers (formal team lead experience is a plus but not mandatory).
• Ability to structure tasks, clarify technical requirements, and support daily execution to reduce the load on TJ.
• Strong ownership mindset and ability to work semi‑independently while aligning with TJ on strategic direction.
• Level of English – from Intermediate+ and above.

Nice-to-haves:

• Experience with modern DevOps practices (Azure DevOps, CI/CD pipelines).
• State management expertise (Redux, Zustand, RTK, or similar React patterns).
• Hands‑on experience with AI coding tools (Copilot, ChatGPT, Claude Code).
• Familiarity with cloud services (Azure preferred).

Reasons why this job would be interesting to you:

• Experience in teamwork with leaders in FinTech, Healthcare, Retail, Telecom, and others. Andersen cooperates with such businesses as Samsung, Siemens, Johnson & Johnson, BNP Paribas, Ryanair, Mercedes, TUI, Verivox, Allianz, T-Systems, etc..
• The opportunity to change the project and/or develop expertise in an interesting business domain.
• Job conditions – you can work both fully remotely and from the office or can choose a hybrid variant.
• Guarantee of professional, financial, and career growth! The company has introduced systems of mentoring and adaptation for each new employee.
• The opportunity to earn an additional up to 1,000 USD per month by participating in the company's activities.
• Access to the corporate training portal, where the entire knowledge base of the company is collected and which is constantly updated.
• Bright corporate life (parties / pizza days / PlayStation / fruits / coffee / snacks / movies).
• Certification compensation (AWS, PMP, etc).
• Referral program.
• English courses.
• Private health insurance and compensation for sports activities.

Join us!

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