Senior Software Engineer - Backend (Fintech)

Placements24; Southampton; Remote; GBP 90,000 - 150,000; Full time

Benefits offered by this job

Stock options

Fully remote

Health insurance

Retirement plan

Development budget

Career growth

Virtual team events

Job summary

Placements24 is seeking a Senior Software Engineer (Backend) for a remote role across platforms. You will design, build, and optimize high-performance services powering our fintech applications, with a focus on reliability, scalability, and clean code.

Collaborate with frontend, product, and QA teams in an agile setup. You will mentor juniors, contribute to architecture decisions, and help advance our distributed systems, security practices, and cloud deployments.

Qualifications

• Bachelor's or Master's degree in Computer Science, Engineering, or related field.
• Minimum of 5 years of backend development experience.
• Strong knowledge of RESTful APIs and microservices.
• Experience with cloud platforms and containers (Docker, Kubernetes).

Responsibilities

• Design, build, and maintain efficient, reusable backend code.
• Develop and integrate APIs for financial services and platforms.
• Implement security and data protection measures in line with industry standards.
• Optimize applications for speed, scalability, and responsiveness.
• Collaborate with frontend developers to connect UI with server-side logic.
• Write unit and integration tests to ensure code quality.
• Participate in code reviews and provide constructive feedback to peers.
• Troubleshoot and debug across development, test, and production environments.
• Contribute to architectural decisions and technology stack choices.
• Mentor junior engineers and promote best practices in software development.

Skills

Backend development

Distributed systems

RESTful APIs

Java

Python

Education

Bachelor's degree in Computer Science, Engineering, or related field

Master's degree (optional)

Tools

Docker

Kubernetes

AWS

Azure

GCP

Job description

About the Role

Our client, a leading Fintech innovator, is seeking a talented Senior Software Engineer specializing in backend development. This role is fully remote, offering the flexibility to work from anywhere. You will be responsible for designing, developing, and maintaining robust, scalable, and high-performance backend systems that power our cutting-edge financial applications. This involves collaborating with cross-functional teams, including frontend developers, product managers, and QA engineers, in an agile environment. We are looking for engineers with a passion for clean code, distributed systems, and a deep understanding of the challenges within the financial technology space. Our remote-first culture emphasizes collaboration, innovation, and continuous improvement, supported by best‑class tools and communication platforms. The ideal candidate will have extensive experience in backend development, a strong grasp of software architecture principles, and a commitment to delivering high‑quality solutions. While the role is remote, a familiarity with the financial landscape of Randburg, Gauteng, ZA can provide useful context.

Key Responsibilities

• Design, build, and maintain efficient, reusable, and reliable backend code.
• Develop and integrate APIs for various financial services and platforms.
• Implement security and data protection measures in line with financial industry standards.
• Optimize applications for maximum speed, scalability, and responsiveness.
• Collaborate with frontend developers to integrate user-facing elements with server-side logic.
• Write comprehensive unit tests and integration tests to ensure code quality.
• Participate in code reviews, providing constructive feedback to peers.
• Troubleshoot and debug issues across development, test, and production environments.
• Contribute to architectural decisions and technology stack selection.
• Mentor junior engineers and promote best practices in software development.

Requirements

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Minimum of 5 years of professional experience in backend software development.
• Proficiency in one or more backend programming languages such as Java, Python, Go, or C#.
• Strong experience with relational databases (e.g., PostgreSQL, MySQL) and/or NoSQL databases.
• Solid understanding of RESTful API design and microservices architecture.
• Experience with cloud platforms (AWS, Azure, or GCP) and containerization technologies (Docker, Kubernetes).
• Familiarity with financial technologies and concepts is highly desirable.
• Strong problem‑solving skills and ability to work with complex systems.
• Excellent communication and collaboration skills, particularly in a remote setting.

Benefits

• Highly competitive salary and stock options.
• Fully remote work environment with flexible hours.
• Comprehensive health, dental, and vision insurance.
• Retirement savings plan with company contributions.
• Generous professional development budget.
• Opportunities for significant career growth within a fast‑paced Fintech company.
• Regular virtual team‑building activities.