Senior Software Engineer (AWS/Backend) - ref. d14603803
Cornspring is a high-growth start-up revolutionizing Family Office Services. Using our unique combination of innovative technology and data management excellence, we are building a cutting-edge AI-powered platform that integrates financial data, automates insights, delivers across web and excel-based applications and provides unparalleled insights and efficiency to Family Offices.
We specialize in generative AI (Gen-AI) and large language models (LLMs), offering Family Offices, Asset Owners, and UHNW clients a smarter, more efficient way to manage their financial data. Security, scalability, and innovation are at the core of what we do.
As a Senior Software Engineer, you will play a key role in designing and maintaining our cloud-native architecture, building scalable Python APIs, and shaping the future of AI-driven financial data solutions.
We pride ourselves on fostering a collaborative work environment where we prize creativity, excellence in engineering, a powerful focus and attention to problem-solving through great design.
For this position we require 2/3 days per week onsite in the Central London office.
What you will do:
- Own & develop backend services in Python and AWS, supporting our Web and Excel-based applications, with a focus on serverless solutions and infrastructure as code
- Architect & optimize AWS serverless infrastructure for scalability and security.
- Lead technical initiatives, collaborating with design & product teams to shape innovative AI-powered features.
- Implement CI/CD pipelines, monitoring, and security best practices.
- Optimize data processing workflows, ensuring performance across all services.
- Mentor & support junior developers, fostering best practices in code quality and system design.
Requirements
Essential Skills & Experience:
- 4+ years of experience in Python backend development.
- 2+ years working with AWS services (Lambda, API Gateway, S3, CloudFormation, Aurora/PostgreSQL, etc.).
- Strong expertise in serverless architectures & Infrastructure as Code (IaC).
- Experience deploying and scaling containerized applications.
- Hands-on experience with CI/CD pipelines, GitHub, and Agile environments.
- Ability to own solutions end-to-end in a fast-paced start-up environment.
Bonus Skills (Nice-to-Have, But Not Required):
- Familiarity with AWS Bedrock and working with LLMs & Gen-AI solutions.
- Security-focused mindset, understanding IAM, encryption, and data privacy best practices.
- Strong problem-solving skills with a mathematical or algorithmic background.
- Prior experience in financial technology, financial data management, or data-heavy applications.
- Build AI-powered financial data solutions that redefine an industry.
- Work in a fast-moving startup where your ideas have a direct impact.
- Hybrid work flexibility – 2/3 days in Central London, with remote options.
- Competitive salary & benefits package.
- Ownership & growth – opportunity to take leadership roles as we scale.
- Challenging, high-impact work with a small, agile, and highly talented team.