Senior Software Engineer
Senior Software Engineer

Senior Software Engineer

Full-Time 36000 - 60000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead technical architecture and develop high-performance systems in AI.
  • Company: Join a cutting-edge AI startup pushing the boundaries of superintelligence.
  • Benefits: Competitive salary, professional growth, and a dynamic multicultural team.
  • Why this job: Shape the future of AI and make a real-world impact.
  • Qualifications: 5+ years in backend development with strong mentorship skills.
  • Other info: Hybrid role in Paris or London with travel opportunities.

The predicted salary is between 36000 - 60000 £ per year.

About H exists to push the boundaries of superintelligence with agentic AI. By automating complex, multi‑step tasks typically performed by humans, AI agents will help unlock full human potential.

About the Team

The Product Engineering team is responsible for developing H’s Enterprise Platform, providing all the tools and services to support critical operational use‑cases for our customers. Our platform includes key services, from executing computer‑use agents at scale, to orchestrating complex workflows and providing a complete observability, troubleshooting and evals suite of tools. Our Product Engineering team is at the heart of our company’s development, bridging the gap between AI research and real‑world impact, and works closely with all parts of the organization.

Key Responsibilities

  • Define and lead technical architecture, design, and long‑term engineering roadmap.
  • Develop and maintain complex, high‑performance, and scalable systems.
  • Mentor and guide engineers across multiple teams, fostering technical excellence.
  • Conduct thorough code and design reviews, ensuring quality and security best practices.
  • Collaborate with Research, Product, and other stakeholders to deliver impactful solutions.
  • Drive improvements in system reliability, scalability, and observability.
  • Establish and enforce engineering standards, tooling, and processes.
  • Champion technical innovation and proactively address technical debt.

Requirements

Technical skills

  • Previous demonstrable role(s) as Senior Software Engineer with relevant set of responsibilities and achievements.
  • Strong 5+ years of experience in backend development (Python & Golang preferred).
  • In-depth experience with distributed systems or cloud computing, preferably in AWS.
  • Experience building and shipping end to end solutions.
  • Experience building APIs (REST and/or GraphQL) and integrating with external services.
  • Expertise in relational and non‑relational databases.
  • Experience working with message queueing technologies (SQS/RabbitMQ/Kafka/etc.).
  • Solid understanding of coding standards, architectural patterns and test frameworks.
  • Expertise in instrumentation, observability and monitoring.

Soft skills

  • Mentorship & Influence - You inspire and elevate engineers across teams - you are a true force multiplier.
  • Cross-Functional Communication - You communicate effectively with engineers and business leaders, switching between technical and business contexts.
  • Technical Leadership – You are able to guide teams through complex technical decisions, balancing short-term delivery with long-term architectural health.

Location

Paris or London. This role is hybrid, and you are expected to be in the office 3 days a week on average. Please expect some travel between offices on a reasonable cadence (e.g., every 4-6 weeks).

What We Offer

  • Join the exciting journey of shaping the future of AI, and be part of the early days of one of the hottest AI startups.
  • Collaborate with a fun, dynamic, and multicultural team, working alongside world‑class AI talent in a highly collaborative environment.
  • Enjoy a competitive salary.
  • Unlock opportunities for professional growth, continuous learning, and career development.

If you want to change the status quo in AI, join us.

Senior Software Engineer employer: H Company

At H, we are committed to pushing the boundaries of superintelligence with agentic AI, making us an exceptional employer for those passionate about technology and innovation. Our hybrid work model in vibrant cities like Paris or London fosters a dynamic and multicultural environment, where you can collaborate with world-class talent while enjoying competitive salaries and ample opportunities for professional growth. Join us to be part of a transformative journey in AI, where your contributions will have a real-world impact.
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Contact Detail:

H Company Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer

✨Tip Number 1

Network like a pro! Reach out to folks in your industry on LinkedIn or at meetups. 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 or GitHub repository showcasing your projects and contributions. This gives potential employers a taste of what you can do, especially in backend development.

✨Tip Number 3

Prepare for those interviews! Brush up on your technical knowledge and be ready to discuss your experience with distributed systems and cloud computing. Practice common coding challenges to keep your skills sharp.

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are genuinely interested in joining our team.

We think you need these skills to ace Senior Software Engineer

Backend Development
Python
Golang
Distributed Systems
Cloud Computing
AWS
API Development
REST
GraphQL
Relational Databases
Non-Relational Databases
Message Queueing Technologies
SQS
RabbitMQ
Kafka
Coding Standards
Architectural Patterns
Test Frameworks
Instrumentation
Observability
Monitoring
Mentorship
Cross-Functional Communication
Technical Leadership

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that align with the Senior Software Engineer role. Highlight your backend development experience, especially with Python and Golang, and don’t forget to mention any work with distributed systems or cloud computing.

Craft a Compelling Cover Letter: Your cover letter is your chance to show us your personality and passion for AI. Share why you’re excited about the role and how your previous experiences have prepared you to contribute to our Product Engineering team.

Showcase Your Technical Skills: In your application, be sure to detail your expertise in building APIs, working with databases, and using message queueing technologies. We want to see how you’ve tackled complex technical challenges in the past!

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’re considered for this exciting opportunity to shape the future of AI with us!

How to prepare for a job interview at H Company

✨Know Your Tech Inside Out

Make sure you’re well-versed in the technical skills listed in the job description, especially backend development with Python and Golang. Brush up on distributed systems and cloud computing, particularly AWS, as these are crucial for the role.

✨Showcase Your Problem-Solving Skills

Prepare to discuss specific examples where you've tackled complex technical challenges. Highlight your experience in building APIs and integrating with external services, as well as how you've improved system reliability and scalability in past projects.

✨Demonstrate Leadership and Mentorship

Be ready to talk about your experience mentoring other engineers and how you've influenced teams positively. Share instances where you’ve guided teams through tough technical decisions, showcasing your ability to balance immediate needs with long-term goals.

✨Communicate Effectively

Practice switching between technical jargon and business language. You’ll need to communicate with both engineers and business leaders, so being able to articulate your thoughts clearly and concisely is key to making a great impression.

Senior Software Engineer
H Company

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