Software Engineer – Backend (On-site)

JR United Kingdom; Crawley; On-site; GBP 70,000 - 90,000; Full time

Job summary

A stealth-mode AI laboratory is searching for a Software Engineer – Backend to join their Crawley team. This role involves designing scalable systems while collaborating with the Machine Learning team. Ideal candidates are experienced in cloud computing, eager to learn, and possess strong problem-solving skills.

Benefits

28 days + public holidays leave

Opportunities for growth and progression

Competitive salary and equity

Qualifications

• 2-3 years of back-end development experience.
• Experience with cloud platforms and containerization.
• A passion for learning and solving complex problems.

Responsibilities

• Design and develop highly scalable, fault-tolerant systems.
• Mentor colleagues to improve technical standards.
• Collaborate with the team to set best practices.

Skills

Problem solving

Collaboration and communication

Cloud-native skills

Tools

C#

AWS

Terraform

Docker

Postgres

Job description

Social network you want to login/join with:

Software Engineer – Backend (On-site), Crawley, West Sussex

Location: Crawley, West Sussex, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Views:

4

Posted:

31.05.2025

Expiry Date:

15.07.2025

Job Description:

Location: London (Liverpool Street)

Employment Type: Full-time and Permanent

Remuneration (London; On-site): £70–90k Base Salary + Discretionary Bonus + Equity

We are a stealth-mode AI laboratory researching and developing Machine Learning models.

The founding team consists of Cambridge graduates and former engineers at Microsoft, Bloomberg, and Goldman Sachs. Backed by prominent investors from the US and UK, including institutional VC funds and C-level executives of global tech companies.

The role involves designing and developing backend infrastructure for Machine Learning workloads. You will work closely with the Machine Learning team but are not required to have a background in Machine Learning. This is an applied role, seeking a software engineer experienced in cloud computing and distributed systems.

In this role, you will:

• Design and develop highly scalable, fault-tolerant, and event-driven systems.
• Take ownership of tasks with a high degree of autonomy.
• Collaborate with the founding team to contribute to best practices, standards, and company culture.
• Mentor colleagues to raise the company's technical standards.
• Utilize AWS extensively, managed with Terraform.
• Write services in C# (.NET 9) and deploy via ECS or Lambda using GitHub Actions.
• Work with Postgres, SNS/SQS, and Redis.
• Maintain good end-to-end test coverage and confident deployments.

What we are looking for:

• Back-end development experience: 2-3 years in developing reliable, scalable systems with object-oriented programming.
• Cloud-native skills: Experience deploying to cloud platforms (AWS, GCP, Azure), containerization (Docker), infrastructure-as-code (Terraform), and observability tools (Datadog, Grafana).
• Curiosity: Eagerness to learn and grow.
• Problem solving: Strong analytical skills and attention to detail.
• Collaboration and communication: Excellent interpersonal skills for working with technical and non-technical stakeholders.

We recognize no candidate checks all boxes — passion for solving complex challenges and willingness to learn are key.

Nice to have:

• Machine Learning experience: Generative models, LLMs, multi-modal models, Deep Learning.
• Open-source contributions: Experience in open-source projects.
• Startup experience: Familiarity with startup environments.
• Experience in cutting-edge AI research environments.
• Official role of “Founding Engineer” — make an impact from day one.
• Competitive salary, equity, and benefits.
• 28 days + public holidays leave.
• Opportunities for growth and progression.
• Work on impactful engineering challenges.
• Engage with high-profile customers and partners.