Senior Software Engineer Jobs

Payhawk

Location:
Bulgaria, Sofia

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

To achieve our visionary goals, we are scaling up our robust engineering team and looking for a Full Stack Software Engineer to meet the compelling challenges we face. Our product consists of many services that are not limited to a single technology so it’s important that you are technology agnostic and eager to learn new stuff. You’ll be responsible for delivering entire, highly complex features to production. As part of a team of talented and highly experienced individuals, you’ll have the opportunity to shape everything. Our goal is to produce the best solution for our customers. Being part of the Payhawk team means that you’ll be developing a world-class product in the fast-growing fintech industry. We deliver an exceptional solution, and to continue doing so, we seek out the top 1% engineering talent.

Job Responsibility:

Lead the build of new product features and maintain existing ones by driving impactful engineering initiatives and owning end-to-end delivery
Participate in the full software development lifecycle, including frontend, backend, testing, deployment, and LLM-based functionalities where applicable, while contributing to the architecture and proposing scalable, sustainable solutions
Collaborate with product managers and designers to capture requirements and gain a strong business perspective on the features being implemented
Break down complex, ambiguous problems into well-scoped and clearly defined tasks, ensuring alignment with product and technical goals
Write scalable, high-performance, and maintainable code, ensuring testability, coverage, continuous integration, and backward compatibility
Own feature delivery from discovery through deployment and monitoring, proactively addressing blockers and risks with minimal supervision
Mentor and support other engineers through knowledge sharing, constructive feedback, and code reviews
Collaborate across teams to remove dependencies, foster alignment, and ensure the team’s work fits into the broader technical direction

Requirements:

Advanced programming experience and superior knowledge of programming languages and technologies: Node.js, TypeScript, PostgreSQL, Kubernetes, Docker, Google Cloud, React, React Native, Apache Kafka
Bachelor's degree in Computer Science (or related field)
6+ years of relevant work experience
Experience with agile processes, continuous delivery, and continuous integration
Ability to multitask, organize, and prioritize work
Exceptional integrity and work ethic

Nice to have:

Experience working with LLMs, AI-driven architectures, and autonomous agents, including vector databases, embedding models, and MLOps practices

What we offer:

Competitive compensation package based on experience
Stock options
30 days holiday paid leave
One week exchange policy to another Payhawk office (London, Berlin, Barcelona, Paris, Amsterdam and Vilnius)
Flexible working hours and opportunity to work from home
Regular team-wide events
Additional medical care
MultiSport card fully funded by us
Company office massages
Personal assistant service
Opportunity to use the Payhawk product (that is, essentially, built by you)

Additional Information:

Job Posted:
December 11, 2025

Employment Type:

Fulltime

Work Type:

Hybrid work

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Senior Software Engineer