myPOS is an innovative fintech company serving small and medium-sized business clients across the European Economic Area, Switzerland and the UK. It provides easy and convenient in-store, online and on-the-go payment solutions to more than 200,000 businesses in over 35 European countries. With 20 locations across Europe, myPOS boasts a team of nearly 750 employees.

As we continue shaping the future of payments, we are looking for an experienced Performance Engineer to join our growing team.

We’re looking for a Performance Engineer to optimize the performance, scalability, and reliability of myPOS systems. Your expertise in identifying and resolving bottlenecks will ensure seamless operations, especially in complex environments like card payment processing.

What you’ll do:

Performance Testing and Analysis

• Design, implement, and execute comprehensive performance testing strategies, including load, stress, capacity, scalability, and endurance testing, to evaluate system behavior under varying conditions.
• Leverage industry-standard tools such as JMeter, LoadRunner, and Gatling to simulate realistic user loads and assess application performance. Expertise in JMeter is highly advantageous.
• Analyze performance metrics and system logs to identify bottlenecks, latency issues, and failure points, ensuring root cause identification.
• Prepare in-depth performance testing reports, providing actionable insights and recommendations for improvements.

Optimization and Troubleshooting

• Collaborate with cross-functional teams—including Development, Issuing, Acquiring POS Device Development, Bank Transfers, Data, and IT teams—to diagnose and resolve performance-related challenges effectively.
• Optimize test scenarios, scripts, and code while assisting teams in enhancing application code, database queries, and infrastructure configurations to boost overall system performance.
• Partner with the Architecture team to develop and implement tuning strategies for hardware, software, network, and database components to meet business performance requirements.

Monitoring and Benchmarking

• Establish and maintain performance monitoring tools and real-time dashboards in collaboration with the IT team, enabling continuous insights into system performance.
• Define and enforce performance benchmarks and standards, conducting regular tests to ensure compliance.
• Develop and report performance KPIs to stakeholders, providing transparency and accountability.

Architecture and Scalability

• Work closely with Architecture and Platform Development teams to design scalable, high-performance solutions aligned with organizational growth objectives.
• Contribute to technical infrastructure capacity planning with the IT team, ensuring the systems are equipped to handle projected growth and peak usage scenarios.
• Evaluate third-party integrations and APIs to assess and mitigate performance risks.

Architecture and Scalability

• Document performance test plans, results, and remediation strategies comprehensively, ensuring clear communication of findings and solutions.
• Provide training and mentorship to Development teams, promoting adherence to performance best practices and methodologies.

What you bring:

• Minimum 5 years in performance and automation testing. 
• A bachelor’s degree in CS, IT, or a related field.
• Proficiency in tools like JMeter, LoadRunner, Gatling, Neoload, OctoPerf, or similar.
• Experience with programming/scripting languages like Java, Python, C#, or JavaScript.
• Familiarity with tools like Dynatrace, AppDynamics, New Relic, or other APM tools will be considered a strong advantage.
• Strong knowledge of SQL and database performance tuning, including indexing, query optimization, and execution plans will be considered a strong advantage.
• Hands-on experience with tools like Grafana, Prometheus, ELK, or Splunk for performance monitoring will be considered a strong advantage.
• Solid understanding of system architecture, including distributed systems, microservices, and cloud-native or hybrid cloud setups will be considered a strong advantage.
• Expertise in diagnosing network latency, I/O issues, and system resource contention and exhaustion will be considered a strong advantage.
• Knowledge of CI/CD tools like Jenkins, GitLab, or Azure DevOps and integrating performance tests into development pipelines will be considered a strong advantage.
• Strong analytical and problem-solving skills.
• Excellent communication skills to convey technical findings to non-technical stakeholders.
• Ability to work collaboratively across teams and with external vendors.
• Experience with public cloud platforms like GCP (preferred), AWS, Azure, and container orchestration tools like Kubernetes or Docker.
• Certifications in performance testing tools or relevant cloud certifications.
• Familiarity with security implications of performance optimizations.
• A personal style that demonstrates authority, commitment and consistency, and inspires trust and confidence.
• Fluent in English.

Why you should join myPOS:

• Vibrant international team operating in hi-tech environment
• Annual salary reviews, promotions and performance bonuses
• myPOS Academy for upskilling and training
• Unlimited access to courses on LinkedIn Learning
• Refer a-friend bonus as we know that working with friends is fun
• Individual training and development budget
• Teambuilding, social activities and networks on multi-national level

What we offer: 

• Excellent compensation package
• 25 days annual paid leave (+1 day per year up to 30)
• Full “Luxury” package health insurance including dental care and optical glasses
• Meal vouchers of 160 BGN per month 
• Onsite fitness, bowling, and relax areas (Varna) or free of charge Multisport card (Sofia)
• Free coffee, snacks and drinks at the office

About us:

Founded in 2014, the myPOS platform gives micro businesses and SMEs everything they need to accept payments and manage various aspects of their business, including selling remotely, accelerating cash flow and enabling e-commerce. Business owners receive a free multicurrency merchant account and dedicated IBAN per currency, a business debit card, digitised business management capabilities, and a powerful platform to help them sell anywhere.

In 2024, myPOS was acquired by Advent International, one of the largest and most experienced global private equity investors. With Advent’s help, myPOS has ambitious plans to accelerate its growth and capture the opportunities of the market to become the leader in the SME payment industry.

For its continued innovation in payments, myPOS has won many prestigious awards including Best Business Payments System at the PayTech Awards in 2024, the Point of Sale Innovation at FinTech Breakthrough in 2023 and 2024, and Best Use of Mobile by FStech in 2022. For more information, please visit www.mypos.com.

Apply by filling in the form below and send your CV in English!

myPOS is committed to providing equal employment opportunities. All qualified candidates will be considered for employment without discrimination based on age, ancestry, colour, marital status, national origin, physical or mental disability, medical condition, veteran status, race, religion, sex, sexual orientation, gender identity or expression, or any other characteristic protected by applicable laws, regulations, and ordinances.

Your application will be confidentially reviewed in line with the General Data Protection Regulation (GDPR). Personal information will be used solely for the job application and will be stored for a period needed by the application process. Only short-listed candidates will be contacted. Good luck!