Full-Stack Engineer Performance Systems

The Human Capital Company; Bournemouth; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A technology-driven performance company in Bournemouth is seeking a Tier-1 Full-Stack Engineer to own the architecture and reliability of performance systems. This role requires significant responsibility where engineers are expected to design and build scalable systems that support high-stakes environments. Ideal candidates will have strong full-stack experience, practical knowledge of React, and expertise in cloud architectures. Competitive compensation is offered along with a hybrid working model.

Qualifications

• A full-stack engineer capable of designing and building scalable systems.
• Ability to build performance infrastructure with a focus on reliability and security.
• Experience in creating systems intended for high-stakes environments.

Responsibilities

• Own architecture, implementation, and reliability end to end.
• Anticipate failure modes before users feel them.
• Build for boring reliability, not heroics.

Skills

Full-stack experience

Practical knowledge of React

Hands-on experience with cloud architectures

Solutions architecture capability

Understanding of security

Understanding of resiliency

Understanding of data protection

Understanding of system failure modes

Job description

Tier-1 Full-Stack Engineer — Performance Systems

T1 | Bournemouth (Hybrid / Flexible)

The Role

You will own a production-grade performance system end-to-end.

This is not a feature factory.
This is not a wellness app.
This is not a place to hide behind tickets, specs, or abstractions.

This is performance infrastructure used by people operating under real pressure — where mistakes are expensive and reliability is non-negotiable.

You will:

• Own architecture, implementation, and reliability end to end
• Make deliberate technical trade-offs and explain them clearly
• Anticipate failure modes before users ever feel them
• Build for boring reliability, not heroics
• Treat timing, silence, and precision as first-class technical concerns

Required from Day One

This role requires a full-stack engineer capable of designing and building scalable systems from first principles.

The ideal candidate will have:

• Strong full-stack experience, including modern frontend development
• Practical knowledge of React (or an equivalent modern JS framework)
• Hands-on experience with common cloud architectures (AWS, GCP, Azure or similar)
• Experience designing and integrating scalable cloud systems
• Solutions architecture capability — not just implementation
• A clear, working understanding of:
  • Security
  • Resiliency
  • Data protection
  • System failure modes

This system must be designed to scale efficiently from the start.
Security, resilience, and data integrity are foundational requirements, not future work.

If you haven’t built systems with these constraints in mind, this role is not a fit.

What You’ll Be Building

An audio-first, high-reliability training system designed to help elite performers:

• Control attention and emotion under pressure
• Make clean decisions when stakes are high
• Execute reliably when others wobble

You will build and own:

• A modular audio engine with reusable components
• Session logic supporting learning vs maintenance states
• Systems where timing and silence are intentional
• Architecture where small errors have outsized cognitive impact

This is not “play audio and track progress”.
Reliability here is psychological as well as technical.

How You’ll Work

You think in systems, not features.

You:

• Reduce noise rather than add complexity
• Make trade-offs explicit
• Fix things because they’re wrong, not because someone noticed
• Communicate clearly with non-technical stakeholders
• Respect that this product trains attention and emotion

What “Good” Looks Like After 6–12 Months

• Core flows are stable, trusted, and boring in the best sense
• Audio delivery is precise and interruption-free
• Security, data integrity, and resilience are foundations, not patches
• Bugs are rare, surfaced early, and handled calmly
• The system scales without becoming fragile or robotic

Who Thrives Here

• Engineers who want real ownership
• Builders who care about craft and consequence
• People bored of shipping things that don’t matter
• Calm operators who take responsibility without drama

Red Flags

• You treat security, reliability, or scaling as “later”
• You need heavy direction to feel safe
• You optimise for visibility over quality
• You confuse speed with progress

Compensation

Competitive base plus performance-linked upside.
We reward ownership and delivery — not titles or tenure.

Final note

If this feels slightly intimidating but deeply interesting, that’s intentional.

This is mental performance infrastructure.
Standards matter.