Lead Software Engineer - Theodo Fintech in Paris

Role Overview Theodo is hiring a Lead Software Engineer for its fintech division in Paris. This role centers on guiding a team of developers to build and deliver software products for the financial sector. The position combines hands-on technical leadership with team mentorship and cross-team collaboration. What You Will Do Lead and mentor a team of software engineers focused on fintech projects Drive the design and development of new software applications for financial services Work closely with product, design, and other teams to deliver reliable, high-quality solutions Promote a culture of technical excellence and ongoing improvement within the team Location This position is based in Paris.

Join Theodo FinTech: Shaping the Future of FinanceSince 2009, Theodo has been at the forefront of digital innovation, assisting forward-thinking companies in designing, developing, and deploying ingenious digital products by leveraging cutting-edge technology and Lean methodologies.With remarkable growth over the past 15 years, Theodo has expanded to a team of over 700 talented individuals, primarily Software Engineers who are passionate about technology and continuous improvement. Our growth has led to the formation of specialized entities focusing on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Goods). By 2025, Theodo is projected to generate €100M in revenue.At Theodo FinTech, our mission is to make finance more beneficial for individuals, businesses, and society at large. As experts in FinTech, we collaborate with our clients—including major corporations, ScaleUps, and StartUps in the financial services sector—to design, develop, and maintain digital products that are accessible, sustainable, and socially valuable.We pride ourselves on delivering exceptional digital products with zero bugs and high security in record time. Our expertise in integrating B2B fintech APIs enables us to create embedded finance solutions that meet the needs of our clients.Your Responsibilities:We are currently focusing on large-scale projects with complex products and architectures, developed by multiple squads at Theodo FinTech:- Engineering: Ensure the satisfaction of your technical clients (typically CTOs and VPs of Engineering) and business stakeholders by guaranteeing the quality of the architectures and the code produced by your teams.- Management: Lead and mentor your teams to achieve excellence in both development and client relationships.

Join Theodo: Pioneers in Digital SolutionsSince 2009, Theodo has been at the forefront of innovation, helping businesses design, develop, and deploy ingenious digital products by leveraging the best technology and Lean methodologies.With exceptional growth over the past 15 years, Theodo now boasts a talented team of over 700 professionals, primarily composed of passionate Software Engineers dedicated to continuous improvement. Our growth has led to specialized entities within the group focusing on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Heathtech, Consumer Products). By 2025, Theodo aims to generate 100M€ in revenue.At Theodo FinTech, our mission is to enhance the usefulness of finance for individuals, businesses, and society. We partner with major corporations, ScaleUps, and StartUps within the financial services sector to design, develop, and maintain accessible, sustainable, and socially beneficial digital products.As experts in financial services technology, Theodo FinTech delivers exceptional digital products at lightning speed with zero bugs and high security. Our team excels at integrating APIs from all B2B fintech platforms to create innovative embedded finance solutions.Your Responsibilities:As a Senior Full-Stack Software Engineer at Theodo FinTech, your role will involve:- Rapidly coding without bugs, utilizing coding assistants (Copilot, Cursor, Windsurf).- Designing features by contributing product ideas and identifying optimal technical strategies, while adhering to our delivery practices.

Role Overview Theodo is hiring a Lead Software Engineer to join its Paris office. This role involves leading a team of developers on impactful projects, shaping software solutions with modern technologies, and setting a high standard for quality. What You Will Do Guide a team of engineers through all stages of software development Work closely with team members to deliver reliable, well-crafted solutions Apply current technologies and development practices to real-world challenges Mentor and support developers in their growth Encourage open communication and foster a collaborative team spirit Who We’re Looking For Strong technical background in software engineering Experience leading or mentoring development teams Clear communicator who can motivate and inspire others Comfort working in Paris or relocating to the city

Role Overview Theodo is hiring a Lead Software Engineer in Paris. This role involves guiding software development projects and supporting a team of engineers. The position focuses on designing and building reliable, high-performance software that meets client expectations. What You Will Do Lead software projects from planning through delivery Work hands-on with the team to design and implement technical solutions Collaborate with colleagues from different functions to align on project goals Oversee project timelines and ensure milestones are met Mentor junior developers and encourage knowledge sharing Team and Culture This role supports a culture of continuous learning and improvement. The team values technical skill, open communication, and a shared commitment to delivering strong results for clients. Location This position is based in Paris.

