Senior .NET Core Developer

PulsettoCapon Bridge, WV
€5,000 - €5,500Hybrid

About The Position

Pulsetto is one of the fastest-growing wellness tech companies, recognized by Deloitte as the #1 Company to Watch in the Technology Fast 50 CE program. Despite its rapid growth and recognition, Pulsetto maintains a humble and fast-paced team environment focused on building the future of nervous system wellness. The company is expanding its team to support its next stage of global growth. This position is for a Senior .NET Core Developer who will be responsible for owning, optimizing, and scaling the company's backend infrastructure. The role emphasizes pure technical contribution, focusing on driving architectural decisions, writing high-performance code, and solving complex engineering challenges. It is ideal for an individual contributor who thrives with high autonomy, takes pride in end-to-end technical ownership, and enjoys building scalable systems in a dynamic environment.

Requirements

  • 5–7 years of professional experience in backend software development.
  • At least 4+ years specifically dedicated to intensive .NET Core development.
  • Deep production experience with microservices architecture and standard RESTful API design patterns.
  • Advanced knowledge of MySQL (or relational databases), including query optimization, indexing strategies, and database scaling.
  • Practical experience with containerization (Docker, Docker Compose).
  • Experience building automated CI/CD pipelines.
  • Bachelor's degree in Computer Science or a related engineering field is preferred, but equivalent hands-on experience is valued.
  • Ability to propose and drive technical solutions for complex backend problems independently.
  • Agility to adapt quickly to changing insights and translate data into engineering actions.
  • Strong communication skills to explain complex architectural decisions.

Nice To Haves

  • Deep expertise in performance profiling tools for .NET Core (e.g., dotTrace, BenchmarkDotNet).
  • Experience with AWS cloud infrastructure (EC2, S3, RDS, Lambda, ECS, or Elastic Beanstalk).
  • Hands-on experience with cloud-native relational databases like AWS Aurora or RDS for MySQL.
  • Experience managing Infrastructure as Code (IaC) via CloudFormation or Terraform.
  • Prior experience working within Agile/Scrum teams.

Responsibilities

  • Architect, develop, and optimize high-throughput, low-latency microservices and applications using .NET Core.
  • Create, document, and maintain secure RESTful Web APIs to support global user traffic.
  • Own and optimize the performance of the MySQL ecosystem, including query efficiency, schema design, query tuning, and data migrations.
  • Containerize applications using Docker and manage environments (local, staging, production-like) with Docker Compose.
  • Maintain, streamline, and improve automated deployment processes through CI/CD pipelines (GitLab, GitHub Actions, or Jenkins).
  • Implement, monitor, and optimize background workloads such as cron jobs, background workers, and scheduled tasks for asynchronous data processing.
  • Manage high-volume transactional communication and handle push notification integrations via OneSignal.

Benefits

  • Private health insurance after 6 months.
  • Hybrid model — 3 days in the Vilnius office or fully remote.
  • Work-from-anywhere flexibility: Ability to work from anywhere in the world for up to 40 days per year.
  • Opportunity to directly influence brand trust and organic growth at a global scale.
  • Collaboration with a world-class team across Europe and the US.
  • Office perks — free lunch 3x/week for the Vilnius team.
  • Additional vacation days based on tenure.
  • Birthday day off.
  • Pulsetto device to support your well-being.
  • A fast-growing, supportive environment where experimentation is the norm.
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