Senior Fullstack Engineer

WHY DEPT®?

We are a Growth Invention company built to help the world’s most ambitious brands grow faster. Operating at the intersection of technology and marketing, we create what is next by pioneering ideas, acting fast, and moving further because standing still just is not in our DNA.

We are drawn to people who stay curious, move with intent, and never stop inventing. Our culture runs on three values: better together, relentlessly curious, and get sh*t done. It is how we work, how we grow, and how we make things that matter.

At DEPT®, you will find the freedom to explore, the space to collaborate, and the trust to make a real impact for our clients, for each other, and for the world we are helping to build.

ABOUT THE ROLE

We're looking for a Senior Software Engineer to play a central role in a large-scale platform re-architecture for a leading financial intelligence client. This isn't a lift-and-shift; it's a ground-up rebuild of a suite of products used across public finance and structured finance sectors, including portfolios, alerts, ratings tools, and sector-specific applications.

The legacy platform (.NET, SQL Server, Solr, MongoDB) is being replaced with a modern cloud-native stack ( React and TypeScript (frontend), Node.js (backend services), AWS with Lambda (serverless compute), and PostgreSQL, and parity must be maintained throughout the transition. You'll be working across the full stack, with a strong emphasis on analytical thinking, sound architecture, and the ability to hold complexity across both old and new systems simultaneously.

We are primarily focused on technical expertise in the new platform’s tech stack, but overall, the ability to clear up ambiguity, reverse engineer rules from existing code and persevere in unfamiliar technical environments is critical.

WHAT YOU'LL DO

• Own and deliver workstreams across the full stack as the platform migration progresses, sector by sector
• Contribute to architectural decisions on the new platform — this is a re-architecture, not a rewrite
• Help maintain and extend the legacy platform while parity is being built on the new stack
• Work across a range of product areas: portfolios, alerts, ratings tools, and sector-specific applications
• Contribute to the migration from MS SQL Server to PostgreSQL and the deprecation of Solr
• Participate in technical design discussions and translate requirements into clear engineering tasks
• Proactively surface blockers, risks, and dependencies before they impact delivery
• Contribute to code quality through reviews and informal knowledge-sharing with teammates

WHAT WE'RE LOOKING FOR

• 5+ years of experience delivering production software applications
• Strong full-stack capability across modern frontend (React, TypeScript) and backend (Node.js) technologies
• Solid understanding of relational databases — PostgreSQL experience preferred; SQL Server background useful
• Comfortable operating across legacy and modern stacks in parallel — you don't need everything to be greenfield
• An architectural mindset: you think in systems, not just features
• Strong analytical skills — this domain involves complex, interconnected financial data
• AWS experience, ideally including serverless patterns (Lambda)
• Proficient with GenAI coding tools as part of your everyday workflow
• Independently productive: owns workstreams, knows when to ask for help, doesn't spin wheels
• Experience with search platforms (Solr or similar) is a heavy plus
• .NET or legacy platform experience is a bonus during the transition period.
  
  

WHAT DO WE OFFER?

• We enjoy spending time together, working closely with other local colleagues, and getting to know one another. Our Buenos Aires offices (Villa Crespo or Mar del Plata) are fully equipped with refreshments and great common spaces!
• Premium healthcare through OSDE for the employee and their immediate family members
• Mendel prepaid card with a monthly allowance for grocery purchases
• Monthly reimbursements for Wi-Fi/electricity expenses
• Monthly reimbursements for training/English classes
• 100% covered “Plan Total” membership at Sportclub
• Access to our benefits platform through Bonda
• A flexible vacation policy

WE SUPPORT YOU BEING YOU:

DEPT® is an equal opportunity employer (EOE). We believe our work is its best when our people feel safe and free to be themselves. We’re committed to an inclusive and barrier-free recruitment and selection process and workplace, regardless of anyone’s identity, background, beliefs, lifestyle or disabilities. So tell us about any accommodations you need. It’s totally confidential and only used to make sure you feel fully supported at every step.

DEPT® participates in E-Verify, meaning your Form I-9 information will be sent to the federal government to confirm you are authorized to work in the U.S.

We are a B Corp-certified company passionate about purpose-driven work. Our hope is that you can feel good about the contributions DEPT® is making to the world and we always have an open door for your ideas in making the world a better place.

DEPT® is a Growth Invention company built to help the world’s most ambitious brands grow faster. Operating at the intersection of technology and marketing, our 4,000+ specialists deliver growth invention across Brand & Media, Experience, Commerce, CRM, and Technology & Data. We’re 50|50 tech and marketing, partner-led, and first to move. Clients include Google, Lufthansa, Coach, eBay, and OpenAI.

Learn more about DEPT®

DIVERSITY, EQUITY, & INCLUSION

At DEPT®, we take pride in creating an inclusive workplace where everyone has an equal opportunity to thrive. We actively seek to recruit, develop, nurture, and retain talented individuals from diverse backgrounds, with varying skills and perspectives.

Not sure you meet all qualifications? Apply, and let us decide! Research shows that women and members of underrepresented groups tend not to apply for jobs when they think they may not meet every requirement, when in fact they do. We believe in giving everyone a fair chance to shine.

We also encourage you to reach out to us and discuss any reasonable adjustments we can make to support you throughout the recruitment process and your time with us.

Want to know more about our dedication to diversity, equity, and inclusion? Check out our efforts here.

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