Join Theodo and Be Part of Our Success StoryTheodo has been a driving force for innovative companies since 2009, specializing in the design, development, and deployment of cutting-edge digital products - including the TF1+ platform, LCL Pro app, and France Identité Numérique application. We harness the power of advanced technology and Lean methodologies to achieve exceptional results.At Theodo FinTech, our vision is to make finance more accessible and beneficial for individuals, businesses, and society at large. Our team comprises tech and product experts who create and implement innovative solutions that are reshaping the financial services industry. We collaborate on diverse projects with fintech leaders such as Qonto, Stripe, and Alma, as well as major corporations like BNPP, Crédit Agricole, and BPCE, leveraging our ecosystem of technical partners including BaaS, CBS, and APIs.Having partnered with Crédit Agricole for four years across multiple entities including La Fabrique by CA, BforBank, LCL, and CA-TS, we are looking for a dedicated Strategic Account Lead. This role involves nurturing our relationship with Crédit Agricole, managing existing projects, and identifying new business opportunities to foster long-term growth.

Join Our Journey at TheodoSince 2009, Theodo has been a beacon for innovative companies, guiding them through the design, development, and deployment of ingenious digital products. Our strength lies in harnessing cutting-edge technology along with a Lean approach.Over the past 15 years, Theodo has experienced remarkable growth, with a team of over 700 passionate Theodoers, primarily Software Engineers, dedicated to technology and continuous improvement. As we expand, we've structured our group into specialized entities focusing on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, we aim to achieve €100M in revenue.At Theodo FinTech, our mission is to make finance more accessible and beneficial for individuals, businesses, and society. As the FinTech expert arm of Theodo, we support our clients—including major corporations, ScaleUps, and StartUps in the financial services sector—in creating, developing, and maintaining digital products that are accessible, sustainable, and socially responsible.As technology experts in financial services, Theodo FinTech delivers outstanding digital products at an unparalleled pace, ensuring zero bugs and high-security levels. Our expertise includes seamless integration of APIs from various B2B fintech platforms to create embedded finance solutions.We are currently seeking a Strategic Account Lead to join Theodo FinTech.

Join Theodo: Pioneering Digital Finance SolutionsSince 2009, Theodo has been at the forefront of innovation, helping businesses design, develop, and deploy intelligent digital products by harnessing cutting-edge technology and Lean methodologies.With remarkable growth over the last 15 years, Theodo now boasts a talented team of over 700 professionals, primarily Software Engineers dedicated to continuous improvement. As the company expands, it has organized itself into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industry sectors (Fintech, Govtech, Healthtech, Consumer Goods). By 2025, Theodo aims to achieve a revenue of €100M.At Theodo FinTech, our core mission is to enhance the utility of finance for individuals, businesses, and society at large. As the FinTech expert arm of Theodo, we guide our clients—large corporations, ScaleUps, and StartUps in the financial services sector—through the design, development, and maintenance of accessible, sustainable, and socially beneficial digital products.As technological experts in financial services, Theodo FinTech delivers exceptional digital products in record time with zero bugs and a high level of security. We excel at integrating APIs from various B2B fintech platforms to create seamless embedded finance solutions.Your Future Responsibilities:As a Lead Product Manager, you will spearhead complex product projects, driving the product vision, orchestrating delivery, and ensuring value creation for both clients and teams.- Define and champion the product strategy in collaboration with clients: value modeling, product architecture, EPICs, trade-off negotiations, and technical-functional alignment.- Ensure successful delivery of products with a focus on meeting client needs and maintaining high standards.

Theodo at a Glance Since 2009, Theodo has partnered with forward-thinking companies to design, build, and launch digital products. The team combines technology expertise with Lean methodology to deliver results that matter. Theodo’s approach stands on three principles: Deep expertise in essential technologies for product design and development Consistent focus on creating value for clients at every project stage Recruiting top digital talent and fostering their growth through Lean practices Over the past 15 years, Theodo has grown to a team of more than 700, with most roles in software engineering and a shared drive for continuous improvement. The group is organized into specialized units by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (Fintech, Govtech, Healthtech, Consumer Products Goods). Theodo aims to reach €100M in revenue by 2025. About the AI Modernization Practice The AI Modernization team leads Theodo’s efforts to become a European leader in applying AI to software development. This practice focuses on using AI to migrate legacy systems to modern languages and frameworks. The goal: reduce business, cybersecurity, and compliance risks tied to outdated systems. By combining controlled AI with a proven approach, the team delivers critical projects up to three times faster than traditional methods. The Team Structure Join a community of over 350 Theodoers: software engineers, tech leads, engineering managers, and architects. Theodo encourages daily learning and knowledge sharing across this network. Project teams are tailored for each client. As a Lead Software Engineer - AI Modernization, you’ll work in a small group of 4 to 5 people, typically including Software Engineers, a Tech Lead, and a Product Manager. Teams collaborate closely with clients, sharing updates, exploring challenges, and adapting products to user needs. The field of software engineering is changing with AI. This is a chance to develop as an AI-Native Tech Lead. Location Role based in Paris.

