Full Stack Senior Engineer

London based

We are looking for an accomplished Full Stack Senior Software Engineer to take ownership of the entire engineering lifecycle, from concept to production. In this role, you will be responsible for designing, building, deploying, and maintaining features and services that are scalable, reliable, and aligned with our business goals. You will work across both front-end and back-end development, taking an end-to-end approach to building and managing features. As a senior team member, you will influence technical direction, collaborate closely with stakeholders, and ensure high standards for code quality, performance, and operational readiness.

About Us

Sokin is a leading B2B financial services provider that enables global payments and receivables for businesses. Our mission: make cross-border transactions cheaper, faster and more transparent – at the best wholesale exchange rate.

We’re a new-age payments solution aiming to empower business trade cross-border with ease, with greater speed, and at reduced cost. Our clients can hold, send, receive and exchange over 75 currencies at a fixed rate through a single access point, as well as benefit from SokinPay’s integrated payment acceptance functionality. With a global infrastructure and industry-leading partners, we are rapidly becoming one of the biggest names in modern remittance.

Sokin has a rapidly increasing client base ranging from sports & entertainment to logistics, travel and more. We have grand plans and are looking to add to our already brilliant team to help us achieve our goals.

Key Responsibilities:

• Own the full lifecycle of software engineering, from initial design and development through deployment, monitoring, and maintenance in production.
• Collaborate with product managers, designers, and cross-functional teams to shape and refine feature requirements, ensuring alignment with business and user needs.
• Lead architectural decisions, ensuring that solutions are scalable, maintainable, and aligned with industry best practices.
• Drive the operational success of features by establishing monitoring, alerting, and support processes to ensure reliability and responsiveness.
• Mentor and guide junior developers, fostering a culture of ownership, accountability, and continuous improvement within the team.
• Participate in code reviews, ensuring that team members adhere to high standards for quality, security, and performance.
• Actively engage in troubleshooting and incident response to address production issues, continually learning from these experiences to improve future resilience.
• Design, develop, and maintain full-stack applications using Python, Flask, FastAPI, Angular, and SQL databases.
• Optimize application performance, troubleshoot and resolve complex technical issues.
• Stay current with industry trends and emerging technologies, advocating for their application when they benefit the organization.

Required Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
• Minimum of 10 years of professional software engineering experience, with a proven track record of end-to-end feature ownership and delivery in production environments.
• Familiarity with modern frameworks, cloud platforms, and CI/CD pipelines that support full lifecycle engineering.
• Strong ability to translate business requirements into technical solutions that are scalable and maintainable.
• Experience managing both the development and operational aspects of software, with a focus on performance, reliability, and scalability.
• Excellent communication skills with the ability to effectively collaborate across technical and non-technical stakeholders.
• A proactive mindset for identifying potential improvements, optimizations, and innovations.
• Prior experience in a senior role with responsibilities for mentoring or guiding other team members.

Benefits

• 28 days annual leave (not including public holidays)
• Birthday Leave
• Private Medical Insurance
• Hybrid working

Please note, candidates will need to have the right to work in the jurisdiction that they are looking to work in.

Sokin is an equal opportunities employer and committed to maintaining an inclusive work environment. As a growing global startup with bases across multiple countries, we were established on and continue to promote an agile, flexible working culture. Please reach out to discuss any accommodations you may require during the recruitment process.