Staff Backend Engineer - Golang

Voodoo

ABOUT VOODOO Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz. TEAM At BeReal, we are dedicated to authenticity in social media. By encouraging users to share unfiltered moments, we foster genuine connections and celebrate real life. We are now an international team of 100+ and have 40M+ monthly active users. Backed by Voodoo, our team is fully focused on scaling BeReal into an iconic social network used by hundreds of millions. ROLE We’ve built BeReal with a small technology team of world-class engineers and we intend to keep this mindset as we scale it to hundreds of millions of users. To achieve this, we ship new features faster than any other scaled social network while upgrading our infrastructure. We work in small teams of generalists and give each engineer high autonomy to make product related decisions. * Tackle exciting technical challenges, given the nature of our product, which experiences spikes of millions of users connecting within a 2-minute window. * Contribute to the development of a robust architecture capable of supporting massive scale as we attract new users and expand to new countries. * Collaborate with the product and engineering teams to create new features for the app. * Analyze trade-offs and address technical challenges related to key components of our backend. * Participate in code and design reviews. OUR STACK * Infrastructure: GCP, Kubernetes, Pub/Sub, GitHub actions, and ArgoCD. * Backend: Go, Node.js (NestJS, Nx, Typescript) * Frontend: Swift (iOS), Kotlin (Android). * Database: Spanner, PostgreSQL, Redis. PROFILE * You have 8+ years of experience working on API on distributed architecture. * You have a proven experience in Go and contribute to developing high volume API microservices. * You are self-reliant and have prior experience in a startup or similar environment. * You value teamwork and thrive on challenges. * You are proficient in English as our team is diverse and international. * You have a master degree in computer science or related field. * Most importantly, you believe in the project, are motivated, and eager to embark on an exciting and challenging journey. BENEFITS * Competitive salary upon experience * Swile Lunch voucher * Gymlib (100% borne by Voodoo) * Premium healthcare coverage SideCare, for your family is 100% borne by Voodoo * Wellness activities in our Paris office

Voodoo

ABOUT VOODOO Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz.   TEAM You will be a part of a team of 5 engineers, working on the gaming backend platform. This team collaborates closely with all departments of the company, including Core Gaming, Live Gaming and Engineering & Data. Our 'Core' games team supports internal and external studios worldwide in creating, developing, and launching new hit games, whilst our 'Live' games team focuses on delivering higher engagement on our existing and successful games. The Engineering & Data team builds innovative tech products and platforms to support the growth of their gaming and consumer apps. This team is a crucial part of Voodoo’s transition from Hyper-Casual games to Hybrid, Casual & Mid-Core. The backend platform has helped big titles like Mob Control & Marble sort & castle busters achieve amazing growth. In the next phase of evolution, we want to scale this platform to our upcoming promising titles. The objective is to scale the most common features as well as develop new features based on studios'. This position can be fully remote in any EU country.   ROLE You will work on the backend platform supporting highly scalable mobile games, played by millions of people every day. You will work closely with client-developers & game designers starting from feature design to delivery, validation, and iteration. The responsibilities are cross-functional, ranging from infrastructure, API design & coding all the way to client-side integration (we are using Golang). To succeed in this role, you will need to have passion for everything you do. You love to write code that scales to millions of users, are skilled at requirements gathering, champion new tech initiatives & leverage existing solutions. * 5+ years of backend development experience * Strong knowledge of computer science fundamentals * Extreme fluency in Golang * Mastery of SQL and NoSQL * Background in high-scale systems * Understanding of Unix-like environments * Experience working in cross-functional agile teams   PROFILE * Strong analytical skills with a track record of solving complex problems related to scalability, performance, and integration in high-stakes environments. * Excellent interpersonal and communication skills, capable of influencing teams and interfacing effectively with various stakeholders. * Ability to be self sufficient and work autonomously. * A deep interest in game development is a plus.   BENEFITS * Competitive salary based on experience * Swile Lunch voucher * Gymlib (100% covered by Voodoo) * Premium healthcare coverage with SideCare, 100% covered for you and your family * Wellness activities in our Paris office

