Senior Software Engineer (Data and AI)

Sela; United States; Remote; USD 100,000 - 150,000; Full time

Job summary

Sela is seeking a Senior Software Engineer (Data and AI) to design, build, and ship agentic systems for our clients. This hands-on senior role includes setting technical direction, leading architecture, and coding across Python, TypeScript, and .NET.

You will own delivery end to end, mentor engineers, and communicate clearly with client stakeholders. We offer growth, education, and a strong engineering culture in a fully remote US role.

Qualifications

• Senior Software Engineer with 7+ years of professional experience.
• Proficiency in Python, TypeScript, or .NET; able to work across all three.
• Experience designing and shipping production-grade, reliable systems.
• Track record delivering LLM-powered applications to production.
• Experience mentoring engineers and leading design reviews.
• Strong communication with client stakeholders and non-technical audiences.

Responsibilities

• Design, build, and ship agentic systems for client engagements.
• Set technical direction and own delivery end-to-end.
• Lead architecture and design decisions while contributing substantial code.
• Mentor teammates and raise engineering standards across projects.
• Collaborate with client stakeholders to scope problems and shape solutions.

Skills

Python

TypeScript

C#/.NET

LLM-powered applications

React

Git

CI/CD

Mentoring engineers

Client stakeholder communication

Eastern Time work

Technical design leadership

Tools

Docker

Kubernetes

Terraform

LangGraph

Langfuse

Job description

Sela is a global cloud partner, dedicated to guiding our clients in their cloud journey. With deep partnerships across AWS, GCP, and Azure and a growing practice at the intersection of cloud and AI we help enterprises modernize infrastructure, migrate workloads, and build intelligent, resilient systems. Our team has over three decades of experience delivering excellence and thought leadership to clients. We take pride in our strong engineering culture, our drive for excellence, and our supportive team.

What We Are Looking For

We're looking for an exceptional Senior Software Engineer (Data and AI) to design, build, and ship agentic systems for our clients. This is a hands-on senior role: you'll set technical direction on client engagements, lead architecture and design decisions, and still write a lot of the code yourself across Python, TypeScript, and .NET. You'll own delivery end to end and make sure what you build stays reliable and maintainable once it's in a client's hands.

The tooling in this space is changing quickly and the standards are still settling. We'd like someone who keeps up with it, can tell the difference between what's ready for client work and what isn't, and can explain that judgment clearly to clients and to the rest of the team.

If you take ownership of your work, are a great communicator, and thrive in environments with changing requirements, this job is probably right up your alley. You'll work directly with client stakeholders to scope problems and shape solutions, and you'll help mentor and level up other engineers on the team. Our team includes network architects, cloud architects, software developers, and security engineers. You will work alongside experts with significant real-world experience on high-impact projects. We also provide many opportunities for growth and will cover the cost of relevant education and certification.

Desired Skills

• Deep understanding of software engineering fundamentals, architecture, and system design
• Expert-level proficiency in at least one of Python, TypeScript, or .NET, and solid working ability across all three
• Proven track record designing and shipping LLM-powered applications to production users, and owning their reliability after launch
• Working experience with agentic interoperability standards such as A2A (Agent2Agent), AG-UI, and MCP
• Experience building modern front-end applications with React
• Experience designing evaluation, tracing, and debugging approaches for non-deterministic systems
• Track record of setting software design, testing, and code quality standards for a team
• Strong experience with Git, CI/CD pipelines, and modern development workflows
• 7+ years of professional software engineering experience, including leading technical design on production systems
• Comfortable owning ambiguous problems from scoping through delivery with minimal oversight
• Quick at picking up new technologies and frameworks
• Excellent written and verbal communication skills, including with client stakeholders and non-technical audiences
• Experience mentoring engineers and leading code and design reviews
• Must be based in the United States, authorized to work in the US, and able to work primarily on Eastern Time

Great to Have

• Experience with LiteLLM or similar model gateway and proxy layers
• Experience with Langfuse or comparable LLM observability and evaluation tooling
• Experience with agent orchestration frameworks such as Microsoft Agents Framework or LangGraph
• Retrieval-augmented generation, vector stores, and context engineering at scale
• Production experience with AWS and general cloud services, including Bedrock, Azure AI Foundry, or Vertex AI
• Experience with infrastructure-as-code tools such as Terraform
• Experience with containerization and orchestration such as Docker and Kubernetes
• Consulting or professional services experience, including client-facing technical scoping and estimation
• Strong opinions about best practices in software development, but open to collaboration

Why Join Us?

• Work with a smart, tight-knit team on meaningful engineering projects
• Build agentic systems for real clients, not demos
• Own technical direction on client engagements and help shape how we build as a practice
• Opportunities for growth and learning in both consulting and product spaces
• We offer top medical, dental, and vision insurance for you and your dependents (with options for 100% covered)
• FSA and HSA plans available
• Retirement matching (up to 3%)
• Unlimited PTO
• Occasional lunch and learns, happy hours, and team get-togethers
• Home office stipend
• Modern tools to get your job done (MacBook, etc)
• Collegial workplace focused on individual growth

This is a fully remote, full-time position. Only open to candidates based in the United States. The base salary range for this position is $100k-150k, depending on experience.

Sela is an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other legally protected status.