Senior Software Engineer

MCS Group - USA | Your Specialist Recruitment Firm; Boston (MA); On-site; USD 120,000 - 180,000; Full time

Job summary

MCS Group - USA | Your Specialist Recruitment Firm is helping a long-established global business in the Boston area modernize platforms, consolidate legacy systems and build new digital products. This Senior Software Engineer role emphasizes ownership, curiosity and the ability to work across multiple domains.

You'll join an evolving engineering organization where engineers shape how things are built, partnering with business teams to deliver value and drive AI-enabled initiatives in a

Qualifications

• 5+ years of software engineering experience.
• Able to work on multiple domains and product areas.
• Strong problem-solving and curiosity.

Responsibilities

• Build new customer-facing platforms and digital products.
• Modernize and replace legacy systems.
• Own features from idea through production.
• Collaborate with business teams to define requirements.
• Contribute to AI-enabled tools and technology where appropriate.

Skills

Full-stack

Backend-focused

Ownership

Business collaboration

Ambiguity handling

Tools

Java

AWS

GCP

Job description

What if your next software role wasn't about joining a team to maintain something that already exists?

What if you could actually help build what comes next?

I'm working with a long-established global business operating at the intersection of technology, secure manufacturing and digital products. They support some of the world's most recognizable organizations, producing both physical and digital solutions used in highly secure, regulated environments.

But this isn't a traditional manufacturing technology environment.

They're in the middle of a major transformation, modernizing platforms, consolidating legacy systems, building new digital products and using AI to completely rethink how the business operates.

And they're building the engineering team to do it.

The Role

They're looking for a Senior Software Engineer with 5+ years of experience.

Rather than hiring narrowly against one specific product or team, they're interested in meeting strong engineers and figuring out where their experience, interests and strengths fit best.

You could be working on:

• New customer-facing platforms and digital products
• Modernizing and replacing legacy systems
• Data and analytics platforms
• Content and document technology
• APIs, integrations and distributed systems
• Internal platforms that support global manufacturing and operations
• AI-enabled tools and applications
• Building entirely new products from the ground up

There's a real opportunity here to own a product, problem or domain, rather than simply picking up tickets from a backlog.

The engineering organization itself is still evolving, so the people joining now will have a genuine influence over how things are built.

The Right Person

This is where things are a little different.

The exact tech stack matters less than how you think.

They want engineers who are curious, technically strong and naturally inclined to build things.

People who see a problem and start thinking:

"There has to be a better way to do this."

You'll likely have 5+ years of software engineering experience.

What matters more is that you:

• Are a genuine full-stack or backend-focused engineer
• Enjoy solving ambiguous problems and figuring things out
• Can work directly with business teams and understand what actually needs to be built
• Want ownership and responsibility
• Are comfortable working in an environment where not everything has already been defined
• Have experience taking features or products from idea through to production
• Can help guide less experienced engineers where neededAre actively using AI in your development workflow, or building with it yourself
• See AI as something that changes how software is built, not simply another tool on the list

If you're the person experimenting with Claude, Copilot, agents, automation or new frameworks before someone tells you to, you'll probably fit in well here.

Technology

There isn't one rigid stack.

The current environment includes technologies such as:

But strong engineers coming from backgrounds such as Java, AWS, GCP or other modern object-oriented/backend environments will absolutely be considered.

They would rather hire someone with strong engineering fundamentals and the ability to learn than reject a great person because they have AWS instead of Azure on their resume.

Why This One Is Interesting

You're joining an established business with global customers and real-world products - but the technology environment has almost a startup mentality.

There are decades of systems to modernize, entirely new products to build and significant investment going into technology and AI.

That means there is a lot of space to make an impact.

You could join at Senior Software Engineer level and end up owning a major product area because you saw an opportunity and ran with it.

There aren't layers of committees deciding exactly what you are allowed to work on.

If you're currently feeling underused, boxed into a narrow role or like one engineer among thousands, this could be a very different environment.

Location

The roles are based onsite in the Greater Boston area, near Dedham, MA.

The team is intentionally building an in-person engineering culture because of the speed of development, collaboration required and the close connection between technology and the physical operations of the business.

If you like the idea of actually sitting with the people you're building for, seeing the operation first hand and having conversations that turn into products, this environment makes a lot of sense.

Sponsorship is not available now or in the future.