Back Market

HI, WE’RE BACK MARKET. We’re here to help make tech reliable, affordable, and better than new. We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new. Yep, you read that right. Turns out refurbished tech is way better for the planet than new. In fact, With every device purchased on Back Market, our positive impact on the planet grows. From our Customer Care representatives to our software engineer, every individual at Back Market cuts the planet — and consumers — a break. Our mission is simple: to do more with what we already have. Are you ready to join us? Our technology department, known as the Bureau of Technology (BoT), is at the heart of Back Market. It consists of over 30 dynamic product teams that are engaged in developing and managing services to deliver significant value to our customers and suppliers. These teams are effectively supported by our Platform group, which includes more than 10 specialized teams addressing cross-cutting technical issues to enhance our operational capabilities. In addition to these functional teams, we have established numerous groups dedicated to sharing knowledge across various technical disciplines, such as security, backend, frontend, AI, and mobile. These groups serve as hubs for collaboration and professional development, providing ample learning opportunities and fostering a culture of continuous improvement. Why we created the TLM (Tech Lead Manager) or Engineering Manager hands-on role et Back Market? The TLM role ensures we can scale our teams effectively while maintaining the technical excellence and mentorship our engineers need to thrive. When leading small teams of fewer than five people, traditional management methods often create gaps and inequities compared to managing larger teams. Team leads must juggle people management with hands-on technical work to keep their teams moving fast and maintaining high technical standards. The TLM role makes this dual responsibility official, helping leaders effectively guide their teams while making meaningful technical contributions. What technical contribution means for this role ? Technical contribution extends beyond writing code. TLMs can contribute through: * Code contributions: Pull requests, bug fixes, feature development * Technical design: Architecture decisions, system design, technical specifications * Code review: Providing thorough, constructive feedback on team submissions * Technical mentoring: Guiding team members through complex technical challenges * Technical debt management: Identifying and addressing architectural improvements * Tool and process optimization: Improving development workflows and team productivity * Technical stakeholder communication: Representing technical decisions to product and business teams We are looking for a Engineering Manager hands-on for our Subcriptions squad. The Subscription team is building Back Market's next growth engine: a suite of device protection and repair services, so we're transforming how customers protect their refurbished devices through subscription plans, smart retention flows, and personalized experiences. As TLM, you'll lead technical delivery across our subscription platform, Services hub, and payment systems while collaborating with multiple engineering teams to scale a service that genuinely extends device life and drives the circular economy. What you'll be doing : * Leading a collaborative team (5 people) in delivering great software that our customers will love! * Collaborating within the product engineering department to align the team with company objectives and initiatives across engineering and the wider business * You build strong roadmaps with the right balance of long-term strategic initiatives and more short-term tactical bets that embody the company’s strategy and the team’s growth-hacking mindset * Demonstrating a broad understanding of our global architecture and how your domains fits within it * Consistently delivering code that sets the standard for quality and maintainability * Ensuring the development of people through ongoing coaching and mentoring * Creating a team environment where team members feel like they belong and are supported to do their best work * Establishing open communication and a culture of feedback between team members * Working in an agile "build it and run it" environment where engineering teams build, launch, monitor and support the sections they own * Supporting your team in increasing delivery proficiency by creating a learning environment This is the perfect opportunity for you if: * You have experience and passion for growing, developing, and guiding people * You like managing a team while continuing to contribute technically * Openness to receiving and giving feedback in a safe workplace * Experience working in agile development teams with knowledge of our following tech stack : AWS, Kubernetes, Docker, RestFul API, Python, Django, VueJs, Nuxt, Datadog etc * Interest in working in an environment where leaders support their teams to do great work, by removing impediments, finding improvements, and facilitating effective decision-making * Enthusiasm about reaching new levels of effectiveness (and quality!) * Good verbal and written communication skills in English * Excitement to learn about how our industry works and the impact we bring to our customers and the world * You have a problem-solving attitude and are comfortable navigating ambiguous situations with data and putting the user at the center. * You have a growth hacking mindset, you don't wait to act, you run experiments to test new ideas, and based on data you leverage these learnings to build more value Some informations 🐍 Our technical environment Application: Python - FastAPI / SQLAlchemy/ Celery/ Golang/ Django (being phased out) - Data: PostgreSQL/ Redis/ Kafka/ RabbitMQ/ BigQuery Infrastructure: GCP / Kubernetes (GKE) / Docker/ Datadog/ ArgoCD / CircleCI / Github Recruitment process * Call with Marie ( Expert Tech TA), 45 min * Leadership principles interview with two Engineering Managers, 60 min * Coding & testing modules, 45 min * Technical leadership Interview & System Design & API interview , 90 min * Stakeholders interview, 45 min * Back Market Values fit interview - 45 min WHY SHOULD YOU JOIN US ? ✌🏼 At Back Market, we’re committed to hiring and supporting diverse teams of people from all backgrounds, experiences, and perspectives — it’s one of the reasons we’re such a high-scoring certified B Corp company (93.2). No matter your role and seniority level, you’ll enjoy impact-driven work with hands-on career development in an innovative, driven, and fast-paced environment — with benefits to match, like: - A mission driven work environment where your day to day makes an impact on the planet. Seriously. - Hybrid work environment, with 2 remote days a week and 1 remote work week per quarter, plus 3 flex days. - Employee Resource Groups, including mentorship programs, comprehensive accessibility policies, and cultural competency training. At Back Market, we strive to create a workplace that embodies the world we’re trying to change. We’ve embedded our diversity, equity, and inclusion principles into our DNA — from dedicated staff to employee resource groups to our company values. We know that the perfect background for a role doesn’t mean the perfect fit — we encourage you to apply for a role even if you think you may not have all the qualifications. If reasonable accommodations are needed for the interview process, please do not hesitate to discuss this with the Talent Acquisition Team.