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Senior Full Stack Engineer (Javascript)

Atominvest Software· London, United KingdomEquityLicensed sponsor
Posted 3 Jul 2025 · Added 8 Aug 2026, 08:12
Atominvest Software0.0
AI summary

You will work with ReactJS, NodeJS, MongoDB, and AWS. The team builds a web-based SaaS platform for private equity, venture capital, and alternative investment firms to manage investing, fundraising, and operations. This senior role includes leading and mentoring junior engineers.

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At Atominvest, we build tools and software for the world's best investors.

Are you looking for an opportunity to be part of a high growth software business within the private equity & venture capital industry?

Do you love to build high quality software and working with a dynamic tech and product team with the latest technologies. Are you someone who is proactive and can take ownership and responsibility for new feature builds and optimization of our software?

Then the engineering role at Atominvest would be perfect for you. Get a firsthand experience and be part of the growth journey of Atominvest.

We are looking for candidates with 5-7 years+ of substantial experience in our tech stack (ReactJS, NodeJS, MongoDB, AWS).

About Us

Our software powers leading private equity, venture capital, real estate, infrastructure and hedge funds enabling them to efficiently manage and drive value across their core business functions of investing, fundraising, operations and sustainability.

At Atominvest, you'll be working on something very exciting: the future of work, investments and sustainability/ ethical investing for the world's best investors, and delivering a positive impact through this. Based on the growth we are experiencing, we think we're on to something big.

It won't be easy. Joining a scale up business is an amazing and rewarding challenge, pushing well beyond the boundaries of natural growth cycles. You'll move quicker than feels comfortable, and be brilliant at continually re-prioritizing what must get done to keep Atominvest growing year over year at the pace of the best SAAS companies on the planet.

We've gone from zero to ten, now we're looking to go from ten to one hundred.

Which is hopefully where you come in.

In the last 12 months we've:

Grown revenue by over 200%

Built out the most modern, advanced and extensive end-to-end software offerings in our industry

Expanded our customer base to include some of the world's leading private equity, growth equity, VC and private debt firms

Added 50,000+ users across N. America, EMEA and Asia

Scaled our assets on the platform to >$5 trn across our customer base

Won some great awards (Best Accounting & Reporting Software, Best Investor Relations Software - the Drawdown)

What you'll do

The role

We are looking for a full-stack software developer to take the lead in working across optimizing and building the next set of features across our award-winning web platform.

We are looking for a highly motivated person with a hands-on approach looking to join the fast-paced world within a fintech software start-up.

You will have to be comfortable moving quickly and accurately, and be brilliant at continually re-prioritizing what must be done to keep Atominvest growing at pace.

You'll work with closely with the engineering and product teams to build and optimize our web-based software platform.

We know that you can achieve great things, so we take a meritocratic approach to progression.

What you'll be doing:

Build performant, beautiful, and scalable features and services that delight our end users

Optimizing existing features and performance of our software platform

Solving complex problems in a logical an efficient manner

Taking a practical approach to prioritize engineering effort towards solving new engineering challenges

Identify opportunities for adopting new technologies and patterns

Lead, manage and mentor junior members of the team and help develop technical talent at Atominvest

Help attract, interview, and onboard your future team members during this exciting time of growth

If this sounds like what you'd love to be doing, we can't wait to hear from you.

Requirements

The must-haves:

4-7 years+ experience in web development and deep proficiency across the following technologies

ReactJS

NodeJS

AWS

MongoDB

HTML, CSS/LESS/SASS

Git / CICD

A passion for maintainable, readable, stable, secure, and scalable code

Track record of shipping high quality SaaS products and features at scale

An ability to think through client needs and incorporate end-user feedback

Strong UI/UX instincts and an eye for visual design

Understanding of client-side performance, including rendering optimizations, memory management, and state management

Positive attitude, sense of humor and creativity

Strong analytical, project leadership and communication skills

Team leadership and management skills

You should have a strong interest in web-based software development and additional experience in the financial services technology/ asset management space would be a bonus.

What we offer:

Competitive compensation

Challenging, engaging and rewarding work

A culture of trust, ownership, responsibility and autonomy in your work

An incredible team of smart and mission-driven people to work with

Fun working atmosphere and lots of coaching

Significant growth opportunities

Flexibility to work remotely or at our offices in London*

Opportunity to work and network with leading PE, VC and alternative investment firms

Company-wide socials and events

• Currently our offices in Oxford Circus is available if people want (and only if they want) to use it.