Senior Software Engineer developing reliable, scalable, and secure payment flows integrated with core banking. Join Luminor to build a local banking champion in Estonia.
About the role
- Senior Software Developer leading innovative technology solutions for various industries at Callibrity. Collaborating closely with clients to deliver scalable and effective software solutions.
Responsibilities
- As a Senior Software Developer, you are a leader by example, a subject-matter expert, and someone who influences strategic technical direction.
- You’ll work closely with key client stakeholders and use your experience to prove real business ROI through innovative, modern, and scalable technology solutions.
- Callibrity developers have longer-than-average tenures because the work is meaningful, the challenges are real, the engineering culture is strong, and we invest heavily in our people.
- Solve a wide range of technical problems by choosing the right language, framework, and tool for the job.
- Work directly with client stakeholders to accomplish shared goals and deliver clean, maintainable software.
- Communicate complex ideas clearly — both verbally and in writing.
- Proactively identify opportunities, issues, and challenges, and recommend actionable solutions.
- Demonstrate mastery of software development best practices (Agile, DevOps, Test Automation, CI/CD, TDD).
- Stay ahead of the curve by exploring emerging technologies including AI, Machine Learning, Cloud, and IoT.
- Thrive in environments with close collaboration among cross-functional teams.
- Earn client trust by consistently delivering value, regardless of title or seniority.
Requirements
- 6+ years of experience with web application development and/or SaaS platforms
- Extensive senior-level development experience with object-oriented languages (e.g., Java, C#, Python)
- Proven experience leading the technical delivery of complex and innovative business functionality
- Strong understanding of software engineering principles such as design patterns, algorithms, and data structures, and demonstrable application of each in recent projects
- A strong communicator and collaborative team player
- A proactive owner who takes accountability for code from development through production
- Solid understanding of test automation principles and a strong advocate for code quality
- Strong knowledge of performance engineering and performance testing
- Experience with integration technologies (RESTful APIs, messaging systems, etc.)
- Exposure to modern UI frameworks, especially React
- Experience contributing to highly configurable, metadata-driven platforms
Benefits
- Health/vision/dental insurance effective day 1
- 401(k) match vested immediately
- Annual training & conference stipend
- Paid parental leave
- Paid bench time
- Paid flex time for training, blogging, speaking engagements, and thought leadership
- PTO for vacations, holidays, and sick days
- Competitive industry salary
- Weekly lunch & learns
- Regular team-building events
- A small-company feel with the stability of a proven business
- High employee retention and satisfaction — consistently one of Cincinnati’s Best Places to Work
- Real work-life balance
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
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