Front End Developer Junior jobs in United States

At Cast Iron Games, we build technically ambitious games in a calm, focused environment, where every team member has a voice. Based in Tileyard North, we collaborate with high quality partners on high-quality projects, guided by clarity, consistency, and mutual respect.

We’re a young and growing studio, but our team is made up of experienced developers who’ve worked across AAA and independent titles. Together, we’re building a supportive, balanced environment where great work happens without crunch.

As a Senior Unreal Programmer, you'll be a key contributor on our engineering team, trusted to scope, implement, and maintain complex game or engine-level features. You'll collaborate across disciplines, support less experienced developers, and help shape the technical direction of the project through your initiative and experience.

You'll write clean, performant C++ code and Blueprints and be expected to deeply understand the systems you work on — from replication and architecture to profiling and debugging.

• Own the development of large systems or features within Unreal 5
• Write clean, maintainable code using both C++ and Blueprints
• Collaborate closely with design, art, and production to ensure implementation aligns with projects goals
• Contribute to planning and task breakdowns with accurate estimates
• Proactively identify technical risks or design issues, and work with leads to resolve them
• Provide mentorship and code reviews for junior and mid-level engineers
• Optimise systems for performance, scalability, and platform constraints
\
• Write and improve internal documentation, tools, pipelines where needed

• Strong experience working with Unreal 4 or 5 in a production environment
• Proficiency in C++, Blueprints, and Unreal’s component-based architecture
• Experience owning significant game systems, tools and tech subsystems
• Understanding of replication, memory/performance profiling, and debugging workflows
• Able to balance short-term priorities with long-term code maintainability
• Comfortable using Perforce or similar source control, and task/bug tracking tools such as Jira

• Comfortable working independently, scoping and delivering complex features
• Proactive in raising blockers, discussing trade-offs and offering solutions
• Supportive of teammates through reviews, pairing and knowledge sharing
• Communicates clearly with both technical and non-technical collaborators
• Passionate about quality, clarity and making others more effective

• Familiarity with AI, animation systems, or physics frameworks in Unreal 5
• Experience with multiplayer systems and networking in Unreal
• Shipped a title using Unreal 4 or 5 on console such as Xbox, PlayStation, Switch
• Built tooling or automation to support QA and build processes

• A people-first studio with a clear focus on craft, clarity, and collaboration
• A high-trust team where experience is valued and voices are heard
• A respectful, experienced team with a strong engineering culture
• The opportunity to ship performance-optimised, cross-platform games you’re proud of
• Projects that offer real variety. Different game engines, new challenges, constant growth
• Creative surroundings at Tileyard North, with a supportive creative community
• Competitive salary, flexible hours and professional development support
• Opportunities to lead with clarity, autonomy, and real impact
• No crunch. No egos. Just good code, good people and good games

• Start your day any time between 8:00am and 10:00am
• 35 working hours per week with a 1-hour lunch break (with the opportunity to flex down to 30 minutes or up to 2 hours)
• 25 days annual leave + 8 days bank holiday
• 1 day leave for your birthday and 1 day leave if you’re moving house
• Length of service increases are 1 day per year of service up to maximum of 8 additional days
• Up to 8 days discretionary annual leave during our end of year break
• Potential for annual performance bonus
• Free breakfast options, juice, hot drinks and fruit
• Employee referral bonus (up to £2000!)
• Group Life Assurance – 4 x annual salary payable to nominated beneficiaries through an expression of wishes form.
• Income Protection – covers you up for up to 50% of monthly salary for 2 years (after a 26 week deferred period, i.e. when SSP runs out)
• Critical Illness Cover – lump sum of 1 x annual salary on diagnosis of a critical illness
• Cycle to Work Scheme
• EV & Hybrid Car Scheme
• Tech Purchase Scheme – split the cost of Tech or Home electronics through salary deduction, interest free
• Healthcare Cash plan – claim back the cost of everyday healthcare, dental, physio, chiropractor, opticians, podiatry etc
• Private Medical Insurance with Vitality
• Reward Gateway with cashback and discounts on 900+ retailers
• Employee Assistance Programme including Virtual GP service
• Wellbeing Centre based on Mind, Move, Munch and Money