Senior Go Engineer - Payment Gateway SolutionsAt Mellifera, we develop innovative IT solutions for Payment Service Providers (PSPs), Electronic Money Institutions (EMIs), and neobanking platforms in the European Union and the United Kingdom. Our team combines deep industry knowledge with cutting-edge technologies to ensure seamless operation of payment systems and compliance with regulatory standards. Our flagship products include multifunctional payment gateways and AI-driven compliance platforms, supporting global expansion and digital transformation in financial services.Your impact :You will be involved in creating a secure and efficient digital system that facilitates online transactions by connecting e-commerce websites or mobile applications with financial institutions, allowing for the seamless transfer of funds between customers and merchants. You will be integrating various payment methods, such as credit cards, digital wallets, and alternative payment options, to offer customers a convenient and flexible payment experience, ultimately enabling businesses to securely accept payments online and manage their financial transactions effectively.We are an agile, horizontal team within a larger holding company, focused on developing cutting-edge payment gateway solutions and other fintech products. We work closely with internal clients who provide banking, acquiring, and electronic money services. Our team values collaboration, technical excellence, and a results-driven approach.We're seeking an experienced Go engineer to join our team and contribute significantly to our payment gateway product. The ideal candidate will bring deep technical expertise, a collaborative mindset, and the ability to influence and mentor team members through knowledge and experience rather than formal authority.RequirementsAround 5-7 years of experience in Go development with a strong focus on backend systems and around 5 years of experience in working with fintech applicationsDeep understanding of distributed systems, microservices architecture, and API design, REST / RPC transportsExtensive experience with SQL and NoSQL databases, message brokers (Kafka, NATS), and caching systemsKnowledge of CI / CD practices and tools, ideally GitLabProven ability to mentor and influence team members through expertise and collaborationStrong communication skills, with the ability to articulate complex technical concepts to both technical and non-technical stakeholdersExperience working in horizontal team structures and comfort with shared decision-making processesFluency in both written and spoken English and RussianPreferred QualificationsExperience with AWS cloud platformGood knowledge of security best practices in financial applicationsKnowledge of regulatory requirements in the fintech space (e.G., PCI DSS, GDPR)Experience with performance optimization and high-availability systemsTrack record of successful collaboration with business stakeholdersKey ResponsibilitiesDesign and implement robust, scalable solutions for our payment gateway and related fintech products using GoCollaborate closely with internal clients to understand strategic directions and translate business requirements into technical solutionsProvide technical mentorship to team members, fostering growth and capability development across the teamChampion best practices in code quality, testing, and documentationContribute to architectural decisions, ensuring scalability, security, and performance of our systemsActively participate in and often lead technical discussions, promoting a culture of knowledge sharing and collective decision-makingStay updated with the latest trends in fintech and payment technologies, proposing innovations aligned with our strategic goalsBenefitsOpportunity to shape the future of fintech solutions within a growing companyCollaborative, horizontal team structure that values your expertise and ideasChance to work on high-impact projects with internal clients in the banking and financial services sectorContinuous learning and development opportunitiesCompetitive salary and benefits packageFlexible work arrangementsSalary : 70 000-90 000 EUR gross annually.If you're passionate about fintech, love solving complex problems, and thrive in collaborative environments where your technical expertise can shine, we want to hear from you!Seniority level:Mid-Senior levelEmployment type:Full-timeJob function:Information TechnologyIndustries:IT Services and IT Consulting#J-18808-Ljbffr