Senior Software Engineer

Senior Software Engineer

City of London Full-Time 43200 - 72000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Design and build foundational systems for our SaaS platform.
  • Company: Aries Global is a high-growth, founder-led group transforming the cloud ecosystem.
  • Benefits: Enjoy autonomy, collaborate with experts, and shape a fast-moving culture.
  • Why this job: Make a real impact in a dynamic environment while working with cutting-edge technology.
  • Qualifications: 4+ years in backend systems, APIs, or infrastructure; strong product sense required.
  • Other info: Join an elite team and help shape the future of our engineering culture.

The predicted salary is between 43200 - 72000 £ per year.

About Aries Global

Aries is a high-growth, founder-led group of profitable software companies, building the connective tissue for the $50B+ cloud ecosystem — and transforming how SaaS companies scale through a shared AI and growth infrastructure. We acquire and unify niche B2B SaaS companies, investing ~$200M annually from a base of permanent capital. Our platform unlocks compounding value across our group through centralised product, data, and engineering systems — powered by a world-class team.

The Role: Senior Software Engineer

As a Senior Software Engineer on the core Aries engineering team, you’ll play a key role in designing and building the foundational systems that power our platform — enabling fast iteration, deep visibility, and scalable growth across our SaaS portfolio. This is a hands-on role for a technical builder who’s excited to solve high-leverage challenges, prototype experimental tools, and contribute meaningfully to our engineering culture. You’ll work alongside a small, senior team and collaborate closely with product, data, and AI functions.

What You’ll Do:

  • Build Core Infrastructure: Design and develop internal tools, APIs, and agents that integrate data, systems, and workflows across our SaaS group.
  • Prototype with Purpose: Quickly turn high-level ideas into working products and iterate based on business feedback.
  • Engineer Growth Systems: Build tools that support GTM agents, automate workflows, and enable better decision-making at scale.
  • Collaborate Cross-Functionally: Work closely with product managers, data scientists, and AI engineers to deliver real business impact.
  • Integrate & Stitch Systems: Connect 3rd-party APIs and internal services via clean interfaces and stateful pipelines.
  • Champion Code Quality: Write clean, maintainable, well-tested code while mentoring others on engineering best practices.

What We’re Looking For:

  • 4+ years of experience building backend systems, AI agents, APIs, or infrastructure in modern programming languages (Python, Ruby-on-Rails, TypeScript, Go, etc.)
  • Comfortable working in fast-paced environments with shifting priorities and high autonomy
  • Experience building integrations, internal tools, or platform services
  • Strong product sense: you care about what you’re building and how it helps the business
  • Solid understanding of system design, async workflows, and cloud infrastructure (bonus: experience with agent-based architectures or state machines)
  • Enthusiastic about learning, growing, and collaborating across disciplines

Why This Role?

  • Join an elite founding engineering team with massive ownership and impact
  • Build real systems used across a portfolio of profitable SaaS companies
  • Work at the frontier of product, data, AI, and growth — all in one environment
  • Help shape the culture and direction of a fast-moving, well-funded platform business

Let’s Build

If you’re excited by the idea of building from 0→1, solving real-world problems, and shaping a world-class engineering org — we’d love to hear from you. Apply now or reach out for an informal chat.

Senior Software Engineer employer: Aries Global

Aries Global is an exceptional employer for Senior Software Engineers, offering a dynamic work culture that fosters innovation and collaboration. With a focus on employee growth, you will have the opportunity to shape foundational systems within a high-growth environment, while benefiting from competitive compensation and a commitment to work-life balance. Join a world-class team dedicated to transforming the SaaS landscape and enjoy the unique advantage of working at the forefront of technology in a supportive and fast-paced setting.
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Contact Detail:

Aries Global Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer

✨Tip Number 1

Familiarise yourself with the specific technologies mentioned in the job description, such as Python, Ruby-on-Rails, TypeScript, and Go. Having hands-on experience or projects that showcase your skills in these languages will make you stand out.

✨Tip Number 2

Demonstrate your ability to work in fast-paced environments by sharing examples of past projects where you successfully adapted to changing priorities. Highlighting your agility can show that you're a great fit for their dynamic team.

✨Tip Number 3

Prepare to discuss your experience with building integrations and internal tools. Be ready to share specific challenges you faced and how you overcame them, as this aligns closely with what Aries Global is looking for.

✨Tip Number 4

Show your enthusiasm for collaboration by thinking of ways you've worked cross-functionally in the past. Be prepared to discuss how you’ve partnered with product managers, data scientists, or AI engineers to achieve common goals.

We think you need these skills to ace Senior Software Engineer

Backend Development
API Design and Development
Prototyping Skills
Integration of Third-Party APIs
Cloud Infrastructure Knowledge
System Design
Async Workflows
Programming Languages (Python, Ruby-on-Rails, TypeScript, Go)
Code Quality Assurance
Mentoring and Coaching
Collaboration Skills
Problem-Solving Skills
Adaptability in Fast-Paced Environments
Strong Product Sense

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights relevant experience in backend systems, APIs, and cloud infrastructure. Use specific examples that demonstrate your technical skills and how they align with the role at Aries Global.

Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for building scalable systems and your understanding of the SaaS landscape. Mention specific projects or experiences that relate to the responsibilities outlined in the job description.

Showcase Technical Skills: In your application, emphasise your proficiency in modern programming languages like Python, Ruby-on-Rails, TypeScript, or Go. Provide examples of how you've used these skills to solve complex problems or build integrations.

Demonstrate Collaboration Experience: Highlight any past experiences where you worked cross-functionally with product managers, data scientists, or AI engineers. This will show that you can thrive in a collaborative environment, which is crucial for the role.

How to prepare for a job interview at Aries Global

✨Showcase Your Technical Skills

Be prepared to discuss your experience with backend systems and the programming languages mentioned in the job description. Bring examples of projects you've worked on, especially those involving APIs or integrations, to demonstrate your technical prowess.

✨Demonstrate Problem-Solving Abilities

Expect to face scenario-based questions that assess your problem-solving skills. Think about how you can quickly prototype solutions and iterate based on feedback, as this is a key aspect of the role.

✨Highlight Collaboration Experience

Since the role involves working closely with product managers, data scientists, and AI engineers, be ready to share examples of successful cross-functional collaborations. Discuss how you’ve contributed to team projects and the impact of your contributions.

✨Emphasise Code Quality and Best Practices

Prepare to talk about your approach to writing clean, maintainable code and how you mentor others in engineering best practices. This will show your commitment to quality and your ability to contribute to the team's culture.

Senior Software Engineer
Aries Global
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  • Senior Software Engineer

    City of London
    Full-Time
    43200 - 72000 £ / year (est.)

    Application deadline: 2027-07-10

  • A

    Aries Global

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