Full Stack Software Engineer

Confidential

London Hybrid permanent

Posted: March 10, 2026

Required Skills

Job Description

The Company
Timeline is a financial technology company on a mission to help millions of people plan, invest for, and enjoy retirement with confidence. As a privately owned fast-growing fintech company providing Platform, MPS and financial planning solutions, we are well placed to disrupt the traditional financial services market.

Our technology cuts out unnecessary costs, inefficiencies and anxiety for financial advisers, while improving the long-term investment returns for their clients.

We are a remote-first company with team members in over 13 countries. And given our diversity of thought, backgrounds and life experiences, we are constantly striving to celebrate individual uniqueness, while achieving our common mission. As a scaling, high-growth company, developing and adapting are the norm. If you’re after a dynamic company where you will make a real difference, then read on!

Role Responsibilities
We are looking for a Full Stack Software Engineer to join our global, remote-first Engineering team. The team works asynchronously in 4-week cycles, collaborating closely with the Product team and the wider business.

Our technology stack:
Backend: Elixir / Phoenix
Frontend: Elm / Elm UI / JavaScript / HTML / CSS
Calculations Engine: Rust

What we value as a team:

Simplicity

Code quality

Experimenting with new features/technologies

Being customer/user-focused

Continual learning

Leveraging AI to build software — we actively explore agentic coding workflows to help engineers move faster while maintaining high code quality

Role Requirements

Absolute must-haves:

At least 5 years’ software development experience.

Proficiency in Elixir.

A solid understanding of web technologies.

Can write maintainable and robust code.

Enjoy writing tests.

Want to help design, implement, and launch major user-facing features.

A strong understanding of systems architecture and database design.

Provide feedback and code reviews to peers.

An eye for great products and can work effectively with engineers and designers to build them.

Proactive with communication and have no problem managing time as a remote employee.

Nice to-haves:

Empathy for the problems that financial planners face in their day-to-day operations and a desire to solve those problems.

Experience building SaaS products.

Experience building with different AI tools (e.g. using creating features with LLMs, implementing Retrieval Augmented Generation, Vector Databases, evals, etc)

The Package

Competitive salary, dependent on experience

Non-contributory pension scheme

28 days holiday plus bank holidays

Non-contractual bonus scheme

Potential to join company option scheme

Insurance plans

Cost of relevant professional qualifications and memberships

Hybrid working

Flexible hours (depending on team requirements)

Wellbeing support

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