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Open nowPosted 44 days ago

Senior Full-Stack Developer (.NET / React)

saltsquare3 open roles

Where
Tuzla/Sarajevo, Federacija Bosne i Hercegovine, Bosnia and Herzegovina
Work mode
Hybrid
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Your applicationOpen nowSenior Full-Stack Developer (.NET / React)saltsquare · Tuzla/Sarajevo, Federacija Bosne i Hercegovine, Bosnia and Herzegovina

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on saltsquare's own form.

The reply lands in your private mailbox

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The clock on this job

Early applications get read.

7.8% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 1.6%1 day
  2. 3.4%3 days
  3. 7.8%7 days
  4. 14.3%14 days
  5. 33.7%30 days
This job: posted 44 days ago

The posting

Salt Square is a growing outsourcing company providing high-quality software development services to clients across a wide range of industries. Our team is composed of skilled and dedicated professionals delivering innovative solutions that meet and exceed client expectations.

Our mission is to build reliable, scalable, and future-ready digital solutions tailored to each client’s unique business needs. We foster a team-first culture where collaboration, continuous learning, and technical excellence are core values. From supporting startups in launching their first products to helping global enterprises scale their operations, we strive to deliver outstanding value on every project.

We are looking for a strong Senior .NET/React Developer to join our engineering team. The primary focus is backend development in .NET Core/C#, with regular contributions to the React/TypeScript frontend. You will be expected to drive architectural decisions, set technical direction, mentor mid-level developers, and ship production-quality code across the full stack.

Typical Responsibilities

  • Develop and maintain full-stack features with a backend-heavy split (roughly 70/30 .NET Core to React)
  • Design, build, and document RESTful APIs consumed by web clients
  • Drive architectural decisions and take ownership of technical direction within the team
  • Mentor mid-level developers, conduct code reviews, and uphold engineering standards
  • Identify and resolve performance bottlenecks, technical debt, and reliability issues proactively
  • Participate in Agile sprint ceremonies, contribute to estimation, and communicate blockers and risks early
  • Leverage AI-augmented development practices to accelerate delivery and improve code quality
  • Deep proficiency in .NET Core, C#, and ASP.NET Core Web API, with a track record of building and scaling backend services in production
  • Strong working knowledge of React.js and TypeScript, able to build, maintain, and review frontend code with confidence
  • Experience with SQL databases (PostgreSQL or SQL Server), including query optimization, schema design, and performance tuning
  • Hands-on experience with Entity Framework Core or equivalent ORM, including migrations and complex query patterns
  • Proven ability to design, build, and document RESTful APIs with attention to versioning, error handling, and contract-first approaches
  • Solid understanding of software design patterns, SOLID principles, and clean architecture
  • Version control with Git and experience with collaborative branching strategies
  • Agile/Scrum methodology experience with clear communication and the ability to unblock others
  • Active use of AI tools in daily development workflows (Copilot, Claude, Cursor, or similar), not just familiarity but demonstrated integration into how they write, review, and ship code

Differentiators

  • Experience with Microsoft Azure (App Service, Key Vault, Azure DevOps), though equivalent cloud experience (AWS, GCP) transfers well
  • Comfortable with Docker: writing Dockerfiles, multi-stage builds, and running services locally in containers
  • Ability to maintain or contribute to CI/CD pipelines (GitHub Actions, Azure DevOps Pipelines), not expected to own pipeline infrastructure but should not be blocked by it
  • Familiarity with microservices architecture and event-driven design patterns
  • Experience with frontend design systems, component libraries, or TailwindCSS/ShadCN
  • Familiarity with GoLand IDE and experience using it for Go development, debugging, and project management.

What we offer:

  • Competitive salary and benefits package.
  • 23 days of paid leave.
  • Opportunities for professional growth and development.
  • A collaborative work environment with talented and dedicated colleagues.

We offer a supportive work environment where your ideas are heard and your contributions make a real difference. If you’re passionate about building great products, we’d be excited to have you on board.

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  1. A CV for this posting

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  2. 25 readers review it

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    The review screen in CV Rocket: how each CV was read, round by round.

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