Full Stack Engineer

Do you want to build a product that investigators use to track real financial crime across blockchains? Are you excited about turning complex graph data into something intuitive and fast? Do you want your code to directly help catch bad actors?

Elliptic is looking for Full Stack Engineers to join our growing Investigations team. This is a chance to work at the intersection of technology and financial crime prevention, building tools that compliance teams worldwide rely on to trace fund flows, uncover illicit activity, and protect the global financial system.

We’re hiring at multiple levels. Your responsibilities, scope of ownership, and compensation will be based on the level you join at and your experience. We’ll determine the level during the interview process so you don’t need to work out where you fit before applying.

You'll join a collaborative team of web and data engineers, working closely with the product team to ship features that make investigators faster and more effective. The work is technically interesting and has real impact. The team cares about quality, gives you space to do your best work, and offers real ownership across the stack.

The impact you will have:

As a Full Stack Engineer on the Investigations team, you'll play a part in shaping how compliance teams track and prevent financial crime. You'll work across the full stack, contributing to investigative workflows that help users trace fund flows, visualize complex transaction networks, and uncover patterns in blockchain data. Working closely with product and data engineers, you'll help turn complex data into simple, useful product features and contribute to the platform's speed, precision, and usability.

What you will do

Build and improve investigative workflows that empower compliance teams to track fund flows across blockchains

Work across the full stack (React/Redux frontend, Node.js/NestJS backend, data layers) to ship product features

Contribute to data visualizations for complex transaction flows and network graphs, making the complex feel simple

Help improve platform speed and precision by working on queries, frontend responsiveness, and features that make investigators faster

Collaborate closely with product, data engineers, and cross-functional teams to deliver meaningful value

Write clean, well-tested code and participate in code reviews

Contribute to technical discussions, raising trade-offs and risks where you see them

What you will achieve in the first 6 months:

Ship production features across frontend and backend that improve the investigator experience

Take ownership of work that matches your level from well-defined tickets to open-ended problem statements that need you to shape the approach.

Improve production readiness across the platform through better observability, resilience, and error handling

Build strong working relationships with data engineers, web engineers, product, and DevOps

Contribute to the team's delivery rhythm and help raise engineering standards through reviews and consistent patterns

You will be a great fit here if you

Care about writing clean, reliable code and enjoy working across backend, frontend, and data systems to build great products

Can break down product problems into well-scoped technical tasks, with the level of independence appropriate to your experience

Demonstrate good judgment (or a clear trajectory toward it) in balancing technical quality with shipping pace knowing when to invest in robustness and when “good enough” is the right call.

Communicate clearly with non-engineers (product, stakeholders) about technical decisions and progress

Are curious about the domain and genuinely find blockchain data and financial crime prevention interesting

Focus on what really matters by delivering meaningful results that serve both users and the business

Our ideal candidate has:

2-4+ years of professional software engineering experience

Strong experience with modern JavaScript and TypeScript across backend (Node.js/NestJS) and frontend (React/Redux) development; we welcome candidates who are stronger on one side with genuine interest in growing on the other

Solid understanding of building and maintaining UI applications and APIs, with the ability to make informed decisions about technology choices at a level appropriate to your experience

Comfortable working with databases and writing SQL queries, and partnering with data engineers on integration points

Some experience or comfort with data visualization, particularly libraries or tools for rendering complex network graphs and transaction flows

Actively uses AI coding assistants (Copilot, Cursor, Claude, etc.) as part of their daily workflow, can critically evaluate AI-generated code, and understands when AI tools are useful and when they're not

Bonus Points for:

Experience with cloud technologies such as AWS Serverless, API Gateway, Kubernetes, and Terraform

Familiarity with monitoring tools like DataDog and general observability best practices

Interest or experience in cryptocurrency and blockchain technology

Experience with graph visualization libraries for rendering complex network data

Job Benefits

How We Work

Hybrid working and the option to work from almost anywhere for up to 90 days per year

£500 Remote working budget to set up your home office space

Learning & Development

$1,000 Learning & Development budget to use on anything (agreed with your manager) that contributes to your growth and development

Vacation/Leave

Holidays: 25 days of annual leave + bank holidays

An extra day for your birthday

Enhanced parental leave: we provide eligible employees, regardless of gender or whether they become a parent by birth or adoption, 16 weeks fully-paid leave

Benefits

Private Health Insurance - we use Vitality!

Full access to Spill Mental Health Support

Life Assurance: 4 times your salary to your beneficiaries

Cycle to Work Scheme