Job Description
Senior Software Engineer – Platform Team
Reports to: Head of Engineering
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.