Role Overview Theodo Fintech is hiring a Product Manager in Paris. This role guides projects that influence the future of fintech products. The Product Manager works with teams across disciplines to design, build, and launch solutions that address user needs and support business objectives. What You Will Do Define the product vision and set clear goals Develop and manage product roadmaps Oversee the execution of product initiatives from concept through delivery Collaborate closely with engineering, design, and business teams Who We’re Looking For Experience leading product development or management initiatives Comfort working with teams from different backgrounds and specialties Motivation to make a measurable impact in fintech Location This position is based in Paris.

Join Theodo's Journey to SuccessSince 2009, Theodo has been empowering innovative companies in the design, development, and deployment of cutting-edge digital products, leveraging the best of technology and the Lean approach.With exceptional growth over the past 15 years, Theodo has brought together a community of over 700 passionate Theodoers, primarily composed of Software Engineers dedicated to technology and continuous improvement. Our expansion has led to specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industry sectors (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo is projected to generate €100M in revenue.At Theodo FinTech, our mission is to make finance more accessible and beneficial for individuals, businesses, and society. As Theodo's FinTech experts, we support our clients—large enterprises, ScaleUps, and StartUps in the financial services sector—in designing, developing, and maintaining digital products that are sustainable and socially impactful.As a Talent Recruiter at Theodo, you will play a crucial role in this growth journey. You will manage the entire recruitment process, from identifying talent to engaging the best tech and business professionals in the market. Your efforts will directly contribute to our mission of attracting and retaining exceptional talent.

Join Theodo: Pioneers in FinTech InnovationSince 2009, Theodo has been at the forefront of empowering innovative companies through the design, development, and deployment of cutting-edge digital products, leveraging the best technology and Lean methodologies.With an exceptional growth trajectory over the past 15 years, Theodo now boasts a team of over 700 passionate Software Engineers dedicated to continuous improvement. Our company has evolved into specialized entities focusing on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo is set to achieve €100M in revenue.At Theodo FinTech, our mission is to make finance more accessible and beneficial for individuals, businesses, and society. As the FinTech expert within Theodo, we partner with clients including large enterprises, ScaleUps, and StartUps in the financial services sector to design, develop, and maintain digital products that are accessible, sustainable, and socially beneficial.As technology leaders in financial services, Theodo FinTech delivers exceptional digital products with zero bugs and high security in record time. We excel at integrating APIs from various B2B fintech platforms to create embedded finance solutions.Your Responsibilities:- Engineering: You will ensure the success of projects for our clients, particularly in the FinTech sector, primarily focusing on technical quality and the scalability of our architectures.- Management: In addition to leading teams of tech leads and developers on your projects, you will oversee the career management of 5 to 15 engineers over time.

Discover Theodo – A Leader in Digital InnovationSince 2009, Theodo has been at the forefront of helping innovative businesses design, develop, and deploy ingenious digital products by leveraging cutting-edge technology and a Lean approach.With an exceptional growth trajectory over the last 15 years, Theodo has expanded to over 700 passionate Theodoers, predominantly Software Engineers dedicated to technological advancement and continuous improvement. Our organization has structured itself into specialized entities focusing on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, Theodo aims to generate €100M in revenue.At Theodo FinTech, our mission is to make finance more beneficial for individuals, businesses, and society as a whole. As the FinTech division of Theodo, we partner with clients – including large enterprises, ScaleUps, and StartUps – within the financial services sector to design, develop, and maintain digital products that are accessible, sustainable, and socially valuable.As technology experts in financial services, Theodo FinTech delivers exceptional digital products in record time, ensuring zero bugs and a high level of security. We specialize in integrating APIs from various B2B fintech platforms to create embedded finance solutions.

