Senior .NET Core Developer

Pulsetto•Capon Bridge, WV

1d•€5,000 - €5,500•Hybrid

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.