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L3 Support Engineer

  • Remote
  • Wrocław
  • Bielsko-Biała
  • Middle 90 - 105 PLN/h + VAT B2B
  • Senior 105 - 125 PLN/h + VAT B2B
Apply Now!

Unfolding Your Next Role

Are you the kind of person who enjoys solving problems, talking to people, and making complex things simple? Do you speak fluent English and feel comfortable guiding others through technical topics? If so, we might have the perfect role for you!

We’re looking for a L3 Support Engineer to support our growing product. You’ll be the bridge between our technology and our clients—helping them succeed, answering their questions, and ensuring they get the most out of our solution. This is a great opportunity for someone who enjoys working with both people and technology and isn’t afraid to speak up.

Tech & Tool Stack

CSHARK

C#

CSHARK

.Net

CSHARK

Azure

CSHARK

Docker

CSHARK

Kubernetes

CSHARK

MSSQL

CSHARK

PostgreSQL

Your Daily Missions

  • Handling L3 support tickets – analyzing and resolving complex technical issues that require in-depth system and development knowledge.

  • Supporting development and operations teams in troubleshooting and implementing fixes.
  • Performing log, trace, system metrics, and application data analysis to quickly identify the root cause of incidents.

  • Developing and maintaining tools for monitoring, automation, and troubleshooting.

  • Collaborating with DevOps and QA teams to deploy fixes and improve CI/CD processes.

  • Ensuring high availability and performance of applications and integrations (.NET, databases, APIs).

  • Participating in the on-call rotation and providing support outside regular business hours when required.

  • Documenting solutions and sharing knowledge with L1/L2 teams.

  • Working in accordance with ITIL best practices for incident, problem, and change management.

The Essentials We’re Seeking

  • Proven experience in an L3 support role (Support Engineer / System Engineer / Developer).
  • Strong knowledge of .NET 8 and C#.
  • Hands-on experience with REST API and Web API, plus working knowledge of SOAP API.
  • Solid experience with Docker / Kubernetes / OpenShift / Azure.
  • Strong knowledge of MS SQL and PostgreSQL (query optimization, performance tuning, debugging).
  • Experience with Kafka or similar messaging systems.
  • Familiarity with tools such as MinIO, Strapi, Grafana, Azure DevOps.
  • Strong troubleshooting and problem-solving skills.
  • Fluent English (spoken and written).
  • Flexibility and readiness for on-call support and occasional work outside standard hours.

Nice-to-haves

  • Experience in Application Maintenance / Application Support.
  • Knowledge of SRE (Site Reliability Engineering) practices.
  • Experience in automating support and monitoring processes.

Practice Lead

Tomasz Szczepaniak

Production Support Technical Lead at CSHARK. Our shark, which apart from shooting and offroad, also has a passion to establish customer service of the highest quality.

Our
Benefits

At CSHARK, it’s not about trendy perks or the latest gaming console in the lounge. Based on feedback from our team, what truly counts is an environment conducive to focused work, structured processes, and continuous skill development. We prioritize what genuinely enriches the daily work experience, ensuring that every moment spent with us is both productive and fulfilling. 

100% remote work

Harness the power of technology with our remote-first approach. Work from the comfort of your space while staying connected and collaborative. 

Flexible hours

Find your rhythm with hours that align to your lifestyle. We understand that productivity isn’t confined to the typical 9-to-5.

International projects

Engage in projects that transcend borders. Experience the thrill of working with diverse teams and clients from different parts of the world.Navigate the global tech landscape with ease. Enhance your communication skills with our tailored Business English sessions.

Business english lessons

Navigate the global tech landscape with ease. Enhance your communication skills with our tailored Business English sessions.

Participation in charity actions

Connect with the community and contribute to causes that matter. Join us in various charity initiatives and be a part of change that extends beyond business.

In-house technology workshops

Stay at the forefront of technology. Dive deep into topics, refine your skills, and learn from peers through our regular tech workshops. 

100% remote work

Harness the power of technology with our remote-first approach. Work from the comfort of your space while staying connected and collaborative. 

Flexible hours

Find your rhythm with hours that align to your lifestyle. We understand that productivity isn’t confined to the typical 9-to-5.

International projects

Engage in projects that transcend borders. Experience the thrill of working with diverse teams and clients from different parts of the world.Navigate the global tech landscape with ease. Enhance your communication skills with our tailored Business English sessions.

Business english lessons

Navigate the global tech landscape with ease. Enhance your communication skills with our tailored Business English sessions.

Participation in charity actions

Connect with the community and contribute to causes that matter. Join us in various charity initiatives and be a part of change that extends beyond business.

In-house technology workshops

Stay at the forefront of technology. Dive deep into topics, refine your skills, and learn from peers through our regular tech workshops. 

Explore the Heartbeat of CSHARK

Discover the essence of our guilds’ expertise, advanced tools and tech stack, and our real-world successes. Delve into impactful case studies and hear genuine insights from our team

Get to Know How We Work
CSHARK

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Explore our diverse portfolio to witness a blend of pioneering financial & regulatory solutions, next-gen manufacturing, and innovation examples.
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