Role Description Decima builds and evolves complex commerce systems that power global brands. We’re looking for a Lead Backend Engineer who operates at an architect level but stays deeply hands-on. Most of our clients already have large, business-critical Adobe Commerce (Magento 2) platforms in place. Your role is not to rebuild them from scratch — but to carefully evolve, extend, and improve them without breaking what already works. This requires a different mindset: understanding existing systems deeply, making safe and well-reasoned changes, and balancing long-term architecture with real-world constraints. You’ll be the person engineers rely on when changes are risky, and the one clients trust when stability matters as much as progress. In this role, you will lead the evolution of existing enterprise Adobe Commerce Cloud platforms — introducing new features, integrations, and improvements while preserving system stability. You’ll work within complex, already-built ecosystems, making thoughtful architectural decisions that respect existing constraints and minimize risk. This is a hands-on role — you’ll actively contribute to implementation, review critical code, and ensure that every change is safe, scalable, and aligned with the overall system design. Responsibilities - Own architecture decisions within existing Magento 2 systems — balancing improvement with stability. - Analyze and deeply understand legacy codebases and current system behavior before making changes. - Design extensions and integrations that fit cleanly into existing architecture. - Ensure backward compatibility and minimize regression risk in all changes. - Lead complex integrations with ERP, PIM, OMS, CRM systems within existing environments. - Review critical code changes with a focus on safety, performance, and maintainability. - Identify architectural risks and propose safe, incremental improvements. - Guide the team in making thoughtful, non-breaking changes. - Participate in discovery and pre-sales — assessing existing systems and proposing realistic solutions. - Document decisions with clear reasoning and trade-offs. Qualifications - 8+ years of professional software development experience. - 5+ years of hands-on Magento 2 / Adobe Commerce Cloud development. - Deep understanding of Magento 2 architecture - DI, plugins, service contracts, extension attributes, event/observer patterns. - Proven experience designing integrations with ERP, OMS, or PIM systems (SAP, NetSuite, Akeneo, or similar). - Strong PHP engineering skills, OOP, and design patterns. - Experience with APIs (REST, GraphQL) and service-oriented architecture. - Experience with cloud environments and DevOps (CI/CD, Docker, AWS/GCP, Magento Cloud). - Prior experience in a lead or architect-level role with ownership of technical decisions. - Strong communication skills - able to explain technical decisions clearly. Requirements - Experience working with large, existing Magento 2 codebases (not only greenfield projects). - Strong ability to understand and safely modify legacy systems. - Experience delivering improvements without full rewrites. - Ability to balance ideal architecture with real-world constraints. - Strong debugging and root-cause analysis skills in complex systems. - Experience working in environments where system stability is critical. Benefits - Work on enterprise commerce systems powering global brands. - Real architectural ownership. - Supportive, transparent, and collaborative team culture. - Ongoing professional development and learning support.

• Development of data processing algorithms related to remote identification / authentication of individuals (both product and technical). • Improvement and development from scratch of internal tools for compliance officers. • Test driven development and A/B testing. • Optimization and automation of CI/CD pipelines to increase reliability and deployment speed. • Monitoring, troubleshooting, and performance tuning of cloud infrastructure and distributed systems.

• Designing and developing backend services for Reusable Identity (Reusable KYC & Sumsub ID) • Building secure and scalable flows for identity reuse, consent management, and account protection • Working in a fast-moving environment with evolving product requirements and architectural decisions • Collaborating closely with Product (English-speaking stakeholders) and cross-functional teams • Taking ownership of services and features end-to-end — from design to production support

Uniswap Labs is a core contributor to the Uniswap Protocol, the world’s largest DEX, with over $4 trillion in volume across 17 chains. It builds products that help millions access the protocol, including the Uniswap Web App, Wallet, and Trading API. Uniswap Labs is also the primary technical provider for Unichain, a DeFi-native Ethereum Layer 2 built to be the home for liquidity across chains. When you join Uniswap, you become part of a team that's reshaping the way value flows on the internet. As a Staff Backend Engineer, you will play a pivotal role in shaping the architecture and strategy of our systems. This is a unique opportunity to lead technical initiatives, drive innovation, and ensure Uniswap remains at the forefront of crypto. We are headquartered in SoHo in New York City, and this role has the option to be partially or fully remote. What You'll Do - Drive end to end execution of technical projects, from ideation and design to deployment. - Design and build resilient, large-scale systems from the ground up with a focus on reliability, scalability, and performance. - Write high quality and well tested code, and review code from other team members. - Provide thought leadership and guide peers in navigating complex architectural and coding decisions. - Champion best practices and technical excellence across the engineering organization. - Spearhead strategic technical initiatives that impact multiple engineering pods and deliver organization-wide improvements. What You'll Bring - 10+ years of hands-on experience building and maintaining large-scale, production-level systems. - Experience as a Technical Lead or in a similar leadership capacity. - Exceptional coding skills, with expertise in cloud architecture, distributed systems, and algorithms. - Proven ability to independently lead projects, including requirement gathering, system design, implementation, testing, and deployment. - A track record of mentoring and guiding engineers to achieve their potential. - A 0→1 mindset with the ability to build systems and processes from scratch. - Deep interest in modern development practices and a passion for shaping the future of crypto technology. Nice to Have - Prior work with time-series based monitoring and observability systems. - Knowledge of TypeScript, Go, GraphQL, and AWS - A degree in Computer Science or a related field. - A love for unicorns Minimum full-time salary of $207,000-$259,000. Disclosure in accordance with New York City's Pay Transparency Law. Full Time employees at Uniswap Labs are also eligible for other compensation elements, including tokens, and benefits, dependent on the position type. Uniswap Labs' Full-Time employee benefits include company-paid medical, dental, & vision for you and your dependents, wellness offerings including a partnership with Equinox Fitness Clubs, 401(k) with 4% employer contribution, annual $1,500 education stipend, unlimited and encouraged time off, up to 16 weeks paid parental leave, home office setup stipend for remote employees and daily lunches at NY headquarters (all benefits are subject to applicable taxes and based on eligibility). Uniswap Labs is committed to diversity in our workforce and is proud to be an Equal Opportunity Employer (EEO). We provide employment opportunities without regard to age, race, color, ancestry, national origin, religion, disability (including gender dysphoria and similar gender-related conditions), sex, gender identity or expression, sexual orientation (including actual or perceived heterosexuality, homosexuality, bisexuality, and asexuality), veteran status, military status, domestic violence victim status, reproductive health decision making or any other protected category. In addition, Uniswap Labs participates in E-Verify. You can view the E-Verify poster here and the Right to Work poster here.