Full Stack Developer jobs in London

Company: JFA Medical Ltd

Location: 8 Devonshire Square, London, EC2M 4YJ

Overview

JFA Medical is a medical supply company focused on delivering innovative healthcare products and building intelligent systems that improve the efficiency, reliability, and scalability of the medical supply chain.

We are seeking a Senior Software Engineer to help design, develop, and scale the software systems that power our operations. This role is central to building cloud-native platforms and internal tools that support logistics, inventory management, automation, and operational decision-making across the business. Working primarily within AWS and Node.js environments, you will contribute to the architecture, development, deployment, and ongoing optimisation of critical systems used throughout the company.

Key Responsibilities and Accountabilities

• Lead the design and development of software that meets complex product and business needs, primarily building scalable backends with Node.js and the Serverless Framework.
• Review and give constructive feedback on others’ code to ensure best practices in modern cloud-native development.
• Deliver work to successful completion across the immediate team.
• Write appropriate tests using automated test-driven techniques for ensuring code quality and coverage.
• Integrate the software with monitoring, logging, and support tools within the AWS ecosystem (e.g., CloudWatch, X-Ray).
• Ensure software works optimally and securely in its operating environment, managing cloud deployments and infrastructure as code.
• Write, review, and take responsibility for technical documentation.
• Lead troubleshooting and resolution of issues throughout the product life cycle, including out-of-hours support for incident resolution.
• Participate in and lead as required, the team's agile planning and delivery process.
• Participate in and help improve the team’s software development methodologies such as pairing, code and documentation reviewing, and continuous delivery pipelines.
• Work with project, product, and technical leads to design software and create implementable specifications and tasks at feature and component level.
• Work with third-party providers where necessary offering direction, support, and documentation.
• Mentor and coach more junior staff. Provide technical leadership and direction to colleagues. Line management of 1-2 software engineers (if appropriate).
• Keep informed of existing and new technologies, introducing them where appropriate to enhance our operational technology stack.

Knowledge, Skills, Training, and Experience

Essential

• Experience writing and maintaining large scale, robust production software in a fast-changing environment with rapid release cycles.
• Expertise in Node.js and its associated frameworks/ecosystem.
• Extensive experience with Amazon Web Services (AWS), including designing, deploying, and maintaining cloud-native applications utilizing the Serverless Framework (e.g., AWS Lambda, API Gateway, DynamoDB).
• Competence in database design and optimization, with specific expertise in relational databases using Amazon RDS (PostgreSQL, MySQL, etc.).
• Expertise with one or more mainstream development and deployment tool chains (IDE, SCCS, CI/CD pipelines).
• Expertise in web architecture and key technologies: Hypertext Transfer Protocol (HTTP), Domain Naming System (DNS), and distributed microservices design.
• Expertise in test-driven development (TDD), broader testing, and QA concerns.
• Expertise in developing for operational and non-functional concerns (monitoring integration, performance testing, scale, availability and resilience, security considerations).
• Experience of project working and professional software development processes, including Agile.
• Competence in translating product requirements into technical solutions.
• Experience in using software design patterns effectively.
• Effective leadership and collaboration inside and beyond the team. The ability to influence diverse stakeholders effectively.
• Takes responsibility for delivering work to completion across the team.
• Technical Lead on at least one medium/large sized project (3 months+).

Desirable

• Experience of working on multiple projects or codebases concurrently.
• Software engineering, computer science degree or equivalent experience.
• Experience of mentoring and supporting less experienced members of the team.
• Background or interest in supply chain logic, logistics, or med-tech industries.

Benefits include:

• Free coffee and tea
• Free beer taps
• Nice office environment
• Central Liverpool Street location
• Ping Pong table
• Football table

Working Hours: Monday to Friday, 9:00 AM - 5:00 PM, totaling 37.5 hours per week with a 30-minute lunch break.

JFA Medical offers a vibrant, challenging, and supportive work environment where innovation and creativity are encouraged, and hard work is recognized and rewarded. Come and join our passionate team and kick-start your career journey with us!

Pay: £100,000.00 per year

Benefits:

• Casual dress
• Company pension

Work Location: In person