Lead .NET Development Team: Mentor, Deliver & Innovate

OneOcean Group; Polska; Hybrid; PLN 260,000 - 380,000; Full time

Benefits offered by this job

Health Coverage

Vision Care

Group Insurance

Pension Plan

Multisport

Social Benefits

Counseling & Wellness

Job summary

OneOcean Group is seeking an experienced Development Team Leader (.Net) to guide a skilled development team in Poland. You will lead by example, drive engineering excellence, and ensure high-quality, scalable software delivery.

Collaborate with architects, product owners and other leaders to align technical direction with business goals. You will mentor engineers, promote best practices, and help evolve CI/CD and DevOps practices while fostering a culture of continuous improvement and knowledge

Qualifications

• 10+ years of commercial software development experience.
• 3+ years leading Scrum teams with Agile methodologies.
• Strong technical expertise in .NET and object-oriented programming.
• Experience with microservices, distributed architecture, GraphQL, REST APIs, event buses, and message queues.
• Solid understanding of Domain-Driven Design (DDD).
• Good understanding of client-server architecture and asynchronous programming.
• Proficiency in TDD, unit, integration, and acceptance testing.
• Familiarity with SQL/NoSQL (MS SQL Server, MongoDB), Docker, and cloud platforms (AWS/Azure).
• Exceptional communication, teamwork, leadership skills.
• Analytical mindset with a knack for leading by example.
• Experience with front-end technologies (React, HTML, CSS, JavaScript, jQuery).
• Experience with CI/CD pipelines, Jenkins, and modern DevOps practices.
• Experience with AWS/Azure cloud environments.
• Familiarity with application performance monitoring tools.

Responsibilities

• Lead a team of .NET developers, ensuring alignment on goals, quality, and delivery timelines.
• Mentor and coach team members to support technical and professional growth.
• Drive engineering excellence by promoting best practices in coding, architecture, and testing.
• Plan and manage team capacity, sprints, and milestones to ensure predictable delivery.
• Collaborate with other Team Leaders, Development Managers, Architects, and Product Owners to align engineering execution with business objectives.
• Ensure effective adoption and execution of agile methodologies within the team.
• Contribute to evolution of development processes, CI/CD pipelines, and DevOps practices.
• Foster a culture of continuous improvement, innovation and knowledge sharing.

Skills

Leadership

Scrum

Agile

C#.NET

OO programming

Front-end React

HTML/CSS/JS

DDD

Microservices

Distributed architecture

GraphQL

REST APIs

Event buses / Message queues

TDD / Testing

SQL/NoSQL (MS SQL, MongoDB)

Docker

CI/CD / Jenkins

Cloud (AWS/Azure)

DevOps practices

Communication

Tools

Docker

Jenkins

AWS

Azure

MS SQL Server

MongoDB

GraphQL

REST APIs

Job description

OneOcean Group is seeking an experienced Development Team Leader (.Net) to guide a skilled development team in Poland. You will lead by example, drive engineering excellence, and ensure high-quality, scalable software delivery.

Collaborate with architects, product owners and other leaders to align technical direction with business goals. You will mentor engineers, promote best practices, and help evolve CI/CD and DevOps practices while fostering a culture of continuous improvement and knowledge