Interested in working for Hoptroff?

Browse our open positions and find your dream job in network timing technology.

  • Title: C++ Developer

    Type: Permanent, Full-time

    Location: Hybrid remote in London EC2A 4DP - must be able to reliably commute

    Application deadline: 31/10/25

    Position Overview

    Are you a C++ wizard with a passion for cutting-edge tech? Do you thrive in a collaborative environment where innovation meets precision? At Hoptroff, we take care of time—literally! We specialise in highly accurate, software-driven time synchronisation solutions, powering industries from finance to telecoms and beyond.

    What You’ll Do:

    • Develop & integrate software for our Linux-based clock systems

    • Design tools to support time synchronisation technologies

    • Create test cases using Python-based frameworks

    • Work closely with sales & application teams to support customers

    What We’re Looking For:

    • Extensive C++ expertise (data structures, algorithms, real-world applications)

    • Experience building production software for Linux & Windows

    • Git, CI/CD, testing frameworks & modern dev practices

    • Strong communication & problem-solving skills

    Nice to Have:

    • PostgreSQL, JavaScript, Go/Golang

    • UI/UX knowledge, React, HTML, CSS

    • Experience with PTP/NTP time synchronization protocols

    Apply here

  • Title: Management Accountant

    Type: Part-Time (3 days per week), Permanent

    Location: Hybrid remote in London EC2A 4DP - must be able to reliably commute

    Application deadline: 31/10/25

    Position Overview

    Hoptroff is a cutting-edge technology company specialising in precision timing solutions. We serve global clients across finance and other sectors, simplifying time-critical operations. Our mission is to create certainty through precision time.

    We’re a fast-growing team of innovative thinkers based in Shoreditch, and we’re looking for a hands-on Management Accountant to help build an exceptional internal finance function as we scale in the UK and US.

    The Role: You’ll support our CFO in transitioning from an outsourced finance model to a streamlined in-house capability. This is a broad and rewarding role for someone confident with end-to-end finance management.

    Key Responsibilities:

    • Full-cycle bookkeeping and management accounting (Xero)

    • Monthly entity & consolidated accounts (UK and US)

    • Invoicing, credit control, AP, reconciliations - average 10 sales invoices / 60 purchase invoices per month

    • VAT submissions, tax compliance, commission calculations

    • Budgeting, forecasting, cash management

    • Investor reporting and audit support

    • Driving finance process improvements

    What We’re Looking For:

    • Part-qualified/newly qualified (ACCA/CIMA) or qualified by experience

    • Proficient in Xero and Excel (lookups, pivot tables)

    • Excellent attention to detail and communication skills

    • Experience in a startup/SME preferred

    • Bonus: Knowledge of US financial reporting

    Why Join Us?

    • Be part of a mission-led, fast-growing business

    • Hybrid working with a vibrant Shoreditch office community

    • Share options and strong learning culture

    • Work on impactful global projects

    Interested? Apply now

  • Who we are

    We're a team of smart, creative time technologists — the kind of people who want to challenge the status quo when others see roadblocks. Our work is guided by our core values: precision, innovation, collaboration, trust and ambition.

  • Our mission

    We create certainty through global precision timing. Hoptroff is addressing a critical challenge that will profoundly impact society as data generation accelerates — bringing certainty to an uncertain world by precisely recording what happened when.

  • Flexible working

    Many of our staff work flexibly in many ways including part time, remote working, or flexible start and finish times. We can't promise to give you exactly what you want but we can promise to explore what's possible for the role.

  • Office

    We have a relaxed work environment with a casual dress code. Our Shoreditch office is split across five floors with plenty of breakout and social areas. Help us build the foundation of a brilliant space, and join the precision timing revolution.

Our employment policies

Hoptroff is an equal opportunities employer and we are committed to utilising the talent, experience, and cultural perspectives of every employee regardless of their sex, marital or parental status, race, colour, nationality, religion, belief, disability, age, sexual orientation or gender reassignment.

We comply with the prevention of illegal working of the Immigration, Asylum and Nationality Act in certain locations, as required by law.

Depending on your location, the General Data Protection Regulation (GDPR) may regulate the way we manage the data of job applicants. Our full notice outlining how data will be processed as part of the application procedure for applicable locations is available here. By submitting your application, you are agreeing to our use and processing of your data as required.

Hoptroff has a commitment to sourcing candidates directly and as such we do not accept speculative CVs from agencies. We don’t pay agency fees where speculative and unsolicited CVs are submitted to Hoptroff or Hoptroff employees. Please don’t send us CVs unless our recruitment team has explicitly requested your company to do so in respect of a specific role.