Join Theodo: Innovators in Digital FinanceSince 2009, Theodo has been at the forefront of aiding innovative businesses in designing, developing, and implementing clever digital products by leveraging top-notch technology and Lean methodologies.With remarkable growth over the past 15 years, Theodo has expanded to over 700 passionate Theodoers, primarily Software Engineers dedicated to technology and continuous improvement. As we grow, we've structured our teams into specialized entities based on technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products Goods), projecting a revenue of €100M by 2025.At Theodo FinTech, our mission is to make finance more beneficial for individuals, businesses, and society. As a specialized FinTech entity within Theodo, we support our clients—large enterprises, ScaleUps, and StartUps in the financial services sector—in designing, developing, and maintaining digital products that are accessible, sustainable, and socially impactful.As technological experts in financial services, Theodo FinTech delivers outstanding digital products in record time, ensuring zero bugs and high security levels. We expertly integrate APIs from various B2B fintech platforms to create embedded finance solutions.Your Future Responsibilities:As an Associate Product Manager, your mission will involve helping the team maximize product value by prioritizing and delivering high-quality features that enhance customer satisfaction, all while being guided by a Lead Product Manager.- Prioritize and deliver high-value features while adhering to timelines and commitments.

Theodo Group: A Journey of Innovation and SuccessSince 2009, Theodo has been dedicated to supporting innovative companies in the design, development, and deployment of ingenious digital products, leveraging the best of technology and Lean methodologies.With over 15 years of exceptional growth, Theodo has expanded to a team of more than 700 passionate software engineers committed to continuous improvement. As we scale, we have structured ourselves into specialized units focused on various technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, Theodo aims to achieve a revenue of €100 million.Established in 2016, Theodo Data & AI serves as the data and AI division of Theodo. Our goal is to partner with clients in shaping and deploying their data strategies, as well as researching and developing state-of-the-art AI solutions.The company is experiencing rapid growth, with Theodo Data & AI recording an annual revenue increase of over 30%, creating exciting new opportunities for our team!Why We Are Hiring a Lead Data Software Engineer?To contribute to the growth of Theodo Data & AI and to strengthen our Data Software Engineering teams, we are seeking an experienced professional.

Join Theodo and Be Part of Our Success Story!Since 2009, Theodo has been empowering innovative companies in the design, development, and deployment of ingenious digital products, leveraging the best technology and Lean methodologies.Our distinctive approach is founded on three key principles:- We have cultivated recognized expertise in essential product design and development technologies;- Regardless of the project's phase, creating value for our clients is our top priority in every decision;- We recruit the finest digital talents and foster their ingenuity through Lean practices.Theodo has experienced remarkable growth over the past 15 years: our teams comprise over 700 Theodoers, primarily Software Engineers passionate about technology and continuous improvement. With this growth, the group has organized into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) or by industry (Fintech, Govtech, Healthtech, Consumer Products Goods). By 2025, Theodo aims to generate €100M in revenue.Your Team:You will join a community of over 120 tech enthusiasts at Theodo: software engineers, tech leads, engineering managers, and architects, where you can share ideas, learn, and grow every day. At Theodo, our tech teams work in project groups tailored to the unique needs of each client. You will be part of a small team of Theodoers (4 to 5 members), including Software Engineers, a Tech Lead, and a Product Manager. Together, you will collaborate closely with the client through regular communications to share progress, deepen the understanding of their challenges, and evolve the product to meet user needs effectively. Your Future Responsibilities:As a Fullstack Software Engineer at Theodo, your mission will involve designing and developing useful, high-performing, and sustainable digital products to address the challenges faced by our clients and their users.

About Theodo Since 2009, Theodo has partnered with forward-thinking companies to design, build, and launch digital products using advanced technology and a Lean mindset. Theodo’s approach centers on three principles: Deep expertise in core technologies for product design and development Focus on delivering value at every project stage and decision Attracting and nurturing top digital talent through Lean practices Over the past 15 years, Theodo has grown to more than 700 team members, most of whom are Software Engineers dedicated to technology and continuous improvement. The company is structured into specialized units by technology (such as Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (including Fintech, Govtech, Healthtech, and Consumer Products Goods). By 2025, Theodo aims to reach €100M in revenue. AI Modernization at Theodo The AI Modernization practice stands as the Group’s flagship offering. This team drives Theodo’s ambition to become Europe’s leader in AI for software development. The mission: accelerate the migration of legacy systems to modern languages and frameworks, helping clients reduce business, cybersecurity, and compliance risks. Using a controlled approach to AI and a proven methodology, these projects are delivered three times faster than traditional methods. Your Team Join a tech community of over 350 Theodoers: software engineers, tech leads, engineering managers, and architects. This is a place to exchange ideas, learn, and grow every day. At Theodo, tech teams form project groups tailored to each client’s needs. As a Lead Fullstack Engineer, work within a small team of 4 to 5 members, including Software Engineers, a Tech Lead, and a Product Manager. Collaboration with clients is close and ongoing, with regular discussions to share progress, deepen understanding of challenges, and adapt products to serve users effectively. Software Engineering is evolving with AI. At Theodo, there is an opportunity to develop as an AI Native Tech Lead.

