Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Build and maintain backend services for innovative SaaS applications using modern tech stacks.
- Company: Join a fast-growing tech startup revolutionising critical industries with AI-powered solutions.
- Benefits: Competitive salary, share options, 25 days leave, private healthcare, and flexible working.
- Why this job: Make a real impact by solving complex challenges in essential industries with cutting-edge technology.
- Qualifications: Experience in Python/TypeScript and a passion for learning new technologies.
- Other info: Dynamic team culture with opportunities for growth and regular social events.
The predicted salary is between 36000 - 60000 £ per year.
We live in a world that runs on physical industries like energy, logistics, and manufacturing. These sectors are essential to our economy and daily lives, yet they are held back by inefficiencies, fragile legacy systems, and decades-old ways of working. This is not just a business problem; it is a societal one. When grids fail, supply chains stall, or factories falter, entire economies are disrupted. These companies face unique, complex challenges that typical software was never designed to solve. Cogna was founded to change this. Our mission is to give critical industries their own AI-powered Software Factory: a way to build and deploy bespoke digital tools that solve pressing operational challenges.
Since our launch in May 2023, we’ve seen incredible customer traction and revenue growth. We’re backed by leading VCs, including Notion Capital and Hoxton Ventures, and we’re building a world-class team to take on one of the most important challenges of our time. Tackling challenges at this scale takes people who are curious, adaptable, and motivated by impact. If our mission resonates with you, we encourage you to apply, even if your experience doesn’t match every requirement. We are committed to building a diverse team that reflects the industries and societies we serve.
Overview: Join a team that is redefining how software is built for critical industries. You will help build and maintain the backend services and integrations that power our SaaS applications, working with modern tech stacks and cutting-edge AI tools. This role is an opportunity to accelerate your growth: you will learn to build robust production systems and master AI-assisted development workflows, focusing on validating logic and delivering high-quality features that solve real-world problems.
What you’ll do:
- Build and maintain backend features and API integrations (Python, FastAPI, SQL).
- Adapt and extend pipelines and front-end outputs, validating automated components.
- Build connectors for APIs, files, and external systems.
- Support the integration of LLM-based capabilities with robust evaluation and monitoring.
- Use AI-assisted development tools to scaffold, refactor, and test code.
- Collaborate with Solution Strategists, Data Platform, Platform and Support teams.
What we’re looking for:
- We don’t expect you to have deep expertise in all these areas. We look for a solid foundation in backend engineering and a strong curiosity to learn the rest.
- Python/TypeScript experience (1+ years or strong personal projects); understanding of SQL and data modelling.
- Familiarity with (or keen interest in) agentic AI coding tools (e.g., Cursor/Codex/Claude Code) to plan, scaffold, refactor, and test.
- Experience with APIs (REST) required. Exposure to other systems like SFTP, SharePoint, or webhooks is a plus.
- Interest in or exposure to workflow orchestration (Temporal, Dagster).
- Basic familiarity with git, CI/CD concepts, Docker, or cloud platforms (Azure/AWS/GCP).
- Interest in AI and raising team AI skills.
What we offer:
- Competitive salary and share option plan.
- 25 days annual leave, plus public holidays.
- Excellent pension scheme, fixed at 7.5%.
- Private healthcare, including family cover and pre-existing conditions.
- Flexible hybrid working with 2 days per fortnight in our Farringdon office.
- Regular social events and offsites.
- Access to a gym and fitness classes in our office building.
Junior Backend Engineer (App Delivery) employer: Cogna Ltd
Contact Detail:
Cogna Ltd Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Junior Backend Engineer (App Delivery)
✨Tip Number 1
Network like a pro! Reach out to people in the industry, attend meetups, and connect with potential colleagues on LinkedIn. You never know who might have the inside scoop on job openings or can put in a good word for you.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your projects, especially those involving Python, APIs, or AI tools. This gives us a tangible way to see what you can do and how you tackle real-world problems.
✨Tip Number 3
Prepare for interviews by brushing up on common backend engineering questions and coding challenges. Practice makes perfect, so consider mock interviews with friends or use online platforms to get comfortable.
✨Tip Number 4
Don’t hesitate to apply through our website! Even if you don’t tick every box, we value curiosity and a willingness to learn. Your unique perspective could be just what we need to tackle those complex challenges.
We think you need these skills to ace Junior Backend Engineer (App Delivery)
Some tips for your application 🫡
Show Your Passion for the Mission: When writing your application, let us know why you’re excited about our mission to transform critical industries. Share any personal experiences or projects that align with our goals, as this will help us see your genuine interest.
Highlight Relevant Skills: Make sure to showcase your backend engineering skills, especially in Python and SQL. Even if you don’t tick every box, emphasise your curiosity and willingness to learn new technologies, as we value adaptability.
Be Authentic: Don’t be afraid to let your personality shine through in your application. We’re looking for team members who are curious and motivated by impact, so share your unique perspective and experiences that make you a great fit.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!
How to prepare for a job interview at Cogna Ltd
✨Know Your Tech Stack
Make sure you’re familiar with the technologies mentioned in the job description, especially Python, FastAPI, and SQL. Brush up on your knowledge of REST APIs and any relevant personal projects you've worked on. Being able to discuss your experience confidently will show that you're ready to hit the ground running.
✨Show Your Curiosity
Cogna values curiosity and adaptability, so be prepared to discuss how you've approached learning new technologies or solving complex problems in the past. Share examples of how you've used AI tools or any innovative solutions you've implemented. This will demonstrate your eagerness to grow and contribute to their mission.
✨Prepare for Collaboration Questions
Since the role involves working closely with various teams, think about your past experiences in collaborative environments. Be ready to share specific examples of how you’ve communicated effectively, resolved conflicts, or contributed to team success. This will highlight your ability to work well within a diverse team.
✨Ask Insightful Questions
At the end of the interview, have a few thoughtful questions ready about the company’s mission, the tech stack, or future projects. This shows your genuine interest in the role and helps you assess if the company aligns with your values and career goals. It’s a great way to leave a lasting impression!
