Mid/Senior Golang Developer (AI)

Kryptonim is revolutionizing the crypto industry as a fiat onramp provider.

We’re a platform where users can easily exchange fiat currency for cryptocurrency. Merging key aspects of the crypto and fiat world, such as Know Your Customer (KYC) protocols, risk management, diverse payment methods, and substantial crypto liquidity.

Kryptonim ensures a user-friendly and secure payment experience. This approach aligns with our mission to make the world of digital assets accessible and secure, simplifying crypto purchases and fostering a transparent cryptocurrency culture.

We're looking for a Mid/Senior Golang Developer (AI Native) to join our tech team at Kryptonim.

Due to the characteristics of our solutions, we are looking for a person who is quick to learn, and open to unconventional solutions. We choose tools for tasks, not the other way around! We value someone who is independent, proactive, and enjoys testing new technologies. If you like to create things from scratch and want to shape the product actively, this offer is for you! 🙌

We offer a B2B contract with a competitive salary range of 22k – 26k net+vat PLN, depending on your experience.

You will join remote team with a possibility to work from a Warsaw office.

Your Responsibilities

• Core Engineering: Design, develop, and scale robust applications using Go.
• Workflow Evolution: Actively use and refine AI-assisted development to ship high-quality code faster and more effectively.
• System Architecture: Maintain technical excellence and high performance while evolving our architecture to support intelligent features.
• Mentorship & Quality: Participate in code reviews and write comprehensive tests, ensuring that code meets high industry standards.
  
  

We’re Looking For Someone With 👀

• High technical autonomy: You'll own architectural and implementation decisions, which means you need to independently evaluate trade-offs, compare approaches, and commit to the most viable solution with confidence.
• Ownership mindset: You naturally take care of features and entire services end to end.
• Product Thinking: You don't just build features; you understand the business "why" behind them.
• Solid Backend Foundation: At least 4 years of experience in backend development (any language) and at least 2 years of commercial experience with Go.
• The AI Edge: You use AI tools daily and go beyond autocomplete - think autonomous agents, multi-step workflows, tool integrations, and using AI to a bigger extent than just generating boilerplate. You stay current with what's possible and actively push the boundary of how AI fits into your development process.
• Database Knowledge: Experience with PostgreSQL beyond basic CRUD - schema design, migration management, views, query optimization. Comfortable with an ORM without losing touch with the SQL underneath.
• API Design: Deep understanding of HTTP, REST, and building scalable interfaces.
• Security as a default: You understand the need for timing-safe comparisons, replay prevention, encryption at rest. Security isn't a phase - it's how we write code.
  
  

Nice To Have 👌

• Web3 familiarity: EVM basics, ERC-20 transfers, on-chain event monitoring, wallet-based auth. No Solidity required, but you understand what's happening on-chain and why the backend cares.
• Fintech Knowledge: Experience in banking or fintech products is a big plus.
• Cloud & DevOps: Experience with Docker, K8s, and cloud environments (AWS/GCP).
• Automation: Familiarity with CI/CD processes and a drive to automate the mundane.
• Understanding of async processing: Job queues, background workers, retry and dead-letter strategies, event-driven patterns. You know why "fire and forget" doesn't work in production.
• Automation: Familiarity with CI/CD processes and a drive to automate the mundane.
  
  

Our benefits see what perks we've prepared for you!

Growth support 🌱

As the company grows, so does your role, ensuring your voice matters in strategic decisions. Participate in enriching feedback sessions, with limitless access to educational resources for your personal and professional development. Receive regular feedback during 1–on–1 meetings, we’re creating a culture based on continuous improvement.

Health & Wellbeing 🧘‍♀️🧘‍♂️

We care about our employees’ health. We offer private medical care, in-office diagnostic tests, and a Multisport card. We believe in mixing business with pleasure, and so there are also sports activities available to our employees!

Community 🥳

We believe in a culture of appreciation. Attend industry conferences such as Digital Dragons, NBX, or GiC. We organize office theme parties, contests, and integration events as well as provide funds for group outings.

Recruitment process 🤝

Our recruitment process is designed to be transparent and engaging, ensuring we find the right match for our team and projects.

Here’s What You Can Expect

• Apply Online
• Submit your application on our website and fill out the accompanying form.
• HR call
• A brief conversation with our HR team to learn more about your background and interests. This is the first personal touchpoint on your journey with us.
• Home assignment
• Softskills & Tech Interview & AI tools
• We will schedule a meeting to discuss your professional experiences and expectations. You’ll also tackle problems similar to those you would encounter in your potential role, allowing us to assess your problem-solving skills.
• Offer of Cooperation
• Shortly after our meeting, if we decide to proceed, you will receive an offer from us to start our collaboration!
  

We look forward to reviewing your application and potentially welcoming you to our team! 🥳