Full-Time

Software Engineer

Updated on 9/3/2026

OneStock

OneStock

51-200 employees

SaaS order management for omnichannel retailers

No salary listed

Toulouse, France

Hybrid

Category
Software Engineering (1)
Required Skills
Datadog
Python
TypeScript
Microservices
Go
Vue.js
Observability
Web Development
Google Cloud Platform
Google Analytics

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Requirements
  • A minimum of 3 to 4 years of experience in web development on complex projects.
  • Strong skills in Go, Python, and/or Vue.js and TypeScript.
  • Knowledge of sound software architecture principles.
  • Interest in data, rigor, and the ability to lead projects independently from beginning to end.
  • Comfortable with spoken and written English.
  • Ability to work with coding and architecture tests during the recruitment process.
Responsibilities
  • Ensure development quality to maintain a stable, performant, and scalable platform.
  • Participate in or lead technical designs, make technology choices, and actively reduce technical debt.
  • Promote technical excellence through code reviews and mentoring.
  • Experiment with new solutions, particularly those involving artificial intelligence, to improve developers' daily work and product value.
  • Implement and use application monitoring to identify opportunities for continuous software improvement.
Desired Qualifications
  • Experience with microservices, knowledge of Google Cloud Platform, or use of monitoring and tracking tools such as Datadog and Google Analytics.
  • Mentoring responsibilities according to seniority.

OneStock provides a distributed order management system (OMS) for retailers through a SaaS platform built around a unified stock core. It aggregates inventory data from warehouses, stores, franchises, and drop-shippers to give a real-time, end-to-end view of stock across all sales channels. The system enables B2B and B2C operations with features like order in-store, click & collect, reserve & collect, and ship from store, facilitated by a store app that lets associates manage online orders and turn physical stores into fulfillment centers. The company serves over 70 brands (including Intersport) and works with integrators and independent software vendors. Its subscription-based model aims to improve retailers’ commercial performance and customer experience by centralizing order and inventory management for omnichannel fulfillment.

Company Size

51-200

Company Stage

Growth Equity (Venture Capital)

Total Funding

$72M

Headquarters

London, United Kingdom

Founded

2010

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Simplify Jobs

Simplify's Take

What believers are saying

  • OneStock Connect 2026 in Paris drew 150+ retail leaders across Europe and America.
  • ShippyPro integration went live February 10, 2026, adding carrier-agnostic shipping execution.
  • Summit Partners' €66 million 2024 investment funded U.S. expansion and AI development.

What critics are saying

  • Manhattan, IBM Sterling, and Fluent Commerce crowd OneStock's enterprise OMS buying list.
  • OneStock's value depends on integrations with Shopify, Metapack, and ShippyPro staying aligned.
  • If retailers standardize on platform-native OMS, OneStock loses differentiation and renewal leverage.

What makes OneStock unique

  • OneStock unifies inventory and order orchestration across stores, warehouses, franchises, and dropshippers.
  • Shopify named OneStock a Premier Partner in September 2025 for enterprise omnichannel merchants.
  • Metapack partnered in July 2026, extending OneStock into carrier execution and returns.

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Benefits

Health Insurance

Meal Benefits

Remote Work Options

Paid Holidays

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
OneStock
Aug 13th, 2026
OneStock names metapack as strategic delivery management partner.