Discover Theodo's Journey and SuccessSince 2009, Theodo has been empowering innovative companies in crafting, developing, and launching ingenious digital products, leveraging cutting-edge technology and a Lean approach.Our distinctive methodology is built upon three core principles:- We have honed acknowledged expertise in key technologies for product design and development;- At every stage of the project, our priority is to create value for our clients;- We recruit the finest digital talents and nurture their ingenuity through a Lean approach.Theodo has experienced remarkable growth over the past 15 years, gathering over 700 passionate Theodoers, primarily Software Engineers dedicated to technology and continuous improvement. As we expand, our group has organized into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (Fintech, Govtech, Healthtech, Consumer Products). By 2025, Theodo aims to achieve a revenue of €100M.Your Future Team:You will join a community of over 120 Theodo tech professionals: software engineers, tech leads, engineering managers, and architects, where you can exchange, learn, and grow daily.At Theodo, tech teams work on project-based teams, tailored to meet each client's needs. You will be part of a small team of Theodoers (4 to 5 members), including Software Engineers, a Tech Lead, and a Product Manager. Together, you will collaborate closely with the client, with regular updates to share progress, deepen understanding of their challenges, and evolve the product to align with user needs.Your Future Responsibilities:As a Fullstack Software Engineer at Theodo, your mission will be to design and develop valuable, high-performance, and sustainable digital products to address the challenges faced by our clients and their users.

Join Theodo as an LLM-Powered Software EngineerAt Theodo, we have been at the forefront of digital product development since 2009, empowering innovative businesses to design, develop, and deploy ingenious digital products through cutting-edge technology and Lean methodologies.Our unique approach is grounded in three core principles:- We have cultivated recognized expertise in key technologies for product design and development;- Regardless of project phase, our priority is to create value for our clients with every decision;- We recruit the best digital talent and nurture their ingenuity through our Lean approach.Theodo has experienced exceptional growth over the past 15 years, with over 700 Theodoers, primarily Software Engineers, who are passionate about technology and continuous improvement. As we expand, we have structured our teams into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (Fintech, Govtech, Healthtech, Consumer Goods). By 2025, Theodo aims to achieve €100M in revenue.Your Future Responsibilities:Join our Business Critical Migration team as we support our clients in migrating legacy systems to modern, robust stacks using LLM and agentic workflows.You will collaborate with product and tech teams of 4 to 6 members, including Software Engineers, AI Architects, and IT Migration Delivery Managers, tackling complex and impactful challenges.As an LLM-Powered Software Engineer, your mission will be to establish and iterate on robust LLM workflows, integrated within the client code lifecycle.Specifically, you will:- Identify the technical components to migrate (e.g., controllers, pages, services…)- Implement LLM workflows or micro-agents to automate or translate code blocks- Generate retro-documentation from existing code- Configure and integrate open-source or internal LLM tools (e.g., cline, GenAIScript)

Join the Theodo Group: A Legacy of InnovationSince 2009, Theodo has been at the forefront of assisting innovative companies in the design, development, and deployment of ingenious digital products, leveraging cutting-edge technology and a Lean approach.With exceptional growth over the past 15 years, Theodo has expanded to a team of over 700 passionate Theodoers, primarily composed of Software Engineers dedicated to technology and continuous improvement. As we scale, our organization has evolved into specialized entities by technology (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industry (Fintech, Govtech, Heathtech, Consumer Products Goods). By 2025, Theodo is projected to generate €100M in revenue.With over 130 successful projects completed, Theodo Apps specializes in the development of cross-platform applications (mobile, web, and TV). We partner with our clients to design, develop, and deploy applications that transform user experiences.In just 10 years, Theodo Apps has grown from 2 to 120 employees and reached a revenue of €24 million in 2024!Theodo Apps collaborates with entrepreneurs, innovative SMEs, and large corporations such as TF1+, Carrefour, Urgo, and Compagnies des Alpes.Our technical team comprises 120 software engineers, tech leads, and architects, all graduates from top engineering schools, supported by 13 Engineering Managers dedicated to their success.Your Mission:- Lead & Develop Tech Leads: Mentor 1 to 4 Tech Leads in their professional growth and fulfillment.- Ensure Technical Delivery: Safeguard code quality (3S: Stability, Security, Speed), uphold project milestones, and ensure robust architecture.- Contribute to Business Development: Engage in strategic discussions with clients (CIOs, sponsors), help identify new opportunities, and participate in pre-sales with our sales team.