OneStock names metapack as strategic delivery management partner. Partnership connects AI-driven global carrier execution with real-time inventory intelligence across 350+ carriers and 4,000+ delivery services. OneStock is delighted to announce Metapack, a ShipStation Global(R) brand and leader in ecommerce delivery management, as a strategic partner for delivery management. This partnership connects OneStock's AI-driven inventory orchestration with Metapack's global carrier network, giving enterprise retailers a single stack from order placement through to carrier selection, label generation, and branded returns. Bringing together OneStock's unified view of inventory, sourcing intelligence and customer promise, with Metapack's carrier network, dynamic delivery options and AI-powered delivery analytics tools, this partnership enables retailers to make promises at checkout knowing that they can be met in execution. Delivery promise grounded in operational reality. "Metapack's strength has always been its ability to give enterprise retailers access to the world's most extensive carrier network through a single integration," says Mark Honeyben, SVP & Managing Director of Europe at ShipStation Global. "This partnership with OneStock adds advanced technical capabilities that ensure every delivery promise is grounded in operational reality. Together, we're giving retailers the confidence that what they promise at the Buy button is a promise they can actually keep at the front door." Metapack processes more than a billion shipments annually through its network of 350+ carriers and 4,000+ delivery services, with AI-backed intelligence that helps retailers predict delivery exceptions and optimize carrier performance in real time. It is part of ShipStation Global, which serves more than 3 million customers and moves over 3 billion shipments per year. It is therefore an ideal complement to the OneStock platform which supports highly complex retail environments through AI-powered configuration. It enables business users to react rapidly to changing situations, while also offering full product extensibility to support any commerce scenario. How it works. The combined stack covers every stage of the fulfilment journey, including: * Checkout: Real-time, location-aware delivery options backed by live inventory data, giving shoppers ETAs they can rely on. * Orchestration: OneStock routes each order to the optimal fulfillment source - whether that's a store, distribution centre, or vendor - minimizing split shipments and shipping costs. * Execution: Metapack automates carrier selection from its network of 350+ carriers, handles label generation, and ensures compliance across all markets. * Returns: A branded returns journey that integrates Metapack's returns portal with OneStock's restocking logic, accelerating inventory recovery and building customer loyalty. Measurable impact for retailers. Retailers using the joint stack can expect: * 10%+ increase in conversion rates, driven by transparent, reliable delivery choices at checkout. * From 20 to over 50% of online orders fulfilled via existing store networks, reducing shipping costs by up to 40%. * Up to 20-30% increase in turnover driven by unified stock and surfacing store-level inventory to online customers. * 40-77% fewer WISMO calls related to stock availability queries, delivery uncertainty and visibility, or order cancellations "The Metapack and OneStock solutions ensure that operational reality finally matches the customer's expectation. This is about ensuring that every promise made at the Buy button is a promise kept at the front door," says Romulus Grigoras, CEO & Co-Founder, OneStock. The partnership was showcased at OneStock Connect 2026, OneStock's flagship annual summit, which took place earlier this month. Metapack sponsored the event, which brings together 150+ retail leaders, technical partners, and industry professionals from across Europe and the US each year. About metapack. Metapack is a leading intelligent delivery management platform for enterprise retailers and 3PLs, providing access to 350+ carriers and 4,000+ delivery services through a single integration. Serving the top UK and EU retailers, Metapack handles more than a billion shipments annually. Metapack is part of ShipStation Global(R), the intelligent logistics platform that serves more than 3 million customers and moves over 3 billion shipments per year. Learn more at metapack.com.

ShippyPro
Feb 10th, 2026
ShippyPro and OneStock partner to deliver end-to-end omnichannel fulfilment, from order to last mile.

ShippyPro and OneStock partner to deliver end-to-end omnichannel fulfilment, from order to last mile. Florence, February 10, 2026 - ShippyPro, the global shipping automation platform, today announced a strategic partnership with OneStock, the leading enterprise Distributed Order Management (DOM) solution for omnichannel retailers. The partnership introduces a seamless integration that connects order orchestration with carrier-agnostic shipping execution, enabling retailers to deliver on their customer promise, at scale. In omnichannel retail, the delivery experience is no longer an operational afterthought: it is a decisive moment of truth. By combining OneStock's real-time inventory visibility and intelligent order routing with ShippyPro's shipping automation and carrier intelligence, retailers gain an end-to-end flow that spans from checkout to final delivery. Turning delivery into a competitive advantage The OneStock-ShippyPro integration empowers global omnichannel brands to: - improve delivery promise accuracy, leveraging real-time inventory availability and carrier performance data - accelerate fulfilment while optimizing logistics costs, through smarter sourcing and shipping decisions - deliver a consistent, frictionless customer experience across online, in-store, ship-from-store, and cross-border scenarios - scale globally with enterprise-grade reliability, supporting complex, high-volume retail operations "Today's customers don't judge retailers at checkout - they judge them at delivery," said Francesco Borghi, CEO of ShippyPro. "By partnering with OneStock, we connect intelligent order orchestration with automated, data-driven shipping execution. Together, we help retailers keep their promises and turn logistics into a true differentiator." Built for enterprise omnichannel retail Designed for large and fast-growing omnichannel retailers, the integration supports complex fulfilment strategies, multiple carriers, international shipping, and high transaction volumes - all while remaining flexible and carrier-agnostic. The integration is now live and available to joint customers. | Learn more about the OneStock-ShippyPro integration

OneStock
Sep 2nd, 2025
OneStock is now a Shopify Premier Partner, Empowering Merchants with Advanced Order Management

By combining Shopify's industry-leading commerce platform with OneStock's best-in-class DOM, merchants gain the ability to orchestrate complex omnichannel fulfillment, support global expansion, and deliver superior customer experiences - all with increased speed, efficiency, and lower total cost of ownership.

Startup Rise Europe
Aug 25th, 2025
OneStock Secures €66M for Expansion

OneStock, a leading Order Management Systems provider, has secured €66 million in funding from Summit Partners to support its international expansion, particularly in the U.S. The funding will also expedite product development in areas like AI and B2B. OneStock aims to become the easiest-to-integrate OMS by expanding partner relationships and integrations. The company has seen a 2.5-fold increase in recurring revenue since 2021 and plans to enhance its global impact.

OneStock
Dec 16th, 2024
2024 in review: How OneStock's product enhancements elevated omnichannel commerce

Onestock Retail has introduced a new process on its Order management Centre, making it faster than ever to deploy OneStock's OMS.